Initial commit

.gitignore

@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk

Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "rust-most"
+version = "0.1.0"
+authors = ["greg <greg.shuflin@protonmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}

vendor/most-5.1.0/COPYING

@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                          675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

vendor/most-5.1.0/COPYRIGHT

@@ -0,0 +1,17 @@
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018,2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.

vendor/most-5.1.0/Makefile

@@ -0,0 +1,43 @@
+# -*- sh -*-
+
+#This is a UNIX-only makefile.
+
+
+SHELL = /bin/sh
+
+all: makefiles
+	cd src; $(MAKE) all
+Makefile: configure autoconf/Makefile.in
+	@echo "Makefile is older than the configure script".
+	@echo "Please re-run the configure script."
+	@exit 1
+src/Makefile: configure src/Makefile.in src/config.hin
+	@echo "src/Makefile is older than its dependencies".
+	@echo "Please re-run the configure script."
+	@exit 1
+makefiles: Makefile src/Makefile
+clean:
+	/bin/rm -f *~
+	cd src; $(MAKE) clean
+#
+distclean:
+	/bin/rm -f *~ Makefile config.status config.log config.cache files.pck
+	cd src; $(MAKE) distclean
+#
+install: all
+	cd src; $(MAKE) install
+#
+
+# The symlinks target is for my own private use.  It simply creates the object
+# directory as a symbolic link to a local disk instead of an NFS mounted one.
+symlinks:
+	cd src; $(MAKE) symlinks
+configure: autoconf/aclocal.m4 autoconf/configure.ac
+	cd autoconf && autoconf && mv ./configure ..
+update: autoconf/config.sub autoconf/config.guess
+autoconf/config.guess: /usr/share/misc/config.guess
+	/bin/cp -f /usr/share/misc/config.guess autoconf/config.guess
+autoconf/config.sub: /usr/share/misc/config.sub
+	/bin/cp -f /usr/share/misc/config.sub autoconf/config.sub
+
+.PHONY: all clean distclean install symlinks update makefiles

vendor/most-5.1.0/NEWS

@@ -0,0 +1,12 @@
+NEWS for v5.1.0
+
+This is primarily a maintenance release.
+
+The most notable update is that regular expression (RE) searches are
+supported again.  In ancient times, most supported RE searches, but
+was RE support was dropped was dropped when UTF-8 support was added.
+The default is still to use a non-RE search. The -r command line
+switch may be used to make the default a RE-based search.  Within
+most, ":r" may be used to toggle the search type between RE and
+non-RE.
+

vendor/most-5.1.0/README

@@ -0,0 +1,95 @@
+Compiling MOST requires an ANSI C compiler.  In addition you MUST have
+a copy of the S-Lang library version 2.X.  Version 1 is no longer
+supported.  This library is available from
+<http://www.jedsoft.org/slang/>.
+
+                          INSTALLATION INSTRUCTIONS
+
+On Unix, you should be able to simply type:
+
+    ./configure; make
+
+at the Unix prompt.   If you are using CYGWIN, you will need to ensure
+that libslang.dll is on your PATH; otherwise the chkslang program will
+not run.
+
+If using DJGPP or MINGW32, do:
+
+    <edit src/makefile.w32, setting ARCH to either dgj or gw32>
+    cd src
+    make -f makefile.w32
+
+For VMS, edit the file `vmsmake.com'.  When finished, either type `@vmsmake'
+or `@vmsmake gcc' at the VMS prompt.  Once MOST has been created, it must be
+installed as a foreign command.  This means that you must first type:
+
+      $  most :== $device:[dir.containing.most]most.exe
+
+I suggest that you first build MOST then view the doc file using MOST (`most
+most.doc').  If you need help, hit the `h' key from within MOST.
+
+MOST understands the following environment variables:
+
+    MOST_SWITCHES
+    MOST_EDITOR, SLANG_EDITOR, EDITOR
+    MOST_INITFILE
+    MOST_HELP
+
+  1. MOST_SWITCHES is a list of commonly used switches.
+
+  2. MOST_EDITOR and SLANG_EDITOR are formatted strings describing what
+     editor to use.  The string can contain %s and %d formatting descriptors
+     that represent the file name and line number, respectively.  For
+     example, if JED is your editor, then set MOST_EDITOR to 'jed %s -g %d'.
+     Since MOST is just one of several programs that use the S-Lang library,
+     I suggest that you use SLANG_EDITOR instead of MOST_EDITOR.
+
+ 3. MOST_INITFILE specifies a configuration file for MOST.  One can specify
+    keymaps, colors, etc. via this file.  In the absence of
+    MOST_INITFILE, the program will look for a file call .mostrc in
+    the home directory (most.rc on non-Unix systems).
+
+    See `lesskeys.rc' for an example of a key definition file that
+    causes MOST to emulate the `less' pager.  See also most-fun.txt
+    for a list of functions that can be used for key definitions.  The
+    file `most.rc' list the bindings that are built-in to the
+    viewer.
+
+ 4. If MOST_HELP is defined to point to an existing file, MOST will load a
+    file as a help file.  This is useful for describing custom keymaps.
+
+Any problems with MOST should be reported to jed@jedsoft.org.
+
+  [Note also that this is really the first non-trivial C program that
+  I ever wrote.  Because of this, much of the code appears very
+  amateurish.  For example, I tried very hard to avoid C constructs
+  that some authors strongly discourage, e.g., goto, continue,
+  break.  Of course this made some of the code convoluted, e.g.,
+  contrast
+
+      int test = 1;
+      while (test)
+       {
+           function ();
+
+           if (-1 == some_function ())
+	     test = 0;
+
+	   if (test)
+	     some_other_function ();
+       }
+
+   with:
+
+       while (1)
+         {
+	    function ();
+	    if (-1 == some_function ()) break;
+	    some_other_function ();
+	 }
+
+   I have since concluded that many text-book authors never actually
+   wrote anything non-trivial.  Whenever I work on MOST, I try to make
+   some changes in an effort to clean it up. ]
+
+--John Davis

vendor/most-5.1.0/autoconf/Makefile

@@ -0,0 +1,8 @@
+../configure: aclocal.m4 configure.ac
+	/bin/rm -rf autom4te.cache
+	autoconf && mv ./configure ..
+update: config.sub config.guess
+config.guess: /usr/share/misc/config.guess
+	/bin/cp -f /usr/share/misc/config.guess config.guess
+config.sub: /usr/share/misc/config.sub
+	/bin/cp -f /usr/share/misc/config.sub config.sub

vendor/most-5.1.0/autoconf/Makefile.in

@@ -0,0 +1,43 @@
+# -*- sh -*-
+
+#This is a UNIX-only makefile.
+
+@SET_MAKE@
+SHELL = /bin/sh
+
+all: makefiles
+	cd src; $(MAKE) all
+Makefile: configure autoconf/Makefile.in
+	@echo "Makefile is older than the configure script".
+	@echo "Please re-run the configure script."
+	@exit 1
+src/Makefile: configure src/Makefile.in src/config.hin
+	@echo "src/Makefile is older than its dependencies".
+	@echo "Please re-run the configure script."
+	@exit 1
+makefiles: Makefile src/Makefile
+clean:
+	/bin/rm -f *~
+	cd src; $(MAKE) clean
+#
+distclean:
+	/bin/rm -f *~ Makefile config.status config.log config.cache files.pck
+	cd src; $(MAKE) distclean
+#
+install: all
+	cd src; $(MAKE) install
+#
+
+# The symlinks target is for my own private use.  It simply creates the object
+# directory as a symbolic link to a local disk instead of an NFS mounted one.
+symlinks:
+	cd src; $(MAKE) symlinks
+configure: autoconf/aclocal.m4 autoconf/configure.ac
+	cd autoconf && autoconf && mv ./configure ..
+update: autoconf/config.sub autoconf/config.guess
+autoconf/config.guess: /usr/share/misc/config.guess
+	/bin/cp -f /usr/share/misc/config.guess autoconf/config.guess
+autoconf/config.sub: /usr/share/misc/config.sub
+	/bin/cp -f /usr/share/misc/config.sub autoconf/config.sub
+
+.PHONY: all clean distclean install symlinks update makefiles

vendor/most-5.1.0/autoconf/configure.ac

@@ -0,0 +1,76 @@
+dnl -*- sh -*-
+AC_INIT(src/most.c)
+JD_INIT
+JD_ANSI_CC
+
+AC_CONFIG_AUX_DIR(autoconf)
+AC_PROG_MAKE_SET
+AC_PROG_INSTALL
+AC_CANONICAL_HOST
+
+JD_ELF_COMPILER
+
+# determine X include and needed libs
+AC_PATH_XTRA
+
+# Implementation of the --disable-dev-random switch.
+AC_MSG_CHECKING([if you want to use mmap if available])
+AC_ARG_ENABLE(mmap,
+   AC_HELP_STRING([--disable-mmap],[disable the use of mmap]),
+   jd_use_mmap=$enableval, jd_use_mmap=yes)
+AC_MSG_RESULT($jd_use_mmap)
+case "x$jd_use_mmap" in
+xyes )
+  AC_DEFINE(USE_MMAP)
+  ;;
+esac
+
+#Check these header since they cause trouble
+AC_CHECK_HEADERS( \
+stdlib.h \
+unistd.h \
+memory.h \
+malloc.h \
+termios.h \
+sys/mman.h \
+)
+
+AC_HEADER_DIRENT
+
+AC_TYPE_MODE_T
+AC_TYPE_PID_T
+AC_TYPE_UID_T
+AC_TYPE_SIZE_T
+
+AC_CHECK_SIZEOF(short, 2)
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(float, 4)
+AC_CHECK_SIZEOF(double, 8)
+
+JD_CHECK_LONG_LONG
+JD_LARGE_FILE_SUPPORT
+
+AC_CHECK_FUNCS(\
+memset \
+memcpy \
+putenv \
+getcwd \
+mmap \
+snprintf \
+getpgrp tcgetpgrp \
+)
+
+JD_SET_OBJ_SRC_DIR
+JD_TERMCAP
+JD_WITH_LIBRARY(slang)
+JD_GCC_WARNINGS
+JD_GET_MODULES(src/modules.lis)
+JD_CREATE_MODULE_ORULES
+
+AC_CONFIG_HEADER(src/sysconf.h:src/config.hin)
+AC_OUTPUT(Makefile:autoconf/Makefile.in src/Makefile)
+
+JD_CREATE_ORULE(chkslang)
+JD_APPEND_RULES(src/Makefile)
+

vendor/most-5.1.0/autoconf/install.sh

@@ -0,0 +1,251 @@
+#!/bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5 (mit/util/scripts/install.sh).
+#
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission.  M.I.T. makes no representations about the
+# suitability of this software for any purpose.  It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.  It can only install one file at a time, a restriction
+# shared with many OS's install programs.
+
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+    case $1 in
+	-c) instcmd="$cpprog"
+	    shift
+	    continue;;
+
+	-d) dir_arg=true
+	    shift
+	    continue;;
+
+	-m) chmodcmd="$chmodprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-o) chowncmd="$chownprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-g) chgrpcmd="$chgrpprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-s) stripcmd="$stripprog"
+	    shift
+	    continue;;
+
+	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
+	    shift
+	    continue;;
+
+	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+	    shift
+	    continue;;
+
+	*)  if [ x"$src" = x ]
+	    then
+		src=$1
+	    else
+		# this colon is to work around a 386BSD /bin/sh bug
+		:
+		dst=$1
+	    fi
+	    shift
+	    continue;;
+    esac
+done
+
+if [ x"$src" = x ]
+then
+	echo "install:	no input file specified"
+	exit 1
+else
+	true
+fi
+
+if [ x"$dir_arg" != x ]; then
+	dst=$src
+	src=""
+	
+	if [ -d $dst ]; then
+		instcmd=:
+		chmodcmd=""
+	else
+		instcmd=mkdir
+	fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad 
+# if $src (and thus $dsttmp) contains '*'.
+
+	if [ -f $src -o -d $src ]
+	then
+		true
+	else
+		echo "install:  $src does not exist"
+		exit 1
+	fi
+	
+	if [ x"$dst" = x ]
+	then
+		echo "install:	no destination specified"
+		exit 1
+	else
+		true
+	fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+	if [ -d $dst ]
+	then
+		dst="$dst"/`basename $src`
+	else
+		true
+	fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='	
+'
+IFS="${IFS-${defaultIFS}}"
+
+oIFS="${IFS}"
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS="${oIFS}"
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+	pathcomp="${pathcomp}${1}"
+	shift
+
+	if [ ! -d "${pathcomp}" ] ;
+        then
+		$mkdirprog "${pathcomp}"
+	else
+		true
+	fi
+
+	pathcomp="${pathcomp}/"
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+	$doit $instcmd $dst &&
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+	if [ x"$transformarg" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		dstfile=`basename $dst $transformbasename | 
+			sed $transformarg`$transformbasename
+	fi
+
+# don't allow the sed command to completely eliminate the filename
+
+	if [ x"$dstfile" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		true
+	fi
+
+# Make a temp file name in the proper directory.
+
+	dsttmp=$dstdir/#inst.$$#
+
+# Move or copy the file name to the temp name
+
+	$doit $instcmd $src $dsttmp &&
+
+	trap "rm -f ${dsttmp}" 0 &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
+
+# Now rename the file to the real destination.
+
+	$doit $rmcmd -f $dstdir/$dstfile &&
+	$doit $mvcmd $dsttmp $dstdir/$dstfile 
+
+fi &&
+
+
+exit 0

vendor/most-5.1.0/autoconf/mkinsdir.sh

@@ -0,0 +1,32 @@
+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Public domain
+
+errstatus=0
+
+for file
+do
+   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+   shift
+
+   pathcomp=
+   for d in ${1+"$@"} ; do
+     pathcomp="$pathcomp$d"
+     case "$pathcomp" in
+       -* ) pathcomp=./$pathcomp ;;
+     esac
+
+     if test ! -d "$pathcomp"; then
+        echo "mkdir $pathcomp" 1>&2
+        mkdir "$pathcomp" || errstatus=$?
+     fi
+
+     pathcomp="$pathcomp/"
+   done
+done
+
+exit $errstatus
+
+# mkinstalldirs ends here

vendor/most-5.1.0/autoconf/scripts/getsyslibs.sh

@@ -0,0 +1,77 @@
+#!/bin/sh
+
+# This script parses /etc/ld.so.conf and returns lib and include directories 
+# in a form that JD_CHECK_FOR_LIBRARY can grok.
+
+SH_TRUE=0
+SH_FALSE=1
+
+# Usage: sh_substr string a b  ==> string[a:b]  (1s-based)
+sh_substr()
+{
+   echo "$1" | cut "-c" "$2-$3"
+}
+
+# if sh_is_comment line; then ...
+sh_is_comment()
+{
+  ch=`sh_substr "$1" 1 1`
+  if test "X$ch" = "X#" -o "X$ch" = "X"
+  then
+     return $SH_TRUE;
+  fi
+  return $SH_FALSE;
+}
+
+sh_read_ldsoconf ()
+{
+   file="$1"
+   dirlist=""
+   if test ! -f "$file"
+   then
+     return $SH_FALSE;
+   fi
+
+   while read line
+   do
+     if sh_is_comment "$line"; then continue; fi
+     read p1 p2 pn << EOF
+       ${line}
+EOF
+     if test "$p1" = "include"
+     then
+       for file in $p2
+       do
+         dirs=`sh_read_ldsoconf "$file"`
+         dirlist="$dirlist $dirs"
+       done
+     else
+       dirlist="$dirlist $p1"
+     fi
+   done < "$file"
+   echo "$dirlist"
+}
+
+dirs=`sh_read_ldsoconf "/etc/ld.so.conf"`
+XY=""
+for Y in $dirs
+do
+   if test "/usr/lib" = `sh_substr $Y 1 8`
+   then
+     X="/usr/include"
+   else
+     if test "/lib" = `sh_substr $Y 1 4`
+     then
+       X="/usr/include"
+     else
+       X=`dirname $Y`"/include"
+     fi
+   fi
+   if test -d "$Y"
+   then
+      XY="$XY $X,$Y"
+   fi
+done
+
+echo $XY
+

vendor/most-5.1.0/changes.txt

@@ -0,0 +1,201 @@
+-*- mode: text; mode: fold -*-
+Changes since 5.0.0
+1. src/Makefile.in: Install docs in $prefix/share/doc
+2. src/most.h,sysdep.c: win32-specific patches (Andrew Wu)
+3. most.1: Typo corrected (Stephane Blondon)
+4. src/line.c: removed redundant switch in the most_forward_columns
+   function.
+5. src/buffer.c: avoid call to SLutf8_skip_char if the character is
+   ascii.
+6. src/file.c: Added an option to most_read_file_dsc to skip the line
+   count and made use of it in search.c to speed up the searches a bit.
+7. src/display.c: When wrapping a line, the color was not "wrapping".
+8. src/line.c: When moving forward n columns, skip over trailing 0
+   length color escape sequences.
+9. src/buffer.c: If a color escape sequence occurs at the end of a
+   line line whose display width is equal to the terminal width, do
+   not wrap the line.
+10. src/keym.c: Limit the amount of loops when going to the end of the
+    buffer.  It is possible for a run-away process to write to a
+    logfile that most is viewing causing it to loop forever seeking the
+    end of the file, which may never come.
+11. src/help.c: Change DELETE to BACKSPACE.  file.c: Indicate that
+    chdir return value is being ignored.
+12. configure,autoconf/*: Updated configure script and related files.
+13. src/most.c: when acting as `cat`, a file pointer was not being
+    closed (George Danchev).
+14. src/*.c: Removed some unused variables.
+15. configure: Use /etc/ld.so.conf to located system lib paths.
+16. autoconf/*: updates
+17. src/line.c, buffer.c: Fixed an issue with the display of
+    double-width characters to address
+    <https://bugs.launchpad.net/ubuntu/+source/most/+bug/312454>.
+18. src/*.[ch]: Updated copyright year
+19. src/search.c: Rewrote the search functions from scratch.  Both
+    ordinary and regexp searches are now supported.  Use -r to startup
+    with regular-expression searches.
+20. src/keym.c: Added support for Home/End keys (top/bottom of buffer).
+21. src/line.c: Added a work-around for programs that try colorize the
+    output using the clear-to-end-of-line escape sequence (ESC[K)
+    without regard for the value of isatty(fileno(sdout)).  Most will
+    ignore ESC[K unless invoked with -v.
+22. configure: Updated to use aclocal.m4 v0.3.3-1
+23. src/Makefile.in: Added LDFLAGS to chkslang linker line (Denis Pronin)
+24. *: Converted the man page source most.1 to text-macro, and
+    regenerated it.  Updated copyrights for upcoming release.
+25. Updated manifest and copyrights updated for 2019 release.
+
+{{{ Previous Versions
+Changes since 4.10.2
+0. src/most.c: version bumped to 5.0.0-x
+1. src/line.c: Added support for embedded ANSI escape sequences that
+   seem to be more common in man pages.
+2. When switching searching directions, and no search string was
+   entered at the search prompt, use the previous string.
+3. Added patches for UTF-8 support kindly provided by Javier Kohen.
+4. src/most.c: Removed references to Kanji from the usage message.
+   Kanji is not supported by slang-2.  Use Unicode.
+5. src/file.c: Most will automatically start up in binary mode if the
+   file contains a nul-byte in the first 512 characters.  Previously,
+   it would switch into binary mode when the file contained any
+   characters with the most significant bit set.
+6. autoconf/config.sub,config.guess: Updated to more recent versions.
+7. src/most.c: Add +u/-u switches to force UTF-8 on/off.  The default
+   behavior depends upon the locale.
+8. src/sysdep.c: In most_getkey, if SLang_getkey returns an error,
+   then just exit.
+9. src/search.c: Added `#undef SLANG_REGEXP' and `#undef
+   HAVE_V8_REGCOMP' until the regexp searches are rewritten.
+10. src/edit.c: Filenames are quoted before being passed to the shell
+    for editing.
+11. src/file.c: Filenames are quoted before being passed to the unzip
+    program.
+12. src/sysdep.c: Check the process group id of the terminal and
+    if it does not match that of most, then exit.
+13. src/keym.c: Added "find_next_other_dir" function and bound it to N.
+14. src/most.c: New commandline switch: "-d".  This switch disables
+    the display of the \ character used to denote a wrapped line.
+15. src/line.c: Added support for embedded ansi-color escape
+    sequences, e.g., `ls --color | most`
+16. src/window.c: Added an error hook to prevent slang from writing to
+    stderr.
+17. src/line.c: An ascii character+combining character was not being
+    handled.
+
+Changes since 4.10.1
+1. src/window.c:most_read_from_minibuffer: An variable was not being
+   initialized. (Kevin Oberman, oberman at es, net).
+2. configure: mmap is enabled by default.  Use the --disable-mmap
+   configure option of you do not want it.
+
+Changes since 4.10.0
+1. src/most.h: Prototype for SLang_set_error inconsistent with the
+   function in most.c.
+2. src/most.h: If compiled against slang2 without an snprintf
+   function, use _pSLsnprintf.
+
+Changes since 4.9.5
+0. src/*.c: Various changes to support slang 2.  Version bumped to
+   4.10.0.  UTF-8 support not yet available.
+1. src/keym.c: Ignore mouse events under DOS/Windows (Gisle Vanem,
+   giva at bgnett, no).
+
+Changes since 4.9.4
+1. src/line.c: A "length" variable was declared as unsigned char
+   instead of unsigned int, causing a SEGV for columns larger than 255.
+2. src/file.c: fixed a buffer overflow caused by a long file name on
+   the command line.
+
+Changes since 4.9.3
+
+1. src/buffer.c: SLtt_Screen_Rows and SLtt_Screen_Cols were swapped
+   causing a file to be improperly displayed in wrap mode.  Adrian P.
+   van Bloois (adrian at accu.uu.nlhas) has my thanks for find this bug.
+2. src/most.c: when run without arguments, S-Lang library version also
+   printed.
+
+Changes since 4.9.2
+
+1. src/keym.c: added support for \xE0 type arrow keys (Win9X).
+2. src/file.c: When resyncing mmaped buffer, make sure to preserve the
+   current line number.
+3. src/sysdep.c: SLang_getkey_intr_hook is unix
+   specific and should not be used on VMS.
+4. src/file.c: Make arrow-keys for next_file_cmd work on win32 systems.
+5. src/file.h: be sure to quote filename argument (Mako Hill
+   <mako@debian.org>)
+6. src/file.c: added support for bzip2 files
+7. src/*.c: replace calls to sprintf with _SLsnprintf (Steve Kemp
+   <skx@tardis.ed.ac.uk>).
+
+Changes since 4.9.1
+0. Added support for using mmap to read files.  Use configure
+   --enable-mmap to enable this experimental feature.
+1. Wrapping bug fixed.  Also some optimizations were made to speed up
+   the display of wrapped files.
+2. File default.rc renamed to most.rc.
+3. A^H_ interpreted as underline.  Previously, _^HA was recognized.
+4. Jerome Lauret <JLAURET@mail.chem.sunysb.edu> provided most.hlp, as
+   well as a few VMS patches.
+5. src/Makefile.in: patch to make most's Makefile respect DESTDIR as
+   well as removing the hardcoded use of $(prefix)/etc for the
+   location of most's config file. <brad@comstyle.com>
+6. src/line.c: some simplifications and cleanups designed to avoid
+   nasty problems with extremely long lines.
+
+Changes since 4.9.0
+1. MOST_SWITCHES env variable can now contain extended switches.
+2. If most is reading from stdin, it will reinit the terminal when it
+   encounters an EOF on stdin.  This is to work around a problem under
+   linux where for some reason, some other process resets the terminal.
+Changes since 4.8.1
+1. Apparantly, the binary flag +b is not valid with POSIX popen.
+2. Screen resize code modified so that most works in a SunOS cmdtool.
+3. Color support added.  Use `most -C' to disable.
+4. Ported to Mingw32 (GNU C)
+
+Changes since 4.7
+1. Added tail -f type mode.  Use F to activate.
+2. OS/2 port provided by j.burnell@irl.cri.nz (John Burnell).
+3. Left/Right arrow scroll 1 column.  Use <, > to scroll in larger
+   chunks.
+
+Changes since 4.6
+0. Various cleanups and other improvements
+1. Binary mode displays byte offset
+2. Ported to DJGPP
+
+Changes since 4.5
+1. Many changes to enable MOST use the S-Lang screen management routines.
+
+Features in 4.5
+1. More cleanup/bug fixes
+2. Regular expression searches 
+3. Automatic detection of compressed files.
+
+Features in 4.41:
+1. Modified to read raw directry file in BINARY mode.
+
+New features in MOST 4.4:
+
+1. User definable keymaps
+2. ISO Latin1 8 bit clean
+3. Edit and recall previous search strings
+4. Much friendlier, lots of messages and help
+5. VMS ``Gopher ready''
+6. Cleaned up alot and small bugs fixed
+7. Most now re-reads the file after editing.
+
+New Features since MOST version 3.x (Sept 25, 1994)
+
+1.  Terminfo/termcap under Unix supported
+2.  -1 flag specifies terminal is a VT100 and not anything better, e.g.,
+     VT102. (VMS only)
+3.  MOST will only read in what it has to.  This means it starts up alot
+    faster on large files.
+4.  Cleaned up alot.
+
+John E. Davis
+davis@space.mit.edu
+
+}}}

vendor/most-5.1.0/doc/lesskeys.rc

@@ -0,0 +1,59 @@
+% This is an example configuration file that provides a `less' emulation 
+% for MOST.
+%
+% The format is simple: 
+%       setkey <function-name> <key-name>
+%       unsetkey <key-name>
+%       color <object-name> <fg> <bg>
+%
+% Here <key-name> must be enclosed in double quotes.  '^' represents Ctrl.
+% The function name is not in double quotes.
+% 
+%
+% When MOST starts up, it looks for a keymap file given by the environment 
+% variable MOST_INITFILE.  If that environment variable does not exist, 
+% MOST will look in the users HOME directory for .mostrc on Unix systems
+% and MOST.RC on VMS systems.
+%
+% The file `most.rc' contains a listing of the default MOST keybindings.
+
+% Color settings
+
+color normal lightgray black
+color status yellow blue
+color underline brightgreen black
+color overstrike brightred black
+
+% Keybindings
+
+unsetkey "^K"
+setkey up "^K"
+
+unsetkey ":"
+setkey next_file ":n"
+setkey find_file ":e"
+setkey next_file ":p"
+setkey toggle_options ":o"
+setkey toggle_case ":c"
+setkey delete_file ":d"
+setkey exit ":q"
+
+setkey down "e"
+setkey down "E"
+setkey down "j"
+setkey down "^N"
+setkey up "y"
+setkey up "^Y"
+setkey up "k"
+setkey up "^P"
+setkey page_down "f"
+setkey page_down "^F"
+setkey page_up "b"
+setkey page_up "^B"
+setkey other_window "z"
+setkey other_window "w"
+setkey search_backward "?"
+setkey bob "p"
+setkey goto_mark "'"
+setkey find_file "E"
+setkey edit "v"

vendor/most-5.1.0/doc/most-fun.txt

@@ -0,0 +1,45 @@
+The following functions may be used in custom keymaps:
+
+edit
+suspend
+toggle_lock
+next_file
+toggle_options
+extended_key
+toggle_case
+delete_file
+bob
+delete_window
+digit_arg
+down
+edt_backward
+edt_find
+edt_find_next
+edt_forward
+edt_line
+edt_page
+eob
+exit
+find_file
+find_next
+goto_line
+goto_mark
+goto_percent
+help
+one_window
+other_window
+page_down
+page_left
+page_right
+column_right
+column_left
+page_up
+redraw
+search_backward
+search_forward
+set_mark
+show_time
+tail_mode
+toggle_width
+two_windows
+up

vendor/most-5.1.0/doc/most.1

@@ -0,0 +1,432 @@
+.\" This manpage has been automatically generated by docbook2man 
+.\" from a DocBook document.  This tool can be found at:
+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> 
+.\" Please send any bug reports, improvements, comments, patches, 
+.\" etc. to Steve Cheng <steve@ggi-project.org>.
+.TH "MOST" "1" "17 February 2019" "" ""
+
+.SH NAME
+most \- browse or page through a text file
+.SH SYNOPSIS
+
+\fBmost\fR [ \fB-1\fR ] [ \fB-b\fR ] [ \fB-C\fR ] [ \fB-c\fR ] [ \fB-d\fR ] [ \fB-M\fR ] [ \fB-r\fR ] [ \fB-s\fR ] [ \fB-t\fR ] [ \fB-u\fR ] [ \fB-v\fR ] [ \fB-w\fR ] [ \fB-z\fR ] [ \fB+/\fIstring\fB\fR ] [ \fB+\fIline-number\fB\fR ] [ \fB+d\fR ] [ \fB+s\fR ] [ \fB+u\fR ] [ \fB\fIfile...\fB\fR ]
+
+.SH "DESCRIPTION"
+.PP
+\fBmost\fR is a paging program that displays, one windowful at a time,
+the contents of a file on a terminal.  It pauses after each
+windowful and prints on the window status line the screen the file
+name, current line number, and the percentage of the file so far
+displayed.
+.PP
+Unlike other paging programs, \fBmost\fR is capable of displaying an
+arbitrary number of windows as long as each window occupies at least
+two screen lines.  Each window may contain the same file or a
+different file.  In addition, each window has its own mode.  For
+example, one window may display a file with its lines wrapped while
+another may be truncating the lines. Windows may be `locked'
+together in the sense that if one of the locked windows scrolls, all
+locked windows will scroll.  \fBmost\fR is also capable of ignoring lines
+that are indented beyond a user specified value.  This is useful
+when viewing computer programs to pick out gross features of the
+code.  See the `:o' command for a description of this feature.
+.PP
+In addition to displaying ordinary text files, \fBmost\fR can also
+display binary files as well as files with arbitrary ascii
+characters.  When a file is read into a buffer, \fBmost\fR examines the
+first 32 bytes of the file to determine if the file is a binary file
+and then switches to the appropriate mode.  However, this feature
+may be disabled with the -k option.  See the description of the -b,
+-k, -v, and -t options for further details.
+.PP
+Text files may contain combinations of underscore and backspace
+characters causing a printer to underline or overstrike.  When \fBmost\fR
+recognizes this, it inserts the appropriate escape sequences to
+achieve the desired effect.  In addition, some files cause the
+printer to overstrike some characters by embedding carriage return
+characters in the middle of a line.  When this occurs, \fBmost\fR displays
+the overstruck character with a bold attribute.  This feature
+facilitates the reading of UNIX man pages or a document produced by
+runoff.  In particular, viewing this document with \fBmost\fR should
+illustrate this behavior provided that the underline characters
+have not been stripped.  This may be turned off with the -v option.
+.PP
+By default, lines with more characters than the terminal width are
+not wrapped but are instead truncated. When truncation occurs, this
+is indicated by a `$' in the far right column of the terminal
+screen.  The RIGHT and LEFT arrow keys may be used to view lines
+which extend past the margins of the screen.  The -w option may be
+used to override this feature.  When a window is wrapped, the
+character `\\' will appear at the right edge of the window.
+.PP
+Commands are listed below.
+.SH "OPTIONS"
+.TP
+\fB-1\fR
+VT100 mode.  This is meaningful only
+on VMS systems.  This option should be used if the terminal is
+strictly a VT100.  This implies that the terminal does not have the
+ability to delete and insert multiple lines.  VT102s and above have
+this ability. 
+.TP
+\fB-b\fR
+Binary mode.  Use this switch when
+you want to view files containing 8 bit characters.  \fBmost\fR will
+display the file 16 bytes per line in hexadecimal notation. A
+typical line looks like:
+
+.nf
+   01000000 40001575 9C23A020 4000168D     ....@..u.#. @...
+.fi
+
+When used with the -v option, the same line looks like:
+
+.nf
+   ^A^@^@^@  @^@^U u 9C #A0    @^@^V8D     ....@..u.#. @...
+.fi
+.TP
+\fB-C\fR
+Disable color support. 
+.TP
+\fB-c\fR
+Make searches case-sensitive 
+.TP
+\fB-d\fR
+Omit the backslash mark used to denote a wrapped line. 
+.TP
+\fB-M\fR
+Disable the use of mmap. 
+.TP
+\fB-r\fR
+Default to using regexp searches 
+.TP
+\fB-s\fR
+Squeeze-mode.  Replace multiple blank
+lines with a single blank line. 
+.TP
+\fB-t\fR
+Display tabs as ^I.  If this option
+is immediately followed by an integer, the integer sets the tab
+width, e.g., -t4 
+.TP
+\fB-u\fR
+Disable UTF-8 mode even if the
+locale dictates it 
+.TP
+\fB+u\fR
+Force UTF-8 mode.  By default \fBmost\fR
+will use the current locale to determine if UTF-8 mode should be
+used.  The +u and -u switches allow the behavior to be overridden 
+.TP
+\fB-v\fR
+Display control characters as in
+`^A' for control A.  Normally \fBmost\fR does not interpret control
+characters. 
+.TP
+\fB-w\fR
+Wrap lines 
+.TP
+\fB-z\fR
+Disable gunzip-on-the-fly 
+.TP
+\fB+/\fIstring\fB\fR
+Start up at the
+line containing the first occurrence of string 
+.TP
+\fB+\fIlineno\fB\fR
+Start up at the
+specified line-number 
+.TP
+\fB+d\fR
+This switch should only be used if
+you want the option to delete a file while viewing it.  This makes
+it easier to clean unwanted files out of a directory. The file is
+deleted with the interactive key sequence `:D' and then confirming
+with `y'. 
+.TP
+\fB+s\fR
+Secure Mode-- no edit, cd, shell,
+and reading files not already listed on the command line. 
+.SH "COMMAND USAGE"
+.PP
+The commands take effect immediately; it is not necessary to type a
+carriage return.  In the following commands, \fBi\fR is a numerical
+argument (1 by default).
+.TP
+\fBSPACE, CTRL-D, NEXT_SCREEN\fR
+Display another windowful, or jump \fBi\fR windowfuls if \fBi\fR is specified. 
+.TP
+\fBRETURN, DOWN_ARROW, V, CTRL-N\fR
+Display another line, or \fBi\fR more lines, if specified. 
+.TP
+\fBUP_ARROW, ^, CTRL-P\fR
+Display previous line, or \fBi\fR previous
+lines, if specified. 
+.TP
+\fBT, ESCAPE<\fR
+Move to top of buffer. 
+.TP
+\fBB, ESCAPE>\fR
+Move to bottom of buffer. 
+.TP
+\fBRIGHT_ARROW, TAB, >\fR
+Scroll window left 60\fBi\fR columns to view
+lines that are beyond the right margin of the window. 
+.TP
+\fBLEFT_ARROW, CTRL-B, <\fR
+Scroll window right 60\fBi\fR columns to
+view lines that are beyond the left margin of the window. 
+.TP
+\fBU, CTRL-U, DELETE, PREV_SCREEN\fR
+Skip back \fBi\fR windowfuls and
+then print a windowful. 
+.TP
+\fBR, CTRL-R\fR
+Redraw the window. 
+.TP
+\fBJ, G\fR
+If  \fBi\fR  is  not  specified, then prompt for a line
+number then jump to that line otherwise just jump to line i. 
+.TP
+\fB%\fR
+If \fBi\fR is not specified, then prompt for a percent number
+then jump to that percent of the file otherwise just jump to \fBi\fR percent
+of the file. 
+.TP
+\fBW, w\fR
+If  the  current  screen  width  is 80, make it 132 and
+vice-versa.  For other values, this command is ignored. 
+.TP
+\fBQ, CTRL-X CTRL-C, CTRL-K E\fR
+Exit from \fBmost\fR\&.  On VMS, ^Z also
+exits. 
+.TP
+\fBh, CTRL-H, HELP, PF2\fR
+Help.  Give a description of all the
+\fBmost\fR commands.  The \fBmost\fR environment variable MOST_HELP must be set
+for this to be meaningful. 
+.TP
+\fBf, /, CTRL-F, FIND, GOLD PF3\fR
+Prompt  for  a  string  and
+search forward from the current line for ith distinct line containing
+the string.  CTRL-G aborts. 
+.TP
+\fB?\fR
+Prompt for a string and search backward for the ith
+distinct line containing the string.  CTRL-G aborts. 
+.TP
+\fBn\fR
+Search for the next \fBi\fR lines containing an occurrence of
+the last search string in the direction of the previous search. 
+.TP
+\fBm, SELECT, CTRL-@, CTRL-K M, PERIOD\fR
+Set a mark on the
+current line for later reference. 
+.TP
+\fBINSERT_HERE, CTRL-X CTRL-X, COMMA, CTRL-K RETURN, GOLD PERIOD\fR
+Set a mark on the current line but return to previous mark.
+This allows the user to toggle back and forth between two positions in
+the file. 
+.TP
+\fBl, L\fR
+Toggle locking for this window.  The window is locked
+if there is a `*' at the left edge of the status line.  Windows locked
+together, scroll together. 
+.TP
+\fBCTRL-X 2, CTRL-W 2, GOLD X\fR
+Split this window in half. 
+.TP
+\fBCTRL-X o, CTRL-W o, o, GOLDUP, GOLDDOWN\fR
+Move to other window. 
+.TP
+\fBCTRL-X 0, CTRL-W 0, GOLD V\fR
+Delete this window. 
+.TP
+\fBCTRL-X 1, CTRL-W 1, GOLD O\fR
+Delete all other windows, leaving
+only one window. 
+.TP
+\fBE, e\fR
+Edit this file. 
+.TP
+\fB$, ESC $\fR
+This is system dependent.  On VMS, this causes \fBmost\fR
+to spawn a subprocess.  When the user exits the process, \fBmost\fR is
+resumed.  On UNIX systems, \fBmost\fR simply suspends itself. 
+.TP
+\fB:n\fR
+Skip to the next filename given in the command line.  Use
+the arrow keys to scroll forward or backward through the file list.
+`Q' quits \fBmost\fR and any other key selects the given file. 
+.TP
+\fB:c\fR
+Toggle case sensitive search. 
+.TP
+\fB:D\fR
+Delete current file.  This command is only meaningful
+with the +d switch. 
+.TP
+\fB:o, :O\fR
+Toggle various options.  With this key sequence, \fBmost\fR
+displays a prompt asking the user to hit one of: bdtvw.  The `b', `t',
+`v', and `w' options have the same meaning as the command line
+switches.  For example, the `w' option will toggle wrapping on and off
+for the current window.
+
+The `d' option must be used with a prefix integer i.  All lines
+indented beyond \fBi\fR columns will not be displayed.  For example,
+consider the fragment: 
+.TP
+\fB\fR
+
+.nf
+   int main(int argc, char **argv)
+   {
+     int i;
+     for (i = 0; i < argc, i++)
+       {
+         fprintf(stdout,"%i: %s\\n",i,argv[i]);
+       }
+     return 0;
+   }
+.fi
+The key sequence `1:od' will cause \fBmost\fR to display the file ignoring
+all lines indented beyond the first column.  So for the example above,
+\fBmost\fR would display:
+
+.nf
+   int main(int argc, char **argv)...
+   }
+.fi
+where the `...' indicates lines that follow are not displayed.
+.SH "HINTS"
+.PP
+CTRL-G aborts the commands requiring the user to type something in
+at a prompt.  The back-quote key has a special meaning here.  It is
+used to quote certain characters.  This is useful when search for
+the occurrence of a string with a control character or a string at
+the beginning of a line.  In the latter case, to find the occurrence
+of `The' at the beginning of a line, enter `^JThe where ` quotes the
+CTRL-J.
+.SH "ENVIRONMENT"
+.PP
+\fBmost\fR uses the following environment variables:
+.TP
+\fBMOST_SWITCHES\fR
+This  variable  sets  commonly used switches.
+For example, some people prefer to use \fBmost\fR with the -s option so that
+excess blank lines are not displayed.  On VMS this is normally done
+done in the login.com through the line: 
+.TP
+\fB\fR
+
+.nf
+   $ define MOST_SWITCHES "-s"
+.fi
+.TP
+\fBMOST_EDITOR, SLANG_EDITOR\fR
+Either  of  these environment
+variables specify an editor for \fBmost\fR to invoke to edit a file. The
+value can contain %s and %d formatting descriptors that represent the
+file name and line number, respectively.  For example, if JED is
+your editor, then set MOST_EDITOR to 'jed %s -g %d'. 
+.TP
+\fBMOST_HELP\fR
+This variable may be used to specify an alternate
+help file. 
+.TP
+\fBMOST_INITFILE\fR
+Set this variable to specify the
+initialization file to load during startup.  The default action is to
+load the system configuration file and then a personal configuration
+file called .mostrc on Unix, and most.rc on other systems. 
+.SH "CONFIGURATION FILE SYNTAX"
+.PP
+When \fBmost\fR starts up, it tries to read a system configuration file and
+then a personal configuration file. These files may be used to specify
+key-bindings and colors.
+.PP
+To bind a key to a particular function use the syntax:
+
+.nf
+    setkey function-name key-sequence
+.fi
+.PP
+The setkey command requires two arguments.  The function-name argument
+specifies the function that is to be executed as a response to the
+keys specified by the key-sequence argument are pressed.  For example,
+
+.nf
+    setkey   "up"     "^P"
+.fi
+.PP
+indicates that when Ctrl-P is pressed then the function up is to be executed.
+.PP
+Sometimes, it is necessary to first unbind a key-sequence before
+rebinding it in order via the unsetkey function:
+
+.nf
+    unsetkey "^F"
+.fi
+.PP
+Colors may be defined through the use of the color keyword in the the
+configuration file using the syntax:
+
+.nf
+    color OBJECT-NAME FOREGROUND-COLOR BACKGROUND-COLOR
+.fi
+.PP
+Here, OBJECT-NAME can be any one of the following items:
+
+.nf
+     status           -- the status line
+     underline        -- underlined text
+     overstrike       -- overstruck text
+     normal           -- anything else
+.fi
+.PP
+See the sample configuration files for more information.
+.SH "BUGS"
+.PP
+Almost all of the known bugs or limitations of \fBmost\fR are due to a
+desire to read and interpret control characters in files.  One
+problem concerns the use of backspace characters to underscore or
+overstrike other characters.  \fBmost\fR makes an attempt to use terminal
+escape sequences to simulate this behavior.  One side effect is the
+one does not always get what one expects when scrolling right and left
+through a file.  When in doubt, use the -v and -b options of \fBmost\fR\&.
+.PP
+The regular-expression searches may fail to find strings that involve
+backspace/underscore used for highlighting.  The regular-expression
+syntax is described in the S-Lang Library documentation.
+.SH "AUTHOR"
+.PP
+John E. Davis <jed@jedsoft.org>
+.SH "ACKNOWLEDGEMENTS"
+.PP
+Over the years, many people have contributed to \fBmost\fR in one way or
+another, e.g., via code patches, bug-fixes, comments, or criticisms.
+I am particularly grateful to the very early adopters of the program
+who took a chance with a fledgling software project headed by someone
+learning the underlying language.  These include:
+.PP
+Mats Akerberg, Henk D. Davids, Rex O. Livingston, and Mark Pizzolato
+contributed to the early VMS versions of \fBmost\fR\&.  In particular, Mark
+worked on it to get it ready for DECUS.
+.PP
+Foteos Macrides adapted \fBmost\fR for use in cswing and gopher.  A few
+features of the present version of \fBmost\fR was inspired from his work.
+.PP
+I am grateful to Robert Mills for re-writing the search routines to
+use regular expressions.
+.PP
+Sven Oliver Moll came up with the idea of automatic detection of
+zipped files.
+.PP
+I would also like to thank Shinichi Hama for his valuable criticisms
+of \fBmost\fR\&.
+.PP
+Javier Kohen was instrumental in the support for UTF-8.
+.PP
+Thanks to David W. Sanderson for adapting the early documentation to
+nroff man page source format.

vendor/most-5.1.0/doc/most.hlp

@@ -0,0 +1,347 @@
+1 MOST
+ browse or page through a text file
+
+2 Synopsis
+  most [-Cbstvwz] [+lineno] [+c] [+d] [+/string] [filename...]
+
+2 Description
+ most  is  a paging program that displays, one windowful at a time, the
+ contents of a file on a terminal.  It pauses after each windowful  and
+ prints  on  the  window  status line the screen the file name, current
+ line number, and the percentage of the file so far displayed.
+
+ Unlike  other  paging  programs,  most  is  capable  of  displaying an
+ arbitrary number of windows as long as each window occupies  at  least
+ two  screen  lines.   Each  window  may  contain  the  same  file or a
+ different file.  In addition, each  window  has  its  own  mode.   For
+ example,  one  window  may display a file with its lines wrapped while
+ another may be truncating the lines.  Windows may be `locked' together
+ in  the  sense  that  if one of the locked windows scrolls, all locked
+ windows will scroll.  most is also capable of ignoring lines that  are
+ indented  beyond  a  user specified value. This is useful when viewing
+ computer programs to pick out gross features of  the  code.   See  the
+ `:o' command for a description of this feature.
+
+ In  addition  to displaying ordinary text files, most can also display
+ binary files as well as files with arbitrary ascii characters.  When a
+ file  is  read  into a buffer, most examines the first 32 bytes of the
+ file to determine if the file is a binary file and  then  switches  to
+ the  appropriate mode.  However, this feature may be disabled with the
+ -k option.  See the description of the -b, -k, -v, and -t options  for
+ further details.
+
+ Text  files  may  contain  combinations  of  underscore  and backspace
+ characters causing a printer to underline or  overstrike.   When  most
+ recognizes  this,  it  inserts  the  appropriate  escape  sequences to
+ achieve the desired effect. In addition, some files cause the  printer
+ to  overstrike some characters by embedding carriage return characters
+ in the middle  of  a  line.   When  this  occurs,  most  displays  the
+ overstruck  character with a bold attribute.  This feature facilitates
+ the reading of UNIX man pages or a document produced  by  runoff.   In
+ particular,  viewing  this  document  with most should illustrate this
+ behavior  provided  that  the  underline  characters  have  not   been
+ stripped.  This may be turned off with the -v option.
+
+ By default, lines with more characters than the terminal width are not
+ wrapped but are instead truncated.  When truncation  occurs,  this  is
+ indicated  by  a  `$' in the far right column of the terminal screen.
+ The RIGHT and LEFT arrow keys may be used to view lines  which  extend
+ past the margins of the screen.  The -w option may be used to override
+ this feature.  When a window is wrapped, the character `\' will appear
+ at the right edge of the window.
+
+  Commands are listed below.
+
+2 Options
+
+  -1   VT100 mode.  This is meaningful only on VMS systems.  This option
+       should be used if the terminal is strictly a VT100. This  implies
+       that  the terminal does not have the ability to delete and insert
+       multiple lines.  VT102s and above have this ability.
+
+  -b   Binary  mode.   Use  this  switch  when  you  want  to view files
+       containing 8 bit characters.  most will display the file 16 bytes
+       per line in hexidecimal notation.  A typical line looks like:
+
+
+            01000000 40001575 9C23A020 4000168D     ....@..u.#. @...
+
+       When used with the -v option, the same line looks like:
+
+
+            ^A^@^@^@  @^@^U u 9C #A0    @^@^V8D     ....@..u.#. @...
+
+  -k   `Kanji' option.  Ordinarily, most will go into binary mode if the
+       file consists of non-ascii characters.  Sometimes this feature is
+       not  desirable since some terminals have a special interpretation
+       for eight bit characters.  The -k option turns off the  automatic
+       sensing.
+
+  -C   Disable color support.
+
+  -s   Squeeze.  Replace multiple blank lines with a single blank line.
+
+  -z   option turns off gunzip-on-the-fly.
+
+  -v   Display  control  characters  as in `^A' for control A.  Normally
+       most does not interpret control characters.
+
+  -t   Display  tabs  as `^I'.  This option is meaningful only when used
+       with the -v option.  +lineno Start up at lineno.
+
+  +c   Make search case sensitive.  By default, they are not.
+
+  +d   This  switch should only be used if you want the option to delete
+       a file while viewing it.  This makes it easier to clean  unwanted
+       files  out  of  a  directory.   The  file  is  deleted  with  the
+       interactive key sequence `:D' and then confirming with `y'.
+
+  +/string
+       Start up at the line containing the first occurrence of string.
+
+2 Command_usage
+ The  commands  take  effect immediately; it is not necessary to type a
+ carriage return.
+
+  In the following commands, i is a numerical argument (1 by default).
+
+  SPACE, CTRL-D, NEXT_SCREEN
+       Display another windowful, or jump i windowfuls if i is specified.
+
+  RETURN, DOWN_ARROW, V, CTRL-N
+       Display another line, or i more lines, if specified.
+
+  UP_ARROW, ^, CTRL-P
+       Display previous line, or i previous lines, if specified.
+
+  T, ESCAPE<
+       Move to top of buffer.
+
+  B, ESCAPE>
+       Move to bottom of buffer.
+
+  RIGHT_ARROW, TAB, >
+       Scroll  window left 60i columns to view lines that are beyond the
+       right margin of the window.
+
+  LEFT_ARROW, CTRL-B, <
+       Scroll window right 60i columns to view lines that are beyond the
+       left margin of the window.
+
+  U, CTRL-U, DELETE, PREV_SCREEN
+       Skip back i windowfuls and then print a windowful.
+
+  R, CTRL-R
+       Redraw the window.
+
+  J, G If i is not specified, then prompt for a line number then jump to
+       that line otherwise just jump to line i.
+
+  %    If i is not specified, then prompt for a percent number then jump
+       to that percent of the file otherwise just jump to i  percent  of
+       the file.
+
+  W, w If  the  current screen width is 80, make it 132 and vice-versa.
+       For other values, this command is ignored.
+
+  Q, CTRL-X CTRL-C, CTRL-K E
+       Exit from most.  On VMS, ^Z also exits.
+
+  h, CTRL-H, HELP,
+       Help.   Give  a  description  of all the most commands.  The most
+       environment variable  MOST_HELP  must  be  set  for  this  to  be
+       meaningful.
+
+  f, /, CTRL-F, FIND, GOLD PF3
+       Prompt  for a string and search forward from the current line for
+       ith distinct line containing the string.  CTRL-G aborts.
+
+  ?    Prompt for a string and search backward for the ith distinct line
+       containing the string.  CTRL-G aborts.
+
+  n    Search  for the next i lines containing an occurrence of the last
+       search string in the direction of the previous search.
+
+  m, SELECT, CTRL-@, CTRL-K M, PERIOD
+       Set a mark on the current line for later reference.
+
+  INSERT_HERE, CTRL-X CTRL-X, COMMA, CTRL-K RETURN, GOLD PERIOD
+       Set a mark on the current line but return to previous mark.  This
+       allows the user to toggle back and forth between two positions in
+       the file.
+
+  l, L Toggle locking for this window.  The window is locked if there is
+       a `*' at the left  edge  of  the  status  line.   Windows  locked
+       together, scroll together.
+
+  CTRL-X 2, CTRL-W 2, GOLD X
+       Split this window in half.
+
+  CTRL-X o, CTRL-W o, o,
+       Move to other window.
+
+  CTRL-X 0, CTRL-W 0, GOLD V
+       Delete this window.
+
+  CTRL-X 1, CTRL-W 1, GOLD O
+       Delete all other windows, leaving only one window.
+
+  E, e Edit this file.
+
+  $, ESC $
+       This  is  system  dependent.  On VMS, this causes most to spawn a
+       subprocess.  When the user exits the process, most is  resumed.
+       On UNIX systems, most simply suspends itself.
+
+  :n   Skip  to  the  next  filename given in the command line.  Use the
+       arrow keys to scroll forward or backward through the file list.
+       `Q' quits most and any other key selects the given file.
+
+  :c   Toggle case sensitive search.
+
+  :D   Delete current file.  This command is only meaningful with the +d
+       switch.
+
+  :o, :O
+       Toggle  various options.  With this key sequence, most displays a
+       prompt asking the user to hit one of:  bdtvw.  The `b', `t', `v',
+       and  `w'  options  have  the  same  meaning  as  the command line
+       switches.  For example, the `w' option will  toggle  wrapping  on
+       and off for the current window.
+
+       The  `d'  option must be used with a prefix integer i.  All lines
+       indented beyond i columns will not be  displayed.   For  example,
+       consider the fragment:
+
+
+            int main(int argc, char **argv)
+            {
+                    int i;
+
+                    for (i = 0; i < argc, i++)
+                    {
+                            fprintf(stdout,"%i: %s\n",i,argv[i]);
+                    }
+                    return 0;
+            }
+
+       The  key  sequence  `1:od'  will  cause  most to display the file
+       ignoring all lines indented beyond the first column.  So for  the
+       example above, most would display:
+
+
+            int main(int argc, char **argv)...
+            }
+
+       where the `...' indicates lines follow are not displayed.
+
+2 Hints
+ CTRL-G  aborts the commands requiring the user to type something in at
+ a prompt.  The backquote key has a special meaning here.  It  is  used
+ to  quote  certain  characters.   This  is  useful when search for the
+ occurrence of a string with a control character or  a  string  at  the
+ beginning  of  a  line.  In the latter case, to find the occurrence of
+ `The' at the beginning of a line, enter  `^JThe  where  `  quotes  the
+ CTRL-J.
+
+2 Environment
+  most uses the following environment variables:
+
+  MOST_SWITCHES
+       This  variable  sets  commonly  used switches.  For example, some
+       people prefer to use most with the -s option so that excess blank
+       lines  are  not  displayed.  On VMS this is normally done done in
+       the login.com through the line:
+
+            $ define MOST_SWITCHES "-s"
+
+  MOST_EDITOR, SLANG_EDITOR
+       Either  of these environment variables specify an editor for most
+       to invoke to edit a file.   The  value  can  contain  %s  and  %d
+       formatting  descriptors  that  represent  the  file name and line
+       number, respectively.  For example, if JED is your  editor,  then
+       set MOST_EDITOR to 'jed %s -g %d'.
+
+  MOST_HELP
+       This variable may be used to specify an alternate help file.
+
+  MOST_INITFILE
+       Set  this  variable  to  specify  the initialization file to load
+       during startup.   The  default  action  is  to  load  the  system
+       configuration  file and then a personal configuration file called
+       .mostrc on Unix, and most.rc on other systems.
+
+2 Configuration_file_syntax
+ When  most  starts up, it tries to read a system confiuration file and
+ then a personal configuration  file.   These  files  may  be  used  to
+ specify keybind ings and colors.
+
+ To bind a key to a particular function use the syntax:
+
+ setkey function-name key-sequence
+
+ The setkey command requires two arguments.  The function-name argument
+ specifies the function that is to be executed as  a  response  to  the
+ keys specified by the key-sequence argument are pressed.  For example,
+
+        setkey   "up"     "^P"
+
+ indicates  that  when  Ctrl-P is pressed then the function up is to be
+ executed.
+
+ Sometimes,  it  is  necessary  to  first  unbind a key-sequence before
+ rebinding it in order via the unsetkey function:
+
+         unsetkey "^F"
+
+ Colors  may be defined through the use of the color keyword in the the
+ configuration file using the syntax:
+
+ color OBJECT-NAME FOREGROUND-COLOR BACKGROUND-COLOR
+
+ Here, OBJECT-NAME can be any one of the following items:
+
+      status           -- the status line
+      underline        -- underlined text
+      overstrike       -- overstriked text
+      normal           -- anything else
+
+ See the sample configuration files for more information.
+
+2 Bugs
+ Almost  all  of  the  known  bugs  or limitations of most are due to a
+ desire to read and interpret control characters in files.  One problem
+ concerns  the  use of backspace characters to underscore or overstrike
+ other characters.  most  makes  an  attempt  to  use  terminal  escape
+ sequences  to simulate this behavior.  One side effect is the one does
+ not always get what one expects when scrolling right and left  through
+ a file.  When in doubt, use the -v and -b options of most.
+
+2 Author
+  John E. Davis
+  davis@space.mit.edu
+
+2 Acknowledgements
+ I  would  like  to  thank  the users of most for valuable comments and
+ criticisms.  I would especially like to thank  those  individuals  who
+ have contributed code to most.
+
+ Mats Akerberg, Henk D.  Davids, Rex O.  Livingston, and Mark Pizzolato
+ contributed to the early VMS versions of most.   In  particular,  Mark
+ worked on it to get it ready for DECUS.
+
+ Foteos Macrides <MACRIDES@SCI.WFEB.EDU> adapted most for use in cswing
+ and gopher.  A few  features  of  the  present  version  of  most  was
+ inspired from his work.
+
+ I  am  grateful to Robert Mills <robert@jna.com.au> for re-writing the
+ search routines to use regular expressions.
+
+ Sven Oliver Moll <smol0075@rz.uni-hildesheim.de> came up with the idea
+ of automatic detection of zipped files.
+
+ I  would  also like to thank Shinichi Hama for his valuable criticisms
+ of most.
+
+ Thanks  to  David  W.   Sanderson  (dws@cs.wisc.edu)  for adapting the
+ documentation to nroff man page source format.

vendor/most-5.1.0/doc/most.rc

@@ -0,0 +1,129 @@
+% Color settings
+
+color normal lightgray black
+color status yellow blue
+color underline brightgreen black
+color overstrike brightred black
+
+% Keybindings
+
+%setkey digit_arg		dig
+%setkey digit_arg		esc dig
+%setkey digit_arg		gold dig
+%setkey column_left	< Not Set >
+%setkey column_right	< Not Set >
+setkey page_down		" "
+setkey suspend			"$"
+setkey goto_percent		"%"
+setkey goto_mark		","
+setkey search_forward		"/"
+setkey extended_key		":"
+setkey page_left		"<"
+setkey page_right		">"
+setkey search_backward		"?"
+setkey eob			"B"
+setkey page_down		"D"
+setkey edit			"E"
+setkey search_forward		"F"
+setkey goto_line		"G"
+setkey help			"H"
+setkey goto_line		"J"
+setkey toggle_lock		"L"
+setkey set_mark			"M"
+setkey find_next		"N"
+setkey other_window		"O"
+setkey exit			"Q"
+setkey redraw			"R"
+setkey search_forward		"S"
+setkey bob			"T"
+setkey page_up 			"U"
+setkey down			"V"
+setkey toggle_width		"W"
+setkey exit			"X"
+setkey suspend			"\033$"
+setkey bob			"\033<"
+setkey eob			"\033>"
+setkey up			"\033OA"
+setkey down			"\033OB"
+setkey page_right		"\033OC"
+setkey page_left		"\033OD"
+setkey exit			"\033OPE"
+setkey one_window		"\033OPO"
+setkey exit			"\033OPQ"
+setkey suspend			"\033OPS"
+setkey delete_window		"\033OPV"
+setkey two_windows		"\033OPX"
+setkey edt_find			"\033OP\033OR"
+setkey goto_mark		"\033OP\033On"
+setkey eob			"\033OP\033Ot"
+setkey bob			"\033OP\033Ou"
+setkey other_window		"\033OP\033[A"
+setkey other_window		"\033OP\033[B"
+setkey page_right		"\033OP\033[C"
+setkey page_left		"\033OP\033[D"
+setkey help			"\033OQ"
+setkey edt_find_next		"\033OR"
+setkey set_mark			"\033On"
+setkey edt_line			"\033Op"
+setkey edt_forward		"\033Ot"
+setkey edt_backward		"\033Ou"
+setkey edt_page			"\033Ox"
+setkey page_up 			"\033V"
+setkey search_forward		"\033[1~"
+setkey goto_mark		"\033[2~"
+setkey help			"\033[28~"
+setkey set_mark			"\033[4~"
+setkey page_up    		"\033[5~"
+setkey page_down		"\033[6~"
+setkey up			"\033[A"
+setkey down			"\033[B"
+setkey page_right		"\033[C"
+setkey page_left		"\033[D"
+setkey page_right		"\t"
+setkey up			"^"
+setkey page_up 			"^?"
+setkey set_mark			"^@"
+setkey page_down		"^D"
+setkey search_forward		"^F"
+setkey help			"^H"
+setkey exit			"^KE"
+setkey find_file		"^KG"
+setkey set_mark			"^K^B"
+setkey goto_mark		"^K^J"
+setkey goto_mark		"^K^M"
+setkey redraw			"^L"
+setkey down			"^M"
+setkey down			"^N"
+setkey up			"^P"
+setkey redraw			"^R"
+setkey show_time		"^T"
+setkey page_up 			"^U"
+setkey page_down		"^V"
+setkey delete_window		"^W0"
+setkey one_window		"^W1"
+setkey two_windows		"^W2"
+setkey other_window		"^WO"
+setkey delete_window		"^X0"
+setkey one_window		"^X1"
+setkey two_windows		"^X2"
+setkey other_window		"^XO"
+setkey exit			"^X^C"
+setkey find_file		"^X^F"
+setkey suspend			"^Z"
+setkey eob			"b"
+setkey page_down		"d"
+setkey edit			"e"
+setkey search_forward		"f"
+setkey goto_line		"g"
+setkey goto_line		"j"
+setkey toggle_lock		"l"
+setkey set_mark			"m"
+setkey find_next		"n"
+setkey other_window		"o"
+setkey exit			"q"
+setkey redraw			"r"
+setkey search_forward		"s"
+setkey bob			"t"
+setkey down			"v"
+setkey toggle_width		"w"
+setkey exit			"x"

vendor/most-5.1.0/doc/most.txt

@@ -0,0 +1,421 @@
+                                  most
+
+Name
+
+   most -- browse or page through a text file
+
+Synopsis
+
+   most [-1] [-b] [-C] [-c] [-d] [-M] [-r] [-s] [-t] [-u] [-v]
+   [-w] [-z] [+/string] [+line-number] [+d] [+s] [+u] [file...]
+
+DESCRIPTION
+
+   most is a paging program that displays, one windowful at a
+   time, the contents of a file on a terminal. It pauses after
+   each windowful and prints on the window status line the screen
+   the file name, current line number, and the percentage of the
+   file so far displayed.
+
+   Unlike other paging programs, most is capable of displaying an
+   arbitrary number of windows as long as each window occupies at
+   least two screen lines. Each window may contain the same file
+   or a different file. In addition, each window has its own mode.
+   For example, one window may display a file with its lines
+   wrapped while another may be truncating the lines. Windows may
+   be `locked' together in the sense that if one of the locked
+   windows scrolls, all locked windows will scroll. most is also
+   capable of ignoring lines that are indented beyond a user
+   specified value. This is useful when viewing computer programs
+   to pick out gross features of the code. See the `:o' command
+   for a description of this feature.
+
+   In addition to displaying ordinary text files, most can also
+   display binary files as well as files with arbitrary ascii
+   characters. When a file is read into a buffer, most examines
+   the first 32 bytes of the file to determine if the file is a
+   binary file and then switches to the appropriate mode. However,
+   this feature may be disabled with the -k option. See the
+   description of the -b, -k, -v, and -t options for further
+   details.
+
+   Text files may contain combinations of underscore and backspace
+   characters causing a printer to underline or overstrike. When
+   most recognizes this, it inserts the appropriate escape
+   sequences to achieve the desired effect. In addition, some
+   files cause the printer to overstrike some characters by
+   embedding carriage return characters in the middle of a line.
+   When this occurs, most displays the overstruck character with a
+   bold attribute. This feature facilitates the reading of UNIX
+   man pages or a document produced by runoff. In particular,
+   viewing this document with most should illustrate this behavior
+   provided that the underline characters have not been stripped.
+   This may be turned off with the -v option.
+
+   By default, lines with more characters than the terminal width
+   are not wrapped but are instead truncated. When truncation
+   occurs, this is indicated by a `$' in the far right column of
+   the terminal screen. The RIGHT and LEFT arrow keys may be used
+   to view lines which extend past the margins of the screen. The
+   -w option may be used to override this feature. When a window
+   is wrapped, the character `\' will appear at the right edge of
+   the window.
+
+   Commands are listed below.
+
+OPTIONS
+
+   -1
+          VT100 mode. This is meaningful only on VMS systems. This
+          option should be used if the terminal is strictly a
+          VT100. This implies that the terminal does not have the
+          ability to delete and insert multiple lines. VT102s and
+          above have this ability.
+
+   -b
+          Binary mode. Use this switch when you want to view files
+          containing 8 bit characters. most will display the file
+          16 bytes per line in hexadecimal notation. A typical
+          line looks like:
+
+   01000000 40001575 9C23A020 4000168D     ....@..u.#. @...
+
+          When used with the -v option, the same line looks like:
+
+   ^A^@^@^@  @^@^U u 9C #A0    @^@^V8D     ....@..u.#. @...
+
+   -C
+          Disable color support.
+
+   -c
+          Make searches case-sensitive
+
+   -d
+          Omit the backslash mark used to denote a wrapped line.
+
+   -M
+          Disable the use of mmap.
+
+   -r
+          Default to using regexp searches
+
+   -s
+          Squeeze-mode. Replace multiple blank lines with a single
+          blank line.
+
+   -t
+          Display tabs as ^I. If this option is immediately
+          followed by an integer, the integer sets the tab width,
+          e.g., -t4
+
+   -u
+          Disable UTF-8 mode even if the locale dictates it
+
+   +u
+          Force UTF-8 mode. By default most will use the current
+          locale to determine if UTF-8 mode should be used. The +u
+          and -u switches allow the behavior to be overridden
+
+   -v
+          Display control characters as in `^A' for control A.
+          Normally most does not interpret control characters.
+
+   -w
+          Wrap lines
+
+   -z
+          Disable gunzip-on-the-fly
+
+   +/string
+          Start up at the line containing the first occurrence of
+          string
+
+   +lineno
+          Start up at the specified line-number
+
+   +d
+          This switch should only be used if you want the option
+          to delete a file while viewing it. This makes it easier
+          to clean unwanted files out of a directory. The file is
+          deleted with the interactive key sequence `:D' and then
+          confirming with `y'.
+
+   +s
+          Secure Mode-- no edit, cd, shell, and reading files not
+          already listed on the command line.
+
+COMMAND USAGE
+
+   The commands take effect immediately; it is not necessary to
+   type a carriage return. In the following commands, i is a
+   numerical argument (1 by default).
+
+   SPACE, CTRL-D, NEXT_SCREEN
+          Display another windowful, or jump i windowfuls if i is
+          specified.
+
+   RETURN, DOWN_ARROW, V, CTRL-N
+          Display another line, or i more lines, if specified.
+
+   UP_ARROW, ^, CTRL-P
+          Display previous line, or i previous lines, if
+          specified.
+
+   T, ESCAPE<
+          Move to top of buffer.
+
+   B, ESCAPE>
+          Move to bottom of buffer.
+
+   RIGHT_ARROW, TAB, >
+          Scroll window left 60i columns to view lines that are
+          beyond the right margin of the window.
+
+   LEFT_ARROW, CTRL-B, <
+          Scroll window right 60i columns to view lines that are
+          beyond the left margin of the window.
+
+   U, CTRL-U, DELETE, PREV_SCREEN
+          Skip back i windowfuls and then print a windowful.
+
+   R, CTRL-R
+          Redraw the window.
+
+   J, G
+          If i is not specified, then prompt for a line number
+          then jump to that line otherwise just jump to line i.
+
+   %
+          If i is not specified, then prompt for a percent number
+          then jump to that percent of the file otherwise just
+          jump to i percent of the file.
+
+   W, w
+          If the current screen width is 80, make it 132 and
+          vice-versa. For other values, this command is ignored.
+
+   Q, CTRL-X CTRL-C, CTRL-K E
+          Exit from most. On VMS, ^Z also exits.
+
+   h, CTRL-H, HELP, PF2
+          Help. Give a description of all the most commands. The
+          most environment variable MOST_HELP must be set for this
+          to be meaningful.
+
+   f, /, CTRL-F, FIND, GOLD PF3
+          Prompt for a string and search forward from the current
+          line for ith distinct line containing the string. CTRL-G
+          aborts.
+
+   ?
+          Prompt for a string and search backward for the ith
+          distinct line containing the string. CTRL-G aborts.
+
+   n
+          Search for the next i lines containing an occurrence of
+          the last search string in the direction of the previous
+          search.
+
+   m, SELECT, CTRL-@, CTRL-K M, PERIOD
+          Set a mark on the current line for later reference.
+
+   INSERT_HERE, CTRL-X CTRL-X, COMMA, CTRL-K RETURN, GOLD PERIOD
+          Set a mark on the current line but return to previous
+          mark. This allows the user to toggle back and forth
+          between two positions in the file.
+
+   l, L
+          Toggle locking for this window. The window is locked if
+          there is a `*' at the left edge of the status line.
+          Windows locked together, scroll together.
+
+   CTRL-X 2, CTRL-W 2, GOLD X
+          Split this window in half.
+
+   CTRL-X o, CTRL-W o, o, GOLDUP, GOLDDOWN
+          Move to other window.
+
+   CTRL-X 0, CTRL-W 0, GOLD V
+          Delete this window.
+
+   CTRL-X 1, CTRL-W 1, GOLD O
+          Delete all other windows, leaving only one window.
+
+   E, e
+          Edit this file.
+
+   $, ESC $
+          This is system dependent. On VMS, this causes most to
+          spawn a subprocess. When the user exits the process,
+          most is resumed. On UNIX systems, most simply suspends
+          itself.
+
+   :n
+          Skip to the next filename given in the command line. Use
+          the arrow keys to scroll forward or backward through the
+          file list. `Q' quits most and any other key selects the
+          given file.
+
+   :c
+          Toggle case sensitive search.
+
+   :D
+          Delete current file. This command is only meaningful
+          with the +d switch.
+
+   :o, :O
+          Toggle various options. With this key sequence, most
+          displays a prompt asking the user to hit one of: bdtvw.
+          The `b', `t', `v', and `w' options have the same meaning
+          as the command line switches. For example, the `w'
+          option will toggle wrapping on and off for the current
+          window.
+
+          The `d' option must be used with a prefix integer i. All
+          lines indented beyond i columns will not be displayed.
+          For example, consider the fragment:
+
+   int main(int argc, char **argv)
+   {
+     int i;
+     for (i = 0; i < argc, i++)
+       {
+         fprintf(stdout,"%i: %s\n",i,argv[i]);
+       }
+     return 0;
+   }
+
+          The key sequence `1:od' will cause most to display the
+          file ignoring all lines indented beyond the first
+          column. So for the example above, most would display:
+
+   int main(int argc, char **argv)...
+   }
+
+          where the `...' indicates lines that follow are not
+          displayed.
+
+HINTS
+
+   CTRL-G aborts the commands requiring the user to type something
+   in at a prompt. The back-quote key has a special meaning here.
+   It is used to quote certain characters. This is useful when
+   search for the occurrence of a string with a control character
+   or a string at the beginning of a line. In the latter case, to
+   find the occurrence of `The' at the beginning of a line, enter
+   `^JThe where ` quotes the CTRL-J.
+
+ENVIRONMENT
+
+   most uses the following environment variables:
+
+   MOST_SWITCHES
+          This variable sets commonly used switches. For example,
+          some people prefer to use most with the -s option so
+          that excess blank lines are not displayed. On VMS this
+          is normally done done in the login.com through the line:
+
+   $ define MOST_SWITCHES "-s"
+
+   MOST_EDITOR, SLANG_EDITOR
+          Either of these environment variables specify an editor
+          for most to invoke to edit a file. The value can contain
+          %s and %d formatting descriptors that represent the file
+          name and line number, respectively. For example, if JED
+          is your editor, then set MOST_EDITOR to 'jed %s -g %d'.
+
+   MOST_HELP
+          This variable may be used to specify an alternate help
+          file.
+
+   MOST_INITFILE
+          Set this variable to specify the initialization file to
+          load during startup. The default action is to load the
+          system configuration file and then a personal
+          configuration file called .mostrc on Unix, and most.rc
+          on other systems.
+
+CONFIGURATION FILE SYNTAX
+
+   When most starts up, it tries to read a system configuration
+   file and then a personal configuration file. These files may be
+   used to specify key-bindings and colors.
+
+   To bind a key to a particular function use the syntax:
+    setkey function-name key-sequence
+
+   The setkey command requires two arguments. The function-name
+   argument specifies the function that is to be executed as a
+   response to the keys specified by the key-sequence argument are
+   pressed. For example,
+    setkey   "up"     "^P"
+
+   indicates that when Ctrl-P is pressed then the function up is
+   to be executed.
+
+   Sometimes, it is necessary to first unbind a key-sequence
+   before rebinding it in order via the unsetkey function:
+    unsetkey "^F"
+
+   Colors may be defined through the use of the color keyword in
+   the the configuration file using the syntax:
+    color OBJECT-NAME FOREGROUND-COLOR BACKGROUND-COLOR
+
+   Here, OBJECT-NAME can be any one of the following items:
+     status           -- the status line
+     underline        -- underlined text
+     overstrike       -- overstruck text
+     normal           -- anything else
+
+   See the sample configuration files for more information.
+
+BUGS
+
+   Almost all of the known bugs or limitations of most are due to
+   a desire to read and interpret control characters in files. One
+   problem concerns the use of backspace characters to underscore
+   or overstrike other characters. most makes an attempt to use
+   terminal escape sequences to simulate this behavior. One side
+   effect is the one does not always get what one expects when
+   scrolling right and left through a file. When in doubt, use the
+   -v and -b options of most.
+
+   The regular-expression searches may fail to find strings that
+   involve backspace/underscore used for highlighting. The
+   regular-expression syntax is described in the S-Lang Library
+   documentation.
+
+AUTHOR
+
+   John E. Davis <jed@jedsoft.org>
+
+ACKNOWLEDGEMENTS
+
+   Over the years, many people have contributed to most in one way
+   or another, e.g., via code patches, bug-fixes, comments, or
+   criticisms. I am particularly grateful to the very early
+   adopters of the program who took a chance with a fledgling
+   software project headed by someone learning the underlying
+   language. These include:
+
+   Mats Akerberg, Henk D. Davids, Rex O. Livingston, and Mark
+   Pizzolato contributed to the early VMS versions of most. In
+   particular, Mark worked on it to get it ready for DECUS.
+
+   Foteos Macrides adapted most for use in cswing and gopher. A
+   few features of the present version of most was inspired from
+   his work.
+
+   I am grateful to Robert Mills for re-writing the search
+   routines to use regular expressions.
+
+   Sven Oliver Moll came up with the idea of automatic detection
+   of zipped files.
+
+   I would also like to thank Shinichi Hama for his valuable
+   criticisms of most.
+
+   Javier Kohen was instrumental in the support for UTF-8.
+
+   Thanks to David W. Sanderson for adapting the early
+   documentation to nroff man page source format.

vendor/most-5.1.0/doc/tm/Makefile

@@ -0,0 +1,27 @@
+# -*- sh -*-
+#
+# To create the SGML files, you will need to install the tmexpand
+# package.  See http://www.jedsoft.org/ for more information.
+#
+TM2SGML = tmexpand
+SGML2HTML = sgml2html
+DOCBOOK2MAN = docbook2man
+DOCBOOK2TXT = docbook2txt
+
+all: most.1 most.txt
+
+most.1: most.sgml
+	$(DOCBOOK2MAN) most.sgml
+most.sgml: most.tm
+	$(TM2SGML) most.tm most.sgml
+most.txt: most.sgml
+	$(DOCBOOK2TXT) most.sgml
+view: most.1
+	nroff -man most.1 | most
+#----------------------------------------------------------------------------
+clean:
+	-rm -f *~ *-error manpage.refs manpage.links
+distclean: clean
+	-rm -f most.1 most.sgml
+install: most.1 most.txt
+	mv most.1 most.txt ..

vendor/most-5.1.0/doc/tm/most.tm

@@ -0,0 +1,427 @@
+#i docbook_man.tm
+
+#d man_options_entry#2 \varlistentry{\term{$1}}{\p $2 \p-end}\__newline__
+
+#d arg#1 <arg>$1</arg>\__newline__
+#d desc-list \variablelist
+#d desc-item#2 \varlistentry{\term{$1}}{\p $2 \p-end}\__newline__
+#d desc-item-continue <varlistentry><term></term><listitem>\p
+#d desc-item-continue-end </listitem></varlistentry>
+#d desc-list-end \variablelist-end
+
+#d envdesc#2 \varlistentry{\term{$1}}{\p $2 \p-end}\__newline__
+#d envdesc-begin \variablelist
+#d envdesc-end \variablelist-end
+#d envdesc-verb-begin <varlistentry><term></term><listitem>
+#d envdesc-verb-end </listitem></varlistentry>
+
+#d most \command{most}
+#d slang \literal{S-Lang}
+#d lit#1 \literal{$1}
+#d underline#1 <emphasis role="underline">$1</emphasis>
+#d i \underline{i}
+
+\manpage{most}{1}{browse or page through a text file}
+\mansynopsis{most}{
+  \arg{\option{-1}}
+  \arg{\option{-b}}
+  \arg{\option{-C}}
+  \arg{\option{-c}}
+  \arg{\option{-d}}
+  \arg{\option{-M}}
+  \arg{\option{-r}}
+  \arg{\option{-s}}
+  \arg{\option{-t}}
+  \arg{\option{-u}}
+  \arg{\option{-v}}
+  \arg{\option{-w}}
+  \arg{\option{-z}}
+  \arg{\option{+/\replaceable{string}}}
+  \arg{\option{+\replaceable{line-number}}}
+  \arg{\option{+d}}
+  \arg{\option{+s}}
+  \arg{\option{+u}}
+  \arg{\option{\replaceable{file...}}}
+}
+
+\refsect1{DESCRIPTION}
+  \p
+  \most is a paging program that displays, one windowful at a time,
+  the contents of a file on a terminal.  It pauses after each
+  windowful and prints on the window status line the screen the file
+  name, current line number, and the percentage of the file so far
+  displayed.
+  \pp
+  Unlike other paging programs, \most is capable of displaying an
+  arbitrary number of windows as long as each window occupies at least
+  two screen lines.  Each window may contain the same file or a
+  different file.  In addition, each window has its own mode.  For
+  example, one window may display a file with its lines wrapped while
+  another may be truncating the lines. Windows may be `locked'
+  together in the sense that if one of the locked windows scrolls, all
+  locked windows will scroll.  \most is also capable of ignoring lines
+  that are indented beyond a user specified value.  This is useful
+  when viewing computer programs to pick out gross features of the
+  code.  See the `:o' command for a description of this feature.
+\pp
+  In addition to displaying ordinary text files, \most can also
+  display binary files as well as files with arbitrary ascii
+  characters.  When a file is read into a buffer, \most examines the
+  first 32 bytes of the file to determine if the file is a binary file
+  and then switches to the appropriate mode.  However, this feature
+  may be disabled with the -k option.  See the description of the -b,
+  -k, -v, and -t options for further details.
+\pp
+  Text files may contain combinations of underscore and backspace
+  characters causing a printer to underline or overstrike.  When \most
+  recognizes this, it inserts the appropriate escape sequences to
+  achieve the desired effect.  In addition, some files cause the
+  printer to overstrike some characters by embedding carriage return
+  characters in the middle of a line.  When this occurs, \most displays
+  the overstruck character with a bold attribute.  This feature
+  facilitates the reading of UNIX man pages or a document produced by
+  runoff.  In particular, viewing this document with \most should
+  illustrate this behavior provided that the underline characters
+  have not been stripped.  This may be turned off with the -v option.
+\pp
+  By default, lines with more characters than the terminal width are
+  not wrapped but are instead truncated. When truncation occurs, this
+  is indicated by a `$' in the far right column of the terminal
+  screen.  The RIGHT and LEFT arrow keys may be used to view lines
+  which extend past the margins of the screen.  The -w option may be
+  used to override this feature.  When a window is wrapped, the
+  character `\\' will appear at the right edge of the window.
+\pp
+  Commands are listed below.
+\p-end
+\refsect1-end
+
+\refsect1{OPTIONS}
+ \variablelist
+
+  \man_options_entry{\option{-1}}{VT100 mode.  This is meaningful only
+  on VMS systems.  This option should be used if the terminal is
+  strictly a VT100.  This implies that the terminal does not have the
+  ability to delete and insert multiple lines.  VT102s and above have
+  this ability.}
+
+  \man_options_entry{\option{-b}}{ Binary mode.  Use this switch when
+  you want to view files containing 8 bit characters.  \most will
+  display the file 16 bytes per line in hexadecimal notation. A
+  typical line looks like:
+#v+
+   01000000 40001575 9C23A020 4000168D     ....@..u.#. @...
+#v-
+  \pp
+  When used with the -v option, the same line looks like:
+#v+
+   ^A^@^@^@  @^@^U u 9C #A0    @^@^V8D     ....@..u.#. @...
+#v-
+  }
+
+  \man_options_entry{\option{-C}}{Disable color support.}
+  \man_options_entry{\option{-c}}{Make searches case-sensitive}
+  \man_options_entry{\option{-d}}{Omit the backslash mark used to denote a wrapped line.}
+  \man_options_entry{\option{-M}}{Disable the use of mmap.}
+  \man_options_entry{\option{-r}}{Default to using regexp searches}
+  \man_options_entry{\option{-s}}{Squeeze-mode.  Replace multiple blank
+  lines with a single blank line.}
+
+  \man_options_entry{\option{-t}}{Display tabs as ^I.  If this option
+  is immediately followed by an integer, the integer sets the tab
+  width, e.g., -t4}
+
+  \man_options_entry{\option{-u}}{Disable UTF-8 mode even if the
+  locale dictates it}
+
+  \man_options_entry{\option{+u}}{Force UTF-8 mode.  By default \most
+  will use the current locale to determine if UTF-8 mode should be
+  used.  The +u and -u switches allow the behavior to be overridden}
+
+  \man_options_entry{\option{-v}}{Display control characters as in
+  `^A' for control A.  Normally \most does not interpret control
+  characters.}
+  \man_options_entry{\option{-w}}{Wrap lines}
+  \man_options_entry{\option{-z}}{Disable gunzip-on-the-fly}
+
+  \man_options_entry{\option{+/\replaceable{string}}}{Start up at the
+  line containing the first occurrence of string}
+
+  \man_options_entry{\option{+\replaceable{lineno}}}{Start up at the
+  specified line-number}
+
+  \man_options_entry{\option{+d}}{This switch should only be used if
+    you want the option to delete a file while viewing it.  This makes
+    it easier to clean unwanted files out of a directory. The file is
+    deleted with the interactive key sequence `:D' and then confirming
+    with `y'.}
+
+  \man_options_entry{\option{+s}}{Secure Mode-- no edit, cd, shell,
+  and reading files not already listed on the command line.}
+
+ \variablelist-end
+\refsect1-end
+
+\refsect1{COMMAND USAGE}
+\p
+   The commands take effect immediately; it is not necessary to type a
+   carriage return.  In the following commands, \i is a numerical
+   argument (1 by default).
+\desc-list
+\desc-item{SPACE, CTRL-D, NEXT_SCREEN}{
+   Display another windowful, or jump \i windowfuls if \i is specified.}
+\desc-item{RETURN, DOWN_ARROW, V, CTRL-N}{
+Display another line, or \i more lines, if specified.}
+
+\desc-item{UP_ARROW, ^, CTRL-P}{Display previous line, or \i previous
+lines, if specified.}
+
+\desc-item{T, ESCAPE<}{Move to top of buffer.}
+
+\desc-item{B, ESCAPE>}{Move to bottom of buffer.}
+
+\desc-item{RIGHT_ARROW, TAB, >}{Scroll window left 60\i columns to view
+lines that are beyond the right margin of the window.}
+
+\desc-item{LEFT_ARROW, CTRL-B, <}{Scroll window right 60\i columns to
+view lines that are beyond the left margin of the window.}
+
+\desc-item{U, CTRL-U, DELETE, PREV_SCREEN}{Skip back \i windowfuls and
+then print a windowful.}
+
+\desc-item{R, CTRL-R}{Redraw the window.}
+
+\desc-item{J, G}{If  \i  is  not  specified, then prompt for a line
+number then jump to that line otherwise just jump to line i.}
+
+\desc-item{%}{If \i is not specified, then prompt for a percent number
+then jump to that percent of the file otherwise just jump to \i percent
+of the file.}
+
+\desc-item{W, w}{If  the  current  screen  width  is 80, make it 132 and
+vice-versa.  For other values, this command is ignored.}
+
+\desc-item{Q, CTRL-X CTRL-C, CTRL-K E}{Exit from \most.  On VMS, ^Z also
+exits.}
+
+\desc-item{h, CTRL-H, HELP, PF2}{Help.  Give a description of all the
+\most commands.  The \most environment variable MOST_HELP must be set
+for this to be meaningful.}
+
+\desc-item{f, /, CTRL-F, FIND, GOLD PF3}{Prompt  for  a  string  and
+search forward from the current line for ith distinct line containing
+the string.  CTRL-G aborts.}
+
+\desc-item{?}{Prompt for a string and search backward for the ith
+distinct line containing the string.  CTRL-G aborts.}
+
+\desc-item{n}{Search for the next \i lines containing an occurrence of
+the last search string in the direction of the previous search.}
+
+\desc-item{m, SELECT, CTRL-@, CTRL-K M, PERIOD}{Set a mark on the
+current line for later reference.}
+
+\desc-item{INSERT_HERE, CTRL-X CTRL-X, COMMA, CTRL-K RETURN, GOLD
+PERIOD}{Set a mark on the current line but return to previous mark. 
+This allows the user to toggle back and forth between two positions in
+the file.}
+
+\desc-item{l, L}{Toggle locking for this window.  The window is locked
+if there is a `*' at the left edge of the status line.  Windows locked
+together, scroll together.}
+
+\desc-item{CTRL-X 2, CTRL-W 2, GOLD X}{Split this window in half.}
+
+\desc-item{CTRL-X o, CTRL-W o, o, GOLDUP, GOLDDOWN}{Move to other window.}
+
+\desc-item{CTRL-X 0, CTRL-W 0, GOLD V}{Delete this window.}
+
+\desc-item{CTRL-X 1, CTRL-W 1, GOLD O}{Delete all other windows, leaving
+only one window.}
+
+\desc-item{E, e}{Edit this file.}
+
+\desc-item{$, ESC $}{This is system dependent.  On VMS, this causes \most
+to spawn a subprocess.  When the user exits the process, \most is
+resumed.  On UNIX systems, \most simply suspends itself.}
+
+\desc-item{:n}{Skip to the next filename given in the command line.  Use
+the arrow keys to scroll forward or backward through the file list.
+`Q' quits \most and any other key selects the given file.}
+
+\desc-item{:c}{Toggle case sensitive search.}
+
+\desc-item{:D}{Delete current file.  This command is only meaningful
+with the +d switch.}
+
+\desc-item{:o, :O}{Toggle various options.  With this key sequence, \most
+displays a prompt asking the user to hit one of: bdtvw.  The `b', `t',
+`v', and `w' options have the same meaning as the command line
+switches.  For example, the `w' option will toggle wrapping on and off
+for the current window.
+\p
+The `d' option must be used with a prefix integer i.  All lines
+indented beyond \i columns will not be displayed.  For example,
+consider the fragment:}
+\desc-item-continue
+#v+
+   int main(int argc, char **argv)
+   {
+     int i;
+     for (i = 0; i < argc, i++)
+       {
+         fprintf(stdout,"%i: %s\n",i,argv[i]);
+       }
+     return 0;
+   }
+#v-
+The key sequence `1:od' will cause \most to display the file ignoring
+all lines indented beyond the first column.  So for the example above,
+\most would display:
+#v+
+   int main(int argc, char **argv)...
+   }
+#v-
+where the `...' indicates lines that follow are not displayed.
+\desc-item-continue-end
+\desc-list-end
+\p-end
+\refsect1-end
+
+\refsect1{HINTS}
+\p
+  CTRL-G aborts the commands requiring the user to type something in
+  at a prompt.  The back-quote key has a special meaning here.  It is
+  used to quote certain characters.  This is useful when search for
+  the occurrence of a string with a control character or a string at
+  the beginning of a line.  In the latter case, to find the occurrence
+  of `The' at the beginning of a line, enter `^JThe where ` quotes the
+  CTRL-J.
+\p-end
+\refsect1-end
+
+\refsect1{ENVIRONMENT}
+\p
+  \most uses the following environment variables:
+\desc-list
+\desc-item{MOST_SWITCHES}{This  variable  sets  commonly used switches.
+For example, some people prefer to use \most with the -s option so that
+excess blank lines are not displayed.  On VMS this is normally done
+done in the login.com through the line:}
+\desc-item-continue
+#v+
+   $ define MOST_SWITCHES "-s"
+#v-
+\desc-item-continue-end
+
+\desc-item{MOST_EDITOR, SLANG_EDITOR}{Either  of  these environment
+variables specify an editor for \most to invoke to edit a file. The
+value can contain %s and %d formatting descriptors that represent the
+file name and line number, respectively.  For example, if JED is
+your editor, then set MOST_EDITOR to 'jed %s -g %d'.}
+
+\desc-item{MOST_HELP}{This variable may be used to specify an alternate
+help file.}
+
+\desc-item{MOST_INITFILE}{Set this variable to specify the
+initialization file to load during startup.  The default action is to
+load the system configuration file and then a personal configuration
+file called .mostrc on Unix, and most.rc on other systems.}
+\desc-list-end
+\refsect1-end
+
+\refsect1{CONFIGURATION FILE SYNTAX}
+\p
+When \most starts up, it tries to read a system configuration file and
+then a personal configuration file. These files may be used to specify
+key-bindings and colors.
+\pp
+To bind a key to a particular function use the syntax:
+#v+
+    setkey function-name key-sequence
+#v-
+\pp
+The setkey command requires two arguments.  The function-name argument
+specifies the function that is to be executed as a response to the
+keys specified by the key-sequence argument are pressed.  For example,
+#v+
+    setkey   "up"     "^P"
+#v-
+\pp
+indicates that when Ctrl-P is pressed then the function up is to be executed.
+\pp
+Sometimes, it is necessary to first unbind a key-sequence before
+rebinding it in order via the unsetkey function:
+#v+
+    unsetkey "^F"
+#v-
+\pp
+Colors may be defined through the use of the color keyword in the the
+configuration file using the syntax:
+#v+
+    color OBJECT-NAME FOREGROUND-COLOR BACKGROUND-COLOR
+#v-
+\pp
+Here, OBJECT-NAME can be any one of the following items:
+#v+
+     status           -- the status line
+     underline        -- underlined text
+     overstrike       -- overstruck text
+     normal           -- anything else
+#v-
+\pp
+See the sample configuration files for more information.
+\p-end
+\refsect1-end
+
+\refsect1{BUGS}
+\p
+Almost all of the known bugs or limitations of \most are due to a
+desire to read and interpret control characters in files.  One
+problem concerns the use of backspace characters to underscore or
+overstrike other characters.  \most makes an attempt to use terminal
+escape sequences to simulate this behavior.  One side effect is the
+one does not always get what one expects when scrolling right and left
+through a file.  When in doubt, use the -v and -b options of \most.
+\pp
+The regular-expression searches may fail to find strings that involve
+backspace/underscore used for highlighting.  The regular-expression
+syntax is described in the S-Lang Library documentation.
+\p-end
+\refsect1-end
+
+\refsect1{AUTHOR}
+\p
+  John E. Davis \email{jed@jedsoft.org}
+\p-end
+\refsect1{ACKNOWLEDGEMENTS}
+\p
+Over the years, many people have contributed to \most in one way or
+another, e.g., via code patches, bug-fixes, comments, or criticisms.
+I am particularly grateful to the very early adopters of the program
+who took a chance with a fledgling software project headed by someone
+learning the underlying language.  These include: 
+\pp
+  Mats Akerberg, Henk D. Davids, Rex O. Livingston, and Mark Pizzolato
+  contributed to the early VMS versions of \most.  In particular, Mark
+  worked on it to get it ready for DECUS.
+\pp
+  Foteos Macrides adapted \most for use in cswing and gopher.  A few
+  features of the present version of \most was inspired from his work.
+\pp
+  I am grateful to Robert Mills for re-writing the search routines to
+  use regular expressions.
+\pp
+  Sven Oliver Moll came up with the idea of automatic detection of
+  zipped files.
+\pp
+  I would also like to thank Shinichi Hama for his valuable criticisms
+  of \most.
+\pp
+  Javier Kohen was instrumental in the support for UTF-8.
+\pp
+  Thanks to David W. Sanderson for adapting the early documentation to
+  nroff man page source format.
+\p-end
+\refsect1-end
+\manpage-end

vendor/most-5.1.0/most.lis

@@ -0,0 +1,63 @@
+@configure 0755
+@most.lis
+@README
+@COPYRIGHT
+@COPYING
+@NEWS
+@changes.txt
+
+@doc/lesskeys.rc
+@doc/most.rc
+@doc/most-fun.txt
+@doc/most.1
+@doc/most.txt
+@doc/most.hlp
+@doc/tm/most.tm
+@doc/tm/Makefile
+
+@autoconf/Makefile.in
+@autoconf/aclocal.m4
+@autoconf/configure.ac
+@autoconf/mkinsdir.sh 0755
+@autoconf/install.sh 0755
+@autoconf/config.guess 0755
+@autoconf/config.sub 0755
+
+@src/DESCRIP.MMS
+@src/VMSMAKE.COM
+@src/RTL.OPT
+@src/Makefile.in
+@src/Makefile.w32
+@src/sysconf.h
+@src/config.hin
+@src/mostconf.h
+@src/modules.lis
+@src/w32conf.h
+@src/jdmacros.h
+@src/main.c
+@src/buffer.c
+@src/file.c
+@src/window.c
+@src/line.c
+@src/display.c
+@src/sysdep.c
+@src/keym.c
+@src/most.c
+@src/search.c
+@src/help.c
+@src/cmd.c
+@src/edit.c
+@src/edit.h
+@src/buffer.h
+@src/file.h
+@src/window.h
+@src/line.h
+@src/display.h
+@src/sysdep.h
+@src/keym.h
+@src/most.h
+@src/search.h
+@src/keyparse.c
+@src/keyparse.h
+@src/chkslang.c
+@src/version.h

vendor/most-5.1.0/src/DESCRIP.MMS

@@ -0,0 +1,68 @@
+#
+#  MMS file to build MOST.
+#
+#  Written by Hunter Goatley <goathunter@WKUVX1.BITNET> ( 4-OCT-1993 15:41)
+#  Removed reference to DIR.C, Michael Lemke <ai26@alf001.sternwarte.uni-erlangen.de> ( 3-NOV-1995 17:25:44.05)
+#  Moved CC =.. into if clause.  New MMS doesn't like redefinition of macros.
+#   6-AUG-1997 14:43:25.04 Michael Lemke <ai26@alf001.sternwarte.uni-erlangen.de> ( 3-NOV-1995 17:25:44.05)
+#
+.IFDEF __MATTS_MMS__
+.ELSE
+EXE = .EXE
+OBJ = .OBJ
+.ENDIF
+
+
+.IFDEF __ALPHA__
+CC = CC/STANDARD=VAXC
+OPTFILE =
+OPTIONS =
+NATIVE  = /NONATIVE_ONLY
+.ELSE
+CC = CC/STANDARD/VAXC
+OPTFILE = ,VAXCRTL.OPT
+OPTIONS = $(OPTFILE)/OPTIONS
+NATIVE  =
+.ENDIF
+
+.IFDEF SLANG_OLB
+.ELSE
+SLANG_DIR = [-.SLANG.SRC]
+SLANG_OLB = $(SLANG_DIR)SLANG$(OLB)
+.ENDIF
+
+CFLAGS = $(CFLAGS)/DEFINE=(USE_SLANG)/INCLUDE=$(SLANG_DIR)
+LINKFLAGS = $(LINKFLAGS)$(NATIVE)/NOTRACE
+
+OBJS =	MAIN$(OBJ),-
+	BUFFER$(OBJ),-
+	FILE$(OBJ),-
+	WINDOW$(OBJ),-
+	LINE$(OBJ),-
+	DISPLAY$(OBJ),-
+	SYSDEP$(OBJ),-
+	KEYM$(OBJ),-
+	MOST$(OBJ),-
+	SEARCH$(OBJ),-
+	HELP$(OBJ),-
+	CMD$(OBJ),-
+	EDIT$(OBJ),-
+	KEYPARSE$(OBJ)
+#	DIR$(OBJ),-
+
+MOST$(EXE) :	config.h $(OBJS)$(OPTFILE)
+	$(LINK)$(LINKFLAGS) $(OBJS)$(OPTIONS),$(SLANG_OLB)/LIBRARY
+
+config.h : mostconf.h
+	copy mostconf.h config.h
+
+#
+#  Build the linker options file for OpenVMS VAX and VAX C.
+#
+VAXCRTL.OPT :
+        @ open/write tmp vaxcrtl.opt
+        @ write tmp "SYS$SHARE:VAXCRTL.EXE/SHARE"
+        @ close tmp
+
+
+

vendor/most-5.1.0/src/Makefile

@@ -0,0 +1,150 @@
+CC		= gcc
+CFLAGS		= -g -O2 
+LDFLAGS		= 
+SLANG_INC	= 
+SLANG_LIB	=  -lslang
+MISCLIBS	= 
+RPATH		= 
+
+#-----------------------------------------------------------------------------
+# Location where object files are placed (Absolute path)
+#-----------------------------------------------------------------------------
+SRCDIR = /home/greg/code/most-5.1.0/src
+OBJDIR = /home/greg/code/most-5.1.0/src/$(ARCH)objs
+
+#----------------------------------------------------------------------------
+# 5. Install location
+#----------------------------------------------------------------------------
+INSTALL		= /usr/bin/install -c
+INSTALL_DATA	= ${INSTALL} -m 644
+DESTDIR		=
+prefix		= /usr/local
+exec_prefix	= ${prefix}
+datarootdir	= ${prefix}/share
+BIN_DIR		= $(prefix)/bin
+MAN_DIR		= $(datarootdir)/man
+DOC_DIR		= $(datarootdir)/doc/most
+SYS_INITFILE	= ${prefix}/etc/most.conf
+MKINSDIR	= ../autoconf/mkinsdir.sh
+
+DOC_FILES = ../doc/most.txt ../README ../doc/most-fun.txt ../doc/lesskeys.rc ../doc/most.rc ../changes.txt
+
+#----------------------------------------------------------------------------
+# Nothing below here should require changing.
+#----------------------------------------------------------------------------
+DEST_DOCDIR	= $(DESTDIR)$(DOC_DIR)
+DEST_MANDIR	= $(DESTDIR)$(MAN_DIR)
+DEST_BINDIR	= $(DESTDIR)$(BIN_DIR)
+#
+SHELL = /bin/sh
+OBJS =  $(OBJDIR)/buffer.o $(OBJDIR)/cmd.o $(OBJDIR)/display.o $(OBJDIR)/edit.o $(OBJDIR)/file.o $(OBJDIR)/help.o $(OBJDIR)/keym.o $(OBJDIR)/keyparse.o $(OBJDIR)/line.o $(OBJDIR)/main.o $(OBJDIR)/most.o $(OBJDIR)/search.o $(OBJDIR)/sysdep.o $(OBJDIR)/window.o
+OFILES =  buffer.o cmd.o display.o edit.o file.o help.o keym.o keyparse.o line.o main.o most.o search.o sysdep.o window.o
+
+EXEC = most
+CONFIG_H = config.h
+INCS = $(SLANG_INC)
+ALL_CFLAGS = $(CFLAGS) -Dunix $(INCS)
+EXECLIBS = $(RPATH) $(SLANG_LIB) $(MISCLIBS) -lm
+#
+most_O_DEP = $(SRCDIR)/version.h
+UPDATE_VERSION_SCRIPT = $(HOME)/bin/update_changes_version
+
+COMPILE_CMD = $(CC) -c $(ALL_CFLAGS) -DMOST_SYSTEM_INITFILE='"$(SYS_INITFILE)"'
+#
+all: $(EXEC)
+$(EXEC): $(OBJDIR) $(CONFIG_H) slangversion $(OBJDIR)/$(EXEC)
+	@echo $(EXEC) created in $(OBJDIR)
+$(OBJDIR)/$(EXEC): $(OBJS)
+	cd $(OBJDIR); $(CC) $(OFILES) -o $(EXEC) $(LDFLAGS) $(EXECLIBS)
+#
+$(OBJDIR):
+	-mkdir $(OBJDIR)
+#
+$(CONFIG_H) : $(SRCDIR)/sysconf.h
+	/bin/cp $(SRCDIR)/sysconf.h $(CONFIG_H)
+#
+slangversion: $(OBJDIR)/chkslang
+	$(OBJDIR)/chkslang $(EXEC) 20000
+#
+$(OBJDIR)/chkslang: $(OBJDIR)/chkslang.o
+	$(CC) $(OBJDIR)/chkslang.o -o $(OBJDIR)/chkslang $(LDFLAGS) $(EXECLIBS)
+#
+$(SRCDIR)/version.h: $(SRCDIR)/../changes.txt
+	if [ -x $(UPDATE_VERSION_SCRIPT) ]; then \
+	  $(UPDATE_VERSION_SCRIPT) $(SRCDIR)/../changes.txt $(SRCDIR)/version.h; \
+	fi
+#
+clean:
+	/bin/rm -f $(OBJDIR)/* *~
+distclean: clean
+	/bin/rm -rf $(OBJDIR) Makefile sysconf.h
+installdirs:
+	$(MKINSDIR) $(DEST_DOCDIR)
+	$(MKINSDIR) $(DEST_MANDIR)/man1
+	$(MKINSDIR) $(DEST_BINDIR)
+install: all installdirs
+	$(INSTALL) -s $(OBJDIR)/most $(DEST_BINDIR)
+	$(INSTALL_DATA) ../doc/most.1 $(DEST_MANDIR)/man1
+	@for i in $(DOC_FILES); \
+	do \
+		echo $(INSTALL_DATA) $$i $(DEST_DOCDIR)/; \
+		$(INSTALL_DATA) $$i $(DEST_DOCDIR)/; \
+		if [ "$$?" != "0" ]; then \
+		  exit 1; \
+		fi; \
+	done
+# The symlinks target is for my own private use.  It simply creates the object
+# directory as a symbolic link to a local disk instead of an NFS mounted one.
+symlinks:
+	-/bin/rm -f $(ARCH)objs
+	mkdir -p $(HOME)/sys/$(ARCH)/objs/most/src
+	ln -s $(HOME)/sys/$(ARCH)/objs/most/src $(ARCH)objs
+#---------------------------------------------------------------------------
+# Rules (automatically generated)
+#---------------------------------------------------------------------------
+
+$(OBJDIR)/buffer.o : $(SRCDIR)/buffer.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(buffer_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(buffer_C_FLAGS) $(SRCDIR)/buffer.c
+
+$(OBJDIR)/cmd.o : $(SRCDIR)/cmd.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(cmd_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(cmd_C_FLAGS) $(SRCDIR)/cmd.c
+
+$(OBJDIR)/display.o : $(SRCDIR)/display.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(display_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(display_C_FLAGS) $(SRCDIR)/display.c
+
+$(OBJDIR)/edit.o : $(SRCDIR)/edit.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(edit_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(edit_C_FLAGS) $(SRCDIR)/edit.c
+
+$(OBJDIR)/file.o : $(SRCDIR)/file.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(file_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(file_C_FLAGS) $(SRCDIR)/file.c
+
+$(OBJDIR)/help.o : $(SRCDIR)/help.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(help_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(help_C_FLAGS) $(SRCDIR)/help.c
+
+$(OBJDIR)/keym.o : $(SRCDIR)/keym.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(keym_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(keym_C_FLAGS) $(SRCDIR)/keym.c
+
+$(OBJDIR)/keyparse.o : $(SRCDIR)/keyparse.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(keyparse_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(keyparse_C_FLAGS) $(SRCDIR)/keyparse.c
+
+$(OBJDIR)/line.o : $(SRCDIR)/line.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(line_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(line_C_FLAGS) $(SRCDIR)/line.c
+
+$(OBJDIR)/main.o : $(SRCDIR)/main.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(main_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(main_C_FLAGS) $(SRCDIR)/main.c
+
+$(OBJDIR)/most.o : $(SRCDIR)/most.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(most_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(most_C_FLAGS) $(SRCDIR)/most.c
+
+$(OBJDIR)/search.o : $(SRCDIR)/search.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(search_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(search_C_FLAGS) $(SRCDIR)/search.c
+
+$(OBJDIR)/sysdep.o : $(SRCDIR)/sysdep.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(sysdep_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(sysdep_C_FLAGS) $(SRCDIR)/sysdep.c
+
+$(OBJDIR)/window.o : $(SRCDIR)/window.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(window_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(window_C_FLAGS) $(SRCDIR)/window.c
+
+$(OBJDIR)/chkslang.o : $(SRCDIR)/chkslang.c $(DOT_O_DEPS) $(OBJ_O_DEPS) $(chkslang_O_DEP)
+	cd $(OBJDIR) && $(COMPILE_CMD) $(chkslang_C_FLAGS) $(SRCDIR)/chkslang.c
+

vendor/most-5.1.0/src/Makefile.in

@@ -0,0 +1,104 @@
+CC		= @CC@
+CFLAGS		= @CFLAGS@ @SLANG_DLL_CFLAGS@
+LDFLAGS		= @LDFLAGS@
+SLANG_INC	= @SLANG_INC@
+SLANG_LIB	= @SLANG_LIB@ -lslang
+MISCLIBS	= @TERMCAP@
+RPATH		= @RPATH@
+
+#-----------------------------------------------------------------------------
+# Location where object files are placed (Absolute path)
+#-----------------------------------------------------------------------------
+SRCDIR = @CONFIG_DIR@/src
+OBJDIR = @CONFIG_DIR@/src/$(ARCH)objs
+
+#----------------------------------------------------------------------------
+# 5. Install location
+#----------------------------------------------------------------------------
+INSTALL		= @INSTALL@
+INSTALL_DATA	= @INSTALL_DATA@
+DESTDIR		=
+prefix		= @prefix@
+exec_prefix	= @exec_prefix@
+datarootdir	= @datarootdir@
+BIN_DIR		= $(prefix)/bin
+MAN_DIR		= $(datarootdir)/man
+DOC_DIR		= $(datarootdir)/doc/most
+SYS_INITFILE	= @sysconfdir@/most.conf
+MKINSDIR	= ../autoconf/mkinsdir.sh
+
+DOC_FILES = ../doc/most.txt ../README ../doc/most-fun.txt ../doc/lesskeys.rc ../doc/most.rc ../changes.txt
+
+#----------------------------------------------------------------------------
+# Nothing below here should require changing.
+#----------------------------------------------------------------------------
+DEST_DOCDIR	= $(DESTDIR)$(DOC_DIR)
+DEST_MANDIR	= $(DESTDIR)$(MAN_DIR)
+DEST_BINDIR	= $(DESTDIR)$(BIN_DIR)
+#
+SHELL = /bin/sh
+OBJS = @PROGRAM_OBJECTS@
+OFILES = @PROGRAM_OFILES@
+
+EXEC = most
+CONFIG_H = config.h
+INCS = $(SLANG_INC)
+ALL_CFLAGS = $(CFLAGS) -Dunix $(INCS)
+EXECLIBS = $(RPATH) $(SLANG_LIB) $(MISCLIBS) -lm
+#
+most_O_DEP = $(SRCDIR)/version.h
+UPDATE_VERSION_SCRIPT = $(HOME)/bin/update_changes_version
+
+COMPILE_CMD = $(CC) -c $(ALL_CFLAGS) -DMOST_SYSTEM_INITFILE='"$(SYS_INITFILE)"'
+#
+all: $(EXEC)
+$(EXEC): $(OBJDIR) $(CONFIG_H) slangversion $(OBJDIR)/$(EXEC)
+	@echo $(EXEC) created in $(OBJDIR)
+$(OBJDIR)/$(EXEC): $(OBJS)
+	cd $(OBJDIR); $(CC) $(OFILES) -o $(EXEC) $(LDFLAGS) $(EXECLIBS)
+#
+$(OBJDIR):
+	-mkdir $(OBJDIR)
+#
+$(CONFIG_H) : $(SRCDIR)/sysconf.h
+	/bin/cp $(SRCDIR)/sysconf.h $(CONFIG_H)
+#
+slangversion: $(OBJDIR)/chkslang
+	$(OBJDIR)/chkslang $(EXEC) 20000
+#
+$(OBJDIR)/chkslang: $(OBJDIR)/chkslang.o
+	$(CC) $(OBJDIR)/chkslang.o -o $(OBJDIR)/chkslang $(LDFLAGS) $(EXECLIBS)
+#
+$(SRCDIR)/version.h: $(SRCDIR)/../changes.txt
+	if [ -x $(UPDATE_VERSION_SCRIPT) ]; then \
+	  $(UPDATE_VERSION_SCRIPT) $(SRCDIR)/../changes.txt $(SRCDIR)/version.h; \
+	fi
+#
+clean:
+	/bin/rm -f $(OBJDIR)/* *~
+distclean: clean
+	/bin/rm -rf $(OBJDIR) Makefile sysconf.h
+installdirs:
+	$(MKINSDIR) $(DEST_DOCDIR)
+	$(MKINSDIR) $(DEST_MANDIR)/man1
+	$(MKINSDIR) $(DEST_BINDIR)
+install: all installdirs
+	$(INSTALL) -s $(OBJDIR)/most $(DEST_BINDIR)
+	$(INSTALL_DATA) ../doc/most.1 $(DEST_MANDIR)/man1
+	@for i in $(DOC_FILES); \
+	do \
+		echo $(INSTALL_DATA) $$i $(DEST_DOCDIR)/; \
+		$(INSTALL_DATA) $$i $(DEST_DOCDIR)/; \
+		if [ "$$?" != "0" ]; then \
+		  exit 1; \
+		fi; \
+	done
+# The symlinks target is for my own private use.  It simply creates the object
+# directory as a symbolic link to a local disk instead of an NFS mounted one.
+symlinks:
+	-/bin/rm -f $(ARCH)objs
+	mkdir -p $(HOME)/sys/$(ARCH)/objs/most/src
+	ln -s $(HOME)/sys/$(ARCH)/objs/most/src $(ARCH)objs
+#---------------------------------------------------------------------------
+# Rules (automatically generated)
+#---------------------------------------------------------------------------

vendor/most-5.1.0/src/Makefile.w32

@@ -0,0 +1,90 @@
+# DJGPP and MINGW32 Makefile for most                               -*- sh -*-
+#---------------------------------------------------------------------------
+# 1. Choose a C compiler.  It must understand prototypes.
+#-----------------------------------------------------------------------------
+CC = gcc
+CFLAGS = -Wall -W -O2 -fno-strength-reduce
+LDFLAGS =
+
+# If using DJGPP, set ARCH to djg.  Use gw32 for MINGW32
+#ARCH=djg
+ARCH=gw32
+
+SLANGINC = ../../slang/src#               Location of slang.h
+SLANGLIB = $(SLANGINC)/$(ARCH)objs#       Location of libslang.a
+
+
+#-----------------------------------------------------------------------------
+# 4. Location where object files are placed 
+#-----------------------------------------------------------------------------
+OBJDIR = $(ARCH)objs
+SRCDIR = .
+
+#----------------------------------------------------------------------------
+# Nothing below here should require changing.
+#----------------------------------------------------------------------------
+OBJS =  $(OBJDIR)/buffer.o $(OBJDIR)/cmd.o $(OBJDIR)/display.o $(OBJDIR)/edit.o $(OBJDIR)/file.o $(OBJDIR)/help.o $(OBJDIR)/keym.o $(OBJDIR)/keyparse.o $(OBJDIR)/line.o $(OBJDIR)/main.o $(OBJDIR)/most.o $(OBJDIR)/search.o $(OBJDIR)/sysdep.o $(OBJDIR)/window.o
+OFILES =  buffer.o cmd.o display.o edit.o file.o help.o keym.o keyparse.o line.o main.o most.o search.o sysdep.o window.o
+
+EXEC = most
+CONFIG_H = config.h
+ALL_CFLAGS = $(CFLAGS) -I$(SLANGINC)
+EXECLIBS = -L../$(SLANGLIB) -lslang
+#
+COMPILE_CMD = $(CC) -c $(ALL_CFLAGS)
+#
+all: $(EXEC)
+$(EXEC): $(OBJDIR) $(CONFIG_H) $(OBJDIR)/$(EXEC)
+	@echo $(EXEC) created in $(OBJDIR)
+$(OBJDIR)/$(EXEC): $(OBJS)
+	cd $(OBJDIR); $(CC) *.o -o $(EXEC) $(LDFLAGS) $(EXECLIBS)
+#
+$(OBJDIR):
+	-mkdir $(OBJDIR)
+#
+$(CONFIG_H) : $(SRCDIR)/w32conf.h
+	cp $(SRCDIR)/w32conf.h $(CONFIG_H)
+clean:
+	rm -f $(OBJDIR)/* *~
+
+$(OBJDIR)/buffer.o : $(SRCDIR)/buffer.c $(DOT_O_DEPS) $(buffer_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/buffer.c -o $(OBJDIR)/buffer.o
+
+$(OBJDIR)/cmd.o : $(SRCDIR)/cmd.c $(DOT_O_DEPS) $(cmd_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/cmd.c -o $(OBJDIR)/cmd.o
+
+$(OBJDIR)/display.o : $(SRCDIR)/display.c $(DOT_O_DEPS) $(display_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/display.c -o $(OBJDIR)/display.o
+
+$(OBJDIR)/edit.o : $(SRCDIR)/edit.c $(DOT_O_DEPS) $(edit_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/edit.c -o $(OBJDIR)/edit.o
+
+$(OBJDIR)/file.o : $(SRCDIR)/file.c $(DOT_O_DEPS) $(file_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/file.c -o $(OBJDIR)/file.o
+
+$(OBJDIR)/help.o : $(SRCDIR)/help.c $(DOT_O_DEPS) $(help_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/help.c -o $(OBJDIR)/help.o
+
+$(OBJDIR)/keym.o : $(SRCDIR)/keym.c $(DOT_O_DEPS) $(keym_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/keym.c -o $(OBJDIR)/keym.o
+
+$(OBJDIR)/keyparse.o : $(SRCDIR)/keyparse.c $(DOT_O_DEPS) $(keyparse_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/keyparse.c -o $(OBJDIR)/keyparse.o
+
+$(OBJDIR)/line.o : $(SRCDIR)/line.c $(DOT_O_DEPS) $(line_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/line.c -o $(OBJDIR)/line.o
+
+$(OBJDIR)/main.o : $(SRCDIR)/main.c $(DOT_O_DEPS) $(main_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/main.c -o $(OBJDIR)/main.o
+
+$(OBJDIR)/most.o : $(SRCDIR)/most.c $(DOT_O_DEPS) $(most_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/most.c -o $(OBJDIR)/most.o
+
+$(OBJDIR)/search.o : $(SRCDIR)/search.c $(DOT_O_DEPS) $(search_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/search.c -o $(OBJDIR)/search.o
+
+$(OBJDIR)/sysdep.o : $(SRCDIR)/sysdep.c $(DOT_O_DEPS) $(sysdep_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/sysdep.c -o $(OBJDIR)/sysdep.o
+
+$(OBJDIR)/window.o : $(SRCDIR)/window.c $(DOT_O_DEPS) $(window_O_DEP)
+	$(COMPILE_CMD) $(SRCDIR)/window.c -o $(OBJDIR)/window.o

vendor/most-5.1.0/src/RTL.OPT

@@ -0,0 +1,2 @@
+SYS$LIBRARY:VAXCRTL/SHARE
+

vendor/most-5.1.0/src/VMSMAKE.COM

@@ -0,0 +1,65 @@
+$!  Most Makefile for VMS
+$!
+$! S-Lang Include directory (where slang.olb is located)
+$!
+$  Link_Flags = ""
+$  Link_Libs = ""
+$  slang_dir = "[-.-.slang.src]"
+$  slang_lib = ",''slang_dir'slang/LIBR"
+$  defs = ""
+$  include = slang_dir
+$!
+$! If compiling with GCC, uncomment next line
+$! goto has_gcc
+$ if (p1 .eqs. "GCC") then goto has_gcc
+$!
+$! There should be no need to change anything below here
+$!
+$ C_C = "cc/standard=vaxc"
+$ goto start
+$ has_gcc:
+$  C_C = "gcc/warnings/nocase_hack"
+$  link_libs = "GNU_CC:[000000]GCCLIB/LIB"
+$!
+$ start:
+$ copy mostconf.h config.h
+$ axp = 0
+$ axp = f$getsyi("HW_MODEL").ge.1024
+$ exec_name = "most.exe"
+$ files = "main,buffer,file,window,line,display,sysdep,"
+$ files = files + "keym,most,search,help,cmd,edit,keyparse"
+$!
+$  if (p1 .eqs. "LINK") then goto do_link
+$!
+$!  simple make
+$!
+$  if (defs .nes. "") then defs = "/define=(" + defs + ")"
+$  if (include .nes. "") then include = "/include=(" + include + ")"
+$  count = 0
+$  next_file:
+$    f = f$element(count, ",", files)
+$    count = count + 1
+$    if (f .eqs. ",") then goto do_link
+$    objf = f$search("''f'.obj")
+$    if (objf .eqs. "") then goto compile_it
+$    tobj = f$file_attr(objf, "RDT")
+$    tc  = f$file_attr("''f'.c", "RDT")
+$    if (f$cvtime(tc) .lts. f$cvtime(tobj)) then goto next_file
+$  compile_it:
+$  write sys$output "''C_C' ''defs' ''include' ''f'.c"
+$      'C_C' 'defs' 'include' 'f'.c
+$    goto next_file
+$  do_link:
+$  if axp
+$  then
+$    set verify
+$    link/exec=most.exe 'Link_Flags' 'files', 'slang_dir'slang/LIBR 'Link_Libs'
+$    set noverify
+$  else
+$    set verify
+$    link/exec=most.exe 'Link_Flags' 'files', 'slang_dir'slang/LIB 'Link_Libs',  -
+       sys$input/opt
+     SYS$LIBRARY:VAXCRTL/SHARE
+$    set noverify
+$  endif
+$exit

vendor/most-5.1.0/src/buffer.c

@@ -0,0 +1,579 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <string.h>
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "most.h"
+#include "buffer.h"
+#include "display.h"
+#include "window.h"
+#include "line.h"
+#include "file.h"
+
+int Most_W_Opt = 0;
+
+unsigned char *Most_Beg;             /* beginning of current buffer */
+unsigned char *Most_Eob;             /* end of current buffer */
+
+Most_Buffer_Type *Most_Buf;
+
+MOST_INT Most_Num_Lines;
+
+MOST_UINT Most_C_Offset;
+MOST_INT Most_C_Line;
+
+/* p>p0 assumed */
+#define BSKIP_CHAR(p,p0) \
+   (((Most_UTF8_Mode == 0) || (0 == ((*(p-1)) & 0x80))) \
+     ? ((p)--) \
+     : ((p) = SLutf8_bskip_char ((p0), (p))))
+
+static unsigned char *beg_of_line1(void)
+{
+   unsigned char *pos;
+   unsigned char *cpos;
+
+   cpos = pos = Most_Beg + Most_C_Offset;
+   if (pos == Most_Beg) return pos;
+
+   if (pos != Most_Eob)
+     {
+	if (*pos == '\n')
+	  {
+	     pos--;/* Skip back over the new-line. */
+	     while ((pos > Most_Beg)
+		    && (*pos != '\n'))
+	       pos--;
+
+	     if (*pos != '\n') return pos;
+	     if (pos + 1 != cpos)
+	       return pos + 1;
+	  }
+     }
+   else BSKIP_CHAR (pos, Most_Beg);
+
+   if (*pos != '\n')
+     {
+	while ((pos > Most_Beg)
+	       && (*pos != '\n'))
+	  pos--;
+	if (*pos != '\n') return Most_Beg;
+	return pos + 1;
+     }
+
+   /* from here on *pos == '\n' */
+
+   if (Most_S_Opt == 0) return pos + 1;
+
+   while ((pos > Most_Beg)
+	  && (*pos == '\n')) pos--;
+   pos += 2;
+   if (pos > cpos) pos = cpos;
+   return pos;
+}
+
+/* does not move point */
+static unsigned char *end_of_line1(void)
+{
+   register unsigned char *pos, *pmax;
+   int n, n2;
+
+   pos = Most_Beg + Most_C_Offset;
+   pmax = Most_Eob;
+   if (pos >= pmax)  return pmax;
+
+   /* find the first '\n'.  If we are wrapping lines, then do not go more
+    * than 3 times the display width.
+    */
+   if (Most_W_Opt && SLtt_Screen_Cols)
+     {
+	pmax = pos + 3 * SLtt_Screen_Cols;
+	if (pmax > Most_Eob)
+	  pmax = Most_Eob;
+     }
+
+   if (*pos != '\n')
+     {
+	/* This block is UTF-8 safe, because it only scans the buffer
+	 * for a new-line, and doesn't count characters.
+	 */
+	n = pmax - pos;
+	n2 = n % 8;
+	pmax = pos + (n - 8);
+
+	while (pos <= pmax)
+	  {
+	     if (*pos == '\n') return pos;
+	     if (*(pos + 1) == '\n') return pos + 1;
+	     if (*(pos + 2) == '\n') return pos + 2;
+	     if (*(pos + 3) == '\n') return pos + 3;
+	     if (*(pos + 4) == '\n') return pos + 4;
+	     if (*(pos + 5) == '\n') return pos + 5;
+	     if (*(pos + 6) == '\n') return pos + 6;
+	     if (*(pos + 7) == '\n') return pos + 7;
+	     pos += 8;
+	  }
+	pmax = pos + n2;
+	while ((pos < pmax) && (*pos != '\n')) pos++;
+	return(pos);
+     }
+
+   if (!Most_S_Opt) return (pos);
+  /* file */
+    /* if Most_Beg = "....abc\n\n\n\n\ndef..." then we are at some first \n.  We
+       want to return the last '\n' unless we wre at the first '\n'. */
+
+   /* Here we are on a \n and NOT at the end of the buffer */
+
+   if ((pos > Most_Beg) && (*(pos - 1) != '\n')) return (pos);
+
+   while ((pos < Most_Eob) && (*pos == '\n')) pos++;
+   if (pos == Most_Eob) return pos;
+   if (pos != Most_Beg) pos--;
+   return pos;
+   /* if (pos == Most_Eob) return (pos - 1);
+    return pos; */
+}
+
+unsigned char *most_beg_of_line(void)
+{
+   unsigned char *b;
+   unsigned int ncols;
+   unsigned char *e;
+
+   if (Most_W_Opt == 0) return beg_of_line1();
+
+   b = beg_of_line1 ();
+   e = end_of_line1 ();
+   ncols = SLtt_Screen_Cols;
+   if (Most_Show_Wrap_Marker)
+     ncols--;
+   while (1)
+     {
+	unsigned char *next_b = most_forward_columns (b, e, ncols);
+	if ((next_b == e) || (next_b == b))
+	  break;
+
+	if (next_b >= Most_Beg + Most_C_Offset)
+	  break;
+
+	 b = next_b;
+     }
+
+   return b;
+}
+
+static unsigned char *end_of_line (unsigned char *b)
+{
+   unsigned char *e, *b1;
+   int ncols;
+
+   e = end_of_line1();
+   if (Most_W_Opt == 0)
+     return e;
+
+   if (b == NULL) b = most_beg_of_line ();
+
+   ncols = SLtt_Screen_Cols;
+   if (Most_Show_Wrap_Marker)
+     ncols--;
+
+   b = most_forward_columns (b, e, ncols);
+
+   /* Do not wrap the line if the last character falls on the last column
+    * of the display.
+    */
+   if (Most_Show_Wrap_Marker)
+     {
+	if ((Most_UTF8_Mode == 0) || ((*b & 0x80) == 0))
+	  b1 = b + 1;
+	else
+	  b1 = SLutf8_skip_char (b, Most_Eob);
+
+	if ((b1 <= e)
+	    && (b1 < Most_Eob))
+	  {
+	     if (*b1 == '\n')
+	       b = b1;
+	     else if ((*b1 == 033) && (Most_V_Opt == 0))
+	       {
+		  unsigned char ch = 033;
+		  b1++;
+		  while ((ch == 033) && (b1 < e) && (b1 < Most_Eob)
+			 && (0 == most_parse_color_escape (&b1, e, NULL)))
+		    {
+		       b = b1;
+		       ch = *b1++;
+		    }
+	       }
+	  }
+     }
+
+   return b;
+}
+
+MOST_INT most_forward_line (MOST_INT save)
+{
+   MOST_INT m, n;
+   unsigned char *p;
+   unsigned char *pmax;
+
+   n = save;
+   pmax = Most_Eob;
+
+   if (n > 0)
+     {
+	if (Most_B_Opt)
+	  {
+	     m = (Most_Eob - (Most_Beg + Most_C_Offset)) / 16;
+	     if (n > m) n = m;
+	     Most_C_Offset += n * 16;
+	     Most_C_Line += n;
+	     return n;
+	  }
+
+	p = NULL;
+	while (n--)
+	  {
+	     p = end_of_line (p);
+	     Most_C_Offset = p - Most_Beg;
+	     if (p == Most_Eob) return (save - (n + 1));
+	     Most_C_Line++; Most_C_Offset++;
+
+	     if (Most_Selective_Display)
+	       {
+		  /* Skip past lines with too much indentation to the start
+		   * of a valid one.
+		   */
+		  p = Most_Beg + Most_C_Offset;
+		  while (p < pmax)
+		    {
+		       while ((p < pmax) && (*p <= ' ')) p++;
+		       if (most_apparant_distance(p) < Most_Selective_Display)
+		       	 break;
+		       Most_C_Offset = (p - Most_Beg);
+		       p = end_of_line (p);
+		       if (p < pmax) p++;
+		    }
+		  Most_C_Offset = (p - Most_Beg);
+	       }
+	     p = Most_Beg + Most_C_Offset;
+	  }
+     }
+   else
+     {
+	if (Most_B_Opt)
+	  {
+	     m = Most_C_Offset / 16;
+	     if (n < m) n = m;
+	     Most_C_Offset += n * 16;
+	     Most_C_Line += n;
+	     return n;
+	  }
+	else while (n++)
+	  {
+	     p = most_beg_of_line();
+	     Most_C_Offset = (p - Most_Beg);
+	     if (Most_C_Offset == 0) return (n - (save + 1));
+	     Most_C_Line--;
+	     Most_C_Offset--;
+
+	     if (Most_Selective_Display)
+	       {
+		  /* Skip past lines with too much indentation to the start
+		   * of a valid one.
+		   */
+		  p = Most_Beg + Most_C_Offset;
+		  while (p > Most_Beg)
+		    {
+		       /* skip all blank lines */
+		       while ((p > Most_Beg) && (*p <= ' ')) p--;
+		       pmax = p;
+		       Most_C_Offset = pmax - Most_Beg;
+		       p = most_beg_of_line ();
+		       Most_C_Offset = p - Most_Beg;
+		       while ((p < pmax) && (*p <= ' ')) p++;
+		       if (most_apparant_distance(p) < Most_Selective_Display)
+		       	 break;
+		       Most_C_Offset = p - Most_Beg;
+		       p = most_beg_of_line ();
+		       if (p > Most_Beg) p--;
+		       Most_C_Offset = p - Most_Beg;
+		    }
+		  Most_C_Offset = p - Most_Beg;
+	       }
+	  }
+     }
+   return(save);
+}
+
+/* Count lines in the region.  A half line counts as 1 */
+MOST_INT most_count_lines(unsigned char *beg, unsigned char *end)
+{
+   MOST_INT save_line, n;
+   unsigned char *save_beg, *save_eob;
+   MOST_UINT save_pos;
+   int dn = 1000;
+
+   if (Most_B_Opt) return(1 + (MOST_INT)(end - beg) / 16);
+
+   save_line = Most_C_Line; save_beg = Most_Beg; save_eob = Most_Eob;
+   save_pos = Most_C_Offset;
+
+   Most_Beg = beg; Most_Eob = end;
+   Most_C_Offset = 0;
+
+   n = 1;
+   while((dn = most_forward_line(dn)) != 0) n += dn;
+
+   Most_C_Offset = save_pos;
+   Most_Eob = save_eob;
+   Most_Beg = save_beg;
+   Most_C_Line = save_line;
+   return(n);
+}
+
+void most_goto_line (MOST_INT line)
+{
+   MOST_INT dif_c, dif_b, dif_t;
+
+   if (line < 1) line = 1;
+   most_read_to_line(line);
+   if (line > Most_Num_Lines) line = Most_Num_Lines;
+
+   if (Most_B_Opt)
+     {
+	Most_C_Offset = (16 * (line - 1));
+	Most_C_Line = line;
+	return;
+     }
+
+   dif_c = line - Most_C_Line;
+   dif_b = line - Most_Num_Lines;
+   dif_t = line - 1;
+
+    /* 4 possibilites */
+   if (dif_c <= 0)
+     {
+	if (dif_t < -dif_c) /* go from top */
+	  {
+	     Most_C_Line = 1;
+	     Most_C_Offset = 0;
+	     (void) most_forward_line(dif_t);
+	  }
+	else  /* from curr back */
+	  {
+	     (void) most_forward_line(dif_c);
+	  }
+     }
+   else if (dif_c > 0)
+     {
+	if ((dif_c + dif_b) < 0) /* go from curr */
+	  {
+	     (void) most_forward_line(dif_c);
+	  }
+	else
+	  {
+	     Most_C_Line = Most_Num_Lines;
+	     Most_C_Offset = (Most_Eob - Most_Beg);
+	     (void) most_forward_line(dif_b);
+	  }
+     }
+}
+
+/* return line the point is on without the final '\n's  */
+int most_extract_line(unsigned char **beg, unsigned char **end)
+{
+   *beg = most_beg_of_line();
+   *end = end_of_line (*beg);
+
+   return 0;
+}
+
+MOST_INT most_what_line(unsigned char *pos)
+{
+   unsigned int save_pos;
+   MOST_INT save_line, dir;
+   MOST_INT dif_c, dif_b,dif_t;
+   int ret;
+
+   if (Most_B_Opt)
+     {
+	return (1 + (pos - Most_Beg)/16);
+     }
+
+   if (Most_Selective_Display)
+     {
+        return most_count_lines (Most_Beg, pos);
+     }
+
+   save_pos = Most_C_Offset;
+   save_line = Most_C_Line;
+
+   dif_c = pos - (Most_Beg + Most_C_Offset);
+   dif_b = pos - Most_Eob;
+   dif_t = pos - Most_Beg;
+
+    /* 4 possibilites */
+   if (dif_c <= 0)
+     {
+	if (dif_t < -dif_c) /* go from top */
+	  {
+	     Most_C_Line = 1;
+	     Most_C_Offset = 0;
+	     dir = 1;
+	  }
+	else  /* from curr back */
+	  {
+	     dir = -1;
+	  }
+     }
+   else /*  (dif_c > 0) */
+     {
+	if ((dif_c + dif_b) < 0) /* go from curr */
+	  {
+	     dir = 1;
+	  }
+	else
+	  {
+	     Most_C_Line = Most_Num_Lines;
+	     Most_C_Offset = Most_Eob - Most_Beg;
+	     dir = -1;
+	  }
+     }
+   if (dir == 1)
+     {
+	while (1)
+	  {
+	     unsigned char *cpos;
+
+	     cpos = end_of_line (NULL);
+	     Most_C_Offset = cpos - Most_Beg;
+
+	     if (cpos >= pos)
+	       break;
+
+	     Most_C_Offset++;
+	     Most_C_Line++;
+	  }
+     }
+   else
+     {
+	while (1)
+	  {
+	     unsigned char *cpos;
+
+	     cpos = most_beg_of_line ();
+	     Most_C_Offset = cpos - Most_Beg;
+	     if (pos >= cpos)
+	       break;
+	     Most_C_Line--;
+	     Most_C_Offset--;
+	  }
+     }
+
+   ret = Most_C_Line;
+   Most_C_Offset = save_pos;
+   Most_C_Line = save_line;
+   return(ret);
+}
+
+/* given a buffer position, find the line and column */
+void most_find_row_column(unsigned char *pos, MOST_INT *r, MOST_INT *c)
+{
+   unsigned int save_offset;
+   MOST_INT save_line;
+
+   if (pos <= Most_Beg)
+     {
+	*r = 1;
+	*c = 1;
+	return;
+     }
+
+   save_line = Most_C_Line;
+   save_offset = Most_C_Offset;
+   *r = most_what_line(pos);
+
+   if (Most_B_Opt)
+     {
+	*c = (int) (pos - Most_Beg) - (*r - 1) * 16 + 1;
+	return;
+     }
+   Most_C_Line = *r;
+   Most_C_Offset = pos - Most_Beg;
+
+   /* Now we have found the line it is on so.... */
+   (void) most_beg_of_line();
+   *c = 1 + most_apparant_distance (pos);
+
+   Most_C_Line = save_line;
+   Most_C_Offset = save_offset;
+}
+
+Most_Buffer_Type *most_switch_to_buffer(Most_Buffer_Type *nnew)
+{
+   Most_Buffer_Type *old;
+   old = Most_Buf;
+   Most_Buf = nnew;
+   Most_Beg = Most_Buf->beg;
+   Most_Eob = Most_Buf->end;
+   return old;
+}
+
+Most_Buffer_Type *most_create_buffer(char *file)
+{
+   Most_Buffer_Type *buf;
+
+   buf = (Most_Buffer_Type *) MOSTMALLOC(sizeof(Most_Buffer_Type));
+   memset ((char *) buf, 0, sizeof(Most_Buffer_Type));
+   strcpy(buf->file,file);
+   return(buf);
+}
+
+unsigned char *most_malloc(unsigned int n)
+{
+   unsigned char *b = (unsigned char *) SLMALLOC(n);
+   if (b == NULL)
+     {
+	most_exit_error("malloc: Memory Allocation Error.");
+     }
+   return b;
+}
+
+unsigned char *most_realloc(unsigned char *p, unsigned int n)
+{
+   unsigned char *b = (unsigned char *) SLREALLOC(p, n);
+   if (b == NULL)
+     {
+	most_exit_error("malloc: Memory Allocation Error.");
+     }
+   return b;
+}

vendor/most-5.1.0/src/buffer.h

@@ -0,0 +1,81 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#ifndef _DAVIS_BUFFER_H_
+# define _DAVIS_BUFFER_H_
+
+typedef struct
+{
+   char file[MAX_PATHLEN];            /* filename */
+   unsigned char *beg;       /* beginning of buffer */
+   unsigned char *end;       /* end of buffer */
+   int mark;                 /* marked line in buffer */
+   unsigned int flags;
+   int fd;			       /* file descriptor--- -1 if closed */
+   FILE *fp;			       /* use pclose when EOF is reached */
+   int size;
+# ifdef VMS
+   int rec;			       /* record size for reads */
+# endif
+# if MOST_HAS_MMAP
+   int is_mmaped;
+   unsigned int mmap_size;
+# endif
+}
+Most_Buffer_Type;
+
+extern Most_Buffer_Type *Most_Buf;
+extern unsigned char *Most_Beg, *Most_Eob;
+extern MOST_INT Most_Num_Lines;
+
+/* Offset of current position from beginning of buffer */
+extern MOST_UINT Most_C_Offset;
+
+extern MOST_INT Most_C_Line;
+/*
+ *  Current line number.  If at the beginning of the buffer, it is 1.  If
+ *  we are at the last point of the buffer it is the number of lines.
+ */
+
+/* This routine does not move the point */
+extern unsigned char *most_beg_of_line(void);
+
+extern MOST_INT most_forward_line(MOST_INT);
+/* This routine moves the point forward n lines. n can be negative.
+   It returns the number moved. */
+
+extern void most_goto_line (MOST_INT);
+/* Move the point somewhere on the nth line of the buffer returning
+   C_POS */
+
+extern MOST_INT most_what_line (unsigned char *);
+/* return the line number of position 'argument'. Does not move point */
+
+/* count the number of lines in the region delimited by beg and end.
+   Counts lines from beg up to end but does not count end.
+   Does not move point. */
+extern MOST_INT most_count_lines(unsigned char *, unsigned char *);
+extern int most_extract_line(unsigned char **, unsigned char **);
+
+extern Most_Buffer_Type *most_switch_to_buffer(Most_Buffer_Type *);
+extern Most_Buffer_Type *most_create_buffer(char *);
+extern void most_find_row_column(unsigned char *, MOST_INT *, MOST_INT *);
+
+#endif
+

vendor/most-5.1.0/src/chkslang.c

@@ -0,0 +1,89 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+/* It is too bad that this cannot be done at the preprocessor level.
+ * Unfortunately, C is not completely portable yet.  Basically the #error
+ * directive is the problem.
+ */
+#include "config.h"
+
+#include <stdio.h>
+#ifdef VMS
+# include <ssdef.h>
+#endif
+#include <slang.h>
+#include "jdmacros.h"
+
+static char *make_version (unsigned int v)
+{
+   static char v_string[16];
+   unsigned int a, b, c;
+
+   a = v/10000;
+   b = (v - a * 10000) / 100;
+   c = v - (a * 10000) - (b * 100);
+   sprintf (v_string, "%u.%u.%u", a, b, c);
+   return v_string;
+}
+
+int main (int argc, char **argv)
+{
+   unsigned int min_version, sl_version;
+   unsigned int sug_version;
+   int ret;
+
+   if ((argc < 3) || (argc > 4))
+     {
+	fprintf (stderr, "Usage: %s <PGM> <SLANG-VERSION> <SUGG VERSION>\n", argv[0]);
+	return 1;
+     }
+#ifndef SLANG_VERSION
+   sl_version = 0;
+#else
+   sl_version = SLANG_VERSION;
+#endif
+
+   sscanf (argv[2], "%u", &min_version);
+   if (argc == 4) sscanf (argv[3], "%u", &sug_version);
+   else sug_version = sl_version;
+
+   ret = 0;
+   if (sl_version < min_version)
+     {
+	fprintf (stderr, "This version of %s requires slang version %s.\n",
+		 argv[1], make_version(min_version));
+#ifdef VMS
+	ret = SS$_ABORT;
+#else
+	ret = 1;
+#endif
+     }
+
+   if (sl_version < sug_version)
+     {
+	fprintf (stderr, "Your slang version is %s.\n", make_version(sl_version));
+	fprintf (stderr, "To fully utilize this program, you should upgrade the slang library to\n");
+	fprintf (stderr, "  version %s\n", make_version(sug_version));
+	fprintf (stderr, "This library is available via anonymous ftp from\n\
+space.mit.edu in pub/davis/slang.\n");
+     }
+
+   return ret;
+}
+

vendor/most-5.1.0/src/cmd.c

@@ -0,0 +1,287 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "most.h"
+#include "search.h"
+#include "window.h"
+#include "file.h"
+#include "keym.h"
+#include "display.h"
+#include "sysdep.h"
+
+static char getkey_nocase (void)
+{
+   char ch = most_getkey ();
+   if ((ch >= 'a') && (ch <= 'z')) ch = ch - ' ';
+
+   SLang_flush_input ();
+
+   return ch;
+}
+
+void most_next_file (void)
+{
+   static int next = 1;
+   char *msg = NULL;
+
+   if (!Most_Num_Files) msg = "File ring is empty.";
+   else if (Most_Num_Files == 1) msg = "There is only one file!";
+   else
+     {
+	most_do_next_file(&next);
+     }
+   if (msg != NULL) most_message (msg, 1);
+}
+
+void most_toggle_case (void)
+{
+   char *msg;
+   Most_Case_Sensitive = !Most_Case_Sensitive;
+   if (Most_Case_Sensitive)
+     msg = "Searches now respect case.";
+   else
+     msg = "Searches nolonger respect case.";
+
+   most_message (msg, 0);
+}
+
+void most_toggle_research (void)
+{
+   char *msg;
+
+   Most_Do_Regexp_Search = !Most_Do_Regexp_Search;
+
+   if (Most_Do_Regexp_Search)
+     msg = "Regexp search enabled";
+   else
+     msg = "Regexp search disabled";
+
+   most_message (msg, 0);
+}
+
+void most_delete_file_cmd (void)
+{
+   int bell = 0;
+   char ch;
+   char *msg;
+
+   if ('*' == *Most_Buf->file) return;
+
+   if (Most_Secure_Mode) Most_D_Opt = 0;
+   if (Most_D_Opt == 0) return;
+
+   most_select_minibuffer ();
+   SLsmg_printf ("Delete %s? [n]", Most_Buf->file);
+   SLsmg_refresh ();
+
+   ch = getkey_nocase ();
+   if (ch == 'Y')
+     {
+	if (!most_delete_file(Most_Buf->file))
+	  {
+	     msg = "File could not be deleted.";
+	     bell = 1;
+	  }
+	else
+	  msg = "File deleted.";
+     }
+   else
+     msg = "File not deleted.";
+   most_exit_minibuffer ();
+   most_message(msg, bell);
+}
+
+void most_toggle_options (void)
+{
+   char ch;
+   char *msg = NULL;
+   int n;
+   unsigned int save;
+
+   most_select_minibuffer();
+   SLsmg_write_string("Toggle: b(binary) t(tab) v(verbose) w(wrap) d(selective display) ");
+   SLsmg_gotorc (SLtt_Screen_Rows - 1, 0);
+   SLsmg_refresh ();
+
+   ch = getkey_nocase();
+   switch (ch)
+     {
+      default:
+	msg = "\007Invalid option!";
+	break;
+
+      case 'B':
+	Most_B_Opt = !Most_B_Opt;
+	Most_Num_Lines = most_count_lines(Most_Beg,Most_Eob);
+	break;
+
+      case 'D':
+	if (Most_W_Opt)
+	  {
+	     msg = "\007Selective Display illegal in wrap mode.";
+	     break;
+	  }
+
+	if (Most_Digit_Arg == NULL)
+	  {
+	     msg = "Selective Display off.  Prefix with integer to set.";
+	     n = 0;
+	  }
+	else
+	  {
+	     msg = "Selective Display is set.";
+	     n = abs( *Most_Digit_Arg );
+	  }
+
+	if (Most_Selective_Display != n)
+	  {
+	     Most_Selective_Display = n;
+	     Most_Num_Lines = most_count_lines(Most_Beg,Most_Eob);
+	     most_forward_line (-1);
+
+	     /* This is duplicated below */
+	     /* Most_C_Line = most_count_lines (Most_Beg, Most_C_Pos); */
+	  }
+
+	break;
+
+      case 'S':
+
+	if (Most_B_Opt) msg = "\007Squeezing not available in Binary mode.";
+	else
+	  {
+	     Most_S_Opt = !Most_S_Opt;
+	     Most_Num_Lines = most_count_lines(Most_Beg,Most_Eob);
+	     if (Most_S_Opt) msg = "Lines are now squeezed.";
+	     else msg = "Line squeezing is turned off";
+	  }
+
+	break;
+
+      case 'W':
+	if (Most_Selective_Display)
+	  {
+	     msg = "\007Wrap mode cannot be enabled while selective display is on.";
+	     break;
+	  }
+	Most_W_Opt = !Most_W_Opt;
+	Most_Num_Lines = most_count_lines(Most_Beg, Most_Eob);
+	if (Most_W_Opt) msg = "Wrap turned on.";
+	else msg = "Wrap turned off.";
+	break;
+
+      case 'V':
+	Most_V_Opt = !Most_V_Opt;
+	if (Most_V_Opt) msg = "Control char display is turned on.";
+	else msg = "Control char display is turned off.";
+	break;
+
+      case 'T':
+	if (Most_Digit_Arg == NULL) Most_T_Opt = !Most_T_Opt;
+	else
+	  {
+	     Most_Tab_Width = abs( *Most_Digit_Arg );
+	     if (Most_Tab_Width == 0) Most_T_Opt  = 1;
+	     else Most_T_Opt = 0;
+	  }
+	if (Most_T_Opt) msg = "Tabs are nolonger expanded.";
+	else msg = "Tabs are now expanded.";
+	break;
+     }
+
+   SLsmg_erase_eol ();
+   most_exit_minibuffer();
+
+   if ((msg != NULL) && (*msg == '\007'))
+     {
+	most_message (msg + 1, 1);
+	return;
+     }
+
+   if (!Most_Num_Lines) Most_Num_Lines = 1;
+   most_save_win_flags(Most_Win);
+
+   save = Most_C_Offset;
+   Most_C_Offset = 0;
+   Most_C_Line = 1;
+   Most_C_Line = most_what_line (Most_Beg + save);
+   Most_C_Offset = save;
+   Most_Win->beg_line = Most_C_Line;
+   most_redraw_window();
+   most_update_status();
+
+   if (msg != NULL) most_message (msg, 0);
+}
+
+/* ----------------------------------------------------------------------*/
+
+void most_extended_key_cmd (void)
+{
+   char ch;
+
+   if (Most_Secure_Mode) Most_D_Opt = 0;
+
+   most_select_minibuffer();
+   SLsmg_write_string ("Choose: N (next file), C(toggle case), R(toggle re-search) O(toggle options)");
+   if (Most_D_Opt) SLsmg_write_string (" ,D (delete file)");
+   SLsmg_gotorc (SLtt_Screen_Rows - 1, 0);
+   SLsmg_refresh ();
+   ch = getkey_nocase();
+   SLsmg_erase_eol ();
+
+   most_exit_minibuffer ();
+
+   switch (ch)
+     {
+      case 'N':
+	most_next_file ();
+	break;
+      case 'C':
+	most_toggle_case ();
+	break;
+      case 'R':
+	most_toggle_research ();
+	break;
+      case 'O':
+	most_toggle_options ();
+	break;
+      case 'D':
+	if (Most_D_Opt)
+	  {
+	     most_delete_file_cmd ();
+	     break;
+	  }
+	/* drop */
+      default:
+	most_message ("Invalid option.", 1);
+     }
+}
+

vendor/most-5.1.0/src/config.h

@@ -0,0 +1,107 @@
+/* src/sysconf.h.  Generated from config.hin by configure.  */
+/* -*- C -*- */
+
+/* Note: this is for authentic unix systems only.  
+ * See mostconf.h for other systems.
+ */
+
+#ifndef MOST_CONFIG_H
+#define MOST_CONFIG_H
+
+/* Define if you want the MMAP support */
+#define USE_MMAP 1
+
+/* define if you have long long type */
+#define HAVE_LONG_LONG 1
+
+/* #undef off_t */
+/* #undef size_t */
+#define SIZEOF_OFF_T 8
+#define SIZEOF_SHORT 2
+#define SIZEOF_INT 4
+#define SIZEOF_LONG 8
+#define SIZEOF_FLOAT 4
+#define SIZEOF_DOUBLE 8
+#define SIZEOF_LONG_LONG 8
+
+/* The following set defines may be necessary to activate long file support */
+/* #undef _FILE_OFFSET_BITS */
+/* #undef _LARGE_FILES */
+/* #undef _LARGEFILE_SOURCE */
+
+/* define if you have stdlib.h */
+#define HAVE_STDLIB_H 1
+
+/* define if you have unistd.h */
+#define HAVE_UNISTD_H 1
+
+/* define if you have memory.h */
+#define HAVE_MEMORY_H 1
+
+/* define if you have malloc.h */
+#define HAVE_MALLOC_H 1
+
+/* define if you have memset */
+#define HAVE_MEMSET 1
+
+/* define if you have memcpy */
+#define HAVE_MEMCPY 1
+
+/* define if you have this. */
+#define HAVE_GETCWD 1
+
+#define HAVE_MMAP 1
+
+#define HAVE_TCGETPGRP 1
+#define HAVE_GETPGRP 1
+
+#define HAVE_DIRENT_H 1
+/* #undef HAVE_SYS_NDIR_H */
+/* #undef HAVE_SYS_DIR_H */
+/* #undef HAVE_NDIR_H */
+
+#define HAVE_SNPRINTF 1
+#define HAVE_SYS_MMAN_H 1
+
+/* #undef mode_t */
+/* #undef pid_t */
+/* #undef uid_t */
+/* #undef pid_t */
+
+
+#ifdef _AIX
+# ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+# endif
+# ifndef _ALL_SOURCE
+#  define _ALL_SOURCE 1
+# endif
+/* This may generate warnings but the fact is that without it, xlc will 
+ * INCORRECTLY inline many str* functions. */
+/* # undef __STR__ */
+#endif
+
+#define MAX_PATHLEN 1024
+#if defined(USE_MMAP) && defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H)
+# define MOST_HAS_MMAP	1
+#else
+# define MOST_HAS_MMAP	0
+#endif
+
+#if defined(HAVE_LONG_LONG) && (SIZEOF_OFF_T == SIZEOF_LONG_LONG) && (SIZEOF_LONG_LONG > SIZEOF_LONG)
+typedef long long MOST_INT;
+typedef unsigned long long MOST_UINT;
+# define MOST_INT_D_FMT "%lld"
+#else
+# if (SIZEOF_OFF_T == SIZEOF_INT)
+typedef int MOST_INT;
+typedef unsigned int MOST_UINT;
+#  define MOST_INT_D_FMT "%d"
+# else
+typedef long MOST_INT;
+typedef unsigned long MOST_UINT;
+#  define MOST_INT_D_FMT "%ld"
+# endif
+#endif
+
+#endif /* MOST_CONFIG_H */

vendor/most-5.1.0/src/config.hin

@@ -0,0 +1,106 @@
+/* -*- C -*- */
+
+/* Note: this is for authentic unix systems only.  
+ * See mostconf.h for other systems.
+ */
+
+#ifndef MOST_CONFIG_H
+#define MOST_CONFIG_H
+
+/* Define if you want the MMAP support */
+#undef USE_MMAP
+
+/* define if you have long long type */
+#undef HAVE_LONG_LONG
+
+#undef off_t
+#undef size_t
+#undef SIZEOF_OFF_T
+#undef SIZEOF_SHORT
+#undef SIZEOF_INT
+#undef SIZEOF_LONG
+#undef SIZEOF_FLOAT
+#undef SIZEOF_DOUBLE
+#undef SIZEOF_LONG_LONG
+
+/* The following set defines may be necessary to activate long file support */
+#undef _FILE_OFFSET_BITS
+#undef _LARGE_FILES
+#undef _LARGEFILE_SOURCE
+
+/* define if you have stdlib.h */
+#undef HAVE_STDLIB_H
+
+/* define if you have unistd.h */
+#undef HAVE_UNISTD_H
+
+/* define if you have memory.h */
+#undef HAVE_MEMORY_H
+
+/* define if you have malloc.h */
+#undef HAVE_MALLOC_H
+
+/* define if you have memset */
+#undef HAVE_MEMSET
+
+/* define if you have memcpy */
+#undef HAVE_MEMCPY
+
+/* define if you have this. */
+#undef HAVE_GETCWD
+
+#undef HAVE_MMAP
+
+#undef HAVE_TCGETPGRP
+#undef HAVE_GETPGRP
+
+#undef HAVE_DIRENT_H
+#undef HAVE_SYS_NDIR_H
+#undef HAVE_SYS_DIR_H
+#undef HAVE_NDIR_H
+
+#undef HAVE_SNPRINTF
+#undef HAVE_SYS_MMAN_H
+
+#undef mode_t
+#undef pid_t
+#undef uid_t
+#undef pid_t
+
+
+#ifdef _AIX
+# ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+# endif
+# ifndef _ALL_SOURCE
+#  define _ALL_SOURCE
+# endif
+/* This may generate warnings but the fact is that without it, xlc will 
+ * INCORRECTLY inline many str* functions. */
+# undef __STR__
+#endif
+
+#define MAX_PATHLEN 1024
+#if defined(USE_MMAP) && defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H)
+# define MOST_HAS_MMAP	1
+#else
+# define MOST_HAS_MMAP	0
+#endif
+
+#if defined(HAVE_LONG_LONG) && (SIZEOF_OFF_T == SIZEOF_LONG_LONG) && (SIZEOF_LONG_LONG > SIZEOF_LONG)
+typedef long long MOST_INT;
+typedef unsigned long long MOST_UINT;
+# define MOST_INT_D_FMT "%lld"
+#else
+# if (SIZEOF_OFF_T == SIZEOF_INT)
+typedef int MOST_INT;
+typedef unsigned int MOST_UINT;
+#  define MOST_INT_D_FMT "%d"
+# else
+typedef long MOST_INT;
+typedef unsigned long MOST_UINT;
+#  define MOST_INT_D_FMT "%ld"
+# endif
+#endif
+
+#endif /* MOST_CONFIG_H */

vendor/most-5.1.0/src/display.c

@@ -0,0 +1,67 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include <stdio.h>
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "display.h"
+
+void most_narrow_width(void)
+{
+   SLsmg_refresh ();
+   SLtt_write_string ("\033[?3l");
+}
+
+void most_wide_width(void)
+{
+   SLsmg_refresh ();
+   SLtt_write_string ("\033[?3h");
+}
+
+void most_tt_set_color (int color)
+{
+   SLsmg_set_color (color);
+}
+
+void most_tt_bold_video (void)
+{
+   SLsmg_set_color (MOST_BOLD_COLOR);
+}
+
+void most_tt_normal_video (void)
+{
+   SLsmg_set_color (0);
+}
+
+void most_tt_underline_video (void)
+{
+   SLsmg_set_color (MOST_ULINE_COLOR);
+}
+
+void most_tt_reverse_video (void)
+{
+   SLsmg_set_color (MOST_STATUS_COLOR);
+}
+
+void most_goto_rc (int r, int c)
+{
+   SLsmg_gotorc (r - 1, c - 1);
+}
+

vendor/most-5.1.0/src/display.h

@@ -0,0 +1,38 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* These numbers match ANSI escape sequences of form ESC [ x m */
+#define MOST_BOLD_COLOR		1
+#define MOST_ULINE_COLOR	4
+#define MOST_STATUS_COLOR	7
+
+#define MOST_EMBEDDED_COLOR_OFFSET 32
+
+extern void most_tt_set_color (int color);
+extern void most_tt_reverse_video(void);
+extern void most_tt_bold_video(void);
+extern void most_tt_underline_video(void);
+extern void most_tt_normal_video(void);
+extern void most_wide_width(void);
+extern void most_narrow_width(void);
+extern void most_enable_cursor_keys(void);
+
+extern void most_goto_rc (int, int);
+extern void most_setup_colors (void);

vendor/most-5.1.0/src/edit.c

@@ -0,0 +1,277 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+/* editor functions */
+#include <stdio.h>
+#include <string.h>
+
+#ifdef VMS
+# include <ssdef.h>
+# include <rmsdef.h>
+# include <dvidef.h>
+# include <jpidef.h>
+/* #include <libdef.h> */
+# include <descrip.h>
+# include <iodef.h>
+# include <ttdef.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+
+#include "most.h"
+#include "edit.h"
+#include "window.h"
+#include "file.h"
+#include "sysdep.h"
+
+/* quote_char is one of: 0, ", or '.  It represents the character
+ * that will be used to quote the filename.
+ */
+char *most_escape_filename (char *file, char quote_char)
+{
+   char *efile, *e;
+
+   if (NULL == (efile = SLmalloc (5 + 2*strlen(file))))
+     return NULL;
+
+   e = efile;
+
+#ifndef VMS
+   if (quote_char == 0)
+     {
+	/* No quote char was used for the filename command.  Add it here. */
+	*e++ = '"';
+     }
+   else if (quote_char == '\'')
+     {
+	/* Suppose the file is Bob's Notes.  With ' as the quote, when passed
+	 * to the shell, it would look like 'Bob's Notes'.  Unfortunately, this
+	 * would produce an unmatched single quote when processed by the shell.
+	 * So, the following escaped form will be used:
+	 *    ''"Bob's Notes"''
+	 */
+	*e++ = '\'';
+	*e++ = '"';
+     }
+#endif
+
+   while (1)
+     {
+	char ch = *file++;
+	switch (ch)
+	  {
+	   case 0:
+#ifndef VMS
+	     if (quote_char == 0)
+	       *e++ = '"';
+	     else if (quote_char == '\'')
+	       {
+		  *e++ = '"';
+		  *e++ = '\'';
+	       }
+#endif
+	     *e = 0;
+	     return efile;
+#ifndef VMS
+	     /* For a double-quoted string, only the following characters
+	      * may be escaped with a backslash.  Unfortunately, escaping
+	      * others such as &, *, |, etc will not work.
+	      */
+	   case '\\': case '$': case '"': case '`': case '\n':
+	     *e++ = '\\';
+	     *e++ = ch;
+	     break;
+#endif
+	   default:
+	     *e++ = ch;
+	  }
+     }
+}
+
+static int create_edit_command (char *edit, char *cmd, unsigned int sizeof_cmd, char *file)
+{
+   int d, s;
+   char ch, *p = edit;
+   char *efile;
+   char quote_char = '"';
+   /* Look for %d and %s */
+
+   d = s = 0;
+
+   while (0 != (ch = *p++))
+     {
+	char q = 0;
+
+	if (((ch == '\'') || (ch == '"'))
+	    && (*p == '%'))
+	  {
+	     q = ch;
+	     ch = '%';
+	     p++;
+	  }
+	if (ch != '%') continue;
+
+	ch = *p++;
+	if (!d && (ch == 'd'))
+	  {
+	     if (s == 0) d = 1; else d = 2;
+	  }
+	else if (!s && (ch == 's'))
+	  {
+	     if (d == 0) s = 1; else s = 2;
+	     if (q && (q != *p))
+	       {
+		  most_message ("Unmatched quote character in editor definition", 1);
+		  return -1;
+	       }
+	     quote_char = q;
+	  }
+	else
+	  {
+	     most_message ("Invalid editor definition.", 1);
+	     return -1;
+	  }
+     }
+
+   if (NULL == (efile = most_escape_filename (file, quote_char)))
+     return -1;
+
+   if ((d == 0) && (s == 0))
+     {
+	/* No %d, %s */
+	_pSLsnprintf (cmd, sizeof_cmd, "%s \"%s\"", edit, efile);
+	SLfree (efile);
+	return 0;
+     }
+
+   if (d == 0)
+     {
+	(void) _pSLsnprintf (cmd, sizeof_cmd, edit, efile);
+	SLfree (efile);
+	return 0;
+     }
+
+   if (d && s)
+     {
+	if (d == 1)
+	  (void) _pSLsnprintf (cmd, sizeof_cmd, edit, Most_C_Line, efile);
+	else
+	  (void) _pSLsnprintf (cmd, sizeof_cmd, edit, efile, Most_C_Line);
+
+	SLfree (efile);
+	return 0;
+     }
+
+   most_message ("Unsupported Editor definition", 1);
+   SLfree (efile);
+   return -1;
+}
+
+#ifdef VMS
+int call_edt_tpu(int tpu, char *file)
+{
+   char the_file[MAX_PATHLEN], *strp;
+   extern void edt$edit();
+   extern void tpu$tpu();
+   struct dsc$descriptor_s  file_desc;
+
+   if (tpu == 1)  /* tpu */
+     _pSLsnprintf (the_file, sizeof(the_file), "TPU /START=%d ", Most_C_Line);
+   else
+     the_file[0] = '\0';
+
+   strcat(the_file, file);
+
+   /*  lose the version number */
+   strp = the_file;
+   while((*strp != '\0') && (*strp != ';')) strp++;
+   *strp = '\0';
+
+   file_desc.dsc$w_length = strlen(the_file);
+   file_desc.dsc$a_pointer = the_file;
+   file_desc.dsc$b_class = DSC$K_CLASS_S; /* scalar, string type */
+   file_desc.dsc$b_dtype = DSC$K_DTYPE_T; /* ascii string */
+
+   if (tpu == 1)
+     tpu$tpu(&file_desc);
+   else
+     edt$edit(&file_desc);
+
+   return 1;
+}
+#endif
+
+void most_edit_cmd(void)
+{
+   char *editor;
+   char cmd[2*MAX_PATHLEN + 30];
+#ifdef VMS
+   int tpu = -1;
+#endif
+   char *file;
+
+   file = Most_Buf->file;
+
+   if ((0 == *file) || ('*' == *file))
+     return;
+
+   if (Most_Secure_Mode)
+     {
+	most_message ("Editing not permitted in secure mode.", 1);
+	return;
+     }
+
+   if ((NULL == (editor = getenv("MOST_EDITOR")))
+       && (NULL == (editor = getenv("SLANG_EDITOR")))
+       && (NULL == (editor = getenv("EDITOR"))))
+#ifdef VMS
+     editor = "EDT";
+#else
+   editor = "vi";
+#endif
+
+#ifdef VMS
+   if (!strcmp(editor,"EDT")) tpu = 0;
+   else if (!strcmp(editor,"TPU")) tpu = 1;
+   else
+#endif
+     if (-1 == create_edit_command(editor, cmd, sizeof(cmd), file))
+       return;
+
+   most_reset_tty ();
+   most_reset_display ();
+
+#ifdef VMS
+   if (tpu != -1) (void) call_edt_tpu(tpu, file);
+   else
+#endif
+     SLsystem (cmd);
+
+   most_reread_file ();
+   most_init_tty ();
+   most_init_display ();
+   most_redraw_display ();
+}
+

vendor/most-5.1.0/src/edit.h

@@ -0,0 +1,22 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+extern void most_edit_cmd (void);
+extern char *most_escape_filename (char *file, char quote_char);
+

vendor/most-5.1.0/src/file.c

@@ -0,0 +1,846 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <errno.h>
+
+#ifndef VMS
+# include <fcntl.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+# endif
+#else
+# include <types.h>
+# include <stat.h>
+#endif /* NOT VMS */
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#ifndef O_RDONLY
+# define O_RDONLY 0
+#endif
+
+#include "window.h"
+#include "file.h"
+#include "most.h"
+#include "buffer.h"
+#include "display.h"
+#include "sysdep.h"
+#include "edit.h"
+
+char *Most_File_Ring[MOST_MAX_FILES];
+char Most_C_Dir[MAX_PATHLEN];                 /* current working dir */
+int Most_Num_Files;
+int Most_Tail_Mode = 1;
+
+#if !defined(VMS)
+
+static int create_gunzip_cmd (char *cmd, char *file, char *buf, unsigned int sizeof_buf)
+{
+   char *efile;
+
+   if (NULL == (efile = most_escape_filename (file, '"')))
+     return -1;
+
+   (void) _pSLsnprintf (buf, sizeof_buf, cmd, efile);
+   SLfree (efile);
+   return 0;
+}
+
+static int open_compressed_file(char *file, int mode, int *size)
+{
+   int fd;
+   char buf[4], cmdbuf[2*MAX_PATHLEN];
+   struct stat st;
+
+# ifdef O_BINARY
+   mode |= O_BINARY;
+# endif
+# ifdef IBMPC_SYSTEM
+   Most_Z_Opt = 1;
+# endif
+
+   if (Most_Z_Opt)
+     {
+	if (stat(file, &st)) return(-1);
+	*size = st.st_size;
+	return (open(file,mode));
+     }
+   fd = open(file, O_RDONLY);
+
+   if (fd < 0) return fd;
+
+   if (4 == read(fd, buf, 4))
+     {
+	char *cmd = NULL;
+
+	if ((buf[0] == (char) 0x1f)
+	    && (buf[1] == (char) 0x8b)
+	    && (buf[2] == (char) 0x08)
+	    && ((buf[3] == (char) 0x08) || (buf[3] == (char)0x00)))
+	  {
+	     cmd = MOST_GUNZIP_POPEN_FORMAT;
+	  }
+	else if ((buf[0] == 'B') && (buf[1] == 'Z') && (buf[2] == 'h')
+	    && (buf[3] > 47))
+	  {
+	     cmd = MOST_BZIP2_POPEN_FORMAT;
+	  }
+
+	if (cmd != NULL)
+	  {
+	     FILE *fp;
+
+	     close (fd);
+	     most_flush_message ("Uncompressing file...");
+
+	     if (-1 == create_gunzip_cmd (cmd, file, cmdbuf, sizeof(cmdbuf)))
+	       return -1;
+	     fp = popen (cmdbuf, "r"); /* GLIBC doe not support "rb" */
+	     if (fp == NULL)
+	       return -1;
+	     *size = 0;
+	     fd = fileno (fp);
+	     Most_Buf->fp = fp;
+	     /* pclose (fp); */
+	     return fd;
+	  }
+     }
+
+   close (fd);
+   if (stat(file, &st)) return(-1);
+   *size = st.st_size;
+   return (open(file,mode));
+}
+#endif /* VMS */
+
+#if MOST_HAS_MMAP
+#ifdef HAVE_SYS_MMAN_H
+# include <sys/mman.h>
+#endif
+
+#ifndef MAP_FAILED
+# define MAP_FAILED	-1
+#endif
+static int try_mmap_buffer (int fd)
+{
+   unsigned char *addr;
+   struct stat st;
+
+   Most_Buf->is_mmaped = 0;
+
+   if (Most_Disable_MMap)
+     return -1;
+
+   if (-1 == fstat (fd, &st))
+     return -1;
+
+   addr = (unsigned char *)mmap (NULL,st.st_size,PROT_READ,MAP_SHARED,fd,0);
+   if (addr == (unsigned char *)MAP_FAILED)
+     return -1;
+
+   Most_Buf->fd = fd;
+   Most_Eob = Most_Beg = Most_Buf->end = Most_Buf->beg = addr;
+   Most_Buf->size = 0;
+   Most_Buf->mmap_size = st.st_size;
+   Most_Buf->is_mmaped = 1;
+
+   return 0;
+}
+
+static int unmmap_buffer (Most_Buffer_Type *b)
+{
+   if (b->is_mmaped == 0)
+     return 0;
+
+   if (b->beg != NULL)
+     munmap ((char *)b->beg, b->size);
+
+   b->end = b->beg = NULL;
+   if (b == Most_Buf)
+     {
+	Most_Beg = Most_Eob = NULL;
+	Most_C_Line = 0;
+	Most_Num_Lines = Most_C_Line = 0;
+     }
+   return 0;
+}
+
+static int resync_mmap (void)
+{
+   struct stat st;
+   int line = Most_C_Line;
+
+   if (Most_Buf->fd == -1)
+     return 0;
+   if (-1 == fstat (Most_Buf->fd, &st))
+     return -1;
+
+   if ((unsigned int) st.st_size == Most_Buf->mmap_size)
+     return 0;
+
+   (void) unmmap_buffer (Most_Buf);
+   if (-1 == try_mmap_buffer (Most_Buf->fd))
+     return -1;
+
+   most_goto_line (line);
+   return 0;
+}
+
+#endif				       /* MOST_HAS_MMAP */
+
+int most_close_buffer_file (Most_Buffer_Type *b)
+{
+   if (b->fd != -1)
+     {
+#if !defined(VMS)
+	if (b->fp != NULL) pclose (b->fp);
+	else
+#endif
+	  close(b->fd);
+     }
+#if MOST_HAS_MMAP
+   unmmap_buffer (b);
+#endif
+   if (b->beg != NULL)
+     SLFREE(b->beg);
+   b->beg = NULL;
+   b->fd = -1;
+
+   return 0;
+}
+
+/* If file[0] == 0, the file represents stdin */
+static int insert_file(char *file)
+{
+   int size = 0, fd;
+   /* int mode; */
+#ifdef VMS
+   struct stat st;
+   unsigned recsz = 512;
+   /* extern int stat(char *, struct stat *); */
+#endif
+
+   if (file[0] == '\0')        /* assume stdin */
+     {
+	fd = 0;
+	strcpy (Most_Buf->file, "*stdin*");
+     }
+   else
+     {
+#ifdef VMS
+	if (stat(file, &st)) return(-1);
+	 /* mode = st.st_mode & S_IFMT; */
+	size = st.st_size;
+	recsz = st.st_fab_mrs;
+	if (recsz <= 255) recsz = 255;
+          /* VMS share options (shr=put) suggested by Henk D. Davids <hdavids@mswe.dnet.ms.philips.nl> */
+          /* VMS share options (shr=upi,get,put) suggested by Mark Pizzolato <mark@infocomm.com> */
+	fd = open(file,O_RDONLY,"ctx=rec","mbf=8","mbc=16","rop=RAH","shr=upi,get,put");
+          /* if (fd < 0) fd = open(file,O_RDONLY); */
+#else
+	fd = open_compressed_file(file, O_RDONLY, &size);
+# if MOST_HAS_MMAP
+	if (0 == try_mmap_buffer (fd))
+	  return most_read_file_dsc (1, 1);
+# endif
+#endif
+     }
+
+   if (fd < 0) return(-1);
+
+   if (!fd || (size <= 0)) size = 0x7FFF;
+#ifdef VMS
+   Most_Buf->rec = recsz;
+#endif
+   Most_Buf->fd = fd;
+
+   /* This will fail on really large files. */
+   Most_Eob = Most_Beg = Most_Buf->beg = (unsigned char *) MOSTMALLOC(size);
+   Most_Buf->size = size;
+
+   return most_read_file_dsc (1, 1);
+}
+
+static void update_buffer_windows (Most_Buffer_Type *b)
+{
+   Most_Window_Type *w;
+
+   if (NULL == (w = Most_Win))
+     return;
+   do
+     {
+	if (w->buf == b) w->dirty_flag = 1;
+	w = w->next;
+     }
+   while (w != Most_Win);
+}
+
+static void examine_file_contents (void)
+{
+   unsigned char *pos, *pos_max;
+
+   if (Most_B_Opt || Most_K_Opt)
+     return;
+
+   pos = Most_Beg;
+   pos_max = pos + 512;
+   if (pos_max > Most_Eob)
+     pos_max = Most_Eob;
+
+   while (pos < pos_max)
+     {
+	if (0 == *pos)
+	  {
+	     Most_B_Opt = 1;
+	     break;
+	  }
+	pos++;
+     }
+
+   /* Check for a FITS file.  The header looks like ASCII. */
+   if (Most_B_Opt == 0)
+     {
+	pos = Most_Beg;
+	pos_max = Most_Eob;
+	if ((pos_max > pos + 80)
+	    && (0 == strncmp ((char *) pos, "SIMPLE  =", 9)))
+	  {
+	     Most_V_Opt = 1;
+	     Most_W_Opt = 1;
+	  }
+     }
+}
+
+static int First_Time_Hack = 0;	       /* true if reading file for first time */
+
+#if MOST_HAS_MMAP
+static int read_mmap_file_dsc (int many, int count_lines)
+{
+   unsigned int size;
+
+   size = Most_Buf->size;
+
+   if (many == -1)
+     {
+	if (-1 == resync_mmap ())
+	  return -1;
+     }
+
+   if (size == Most_Buf->mmap_size)
+     return 0;
+
+   if (many < 0)
+     size = Most_Buf->mmap_size;
+   else
+     {
+	size += many * 0xFFFF;
+	if (size > Most_Buf->mmap_size)
+	  size = Most_Buf->mmap_size;
+     }
+
+   Most_Eob = Most_Buf->end = Most_Buf->beg + size;
+   Most_Buf->size = size;
+
+   most_flush_message ("Mapping file...");
+
+   if (First_Time_Hack)
+     examine_file_contents ();
+
+   if (count_lines)
+     Most_Num_Lines = most_count_lines (Most_Beg, Most_Eob);
+
+   most_message(Most_Global_Msg, 0);
+   return 1;
+}
+
+#endif
+
+/* if read something, return non zero (1) */
+int most_read_file_dsc (int many, int count_lines)
+{
+   int fd = Most_Buf->fd, n = 0, i;
+   int dsize, size, passes = 0;
+   unsigned char *pos;
+#ifdef VMS
+   int recsz = Most_Buf->rec;
+#endif
+
+   if (fd < 0) return 0;
+
+#if MOST_HAS_MMAP
+   if (Most_Buf->is_mmaped)
+     {
+	int ret = read_mmap_file_dsc (many, count_lines);
+	if (-1 != ret)
+	  return ret;
+
+	if (Most_Buf->is_mmaped)
+	  return -1;
+	/* No longer mapped..... */
+     }
+#endif
+
+   dsize = 0x3FFF;
+
+   while (many--)
+     {
+	passes++;
+	most_flush_message ("Reading...");
+
+	size = (Most_Eob - Most_Beg) + dsize;
+
+	if (Most_Buf->size > size) pos = Most_Beg;
+	else
+	  {
+	     size = Most_Buf->size + 0xFFFF;
+	     pos = (unsigned char *) MOSTREALLOC(Most_Beg, (unsigned) size);
+	     Most_Buf->size = size;
+	  }
+
+	Most_Eob = pos + (unsigned int) (Most_Eob - Most_Beg);
+	Most_Beg = pos;
+
+	pos = Most_Eob;
+	n = 0;
+
+	while (1)
+	  {
+#ifdef VMS
+	     i = read (fd, (char *) pos, recsz);
+#else
+	     i = read (fd, (char *) pos, dsize - n);
+#endif
+	     if (i == -1)
+	       {
+#ifdef EINTR
+		  if ((errno == EINTR) && (SLKeyBoard_Quit == 0)) continue;
+#endif
+		  break;
+	       }
+
+	     if (i == 0)
+	       {
+		  /* EOF */
+		  /* Under linux, for some reason bash when invoked by
+		   * man will reset the terminal.  Apparantly this is a
+		   * result of most being orphaned.
+		   */
+#ifdef __unix__
+		  if (fd == 0)
+		    (void) most_reinit_terminal ();
+#endif
+		  break;
+	       }
+	     n += i;
+	     pos += i;
+	     if (n >= dsize)
+	       break;
+	  }
+
+	Most_Eob = Most_Buf->end = pos;
+	Most_Buf->beg = Most_Beg;
+
+	if (n != 0) n = 1;
+
+	if ((i <= 0)
+	    || SLKeyBoard_Quit)
+	  {
+	     break;
+	  }
+     }
+
+   if (First_Time_Hack)
+     examine_file_contents ();
+
+   if (count_lines
+       && (n || First_Time_Hack))
+     Most_Num_Lines = most_count_lines (Most_Beg, Most_Eob);
+
+   update_buffer_windows (Most_Buf);
+
+   most_message("reading...done", 0);
+   most_put_message();
+   most_message(Most_Global_Msg, 0);
+
+   return n;
+}
+
+/* This routines makes sure line n is read in. */
+void most_read_to_line(int n)
+{
+   int dn;
+   long nbytes;
+
+   if (Most_Buf->fd == -1) return;
+
+   n += 2 * SLtt_Screen_Rows;
+   dn = n - Most_Num_Lines;
+   if (dn < 0) return;
+
+   nbytes = 0;
+   if (Most_Num_Lines)
+     nbytes = dn * ((Most_Eob - Most_Beg) / Most_Num_Lines);
+   if (nbytes < 0x3FFF) nbytes = 0x3FFF;
+
+   while ((Most_Buf->fd != -1)
+	  && (n >= Most_Num_Lines)
+	  && (0 != most_read_file_dsc (nbytes / 0x3FFF, 1))
+	  && (SLKeyBoard_Quit == 0))
+     {
+	nbytes = 0;
+	if (Most_Num_Lines)
+	  nbytes = dn * ((Most_Eob - Most_Beg) / Most_Num_Lines);
+	if (nbytes < 0x3FFF) nbytes = 0x3FFF;
+     }
+}
+
+int most_find_file(char *file)
+{
+   Most_Buffer_Type *new_buf;
+   int n;
+   char msg[MAX_PATHLEN+20], *msgp;
+   int ret = 0;
+
+   new_buf = most_create_buffer(file);
+   (void) most_switch_to_buffer(new_buf);
+
+   First_Time_Hack = 1;
+   if (insert_file(file) < 0)
+     {
+	sprintf (msg, "%s failed to open.", file);
+	n = strlen (msg);
+	msgp = (char *) MOSTMALLOC((unsigned int) (n + 1));
+	strcpy (msgp, msg);
+	Most_Buf->beg = (unsigned char *) msgp;
+	Most_Buf->end = Most_Buf->beg + n;
+	Most_Buf->fd = -1;
+	Most_Num_Lines = 1;
+	ret = -1;
+     }
+   First_Time_Hack = 0;
+
+   Most_Beg = Most_Buf->beg;
+   Most_Eob = Most_Buf->end;
+   Most_C_Offset = 0;
+   Most_C_Line = 1;
+   Most_Column = 1;
+   return ret;
+}
+
+/* if the file is visible in a window, move to the window and return 1
+   else return 0 */
+Most_Window_Type *most_file_visible(char *file)
+{
+   Most_Window_Type *w;
+   w = Most_Win;
+   Most_Win = Most_Top_Win;
+   do
+     {
+	if (!strcmp(Most_Win->buf->file,file))
+	  {
+	     most_set_window(Most_Win);
+	     return(Most_Win);
+	  }
+	Most_Win = Most_Win->next;
+     }
+   while (Most_Win != Most_Top_Win);
+   Most_Win = w;
+   return(NULL);
+}
+
+void most_reread_file (void)
+{
+   char file[MAX_PATHLEN];
+   int line = Most_C_Line;
+
+   if (-1 == access(Most_Buf->file, 0))        /* does it exist? */
+     {
+	most_message("File not found.",1);
+	return;
+     }
+
+   most_one_window ();
+
+   strcpy (file, Most_Buf->file);
+   most_free_window_buffer ();
+   (void) most_find_file (file);
+   most_goto_line (line);
+   most_window_buffer ();
+}
+
+static int find_file_in_window(char *file)
+{
+   if (NULL != most_file_visible(file))
+     {
+	most_message ("File is already visible.", 1);
+	return -2;
+     }
+
+   if (-1 == access(file, 0))        /* does it exist? */
+     {
+	most_message("File not found.",1);
+	return -1;
+     }
+   most_free_window_buffer();
+   (void) most_find_file(file);
+
+   most_window_buffer();
+
+   most_redraw_window();
+   most_update_status();
+   return 0;
+}
+
+static void format_next_file (char *mbuf, int j, char *file)
+{
+   int len, max_len;
+
+   len = strlen (file);
+   max_len = SLtt_Screen_Cols - 25;
+   if (len > max_len)
+     {
+	sprintf(mbuf, "Next File (%d): ...%s", j, file + (len - max_len));
+     }
+   else	sprintf(mbuf, "Next File (%d): %s", j, file);
+}
+
+void most_do_next_file(int *j)
+{
+   char mbuf[256], *curr_file;
+   unsigned char ch;
+
+   most_select_minibuffer();
+
+   if (*j >= Most_Num_Files) *j = 0;
+   curr_file = Most_File_Ring[*j];
+
+   while (1)
+     {
+	format_next_file (mbuf, *j, curr_file);
+
+	SLsmg_write_string (mbuf);
+	SLsmg_erase_eol ();
+	SLsmg_gotorc (SLtt_Screen_Rows - 1, 0);
+
+	SLsmg_refresh ();
+
+	ch = most_getkey();
+#ifndef IBMPC_SYSTEM
+	if (ch != '\033') break;
+	if (ch = most_getkey(), (ch != 'O') && (ch != '[')) continue;
+	if (ch = most_getkey(), (ch != 'A') && (ch != 'B')) continue;
+#else
+	if ((ch != 0) && (ch != 0xE0))
+	  break;
+
+	ch = most_getkey ();
+	if (ch != 'H') ch = 'B'; else ch = 'A';
+
+#endif
+	if (ch == 'B')
+	  {
+	     if (*j == 0) *j = Most_Num_Files;
+	     (*j)--;
+	  }
+	else  /* ch == 'A' */
+	  {
+	     (*j)++;
+	     if (*j == Most_Num_Files) *j = 0;
+	  }
+	curr_file = Most_File_Ring[*j];
+     }
+
+   most_exit_minibuffer();
+
+   (*j)++;
+   if ((ch == 'Q') || (ch == 'q'))
+     {
+	most_exit_most ();
+     }
+   else find_file_in_window(curr_file);
+}
+
+/* extracts directory from file string, returns false if no dir */
+int most_head(char *file, char *dir)
+{
+   int n;
+
+   if (file == NULL) return 0;
+
+   (void) strcpy(dir,file);
+   n = strlen(file) - 1;
+#ifdef VMS
+   while((n > -1) && (file[n] != ']') && (file[n] != ':')) n--;
+#else
+   while((n > -1) && file[n] != '/') n--;
+#endif
+   n++;
+   dir[n] = '\0';
+   return(n);
+}
+
+/* returns a pointer to the tail of file */
+static int tail(char *filed, char **filep)
+{
+   int n;
+   n = strlen(filed) - 1;
+#ifdef VMS
+   while((n > -1) && ((filed[n] != ']') && (filed[n] != ':'))) n--;
+#else
+   while((n > -1) && (filed[n] != '/')) n--;
+#endif
+   n++;
+   *filep = (filed + n);
+   return(n);
+}
+
+/* assume path is big enough to hold new expanded version */
+static int expand_path(char *path)
+{
+#ifndef VMS
+   int n;
+#endif
+    /* really cheat here-- let system do it.  The path must exist!! */
+   if (chdir(path))
+     {
+	most_message(path,1);
+	return(0);
+     }
+   else
+     {
+	most_get_cdir(path);
+	(void) chdir(Most_C_Dir);
+#ifndef VMS
+	n = strlen(path);
+	if (path[n-1] == '/') return(1);
+	path[n++] = '/'; path[n] = 0;
+#endif
+     }
+   return(1);
+}
+
+#if 0
+static void most_cd (void)
+{
+   char tmp_dir[MAX_PATHLEN];
+   int n;
+
+   if (Most_Secure_Mode)
+     {
+	most_message ("CD disabled in secure mode.", 1);
+	return;
+     }
+
+   strcpy(tmp_dir,Most_C_Dir);
+   if (most_read_from_minibuffer("cd ",Most_C_Dir) == -1) return;
+   if (!chdir(Most_C_Dir))
+     {
+	most_get_cdir(Most_C_Dir);         /* expands ../ etc... */
+	n = strlen(Most_C_Dir);
+# ifndef VMS
+	if (Most_C_Dir[n-1] == '/') return;
+	Most_C_Dir[n++] = '/'; Most_C_Dir[n] = 0;
+# endif
+	return;
+     }
+   strcpy(Most_C_Dir,tmp_dir);
+   (void) chdir(Most_C_Dir);
+   most_message("Unable to change directory.",1);
+}
+#endif
+
+void most_user_get_file()
+{
+   char path[MAX_PATHLEN], file[MAX_PATHLEN], *name;
+#ifdef VMS
+   unsigned int i, imax;
+#endif
+
+   if (Most_Secure_Mode)
+     {
+	most_message ("Getting a file is not permitted in secure mode.", 1);
+	return;
+     }
+
+   if (!most_head(Most_Win->buf->file,file))
+     strcpy(file,Most_C_Dir);
+
+   if (most_read_from_minibuffer("Find File: ", file, file, sizeof(file)) == -1)
+     return;
+
+   if (most_head(file,path))
+     {
+	expand_path(path);
+	tail(file,&name);
+	strcat(path,name);
+	name = path;
+     }
+   else name = file;
+#ifdef VMS
+   imax = strlen (name);
+   for (i = 0; i < imax; i++)
+     name [i] = toupper (name[i]);
+#endif
+
+   if (find_file_in_window(name) < 0) return;
+
+    /*
+    **  add to file ring if successful
+    */
+   if ((NULL != most_file_visible(name))
+       && (Most_Num_Files < MOST_MAX_FILES))
+     {
+	Most_File_Ring[Most_Num_Files] = (char*) MOSTMALLOC(strlen(name) + 1);
+	strcpy(Most_File_Ring[Most_Num_Files++],name);
+     }
+}
+
+void most_get_cdir(char *dir)
+{
+#ifdef sequent
+   getwd(dir);
+#else
+# ifdef HAVE_GETCWD
+   getcwd(dir, MAX_PATHLEN);
+# else
+   getwd(dir);
+# endif
+#endif
+
+#ifndef VMS
+     {
+	int i;
+	i = strlen(dir);
+	if (i && (dir[i - 1]  != '/')) dir[i++] = '/';
+	dir[i] = 0;
+     }
+#endif
+}

vendor/most-5.1.0/src/file.h

@@ -0,0 +1,41 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+#define MOST_MAX_FILES 4096
+#define MOST_MAX_FILES 4096
+#define MOST_GUNZIP_POPEN_FORMAT "gzip -dc \"%s\""
+#define MOST_BZIP2_POPEN_FORMAT "bzip2 -dc \"%s\""
+
+extern void most_reread_file (void);
+extern void most_read_to_line (int);
+extern Most_Window_Type *most_file_visible (char *);
+extern void most_user_get_file(void);
+extern int most_read_file_dsc(int many, int count_lines);
+extern void most_get_cdir(char *);
+extern int most_get_dir(char *);
+extern void most_do_next_file(int *);
+extern int most_find_file(char *);
+extern int most_head(char *, char *);
+
+extern char *Most_File_Ring[MOST_MAX_FILES];
+extern int Most_Num_Files;
+extern char Most_C_Dir[MAX_PATHLEN];
+extern int Most_Tail_Mode;
+extern int most_close_buffer_file (Most_Buffer_Type *);

vendor/most-5.1.0/src/help.c

@@ -0,0 +1,206 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+
+#ifdef VMS
+# include <stat.h>
+#else
+# include <sys/types.h>
+# include <sys/stat.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "most.h"
+#include "window.h"
+#include "file.h"
+#include "display.h"
+#include "line.h"
+#include "keym.h"
+#include "sysdep.h"
+
+/* This section provided by Mats Akerberg (mats@efd.lth.se) */
+
+static char *help[] =
+{
+   "Quitting:",
+   "  Q                      Quit MOST.",
+   "  :N,:n                  Quit this file and view next. ",
+   "                            (Use UP/DOWN arrow keys to select next file.)",
+   "Movement:",
+   "  SPACE, D              *Scroll down one Screen.",
+   "  U, BACKSPACE          *Scroll Up one screen.",
+   "  RETURN, DOWN          *Move Down one line.",
+   "  UP                    *Move Up one line.",
+   "  T                      Goto Top of File.",
+   "  B                      Goto Bottom of file.",
+   "  > , TAB                Scroll Window right",
+   "  <                      Scroll Window left",
+   "  RIGHT                  Scroll Window left by 1 column",
+   "  LEFT                   Scroll Window right by 1 column",
+   "  J, G                   Goto line.",
+   "  %                      Goto percent.",
+   "Window Commands:",
+   "  Ctrl-X 2, Ctrl-W 2     Split window.",
+   "  Ctrl-X 1, Ctrl-W 1     Make only one window.",
+   "  O, Ctrl-X O            Move to other window.",
+   "  Ctrl-X 0               Delete Window.",
+   "Searching:",
+   "  S, f, /               *Search forward",
+   "  ?                     *Search Backward",
+   "  N                     *Find next in current search direction.",
+   "Miscellaneous:",
+   "  W                      Toggle width between 80 and 132 char mode.",
+   "  Ctrl-X Ctrl-F          Read a file from disk",
+   "  R, Ctrl-R              Redraw Screen.",
+   "  F                      Simulate tail -f mode",
+   "  :o                     Toggle options:  b-binary, w-wrap, t-tab",
+   "  E                      Edit file.  Uses MOST_EDITOR and EDITOR",
+   "                           environment variables.",
+   "*Note:  This command may be repeated `n' times By entering a number then",
+   "        the command key, e.g.,  '5 SPACE' moves 5 screens forward.",
+   NULL
+};
+
+static void most_do_help_text (void)
+{
+   char **p = help, *sect = NULL;
+   int r;
+
+   while (*p != NULL)
+     {
+	SLsmg_cls ();
+
+	r = 0;
+	SLsmg_gotorc (0, 0);
+
+	if ((sect != NULL) && (**p == ' '))
+	  {
+	     most_tt_bold_video ();
+	     SLsmg_gotorc (r, 0);
+	     SLsmg_write_string (sect);
+	     most_tt_normal_video ();
+	     SLsmg_write_string (" (continued)");
+	     r += 2;
+	  }
+	else sect = NULL;
+
+	while (r < SLtt_Screen_Rows - 1)
+	  {
+	     if (*p == NULL) break;
+
+	     if (**p != ' ')
+	       {
+		  if (((r + 5) > SLtt_Screen_Rows)
+		      && (**p != '*'))
+		    {
+		       sect = NULL;
+		       break;
+		    }
+
+		  if (sect != NULL)
+		    {
+		       r++;
+		    }
+
+		  if (**p != '*')
+		    {
+		       sect = *p;
+		       most_tt_bold_video ();
+		    }
+		  else sect = NULL;
+	       }
+	     SLsmg_gotorc (r, 0);
+	     SLsmg_write_string (*p);
+
+	     if ((**p != ' ') && (**p != '*'))
+	       {
+		  most_tt_normal_video ();
+		  r++;
+	       }
+	     p++;
+	     r++;
+	  }
+
+	SLsmg_gotorc (r, 0);
+
+	most_tt_reverse_video();
+	SLsmg_write_string("Press any key to continue.");
+	most_tt_normal_video();
+
+	SLsmg_refresh ();
+
+	most_getkey ();
+     }
+
+   most_redraw_display();
+}
+
+static void most_do_help_file (char *helpfile)
+{
+   char *buf_name;
+   FILE *fp;
+
+   buf_name = "*help*";
+
+#ifdef MOST_HELPFILE
+   if (helpfile == NULL) helpfile = MOST_HELPFILE;
+#endif
+
+   if (helpfile != NULL)
+     {
+	if (most_file_visible(buf_name)) return;
+
+	/* See if we can open it */
+	if (NULL != (fp = fopen  (helpfile, "r")))
+	  {
+	     fclose (fp);
+	     if (!most_split_window())
+	       {
+		  most_message("Two many windows.",1);
+		  return;
+	       }
+	     most_update_status();  /* create status line of prev. window */
+	     most_other_window(1);
+	     (void) most_find_file(helpfile);
+	     strcpy(Most_Buf->file, buf_name);
+	     Most_B_Opt = 0;
+	     most_window_buffer ();
+	     most_redraw_window ();
+	     most_update_status ();
+	     return;
+	  }
+     }
+
+   most_do_help_text ();
+}
+
+void most_do_help_command(void)
+{
+   most_do_help_file (getenv ("MOST_HELP"));
+}
+

vendor/most-5.1.0/src/jdmacros.h

@@ -0,0 +1,72 @@
+#ifndef _JD_MACROS_H_
+# define _JD_MACROS_H_
+
+/* This file defines some macros that I use with programs that link to
+ * the slang library.
+ */
+
+# ifdef HAVE_MALLOC_H
+#  include <malloc.h>
+# endif
+
+# ifdef HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+
+# ifndef SLMEMSET
+#  ifdef HAVE_MEMSET
+#   define SLMEMSET memset
+#  else
+#   define SLMEMSET SLmemset
+#  endif
+# endif
+
+# ifndef SLMEMCHR
+#  ifdef HAVE_MEMCHR
+#   define SLMEMCHR memchr
+#  else
+#   define SLMEMCHR SLmemchr
+#  endif
+# endif
+
+# ifndef SLMEMCPY
+#  ifdef HAVE_MEMCPY
+#   define SLMEMCPY memcpy
+#  else
+#   define SLMEMCPY SLmemcpy
+#  endif
+# endif
+
+/* Note:  HAVE_MEMCMP requires an unsigned memory comparison!!!  */
+# ifndef SLMEMCMP
+#  ifdef HAVE_MEMCMP
+#   define SLMEMCMP memcmp
+#  else
+#   define SLMEMCMP SLmemcmp
+#  endif
+# endif
+
+# if SLANG_VERSION < 9934
+#  define SLmemcmp jed_memcmp
+#  define SLmemcpy jed_memcpy
+#  define SLmemset jed_memset
+#  define SLmemchr jed_memchr
+# endif
+
+# ifndef SLFREE
+#  define SLFREE free
+# endif
+
+# ifndef SLMALLOC
+#  define SLMALLOC malloc
+# endif
+
+# ifndef SLCALLOC
+#  define SLCALLOC calloc
+# endif
+
+# ifndef SLREALLOC
+#  define SLREALLOC realloc
+# endif
+
+#endif				       /* _JD_MACROS_H_ */

vendor/most-5.1.0/src/keym.c

@@ -0,0 +1,734 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+#include <stdio.h>
+#include <ctype.h>
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "most.h"
+#include "keym.h"
+#include "display.h"
+#include "window.h"
+#include "search.h"
+#include "edit.h"
+#include "sysdep.h"
+#include "file.h"
+#include "keyparse.h"
+
+int *Most_Digit_Arg;
+static char Last_Char;
+static int Edt_Direction = 1;
+
+static void digit_arg_cmd(void);
+
+static void page_down_cmd (void)
+{
+   int n = 1;
+
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   if (n < 0) n = 1;
+   n = Most_C_Line + n * (Most_Win->bot - Most_Win->top + 1);
+   most_read_to_line (n + 50);
+   most_update_windows (n);
+}
+
+static void page_up_cmd (void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   n = Most_C_Line - n * (Most_Win->bot - Most_Win->top + 1);
+   if (n < 1) n = 1;
+
+   most_update_windows (n);
+}
+
+static void page_right_cmd (void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   Most_Column = Most_Column + n * 59;
+   most_update_windows(Most_C_Line);
+}
+
+static void page_left_cmd(void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   Most_Column = Most_Column - n * 59;
+   most_update_windows(Most_C_Line);
+}
+
+static void column_right_cmd (void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   Most_Column = Most_Column + n;
+   most_update_windows(Most_C_Line);
+}
+
+static void column_left_cmd(void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   Most_Column = Most_Column - n;
+   most_update_windows(Most_C_Line);
+}
+
+static void next_line_cmd(void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+
+   most_read_to_line (Most_C_Line + n + 50);
+   most_update_windows(Most_C_Line + n);
+}
+
+static void previous_line_cmd(void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+
+   most_update_windows(Most_C_Line - n);
+}
+
+static void tail_mode_cmd (void)
+{
+   Most_Tail_Mode = 1;
+
+   do
+     {
+	if (0 != most_read_file_dsc (-1, 1))
+	  most_update_windows (-1);
+
+	most_message ("Most Tail Mode--  MOST keys are still active.", 0);
+	most_put_message ();
+
+	most_point_cursor ();
+	SLsmg_refresh ();
+     }
+   while (0 == SLang_input_pending (15));
+   Most_Tail_Mode = 0;
+}
+
+static void top_of_buffer_cmd(void)
+{
+   most_update_windows(1);
+}
+
+static void end_of_buffer_cmd(void)
+{
+   unsigned int count = 0;
+   /* This will loop forever if the file is changing too fast. */
+   while ((Most_Buf->fd != -1)
+	  && (count < 5)
+	  && (0 != most_read_file_dsc(-1, 1)))
+     count++;
+   most_update_windows (-1);
+   Most_Curs_Offset = (Most_Eob - Most_Beg);
+}
+#ifdef unix
+# include <signal.h>
+#endif
+static void sys_spawn_cmd(void)
+{
+#ifdef IBMPC_SYSTEM
+   most_message ("Not implemented.", 1);
+#else
+   int update = 0;
+# ifndef VMS
+   static int can_suspend = -1;
+
+   if (can_suspend == -1)
+     {
+	can_suspend = 0;
+#  ifdef SIGTSTP
+	if (SIG_DFL == SLsignal (SIGTSTP, SIG_DFL))
+	  can_suspend = 1;
+#  endif
+     }
+   if (can_suspend == 0)
+     {
+	most_message ("Shell forbids suspension.", 1);
+	return;
+     }
+# endif
+
+   if (Most_Secure_Mode || Most_Captive_Mode)
+     {
+	most_message ("Operation not permitted by this account.", 1);
+	return;
+     }
+   most_reset_tty();
+   most_reset_display();
+# ifdef VMS
+   if (Last_Char == '\032') exit(0);
+   if (most_do_shell_command()) update = 1; /* scroll region reset by message facility */
+# else
+#  ifdef SIGTSTP
+   kill(0, SIGTSTP);
+#  endif
+   update = 1;
+# endif
+   most_init_tty();
+   most_init_display ();
+   if (update) most_redraw_display();
+#endif				       /* IBMPC_SYSTEM */
+}
+
+static void redraw_cmd(void)
+{
+   most_redraw_display();
+}
+
+static int read_integer (char *prompt, MOST_INT *n)
+{
+   int status;
+   Most_Mini_Buf[0] = 0;
+
+   status = most_read_from_minibuffer(prompt, NULL, (char *) Most_Mini_Buf, MOST_MINI_BUF_LEN);
+   if (status < 0)
+     return -1;
+
+   if (1 != sscanf((char *) Most_Mini_Buf, MOST_INT_D_FMT, n))
+     {
+	most_message ("Expecting an integer", 1);
+	return -1;
+     }
+
+   Most_Mini_Buf[0] = 0;
+   return 0;
+}
+
+static void goto_line_cmd(void)
+{
+   MOST_INT n;
+
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   else
+     {
+	if (-1 == read_integer ("Goto Line: ", &n))
+	  return;
+     }
+   most_update_windows ((int)n);
+}
+
+static void goto_percent_cmd(void)
+{
+   unsigned char *pos;
+   MOST_INT n;
+
+   if (Most_Digit_Arg != NULL) n = *Most_Digit_Arg;
+   else
+     {
+	if (-1 == read_integer ("Goto Percent: ", &n))
+	  return;
+     }
+
+   if (n < 0) n = 0; else if (n > 100) n = 100;
+   if (Most_Buf->fd != -1) most_read_file_dsc(-1, 1);
+   pos = Most_Beg + (n * (Most_Eob - Most_Beg))/100;
+   n = most_what_line(pos);
+   most_update_windows (n);
+}
+
+static void set_mark_cmd(void)
+{
+   Most_Buf->mark = Most_C_Line;
+   most_message("Mark Set.",0);
+}
+
+static void goto_mark_cmd(void)
+{
+   int mark = Most_Buf->mark;
+   Most_Buf->mark = Most_C_Line;
+   most_update_window(mark);
+   most_message("Mark Set.",0);
+}
+
+static void one_window_cmd(void)
+{
+   most_one_window();
+}
+
+static void two_window_cmd(void)
+{
+   most_two_windows();
+}
+
+static void del_window_cmd(void)
+{
+   most_delete_window();
+}
+
+static void other_window_cmd(void)
+{
+   int n = 1;
+   if (Most_Digit_Arg != (int *) NULL) n = *Most_Digit_Arg;
+   most_other_window(n);
+}
+
+static void find_next_cmd(void)
+{
+   MOST_INT col, line, n = 1;
+   unsigned long ofs;
+
+   if (Most_Digit_Arg != NULL) n = *Most_Digit_Arg;
+   line = most_search ((Most_Beg + Most_Curs_Offset) + Most_Search_Dir, n, &col);
+   if (line < 1) return;
+
+   ofs = Most_Curs_Offset;
+
+   if ((line < Most_Win->beg_line) || (line > Most_Win->beg_line + Most_Win->bot - Most_Win->top))
+     most_update_window(line);
+
+   Most_Curs_Offset = ofs;
+
+   Most_Curs_Row = line - Most_C_Line + 1;
+   Most_Curs_Col = col;
+}
+
+static void find_next_opposite_dir_cmd (void)
+{
+   Most_Search_Dir = -Most_Search_Dir;
+   find_next_cmd ();
+   Most_Search_Dir = -Most_Search_Dir;
+}
+
+static void search_cmd_dir (char *prompt, int dir)
+{
+   char buf[MOST_SEARCH_BUF_LEN];
+
+   if (-1 == most_read_from_minibuffer(prompt, NULL, buf, MOST_SEARCH_BUF_LEN))
+     return;
+
+   Most_Search_Dir = dir;
+   if (*buf)
+     strcpy (Most_Search_Str, buf);    /* no buffer overflow here */
+   Most_Curs_Offset = Most_C_Offset;
+   find_next_cmd ();
+}
+
+static void search_cmd(void)
+{
+   char *prompt = "Regexp-Search: ";
+   if (Most_Do_Regexp_Search == 0)
+     prompt += 7;
+   search_cmd_dir (prompt,1);
+}
+
+static void search_back_cmd(void)
+{
+   char *prompt = "Regexp-Search Backwards: ";
+   if (Most_Do_Regexp_Search == 0)
+     prompt += 7;
+   search_cmd_dir (prompt, -1);
+}
+
+static void help_cmd(void)
+{
+   most_do_help_command();
+}
+
+static void find_file_cmd(void)
+{
+   most_user_get_file();
+}
+
+static void time_cmd(void)
+{
+   most_message(most_get_time(),0);
+}
+
+static void toggle_width_cmd(void)
+{
+   if (SLtt_Screen_Cols == 80)
+     {
+	if (!Most_Restore_Width_To) Most_Restore_Width_To = 80;
+	most_set_width(132, 1);
+     }
+   else if (SLtt_Screen_Cols == 132)
+     {
+	if (!Most_Restore_Width_To) Most_Restore_Width_To = 132;
+	most_set_width(80, 1);
+     }
+}
+
+static void edt_forward_cmd(void)
+{
+   Edt_Direction = 1;
+}
+
+static void edt_back_cmd(void)
+{
+   Edt_Direction = 0;
+}
+
+static void edt_page_cmd(void)
+{
+   if (Edt_Direction == 0)
+     {
+	page_up_cmd();
+     }
+   else
+     {
+	page_down_cmd();
+     }
+}
+
+static void edt_line_cmd(void)
+{
+   if (Edt_Direction == 0)
+     {
+	previous_line_cmd();
+     }
+   else
+     {
+	next_line_cmd();
+     }
+}
+
+static void edt_find_cmd(void)
+{
+   if (Edt_Direction == 0)
+     {
+	search_back_cmd();
+     }
+   else
+     {
+	search_cmd();
+     }
+}
+
+static void edt_find_next_cmd(void)
+{
+   if (Edt_Direction == 0)
+     {
+	Most_Search_Dir = -1;
+     }
+   else
+     {
+	Most_Search_Dir = 1;
+     }
+   find_next_cmd();
+}
+
+#define A_KEY(s, f)  {s, (int (*)(void)) f}
+SLKeymap_Function_Type Most_Functions [] =
+{
+   A_KEY("edit", most_edit_cmd),
+   A_KEY("suspend", sys_spawn_cmd),
+   A_KEY("next_file", most_next_file),
+   A_KEY("toggle_options", most_toggle_options),
+   A_KEY("toggle_lock", most_toggle_lock),
+   A_KEY("extended_key", most_extended_key_cmd),
+   A_KEY("toggle_case", most_toggle_case),
+   A_KEY("delete_file", most_delete_file_cmd),
+   A_KEY("bob", top_of_buffer_cmd),
+   A_KEY("delete_window", del_window_cmd),
+   A_KEY("digit_arg", digit_arg_cmd),
+   A_KEY("down", next_line_cmd),
+   A_KEY("edt_backward", edt_back_cmd),
+   A_KEY("edt_find", edt_find_cmd),
+   A_KEY("edt_find_next", edt_find_next_cmd),
+   A_KEY("edt_forward", edt_forward_cmd),
+   A_KEY("edt_line", edt_line_cmd),
+   A_KEY("edt_page", edt_page_cmd),
+   A_KEY("eob", end_of_buffer_cmd),
+   A_KEY("exit", most_exit_most),
+   A_KEY("find_file", find_file_cmd),
+   A_KEY("find_next", find_next_cmd),
+   A_KEY("find_next_other_dir", find_next_opposite_dir_cmd),
+   A_KEY("goto_line", goto_line_cmd),
+   A_KEY("goto_mark", goto_mark_cmd),
+   A_KEY("goto_percent", goto_percent_cmd),
+   A_KEY("help", help_cmd),
+   A_KEY("one_window", one_window_cmd),
+   A_KEY("other_window", other_window_cmd),
+   A_KEY("page_down", page_down_cmd ),
+   A_KEY("page_left", page_left_cmd),
+   A_KEY("page_right", page_right_cmd ),
+   A_KEY("page_up", page_up_cmd ),
+   A_KEY("column_left", column_left_cmd ),
+   A_KEY("column_right", column_right_cmd ),
+   A_KEY("redraw", redraw_cmd),
+   A_KEY("search_backward", search_back_cmd),
+   A_KEY("search_forward", search_cmd),
+   A_KEY("set_mark", set_mark_cmd),
+   A_KEY("show_time", time_cmd),
+   A_KEY("tail_mode", tail_mode_cmd),
+   A_KEY("toggle_width", toggle_width_cmd),
+   A_KEY("two_windows", two_window_cmd),
+   A_KEY("up", previous_line_cmd),
+     {(char *) NULL, NULL}
+};
+
+SLKeyMap_List_Type *Most_Keymap;
+
+#ifdef IBMPC_SYSTEM
+static void gobble_mouse_cmd(void)
+{
+   SLang_flush_input ();
+}
+#endif
+
+void most_init_keymaps (void)
+{
+   char  *err = "Unable to create keymaps!";
+   char esc[3], gold[5], dig[2];
+   int i;
+
+   if (NULL == (Most_Keymap = SLang_create_keymap ("Most", NULL)))
+     most_exit_error (err);
+
+   Most_Keymap->functions = Most_Functions;
+
+   esc[0] = 27; esc[2] = 0;
+   gold[0] = 27; gold[1] = 'O'; gold[2] = 'P'; gold[4] = 0;
+   dig[1] = 0;
+
+   for (i = '0'; i <= '9'; i++)
+     {
+	dig[0] = (char) i;
+	esc[1] = (char) i;
+	gold[3] = (char) i;
+	SLkm_define_key (dig, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+	SLkm_define_key (esc, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+	SLkm_define_key (gold, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+     }
+
+   dig[0] = '-'; esc[1] = '-'; gold[3] = '-';
+   SLkm_define_key (dig, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+   SLkm_define_key (esc, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+   SLkm_define_key (gold, (FVOID_STAR) digit_arg_cmd, Most_Keymap);
+
+   SLkm_define_key (" ", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("$", (FVOID_STAR) sys_spawn_cmd, Most_Keymap);
+   SLkm_define_key ("%", (FVOID_STAR) goto_percent_cmd, Most_Keymap);
+   SLkm_define_key (",", (FVOID_STAR) goto_mark_cmd, Most_Keymap);
+   SLkm_define_key ("/", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key (":", (FVOID_STAR) most_extended_key_cmd, Most_Keymap);
+   SLkm_define_key ("<", (FVOID_STAR) page_left_cmd, Most_Keymap);
+   SLkm_define_key (">", (FVOID_STAR) page_right_cmd, Most_Keymap);
+   SLkm_define_key ("?", (FVOID_STAR) search_back_cmd, Most_Keymap);
+   SLkm_define_key ("B", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("D", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("E", (FVOID_STAR) most_edit_cmd, Most_Keymap);
+   SLkm_define_key ("F", (FVOID_STAR) tail_mode_cmd, Most_Keymap);
+   SLkm_define_key ("G", (FVOID_STAR) goto_line_cmd, Most_Keymap);
+   SLkm_define_key ("H", (FVOID_STAR) help_cmd, Most_Keymap);
+   SLkm_define_key ("J", (FVOID_STAR) goto_line_cmd, Most_Keymap);
+   SLkm_define_key ("L", (FVOID_STAR) most_toggle_lock, Most_Keymap);
+   SLkm_define_key ("M", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+   SLkm_define_key ("n", (FVOID_STAR) find_next_cmd, Most_Keymap);
+   SLkm_define_key ("N", (FVOID_STAR) find_next_opposite_dir_cmd, Most_Keymap);
+   SLkm_define_key ("O", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("Q", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("R", (FVOID_STAR) redraw_cmd, Most_Keymap);
+   SLkm_define_key ("S", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key ("T", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("U", (FVOID_STAR) page_up_cmd , Most_Keymap);
+   SLkm_define_key ("V", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("W", (FVOID_STAR) toggle_width_cmd, Most_Keymap);
+   SLkm_define_key ("X", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("\033$", (FVOID_STAR) sys_spawn_cmd, Most_Keymap);
+   SLkm_define_key ("\033<", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\033>", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+#if !defined(IBMPC_SYSTEM)
+   SLkm_define_key ("\033OA", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("\033OB", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("\033OC", (FVOID_STAR) column_right_cmd, Most_Keymap);
+   SLkm_define_key ("\033OD", (FVOID_STAR) column_left_cmd, Most_Keymap);
+   SLkm_define_key ("\033OPE", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("\033OPO", (FVOID_STAR) one_window_cmd, Most_Keymap);
+   SLkm_define_key ("\033OPQ", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("\033OPS", (FVOID_STAR) sys_spawn_cmd, Most_Keymap);
+   SLkm_define_key ("\033OPV", (FVOID_STAR) del_window_cmd, Most_Keymap);
+   SLkm_define_key ("\033OPX", (FVOID_STAR) two_window_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033OR", (FVOID_STAR) edt_find_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033On", (FVOID_STAR) goto_mark_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033Ot", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033Ou", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033[A", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033[B", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033[C", (FVOID_STAR) page_right_cmd, Most_Keymap);
+   SLkm_define_key ("\033OP\033[D", (FVOID_STAR) page_left_cmd, Most_Keymap);
+   SLkm_define_key ("\033OQ", (FVOID_STAR) help_cmd, Most_Keymap);
+   SLkm_define_key ("\033OR", (FVOID_STAR) edt_find_next_cmd, Most_Keymap);
+   SLkm_define_key ("\033On", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+   SLkm_define_key ("\033Op", (FVOID_STAR) edt_line_cmd, Most_Keymap);
+   SLkm_define_key ("\033Ot", (FVOID_STAR) edt_forward_cmd, Most_Keymap);
+   SLkm_define_key ("\033Ou", (FVOID_STAR) edt_back_cmd, Most_Keymap);
+   SLkm_define_key ("\033Ox", (FVOID_STAR) edt_page_cmd, Most_Keymap);
+   SLkm_define_key ("\033V", (FVOID_STAR) page_up_cmd , Most_Keymap);
+   SLkm_define_key ("\033[1~", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key ("\033[2~", (FVOID_STAR) goto_mark_cmd, Most_Keymap);
+   SLkm_define_key ("\033[28~", (FVOID_STAR) help_cmd, Most_Keymap);
+   SLkm_define_key ("\033[4~", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+   SLkm_define_key ("\033[5~", (FVOID_STAR) page_up_cmd , Most_Keymap);
+   SLkm_define_key ("\033[6~", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("\033[A", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("\033[B", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("\033[C", (FVOID_STAR) column_right_cmd, Most_Keymap);
+   SLkm_define_key ("\033[D", (FVOID_STAR) column_left_cmd, Most_Keymap);
+   SLkm_define_key ("\033[7~", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\033[8~", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("^@", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+#else
+   SLkm_define_key ("^@H", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("^@P", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("^@M", (FVOID_STAR) column_right_cmd, Most_Keymap);
+   SLkm_define_key ("^@K", (FVOID_STAR) column_left_cmd, Most_Keymap);
+   SLkm_define_key ("^@Q", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("^@I", (FVOID_STAR) page_up_cmd, Most_Keymap);
+   SLkm_define_key ("^@G", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("^@O", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+
+   SLkm_define_key ("\xE0H", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0P", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0M", (FVOID_STAR) column_right_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0K", (FVOID_STAR) column_left_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0Q", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0I", (FVOID_STAR) page_up_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0G", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\xE0O", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("\033[M", (FVOID_STAR) gobble_mouse_cmd, Most_Keymap);
+#endif
+   SLkm_define_key ("\t", (FVOID_STAR) page_right_cmd, Most_Keymap);
+   SLkm_define_key ("^", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("^?", (FVOID_STAR) page_up_cmd , Most_Keymap);
+   SLkm_define_key ("^D", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("^F", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key ("^H", (FVOID_STAR) help_cmd, Most_Keymap);
+   SLkm_define_key ("^KE", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("^KG", (FVOID_STAR) find_file_cmd, Most_Keymap);
+   SLkm_define_key ("^K^B", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+   SLkm_define_key ("^K^J", (FVOID_STAR) goto_mark_cmd, Most_Keymap);
+   SLkm_define_key ("^K^M", (FVOID_STAR) goto_mark_cmd, Most_Keymap);
+   SLkm_define_key ("^L", (FVOID_STAR) redraw_cmd, Most_Keymap);
+   SLkm_define_key ("^M", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("^N", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("^P", (FVOID_STAR) previous_line_cmd, Most_Keymap);
+   SLkm_define_key ("^R", (FVOID_STAR) redraw_cmd, Most_Keymap);
+   SLkm_define_key ("^T", (FVOID_STAR) time_cmd, Most_Keymap);
+   SLkm_define_key ("^U", (FVOID_STAR) page_up_cmd , Most_Keymap);
+   SLkm_define_key ("^V", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("^W0", (FVOID_STAR) del_window_cmd, Most_Keymap);
+   SLkm_define_key ("^W1", (FVOID_STAR) one_window_cmd, Most_Keymap);
+   SLkm_define_key ("^W2", (FVOID_STAR) two_window_cmd, Most_Keymap);
+   SLkm_define_key ("^WO", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("^X0", (FVOID_STAR) del_window_cmd, Most_Keymap);
+   SLkm_define_key ("^X1", (FVOID_STAR) one_window_cmd, Most_Keymap);
+   SLkm_define_key ("^X2", (FVOID_STAR) two_window_cmd, Most_Keymap);
+   SLkm_define_key ("^XO", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("^X^C", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("^X^F", (FVOID_STAR) find_file_cmd, Most_Keymap);
+   SLkm_define_key ("^Z", (FVOID_STAR) sys_spawn_cmd, Most_Keymap);
+   SLkm_define_key ("b", (FVOID_STAR) end_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("d", (FVOID_STAR) page_down_cmd, Most_Keymap);
+   SLkm_define_key ("e", (FVOID_STAR) most_edit_cmd, Most_Keymap);
+   SLkm_define_key ("f", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key ("g", (FVOID_STAR) goto_line_cmd, Most_Keymap);
+   SLkm_define_key ("j", (FVOID_STAR) goto_line_cmd, Most_Keymap);
+   SLkm_define_key ("l", (FVOID_STAR) most_toggle_lock, Most_Keymap);
+   SLkm_define_key ("m", (FVOID_STAR) set_mark_cmd, Most_Keymap);
+   SLkm_define_key ("n", (FVOID_STAR) find_next_cmd, Most_Keymap);
+   SLkm_define_key ("o", (FVOID_STAR) other_window_cmd, Most_Keymap);
+   SLkm_define_key ("q", (FVOID_STAR) most_exit_most, Most_Keymap);
+   SLkm_define_key ("r", (FVOID_STAR) redraw_cmd, Most_Keymap);
+   SLkm_define_key ("s", (FVOID_STAR) search_cmd, Most_Keymap);
+   SLkm_define_key ("t", (FVOID_STAR) top_of_buffer_cmd, Most_Keymap);
+   SLkm_define_key ("v", (FVOID_STAR) next_line_cmd, Most_Keymap);
+   SLkm_define_key ("w", (FVOID_STAR) toggle_width_cmd, Most_Keymap);
+   SLkm_define_key ("x", (FVOID_STAR) most_exit_most, Most_Keymap);
+   if (SLang_get_error()) most_exit_error (err);
+
+   (void) most_load_user_keymaps ();
+}
+
+static void sldo_key (void)
+{
+   SLang_Key_Type *key;
+
+   key = SLang_do_key (Most_Keymap, most_getkey);
+   SLKeyBoard_Quit = 0;
+   SLang_set_error (0);
+   Last_Char = SLang_Last_Key_Char;
+
+   if ((key == NULL) || (key->f.f == NULL) || (key->type != SLKEY_F_INTRINSIC))
+     {
+	SLtt_beep ();
+     }
+   else (((void (*)(void))(key->f.f)) ());
+}
+
+static void digit_arg_cmd(void)
+{
+   char num[15], ch;
+   int j = 0;
+   static int digits;
+
+   num[j++] = Last_Char;
+   ch = most_getkey();
+   while ((ch >= '0') && (ch <= '9'))
+     {
+	if (j == 15) return;
+
+	num[j++] = ch;
+	ch = most_getkey();
+     }
+
+   if (((j == 1) && (Last_Char != '-')) || (j > 1))
+     {
+	num[j] = '\0';
+	sscanf(num,"%d",&digits);
+	Most_Digit_Arg = &digits;
+     }
+   Last_Char = ch;
+   SLang_ungetkey (ch);
+   sldo_key ();
+}
+
+void most_execute_key (void)
+{
+   static int refresh_pending = 0;
+
+   if (Most_Want_Exit) return;
+
+   most_check_minibuffer ();
+   if (Most_Mini_Buf[0] != '\0') most_put_message ();
+   Most_Digit_Arg = (int *) NULL;
+
+   most_point_cursor ();
+
+   if (SLang_input_pending (0))
+     refresh_pending++;
+   else
+     refresh_pending = 0;
+
+   if ((refresh_pending == 0) || (refresh_pending > 4))
+     {
+	refresh_pending = 0;
+	SLsmg_refresh ();
+     }
+
+   sldo_key ();
+}

vendor/most-5.1.0/src/keym.h

@@ -0,0 +1,84 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+extern void most_init_keymaps (void);
+extern void most_execute_key (void);
+extern int *Most_Digit_Arg;
+extern void most_do_help_command (void);
+
+/* These are in  cmd.c */
+extern void most_extended_key_cmd(void);
+extern void most_next_file (void);
+extern void most_toggle_case (void);
+extern void most_delete_file_cmd (void);
+extern void most_toggle_options (void);
+extern void most_toggle_research (void);
+
+#if 0
+extern void ctrl_x_map_cmd(void);
+extern void ctrl_k_map_cmd(void);
+extern void ctrl_w_map_cmd(void);
+extern void pf1_map_cmd(void);
+extern void pf1_esc_map_cmd(void);
+extern void dec_extended_map_cmd(void);
+extern void esc_map_cmd(void);
+extern void page_down_cmd(void);
+extern void search_cmd(void);
+extern void next_line_cmd(void);
+extern void previous_line_cmd(void);
+extern void extended_cmd_cmd(void);
+extern void redraw_cmd(void);
+extern void goto_line_cmd(void);
+extern void time_cmd(void);
+extern void page_up_cmd(void);
+extern void page_up_cmd(void);
+extern void column_left_cmd(void);
+extern void column_right_cmd(void);
+extern void page_right_cmd(void);
+extern void sys_spawn_cmd(void);
+extern void set_mark_cmd(void);
+extern void top_of_buffer_cmd(void);
+extern void goto_mark_cmd(void);
+extern void search_back_cmd(void);
+extern void find_next_cmd(void);
+extern void end_of_buffer_cmd(void);
+extern void exit_cmd(void);
+extern void one_window_cmd(void);
+extern void two_window_cmd(void);
+extern void del_window_cmd(void);
+extern void other_window_cmd(void);
+extern void O_map_cmd(void);
+extern void find_file_cmd(void);
+extern void digit_arg_cmd(void);
+extern void edit_cmd(void);
+extern void toggle_width_cmd(void);
+extern void goto_percent_cmd(void);
+extern void edt_page_cmd(void);
+extern void edt_forward_cmd(void);
+extern void edt_back_cmd(void);
+extern void edt_line_cmd(void);
+extern void edt_find_cmd(void);
+extern void edt_find_next_cmd(void);
+
+extern int do_extended_key(void);
+extern int do_extended_cmd(void);
+extern void do_help_command(void);
+extern void execute_key(void);
+
+#endif

vendor/most-5.1.0/src/keyparse.c

@@ -0,0 +1,320 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#ifdef __unix__
+# ifndef MOST_SYSTEM_INITFILE
+#  define MOST_SYSTEM_INITFILE "/etc/most.conf"
+# endif
+#endif
+
+/* parses user key definition file */
+
+/* The file is assumed to have a simple format:
+ *
+ *   set "keyname"  function
+ *   unset "keyname"
+ *
+ * For example:
+ *
+ *   unsetkey "^K"
+ *   setkey exit "^Kx"
+ *
+ * Comments extend from the first '%' character to the end of the line.
+ */
+
+#include <slang.h>
+#include "jdmacros.h"
+#include "most.h"
+#include "keyparse.h"
+#include "display.h"
+
+static unsigned int Line_Num;
+
+static void parse_error (char *s)
+{
+   fprintf(stderr, "Most: Error reading config file on line %u.\n%s\n",
+	   Line_Num, s);
+
+   most_exit_error (NULL);
+}
+
+static int unsetkey_fun (int, SLcmd_Cmd_Table_Type *);
+static int setkey_fun (int, SLcmd_Cmd_Table_Type *);
+static int color_fun (int, SLcmd_Cmd_Table_Type *);
+static int mono_fun (int, SLcmd_Cmd_Table_Type *);
+
+static SLcmd_Cmd_Type Startup_File_Cmds[] =
+{
+     {unsetkey_fun, "unsetkey", "S"},
+     {setkey_fun, "setkey", "SS"},
+     {color_fun, "color", "SSS"},
+     {mono_fun, "mono", "SSsss"},
+     {NULL, "", ""}
+};
+static SLcmd_Cmd_Table_Type Cmd_Table;
+
+static int setkey_fun (int argc, SLcmd_Cmd_Table_Type *table) /*{{{*/
+{
+   char *fun = table->string_args[1];
+   char *key = table->string_args[2];
+
+   (void) argc;
+   if (NULL == SLang_find_key_function(fun, Most_Keymap))
+     {
+	parse_error ("Undefined function");
+     }
+
+   if (0 != SLang_define_key (key, fun, Most_Keymap))
+     parse_error ("Error setting key");
+
+   return 0;
+}
+
+static int unsetkey_fun (int argc, SLcmd_Cmd_Table_Type *table) /*{{{*/
+{
+   char *key = table->string_args[1];
+
+   (void) argc;
+
+   SLang_undefine_key (key, Most_Keymap);
+   return 0;
+}
+
+static int parse_file (char *file)
+{
+   char buf[512];
+   FILE *fp;
+
+   if (NULL == (fp = fopen (file, "r")))
+     return 1;
+
+   Cmd_Table.table = Startup_File_Cmds;
+
+   Line_Num = 0;
+   while (NULL != fgets (buf, sizeof (buf), fp))
+     {
+	Line_Num++;
+	(void) SLcmd_execute_string (buf, &Cmd_Table);
+	if (SLang_get_error())
+	  parse_error ("Undefined keyword");
+     }
+
+   fclose (fp);
+   if (SLang_get_error ())
+     {
+	SLang_set_error(0);
+	return -1;
+     }
+   return 0;
+}
+
+int most_load_user_keymaps (void)
+{
+#ifndef VMS
+   char filebuf[MAX_PATHLEN];
+   unsigned int len;
+#endif
+   char *file;
+
+#ifdef MOST_SYSTEM_INITFILE
+   if (MOST_SYSTEM_INITFILE != NULL)
+     {
+	int status;
+	status = parse_file (MOST_SYSTEM_INITFILE);
+	if (status == -1)
+	  return -1;
+     }
+#endif
+
+   if (NULL == (file = getenv ("MOST_INITFILE")))
+     {
+#ifdef VMS
+	file = "SYS$LOGIN:MOST.RC";
+#else
+	*filebuf = 0;
+	file = getenv ("HOME");
+	if (file == NULL)
+	  return -1;
+
+	len = strlen (file);
+	if (len + 8 >= sizeof (filebuf))   /* 8 for strlen("/.mostrc") */
+	  return -1;
+
+	strcpy (filebuf, file);
+	file = filebuf;
+
+	if (len && (file[len - 1] == '/'))
+	  len--;
+	strcpy (file + len, "/.mostrc");
+#endif
+     }
+   return parse_file (file);
+}
+
+/* The following code was borrowed from slrn */
+/*{{{ Setting Color/Mono Attributes */
+
+typedef struct /*{{{*/
+{
+   char *name;
+   int value;
+   char *fg, *bg;
+   SLtt_Char_Type mono;
+}
+
+/*}}}*/
+Color_Handle_Type;
+
+/* default colors -- suitable for a color xterm */
+
+static Color_Handle_Type Color_Handles[] = /*{{{*/
+{
+     {"normal",		0,			"default",	"default", 0},
+     {"status",		MOST_STATUS_COLOR,	"yellow",	"blue", SLTT_REV_MASK},
+     {"underline",	MOST_ULINE_COLOR,	"brightgreen",	"default", SLTT_ULINE_MASK},
+     {"overstrike",	MOST_BOLD_COLOR,	"brightred",		"default", SLTT_BOLD_MASK},
+
+     {NULL, -1, NULL, NULL, 0}
+};
+
+static int set_object_color (char *name, char *fg, char *bg)
+{
+   Color_Handle_Type *ct = Color_Handles;
+
+   while (ct->name != NULL)
+     {
+	if (!strcmp (ct->name, name))
+	  {
+	     SLtt_set_color (ct->value, name, fg, bg);
+	     return 0;
+	  }
+	ct++;
+     }
+
+   parse_error ("Undefined color object");
+   return -1;
+}
+
+static int color_fun (int argc, SLcmd_Cmd_Table_Type *table)
+{
+   char *what = table->string_args[1];
+   char *fg = table->string_args[2];
+   char *bg = table->string_args[3];
+
+   (void) argc;
+   return set_object_color (what, fg, bg);
+}
+
+static int mono_fun (int argc, SLcmd_Cmd_Table_Type *table)
+{
+   char *what = table->string_args[1];
+   char *attr;
+   int i;
+
+   Color_Handle_Type *ct = Color_Handles;
+
+   while (ct->name != NULL)
+     {
+	if (!strcmp (ct->name, what))
+	  {
+	     SLtt_Char_Type mono_attr = 0;
+	     for (i = 2; i < argc; i++)
+	       {
+		  attr = table->string_args[i];
+		  if (!strcmp (attr, "bold")) mono_attr |= SLTT_BOLD_MASK;
+		  else if (!strcmp (attr, "blink")) mono_attr |= SLTT_BLINK_MASK;
+		  else if (!strcmp (attr, "underline")) mono_attr |= SLTT_ULINE_MASK;
+		  else if (!strcmp (attr, "reverse")) mono_attr |= SLTT_REV_MASK;
+		  else if (!strcmp (attr, "none")) mono_attr = 0;
+		  else
+		    {
+		       parse_error ("Undefined mono attribute");
+		       return -1;
+		    }
+	       }
+	     SLtt_set_mono (ct->value, NULL, mono_attr);
+	     return 0;
+	  }
+	ct++;
+     }
+   parse_error ("Undefined color object");
+   return -1;
+}
+
+static char *Ansi_Color_Map[9] =
+{
+   "black",
+   "red",
+   "green",
+   "yellow",
+   "blue",
+   "magenta",
+   "cyan",
+   "white",
+   "default"
+};
+
+void most_setup_colors (void)
+{
+   Color_Handle_Type *h;
+   int i;
+   int fg, bg, at;
+
+   for (i = 1; i < 128; i++)
+     {
+	SLtt_set_color (i, NULL, "default", "default");
+	SLtt_set_mono (i, NULL, 0);
+     }
+
+   for (at = 0; at < 9; at++)
+     {
+	for (fg = 0; fg < 9; fg++)
+	  {
+	     for (bg = 0; bg < 9; bg++)
+	       {
+		  i = fg + 9*(bg + 9*at);
+		  if (i == 0)
+		    continue;
+		  i += MOST_EMBEDDED_COLOR_OFFSET;
+		  SLtt_set_color (i, NULL, Ansi_Color_Map[fg], Ansi_Color_Map[bg]);
+	       }
+	  }
+     }
+
+   h = Color_Handles;
+   while (h->name != NULL)
+     {
+	/* if (h->value != 0)*/	       /* Let COLORFGBG apply to initial color */
+	SLtt_set_color (h->value, NULL, h->fg, h->bg);
+	SLtt_set_color (h->value+MOST_EMBEDDED_COLOR_OFFSET, NULL, h->fg, h->bg);
+	SLtt_set_mono (h->value, NULL, h->mono);
+	SLtt_set_mono (h->value+MOST_EMBEDDED_COLOR_OFFSET, NULL, h->mono);
+
+	h++;
+     }
+}

vendor/most-5.1.0/src/keyparse.h

@@ -0,0 +1,21 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+extern SLKeyMap_List_Type *Most_Keymap;
+extern int most_load_user_keymaps (void);

vendor/most-5.1.0/src/line.c

@@ -0,0 +1,687 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <ctype.h>
+#include <slang.h>
+#include "jdmacros.h"
+
+#include "most.h"
+#include "line.h"
+#include "window.h"
+#include "display.h"
+
+int Most_Tab_Width = 8;
+
+int Most_Selective_Display = 0;
+int Most_Show_Wrap_Marker = 1;
+
+#define IS_BYTE_PRINTABLE(b) \
+   ((((b) >= ' ') && ((b) < 0x7F)) \
+       || ((Most_UTF8_Mode == 0) && ((b) >= SLsmg_Display_Eight_Bit)))
+
+/* take 16 binary characters and put them in displayable form */
+static void binary_format_line (unsigned char *beg, unsigned char *end,
+			       char *buf)
+{
+   unsigned char *b;
+   char *s, *s1;
+   unsigned char ch;
+   int count;
+
+   count = 0;
+   b = beg;
+   s = buf;
+
+   while (b < end)
+     {
+	if (count == 4)
+	  {
+	     *s++ = ' ';
+	     count = 0;
+	  }
+	count++;
+
+	ch = *b++;
+
+	if ((Most_V_Opt == 0)
+	    || (ch & 0x80))
+	  {
+	     sprintf (s, "%02X", ch);
+	     s += 2;
+	     continue;
+	  }
+
+	if ((ch >= ' ') && (ch < 0x7F))
+	  {
+	     *s++ = ' ';
+	     *s++ = (char) ch;
+	     continue;
+	  }
+
+	*s++ = '^';
+	if (ch < ' ') ch += '@';
+	else ch = '?';
+	*s++ = ch;
+     }
+
+   s1 = buf + (9 * 4) + 4;
+   while (s < s1)
+     *s++ = ' ';
+
+   b = beg;
+   while (b < end)
+     {
+        ch = *b++;
+	if (IS_BYTE_PRINTABLE(ch))
+	  {
+	     *s++ = ch;
+	     continue;
+	  }
+	*s++ = '.';
+     }
+   *s = 0;
+}
+
+static void output_binary_formatted_line (void)
+{
+   unsigned char *beg, *end;
+   char buf[256];
+
+   beg = Most_Beg + Most_C_Offset;
+   end = beg + 16;
+
+   if (end > Most_Eob) end = Most_Eob;
+
+   sprintf (buf, "0x%08lX: ", (unsigned long) Most_C_Offset);
+   binary_format_line (beg, end, buf + 12);
+   SLsmg_write_string (buf);
+   SLsmg_erase_eol ();
+}
+
+/* Here *begp points to the char after \e.
+ * The general escape sequence parsed here is assumed to look like:
+ *   \e[ XX ; ... m
+ * If 30 <= XX <= 37, then it specifies the foreground color
+ * If 40 <= XX <= 47, then a background color is specified
+ * If  0 <= XX <= 8, then an attribute (e.g, 8) is specified.
+ * These numbers will be encoded as:
+ *  offset + (FG-30 + 8*(BG-40 + 9*attribute))
+ */
+int most_parse_color_escape (unsigned char **begp, unsigned char *end, int *colorp)
+{
+   unsigned char *beg = *begp;
+   int fg = 38, bg = 48, at = 0;
+   int xx;
+
+   if ((beg >= end) || (*beg != '['))
+     return -1;
+
+   beg++; /* skip [ */
+#if 1
+   if ((beg < end) && (*beg == 'K'))
+     {
+       if (colorp != NULL) *colorp = -1;
+       *begp = beg + 1;
+       return 0;
+     }
+#endif
+
+   while (1)
+     {
+	xx = 0;
+	while ((beg < end) && isdigit (*beg))
+	  {
+	     xx = xx*10 + (*beg - '0');
+	     beg++;
+	  }
+	if ((xx >= 0) && (xx <= 8))
+	  at = xx;
+	else if ((xx >= 20) && (xx <= 28))
+	  xx = 0;
+	else if ((xx >= 30) && (xx <= 37))
+	  fg = xx;
+	else if ((xx >= 40) && (xx <= 47))
+	  bg = xx;
+	else return -1;
+
+	if ((beg < end) && (*beg == ';'))
+	  {
+	     beg++;
+	     continue;
+	  }
+
+	if ((beg < end) && ((*beg == 'm') || (*beg == ']')))
+	  {
+	     *begp = beg + 1;
+	     if (colorp != NULL)
+	       {
+		  if ((fg != 38) || (bg != 48))
+		    xx = ((fg-30) + 9*((bg-40) + 9*at));
+		  if (xx != 0)
+		    xx += MOST_EMBEDDED_COLOR_OFFSET;
+		  *colorp = xx;
+	       }
+	     return 0;
+	  }
+	return -1;
+     }
+}
+
+typedef struct
+{
+   unsigned char *bytes;
+   unsigned char byte;		       /* used if bytes is NULL */
+   unsigned int len;
+   int color;
+}
+Multibyte_Cell_Type;
+
+static int most_analyse_line (unsigned char *begg, unsigned char *endd,
+			      Multibyte_Cell_Type *cells, unsigned int num_cols, int *start_colorp)
+{
+   unsigned char *beg, *end;
+   unsigned int min_col, max_col, prev_width;
+   unsigned int col, max_col_reached;
+   int default_attr;
+   Multibyte_Cell_Type *cell, *max_cell;
+
+   beg = begg;
+   end = endd;
+   col = max_col_reached = 0;
+   cell = cells;
+   max_cell = cell;
+   min_col = Most_Column - 1;
+   max_col = min_col + num_cols;
+
+   default_attr = *start_colorp;
+   prev_width = 1;
+   while (beg < end)
+     {
+	int attr = default_attr;
+	unsigned char ch;
+	unsigned char *pch = beg++;
+	char buf[16];
+
+	if ('\n' == (ch = *pch))
+	  break;
+
+	if ((ch == '\r') && (Most_V_Opt == 0))
+	  {
+	     if (col > max_col_reached) max_col_reached = col;
+	     col = 0;
+	     prev_width = 1;
+	     continue;
+	  }
+
+	if ((ch == '\b') && (Most_V_Opt == 0))
+	  {
+	     if (col > max_col_reached) max_col_reached = col;
+	     if (col < prev_width)
+	       col = 0;
+	     else
+	       col -= prev_width;
+	     continue;
+	  }
+
+	if (col < max_col_reached)		       /* overstrike */
+	  {
+	     attr = MOST_BOLD_COLOR;
+	     if ((col >= min_col) && (col < max_col))
+	       {
+		  cell = cells + (col-min_col);
+		  if (cell->bytes[0] == '_')
+		    attr = MOST_ULINE_COLOR;
+		  else if (ch == '_')
+		    {
+		       cell->color = MOST_ULINE_COLOR;
+		       col++;
+		       continue;
+		    }
+	       }
+	     /* drop */
+	  }
+
+	if (IS_BYTE_PRINTABLE(ch))
+	  {
+	     if ((col >= min_col) && (col < max_col))
+	       {
+		  cell = cells + (col-min_col);
+		  cell->bytes = pch;
+		  cell->len = 1;
+		  cell->color = attr;
+		  if (cell >= max_cell)
+		    max_cell = cell + 1;
+	       }
+	     col++;
+	     prev_width = 1;
+	     continue;
+	  }
+
+	if ((ch == '\t') && (Most_T_Opt == 0) && (Most_Tab_Width))
+	  {
+	     int nspaces = Most_Tab_Width * (col/Most_Tab_Width + 1) - col;
+	     prev_width = nspaces;
+	     while (nspaces > 0)
+	       {
+		  if ((col >= min_col) && (col < max_col))
+		    {
+		       cell = cells + (col-min_col);
+		       cell->bytes = &cell->byte;
+		       cell->byte = ' ';
+		       cell->color = attr;
+		       cell->len = 1;
+		       if (cell >= max_cell)
+			 max_cell = cell + 1;
+		    }
+		  col++;
+		  nspaces--;
+	       }
+	     continue;
+	  }
+#if 1
+	if ((ch == 033) && (Most_V_Opt == 0))
+	  {
+	     int color;
+	     if (0 == most_parse_color_escape (&beg, end, &color))
+	       {
+		  if (color != -1) default_attr = color;
+		  continue;
+	       }
+	     /* drop */
+	  }
+#endif
+
+	if (ch & 0x80)
+	  {
+	     SLwchar_Type wch;
+	     if ((Most_UTF8_Mode)
+		 && (NULL != SLutf8_decode (pch, end, &wch, NULL)))
+	       {
+		  int width = SLwchar_wcwidth (wch);
+		  beg = SLutf8_skip_chars (pch, end, 1, NULL, 1);
+
+		  prev_width = width;
+		  if (width == 0)
+		    {
+		       col--;
+		       if ((col >= min_col) && (col < max_col))
+			 {
+			    cell = cells + (col-min_col);
+			    cell->len += beg-pch;
+			 }
+		       col++;
+		       continue;
+		    }
+
+		  if ((col >= min_col) && (col < max_col))
+		    {
+		       cell = cells + (col-min_col);
+		       cell->bytes = pch;
+		       cell->color = attr;
+		       cell->len = beg - pch;
+		       if (cell >= max_cell)
+			 max_cell = cell + 1;
+		    }
+		  col++;
+		  if (width > 1)
+		    {
+		       if ((col >= min_col) && (col < max_col))
+			 {
+			    cell = cells + (col-min_col);
+			    cell->bytes = pch;
+			    cell->color = attr;
+			    cell->len = 0;
+			    if (cell >= max_cell)
+			      max_cell = cell + 1;
+			 }
+		       col++;
+		    }
+		  continue;
+	       }
+
+	     /* Otherwise, this displays as <XX> and takes up 4 character cells */
+	     sprintf (buf, "<%02X>", (unsigned int) ch);
+	     prev_width = 4;
+	     /* drop */
+	  }
+	else
+	  {
+	     /* Otherwise we have a Ctrl-char displayed as ^X */
+	     if (ch == 0x7F) ch = '?';
+	     else ch += '@';
+
+	     sprintf (buf, "^%c", ch);
+	     prev_width = 2;
+	  }
+
+	pch = (unsigned char *)buf;
+	while (*pch)
+	  {
+	     if ((col >= min_col) && (col < max_col))
+	       {
+		  cell = cells + (col-min_col);
+		  cell->bytes = &cell->byte;
+		  cell->byte = *pch;
+		  cell->color = attr;
+		  cell->len = 1;
+		  if (cell >= max_cell)
+		    max_cell = cell + 1;
+	       }
+	     col++;
+	     pch++;
+	  }
+     }
+
+   if (col < max_col_reached)
+     col = max_col_reached;
+   else
+     max_col_reached = col;
+
+   /* Now add "..." if selective display.  To do that, the next line needs to
+    * be dealt with to determine whether or not it will be hidden.
+    */
+   if (Most_Selective_Display
+       && (Most_W_Opt == 0)
+       && (beg < Most_Eob)
+       && ((col >= min_col) && (col < max_col)))
+     {
+	if (*beg == '\n') beg++;
+
+	while ((beg < Most_Eob)
+	       && ((*beg == ' ') || (*beg == '\t') || (*beg == '\r')))
+	  beg++;
+
+	if ((beg >= Most_Eob) || (*beg == '\n')
+	    || (most_apparant_distance(beg) >= Most_Selective_Display))
+	  {
+	     max_col_reached = col + 3;
+	     while (col < max_col_reached)
+	       {
+		  if (col < max_col)
+		    {
+		       cell = cells + (col-min_col);
+		       cell->bytes = &cell->byte;
+		       cell->byte = '.';
+		       cell->color = 0;
+		       cell->len = 1;
+		       if (cell >= max_cell)
+			 max_cell = cell + 1;
+		    }
+		  col++;
+	       }
+	  }
+     }
+   *start_colorp = default_attr;
+   return max_cell - cells;
+}
+
+static void display_cells (Multibyte_Cell_Type *cell, unsigned int n, char dollar)
+{
+   Multibyte_Cell_Type *cell_max;
+   int last_color = -1;
+
+   cell_max = cell + n;
+   while (cell < cell_max)
+     {
+	if (last_color != cell->color)
+	  {
+	     last_color = cell->color;
+	     SLsmg_set_color (last_color);
+	  }
+	SLsmg_write_chars (cell->bytes, cell->bytes + cell->len);
+	cell++;
+     }
+
+   if (last_color != 0)
+     SLsmg_set_color (0);
+
+   SLsmg_erase_eol ();
+   if (dollar)
+     {
+	SLsmg_gotorc (SLsmg_get_row (), SLtt_Screen_Cols-1);
+	SLsmg_write_nchars (&dollar, 1);
+     }
+}
+
+void most_display_line (int reset)
+{
+   unsigned char *beg, *end;
+   unsigned char dollar;
+   static Multibyte_Cell_Type *cells;
+   static unsigned int num_cells;
+   unsigned int screen_cols;
+   unsigned int num_cells_set;
+   static int last_color = 0;	       /* used for a line that wrapped */
+
+   if (Most_B_Opt)
+     {
+	output_binary_formatted_line ();
+	return;
+     }
+
+   screen_cols = SLtt_Screen_Cols;
+   if (num_cells != screen_cols + 1)
+     {
+	num_cells = screen_cols + 1;
+
+	SLfree ((char *) cells);
+	if (NULL == (cells = (Multibyte_Cell_Type *)SLcalloc (num_cells, sizeof (Multibyte_Cell_Type))))
+	  most_exit_error ("Out of memory");
+     }
+
+   (void) most_extract_line (&beg, &end);
+
+   if (reset || (Most_W_Opt == 0))
+     last_color = 0;
+   num_cells_set = most_analyse_line (beg, end, cells, num_cells, &last_color);
+
+   dollar = 0;
+   if (Most_W_Opt)
+     {
+	if (Most_Show_Wrap_Marker
+	    && (end < Most_Eob)
+	    && (*end != '\n'))
+	  dollar = '\\';
+     }
+   else if (num_cells_set > screen_cols)
+     dollar = '$';
+
+   display_cells (cells, num_cells_set, dollar);
+}
+
+/* given a position in a line, return apparent distance from bol
+   expanding tabs, etc... up to pos */
+int most_apparant_distance (unsigned char *pos)
+{
+   int i, prev_width;
+   unsigned char *save_pos, ch;
+   unsigned int save_offset;
+
+   save_offset = Most_C_Offset;
+   save_pos = pos;
+   Most_C_Offset = (unsigned int) (pos - Most_Beg);
+   pos = most_beg_of_line();
+   Most_C_Offset = save_offset;
+
+   i = 0;
+   prev_width = 1;
+   while (pos < save_pos)
+     {
+	ch = *pos++;
+	if (IS_BYTE_PRINTABLE(ch))
+	  {
+	     i++;
+	     prev_width = 1;
+	     continue;
+	  }
+
+	if ((ch == '\b') && (Most_V_Opt == 0))
+	  {
+	     i -= prev_width;
+	     if (i < 0) i = 0;
+	     continue;
+	  }
+	if ((ch == '\r') && (Most_V_Opt == 0))
+	  {
+	     if (i != 1) i = 0;
+	     prev_width = 1;
+	     continue;
+	  }
+	if ((ch == '\t') && (Most_T_Opt == 0))
+	  {
+	     prev_width = Most_Tab_Width * (i/Most_Tab_Width + 1) - i;  /* Most_Tab_Width column tabs */
+	     i += prev_width;
+	     continue;
+	  }
+
+	if ((ch == 033) && (Most_V_Opt == 0)
+	    && (0 == most_parse_color_escape (&pos, save_pos, NULL)))
+	  continue;
+
+	if (ch & 0x80)
+	  {
+	     SLwchar_Type wch;
+	     if ((Most_UTF8_Mode)
+		 && (NULL != SLutf8_decode (pos-1, save_pos, &wch, NULL)))
+	       {
+		  prev_width = SLwchar_wcwidth (wch);
+		  pos = SLutf8_skip_chars (pos-1, save_pos, 1, NULL, 1);
+		  i += prev_width;
+		  continue;
+	       }
+	     prev_width = 4;
+	     i += prev_width;	       /* <XX> */
+	     continue;
+	  }
+
+	prev_width = 2;
+	i += prev_width;	       /* ^X */
+     }
+   return i;
+}
+
+/*
+ * Returns a pointer to the num_cols'th character after the one
+ * pointed at b. Invisible character runs are not counted toward this
+ * limit, i.e. strings that represent attributes, such as "_\b" for
+ * underlines.
+ *
+ * If multi_column is non-zero, characters spanning more than one
+ * column will add their extra width to the column count.
+ *
+ * If there the end of the buffer is reached, as delimited by argument
+ * e, then e is returned.
+ */
+unsigned char *most_forward_columns (unsigned char *b, unsigned char *e, unsigned int num_cols)
+{
+   unsigned int col = 0;
+   unsigned int prev_width = 1;
+
+   while (b < e)
+     {
+	unsigned char ch = *b++;
+
+	if (col >=num_cols)
+	  {
+	     if ((ch == 033) && (Most_V_Opt == 0))
+	       {
+		  while ((ch == 033)
+			 && (0 == most_parse_color_escape (&b, e, NULL))
+			 && (b < e))
+		    ch = *b++;
+	       }
+	     b--;
+	     break;
+	  }
+
+	if (IS_BYTE_PRINTABLE(ch))
+	  {
+	     col++;
+	     prev_width = 1;
+	     continue;
+	  }
+
+	if (ch & 0x80)
+	  {
+	     SLwchar_Type wch;
+
+	     if ((Most_UTF8_Mode)
+		 && (NULL != SLutf8_decode (b-1, e, &wch, NULL)))
+	       {
+		  b = SLutf8_skip_chars (b-1, e, 1, NULL, 1);
+		  prev_width = SLwchar_wcwidth (wch);
+		  col += prev_width;
+		  continue;
+	       }
+	     prev_width = 4;
+	     col += prev_width;	       /* <XX> */
+	     continue;
+	  }
+
+	if (ch == '\b')
+	  {
+	     if (Most_V_Opt == 0)
+	       {
+		  if (col < prev_width)
+		    col = 0;
+		  else
+		    col -= prev_width;
+	       }
+	     else col += 2;	       /* ^H */
+	     continue;
+	  }
+
+	if (ch == '\r')
+	  {
+	     if (Most_V_Opt == 0)
+	       {
+		  prev_width = 1;
+		  col = 0;
+	       }
+	     else col += 2;	       /* ^M */
+	     continue;
+	  }
+
+	if (ch == '\t')
+	  {
+	     if (Most_T_Opt == 0)
+	       {
+		  prev_width = Most_Tab_Width * (col/Most_Tab_Width + 1) - col;
+		  col += prev_width;
+	       }
+	     else
+	       col += 2;	       /* ^I */
+	     continue;
+	  }
+
+	if ((ch == 033) && (Most_V_Opt == 0)
+	    && (0 == most_parse_color_escape (&b, e, NULL)))
+	  continue;
+
+	/* Ctrl-char ^X */
+	prev_width = 2;
+	col += prev_width;
+     }
+   return b;
+}

vendor/most-5.1.0/src/line.h

@@ -0,0 +1,35 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#ifndef _DAVIS_LINE_H_
+# define _DAVIS_LINE_H_
+#if 0
+extern int most_analyse_line(unsigned char *, unsigned char *, char *, char *);
+extern void most_output(unsigned char *, unsigned int, unsigned char *, unsigned char);
+#endif
+
+extern void most_display_line(int);
+extern int most_apparant_distance(unsigned char *);
+extern unsigned char *most_forward_columns (unsigned char *b, unsigned char *e, unsigned int num_cols);
+extern int most_parse_color_escape (unsigned char **begp, unsigned char *end, int *colorp);
+
+extern int Most_Show_Wrap_Marker;
+
+#endif
+

vendor/most-5.1.0/src/main.c

@@ -0,0 +1,54 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+#include "most.h"
+
+int main(int argc, char *argv[])
+{
+#if 0
+   static volatile int debug_me = 1;
+   while (debug_me == 1)
+     {
+	sleep (1);
+     }
+#endif
+   if (argc > 1)
+     {
+	if ((0 == strcmp (argv[1], "--version"))
+	    || (0 == strcmp (argv[1], "--help")))
+	  {
+	     most_usage ();
+	     exit (1);
+	  }
+     }
+
+   most_initialize_most ();
+   return most (argc, argv);
+}
+

vendor/most-5.1.0/src/modules.lis

@@ -0,0 +1,14 @@
+buffer
+cmd
+display
+edit
+file
+help
+keym
+keyparse
+line
+main
+most
+search
+sysdep
+window

vendor/most-5.1.0/src/most.c

@@ -0,0 +1,565 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <ctype.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifdef VMS
+# include <rmsdef.h>
+#endif
+
+#include <errno.h>
+#include <stdarg.h>
+
+#include <slang.h>
+#include "version.h"
+
+#include "jdmacros.h"
+
+#include "most.h"
+#include "search.h"
+#include "window.h"
+#include "file.h"
+#include "sysdep.h"
+#include "keym.h"
+#include "display.h"
+#include "line.h"
+
+int Most_S_Opt = 0;		       /* squeeze liness */
+int Most_A_Opt = 1;		       /* automatically choose -b if necessary */
+int Most_V_Opt = 0;		       /* display control chars */
+int Most_B_Opt = 0;		       /* display Binary File */
+int Most_T_Opt = 0;		       /* display tab as ^I-- valid only with V option */
+int Most_D_Opt = 0;		       /* delete file mode  (see ':D')  */
+int Most_K_Opt = 0;		       /* Display 8 bit unformatted (Kanji) */
+int Most_Z_Opt = 0;		       /* Gunzip on the fly */
+int Most_Want_Exit;
+int Most_Secure_Mode;
+int Most_Captive_Mode;
+#if MOST_HAS_MMAP
+int Most_Disable_MMap	= 0;
+#endif
+int Most_Do_Regexp_Search = 0;
+
+int Most_UTF8_Mode = -1;	       /* -1:auto, 0:off, 1:on */
+
+static int Most_Starting_Line;
+char *Most_Program;	/* Program Name (argv[0]) */
+
+static char *Most_Version = MOST_VERSION_STR;
+
+#ifdef VMS
+# ifndef isalpha
+#  define isalpha(x) \
+   (((x >= 'A') && (x <= 'Z'))||((x >= 'a') && (x <= 'z')) ? 1 : 0)
+# endif
+#endif
+
+void most_usage (void)
+{
+   fprintf(stderr,"MOST version %s (S-Lang version %s)\n",
+	   Most_Version, SLang_Version_String);
+   if (SLang_Version != SLANG_VERSION)
+     fprintf (stderr, " *Note: This executable was compiled against S-Lang %s\n", SLANG_VERSION_STRING);
+
+   fprintf (stderr, "Usage:\n");
+   fprintf(stderr, "most [-1Cbcdkrstvw] [+/string] [+line number] [+s] [+d] file...\n");
+   fputs(" where: -1:  assume VT100 terminal. (VMS only)\n", stderr);
+   fputs("        -b:  Startup in binary mode.\n", stderr);
+   fputs("        -C:  disable color support\n", stderr);
+   fputs("        -c:  Make searches case sensitive.\n", stderr);
+   fputs("        -d:  Do not display the \\ wrap marker when wrapping lines.\n", stderr);
+   /* fputs("        -k:  Kanji mode.\n", stderr); */
+#if MOST_HAS_MMAP
+   fputs("        -M:  Do not attempt to mmap files.\n", stderr);
+#endif
+   fputs("        -r:  Default to regexp search\n", stderr);
+   fputs("        -s:  Squeeze out excess blank lines.\n", stderr);
+   fputs("        -t:  Display tabs as ^I.  If this option is immediately followed\n", stderr);
+   fputs("               by an integer, the integer sets the tab width.\n", stderr);
+   fputs("        -u:  Disable UTF-8 mode\n", stderr);
+   fputs("        -v:  Do not interpret backspace formatting characters.\n", stderr);
+   fputs("        -w:  Wrap lines.\n", stderr);
+   fputs("        -z:  No gunzip-on-the-fly.\n", stderr);
+   fputs("        +/string:\n", stderr);
+   fputs("             Search for string\n", stderr);
+   fputs("        +line number\n", stderr);
+   fputs("             Start up at specified line number.\n", stderr);
+   fputs("        +d:  Allow file deletion.\n", stderr);
+   fputs("        +s:  Secure Mode-- no edit, cd, shell, and reading files not\n", stderr);
+   fputs("               already listed on the command line.\n", stderr);
+   fputs("        +u:  Enable UTF-8 mode.\n", stderr);
+   fprintf(stderr, "\nExample: most -ct4 +82 keymap.c\n");
+   fputs(" makes searches case sensitive, sets tabwidth to 4, and displays the file\n", stderr);
+   fputs(" keymap.c starting at line 82.\n", stderr);
+}
+
+static void do_switches(char *str);
+
+static void do_extended_switches(char *str)
+{
+   int i;
+   char ch;
+   char numstr [256];
+
+   i = 0;
+   ch = *(++str);
+   if ( ch == '/')
+     {
+	strcpy (Most_Search_Str,++str);
+	return;
+     }
+
+   if (ch >= '0' && ch <= '9')
+     {
+	while ((ch >= '0' && ch <= '9') && (i < 10))
+	  {
+	     numstr[i++] = ch;
+	     ch = *(++str);
+	  }
+	numstr[i] = '\0';
+	if (1 == sscanf (numstr,"%d", &i))
+	  Most_Starting_Line = i;
+	return;
+     }
+
+   if (isalpha(ch))
+     {
+	while (1)
+	  {
+	     switch (ch)
+	       {
+		case 0:
+		  return;
+		case ' ':
+		case '+':
+		  break;
+		case '-':
+		  do_switches (str);
+		  return;
+
+		case 'D':
+		case 'd':
+		  Most_D_Opt = 1;   /* delete file mode */
+		  break;
+		case 'S':
+		case 's':
+		  Most_Secure_Mode = 1;
+		  break;
+
+		case 'U':
+		case 'u':
+		  Most_UTF8_Mode = 1;  /* +u */
+		  break;
+
+		default:
+		  fprintf(stderr,"%s invalid extended option %c ignored.\n",
+			  Most_Program, ch);
+	       }
+	     ch = *(++str);
+	  }
+     }
+
+   fprintf(stderr,"%s: switch '+%s' not valid.\n", Most_Program, str);
+   exit (1);
+}
+
+/* if non-zero, assume terminal is only a generic vt100 */
+static int assume_vt100 = 0;
+static int No_Colors = 0;
+
+static void do_switches(char *str)
+{
+   char ch;
+   if (*str == '-') str++;
+   while ((ch = *str++) != '\0')
+     {
+	switch (ch)
+	  {
+	   default:
+	     fprintf(stderr,"%s: invalid switch %c ignored.\n",
+		     Most_Program, ch);
+	     break;
+
+	   case 'C':
+	     No_Colors = 1;
+	     break;
+	   case 'c':
+	     Most_Case_Sensitive = 1;
+	     break;
+	   case 'd':
+	   case 'D':
+	     Most_Show_Wrap_Marker = 0;
+	     break;
+	   case 'r':
+	     Most_Do_Regexp_Search = 1;
+	     break;
+	   case 's':
+	   case 'S':
+	     Most_S_Opt = 1; break;
+	   case 'V':
+	   case 'v':
+	     Most_V_Opt = 1;  /* verbose-- convert control chars to '^' 'ch' */
+	     break;
+	   case 'W':
+	   case 'w':  Most_W_Opt = 1; break;
+
+	   case 'K':		       /* Kanji option */
+	   case 'k':
+	     /* Most_K_Opt = 1; break; */
+	     break;
+
+	   case 'B':
+	   case 'b':
+	     Most_B_Opt = 1;  /* Binary display 8 bit */
+	     break;
+
+	   case 'M':
+#if MOST_HAS_MMAP
+	     Most_Disable_MMap = 1;
+#endif
+	     break;
+
+	   case 'z':
+	   case 'Z':
+	     Most_Z_Opt = 1;  /* NO Gunzip-on-the-fly */
+	     break;
+
+	   case 't':
+	   case 'T': /* expand tabs to '^I'; meaningful only with 'v' */
+	     ch = *str;
+	     if ((ch <= '9') && (ch >= '0'))
+	       {
+		  str++;
+		  Most_Tab_Width = (int) ch - '0';
+		  if (Most_Tab_Width == 0) Most_T_Opt = 1;
+	       }
+	     else Most_T_Opt = 1;
+	     break;
+
+	   case 'n': case 'N':
+	      /* could be the Gopher Naive user switch --- ignored. */
+	     break;
+	   case '1': assume_vt100 = 1;
+	     break;
+
+	   case 'u':
+	   case 'U':
+	     Most_UTF8_Mode = 0;       /* -u */
+	     break;
+
+	     /* Allow MOST_SWITCHES environment variable to contain + forms,
+	      * e.g., "-sn+d" or "-s -n +d"
+	      */
+	   case ' ':
+	   case '-':
+	     break;
+	   case '+':
+	     do_extended_switches (str - 1);   /* include '+' */
+	     return;
+	  }
+     }
+}
+
+void most_exit_error(char *fmt,...)
+{
+   va_list ap;
+
+   most_reset_tty ();
+   most_reset_display();
+   if (fmt != NULL)
+     {
+	va_start (ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end (ap);
+	putc ('\n', stderr);
+     }
+#ifdef MALLOC_DEBUG
+   SLmalloc_dump_statistics ();
+#endif
+   exit(1);
+}
+
+static void play_cat(char *file)
+{
+   char buf[4096 * 4];
+   int n;
+   FILE *fp;
+
+   if (file == NULL) fp = stdin;
+   else
+     {
+	fp = fopen(file, "r");
+	if (fp == NULL) return;
+     }
+
+   while ((n = fread(buf, 1, 4096 * 4, fp)) > 0)
+     {
+	int m;
+	m = fwrite (buf, 1, n, stdout);
+	if (m != n)
+	  {
+	     fprintf (stderr, "fwrite returned %d, errno = %d\n",
+		      m, errno);
+	     (void) fclose (fp);
+	     exit (1);
+	  }
+     }
+   (void) fclose (fp);
+}
+
+void most_initialize_most (void)
+{
+   Most_S_Opt = 0;
+   Most_A_Opt = 1;
+   Most_V_Opt = 0;
+   Most_B_Opt = 0;
+   Most_T_Opt = 0;
+   Most_D_Opt = 0;
+   Most_K_Opt = 0;
+   Most_W_Opt = 0;
+
+   Most_Selective_Display = 0;
+   *Most_Search_Str = 0;   Most_Search_Dir = 1;
+   Most_Top_Win = Most_Win = NULL;
+   Most_Buf = NULL;
+   Most_Eob = NULL;
+   Most_Beg = NULL;
+   Most_Captive_Mode = Most_Secure_Mode = 0;
+   Most_Want_Exit = 0;
+}
+
+static void do_most (char *file, int start)
+{
+   MOST_INT row, col;
+
+   most_get_cdir(Most_C_Dir);
+
+   row = col = 0;
+
+   if ((-1 == most_find_file (file))
+       && (Most_Num_Files == 1))
+     most_exit_error ("%s: failed to open for reading.", file);
+
+   most_init_display ();
+
+   most_goto_line(start);
+
+   Most_Curs_Offset = Most_C_Offset;
+
+   if (*Most_Search_Str
+       && ((row = most_search (Most_Beg + Most_C_Offset, 1, &col)) > 0))
+     most_goto_line(row);
+   else
+     {
+	row = Most_C_Line;
+	col = 1;
+     }
+
+   most_window_buffer();
+   Most_Curs_Row = Most_Win->curs_line = row - Most_C_Line + 1;
+   Most_Win->curs_offset = Most_Curs_Offset;
+   Most_Curs_Col = Most_Win->curs_col = col;
+   most_redraw_window();
+   most_update_status();
+
+   while (Most_Want_Exit == 0)
+     {
+	most_execute_key();
+     }
+}
+
+void most_exit_most (void)
+{
+   if (Most_Want_Exit) return;
+   Most_Want_Exit = 1;
+   most_clear_minibuffer ();
+   most_reset_tty ();
+   most_reset_display ();
+   most_free_windows ();
+#ifdef MALLOC_DEBUG
+   SLmalloc_dump_statistics ();
+#endif
+}
+
+static void utf8_config (void)
+{
+   int utf8_mode = Most_UTF8_Mode;
+
+   utf8_mode = SLutf8_enable (-1);     /* returns 0 or 1 */
+   if (Most_UTF8_Mode == -1)
+     Most_UTF8_Mode = utf8_mode;
+   else if (utf8_mode != Most_UTF8_Mode)
+     {
+	if (utf8_mode == 1)
+	  (void) SLsmg_utf8_enable (0);   /* locale is UTF-8, but -u passed */
+	else
+	  (void) SLsmg_utf8_enable (1);   /* locale not UTF-8, but +u passed */
+     }
+}
+
+int most (int argc, char **argv)
+{
+   char file[MAX_PATHLEN], *switches;
+   int file_i = 0, quit,i,piped;
+   int status = 0;
+
+#ifdef VMS
+   char filename[256];
+#else
+   int j;
+#endif
+
+   Most_Program = argv[0];
+   piped = 0;
+
+   switches = getenv ("MOST_PROMPT");
+   if ((switches != NULL) && (*switches != 0)) Most_Global_Msg = switches;
+
+   switches = getenv("MOST_SWITCHES");
+   if (switches !=  NULL)  do_switches(switches);
+
+   i = 1;
+   if (argc > 1)
+     {
+	quit = 0;
+	while ((!quit) && (i < argc))
+	  {
+	     if (argv[i][0] == '-')
+	       do_switches(argv[i++]);
+	     else if (argv[i][0] == '+')
+	       do_extended_switches(argv[i++]);
+	     else quit = 1;
+	  }
+     }
+
+#if MOST_HAS_MMAP
+   /* if (Most_D_Opt) */
+   /*   Most_Disable_MMap = 1; */
+#endif
+
+   if (i == argc)
+     {
+	if (isatty(0))   /* 1 if stdin is a terminal, 0 otherwise */
+	  {
+	     most_usage ();
+	     return 0;
+	  }
+	/* assume input is from stdin */
+	file[0] = '\0';  /* tells most this is stdin */
+	piped = 1;
+	if (!isatty(fileno(stdout)))
+	  {
+	     play_cat(NULL);
+	     return 0;
+	  }
+     }
+   else
+     {
+	strncpy (file, argv[i], sizeof(file));
+	file[sizeof(file)-1] = 0;
+     }
+
+   if (!isatty(fileno(stdout)))
+     {
+	while (i < argc) play_cat(argv[i++]);
+	exit(0);
+     }
+
+   Most_Num_Files = 0;
+
+   SLtt_get_terminfo();
+   utf8_config ();
+   SLtt_Ignore_Beep = 1;
+   if (No_Colors)
+     SLtt_Use_Ansi_Colors = 0;
+
+   most_setup_colors ();
+   most_init_tty ();
+   most_init_keymaps ();
+
+   if (Most_B_Opt) Most_A_Opt = 0;   /* explicit b overrides a */
+
+   if (!piped)
+     {
+	file_i = i;
+#ifdef VMS
+	while(i < argc)
+	  {
+	     if (Most_Num_Files >= MOST_MAX_FILES) break;
+	     if (argv[i][0] == '.') strcpy(file,"*"); else *file = 0;
+	     strcat(file, most_unix2vms(argv[i++]));
+	     while (RMS$_NORMAL == (status = most_expand_file_name(file,filename)))
+	       {
+		  Most_File_Ring[Most_Num_Files] = (char*) MOSTMALLOC(strlen(filename) + 1);
+		  strcpy(Most_File_Ring[Most_Num_Files++], filename);
+	       }
+	     if (status == RMS$_NMF) status = RMS$_NORMAL; /* avoid spurious warning message */
+	  }
+
+	if (Most_Num_Files) strcpy(file,Most_File_Ring[0]);
+	else fputs("%%MOST-W-NOFILES, no files found\n", stderr);
+#else
+	Most_Num_Files = argc - i;
+	if (Most_Num_Files > MOST_MAX_FILES)
+	  {
+	     Most_Num_Files = MOST_MAX_FILES;
+	     argc = Most_Num_Files + i;
+	  }
+
+	j = 0;
+	while (i < argc)
+	  {
+	     Most_File_Ring[j++] = argv[i++];
+	  }
+#endif
+     }
+
+   if (Most_Num_Files || piped) do_most(file, Most_Starting_Line);
+   else if (Most_Num_Files == 0)
+     fprintf(stderr,"File %s not found\n", argv[file_i]);
+
+   most_exit_most ();
+   return status;
+}
+
+#if SLANG_VERSION <= 10409
+
+int SLang_set_error (int x)
+{
+   SLang_Error = x;
+   return 0;
+}
+
+int SLang_get_error (void)
+{
+   return SLang_Error;
+}
+
+#endif

vendor/most-5.1.0/src/most.h

@@ -0,0 +1,79 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+extern int Most_S_Opt;
+extern int Most_A_Opt;             /* automatically choose -b if necessary */
+extern int Most_V_Opt;             /* display control chars */
+extern int Most_B_Opt;             /* display Binary File */
+extern int Most_T_Opt;             /* display tab as ^I-- valid only with V option */
+extern int Most_D_Opt;             /* delete file mode  (see ':D')  */
+extern int Most_L_Opt;             /* use ^L (formfeed) to clear screen */
+extern int Most_W_Opt;             /* Wrap mode */
+extern int Most_K_Opt;             /* Kanji mode */
+extern int Most_Z_Opt;             /* gunzip-on-the-fly */
+
+#if MOST_HAS_MMAP
+extern int Most_Disable_MMap;
+#endif
+
+extern int Most_UTF8_Mode;
+
+extern int Most_Secure_Mode;
+extern int Most_Captive_Mode;
+extern char *Most_Program;
+
+extern int most(int, char **);
+extern char *Most_Global_Msg;
+extern int Most_Want_Exit;
+extern void most_initialize_most(void);
+extern void most_exit_most (void);
+extern void most_exit_error (char *, ...);
+
+extern void most_usage (void);
+#define MOSTMALLOC most_malloc
+#define MOSTREALLOC most_realloc
+extern unsigned char *most_malloc(unsigned int);
+extern unsigned char *most_realloc(unsigned char *, unsigned int);
+extern int Most_Tab_Width;
+
+#ifdef VMS
+# ifndef isdigit
+#  define isdigit(x) \
+      (((x >= '0') && (x <= '9')) ? 1 : 0)
+# endif
+#endif
+
+#ifdef HAVE_SNPRINTF
+# define _pSLsnprintf snprintf
+#else
+# if SLANG_VERSION < 20000
+#  define _pSLsnprintf _SLsnprintf
+extern int _pSLsnprintf (char *, unsigned int, char *, ...);
+# else
+#  define _pSLsnprintf SLsnprintf
+# endif
+#endif
+
+#if SLANG_VERSION <= 10409
+extern int SLang_get_error (void);
+extern int SLang_set_error (int);
+#endif
+
+#define SLANG_REGEX 1

vendor/most-5.1.0/src/mostconf.h

@@ -0,0 +1,46 @@
+/*
+ * Use sysconf.h for unix!!!  This file is for NON-unix systems.
+ *
+ * This file is used to indicate capabilities of the C compiler and
+ * operating system.
+ */
+
+/* Basic include files. */
+
+#if defined(__os2__) || defined (__DECC) || defined(VAXC)
+# define HAVE_STDLIB_H 1
+#else
+# define HAVE_MALLOC_H 1
+#endif
+
+#if defined (__os2__)
+# define HAVE_UNISTD_H 1
+# define HAVE_MEMORY_H 1
+#endif
+
+/*
+ * Basic C library functions.
+ */
+
+#if defined(__os2__)
+# define HAVE_PUTENV 1
+#endif
+
+#define HAVE_GETCWD 1
+#define HAVE_MEMSET 1
+#define HAVE_MEMCPY 1
+#define HAVE_MEMCHR 1
+
+#ifdef VMS
+# ifndef __GNUC__
+#  include <unixio.h>
+# endif
+#endif
+
+#define MAX_PATHLEN 256
+
+#define MOST_INT long
+#define MOST_UINT unsigned long
+#define MOST_INT_D_FMT "%ld"
+
+#define MOST_HAS_MMAP	0

vendor/most-5.1.0/src/search.c

@@ -0,0 +1,667 @@
+/* -*- mode: C; mode: fold -*- */
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <slang.h>
+
+#include "most.h"
+#include "window.h"
+#include "line.h"
+#include "file.h"
+#include "display.h"
+#include "search.h"
+
+/* Note!!!  The regular expression searches may not work.  I have not
+ * tested them.
+ * FIXME!!!  This whole thing needs to be rewritten.  It is a mess.
+ */
+
+int Most_Case_Sensitive = 0;
+char Most_Search_Str[256];
+int Most_Search_Dir = 1;
+
+#include "jdmacros.h"
+
+typedef struct Search_Type_ Search_Type;
+struct Search_Type_
+{
+   void *cd;
+   unsigned char *(*fsearch_method) (Search_Type *, unsigned char *, unsigned char *, unsigned char *);
+   unsigned char *(*bsearch_method) (Search_Type *, unsigned char *, unsigned char *, unsigned char *);
+   void (*close_method)(Search_Type *);
+};
+
+
+static unsigned char Ascii_Upper[256];
+
+static void bs_search_init (void)
+{
+   static int inited = 0;
+   unsigned int i;
+
+   if (inited) return;
+   for (i = 0; i < 256; i++) Ascii_Upper[i] = i;
+   for (i = 'a'; i <= 'z'; i++) Ascii_Upper[i] = (i - 32);
+   inited = 1;
+}
+
+#define UPCASE(ch) (Ascii_Upper[(ch)])
+
+#define CHAR_EQS(a,b) \
+   (((a) == (b)) || (!Most_Case_Sensitive && (UPCASE(a) == UPCASE(b))))
+
+static int is_ansi_escape (unsigned char **begp, unsigned char *end)
+{
+   unsigned char *p, ch;
+
+   p = *begp;
+   if ((p == end) || (*p++ != '[')) return 0;
+
+   /* Look for "ESC X m", where X is one of:
+    *   X = ""
+    *   X = digit
+    *   X = digit ; digit ...
+    */
+   ch = *p++;
+   while (isdigit (ch))
+     {
+	while ((p < end) && isdigit (*p))
+	  p++;
+
+	if (p == end)
+	  return 0;
+
+	ch = *p++;
+	if (ch == 'm')
+	  break;
+
+	if ((ch != ';') || (p == end))
+	  return 0;
+
+	ch = *p++;
+     }
+   if (ch != 'm')
+     return 0;
+
+   *begp = p;
+   return 1;
+}
+
+static int is_rev_ansi_escape (unsigned char *beg, unsigned char **endp)
+{
+   unsigned char *p, ch;
+
+   p = *endp;
+   if (p == beg)
+     return 0;
+
+   ch = *p--;
+   while (isdigit (ch))
+     {
+	while ((p > beg) && isdigit (*p))
+	  p--;
+
+	if (p == beg)
+	  return 0;
+
+	ch = *p--;
+
+	if (ch == '[')
+	  break;
+
+	if ((ch != ';') || (p == beg))
+	  return 0;
+
+	ch = *p--;
+     }
+
+   if ((ch != '[') || (p < beg) || (*p != 033))
+     return 0;
+
+   *endp = p-1;
+   return 1;
+}
+
+/* These routines have special processing for ANSI escape sequence and backspace handling.
+ * For example, "hello world" may occur as:
+ *   plain: hello world
+ *   underlined: h_e_l_l_o_ world
+ *   underlined: _h_e_l_l_o world
+ *   bold: hheelllloo world
+ *   ansi: hello world
+ *   ansi: hello world
+ */
+
+/* This routine returns the 1 + position of first match of key in str.
+ * searches from beg up to but not including end.  Handles backspace, etc
+ */
+static unsigned char *
+bs_fsearch (Search_Type *st,
+	    unsigned char *beg, unsigned char *end,
+	    unsigned char *key)
+{
+   unsigned char ch, ch1, ch1up;
+   unsigned char *pos;
+   int cis, key_len, j, str_len;
+
+   (void) st;
+   key_len = strlen ((char *)key);
+   if (key_len == 0)
+     return Most_Eob;
+
+   str_len = (int) (end - beg);
+   if (str_len < key_len) return (Most_Eob);
+
+   cis = (Most_Case_Sensitive == 0);
+   ch1 = key[0];
+   ch1up = UPCASE(ch1);
+
+   while (1)
+     {
+	/* Find first character that matches */
+	while (1)
+	  {
+	     if (beg == end) return Most_Eob;
+
+	     ch = *beg++;
+	     if ((ch == ch1)
+		 || (cis && (ch1up == UPCASE(ch))))
+	       break;
+	  }
+
+	 /* so we have a position of possible match */
+	j = 1;
+
+	pos = beg;  /* save this position so we start from here again */
+
+	while (1)
+	  {
+	     if (j == key_len)
+	       return pos - 1;
+
+	     if (beg == end)
+	       break;
+
+	     ch = *beg++;
+
+	     /* FIXME:  This only works for x^Hx but not x^Hx^Hx...
+	      * It is probably better to skip all the ^H characters
+	      * until the end.  That is, regard "a^Hb^Hc" as 'c'.
+	      */
+	     if ((ch == 8)
+		 && (beg + 1 < end)
+		 && (CHAR_EQS(key[j - 1], *beg)
+		     || (*beg == '_')))
+	       {
+		  ch = *(beg + 1);
+		  beg += 2;
+	       }
+	     else if ((ch == '_') && (beg + 1 < end))
+	       {
+		  ch = *beg++;
+		  if (ch == 8) ch = *beg++;
+		  else
+		    {
+		       ch = '_';
+		       beg--;
+		    }
+	       }
+	     else if ((ch == 033) && is_ansi_escape (&beg, end))
+	       continue;
+
+	     if (!CHAR_EQS(ch, key[j]))
+	       break;
+
+	     j++;
+	  }
+
+	beg = pos;
+     }
+}
+
+/*
+ *  Search backwards in the buffer "beg" up to, but not including "end" for
+ *  pattern "key".  It handles backspaces, etc
+ */
+static unsigned char *
+bs_bsearch (Search_Type *st,
+	    unsigned char *beg, unsigned char *end,
+	    unsigned char *key)
+{
+   unsigned char ch, ch1, ch1up;
+   unsigned char *pos;
+   int key_len,j, str_len;
+   int cis;
+
+   (void) st;
+   key_len = strlen ((char *)key);
+   if (key_len == 0) return Most_Eob;
+
+   str_len = (int) (end - beg);
+   if (str_len < key_len) return Most_Eob;
+
+   ch1 = key[key_len-1];
+   ch1up = UPCASE(ch1);
+   cis = (Most_Case_Sensitive == 0);
+
+   while (1)
+     {
+	while (1)
+	  {
+	     if (end < beg)
+	       return Most_Eob;
+
+	     ch = *end--;
+	     if ((ch == ch1)
+		 || (cis && (ch1up == UPCASE(ch))))
+	       break;
+	  }
+
+	pos = end;  /* save this position so we start from here again */
+
+	j = key_len - 2;
+
+	while (1)
+	  {
+	     if (j < 0)
+	       return end + 1;
+	     if (end < beg)
+	       break;
+
+	     ch = *end--;
+
+	     if ((ch == 8)
+		 && (end >= beg + 1)
+		 && (CHAR_EQS(key[j + 1], *end)
+		     || (*end == '_')))
+	       {
+		  ch = *(end - 1);
+		  end -= 2;
+	       }
+	     else if ((ch == '_')
+		      && (end >= beg + 1))
+	       {
+		  ch = *end--;
+		  if (ch == 8) ch = *end--;
+		  else
+		    {
+		       ch = '_';
+		       end++;
+		    }
+	       }
+	     else if ((ch == 'm') && is_rev_ansi_escape (beg, &end))
+	       continue;
+
+	     if (!CHAR_EQS(ch, key[j]))
+	       break;
+
+	     j--;
+	  }
+	end = pos;
+     }
+}
+
+static int bs_open_search (Search_Type *st, char *key)
+{
+   (void) key;
+
+   bs_search_init ();
+   st->fsearch_method = bs_fsearch;
+   st->bsearch_method = bs_bsearch;
+   st->close_method = NULL;
+   st->cd = NULL;
+   return 0;
+}
+
+static unsigned char *sl_fsearch (Search_Type *st,
+				  unsigned char *beg, unsigned char *end,
+				  unsigned char *key)
+{
+   unsigned char *p;
+
+   (void) key;
+   if (NULL == (p = SLsearch_forward ((SLsearch_Type *)st->cd, beg, end)))
+     p = Most_Eob;
+   return p;
+}
+
+static unsigned char *sl_bsearch (Search_Type *st,
+				  unsigned char *beg, unsigned char *end,
+				  unsigned char *key)
+{
+   unsigned char *p;
+
+   (void) key;
+   if (NULL == (p = SLsearch_backward ((SLsearch_Type *)st->cd, beg, end, end)))
+     p = Most_Eob;
+   return p;
+}
+
+static void sl_search_close (Search_Type *st)
+{
+   if (st->cd != NULL)
+     SLsearch_delete ((SLsearch_Type *) st->cd);
+}
+
+static int sl_open_search (Search_Type *st, char *key)
+{
+   unsigned int flags = 0;
+
+   if (Most_Case_Sensitive == 0) flags |= SLSEARCH_CASELESS;
+   if (Most_UTF8_Mode) flags |= SLSEARCH_UTF8;
+
+   if (NULL == (st->cd = SLsearch_new ((SLuchar_Type *) key, flags)))
+     return -1;
+
+   st->fsearch_method = sl_fsearch;
+   st->bsearch_method = sl_bsearch;
+   st->close_method = sl_search_close;
+   return 0;
+}
+
+static int
+do_search_internal (Search_Type *st,
+		    unsigned char *from, int repeat, MOST_INT *col)
+{
+   /* return the line match was found as well as line number,
+    * search from i on; assume that line_array match the i so we need
+    * no initial lookup */
+
+   int test;
+   MOST_INT save_line, the_col, row, s_len;
+   char string[300];
+   unsigned char *pos, *eob;
+   unsigned int save_ofs;
+   unsigned int found_ofs;
+
+   if (*Most_Search_Str == 0)
+     {
+	most_message("Search string not specified.",1);
+	return -1;
+     }
+
+   if ((from < Most_Beg) || (from > Most_Eob)) return -1;
+
+   save_ofs = Most_C_Offset;
+   save_line = Most_C_Line;
+   found_ofs = Most_Eob - Most_Beg;
+   *col = 0;
+   s_len = strlen (Most_Search_Str);
+   pos = from;
+
+   eob = Most_Eob;
+
+   test = repeat && (pos < Most_Eob) && (pos >= Most_Beg);
+   while(test)
+     {
+	if (Most_Search_Dir == 1)
+	  {
+	     while (1)
+	       {
+		  unsigned int pos_ofs;
+
+		  pos = (*st->fsearch_method)(st, pos, Most_Eob, (unsigned char*) Most_Search_Str);
+		  pos_ofs = (unsigned int) (Most_Eob - Most_Beg);
+
+		  if (pos < Most_Eob)
+		    break;
+
+		  if (0 == most_read_file_dsc (10, 0))
+		    {
+		       /* Pointer may be invalid after this call */
+		       pos = Most_Beg + pos_ofs;
+		       break;
+		    }
+
+		  /* This might need an adjustment */
+		  pos = Most_Beg + (pos_ofs - s_len);
+		  if (pos < Most_Beg) pos = Most_Beg;
+	       }
+	  }
+	else
+	  pos = (*st->bsearch_method)(st, Most_Beg, pos, (unsigned char *) Most_Search_Str);
+
+	if (pos < Most_Eob)
+	  {
+	     repeat--;
+	     found_ofs = pos - Most_Beg;
+	     if (Most_Search_Dir == 1)
+	       pos += s_len;
+	     else pos--;
+	  }
+	test = repeat && (pos < Most_Eob) && (pos >= Most_Beg);
+	if (SLKeyBoard_Quit)
+	  {
+	     most_message ("Search Interrupted.", 1);
+	     break;
+	  }
+     }
+
+   if (eob != Most_Eob)
+     Most_Num_Lines = most_count_lines (Most_Beg, Most_Eob);
+
+   if (repeat) /* not found */
+     {
+	*col = 0;
+
+	(void) sprintf(string,"Search failed: %s",Most_Search_Str);
+	most_message(string,1);
+	row = -1;
+     }
+   else /* if ( !Most_T_Opt && !Most_B_Opt) */   /* expand tabs to get col correct */
+     {
+	most_find_row_column(Most_Beg + found_ofs, &row, &the_col);
+	if (Most_B_Opt) *col = the_col + 52;
+	else
+	  *col = 1 + most_apparant_distance(Most_Beg + found_ofs);
+     }
+
+   Most_C_Offset = save_ofs;
+   Most_C_Line = save_line;
+   if (row > 0) Most_Curs_Offset = found_ofs;
+
+   return row;
+}
+
+static int search_internal (Search_Type *st, unsigned char *from, int repeat, MOST_INT *colp)
+{
+   int status;
+
+   status = do_search_internal (st, from, repeat, colp);
+
+   if (st->close_method != NULL)
+     (st->close_method)(st);
+
+   return status;
+}
+
+static int simple_search (unsigned char *from, int repeat, MOST_INT *colp)
+{
+   Search_Type st;
+
+   if (Most_V_Opt || Most_B_Opt)
+     {
+	/* Nothing special about the ^H and _ chars.  User faster SLsearch */
+	if (-1 == sl_open_search (&st, Most_Search_Str))
+	  return -1;
+     }
+   else if (-1 == bs_open_search (&st, Most_Search_Str))
+     return -1;
+
+   return search_internal (&st, from, repeat, colp);
+}
+
+
+static void re_search_close (Search_Type *st)
+{
+   if (st->cd != NULL)
+     SLregexp_free ((SLRegexp_Type *) st->cd);
+}
+
+static unsigned char *
+re_fsearch (Search_Type *st,
+	    unsigned char *beg, unsigned char *end,
+	    unsigned char *key)
+{
+   SLRegexp_Type *re;
+   unsigned char *p;
+   unsigned int flags;
+
+   (void) key;
+
+   re = (SLRegexp_Type *)st->cd;
+   (void) SLregexp_get_hints (re, &flags);
+
+   while (beg < end)
+     {
+	unsigned char *line_end = beg;
+
+	while (line_end < end)
+	  {
+	     unsigned char ch = *line_end++;
+	     if (ch == '\n') break;
+	  }
+
+	p = (unsigned char *)SLregexp_match (re, (char *)beg, (line_end - beg));
+	if (p != NULL)
+	  {
+	     if ((0 == (flags & SLREGEXP_HINT_BOL))
+		 || (p != beg)
+		 || (beg == Most_Beg)
+		 || (*(beg - 1) == '\n'))
+	       return p;
+	  }
+	beg = line_end;
+     }
+
+   return Most_Eob;
+}
+
+static unsigned char *
+re_bsearch (Search_Type *st,
+	    unsigned char *beg, unsigned char *end,
+	    unsigned char *key)
+{
+   SLRegexp_Type *re;
+   unsigned char *line_end, *eob;
+   unsigned int flags;
+
+   (void) key;
+   re = (SLRegexp_Type *)st->cd;
+   (void) SLregexp_get_hints (re, &flags);
+
+   line_end = end;
+   eob = Most_Eob;
+   while (line_end < eob)
+     {
+	if (*line_end == '\n')
+	  break;
+	line_end++;
+     }
+
+   while (end > beg)
+     {
+	unsigned char *p, *match;
+	unsigned char *line = end;
+	while (line > beg)
+	  {
+	     line--;
+	     if (*line == '\n')
+	       {
+		  line++;
+		  break;
+	       }
+	  }
+
+	/* line is now at the start of a line */
+	if (NULL != (match = (unsigned char *)SLregexp_match (re, (char *)line, line_end-line)))
+	  {
+	     if (match >= end)
+	       {
+		  /* Match occurs to right of boundary.  Try previous line */
+		  end = line_end = line-1;
+		  continue;
+	       }
+
+	     if (flags & SLREGEXP_HINT_BOL)
+	       return match;
+
+	     /*    t    tt  z    t  t     t z */
+	     /* Find match closest to end */
+	     while ((line < end)
+		    && (NULL != (p = (unsigned char *)SLregexp_match (re, (char *)line, (line_end - line))))
+		    && (p < end))
+	       {
+		  match = p;
+		  line++;
+	       }
+	     return match;
+	  }
+
+	end = line-1;
+	line_end = end;
+     }
+
+   return Most_Eob;
+}
+
+
+static int regexp_search (unsigned char *from, int repeat, MOST_INT *colp)
+{
+   Search_Type st;
+   SLRegexp_Type *re;
+   char *pattern;
+   unsigned int flags;
+
+   pattern = Most_Search_Str;
+
+   flags = 0;
+   if (Most_Case_Sensitive == 0) flags |= SLREGEXP_CASELESS;
+
+   re = SLregexp_compile (pattern, flags);
+   if (re == NULL)
+     return -1;
+
+   (void) SLregexp_get_hints (re, &flags);
+   if (flags & SLREGEXP_HINT_OSEARCH)
+     {
+	SLregexp_free (re);
+	return simple_search (from, repeat, colp);
+     }
+
+   st.cd = (void *)re;
+   st.fsearch_method = re_fsearch;
+   st.bsearch_method = re_bsearch;
+   st.close_method = re_search_close;
+
+   return search_internal (&st, from, repeat, colp);
+}
+
+int most_search (unsigned char *from, int repeat, MOST_INT *colp)
+{
+   if (Most_Do_Regexp_Search)
+     return regexp_search (from, repeat, colp);
+
+   return simple_search (from, repeat, colp);
+}

vendor/most-5.1.0/src/search.h

@@ -0,0 +1,32 @@
+#ifndef _DAVIS_SEARCH_H_
+# define _DAVIS_SEARCH_H_
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+# include <stdio.h>
+# include <string.h>
+
+extern int Most_Case_Sensitive;
+extern int Most_Do_Regexp_Search;
+extern int Most_Search_Dir;
+#define MOST_SEARCH_BUF_LEN	256
+extern char Most_Search_Str[MOST_SEARCH_BUF_LEN];
+extern int most_search(unsigned char *, int, MOST_INT *);
+#endif
+

vendor/most-5.1.0/src/sysconf.h

@@ -0,0 +1,107 @@
+/* src/sysconf.h.  Generated from config.hin by configure.  */
+/* -*- C -*- */
+
+/* Note: this is for authentic unix systems only.  
+ * See mostconf.h for other systems.
+ */
+
+#ifndef MOST_CONFIG_H
+#define MOST_CONFIG_H
+
+/* Define if you want the MMAP support */
+#define USE_MMAP 1
+
+/* define if you have long long type */
+#define HAVE_LONG_LONG 1
+
+/* #undef off_t */
+/* #undef size_t */
+#define SIZEOF_OFF_T 8
+#define SIZEOF_SHORT 2
+#define SIZEOF_INT 4
+#define SIZEOF_LONG 8
+#define SIZEOF_FLOAT 4
+#define SIZEOF_DOUBLE 8
+#define SIZEOF_LONG_LONG 8
+
+/* The following set defines may be necessary to activate long file support */
+/* #undef _FILE_OFFSET_BITS */
+/* #undef _LARGE_FILES */
+/* #undef _LARGEFILE_SOURCE */
+
+/* define if you have stdlib.h */
+#define HAVE_STDLIB_H 1
+
+/* define if you have unistd.h */
+#define HAVE_UNISTD_H 1
+
+/* define if you have memory.h */
+#define HAVE_MEMORY_H 1
+
+/* define if you have malloc.h */
+#define HAVE_MALLOC_H 1
+
+/* define if you have memset */
+#define HAVE_MEMSET 1
+
+/* define if you have memcpy */
+#define HAVE_MEMCPY 1
+
+/* define if you have this. */
+#define HAVE_GETCWD 1
+
+#define HAVE_MMAP 1
+
+#define HAVE_TCGETPGRP 1
+#define HAVE_GETPGRP 1
+
+#define HAVE_DIRENT_H 1
+/* #undef HAVE_SYS_NDIR_H */
+/* #undef HAVE_SYS_DIR_H */
+/* #undef HAVE_NDIR_H */
+
+#define HAVE_SNPRINTF 1
+#define HAVE_SYS_MMAN_H 1
+
+/* #undef mode_t */
+/* #undef pid_t */
+/* #undef uid_t */
+/* #undef pid_t */
+
+
+#ifdef _AIX
+# ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+# endif
+# ifndef _ALL_SOURCE
+#  define _ALL_SOURCE 1
+# endif
+/* This may generate warnings but the fact is that without it, xlc will 
+ * INCORRECTLY inline many str* functions. */
+/* # undef __STR__ */
+#endif
+
+#define MAX_PATHLEN 1024
+#if defined(USE_MMAP) && defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H)
+# define MOST_HAS_MMAP	1
+#else
+# define MOST_HAS_MMAP	0
+#endif
+
+#if defined(HAVE_LONG_LONG) && (SIZEOF_OFF_T == SIZEOF_LONG_LONG) && (SIZEOF_LONG_LONG > SIZEOF_LONG)
+typedef long long MOST_INT;
+typedef unsigned long long MOST_UINT;
+# define MOST_INT_D_FMT "%lld"
+#else
+# if (SIZEOF_OFF_T == SIZEOF_INT)
+typedef int MOST_INT;
+typedef unsigned int MOST_UINT;
+#  define MOST_INT_D_FMT "%d"
+# else
+typedef long MOST_INT;
+typedef unsigned long MOST_UINT;
+#  define MOST_INT_D_FMT "%ld"
+# endif
+#endif
+
+#endif /* MOST_CONFIG_H */

vendor/most-5.1.0/src/sysdep.c

@@ -0,0 +1,773 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include "config.h"
+/*
+ * HISTORY
+ * {1}	19-Mar-91  Henk D. Davids <hdavids@mswe.dnet.ms.philips.nl>
+ * 	History started. Added default input file name so you do not
+ *	have to specify name or type if you want it to be *.
+ * 	Changes indicated by "-hdd" in comment.
+ *
+ *  2.  4/4/91  John E. Davis
+ *      I added code to read the teminal size for unix systems-- at least it
+ *      works on a sun4 (BSD ?).  In addition I have also recently added file
+ *      deletion code for both unix and vms.
+ */
+#ifdef VMS
+# include <ssdef.h>
+# include <rmsdef.h>
+# include <dvidef.h>
+# include <jpidef.h>
+# include <libdef.h>
+# include <descrip.h>
+# include <iodef.h>
+# include <ttdef.h>
+# include <starlet.h>
+
+/* #include <unixlib.h> */
+
+#endif  /* VMS */
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <slang.h>
+#include "jdmacros.h"
+
+#ifdef unix
+# include <signal.h>
+# ifdef SYSV
+#  include <sys/types.h>
+#  include <fcntl.h>
+# endif
+# include <sys/file.h>
+#endif
+
+#ifdef __os2__
+# include <signal.h>
+#endif
+
+#ifdef __WIN32__
+#include <windows.h>
+/* Sleep is defined badly in MSVC... */
+# ifdef _MSC_VER
+#  define sleep(n) _sleep((n)*1000)
+# else
+#  ifdef sleep
+#   undef sleep
+#  endif
+#  define sleep(x) if(x)Sleep((x)*1000)
+# endif
+#endif
+
+#include <string.h>
+
+#include "sysdep.h"
+#include "display.h"
+#include "window.h"
+#include "most.h"
+
+#ifdef VMS
+typedef struct
+{
+   /* I/O status block     */
+   short i_cond;           /* Condition value      */
+   short i_xfer;           /* Transfer count     */
+   long  i_info;           /* Device information     */
+}
+iosb;
+
+typedef struct
+{
+   /* Terminal characteristics   */
+   char  t_class;          /* Terminal class     */
+   char  t_type;           /* Terminal type      */
+   short t_width;          /* Terminal width in characters   */
+   long  t_mandl;          /* Terminal's mode and length   */
+   long  t_extend;         /* Extended terminal characteristics  */
+}
+termchar;
+
+static short TTY_CHANNEL_GLOBAL;
+static int zero = 0;
+
+#else
+int TTY_DESCR;
+#endif /* VMS */
+
+/*
+ *
+ *
+ *                          SHELL COMMANDS
+ *
+ */
+
+#ifdef VMS
+
+/* these two from emacs source */
+# if 0
+static define_logical_name (char *varname, char *string)
+{
+   static char sstring[200], svarname[200];
+
+   struct dsc$descriptor_s strdsc =
+     {strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, sstring};
+   struct dsc$descriptor_s envdsc =
+     {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, svarname};
+   struct dsc$descriptor_s lnmdsc =
+     {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"};
+
+   strcpy(sstring, string); strcpy(svarname, varname);
+
+   LIB$SET_LOGICAL (&envdsc, &strdsc, &lnmdsc, 0, 0);
+}
+
+static delete_logical_name (char *varname)
+{
+   struct dsc$descriptor_s envdsc =
+     {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname};
+   struct dsc$descriptor_s lnmdsc =
+     {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"};
+
+   LIB$DELETE_LOGICAL (&envdsc, &lnmdsc);
+}
+
+int most_do_emacs_command()
+{
+   unsigned long pid;
+   char *pidstr;
+
+   if((pidstr = getenv("EMACS_PID")) != NULL)
+     {
+	(void) sscanf(pidstr,"%X",&pid);
+	if (lib$attach(&pid) == SS$_NORMAL) /* we attach to emacs */
+	  return(1);
+	else
+	  return(0);
+          /* 	    printf("Can't attach to pid %X\n",pid); */
+     }
+   else return(0);
+}
+# endif  /* if 0 */
+
+static unsigned long SHELL_PID = 0;
+
+/* returns 0 on success */
+int most_do_shell_command()
+{
+    /* here we try to attach to the parent otherwise just spawn a new one */
+   unsigned long parent_pid;
+   unsigned long status = 0;
+   char str[80];
+
+   $DESCRIPTOR(MOST_$_descr, "MOST > ");
+
+   if (Most_Secure_Mode)
+     {
+	most_message ("Spawning not permitted in secure mode.", 1);
+	return 0;
+     }
+
+   parent_pid = getppid();
+
+   if (parent_pid && (parent_pid != 0xffffffffU))
+      /* we attach to parent */
+     status = lib$attach(&parent_pid);
+
+   else if (SHELL_PID && (SHELL_PID != 0xffffffffU))
+      /* try to attach to previous shell */
+     status = lib$attach (&SHELL_PID);
+
+   if (status != SS$_NORMAL)		/* others fail so spawn a new shell */
+     {
+	status = 0;
+	SLtt_write_string("Spawning MOST DCL SUBPROCESS (Logout when finished)...");
+	lib$spawn(0,0,0,0,0,&SHELL_PID,&status,0,0,0,&MOST_$_descr);
+          /* if we attach back, status may come back unchanged */
+	if ((status != 0) && (status != SS$_NORMAL))
+	  {
+	     sprintf(str,"Unable to spawn subprocess. Error = %X", status);
+	     most_message(str,1);
+	     return(0);
+	  }
+     }
+   most_message(" ",0);  /* make sure message window is restored */
+   return(1);
+}
+
+#endif /* VMS */
+
+/*
+ *                            FILE IO
+ *
+ */
+
+#ifdef VMS
+int most_expand_file_name(char *file,char *expanded_file)
+{
+   unsigned long status;
+   static int context = 0, len = 0;
+   static char inputname[MAX_PATHLEN] = "";
+   $DESCRIPTOR(file_desc,inputname);
+   $DESCRIPTOR(default_dsc,"SYS$DISK:[]*.*;");
+   static struct dsc$descriptor_s  result =
+     {0, DSC$K_DTYPE_T, DSC$K_CLASS_D, NULL};
+
+   if (strcmp(inputname, file))
+     {
+	if (context)
+	  {
+	     lib$find_file_end(&context);
+	  }
+	context = 0;
+	strcpy(inputname, file);
+	len = strlen(inputname);
+     }
+   file_desc.dsc$w_length = len;
+
+   status = lib$find_file(&file_desc,&result,&context,
+			  &default_dsc,0,0,&zero);
+
+   if (status == RMS$_NORMAL)
+     {
+	memcpy(expanded_file, result.dsc$a_pointer, result.dsc$w_length);
+	expanded_file[result.dsc$w_length] = '\0';
+     }
+   else
+     expanded_file[0] = '\0';       /* so file comes back as zero width */
+
+   return status;
+}
+#endif /* VMS */
+
+/*
+ *
+ *
+ *         Terminal IO
+ *
+ */
+
+#ifdef VMS
+/*
+ *      Exit Handler Control Block
+ */
+static struct argument_block
+{
+   int forward_link;
+   int (*exit_routine)();
+   int arg_count;
+   int *status_address;
+   int exit_status;
+}
+Exit_Block =
+{
+   0,
+   NULL,
+   1,
+   &Exit_Block.exit_status,
+   0
+};
+
+#endif  /* VMS */
+
+#ifdef unix
+
+# include <sys/time.h>
+
+# if !defined(sun)
+#  include <sys/ioctl.h>
+# endif
+
+# ifndef NO_UNISTD_H
+#  include <unistd.h>
+# endif
+
+# if HAS_TERMIOS
+#  include <termios.h>
+# endif
+# ifdef SYSV
+#  include <sys/termio.h>
+#  include <sys/stream.h>
+#  include <sys/ptem.h>
+#  include <sys/tty.h>
+# endif
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <errno.h>
+
+#if defined(SIGHUP) && !defined(IBMPC_SYSTEM)
+static void unix_hangup(int sig)
+{
+   most_exit_error ("most: Exiting on signal %d.", sig);
+}
+
+#endif
+
+#endif /* unix */
+
+static int Want_Window_Size_Change;
+static int Most_TTY_Inited = 0;
+
+#ifdef REAL_UNIX_SYSTEM
+static int handle_interrupts (void)
+{
+   if (Want_Window_Size_Change)
+     most_resize_display ();
+
+   return 0;
+}
+#endif
+
+#ifdef SIGWINCH
+static void sigwinch_handler (int sig)
+{
+   (void) sig;
+   Want_Window_Size_Change = 1;
+   (void) SLsignal_intr (SIGWINCH, sigwinch_handler);
+}
+#endif
+
+#if defined(SIGBUS) && MOST_HAS_MMAP
+static void sigbus_handler (int sig)
+{
+   (void) sig;
+   most_reset_tty ();
+   most_reset_display ();
+
+   fprintf (stderr, "SIGBUS caught--- fatal error\n");
+   if ((Most_Buf != NULL)
+       && Most_Buf->is_mmaped)
+     fprintf (stderr, "This may be due to a modified memory mapped file\n");
+
+   exit (1);
+}
+#endif
+
+void most_resize_display (void)
+{
+   Want_Window_Size_Change = 0;
+
+   if (Most_Display_Inited == 0)
+     return;
+
+   most_get_term_dimensions(&SLtt_Screen_Cols, &SLtt_Screen_Rows);
+
+   if (Most_Win != NULL)
+     most_one_window ();
+#if SLANG_VERSION > 10305
+   SLsmg_reinit_smg ();
+#else
+   SLsmg_reset_smg ();
+   SLsmg_init_smg ();
+#endif
+   most_redraw_display ();
+}
+
+static int init_tty (void)
+{
+#if defined(REAL_UNIX_SYSTEM)
+   SLsig_block_signals ();
+#endif
+
+   if (-1 == SLang_init_tty (7, 0, 1))
+     {
+	fprintf (stderr, "most: failed to init terminal.\n");
+	exit (1);
+     }
+#if !defined(IBMPC_SYSTEM)
+   SLtt_enable_cursor_keys ();
+#endif
+#if defined(REAL_UNIX_SYSTEM)
+   SLsig_unblock_signals ();
+   SLang_getkey_intr_hook = handle_interrupts;
+#endif
+   return 0;
+}
+
+void most_init_tty (void)
+{
+   int i;
+   if (Most_TTY_Inited) return;
+
+   (void) init_tty ();
+#if !defined(IBMPC_SYSTEM)
+   SLsig_block_signals ();
+#endif
+
+   for (i = 1; i < 32; i++)
+     {
+	switch (i)
+	  {
+#ifdef SIGHUP
+	   case SIGHUP:
+#endif
+#ifdef SIGQUIT
+	   case SIGQUIT:
+#endif
+#ifdef SIGTERM
+	   case SIGTERM:
+# ifdef REAL_UNIX_SYSTEM
+	     SLsignal_intr (i, unix_hangup);
+# else
+	     (void) i;
+# endif
+	     break;
+#endif
+
+#ifdef SIGWINCH
+	   case SIGWINCH:
+	     (void) SLsignal_intr (SIGWINCH, sigwinch_handler);
+	     break;
+#endif
+
+#if defined(SIGBUS) && MOST_HAS_MMAP
+	   case SIGBUS:
+	     (void) SLsignal_intr (SIGBUS, sigbus_handler);
+	     break;
+#endif
+
+#ifdef SIGCONT
+	   case SIGCONT:
+#endif
+#ifdef SIGTSTP
+	   case SIGTSTP:
+#endif
+#ifdef SIGINT
+	   case SIGINT:
+#endif
+#ifdef SIGCHLD
+	   case SIGCHLD:
+#endif
+	   default:
+	     break;
+#ifdef SIGPIPE
+	   case SIGPIPE:
+	     (void) SLsignal_intr (SIGPIPE, SIG_IGN);
+	     break;
+#endif
+	  }
+     }
+
+   SLang_set_abort_signal (NULL);
+
+   Most_TTY_Inited = 1;
+#if !defined(IBMPC_SYSTEM)
+   SLsig_unblock_signals ();
+#endif
+}
+
+void most_reset_tty (void)
+{
+   if (Most_TTY_Inited == 0) return;
+   SLang_reset_tty ();
+   Most_TTY_Inited = 0;
+}
+
+int most_reinit_terminal (void)
+{
+   if (Most_TTY_Inited == 0)
+     return 0;
+   most_reset_tty ();
+   (void) init_tty ();
+   Most_TTY_Inited = 1;
+   return 0;
+}
+
+/* slang uses select to wait for terminal input.  If SIGINT is
+ * generated, then slang returns ^G and sets SLKeyBoard_Quit
+ * to 1 bypassing the read altogether.  If most was used in
+ * conjunction with xargs (find . -print | xargs most) and ^G
+ * is pressed, a SIGINT will be generated killing xargs and
+ * leaving most an orphan unable to access the terminal.
+ * Unfortunately, the select call will continue to time-out
+ * causing most continue running in the background.  To
+ * workaround this problem, exit if the terminal is not in the
+ * same process group as most.
+ */
+static void check_if_foreground (void)
+{
+#if defined(HAVE_GETPGRP) && defined(HAVE_TCGETPGRP)
+   pid_t pgid = getpgrp ();
+
+   if ((SLang_TT_Read_FD != -1)
+       && (pgid != tcgetpgrp (SLang_TT_Read_FD)))
+     {
+	most_exit_error ("\007Fatal Error: Most is not in the terminal's process group.");
+     }
+#endif
+}
+
+int most_getkey()
+{
+   unsigned int ch;
+   static int last_was_sigint;
+
+   /* This non-sense involving last_was_sigint is to handle a race condition.
+    * The shell may not have had time to change the pgids, so sleep a bit
+    * here.  Yea, its ugly and does not really solve the problem...
+    */
+   if (last_was_sigint)
+     {
+	sleep (1);
+	check_if_foreground ();
+	last_was_sigint = 0;
+     }
+
+   ch = SLang_getkey ();
+   if (ch == SLANG_GETKEY_ERROR)
+     most_exit_error ("most: getkey error.");
+
+   if (SLKeyBoard_Quit)
+     {
+	check_if_foreground ();
+	last_was_sigint = 1;
+     }
+   SLKeyBoard_Quit = 0;
+   SLang_set_error (0);
+   return (int) ch;
+}
+
+/*
+ *
+ *      Misc Termial stuff
+ *
+ *
+ */
+
+/*  This is to get the size of the terminal  */
+void most_get_term_dimensions(int *cols, int *rows)
+{
+   SLtt_get_screen_size ();
+   *rows = SLtt_Screen_Rows;
+   *cols = SLtt_Screen_Cols;
+}
+
+/* returns 0 on failure, 1 on sucess */
+int most_delete_file(char *filename)
+{
+#ifdef VMS
+   return (1 + delete(filename));   /* 0: sucess; -1 failure */
+#else
+   return(1 + remove(filename));
+#endif
+}
+
+/* This routine converts unix type names to vms names */
+#ifdef VMS
+static int locate(char ch, char *string)
+{
+   int i;
+   char c;
+
+   i = 0;
+   while (c = string[i++], (c != ch) && (c != '\0'));
+   if (c == ch) return(i); else return (0);
+}
+
+char *most_unix2vms(char *file)
+{
+   int i,device,j,first,last;
+   static char vms_name[MAX_PATHLEN];
+   char ch;
+
+   if (locate('[',file)) return(file); /* vms_name syntax */
+   if (!locate('/',file)) return(file); /* vms_name syntax */
+
+    /* search for the ':' which means a device is present */
+   device = locate(':',file);
+
+   i = 0;
+   if (device)
+     {
+	while (ch = file[i], i < device) vms_name[i++] = ch;
+     }
+   j = i;
+
+    /* go from the  end looking for a '/' and mark it */
+   i = strlen(file) - 1;
+   while(ch = file[i], ch != '/' && i-- >= 0);
+   if (ch == '/')
+     {
+	file[i] = ']';
+	last = 0;
+     }
+   else last = 1;
+
+   i = j;
+   vms_name[j++] = '[';
+   vms_name[j++] = '.';
+   first = 0;
+   while(ch = file[i++], ch != '\0')
+     {
+	switch (ch)
+	  {
+	   case '.':
+	     if (last) vms_name[j++] = '.';
+	     if (last) break;
+	     ch = file[i++];
+	     if (ch == '.')
+	       {
+		  if (!first) j--;  /* overwrite the dot */
+		  vms_name[j++] = '-';
+	       }
+	     else if (ch == '/'); /*  './' combinations-- do nothing */
+	     else if (ch == ']')
+	       {
+		  last = 1;
+		  if (vms_name[j-1] == '.') j--;
+		  vms_name[j++] = ']';
+	       }
+
+	     else vms_name[j++] = '.';
+	     break;
+	   case '/':
+	     if (first)
+	       {
+		  vms_name[j++] = '.';
+	       }
+	     else
+	       {
+		  first = 1;
+                      /* if '/' is first char or follows a colon do nothing */
+		  if ((i!=1) && (file[i-2] != ':'))
+		    {
+		       vms_name[j++] = '.';
+		    }
+		  else j--; /* overwrite the '.' following '[' */
+	       }
+	     break;
+	   case ']':
+	     last = 1;
+	     if (vms_name[j-1] == '.') j--;
+	     vms_name[j++] = ']';
+	     break;
+	   default:
+	     vms_name[j++] = ch;
+	  }
+     }
+   return (vms_name);
+}
+
+/*
+main(int argc, char **argv)
+{
+    puts(unix2vms(argv[1]));
+}
+*/
+
+#endif /* VMS */
+
+#include <time.h>
+
+char *most_get_time()
+{
+   time_t clk;
+   char *the_time;
+
+   clk = time((time_t *) 0);
+   the_time = (char *) ctime(&clk);
+   /* returns the form Sun Sep 16 01:03:52 1985\n\0 */
+   the_time[24] = '\0';
+   return(the_time);
+}
+
+void most_set_width (int width, int redraw)
+{
+#ifdef IBMPC_SYSTEM
+   (void) width; (void) redraw;
+#else
+#ifdef VMS
+   short fd;
+   int status;
+   iosb iostatus;
+   static termchar tc; /* Terminal characteristics   */
+   $DESCRIPTOR( devnam, "SYS$ERROR");
+#else
+# ifdef TIOCGWINSZ
+   struct winsize wind_struct;
+# endif
+#endif
+
+    /* Switching physical terminal to narrow/wide mode.*/
+
+   if(width <= 80)
+     {
+	width = 80;
+	most_narrow_width();
+     }
+   else
+     {
+	width = 132;
+	most_wide_width();
+     }
+   SLtt_Screen_Cols = width;
+
+#ifdef VMS
+    /* Assign input to a channel */
+   status = sys$assign(&devnam, &fd, 0, 0);
+   if ((status & 1) == 0)
+     exit(status);
+    /* Get current terminal characteristics */
+   status = sys$qiow(          /* Queue and wait   */
+		     0,        /* Wait on event flag zero  */
+		     fd,       /* Channel to input terminal  */
+		     IO$_SENSEMODE, /* Get current characteristic */
+		     &iostatus, /* Status after operation */
+		     0, 0,     /* No AST service   */
+		     &tc,      /* Terminal characteristics buf */
+		     sizeof(tc), /* Size of the buffer   */
+		     0, 0, 0, 0); /* P3-P6 unused     */
+
+    /*set terminal characteristics */
+   tc.t_width=width;
+   status = sys$qiow(           /* Queue and wait   */
+		     0,           /* Wait on event flag zero  */
+		     fd,           /* Channel to input terminal  */
+		     IO$_SETMODE,   /* Get current characteristic */
+		     &iostatus,       /* Status after operation */
+		     0, 0,            /* No AST service   */
+		     &tc,             /* Terminal characteristics buf */
+		     sizeof(tc),      /* Size of the buffer   */
+		     0, 0, 0, 0);     /* P3-P6 unused     */
+
+   if( (sys$dassgn(fd)  & 1)==0)
+     exit(status);
+
+    /* here we redraw the screen, on unix, we assume that the terminal
+     * driver sends the appropriate signal that most catches to redraw so we
+     * do not redraw because it is likely that screen will be redrawn twice */
+
+   if (redraw)
+     most_resize_display ();
+
+#else
+   (void) redraw;
+# ifdef TIOCGWINSZ
+    /* this may need work on other unix-- works for sun4 */
+   if (-1 != ioctl(TTY_DESCR,TIOCGWINSZ,&wind_struct))
+     {
+	wind_struct.ws_col = width;
+	ioctl(TTY_DESCR,TIOCSWINSZ,&wind_struct);
+     }
+# endif
+#endif /* VMS */
+#endif				       /* NOT IBMPC_SYSTEM */
+}

vendor/most-5.1.0/src/sysdep.h

@@ -0,0 +1,51 @@
+#ifndef __DAVIS_SYSDEP_H__
+# define __DAVIS_SYSDEP_H__
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+# include <stdio.h>
+
+# if defined(sequent) || defined(apollo)
+#  define HAS_TERMIOS 0
+# else
+#  define HAS_TERMIOS 1
+# endif
+
+# ifdef VMS
+extern int most_do_emacs_command(void);
+
+extern int most_do_shell_command();
+extern int most_expand_file_name(char *,char *);
+extern char *most_unix2vms(char *);
+
+# endif /* VMS */
+
+extern int most_reinit_terminal (void);
+extern void most_init_tty(void);
+extern void most_reset_tty(void);
+extern int most_getkey(void);
+extern void most_get_term_dimensions(int *, int *);
+extern int most_delete_file(char *);
+extern void most_set_width(int, int);
+extern char *most_get_time(void);
+
+extern void most_resize_display (void);
+#endif /* __DAVIS_SYSDEP_H__ */
+

vendor/most-5.1.0/src/version.h

@@ -0,0 +1,24 @@
+/*
+ This file is part of MOST.
+
+ Copyright (c) 2006-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+#ifndef MOST_VERSION
+#define MOST_VERSION	50100
+
+#define MOST_VERSION_STR "5.1.0"
+#endif				       /* MOST_VERSION */

vendor/most-5.1.0/src/w32conf.h

@@ -0,0 +1,39 @@
+/* -*- C -*- */
+
+/* Note: this is for DJGPP and WIN32 systems only.
+ * See mostconf.h for other systems, e.g., Unix.
+ */
+
+#ifndef MOST_CONFIG_H
+# define MOST_CONFIG_H
+
+/* define if you have stdlib.h */
+# define HAVE_STDLIB_H 1
+
+/* define if you have unistd.h */
+# define HAVE_UNISTD_H 1
+
+/* define if you have memory.h */
+# define HAVE_MEMORY_H 1
+
+/* define if you have malloc.h */
+# define HAVE_MALLOC_H 1
+
+/* define if you have memset */
+# define HAVE_MEMSET 1
+
+/* define if you have memcpy */
+# define HAVE_MEMCPY 1
+
+/* define if you have this. */
+# define HAVE_GETCWD 1
+
+# define HAVE_DIRENT_H 1
+
+# define MAX_PATHLEN 1024
+
+#define MOST_INT long
+#define MOST_UINT unsigned long
+#define MOST_INT_D_FMT "%ld"
+
+#endif /* MOST_CONFIG_H */

vendor/most-5.1.0/src/window.h

@@ -0,0 +1,88 @@
+#ifndef _DAVIS_WINDOW_H_
+# define _DAVIS_WINDOW_H_
+/*
+ This file is part of MOST.
+
+ Copyright (c) 1991, 1999, 2002, 2005-2018, 2019 John E. Davis
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., 675
+ Mass Ave, Cambridge, MA 02139, USA.
+*/
+# include "buffer.h"
+
+typedef struct _Most_Window_Type
+{
+   unsigned long top_offset; /* offset of top line of window from bob */
+   int beg_line;             /* line number of top */
+   int curs_line;            /* line number of curs pos */
+   int curs_col;             /* column number of curs pos */
+   unsigned long curs_offset;  /* pos of cursor from bob*/
+   int col;                  /* column offset */
+   int n_lines;              /* number of lines of buffer (mode dependent) */
+   int top;                  /* screen location of top */
+   int bot;                  /* screen location of bot */
+   int display;              /* value of MOST_S_OPT for selective display */
+#if 0
+   char *status;             /* status line */
+#endif
+   Most_Buffer_Type *buf;              /* buffer structure in window */
+   struct _Most_Window_Type *next; /* next window */
+   struct _Most_Window_Type *prev; /* prev window */
+   int flags;                /* Squeeze lines, etc.. */
+   int lock;                 /* true if locked */
+   int dirty_flag;
+}
+Most_Window_Type;
+
+extern Most_Window_Type *Most_Win;
+extern Most_Window_Type *Most_Top_Win;
+extern unsigned long Most_Curs_Offset;
+extern int Most_Column;
+extern int Most_Curs_Row;
+extern int Most_Curs_Col;
+#define MOST_MINI_BUF_LEN	256
+extern char Most_Mini_Buf[MOST_MINI_BUF_LEN];
+extern int Most_Selective_Display;
+extern int Most_Restore_Width_To;
+extern int Most_Display_Inited;
+
+extern int most_split_window (void);
+extern void most_toggle_lock(void);
+extern void most_update_window(int); /* moves window to have arg lines on the top */
+extern void most_update_status(void);
+extern void most_redraw_window(void);    /* redraws window updating the structure */
+extern void most_window_buffer(void);
+extern void most_init_display(void);
+extern void most_reset_display(void);
+extern void most_other_window(int);
+extern void most_set_window (Most_Window_Type *);
+extern void most_update_windows(int);
+extern void most_message(char *, int);
+extern void most_put_message(void);
+extern void most_clear_minibuffer(void);
+extern void most_check_minibuffer(void);
+extern void most_free_window_buffer(void);
+extern void most_select_minibuffer(void);
+extern void most_exit_minibuffer(void);
+extern int most_read_from_minibuffer(char *, char *, char *, unsigned int);
+extern void most_redraw_display(void);
+extern void most_one_window(void);
+extern void most_two_windows(void);
+extern void most_delete_window(void);
+extern void most_save_win_flags(Most_Window_Type *);
+extern void most_free_windows (void);
+extern void most_flush_message (char *);
+extern void most_point_cursor (void);
+#endif
+