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yaml.js (3693B)

      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("yaml", function() {
     15 
     16   var cons = ['true', 'false', 'on', 'off', 'yes', 'no'];
     17   var keywordRegex = new RegExp("\\b(("+cons.join(")|(")+"))$", 'i');
     18 
     19   return {
     20     token: function(stream, state) {
     21       var ch = stream.peek();
     22       var esc = state.escaped;
     23       state.escaped = false;
     24       /* comments */
     25       if (ch == "#" && (stream.pos == 0 || /\s/.test(stream.string.charAt(stream.pos - 1)))) {
     26         stream.skipToEnd();
     27         return "comment";
     28       }
     29 
     30       if (stream.match(/^('([^']|\\.)*'?|"([^"]|\\.)*"?)/))
     31         return "string";
     32 
     33       if (state.literal && stream.indentation() > state.keyCol) {
     34         stream.skipToEnd(); return "string";
     35       } else if (state.literal) { state.literal = false; }
     36       if (stream.sol()) {
     37         state.keyCol = 0;
     38         state.pair = false;
     39         state.pairStart = false;
     40         /* document start */
     41         if(stream.match(/---/)) { return "def"; }
     42         /* document end */
     43         if (stream.match(/\.\.\./)) { return "def"; }
     44         /* array list item */
     45         if (stream.match(/\s*-\s+/)) { return 'meta'; }
     46       }
     47       /* inline pairs/lists */
     48       if (stream.match(/^(\{|\}|\[|\])/)) {
     49         if (ch == '{')
     50           state.inlinePairs++;
     51         else if (ch == '}')
     52           state.inlinePairs--;
     53         else if (ch == '[')
     54           state.inlineList++;
     55         else
     56           state.inlineList--;
     57         return 'meta';
     58       }
     59 
     60       /* list seperator */
     61       if (state.inlineList > 0 && !esc && ch == ',') {
     62         stream.next();
     63         return 'meta';
     64       }
     65       /* pairs seperator */
     66       if (state.inlinePairs > 0 && !esc && ch == ',') {
     67         state.keyCol = 0;
     68         state.pair = false;
     69         state.pairStart = false;
     70         stream.next();
     71         return 'meta';
     72       }
     73 
     74       /* start of value of a pair */
     75       if (state.pairStart) {
     76         /* block literals */
     77         if (stream.match(/^\s*(\||\>)\s*/)) { state.literal = true; return 'meta'; };
     78         /* references */
     79         if (stream.match(/^\s*(\&|\*)[a-z0-9\._-]+\b/i)) { return 'variable-2'; }
     80         /* numbers */
     81         if (state.inlinePairs == 0 && stream.match(/^\s*-?[0-9\.\,]+\s?$/)) { return 'number'; }
     82         if (state.inlinePairs > 0 && stream.match(/^\s*-?[0-9\.\,]+\s?(?=(,|}))/)) { return 'number'; }
     83         /* keywords */
     84         if (stream.match(keywordRegex)) { return 'keyword'; }
     85       }
     86 
     87       /* pairs (associative arrays) -> key */
     88       if (!state.pair && stream.match(/^\s*(?:[,\[\]{}&*!|>'"%@`][^\s'":]|[^,\[\]{}#&*!|>'"%@`])[^#]*?(?=\s*:($|\s))/)) {
     89         state.pair = true;
     90         state.keyCol = stream.indentation();
     91         return "atom";
     92       }
     93       if (state.pair && stream.match(/^:\s*/)) { state.pairStart = true; return 'meta'; }
     94 
     95       /* nothing found, continue */
     96       state.pairStart = false;
     97       state.escaped = (ch == '\\');
     98       stream.next();
     99       return null;
    100     },
    101     startState: function() {
    102       return {
    103         pair: false,
    104         pairStart: false,
    105         keyCol: 0,
    106         inlinePairs: 0,
    107         inlineList: 0,
    108         literal: false,
    109         escaped: false
    110       };
    111     }
    112   };
    113 });
    114 
    115 CodeMirror.defineMIME("text/x-yaml", "yaml");
    116 CodeMirror.defineMIME("text/yaml", "yaml");
    117 
    118 });