third_party/WebKit/Source/devtools/front_end/cm_modes/shell.js

   1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2 // Distributed under an MIT license: http://codemirror.net/LICENSE
   3
   4 (function(mod) {
   5   if (typeof exports == "object" && typeof module == "object") // CommonJS
   6     mod(require("../../lib/codemirror"));
   7   else if (typeof define == "function" && define.amd) // AMD
   8     define(["../../lib/codemirror"], mod);
   9   else // Plain browser env
  10     mod(CodeMirror);
  11 })(function(CodeMirror) {
  12 "use strict";
  13
  14 CodeMirror.defineMode('shell', function() {
  15
  16   var words = {};
  17   function define(style, string) {
  18     var split = string.split(' ');
  19     for(var i = 0; i < split.length; i++) {
  20       words[split[i]] = style;
  21     }
  22   };
  23
  24   // Atoms
  25   define('atom', 'true false');
  26
  27   // Keywords
  28   define('keyword', 'if then do else elif while until for in esac fi fin ' +
  29     'fil done exit set unset export function');
  30
  31   // Commands
  32   define('builtin', 'ab awk bash beep cat cc cd chown chmod chroot clear cp ' +
  33     'curl cut diff echo find gawk gcc get git grep kill killall ln ls make ' +
  34     'mkdir openssl mv nc node npm ping ps restart rm rmdir sed service sh ' +
  35     'shopt shred source sort sleep ssh start stop su sudo tee telnet top ' +
  36     'touch vi vim wall wc wget who write yes zsh');
  37
  38   function tokenBase(stream, state) {
  39     if (stream.eatSpace()) return null;
  40
  41     var sol = stream.sol();
  42     var ch = stream.next();
  43
  44     if (ch === '\\') {
  45       stream.next();
  46       return null;
  47     }
  48     if (ch === '\'' || ch === '"' || ch === '`') {
  49       state.tokens.unshift(tokenString(ch));
  50       return tokenize(stream, state);
  51     }
  52     if (ch === '#') {
  53       if (sol && stream.eat('!')) {
  54         stream.skipToEnd();
  55         return 'meta'; // 'comment'?
  56       }
  57       stream.skipToEnd();
  58       return 'comment';
  59     }
  60     if (ch === '$') {
  61       state.tokens.unshift(tokenDollar);
  62       return tokenize(stream, state);
  63     }
  64     if (ch === '+' || ch === '=') {
  65       return 'operator';
  66     }
  67     if (ch === '-') {
  68       stream.eat('-');
  69       stream.eatWhile(/\w/);
  70       return 'attribute';
  71     }
  72     if (/\d/.test(ch)) {
  73       stream.eatWhile(/\d/);
  74       if(stream.eol() || !/\w/.test(stream.peek())) {
  75         return 'number';
  76       }
  77     }
  78     stream.eatWhile(/[\w-]/);
  79     var cur = stream.current();
  80     if (stream.peek() === '=' && /\w+/.test(cur)) return 'def';
  81     return words.hasOwnProperty(cur) ? words[cur] : null;
  82   }
  83
  84   function tokenString(quote) {
  85     return function(stream, state) {
  86       var next, end = false, escaped = false;
  87       while ((next = stream.next()) != null) {
  88         if (next === quote && !escaped) {
  89           end = true;
  90           break;
  91         }
  92         if (next === '$' && !escaped && quote !== '\'') {
  93           escaped = true;
  94           stream.backUp(1);
  95           state.tokens.unshift(tokenDollar);
  96           break;
  97         }
  98         escaped = !escaped && next === '\\';
  99       }
 100       if (end || !escaped) {
 101         state.tokens.shift();
 102       }
 103       return (quote === '`' || quote === ')' ? 'quote' : 'string');
 104     };
 105   };
 106
 107   var tokenDollar = function(stream, state) {
 108     if (state.tokens.length > 1) stream.eat('$');
 109     var ch = stream.next(), hungry = /\w/;
 110     if (ch === '{') hungry = /[^}]/;
 111     if (ch === '(') {
 112       state.tokens[0] = tokenString(')');
 113       return tokenize(stream, state);
 114     }
 115     if (!/\d/.test(ch)) {
 116       stream.eatWhile(hungry);
 117       stream.eat('}');
 118     }
 119     state.tokens.shift();
 120     return 'def';
 121   };
 122
 123   function tokenize(stream, state) {
 124     return (state.tokens[0] || tokenBase) (stream, state);
 125   };
 126
 127   return {
 128     startState: function() {return {tokens:[]};},
 129     token: function(stream, state) {
 130       return tokenize(stream, state);
 131     }
 132   };
 133 });
 134
 135 CodeMirror.defineMIME('text/x-sh', 'shell');
 136
 137 });