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(function (Prism) {
// Ignore comments starting with { to privilege string interpolation highlighting
var comment = /#(?!\{).+/;
var interpolation = {
pattern: /#\{[^}]+\}/,
alias: 'variable',
};
Prism.languages.coffeescript = Prism.languages.extend('javascript', {
comment: comment,
string: [
// Strings are multiline
{
pattern: /'(?:\\[\s\S]|[^\\'])*'/,
greedy: true,
},
{
// Strings are multiline
pattern: /"(?:\\[\s\S]|[^\\"])*"/,
greedy: true,
inside: {
interpolation: interpolation,
},
},
],
keyword:
/\b(?:and|break|by|catch|class|continue|debugger|delete|do|each|else|extend|extends|false|finally|for|if|in|instanceof|is|isnt|let|loop|namespace|new|no|not|null|of|off|on|or|own|return|super|switch|then|this|throw|true|try|typeof|undefined|unless|until|when|while|window|with|yes|yield)\b/,
'class-member': {
pattern: /@(?!\d)\w+/,
alias: 'variable',
},
});
Prism.languages.insertBefore('coffeescript', 'comment', {
'multiline-comment': {
pattern: /###[\s\S]+?###/,
alias: 'comment',
},
// Block regexp can contain comments and interpolation
'block-regex': {
pattern: /\/{3}[\s\S]*?\/{3}/,
alias: 'regex',
inside: {
comment: comment,
interpolation: interpolation,
},
},
});
Prism.languages.insertBefore('coffeescript', 'string', {
'inline-javascript': {
pattern: /`(?:\\[\s\S]|[^\\`])*`/,
inside: {
delimiter: {
pattern: /^`|`$/,
alias: 'punctuation',
},
script: {
pattern: /[\s\S]+/,
alias: 'language-javascript',
inside: Prism.languages.javascript,
},
},
},
// Block strings
'multiline-string': [
{
pattern: /'''[\s\S]*?'''/,
greedy: true,
alias: 'string',
},
{
pattern: /"""[\s\S]*?"""/,
greedy: true,
alias: 'string',
inside: {
interpolation: interpolation,
},
},
],
});
Prism.languages.insertBefore('coffeescript', 'keyword', {
// Object property
property: /(?!\d)\w+(?=\s*:(?!:))/,
});
delete Prism.languages.coffeescript['template-string'];
Prism.languages.coffee = Prism.languages.coffeescript;
})(Prism);
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