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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  (function(mod) {
   5    if (typeof exports == "object" && typeof module == "object")
   6      mod(require("../../lib/codemirror"));
   7    else if (typeof define == "function" && define.amd)
   8      define(["../../lib/codemirror"], mod);
   9    else
  10      mod(CodeMirror);
  11  })(function(CodeMirror) {
  12  "use strict";
  13  
  14  CodeMirror.defineMode('troff', function() {
  15  
  16    var words = {};
  17  
  18    function tokenBase(stream) {
  19      if (stream.eatSpace()) return null;
  20  
  21      var sol = stream.sol();
  22      var ch = stream.next();
  23  
  24      if (ch === '\\') {
  25        if (stream.match('fB') || stream.match('fR') || stream.match('fI') ||
  26            stream.match('u')  || stream.match('d')  ||
  27            stream.match('%')  || stream.match('&')) {
  28          return 'string';
  29        }
  30        if (stream.match('m[')) {
  31          stream.skipTo(']');
  32          stream.next();
  33          return 'string';
  34        }
  35        if (stream.match('s+') || stream.match('s-')) {
  36          stream.eatWhile(/[\d-]/);
  37          return 'string';
  38        }
  39        if (stream.match('\(') || stream.match('*\(')) {
  40          stream.eatWhile(/[\w-]/);
  41          return 'string';
  42        }
  43        return 'string';
  44      }
  45      if (sol && (ch === '.' || ch === '\'')) {
  46        if (stream.eat('\\') && stream.eat('\"')) {
  47          stream.skipToEnd();
  48          return 'comment';
  49        }
  50      }
  51      if (sol && ch === '.') {
  52        if (stream.match('B ') || stream.match('I ') || stream.match('R ')) {
  53          return 'attribute';
  54        }
  55        if (stream.match('TH ') || stream.match('SH ') || stream.match('SS ') || stream.match('HP ')) {
  56          stream.skipToEnd();
  57          return 'quote';
  58        }
  59        if ((stream.match(/[A-Z]/) && stream.match(/[A-Z]/)) || (stream.match(/[a-z]/) && stream.match(/[a-z]/))) {
  60          return 'attribute';
  61        }
  62      }
  63      stream.eatWhile(/[\w-]/);
  64      var cur = stream.current();
  65      return words.hasOwnProperty(cur) ? words[cur] : null;
  66    }
  67  
  68    function tokenize(stream, state) {
  69      return (state.tokens[0] || tokenBase) (stream, state);
  70    };
  71  
  72    return {
  73      startState: function() {return {tokens:[]};},
  74      token: function(stream, state) {
  75        return tokenize(stream, state);
  76      }
  77    };
  78  });
  79  
  80  CodeMirror.defineMIME('text/troff', 'troff');
  81  CodeMirror.defineMIME('text/x-troff', 'troff');
  82  CodeMirror.defineMIME('application/x-troff', 'troff');
  83  
  84  });