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Put this stuff back 

More complicated to separate out repl than I thought
This commit is contained in:
greg 2018-04-23 21:41:57 -07:00
parent 66b6ddcf93
commit b8a25dbaac
1 changed files with 3 additions and 68 deletions
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71
schala-repl/src/lib.rs
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@ -277,72 +277,6 @@ impl Repl {
writeln!(buf, "{}", lang.custom_interpreter_directives_help()).unwrap();
Some(buf)
},
_ => self.languages[self.current_language_index].handle_custom_interpreter_directives(&commands),
}
}
/*
fn handle_interpreter_directive(&mut self, input: &str) -> Option<String> {
let mut iter = input.chars();
iter.next();
let commands: Vec<&str> = iter
.as_str()
.split_whitespace()
.collect();
let cmd: &str = match commands.get(0).clone() {
None => return None,
Some(s) => s
};
match cmd {
"exit" | "quit" => {
self.save_options();
exit(0)
},
"help" => {
Some(r#"Commands:
exit | quit
lang(uage) [go|show|next|previous]
set [show|hide] [tokens|parse|symbols|eval|llvm]
options"#.to_string())
}
"lang" | "language" => {
match commands.get(1) {
Some(&"show") => {
let mut buf = String::new();
for (i, lang) in self.languages.iter().enumerate() {
write!(buf, "{}{}\n", if i == self.current_language_index { "* "} else { "" }, lang.get_language_name()).unwrap();
}
Some(buf)
},
Some(&"go") => {
match commands.get(2) {
None => Some(format!("Must specify a language name")),
Some(&desired_name) => {
for (i, _) in self.languages.iter().enumerate() {
let lang_name = self.languages[i].get_language_name();
if lang_name.to_lowercase() == desired_name.to_lowercase() {
self.current_language_index = i;
return Some(format!("Switching to {}", self.languages[self.current_language_index].get_language_name()));
}
}
Some(format!("Language {} not found", desired_name))
}
}
},
Some(&"next") => {
self.current_language_index = (self.current_language_index + 1) % self.languages.len();
Some(format!("Switching to {}", self.languages[self.current_language_index].get_language_name()))
}
Some(&"prev") | Some(&"previous") => {
self.current_language_index = if self.current_language_index == 0 { self.languages.len() - 1 } else { self.current_language_index - 1 };
Some(format!("Switching to {}", self.languages[self.current_language_index].get_language_name()))
},
Some(e) => Some(format!("Bad `lang` argument: {}", e)),
None => Some(format!("`lang` - valid arguments `show`, `next`, `prev`|`previous`")),
}
},
"set" => {
let show = match commands.get(1) {
Some(&"show") => true,
@ -374,10 +308,11 @@ options"#.to_string())
Some(format!(r#"Debug:
tokens: {}, parse: {}, ast: {}, symbols: {}"#, tokens, parse_tree, ast, symbol_table))
},
e => Some(format!("Unknown command: {}", e))
e => self.languages[self.current_language_index]
.handle_custom_interpreter_directives(&commands)
.or(Some(format!("Unknown command: {}", e)))
}
}
*/
}
/*