83 lines
2.0 KiB
JavaScript
83 lines
2.0 KiB
JavaScript
/*
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Language: R
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Author: Joe Cheng <joe@rstudio.org>
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*/
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hljs.LANGUAGES['r'] = function(hljs) {
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var IDENT_RE = '([a-zA-Z]|\\.[a-zA-Z.])[a-zA-Z0-9._]*';
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return {
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defaultMode: {
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contains: [
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hljs.HASH_COMMENT_MODE,
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{
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begin: IDENT_RE,
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lexems: IDENT_RE,
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keywords: {
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keyword:
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'function if in break next repeat else for return switch while try tryCatch|10 ' +
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'stop warning require library attach detach source setMethod setGeneric ' +
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'setGroupGeneric setClass ...|10',
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literal:
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'NULL NA TRUE FALSE T F Inf NaN NA_integer_|10 NA_real_|10 NA_character_|10 ' +
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'NA_complex_|10'
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},
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relevance: 0
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},
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{
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// hex value
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className: 'number',
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begin: "0[xX][0-9a-fA-F]+[Li]?\\b",
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relevance: 0
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},
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{
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// explicit integer
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className: 'number',
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begin: "\\d+(?:[eE][+\\-]?\\d*)?L\\b",
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relevance: 0
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},
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{
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// number with trailing decimal
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className: 'number',
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begin: "\\d+\\.(?!\\d)(?:i\\b)?",
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relevance: 0
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},
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{
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// number
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className: 'number',
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begin: "\\d+(?:\\.\\d*)?(?:[eE][+\\-]?\\d*)?i?\\b",
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relevance: 0
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},
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{
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// number with leading decimal
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className: 'number',
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begin: "\\.\\d+(?:[eE][+\\-]?\\d*)?i?\\b",
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relevance: 0
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},
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{
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// escaped identifier
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begin: '`',
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end: '`',
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relevance: 0
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},
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{
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className: 'string',
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begin: '"',
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end: '"',
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contains: [hljs.BACKSLASH_ESCAPE],
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relevance: 0
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},
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{
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className: 'string',
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begin: "'",
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end: "'",
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contains: [hljs.BACKSLASH_ESCAPE],
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relevance: 0
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}
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]
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}
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};
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}(hljs);
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