Rosetta Code/Fix code tags: Difference between revisions

=={{header|Rust}}==

<lang rust>

extern crate regex;

use std::io;

use std::io::prelude::*;

use regex::Regex;

const LANGUAGES: &str =

"_div abap actionscript actionscript3 ada apache applescript apt_sources asm asp autoit \

avisynth bash basic4gl bf blitzbasic bnf boo c c_mac caddcl cadlisp cfdg cfm cil cobol cpp \

cpp-qt csharp css d delphi diff dos dot eiffel email fortran freebasic genero gettext glsl \

gml gnuplot groovy haskell hq9plus html4strict idl ini inno intercal io java java5 \

javascript kixtart klonec klonecpp latex lisp lolcode lotusformulas lotusscript lscript lua \

m68k make matlab mirc modula3 mpasm mxml mysql nsis objc ocaml ocaml-brief oobas oracle11 \

oracle8 pascal per perl php php-brief pic16 pixelbender plsql povray powershell progress \

prolog providex python qbasic rails reg robots ruby rust sas scala scheme scilab sdlbasic \

smalltalk smarty sql tcl teraterm text thinbasic tsql typoscript vb vbnet verilog vhdl vim \

visualfoxpro visualprolog whitespace winbatch xml xorg_conf xpp z80";

fn fix_tags(languages: &[&str], text: &str) -> String {

let mut replaced_text = text.to_owned();

for lang in languages.iter() {

let bad_open = Regex::new(&format!("<{lang}>|<code {lang}>", lang = lang)).unwrap();

let bad_close = Regex::new(&format!("</{lang}>|</code>", lang = lang)).unwrap();

let open = format!("<lang {}>", lang);

let close = "&lt;/lang&gt;";

replaced_text = bad_open.replace_all(&replaced_text, &open[..]).into_owned();

replaced_text = bad_close

.replace_all(&replaced_text, &close[..])

.into_owned();

}

replaced_text

}

fn main() {

let stdin = io::stdin();

let mut buf = String::new();

stdin.lock().read_to_string(&mut buf).unwrap();

println!(

"{}",

fix_tags(&LANGUAGES.split_whitespace().collect::<Vec<_>>(), &buf)

);

}

</lang>