1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
CodeMirror.defineMode("ruby", function(config) {
function wordObj(words) {
var o = {};
for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
return o;
}
var keywords = wordObj([
"alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else",
"elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or",
"redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless",
"until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc",
"caller", "lambda", "proc", "public", "protected", "private", "require", "load",
"require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__"
]);
var indentWords = wordObj(["def", "class", "case", "for", "while", "module", "then",
"catch", "loop", "proc", "begin"]);
var dedentWords = wordObj(["end", "until"]);
var matching = {"[": "]", "{": "}", "(": ")"};
var curPunc;
function chain(newtok, stream, state) {
state.tokenize.push(newtok);
return newtok(stream, state);
}
function tokenBase(stream, state) {
curPunc = null;
if (stream.sol() && stream.match("=begin") && stream.eol()) {
state.tokenize.push(readBlockComment);
return "comment";
}
if (stream.eatSpace()) return null;
var ch = stream.next(), m;
if (ch == "`" || ch == "'" || ch == '"') {
return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state);
} else if (ch == "/" && !stream.eol() && stream.peek() != " ") {
if (stream.eat("=")) return "operator";
return chain(readQuoted(ch, "string-2", true), stream, state);
} else if (ch == "%") {
var style = "string", embed = true;
if (stream.eat("s")) style = "atom";
else if (stream.eat(/[WQ]/)) style = "string";
else if (stream.eat(/[r]/)) style = "string-2";
else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; }
var delim = stream.eat(/[^\w\s]/);
if (!delim) return "operator";
if (matching.propertyIsEnumerable(delim)) delim = matching[delim];
return chain(readQuoted(delim, style, embed, true), stream, state);
} else if (ch == "#") {
stream.skipToEnd();
return "comment";
} else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
return chain(readHereDoc(m[1]), stream, state);
} else if (ch == "0") {
if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/);
else if (stream.eat("b")) stream.eatWhile(/[01]/);
else stream.eatWhile(/[0-7]/);
return "number";
} else if (/\d/.test(ch)) {
stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/);
return "number";
} else if (ch == "?") {
while (stream.match(/^\\[CM]-/)) {}
if (stream.eat("\\")) stream.eatWhile(/\w/);
else stream.next();
return "string";
} else if (ch == ":") {
if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state);
if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state);
// :> :>> :< :<< are valid symbols
if (stream.eat(/[\<\>]/)) {
stream.eat(/[\<\>]/);
return "atom";
}
// :+ :- :/ :* :| :& :! are valid symbols
if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) {
return "atom";
}
// Symbols can't start by a digit
if (stream.eat(/[a-zA-Z$@_]/)) {
stream.eatWhile(/[\w]/);
// Only one ? ! = is allowed and only as the last character
stream.eat(/[\?\!\=]/);
return "atom";
}
return "operator";
} else if (ch == "@" && stream.match(/^@?[a-zA-Z_]/)) {
stream.eat("@");
stream.eatWhile(/[\w]/);
return "variable-2";
} else if (ch == "$") {
if (stream.eat(/[a-zA-Z_]/)) {
stream.eatWhile(/[\w]/);
} else if (stream.eat(/\d/)) {
stream.eat(/\d/);
} else {
stream.next(); // Must be a special global like $: or $!
}
return "variable-3";
} else if (/[a-zA-Z_]/.test(ch)) {
stream.eatWhile(/[\w]/);
stream.eat(/[\?\!]/);
if (stream.eat(":")) return "atom";
return "ident";
} else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) {
curPunc = "|";
return null;
} else if (/[\(\)\[\]{}\\;]/.test(ch)) {
curPunc = ch;
return null;
} else if (ch == "-" && stream.eat(">")) {
return "arrow";
} else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) {
stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
return "operator";
} else {
return null;
}
}
function tokenBaseUntilBrace() {
var depth = 1;
return function(stream, state) {
if (stream.peek() == "}") {
depth--;
if (depth == 0) {
state.tokenize.pop();
return state.tokenize[state.tokenize.length-1](stream, state);
}
} else if (stream.peek() == "{") {
depth++;
}
return tokenBase(stream, state);
};
}
function tokenBaseOnce() {
var alreadyCalled = false;
return function(stream, state) {
if (alreadyCalled) {
state.tokenize.pop();
return state.tokenize[state.tokenize.length-1](stream, state);
}
alreadyCalled = true;
return tokenBase(stream, state);
};
}
function readQuoted(quote, style, embed, unescaped) {
return function(stream, state) {
var escaped = false, ch;
if (state.context.type === 'read-quoted-paused') {
state.context = state.context.prev;
stream.eat("}");
}
while ((ch = stream.next()) != null) {
if (ch == quote && (unescaped || !escaped)) {
state.tokenize.pop();
break;
}
if (embed && ch == "#" && !escaped) {
if (stream.eat("{")) {
if (quote == "}") {
state.context = {prev: state.context, type: 'read-quoted-paused'};
}
state.tokenize.push(tokenBaseUntilBrace());
break;
} else if (/[@\$]/.test(stream.peek())) {
state.tokenize.push(tokenBaseOnce());
break;
}
}
escaped = !escaped && ch == "\\";
}
return style;
};
}
function readHereDoc(phrase) {
return function(stream, state) {
if (stream.match(phrase)) state.tokenize.pop();
else stream.skipToEnd();
return "string";
};
}
function readBlockComment(stream, state) {
if (stream.sol() && stream.match("=end") && stream.eol())
state.tokenize.pop();
stream.skipToEnd();
return "comment";
}
return {
startState: function() {
return {tokenize: [tokenBase],
indented: 0,
context: {type: "top", indented: -config.indentUnit},
continuedLine: false,
lastTok: null,
varList: false};
},
token: function(stream, state) {
if (stream.sol()) state.indented = stream.indentation();
var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype;
if (style == "ident") {
var word = stream.current();
style = keywords.propertyIsEnumerable(stream.current()) ? "keyword"
: /^[A-Z]/.test(word) ? "tag"
: (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def"
: "variable";
if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
kwtype = "indent";
else if (word == "do" && state.context.indented < state.indented)
kwtype = "indent";
}
if (curPunc || (style && style != "comment")) state.lastTok = word || curPunc || style;
if (curPunc == "|") state.varList = !state.varList;
if (kwtype == "indent" || /[\(\[\{]/.test(curPunc))
state.context = {prev: state.context, type: curPunc || style, indented: state.indented};
else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev)
state.context = state.context.prev;
if (stream.eol())
state.continuedLine = (curPunc == "\\" || style == "operator");
return style;
},
indent: function(state, textAfter) {
if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0;
var firstChar = textAfter && textAfter.charAt(0);
var ct = state.context;
var closing = ct.type == matching[firstChar] ||
ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter);
return ct.indented + (closing ? 0 : config.indentUnit) +
(state.continuedLine ? config.indentUnit : 0);
},
electricChars: "}de", // enD and rescuE
lineComment: "#"
};
});
CodeMirror.defineMIME("text/x-ruby", "ruby");
|
