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authorEric Guzman2012-02-16 00:22:43 -0800
committerEric Guzman2012-02-16 00:22:43 -0800
commit82b1a273219f0ae3d119e156c7acccdbe478f441 (patch)
tree74c45e5e3afc6706b2f7a7918807f72c54cdcfc5 /imports/codemirror/mode/javascript/javascript.js
parentaf20ca9b11133dd5cefb9275dbe8fb101c3380d0 (diff)
parent966f0adaf1d4b7f2dd5a6e31643df58bff713884 (diff)
downloadninja-82b1a273219f0ae3d119e156c7acccdbe478f441.tar.gz
Merge branch 'refs/heads/TreeComponents' into PresetsPanel
Diffstat (limited to 'imports/codemirror/mode/javascript/javascript.js')
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1 files changed, 360 insertions, 0 deletions
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1CodeMirror.defineMode("javascript", function(config, parserConfig) {
2 var indentUnit = config.indentUnit;
3 var jsonMode = parserConfig.json;
4
5 // Tokenizer
6
7 var keywords = function(){
8 function kw(type) {return {type: type, style: "keyword"};}
9 var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
10 var operator = kw("operator"), atom = {type: "atom", style: "atom"};
11 return {
12 "if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
13 "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C,
14 "var": kw("var"), "const": kw("var"), "let": kw("var"),
15 "function": kw("function"), "catch": kw("catch"),
16 "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
17 "in": operator, "typeof": operator, "instanceof": operator,
18 "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom
19 };
20 }();
21
22 var isOperatorChar = /[+\-*&%=<>!?|]/;
23
24 function chain(stream, state, f) {
25 state.tokenize = f;
26 return f(stream, state);
27 }
28
29 function nextUntilUnescaped(stream, end) {
30 var escaped = false, next;
31 while ((next = stream.next()) != null) {
32 if (next == end && !escaped)
33 return false;
34 escaped = !escaped && next == "\\";
35 }
36 return escaped;
37 }
38
39 // Used as scratch variables to communicate multiple values without
40 // consing up tons of objects.
41 var type, content;
42 function ret(tp, style, cont) {
43 type = tp; content = cont;
44 return style;
45 }
46
47 function jsTokenBase(stream, state) {
48 var ch = stream.next();
49 if (ch == '"' || ch == "'")
50 return chain(stream, state, jsTokenString(ch));
51 else if (/[\[\]{}\(\),;\:\.]/.test(ch))
52 return ret(ch);
53 else if (ch == "0" && stream.eat(/x/i)) {
54 stream.eatWhile(/[\da-f]/i);
55 return ret("number", "number");
56 }
57 else if (/\d/.test(ch)) {
58 stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
59 return ret("number", "number");
60 }
61 else if (ch == "/") {
62 if (stream.eat("*")) {
63 return chain(stream, state, jsTokenComment);
64 }
65 else if (stream.eat("/")) {
66 stream.skipToEnd();
67 return ret("comment", "comment");
68 }
69 else if (state.reAllowed) {
70 nextUntilUnescaped(stream, "/");
71 stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
72 return ret("regexp", "string");
73 }
74 else {
75 stream.eatWhile(isOperatorChar);
76 return ret("operator", null, stream.current());
77 }
78 }
79 else if (ch == "#") {
80 stream.skipToEnd();
81 return ret("error", "error");
82 }
83 else if (isOperatorChar.test(ch)) {
84 stream.eatWhile(isOperatorChar);
85 return ret("operator", null, stream.current());
86 }
87 else {
88 stream.eatWhile(/[\w\$_]/);
89 var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
90 return (known && state.kwAllowed) ? ret(known.type, known.style, word) :
91 ret("variable", "variable", word);
92 }
93 }
94
95 function jsTokenString(quote) {
96 return function(stream, state) {
97 if (!nextUntilUnescaped(stream, quote))
98 state.tokenize = jsTokenBase;
99 return ret("string", "string");
100 };
101 }
102
103 function jsTokenComment(stream, state) {
104 var maybeEnd = false, ch;
105 while (ch = stream.next()) {
106 if (ch == "/" && maybeEnd) {
107 state.tokenize = jsTokenBase;
108 break;
109 }
110 maybeEnd = (ch == "*");
111 }
112 return ret("comment", "comment");
113 }
114
115 // Parser
116
117 var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
118
119 function JSLexical(indented, column, type, align, prev, info) {
120 this.indented = indented;
121 this.column = column;
122 this.type = type;
123 this.prev = prev;
124 this.info = info;
125 if (align != null) this.align = align;
126 }
127
128 function inScope(state, varname) {
129 for (var v = state.localVars; v; v = v.next)
130 if (v.name == varname) return true;
131 }
132
133 function parseJS(state, style, type, content, stream) {
134 var cc = state.cc;
135 // Communicate our context to the combinators.
136 // (Less wasteful than consing up a hundred closures on every call.)
137 cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
138
139 if (!state.lexical.hasOwnProperty("align"))
140 state.lexical.align = true;
141
142 while(true) {
143 var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
144 if (combinator(type, content)) {
145 while(cc.length && cc[cc.length - 1].lex)
146 cc.pop()();
147 if (cx.marked) return cx.marked;
148 if (type == "variable" && inScope(state, content)) return "variable-2";
149 return style;
150 }
151 }
152 }
153
154 // Combinator utils
155
156 var cx = {state: null, column: null, marked: null, cc: null};
157 function pass() {
158 for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
159 }
160 function cont() {
161 pass.apply(null, arguments);
162 return true;
163 }
164 function register(varname) {
165 var state = cx.state;
166 if (state.context) {
167 cx.marked = "def";
168 for (var v = state.localVars; v; v = v.next)
169 if (v.name == varname) return;
170 state.localVars = {name: varname, next: state.localVars};
171 }
172 }
173
174 // Combinators
175
176 var defaultVars = {name: "this", next: {name: "arguments"}};
177 function pushcontext() {
178 if (!cx.state.context) cx.state.localVars = defaultVars;
179 cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
180 }
181 function popcontext() {
182 cx.state.localVars = cx.state.context.vars;
183 cx.state.context = cx.state.context.prev;
184 }
185 function pushlex(type, info) {
186 var result = function() {
187 var state = cx.state;
188 state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info)
189 };
190 result.lex = true;
191 return result;
192 }
193 function poplex() {
194 var state = cx.state;
195 if (state.lexical.prev) {
196 if (state.lexical.type == ")")
197 state.indented = state.lexical.indented;
198 state.lexical = state.lexical.prev;
199 }
200 }
201 poplex.lex = true;
202
203 function expect(wanted) {
204 return function expecting(type) {
205 if (type == wanted) return cont();
206 else if (wanted == ";") return pass();
207 else return cont(arguments.callee);
208 };
209 }
210
211 function statement(type) {
212 if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
213 if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
214 if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
215 if (type == "{") return cont(pushlex("}"), block, poplex);
216 if (type == ";") return cont();
217 if (type == "function") return cont(functiondef);