1 CodeMirror.defineMode("go", function(config) {
2 var indentUnit = config.indentUnit;
5 "break":true, "case":true, "chan":true, "const":true, "continue":true,
6 "default":true, "defer":true, "else":true, "fallthrough":true, "for":true,
7 "func":true, "go":true, "goto":true, "if":true, "import":true,
8 "interface":true, "map":true, "package":true, "range":true, "return":true,
9 "select":true, "struct":true, "switch":true, "type":true, "var":true,
10 "bool":true, "byte":true, "complex64":true, "complex128":true,
11 "float32":true, "float64":true, "int8":true, "int16":true, "int32":true,
12 "int64":true, "string":true, "uint8":true, "uint16":true, "uint32":true,
13 "uint64":true, "int":true, "uint":true, "uintptr":true
17 "true":true, "false":true, "iota":true, "nil":true, "append":true,
18 "cap":true, "close":true, "complex":true, "copy":true, "imag":true,
19 "len":true, "make":true, "new":true, "panic":true, "print":true,
20 "println":true, "real":true, "recover":true
23 var isOperatorChar = /[+\-*&^%:=<>!|\/]/;
27 function tokenBase(stream, state) {
28 var ch = stream.next();
29 if (ch == '"' || ch == "'" || ch == "`") {
30 state.tokenize = tokenString(ch);
31 return state.tokenize(stream, state);
33 if (/[\d\.]/.test(ch)) {
35 stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
36 } else if (ch == "0") {
37 stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
39 stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
43 if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
48 if (stream.eat("*")) {
49 state.tokenize = tokenComment;
50 return tokenComment(stream, state);
52 if (stream.eat("/")) {
57 if (isOperatorChar.test(ch)) {
58 stream.eatWhile(isOperatorChar);
61 stream.eatWhile(/[\w\$_]/);
62 var cur = stream.current();
63 if (keywords.propertyIsEnumerable(cur)) {
64 if (cur == "case" || cur == "default") curPunc = "case";
67 if (atoms.propertyIsEnumerable(cur)) return "atom";
71 function tokenString(quote) {
72 return function(stream, state) {
73 var escaped = false, next, end = false;
74 while ((next = stream.next()) != null) {
75 if (next == quote && !escaped) {end = true; break;}
76 escaped = !escaped && next == "\\";
78 if (end || !(escaped || quote == "`"))
79 state.tokenize = tokenBase;
84 function tokenComment(stream, state) {
85 var maybeEnd = false, ch;
86 while (ch = stream.next()) {
87 if (ch == "/" && maybeEnd) {
88 state.tokenize = tokenBase;
91 maybeEnd = (ch == "*");
96 function Context(indented, column, type, align, prev) {
97 this.indented = indented;
103 function pushContext(state, col, type) {
104 return state.context = new Context(state.indented, col, type, null, state.context);
106 function popContext(state) {
107 var t = state.context.type;
108 if (t == ")" || t == "]" || t == "}")
109 state.indented = state.context.indented;
110 return state.context = state.context.prev;
116 startState: function(basecolumn) {
119 context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
125 token: function(stream, state) {
126 var ctx = state.context;
128 if (ctx.align == null) ctx.align = false;
129 state.indented = stream.indentation();
130 state.startOfLine = true;
131 if (ctx.type == "case") ctx.type = "}";
133 if (stream.eatSpace()) return null;
135 var style = (state.tokenize || tokenBase)(stream, state);
136 if (style == "comment") return style;
137 if (ctx.align == null) ctx.align = true;
139 if (curPunc == "{") pushContext(state, stream.column(), "}");
140 else if (curPunc == "[") pushContext(state, stream.column(), "]");
141 else if (curPunc == "(") pushContext(state, stream.column(), ")");
142 else if (curPunc == "case") ctx.type = "case";
143 else if (curPunc == "}" && ctx.type == "}") ctx = popContext(state);
144 else if (curPunc == ctx.type) popContext(state);
145 state.startOfLine = false;
149 indent: function(state, textAfter) {
150 if (state.tokenize != tokenBase && state.tokenize != null) return 0;
151 var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
152 if (ctx.type == "case" && /^(?:case|default)\b/.test(textAfter)) {
153 state.context.type = "}";
156 var closing = firstChar == ctx.type;
157 if (ctx.align) return ctx.column + (closing ? 0 : 1);
158 else return ctx.indented + (closing ? 0 : indentUnit);
161 electricChars: "{}:",
162 blockCommentStart: "/*",
163 blockCommentEnd: "*/",
168 CodeMirror.defineMIME("text/x-go", "go");