crm.fsf.org/20131203/files/sites/all/modules-old/civicrm/bower_components/google-code-prettify/src/lang-rd.js

   1 // Copyright (C) 2012 Jeffrey Arnold
   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  * @fileoverview
  17  * Support for R documentation (Rd) files
  18  *
  19  * Minimal highlighting or Rd files, basically just highlighting
  20  * macros. It does not try to identify verbatim or R-like regions of
  21  * macros as that is too complicated for a lexer.  Descriptions of the
  22  * Rd format can be found
  23  * http://cran.r-project.org/doc/manuals/R-exts.html and
  24  * http://developer.r-project.org/parseRd.pdf.
  25  *
  26  * @author Jeffrey Arnold
  27  */
  28 PR['registerLangHandler'](
  29     PR['createSimpleLexer'](
  30         [
  31             // whitespace
  32             [PR['PR_PLAIN'],   /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'],
  33             // all comments begin with '%'
  34             [PR['PR_COMMENT'], /^%[^\r\n]*/, null, '%']
  35         ],
  36         [// special macros with no args
  37             [PR['PR_LITERAL'], /^\\(?:cr|l?dots|R|tab)\b/],
  38             // macros
  39             [PR['PR_KEYWORD'], /^\\[a-zA-Z@]+/],
  40             // highlighted as macros, since technically they are
  41             [PR['PR_KEYWORD'],  /^#(?:ifn?def|endif)/ ],
  42             // catch escaped brackets
  43             [PR['PR_PLAIN'], /^\\[{}]/],
  44             // punctuation
  45             [PR['PR_PUNCTUATION'], /^[{}()\[\]]+/]
  46         ]),
  47     ['Rd', 'rd']);