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