mindoc/static/highlight/languages/r.js

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2017-04-21 18:20:35 +08:00
/*
Language: R
Author: Joe Cheng <joe@rstudio.org>
Category: scientific
*/
function(hljs) {
var IDENT_RE = '([a-zA-Z]|\\.[a-zA-Z.])[a-zA-Z0-9._]*';
return {
contains: [
hljs.HASH_COMMENT_MODE,
{
begin: IDENT_RE,
lexemes: IDENT_RE,
keywords: {
keyword:
'function if in break next repeat else for return switch while try tryCatch ' +
'stop warning require library attach detach source setMethod setGeneric ' +
'setGroupGeneric setClass ...',
literal:
'NULL NA TRUE FALSE T F Inf NaN NA_integer_|10 NA_real_|10 NA_character_|10 ' +
'NA_complex_|10'
},
relevance: 0
},
{
// hex value
className: 'number',
begin: "0[xX][0-9a-fA-F]+[Li]?\\b",
relevance: 0
},
{
// explicit integer
className: 'number',
begin: "\\d+(?:[eE][+\\-]?\\d*)?L\\b",
relevance: 0
},
{
// number with trailing decimal
className: 'number',
begin: "\\d+\\.(?!\\d)(?:i\\b)?",
relevance: 0
},
{
// number
className: 'number',
begin: "\\d+(?:\\.\\d*)?(?:[eE][+\\-]?\\d*)?i?\\b",
relevance: 0
},
{
// number with leading decimal
className: 'number',
begin: "\\.\\d+(?:[eE][+\\-]?\\d*)?i?\\b",
relevance: 0
},
{
// escaped identifier
begin: '`',
end: '`',
relevance: 0
},
{
className: 'string',
contains: [hljs.BACKSLASH_ESCAPE],
variants: [
{begin: '"', end: '"'},
{begin: "'", end: "'"}
]
}
]
};
}