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Prism.languages.chaiscript = Prism.languages.extend('clike', {
string: {
pattern: /(^|[^\\])'(?:[^'\\]|\\[\s\S])*'/,
lookbehind: true,
greedy: true,
},
'class-name': [
{
// e.g. class Rectangle { ... }
pattern: /(\bclass\s+)\w+/,
lookbehind: true,
},
{
// e.g. attr Rectangle::height, def Rectangle::area() { ... }
pattern: /(\b(?:attr|def)\s+)\w+(?=\s*::)/,
lookbehind: true,
},
],
keyword:
/\b(?:attr|auto|break|case|catch|class|continue|def|default|else|finally|for|fun|global|if|return|switch|this|try|var|while)\b/,
number: [Prism.languages.cpp.number, /\b(?:Infinity|NaN)\b/],
operator:
/>>=?|<<=?|\|\||&&|:[:=]?|--|\+\+|[=!<>+\-*/%|&^]=?|[?~]|`[^`\r\n]{1,4}`/,
});
Prism.languages.insertBefore('chaiscript', 'operator', {
'parameter-type': {
// e.g. def foo(int x, Vector y) {...}
pattern: /([,(]\s*)\w+(?=\s+\w)/,
lookbehind: true,
alias: 'class-name',
},
});
Prism.languages.insertBefore('chaiscript', 'string', {
'string-interpolation': {
pattern:
/(^|[^\\])"(?:[^"$\\]|\\[\s\S]|\$(?!\{)|\$\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\})*"/,
lookbehind: true,
greedy: true,
inside: {
interpolation: {
pattern:
/((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\}/,
lookbehind: true,
inside: {
'interpolation-expression': {
pattern: /(^\$\{)[\s\S]+(?=\}$)/,
lookbehind: true,
inside: Prism.languages.chaiscript,
},
'interpolation-punctuation': {
pattern: /^\$\{|\}$/,
alias: 'punctuation',
},
},
},
string: /[\s\S]+/,
},
},
});
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