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(function (Prism) {
Prism.languages.crystal = Prism.languages.extend('ruby', {
keyword: [
/\b(?:__DIR__|__END_LINE__|__FILE__|__LINE__|abstract|alias|annotation|as|asm|begin|break|case|class|def|do|else|elsif|end|ensure|enum|extend|for|fun|if|ifdef|include|instance_sizeof|lib|macro|module|next|of|out|pointerof|private|protected|ptr|require|rescue|return|select|self|sizeof|struct|super|then|type|typeof|undef|uninitialized|union|unless|until|when|while|with|yield)\b/,
{
pattern: /(\.\s*)(?:is_a|responds_to)\?/,
lookbehind: true,
},
],
number:
/\b(?:0b[01_]*[01]|0o[0-7_]*[0-7]|0x[\da-fA-F_]*[\da-fA-F]|(?:\d(?:[\d_]*\d)?)(?:\.[\d_]*\d)?(?:[eE][+-]?[\d_]*\d)?)(?:_(?:[uif](?:8|16|32|64))?)?\b/,
operator: [/->/, Prism.languages.ruby.operator],
punctuation: /[(){}[\].,;\\]/,
});
Prism.languages.insertBefore('crystal', 'string-literal', {
attribute: {
pattern: /@\[.*?\]/,
inside: {
delimiter: {
pattern: /^@\[|\]$/,
alias: 'punctuation',
},
attribute: {
pattern: /^(\s*)\w+/,
lookbehind: true,
alias: 'class-name',
},
args: {
pattern: /\S(?:[\s\S]*\S)?/,
inside: Prism.languages.crystal,
},
},
},
expansion: {
pattern: /\{(?:\{.*?\}|%.*?%)\}/,
inside: {
content: {
pattern: /^(\{.)[\s\S]+(?=.\}$)/,
lookbehind: true,
inside: Prism.languages.crystal,
},
delimiter: {
pattern: /^\{[\{%]|[\}%]\}$/,
alias: 'operator',
},
},
},
char: {
pattern:
/'(?:[^\\\r\n]{1,2}|\\(?:.|u(?:[A-Fa-f0-9]{1,4}|\{[A-Fa-f0-9]{1,6}\})))'/,
greedy: true,
},
});
})(Prism);
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