70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
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// ABNF grammar:
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// https://github.com/dhall-lang/dhall-lang/blob/master/standard/dhall.abnf
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Prism.languages.dhall = {
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// Multi-line comments can be nested. E.g. {- foo {- bar -} -}
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// The multi-line pattern is essentially this:
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// \{-(?:[^-{]|-(?!\})|\{(?!-)|<SELF>)*-\}
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'comment': /--.*|\{-(?:[^-{]|-(?!\})|\{(?!-)|\{-(?:[^-{]|-(?!\})|\{(?!-))*-\})*-\}/,
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'string': {
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pattern: /"(?:[^"\\]|\\.)*"|''(?:[^']|'(?!')|'''|''\$\{)*''(?!'|\$)/,
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greedy: true,
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inside: {
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'interpolation': {
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pattern: /\$\{[^{}]*\}/,
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inside: {
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'expression': {
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pattern: /(^\$\{)[\s\S]+(?=\}$)/,
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lookbehind: true,
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alias: 'language-dhall',
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inside: null // see blow
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},
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'punctuation': /\$\{|\}/
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}
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}
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}
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},
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'label': {
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pattern: /`[^`]*`/,
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greedy: true
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},
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'url': {
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// https://github.com/dhall-lang/dhall-lang/blob/5fde8ef1bead6fb4e999d3c1ffe7044cd019d63a/standard/dhall.abnf#L596
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pattern: /\bhttps?:\/\/[\w.:%!$&'*+;=@~-]+(?:\/[\w.:%!$&'*+;=@~-]*)*(?:\?[/?\w.:%!$&'*+;=@~-]*)?/,
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greedy: true
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},
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'env': {
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// https://github.com/dhall-lang/dhall-lang/blob/5fde8ef1bead6fb4e999d3c1ffe7044cd019d63a/standard/dhall.abnf#L661
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pattern: /\benv:(?:(?!\d)\w+|"(?:[^"\\=]|\\.)*")/,
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greedy: true,
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inside: {
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'function': /^env/,
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'operator': /^:/,
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'variable': /[\s\S]+/
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}
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},
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'hash': {
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// https://github.com/dhall-lang/dhall-lang/blob/5fde8ef1bead6fb4e999d3c1ffe7044cd019d63a/standard/dhall.abnf#L725
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pattern: /\bsha256:[\da-fA-F]{64}\b/,
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inside: {
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'function': /sha256/,
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'operator': /:/,
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'number': /[\da-fA-F]{64}/
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}
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},
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// https://github.com/dhall-lang/dhall-lang/blob/5fde8ef1bead6fb4e999d3c1ffe7044cd019d63a/standard/dhall.abnf#L359
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'keyword': /\b(?:as|assert|else|forall|if|in|let|merge|missing|then|toMap|using|with)\b|\u2200/,
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'builtin': /\b(?:None|Some)\b/,
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'boolean': /\b(?:False|True)\b/,
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'number': /\bNaN\b|-?\bInfinity\b|[+-]?\b(?:0x[\da-fA-F]+|\d+(?:\.\d+)?(?:e[+-]?\d+)?)\b/,
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'operator': /\/\\|\/\/\\\\|&&|\|\||===|[!=]=|\/\/|->|\+\+|::|[+*#@=:?<>|\\\u2227\u2a53\u2261\u2afd\u03bb\u2192]/,
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'punctuation': /\.\.|[{}\[\](),./]/,
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// we'll just assume that every capital word left is a type name
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'class-name': /\b[A-Z]\w*\b/
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};
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Prism.languages.dhall.string.inside.interpolation.inside.expression.inside = Prism.languages.dhall;
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