Placed all of the logic in to a header file so that it can be included

inside other applications.

	modified:   src/nms.c
	copied:     src/nms.c -> src/nms.h

src/nms.c

@@ -1,224 +1,13 @@
-#include <sys/ioctl.h>
 #include <stdio.h>
-#include <string.h>
+#include "nms.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <stdbool.h>
-#include <time.h>
-
-#define SPACE      32
-#define NEWLINE    10
-#define TAB        9
-
-#define KNRM       "\x1B[0m"
-#define KMAG       "\x1B[35m"
-#define KCYN       "\x1B[36m"
-
-struct winpos {
-	char source;
-	char mask;
-	int row;
-	int col;
-	int s1_time;
-	int s2_time;
-	struct winpos *next;
-};
-
-int getTermSizeRows(void);
-int getTermSizeCols(void);
-void clearTermWindow(int, int);
-char getMaskChar(void);
 
 int main(void) {
-	struct winpos *list_pointer = NULL;
-	struct winpos *start;                   // Always points to start of list
-	struct winpos *temp;                    // Used for free()ing the list
-	int termSizeRows = getTermSizeRows();
-	int termSizeCols = getTermSizeCols();
-	int c, x = 1, y = 1;
-	int r_time, r_time_l, r_time_s;
-	int ms, ls;
-	bool first = true;
-
-	// Seed my random number generator with the current time
-	srand(time(NULL));
-
 	// Geting input
+	int c;
 	while ((c = getchar()) != EOF) {
-		if (c == NEWLINE) {
+		nmsprintf("%c", c);
-			++y;
-			x = 1;
-		} else if (c == TAB && x + 4 <= termSizeCols) {
-			x += 4;
-		} else if (isspace(c)) {
-			if (++x > termSizeCols) {
-				++y;
-				x = 1;
-			}
-		} else {
-			if (first) {
-				list_pointer = malloc(sizeof(struct winpos));
-				start = list_pointer;
-				first = false;
-			} else {
-				list_pointer->next = malloc(sizeof(struct winpos));
-				list_pointer = list_pointer->next;
-			}
-
-			r_time = rand() % 50;
-			r_time_s = r_time * .25;
-			r_time_l = r_time * .75;
-			r_time *= 100;
-			r_time_s *= 100;
-			r_time_l *= 100;
-
-			list_pointer->source = c;
-			list_pointer->mask = getMaskChar();
-			list_pointer->row = y;
-			list_pointer->col = x;
-			list_pointer->s1_time = r_time > 1000 ? r_time_l : r_time;
-			list_pointer->s2_time = r_time > 1000 ? r_time_s : 0;
-			list_pointer->next = NULL;
-
-			if (++x > termSizeCols) {
-				++y;
-				x = 1;
-			}
-		}
 	}
-
+	nmsexec();
-	clearTermWindow(termSizeRows, termSizeCols);
-
-	// Initially display the characters in the terminal with a 'type effect'.
-	ms = 5;             // miliseconds, used for usleep()
-	list_pointer = start;
-	while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
-		printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
-		list_pointer->mask = getMaskChar();
-		list_pointer = list_pointer->next;
-		fflush(stdout);
-		usleep(ms * 1000);
-	}
-
-	// TODO: pause with getchar() - something about the input stream being redirected
-	// to a file is causing getchar() to immediately return here.
-	sleep(1);
-
-	// Jumble loop
-	ms = 35;           // miliseconds, used for usleep()
-	ls = 2;            // loop seconds, number of seconds to loop
-	x = 0;
-	while (x < (ls * 1000) / ms) {
-		list_pointer = start;
-		while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
-			printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
-			list_pointer->mask = getMaskChar();
-			list_pointer = list_pointer->next;
-		}
-		fflush(stdout);
-		usleep(ms * 1000);
-		++x;
-	}
-
-
-	// Reveal loop
-	ms = 100;                     // miliseconds to sleep (must always evenly divisible by 5)
-	int s1_remask_time = 500;     // time, in milliseconds, we change the mask for stage 1
-	bool loop = true;
-	while (loop) {
-		loop = false;
-		list_pointer = start;
-		while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
-			if (list_pointer->s1_time > 0) {
-				loop = true;
-				list_pointer->s1_time -= ms;
-				if (list_pointer->s1_time % s1_remask_time == 0) {
-					list_pointer->mask = getMaskChar();
-				}
-			} else if (list_pointer->s2_time > 0) {
-				loop = true;
-				list_pointer->s2_time -= ms;
-				list_pointer->mask = getMaskChar();
-			} else {
-				list_pointer->mask = list_pointer->source;
-				printf(KCYN);
-			}
-			printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
-			printf(KNRM);
-			list_pointer = list_pointer->next;
-		}
-		fflush(stdout);
-		usleep(ms * 1000);
-	}
-
-	printf("\n");
-
-	// Printing remaining characters from list if we stopped short due to 
-	// a terminal row limitation. i.e. the number of textual rows in the input
-	// stream were greater than the number of rows in the terminal.
-	int prevRow;
-	if (list_pointer != NULL) {
-		prevRow = list_pointer->row;
-		printf(KCYN);
-		while (list_pointer != NULL) {
-			while (list_pointer->row > prevRow) {
-				printf("\n");
-				++prevRow;
-			}
-			printf("\033[%i;%iH%c", termSizeRows, list_pointer->col, list_pointer->source);
-			list_pointer = list_pointer->next;
-		}
-		printf(KNRM);
-		printf("\n");
-	}
-
-
-	// Freeing the list. 
-	list_pointer = start;
-	while (list_pointer != NULL) {
-		temp = list_pointer;
-		list_pointer = list_pointer->next;
-		free(temp);
-	}
-	
 
 	return 0;
 }
-
-int getTermSizeRows(void) {
-    struct winsize w;
-    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
-
-	return w.ws_row;
-}
-
-int getTermSizeCols(void) {
-    struct winsize w;
-    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
-
-	return w.ws_col;
-}
-
-void clearTermWindow(int pRows, int pCols) {
-	int row, col;
-
-	// Clearing window
-	for (row = 1; row <= pRows; ++row) {
-		for (col = 1; col <= pCols; ++col)
-			printf("\033[%i;%iH%c", row, col, SPACE);
-		printf("\033[%i;%iH%c", row, col, NEWLINE);
-	}
-
-	// Position cursor at the top
-	printf("\033[%i;%iH", 1, 1);
-}
-
-char getMaskChar(void) {
-	char *maskChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	                  "abcdefghijklmnopqrstuvwxyz"
-	                  "1234567890"
-	                  "!@#$%^&*()-_=+{}[]:;|\\\"'<>,.?/";
-
-	return maskChars[rand() % strlen(maskChars)];
-}

src/nms.h

@@ -0,0 +1,247 @@
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdbool.h>
+#include <time.h>
+#include <stdarg.h>
+
+#define SPACE      32
+#define NEWLINE    10
+#define TAB        9
+
+#define KNRM       "\x1B[0m"
+#define KMAG       "\x1B[35m"
+#define KCYN       "\x1B[36m"
+
+struct winpos {
+	char source;
+	char mask;
+	int row;
+	int col;
+	int s1_time;
+	int s2_time;
+	struct winpos *next;
+};
+
+char nmsprintBuffer[10000];
+char *display = NULL;
+
+int getTermSizeRows(void);
+int getTermSizeCols(void);
+void clearTermWindow(int, int);
+char getMaskChar(void);
+void nmsexec(void);
+void nmsprintf(const char *, ...);
+
+void nmsprintf(const char *format, ...) {
+	va_list argp;
+	va_start(argp, format);
+	vsprintf(nmsprintBuffer, format, argp);
+	va_end(argp);
+
+	if (display == NULL) {
+		display = malloc(strlen(nmsprintBuffer) + 1);
+		strcpy(display, nmsprintBuffer);
+	} else {
+		display = realloc(display, strlen(display) + strlen(nmsprintBuffer) + 1);
+		strcat(display, nmsprintBuffer);
+	}
+}
+
+
+void nmsexec(void) {
+	struct winpos *list_pointer = NULL;
+	struct winpos *start;                   // Always points to start of list
+	struct winpos *temp;                    // Used for free()ing the list
+	int termSizeRows = getTermSizeRows();
+	int termSizeCols = getTermSizeCols();
+	int c, n, x = 1, y = 1;
+	int r_time, r_time_l, r_time_s;
+	int ms, ls;
+	bool first = true;
+
+	// Seed my random number generator with the current time
+	srand(time(NULL));
+
+	// Geting input
+	n = 0;
+	while ((c = display[n++]) != '\0') {
+		if (c == NEWLINE) {
+			++y;
+			x = 1;
+		} else if (c == TAB && x + 4 <= termSizeCols) {
+			x += 4;
+		} else if (isspace(c)) {
+			if (++x > termSizeCols) {
+				++y;
+				x = 1;
+			}
+		} else {
+			if (first) {
+				list_pointer = malloc(sizeof(struct winpos));
+				start = list_pointer;
+				first = false;
+			} else {
+				list_pointer->next = malloc(sizeof(struct winpos));
+				list_pointer = list_pointer->next;
+			}
+
+			r_time = rand() % 50;
+			r_time_s = r_time * .25;
+			r_time_l = r_time * .75;
+			r_time *= 100;
+			r_time_s *= 100;
+			r_time_l *= 100;
+
+			list_pointer->source = c;
+			list_pointer->mask = getMaskChar();
+			list_pointer->row = y;
+			list_pointer->col = x;
+			list_pointer->s1_time = r_time > 1000 ? r_time_l : r_time;
+			list_pointer->s2_time = r_time > 1000 ? r_time_s : 0;
+			list_pointer->next = NULL;
+
+			if (++x > termSizeCols) {
+				++y;
+				x = 1;
+			}
+		}
+	}
+
+	// Freeing the display chharacter array
+	free(display);
+
+	clearTermWindow(termSizeRows, termSizeCols);
+
+	// Initially display the characters in the terminal with a 'type effect'.
+	ms = 5;             // miliseconds, used for usleep()
+	list_pointer = start;
+	while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
+		printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
+		list_pointer->mask = getMaskChar();
+		list_pointer = list_pointer->next;
+		fflush(stdout);
+		usleep(ms * 1000);
+	}
+
+	// TODO: pause with getchar() - something about the input stream being redirected
+	// to a file is causing getchar() to immediately return here.
+	sleep(1);
+
+	// Jumble loop
+	ms = 35;           // miliseconds, used for usleep()
+	ls = 2;            // loop seconds, number of seconds to loop
+	x = 0;
+	while (x < (ls * 1000) / ms) {
+		list_pointer = start;
+		while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
+			printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
+			list_pointer->mask = getMaskChar();
+			list_pointer = list_pointer->next;
+		}
+		fflush(stdout);
+		usleep(ms * 1000);
+		++x;
+	}
+
+
+	// Reveal loop
+	ms = 100;                     // miliseconds to sleep (must always evenly divisible by 5)
+	int s1_remask_time = 500;     // time, in milliseconds, we change the mask for stage 1
+	bool loop = true;
+	while (loop) {
+		loop = false;
+		list_pointer = start;
+		while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
+			if (list_pointer->s1_time > 0) {
+				loop = true;
+				list_pointer->s1_time -= ms;
+				if (list_pointer->s1_time % s1_remask_time == 0) {
+					list_pointer->mask = getMaskChar();
+				}
+			} else if (list_pointer->s2_time > 0) {
+				loop = true;
+				list_pointer->s2_time -= ms;
+				list_pointer->mask = getMaskChar();
+			} else {
+				list_pointer->mask = list_pointer->source;
+				printf(KCYN);
+			}
+			printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
+			printf(KNRM);
+			list_pointer = list_pointer->next;
+		}
+		fflush(stdout);
+		usleep(ms * 1000);
+	}
+
+	printf("\n");
+
+	// Printing remaining characters from list if we stopped short due to 
+	// a terminal row limitation. i.e. the number of textual rows in the input
+	// stream were greater than the number of rows in the terminal.
+	int prevRow;
+	if (list_pointer != NULL) {
+		prevRow = list_pointer->row;
+		printf(KCYN);
+		while (list_pointer != NULL) {
+			while (list_pointer->row > prevRow) {
+				printf("\n");
+				++prevRow;
+			}
+			printf("\033[%i;%iH%c", termSizeRows, list_pointer->col, list_pointer->source);
+			list_pointer = list_pointer->next;
+		}
+		printf(KNRM);
+		printf("\n");
+	}
+
+
+	// Freeing the list. 
+	list_pointer = start;
+	while (list_pointer != NULL) {
+		temp = list_pointer;
+		list_pointer = list_pointer->next;
+		free(temp);
+	}
+}
+
+int getTermSizeRows(void) {
+    struct winsize w;
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+
+	return w.ws_row;
+}
+
+int getTermSizeCols(void) {
+    struct winsize w;
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+
+	return w.ws_col;
+}
+
+void clearTermWindow(int pRows, int pCols) {
+	int row, col;
+
+	// Clearing window
+	for (row = 1; row <= pRows; ++row) {
+		for (col = 1; col <= pCols; ++col)
+			printf("\033[%i;%iH%c", row, col, SPACE);
+		printf("\033[%i;%iH%c", row, col, NEWLINE);
+	}
+
+	// Position cursor at the top
+	printf("\033[%i;%iH", 1, 1);
+}
+
+char getMaskChar(void) {
+	char *maskChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	                  "abcdefghijklmnopqrstuvwxyz"
+	                  "1234567890"
+	                  "!@#$%^&*()-_=+{}[]:;|\\\"'<>,.?/";
+
+	return maskChars[rand() % strlen(maskChars)];
+}