1 /* Just enough of CodeMirror to run runMode under node.js */
3 function splitLines(string){ return string.split(/\r?\n|\r/); };
5 function StringStream(string) {
6 this.pos = this.start = 0;
9 StringStream.prototype = {
10 eol: function() {return this.pos >= this.string.length;},
11 sol: function() {return this.pos == 0;},
12 peek: function() {return this.string.charAt(this.pos) || null;},
14 if (this.pos < this.string.length)
15 return this.string.charAt(this.pos++);
17 eat: function(match) {
18 var ch = this.string.charAt(this.pos);
19 if (typeof match == "string") var ok = ch == match;
20 else var ok = ch && (match.test ? match.test(ch) : match(ch));
21 if (ok) {++this.pos; return ch;}
23 eatWhile: function(match) {
25 while (this.eat(match)){}
26 return this.pos > start;
28 eatSpace: function() {
30 while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
31 return this.pos > start;
33 skipToEnd: function() {this.pos = this.string.length;},
34 skipTo: function(ch) {
35 var found = this.string.indexOf(ch, this.pos);
36 if (found > -1) {this.pos = found; return true;}
38 backUp: function(n) {this.pos -= n;},
39 column: function() {return this.start;},
40 indentation: function() {return 0;},
41 match: function(pattern, consume, caseInsensitive) {
42 if (typeof pattern == "string") {
43 var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
44 var substr = this.string.substr(this.pos, pattern.length);
45 if (cased(substr) == cased(pattern)) {
46 if (consume !== false) this.pos += pattern.length;
50 var match = this.string.slice(this.pos).match(pattern);
51 if (match && match.index > 0) return null;
52 if (match && consume !== false) this.pos += match[0].length;
56 current: function(){return this.string.slice(this.start, this.pos);}
58 exports.StringStream = StringStream;
60 exports.startState = function(mode, a1, a2) {
61 return mode.startState ? mode.startState(a1, a2) : true;
64 var modes = exports.modes = {}, mimeModes = exports.mimeModes = {};
65 exports.defineMode = function(name, mode) {
66 if (arguments.length > 2) {
67 mode.dependencies = [];
68 for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
72 exports.defineMIME = function(mime, spec) { mimeModes[mime] = spec; };
74 exports.defineMode("null", function() {
75 return {token: function(stream) {stream.skipToEnd();}};
77 exports.defineMIME("text/plain", "null");
79 exports.getMode = function(options, spec) {
80 if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
81 spec = mimeModes[spec];
82 if (typeof spec == "string")
83 var mname = spec, config = {};
84 else if (spec != null)
85 var mname = spec.name, config = spec;
86 var mfactory = modes[mname];
87 if (!mfactory) throw new Error("Unknown mode: " + spec);
88 return mfactory(options, config || {});
91 exports.runMode = function(string, modespec, callback) {
92 var mode = exports.getMode({indentUnit: 2}, modespec);
93 var lines = splitLines(string), state = exports.startState(mode);
94 for (var i = 0, e = lines.length; i < e; ++i) {
95 if (i) callback("\n");
96 var stream = new exports.StringStream(lines[i]);
97 while (!stream.eol()) {
98 var style = mode.token(stream, state);
99 callback(stream.current(), style, i, stream.start);
100 stream.start = stream.pos;