:help command working
This commit is contained in:
parent
32d082e119
commit
7097775a4a
@ -54,14 +54,17 @@ impl CommandTree {
|
||||
CommandTree::Top(_) => ""
|
||||
}
|
||||
}
|
||||
pub fn get_children(&self) -> Vec<&str> {
|
||||
pub fn get_children(&self) -> &Vec<CommandTree> {
|
||||
use CommandTree::*;
|
||||
match self {
|
||||
Terminal { children, .. } |
|
||||
NonTerminal { children, .. } |
|
||||
Top(children) => children.iter().map(|x| x.get_cmd()).collect()
|
||||
Top(children) => children
|
||||
}
|
||||
}
|
||||
pub fn get_subcommands(&self) -> Vec<&str> {
|
||||
self.get_children().iter().map(|x| x.get_cmd()).collect()
|
||||
}
|
||||
|
||||
pub fn perform(&self, repl: &mut Repl, arguments: &Vec<&str>) -> InterpreterDirectiveOutput {
|
||||
let mut dir_pointer: &CommandTree = self;
|
||||
|
@ -1,31 +1,39 @@
|
||||
use std::fmt::Write as FmtWrite;
|
||||
|
||||
use super::{Repl, InterpreterDirectiveOutput};
|
||||
use crate::repl::command_tree::CommandTree;
|
||||
|
||||
pub fn help(repl: &mut Repl, arguments: &[&str]) -> InterpreterDirectiveOutput {
|
||||
let mut buf = String::new();
|
||||
let directives = match repl.get_directives() {
|
||||
CommandTree::Top(children) => children,
|
||||
_ => panic!("Top-level CommandTree not Top")
|
||||
};
|
||||
|
||||
match arguments {
|
||||
[] => return global_help(repl, &directives),
|
||||
_ => {
|
||||
writeln!(buf, "Command-specific help not available yet").unwrap();
|
||||
[] => return global_help(repl),
|
||||
commands => {
|
||||
let dirs = repl.get_directives();
|
||||
let mut directive_list = dirs.get_children();
|
||||
let mut matched_directive = None;
|
||||
for cmd in commands {
|
||||
let found = directive_list.iter().find(|directive| directive.get_cmd() == *cmd);
|
||||
if let Some(dir) = found {
|
||||
directive_list = dir.get_children();
|
||||
}
|
||||
|
||||
matched_directive = found;
|
||||
}
|
||||
|
||||
Some(if let Some(dir) = matched_directive {
|
||||
format!("{}", dir.get_help())
|
||||
} else {
|
||||
format!("Last command not found")
|
||||
})
|
||||
}
|
||||
};
|
||||
Some(buf)
|
||||
}
|
||||
}
|
||||
|
||||
fn global_help(repl: &mut Repl, directives: &Vec<CommandTree>) -> InterpreterDirectiveOutput {
|
||||
fn global_help(repl: &mut Repl) -> InterpreterDirectiveOutput {
|
||||
let mut buf = String::new();
|
||||
|
||||
writeln!(buf, "MetaInterpreter options").unwrap();
|
||||
writeln!(buf, "-----------------------").unwrap();
|
||||
|
||||
for directive in directives {
|
||||
for directive in repl.get_directives().get_children() {
|
||||
let trailer = " ";
|
||||
writeln!(buf, "{}{}- {}", directive.get_cmd(), trailer, directive.get_help()).unwrap();
|
||||
}
|
||||
|
@ -220,7 +220,7 @@ impl<T: Terminal> Completer<T> for TabCompleteHandler {
|
||||
_ => false
|
||||
};
|
||||
let word = if top { word.get(1..).unwrap() } else { word };
|
||||
for cmd in command_tree.map(|x| x.get_children()).unwrap_or(vec![]).into_iter() {
|
||||
for cmd in command_tree.map(|x| x.get_subcommands()).unwrap_or(vec![]).into_iter() {
|
||||
if cmd.starts_with(word) {
|
||||
completions.push(Completion {
|
||||
completion: format!("{}{}", if top { ":" } else { "" }, cmd),
|
||||
|
Loading…
Reference in New Issue
Block a user