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/*
Language: Scheme
Description: Scheme is a programming language in the Lisp family.
(keywords based on http://community.schemewiki.org/?scheme-keywords)
Author: JP Verkamp <me@jverkamp.com>
Contributors: Ivan Sagalaev <maniac@softwaremaniacs.org>
Origin: clojure.js
Website: http://community.schemewiki.org/?what-is-scheme
Category: lisp
*/
function scheme(hljs) {
const SCHEME_IDENT_RE = '[^\\(\\)\\[\\]\\{\\}",\'`;#|\\\\\\s]+';
const SCHEME_SIMPLE_NUMBER_RE = '(-|\\+)?\\d+([./]\\d+)?';
const SCHEME_COMPLEX_NUMBER_RE = SCHEME_SIMPLE_NUMBER_RE + '[+\\-]' + SCHEME_SIMPLE_NUMBER_RE + 'i';
const KEYWORDS = {
$pattern: SCHEME_IDENT_RE,
'builtin-name':
'case-lambda call/cc class define-class exit-handler field import ' +
'inherit init-field interface let*-values let-values let/ec mixin ' +
'opt-lambda override protect provide public rename require ' +
'require-for-syntax syntax syntax-case syntax-error unit/sig unless ' +
'when with-syntax and begin call-with-current-continuation ' +
'call-with-input-file call-with-output-file case cond define ' +
'define-syntax delay do dynamic-wind else for-each if lambda let let* ' +
'let-syntax letrec letrec-syntax map or syntax-rules \' * + , ,@ - ... / ' +
'; < <= = => > >= ` abs acos angle append apply asin assoc assq assv atan ' +
'boolean? caar cadr call-with-input-file call-with-output-file ' +
'call-with-values car cdddar cddddr cdr ceiling char->integer ' +
'char-alphabetic? char-ci<=? char-ci<? char-ci=? char-ci>=? char-ci>? ' +
'char-downcase char-lower-case? char-numeric? char-ready? char-upcase ' +
'char-upper-case? char-whitespace? char<=? char<? char=? char>=? char>? ' +
'char? close-input-port close-output-port complex? cons cos ' +
'current-input-port current-output-port denominator display eof-object? ' +
'eq? equal? eqv? eval even? exact->inexact exact? exp expt floor ' +
'force gcd imag-part inexact->exact inexact? input-port? integer->char ' +
'integer? interaction-environment lcm length list list->string ' +
'list->vector list-ref list-tail list? load log magnitude make-polar ' +
'make-rectangular make-string make-vector max member memq memv min ' +
'modulo negative? newline not null-environment null? number->string ' +
'number? numerator odd? open-input-file open-output-file output-port? ' +
'pair? peek-char port? positive? procedure? quasiquote quote quotient ' +
'rational? rationalize read read-char real-part real? remainder reverse ' +
'round scheme-report-environment set! set-car! set-cdr! sin sqrt string ' +
'string->list string->number string->symbol string-append string-ci<=? ' +
'string-ci<? string-ci=? string-ci>=? string-ci>? string-copy ' +
'string-fill! string-length string-ref string-set! string<=? string<? ' +
'string=? string>=? string>? string? substring symbol->string symbol? ' +
'tan transcript-off transcript-on truncate values vector ' +
'vector->list vector-fill! vector-length vector-ref vector-set! ' +
'with-input-from-file with-output-to-file write write-char zero?'
};
const LITERAL = {
className: 'literal',
begin: '(#t|#f|#\\\\' + SCHEME_IDENT_RE + '|#\\\\.)'
};
const NUMBER = {
className: 'number',
variants: [
{
begin: SCHEME_SIMPLE_NUMBER_RE,
relevance: 0
},
{
begin: SCHEME_COMPLEX_NUMBER_RE,
relevance: 0
},
{
begin: '#b[0-1]+(/[0-1]+)?'
},
{
begin: '#o[0-7]+(/[0-7]+)?'
},
{
begin: '#x[0-9a-f]+(/[0-9a-f]+)?'
}
]
};
const STRING = hljs.QUOTE_STRING_MODE;
const COMMENT_MODES = [
hljs.COMMENT(
';',
'$',
{
relevance: 0
}
),
hljs.COMMENT('#\\|', '\\|#')
];
const IDENT = {
begin: SCHEME_IDENT_RE,
relevance: 0
};
const QUOTED_IDENT = {
className: 'symbol',
begin: '\'' + SCHEME_IDENT_RE
};
const BODY = {
endsWithParent: true,
relevance: 0
};
const QUOTED_LIST = {
variants: [
{
begin: /'/
},
{
begin: '`'
}
],
contains: [
{
begin: '\\(',
end: '\\)',
contains: [
'self',
LITERAL,
STRING,
NUMBER,
IDENT,
QUOTED_IDENT
]
}
]
};
const NAME = {
className: 'name',
relevance: 0,
begin: SCHEME_IDENT_RE,
keywords: KEYWORDS
};
const LAMBDA = {
begin: /lambda/,
endsWithParent: true,
returnBegin: true,
contains: [
NAME,
{
endsParent: true,
variants: [
{
begin: /\(/,
end: /\)/
},
{
begin: /\[/,
end: /\]/
}
],
contains: [ IDENT ]
}
]
};
const LIST = {
variants: [
{
begin: '\\(',
end: '\\)'
},
{
begin: '\\[',
end: '\\]'
}
],
contains: [
LAMBDA,
NAME,
BODY
]
};
BODY.contains = [
LITERAL,
NUMBER,
STRING,
IDENT,
QUOTED_IDENT,
QUOTED_LIST,
LIST
].concat(COMMENT_MODES);
return {
name: 'Scheme',
illegal: /\S/,
contains: [
hljs.SHEBANG(),
NUMBER,
STRING,
QUOTED_IDENT,
QUOTED_LIST,
LIST
].concat(COMMENT_MODES)
};
}
module.exports = scheme;