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98 lines
2.6 KiB
98 lines
2.6 KiB
(function (Prism) { |
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// https://freemarker.apache.org/docs/dgui_template_exp.html |
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// FTL expression with 4 levels of nesting supported |
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var FTL_EXPR = /[^<()"']|\((?:<expr>)*\)|<(?!#--)|<#--(?:[^-]|-(?!->))*-->|"(?:[^\\"]|\\.)*"|'(?:[^\\']|\\.)*'/.source; |
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for (var i = 0; i < 2; i++) { |
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FTL_EXPR = FTL_EXPR.replace(/<expr>/g, function () { return FTL_EXPR; }); |
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} |
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FTL_EXPR = FTL_EXPR.replace(/<expr>/g, /[^\s\S]/.source); |
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var ftl = { |
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'comment': /<#--[\s\S]*?-->/, |
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'string': [ |
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{ |
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// raw string |
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pattern: /\br("|')(?:(?!\1)[^\\]|\\.)*\1/, |
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greedy: true |
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}, |
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{ |
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pattern: RegExp(/("|')(?:(?!\1|\$\{)[^\\]|\\.|\$\{(?:(?!\})(?:<expr>))*\})*\1/.source.replace(/<expr>/g, function () { return FTL_EXPR; })), |
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greedy: true, |
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inside: { |
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'interpolation': { |
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pattern: RegExp(/((?:^|[^\\])(?:\\\\)*)\$\{(?:(?!\})(?:<expr>))*\}/.source.replace(/<expr>/g, function () { return FTL_EXPR; })), |
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lookbehind: true, |
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inside: { |
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'interpolation-punctuation': { |
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pattern: /^\$\{|\}$/, |
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alias: 'punctuation' |
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}, |
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rest: null |
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} |
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} |
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} |
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} |
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], |
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'keyword': /\b(?:as)\b/, |
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'boolean': /\b(?:false|true)\b/, |
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'builtin-function': { |
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pattern: /((?:^|[^?])\?\s*)\w+/, |
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lookbehind: true, |
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alias: 'function' |
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}, |
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'function': /\b\w+(?=\s*\()/, |
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'number': /\b\d+(?:\.\d+)?\b/, |
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'operator': /\.\.[<*!]?|->|--|\+\+|&&|\|\||\?{1,2}|[-+*/%!=<>]=?|\b(?:gt|gte|lt|lte)\b/, |
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'punctuation': /[,;.:()[\]{}]/ |
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}; |
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ftl.string[1].inside.interpolation.inside.rest = ftl; |
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Prism.languages.ftl = { |
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'ftl-comment': { |
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// the pattern is shortened to be more efficient |
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pattern: /^<#--[\s\S]*/, |
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alias: 'comment' |
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}, |
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'ftl-directive': { |
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pattern: /^<[\s\S]+>$/, |
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inside: { |
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'directive': { |
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pattern: /(^<\/?)[#@][a-z]\w*/i, |
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lookbehind: true, |
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alias: 'keyword' |
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}, |
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'punctuation': /^<\/?|\/?>$/, |
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'content': { |
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pattern: /\s*\S[\s\S]*/, |
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alias: 'ftl', |
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inside: ftl |
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} |
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} |
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}, |
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'ftl-interpolation': { |
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pattern: /^\$\{[\s\S]*\}$/, |
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inside: { |
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'punctuation': /^\$\{|\}$/, |
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'content': { |
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pattern: /\s*\S[\s\S]*/, |
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alias: 'ftl', |
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inside: ftl |
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} |
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} |
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} |
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}; |
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Prism.hooks.add('before-tokenize', function (env) { |
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// eslint-disable-next-line regexp/no-useless-lazy |
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var pattern = RegExp(/<#--[\s\S]*?-->|<\/?[#@][a-zA-Z](?:<expr>)*?>|\$\{(?:<expr>)*?\}/.source.replace(/<expr>/g, function () { return FTL_EXPR; }), 'gi'); |
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Prism.languages['markup-templating'].buildPlaceholders(env, 'ftl', pattern); |
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}); |
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Prism.hooks.add('after-tokenize', function (env) { |
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Prism.languages['markup-templating'].tokenizePlaceholders(env, 'ftl'); |
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}); |
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}(Prism));
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