es2-code-prettify
Version:
Google Code Prettify for ES2
51 lines (49 loc) • 1.89 kB
JavaScript
/**
* @license
* Copyright (C) 2012 Jeffrey Arnold
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview
* Support for R documentation (Rd) files
*
* Minimal highlighting or Rd files, basically just highlighting
* macros. It does not try to identify verbatim or R-like regions of
* macros as that is too complicated for a lexer. Descriptions of the
* Rd format can be found
* http://cran.r-project.org/doc/manuals/R-exts.html and
* http://developer.r-project.org/parseRd.pdf.
*
* @author Jeffrey Arnold
*/
registerLangHandler(
createSimpleLexer(
[
// whitespace
[PR_PLAIN, RegExpProxy( "^[\\t\\n\\r \\xA0]+" ), null, '\t\n\r \xA0'],
// all comments begin with '%'
[PR_COMMENT, RegExpProxy( "^%[^\\r\\n]*" ), null, '%']
],
[// special macros with no args
[PR_LITERAL, RegExpProxy( "^\\\\(?:cr|l?dots|R|tab)\\b" )],
// macros
[PR_KEYWORD, RegExpProxy( "^\\\\[a-zA-Z@]+" )],
// highlighted as macros, since technically they are
[PR_KEYWORD, RegExpProxy( "^#(?:ifn?def|endif)" )],
// catch escaped brackets
[PR_PLAIN, RegExpProxy( "^\\\\[{}]" )],
// punctuation
[PR_PUNCTUATION, RegExpProxy( "^[{}()\\[\\]]+" )]
]),
['Rd', 'rd']);