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78 lines
2.6 KiB
JavaScript
78 lines
2.6 KiB
JavaScript
'use strict'
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module.exports = dhall
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dhall.displayName = 'dhall'
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dhall.aliases = []
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function dhall(Prism) {
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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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/--.*|\{-(?:[^-{]|-(?!\})|\{(?!-)|\{-(?:[^-{]|-(?!\})|\{(?!-))*-\})*-\}/,
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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]+(?=\}$)/,
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lookbehind: true,
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alias: 'language-dhall',
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inside: null // see blow
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},
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punctuation: /\$\{|\}/
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}
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}
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}
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},
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label: {
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pattern: /`[^`]*`/,
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greedy: true
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},
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url: {
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// https://github.com/dhall-lang/dhall-lang/blob/5fde8ef1bead6fb4e999d3c1ffe7044cd019d63a/standard/dhall.abnf#L596
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pattern:
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/\bhttps?:\/\/[\w.:%!$&'*+;=@~-]+(?:\/[\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:
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/\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:
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/\bNaN\b|-?\bInfinity\b|[+-]?\b(?:0x[\da-fA-F]+|\d+(?:\.\d+)?(?:e[+-]?\d+)?)\b/,
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operator:
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/\/\\|\/\/\\\\|&&|\|\||===|[!=]=|\/\/|->|\+\+|::|[+*#@=:?<>|\\\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 =
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Prism.languages.dhall
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}
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