| 1 | Prism.languages.elm = {
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| 2 | 'comment': /--.*|\{-[\s\S]*?-\}/,
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| 3 | 'char': {
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| 4 | pattern: /'(?:[^\\'\r\n]|\\(?:[abfnrtv\\']|\d+|x[0-9a-fA-F]+|u\{[0-9a-fA-F]+\}))'/,
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| 5 | greedy: true
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| 6 | },
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| 7 | 'string': [
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| 8 | {
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| 9 | // Multiline strings are wrapped in triple ". Quotes may appear unescaped.
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| 10 | pattern: /"""[\s\S]*?"""/,
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| 11 | greedy: true
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| 12 | },
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| 13 | {
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| 14 | pattern: /"(?:[^\\"\r\n]|\\.)*"/,
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| 15 | greedy: true
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| 16 | }
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| 17 | ],
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| 18 | 'import-statement': {
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| 19 | // The imported or hidden names are not included in this import
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| 20 | // statement. This is because we want to highlight those exactly like
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| 21 | // we do for the names in the program.
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| 22 | pattern: /(^[\t ]*)import\s+[A-Z]\w*(?:\.[A-Z]\w*)*(?:\s+as\s+(?:[A-Z]\w*)(?:\.[A-Z]\w*)*)?(?:\s+exposing\s+)?/m,
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| 23 | lookbehind: true,
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| 24 | inside: {
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| 25 | 'keyword': /\b(?:as|exposing|import)\b/
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| 26 | }
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| 27 | },
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| 28 | 'keyword': /\b(?:alias|as|case|else|exposing|if|in|infixl|infixr|let|module|of|then|type)\b/,
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| 29 | // These are builtin variables only. Constructors are highlighted later as a constant.
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| 30 | 'builtin': /\b(?:abs|acos|always|asin|atan|atan2|ceiling|clamp|compare|cos|curry|degrees|e|flip|floor|fromPolar|identity|isInfinite|isNaN|logBase|max|min|negate|never|not|pi|radians|rem|round|sin|sqrt|tan|toFloat|toPolar|toString|truncate|turns|uncurry|xor)\b/,
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| 31 | // decimal integers and floating point numbers | hexadecimal integers
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| 32 | 'number': /\b(?:\d+(?:\.\d+)?(?:e[+-]?\d+)?|0x[0-9a-f]+)\b/i,
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| 33 | // Most of this is needed because of the meaning of a single '.'.
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| 34 | // If it stands alone freely, it is the function composition.
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| 35 | // It may also be a separator between a module name and an identifier => no
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| 36 | // operator. If it comes together with other special characters it is an
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| 37 | // operator too.
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| 38 | // Valid operator characters in 0.18: +-/*=.$<>:&|^?%#@~!
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| 39 | // Ref: https://groups.google.com/forum/#!msg/elm-dev/0AHSnDdkSkQ/E0SVU70JEQAJ
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| 40 | 'operator': /\s\.\s|[+\-/*=.$<>:&|^?%#@~!]{2,}|[+\-/*=$<>:&|^?%#@~!]/,
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| 41 | // In Elm, nearly everything is a variable, do not highlight these.
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| 42 | 'hvariable': /\b(?:[A-Z]\w*\.)*[a-z]\w*\b/,
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| 43 | 'constant': /\b(?:[A-Z]\w*\.)*[A-Z]\w*\b/,
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| 44 | 'punctuation': /[{}[\]|(),.:]/
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| 45 | };
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