| Server IP : 167.235.224.122 / Your IP : 216.73.216.110 Web Server : Apache/2.4.58 (Ubuntu) System : Linux newplayground 6.8.0-136-generic #136-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul 1 21:33:11 UTC 2026 aarch64 User : deploy ( 1000) PHP Version : 8.4.23 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : OFF Directory : /var/www/html/jungly/node_modules/highlight.js/lib/languages/ |
Upload File : |
/**
* @param {string} value
* @returns {RegExp}
* */
/**
* @param {RegExp | string } re
* @returns {string}
*/
function source(re) {
if (!re) return null;
if (typeof re === "string") return re;
return re.source;
}
/**
* @param {RegExp | string } re
* @returns {string}
*/
function lookahead(re) {
return concat('(?=', re, ')');
}
/**
* @param {...(RegExp | string) } args
* @returns {string}
*/
function concat(...args) {
const joined = args.map((x) => source(x)).join("");
return joined;
}
/*
Language: R
Description: R is a free software environment for statistical computing and graphics.
Author: Joe Cheng <joe@rstudio.org>
Contributors: Konrad Rudolph <konrad.rudolph@gmail.com>
Website: https://www.r-project.org
Category: common,scientific
*/
/** @type LanguageFn */
function r(hljs) {
// Identifiers in R cannot start with `_`, but they can start with `.` if it
// is not immediately followed by a digit.
// R also supports quoted identifiers, which are near-arbitrary sequences
// delimited by backticks (`…`), which may contain escape sequences. These are
// handled in a separate mode. See `test/markup/r/names.txt` for examples.
// FIXME: Support Unicode identifiers.
const IDENT_RE = /(?:(?:[a-zA-Z]|\.[._a-zA-Z])[._a-zA-Z0-9]*)|\.(?!\d)/;
const SIMPLE_IDENT = /[a-zA-Z][a-zA-Z_0-9]*/;
return {
name: 'R',
// only in Haskell, not R
illegal: /->/,
keywords: {
$pattern: IDENT_RE,
keyword:
'function if in break next repeat else for while',
literal:
'NULL NA TRUE FALSE Inf NaN NA_integer_|10 NA_real_|10 ' +
'NA_character_|10 NA_complex_|10',
built_in:
// Builtin constants
'LETTERS letters month.abb month.name pi T F ' +
// Primitive functions
// These are all the functions in `base` that are implemented as a
// `.Primitive`, minus those functions that are also keywords.
'abs acos acosh all any anyNA Arg as.call as.character ' +
'as.complex as.double as.environment as.integer as.logical ' +
'as.null.default as.numeric as.raw asin asinh atan atanh attr ' +
'attributes baseenv browser c call ceiling class Conj cos cosh ' +
'cospi cummax cummin cumprod cumsum digamma dim dimnames ' +
'emptyenv exp expression floor forceAndCall gamma gc.time ' +
'globalenv Im interactive invisible is.array is.atomic is.call ' +
'is.character is.complex is.double is.environment is.expression ' +
'is.finite is.function is.infinite is.integer is.language ' +
'is.list is.logical is.matrix is.na is.name is.nan is.null ' +
'is.numeric is.object is.pairlist is.raw is.recursive is.single ' +
'is.symbol lazyLoadDBfetch length lgamma list log max min ' +
'missing Mod names nargs nzchar oldClass on.exit pos.to.env ' +
'proc.time prod quote range Re rep retracemem return round ' +
'seq_along seq_len seq.int sign signif sin sinh sinpi sqrt ' +
'standardGeneric substitute sum switch tan tanh tanpi tracemem ' +
'trigamma trunc unclass untracemem UseMethod xtfrm',
},
compilerExtensions: [
// allow beforeMatch to act as a "qualifier" for the match
// the full match begin must be [beforeMatch][begin]
(mode, parent) => {
if (!mode.beforeMatch) return;
// starts conflicts with endsParent which we need to make sure the child
// rule is not matched multiple times
if (mode.starts) throw new Error("beforeMatch cannot be used with starts");
const originalMode = Object.assign({}, mode);
Object.keys(mode).forEach((key) => { delete mode[key]; });
mode.begin = concat(originalMode.beforeMatch, lookahead(originalMode.begin));
mode.starts = {
relevance: 0,
contains: [
Object.assign(originalMode, { endsParent: true })
]
};
mode.relevance = 0;
delete originalMode.beforeMatch;
}
],
contains: [
// Roxygen comments
hljs.COMMENT(
/#'/,
/$/,
{
contains: [
{
// Handle `@examples` separately to cause all subsequent code
// until the next `@`-tag on its own line to be kept as-is,
// preventing highlighting. This code is example R code, so nested
// doctags shouldn’t be treated as such. See
// `test/markup/r/roxygen.txt` for an example.
className: 'doctag',
begin: '@examples',
starts: {
contains: [
{ begin: /\n/ },
{
begin: /#'\s*(?=@[a-zA-Z]+)/,
endsParent: true,
},
{
begin: /#'/,
end: /$/,
excludeBegin: true,
}
]
}
},
{
// Handle `@param` to highlight the parameter name following
// after.
className: 'doctag',
begin: '@param',
end: /$/,
contains: [
{
className: 'variable',
variants: [
{ begin: IDENT_RE },
{ begin: /`(?:\\.|[^`\\])+`/ }
],
endsParent: true
}
]
},
{
className: 'doctag',
begin: /@[a-zA-Z]+/
},
{
className: 'meta-keyword',
begin: /\\[a-zA-Z]+/,
}
]
}
),
hljs.HASH_COMMENT_MODE,
{
className: 'string',
contains: [hljs.BACKSLASH_ESCAPE],
variants: [
hljs.END_SAME_AS_BEGIN({ begin: /[rR]"(-*)\(/, end: /\)(-*)"/ }),
hljs.END_SAME_AS_BEGIN({ begin: /[rR]"(-*)\{/, end: /\}(-*)"/ }),
hljs.END_SAME_AS_BEGIN({ begin: /[rR]"(-*)\[/, end: /\](-*)"/ }),
hljs.END_SAME_AS_BEGIN({ begin: /[rR]'(-*)\(/, end: /\)(-*)'/ }),
hljs.END_SAME_AS_BEGIN({ begin: /[rR]'(-*)\{/, end: /\}(-*)'/ }),
hljs.END_SAME_AS_BEGIN({ begin: /[rR]'(-*)\[/, end: /\](-*)'/ }),
{begin: '"', end: '"', relevance: 0},
{begin: "'", end: "'", relevance: 0}
],
},
{
className: 'number',
relevance: 0,
beforeMatch: /([^a-zA-Z0-9._])/, // not part of an identifier
variants: [
// TODO: replace with negative look-behind when available
// { begin: /(?<![a-zA-Z0-9._])0[xX][0-9a-fA-F]+\.[0-9a-fA-F]*[pP][+-]?\d+i?/ },
// { begin: /(?<![a-zA-Z0-9._])0[xX][0-9a-fA-F]+([pP][+-]?\d+)?[Li]?/ },
// { begin: /(?<![a-zA-Z0-9._])(\d+(\.\d*)?|\.\d+)([eE][+-]?\d+)?[Li]?/ }
{
// Special case: only hexadecimal binary powers can contain fractions.
match: /0[xX][0-9a-fA-F]+\.[0-9a-fA-F]*[pP][+-]?\d+i?/,
},
{
match: /0[xX][0-9a-fA-F]+([pP][+-]?\d+)?[Li]?/
},
{
match: /(\d+(\.\d*)?|\.\d+)([eE][+-]?\d+)?[Li]?/,
}
],
},
{
// infix operator
begin: '%',
end: '%'
},
// relevance boost for assignment
{
begin: concat(SIMPLE_IDENT, "\\s+<-\\s+")
},
{
// escaped identifier
begin: '`',
end: '`',
contains: [
{ begin: /\\./ }
]
}
]
};
}
module.exports = r;