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1 // Copyright (C) 2010 Google Inc. | |
2 // | |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 // you may not use this file except in compliance with the License. | |
5 // You may obtain a copy of the License at | |
6 // | |
7 // http://www.apache.org/licenses/LICENSE-2.0 | |
8 // | |
9 // Unless required by applicable law or agreed to in writing, software | |
10 // distributed under the License is distributed on an "AS IS" BASIS, | |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 // See the License for the specific language governing permissions and | |
13 // limitations under the License. | |
14 | |
15 | |
16 /** | |
17 * @fileoverview | |
18 * Registers a language handler for Scala. | |
19 * | |
20 * Derived from http://lampsvn.epfl.ch/svn-repos/scala/scala-documentation/trunk
/src/reference/SyntaxSummary.tex | |
21 * | |
22 * @author mikesamuel@gmail.com | |
23 */ | |
24 | |
25 PR['registerLangHandler']( | |
26 PR['createSimpleLexer']( | |
27 [ | |
28 // Whitespace | |
29 [PR['PR_PLAIN'], /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'], | |
30 // A double or single quoted string | |
31 // or a triple double-quoted multi-line string. | |
32 [PR['PR_STRING'], | |
33 /^(?:"(?:(?:""(?:""?(?!")|[^\\"]|\\.)*"{0,3})|(?:[^"\r\n\\]|\\.)*"?))/
, | |
34 null, '"'], | |
35 [PR['PR_LITERAL'], /^`(?:[^\r\n\\`]|\\.)*`?/, null, '`'], | |
36 [PR['PR_PUNCTUATION'], /^[!#%&()*+,\-:;<=>?@\[\\\]^{|}~]+/, null, | |
37 '!#%&()*+,-:;<=>?@[\\]^{|}~'] | |
38 ], | |
39 [ | |
40 // A symbol literal is a single quote followed by an identifier with no | |
41 // single quote following | |
42 // A character literal has single quotes on either side | |
43 [PR['PR_STRING'], /^'(?:[^\r\n\\']|\\(?:'|[^\r\n']+))'/], | |
44 [PR['PR_LITERAL'], /^'[a-zA-Z_$][\w$]*(?!['$\w])/], | |
45 [PR['PR_KEYWORD'], /^(?:abstract|case|catch|class|def|do|else|exten
ds|final|finally|for|forSome|if|implicit|import|lazy|match|new|object|override|p
ackage|private|protected|requires|return|sealed|super|throw|trait|try|type|val|v
ar|while|with|yield)\b/], | |
46 [PR['PR_LITERAL'], /^(?:true|false|null|this)\b/], | |
47 [PR['PR_LITERAL'], /^(?:(?:0(?:[0-7]+|X[0-9A-F]+))L?|(?:(?:0|[1-9][
0-9]*)(?:(?:\.[0-9]+)?(?:E[+\-]?[0-9]+)?F?|L?))|\\.[0-9]+(?:E[+\-]?[0-9]+)?F?)/i
], | |
48 // Treat upper camel case identifiers as types. | |
49 [PR['PR_TYPE'], /^[$_]*[A-Z][_$A-Z0-9]*[a-z][\w$]*/], | |
50 [PR['PR_PLAIN'], /^[$a-zA-Z_][\w$]*/], | |
51 [PR['PR_COMMENT'], /^\/(?:\/.*|\*(?:\/|\**[^*/])*(?:\*+\/?)?)/], | |
52 [PR['PR_PUNCTUATION'], /^(?:\.+|\/)/] | |
53 ]), | |
54 ['scala']); | |
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