mirror of
https://github.com/Funkoala14/knowledgebase_law.git
synced 2025-06-09 03:18:15 +08:00
218 lines
7.3 KiB
JavaScript
218 lines
7.3 KiB
JavaScript
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'use strict'
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var refractorCsharp = require('./csharp.js')
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module.exports = cshtml
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cshtml.displayName = 'cshtml'
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cshtml.aliases = ['razor']
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function cshtml(Prism) {
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Prism.register(refractorCsharp)
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// Docs:
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// https://docs.microsoft.com/en-us/aspnet/core/razor-pages/?view=aspnetcore-5.0&tabs=visual-studio
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// https://docs.microsoft.com/en-us/aspnet/core/mvc/views/razor?view=aspnetcore-5.0
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;(function (Prism) {
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var commentLike = /\/(?![/*])|\/\/.*[\r\n]|\/\*[^*]*(?:\*(?!\/)[^*]*)*\*\//
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.source
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var stringLike =
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/@(?!")|"(?:[^\r\n\\"]|\\.)*"|@"(?:[^\\"]|""|\\[\s\S])*"(?!")/.source +
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'|' +
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/'(?:(?:[^\r\n'\\]|\\.|\\[Uux][\da-fA-F]{1,8})'|(?=[^\\](?!')))/.source
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/**
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* Creates a nested pattern where all occurrences of the string `<<self>>` are replaced with the pattern itself.
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*
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* @param {string} pattern
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* @param {number} depthLog2
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* @returns {string}
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*/
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function nested(pattern, depthLog2) {
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for (var i = 0; i < depthLog2; i++) {
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pattern = pattern.replace(/<self>/g, function () {
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return '(?:' + pattern + ')'
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})
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}
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return pattern
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.replace(/<self>/g, '[^\\s\\S]')
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.replace(/<str>/g, '(?:' + stringLike + ')')
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.replace(/<comment>/g, '(?:' + commentLike + ')')
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}
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var round = nested(/\((?:[^()'"@/]|<str>|<comment>|<self>)*\)/.source, 2)
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var square = nested(/\[(?:[^\[\]'"@/]|<str>|<comment>|<self>)*\]/.source, 2)
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var curly = nested(/\{(?:[^{}'"@/]|<str>|<comment>|<self>)*\}/.source, 2)
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var angle = nested(/<(?:[^<>'"@/]|<str>|<comment>|<self>)*>/.source, 2) // Note about the above bracket patterns:
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// They all ignore HTML expressions that might be in the C# code. This is a problem because HTML (like strings and
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// comments) is parsed differently. This is a huge problem because HTML might contain brackets and quotes which
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// messes up the bracket and string counting implemented by the above patterns.
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//
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// This problem is not fixable because 1) HTML expression are highly context sensitive and very difficult to detect
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// and 2) they require one capturing group at every nested level. See the `tagRegion` pattern to admire the
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// complexity of an HTML expression.
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//
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// To somewhat alleviate the problem a bit, the patterns for characters (e.g. 'a') is very permissive, it also
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// allows invalid characters to support HTML expressions like this: <p>That's it!</p>.
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var tagAttrs =
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/(?:\s(?:\s*[^\s>\/=]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))|(?=[\s/>])))+)?/
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.source
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var tagContent = /(?!\d)[^\s>\/=$<%]+/.source + tagAttrs + /\s*\/?>/.source
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var tagRegion =
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/\B@?/.source +
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'(?:' +
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/<([a-zA-Z][\w:]*)/.source +
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tagAttrs +
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/\s*>/.source +
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'(?:' +
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(/[^<]/.source +
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'|' + // all tags that are not the start tag
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// eslint-disable-next-line regexp/strict
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/<\/?(?!\1\b)/.source +
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tagContent +
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'|' + // nested start tag
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nested(
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// eslint-disable-next-line regexp/strict
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/<\1/.source +
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tagAttrs +
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/\s*>/.source +
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'(?:' +
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(/[^<]/.source +
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'|' + // all tags that are not the start tag
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// eslint-disable-next-line regexp/strict
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/<\/?(?!\1\b)/.source +
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tagContent +
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'|' +
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'<self>') +
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')*' + // eslint-disable-next-line regexp/strict
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/<\/\1\s*>/.source,
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2
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)) +
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')*' + // eslint-disable-next-line regexp/strict
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/<\/\1\s*>/.source +
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'|' +
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/</.source +
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tagContent +
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')' // Now for the actual language definition(s):
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//
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// Razor as a language has 2 parts:
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// 1) CSHTML: A markup-like language that has been extended with inline C# code expressions and blocks.
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// 2) C#+HTML: A variant of C# that can contain CSHTML tags as expressions.
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//
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// In the below code, both CSHTML and C#+HTML will be create as separate language definitions that reference each
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// other. However, only CSHTML will be exported via `Prism.languages`.
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Prism.languages.cshtml = Prism.languages.extend('markup', {})
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var csharpWithHtml = Prism.languages.insertBefore(
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'csharp',
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'string',
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{
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html: {
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pattern: RegExp(tagRegion),
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greedy: true,
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inside: Prism.languages.cshtml
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}
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},
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{
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csharp: Prism.languages.extend('csharp', {})
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}
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)
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var cs = {
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pattern: /\S[\s\S]*/,
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alias: 'language-csharp',
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inside: csharpWithHtml
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}
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Prism.languages.insertBefore('cshtml', 'prolog', {
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'razor-comment': {
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pattern: /@\*[\s\S]*?\*@/,
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greedy: true,
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alias: 'comment'
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},
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block: {
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pattern: RegExp(
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/(^|[^@])@/.source +
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'(?:' +
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[
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// @{ ... }
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curly, // @code{ ... }
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/(?:code|functions)\s*/.source + curly, // @for (...) { ... }
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/(?:for|foreach|lock|switch|using|while)\s*/.source +
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round +
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/\s*/.source +
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curly, // @do { ... } while (...);
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/do\s*/.source +
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curly +
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/\s*while\s*/.source +
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round +
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/(?:\s*;)?/.source, // @try { ... } catch (...) { ... } finally { ... }
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/try\s*/.source +
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curly +
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/\s*catch\s*/.source +
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round +
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/\s*/.source +
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curly +
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/\s*finally\s*/.source +
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curly, // @if (...) {...} else if (...) {...} else {...}
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/if\s*/.source +
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round +
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/\s*/.source +
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curly +
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'(?:' +
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/\s*else/.source +
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'(?:' +
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/\s+if\s*/.source +
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round +
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')?' +
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/\s*/.source +
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curly +
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')*'
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].join('|') +
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')'
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),
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lookbehind: true,
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greedy: true,
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inside: {
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keyword: /^@\w*/,
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csharp: cs
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}
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},
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directive: {
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pattern:
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/^([ \t]*)@(?:addTagHelper|attribute|implements|inherits|inject|layout|model|namespace|page|preservewhitespace|removeTagHelper|section|tagHelperPrefix|using)(?=\s).*/m,
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lookbehind: true,
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greedy: true,
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inside: {
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keyword: /^@\w+/,
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csharp: cs
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}
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},
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value: {
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pattern: RegExp(
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/(^|[^@])@/.source +
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/(?:await\b\s*)?/.source +
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'(?:' +
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/\w+\b/.source +
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'|' +
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round +
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')' +
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'(?:' +
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/[?!]?\.\w+\b/.source +
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'|' +
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round +
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'|' +
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square +
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'|' +
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angle +
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round +
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')*'
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),
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lookbehind: true,
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greedy: true,
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alias: 'variable',
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inside: {
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keyword: /^@/,
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csharp: cs
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}
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},
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'delegate-operator': {
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pattern: /(^|[^@])@(?=<)/,
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lookbehind: true,
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alias: 'operator'
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}
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})
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Prism.languages.razor = Prism.languages.cshtml
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})(Prism)
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}
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