| 1 | 'use strict'
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| 2 |
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| 3 | module.exports = csharp
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| 4 | csharp.displayName = 'csharp'
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| 5 | csharp.aliases = ['dotnet', 'cs']
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| 6 | function csharp(Prism) {
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| 7 | ;(function (Prism) {
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| 8 | /**
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| 9 | * Replaces all placeholders "<<n>>" of given pattern with the n-th replacement (zero based).
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| 10 | *
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| 11 | * Note: This is a simple text based replacement. Be careful when using backreferences!
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| 12 | *
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| 13 | * @param {string} pattern the given pattern.
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| 14 | * @param {string[]} replacements a list of replacement which can be inserted into the given pattern.
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| 15 | * @returns {string} the pattern with all placeholders replaced with their corresponding replacements.
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| 16 | * @example replace(/a<<0>>a/.source, [/b+/.source]) === /a(?:b+)a/.source
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| 17 | */
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| 18 | function replace(pattern, replacements) {
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| 19 | return pattern.replace(/<<(\d+)>>/g, function (m, index) {
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| 20 | return '(?:' + replacements[+index] + ')'
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| 21 | })
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| 22 | }
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| 23 | /**
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| 24 | * @param {string} pattern
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| 25 | * @param {string[]} replacements
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| 26 | * @param {string} [flags]
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| 27 | * @returns {RegExp}
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| 28 | */
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| 29 | function re(pattern, replacements, flags) {
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| 30 | return RegExp(replace(pattern, replacements), flags || '')
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| 31 | }
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| 32 | /**
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| 33 | * Creates a nested pattern where all occurrences of the string `<<self>>` are replaced with the pattern itself.
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| 34 | *
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| 35 | * @param {string} pattern
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| 36 | * @param {number} depthLog2
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| 37 | * @returns {string}
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| 38 | */
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| 39 | function nested(pattern, depthLog2) {
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| 40 | for (var i = 0; i < depthLog2; i++) {
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| 41 | pattern = pattern.replace(/<<self>>/g, function () {
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| 42 | return '(?:' + pattern + ')'
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| 43 | })
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| 44 | }
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| 45 | return pattern.replace(/<<self>>/g, '[^\\s\\S]')
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| 46 | } // https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/
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| 47 | var keywordKinds = {
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| 48 | // keywords which represent a return or variable type
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| 49 | type: 'bool byte char decimal double dynamic float int long object sbyte short string uint ulong ushort var void',
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| 50 | // keywords which are used to declare a type
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| 51 | typeDeclaration: 'class enum interface record struct',
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| 52 | // contextual keywords
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| 53 | // ("var" and "dynamic" are missing because they are used like types)
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| 54 | contextual:
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| 55 | 'add alias and ascending async await by descending from(?=\\s*(?:\\w|$)) get global group into init(?=\\s*;) join let nameof not notnull on or orderby partial remove select set unmanaged value when where with(?=\\s*{)',
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| 56 | // all other keywords
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| 57 | other:
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| 58 | 'abstract as base break case catch checked const continue default delegate do else event explicit extern finally fixed for foreach goto if implicit in internal is lock namespace new null operator out override params private protected public readonly ref return sealed sizeof stackalloc static switch this throw try typeof unchecked unsafe using virtual volatile while yield'
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| 59 | } // keywords
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| 60 | function keywordsToPattern(words) {
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| 61 | return '\\b(?:' + words.trim().replace(/ /g, '|') + ')\\b'
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| 62 | }
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| 63 | var typeDeclarationKeywords = keywordsToPattern(
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| 64 | keywordKinds.typeDeclaration
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| 65 | )
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| 66 | var keywords = RegExp(
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| 67 | keywordsToPattern(
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| 68 | keywordKinds.type +
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| 69 | ' ' +
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| 70 | keywordKinds.typeDeclaration +
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| 71 | ' ' +
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| 72 | keywordKinds.contextual +
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| 73 | ' ' +
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| 74 | keywordKinds.other
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| 75 | )
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| 76 | )
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| 77 | var nonTypeKeywords = keywordsToPattern(
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| 78 | keywordKinds.typeDeclaration +
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| 79 | ' ' +
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| 80 | keywordKinds.contextual +
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| 81 | ' ' +
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| 82 | keywordKinds.other
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| 83 | )
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| 84 | var nonContextualKeywords = keywordsToPattern(
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| 85 | keywordKinds.type +
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| 86 | ' ' +
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| 87 | keywordKinds.typeDeclaration +
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| 88 | ' ' +
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| 89 | keywordKinds.other
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| 90 | ) // types
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| 91 | var generic = nested(/<(?:[^<>;=+\-*/%&|^]|<<self>>)*>/.source, 2) // the idea behind the other forbidden characters is to prevent false positives. Same for tupleElement.
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| 92 | var nestedRound = nested(/\((?:[^()]|<<self>>)*\)/.source, 2)
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| 93 | var name = /@?\b[A-Za-z_]\w*\b/.source
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| 94 | var genericName = replace(/<<0>>(?:\s*<<1>>)?/.source, [name, generic])
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| 95 | var identifier = replace(/(?!<<0>>)<<1>>(?:\s*\.\s*<<1>>)*/.source, [
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| 96 | nonTypeKeywords,
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| 97 | genericName
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| 98 | ])
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| 99 | var array = /\[\s*(?:,\s*)*\]/.source
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| 100 | var typeExpressionWithoutTuple = replace(
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| 101 | /<<0>>(?:\s*(?:\?\s*)?<<1>>)*(?:\s*\?)?/.source,
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| 102 | [identifier, array]
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| 103 | )
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| 104 | var tupleElement = replace(
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| 105 | /[^,()<>[\];=+\-*/%&|^]|<<0>>|<<1>>|<<2>>/.source,
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| 106 | [generic, nestedRound, array]
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| 107 | )
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| 108 | var tuple = replace(/\(<<0>>+(?:,<<0>>+)+\)/.source, [tupleElement])
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| 109 | var typeExpression = replace(
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| 110 | /(?:<<0>>|<<1>>)(?:\s*(?:\?\s*)?<<2>>)*(?:\s*\?)?/.source,
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| 111 | [tuple, identifier, array]
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| 112 | )
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| 113 | var typeInside = {
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| 114 | keyword: keywords,
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| 115 | punctuation: /[<>()?,.:[\]]/
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| 116 | } // strings & characters
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| 117 | // https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/language-specification/lexical-structure#character-literals
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| 118 | // https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/language-specification/lexical-structure#string-literals
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| 119 | var character = /'(?:[^\r\n'\\]|\\.|\\[Uux][\da-fA-F]{1,8})'/.source // simplified pattern
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| 120 | var regularString = /"(?:\\.|[^\\"\r\n])*"/.source
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| 121 | var verbatimString = /@"(?:""|\\[\s\S]|[^\\"])*"(?!")/.source
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| 122 | Prism.languages.csharp = Prism.languages.extend('clike', {
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| 123 | string: [
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| 124 | {
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| 125 | pattern: re(/(^|[^$\\])<<0>>/.source, [verbatimString]),
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| 126 | lookbehind: true,
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| 127 | greedy: true
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| 128 | },
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| 129 | {
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| 130 | pattern: re(/(^|[^@$\\])<<0>>/.source, [regularString]),
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| 131 | lookbehind: true,
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| 132 | greedy: true
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| 133 | }
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| 134 | ],
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| 135 | 'class-name': [
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| 136 | {
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| 137 | // Using static
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| 138 | // using static System.Math;
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| 139 | pattern: re(/(\busing\s+static\s+)<<0>>(?=\s*;)/.source, [
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| 140 | identifier
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| 141 | ]),
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| 142 | lookbehind: true,
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| 143 | inside: typeInside
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| 144 | },
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| 145 | {
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| 146 | // Using alias (type)
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| 147 | // using Project = PC.MyCompany.Project;
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| 148 | pattern: re(/(\busing\s+<<0>>\s*=\s*)<<1>>(?=\s*;)/.source, [
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| 149 | name,
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| 150 | typeExpression
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| 151 | ]),
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| 152 | lookbehind: true,
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| 153 | inside: typeInside
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| 154 | },
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| 155 | {
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| 156 | // Using alias (alias)
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| 157 | // using Project = PC.MyCompany.Project;
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| 158 | pattern: re(/(\busing\s+)<<0>>(?=\s*=)/.source, [name]),
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| 159 | lookbehind: true
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| 160 | },
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| 161 | {
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| 162 | // Type declarations
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| 163 | // class Foo<A, B>
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| 164 | // interface Foo<out A, B>
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| 165 | pattern: re(/(\b<<0>>\s+)<<1>>/.source, [
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| 166 | typeDeclarationKeywords,
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| 167 | genericName
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| 168 | ]),
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| 169 | lookbehind: true,
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| 170 | inside: typeInside
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| 171 | },
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| 172 | {
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| 173 | // Single catch exception declaration
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| 174 | // catch(Foo)
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| 175 | // (things like catch(Foo e) is covered by variable declaration)
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| 176 | pattern: re(/(\bcatch\s*\(\s*)<<0>>/.source, [identifier]),
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| 177 | lookbehind: true,
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| 178 | inside: typeInside
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| 179 | },
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| 180 | {
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| 181 | // Name of the type parameter of generic constraints
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| 182 | // where Foo : class
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| 183 | pattern: re(/(\bwhere\s+)<<0>>/.source, [name]),
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| 184 | lookbehind: true
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| 185 | },
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| 186 | {
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| 187 | // Casts and checks via as and is.
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| 188 | // as Foo<A>, is Bar<B>
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| 189 | // (things like if(a is Foo b) is covered by variable declaration)
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| 190 | pattern: re(/(\b(?:is(?:\s+not)?|as)\s+)<<0>>/.source, [
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| 191 | typeExpressionWithoutTuple
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| 192 | ]),
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| 193 | lookbehind: true,
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| 194 | inside: typeInside
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| 195 | },
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| 196 | {
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| 197 | // Variable, field and parameter declaration
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| 198 | // (Foo bar, Bar baz, Foo[,,] bay, Foo<Bar, FooBar<Bar>> bax)
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| 199 | pattern: re(
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| 200 | /\b<<0>>(?=\s+(?!<<1>>|with\s*\{)<<2>>(?:\s*[=,;:{)\]]|\s+(?:in|when)\b))/
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| 201 | .source,
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| 202 | [typeExpression, nonContextualKeywords, name]
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| 203 | ),
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| 204 | inside: typeInside
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| 205 | }
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| 206 | ],
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| 207 | keyword: keywords,
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| 208 | // https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/language-specification/lexical-structure#literals
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| 209 | number:
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| 210 | /(?:\b0(?:x[\da-f_]*[\da-f]|b[01_]*[01])|(?:\B\.\d+(?:_+\d+)*|\b\d+(?:_+\d+)*(?:\.\d+(?:_+\d+)*)?)(?:e[-+]?\d+(?:_+\d+)*)?)(?:[dflmu]|lu|ul)?\b/i,
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| 211 | operator: />>=?|<<=?|[-=]>|([-+&|])\1|~|\?\?=?|[-+*/%&|^!=<>]=?/,
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| 212 | punctuation: /\?\.?|::|[{}[\];(),.:]/
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| 213 | })
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| 214 | Prism.languages.insertBefore('csharp', 'number', {
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| 215 | range: {
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| 216 | pattern: /\.\./,
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| 217 | alias: 'operator'
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| 218 | }
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| 219 | })
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| 220 | Prism.languages.insertBefore('csharp', 'punctuation', {
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| 221 | 'named-parameter': {
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| 222 | pattern: re(/([(,]\s*)<<0>>(?=\s*:)/.source, [name]),
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| 223 | lookbehind: true,
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| 224 | alias: 'punctuation'
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| 225 | }
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| 226 | })
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| 227 | Prism.languages.insertBefore('csharp', 'class-name', {
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| 228 | namespace: {
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| 229 | // namespace Foo.Bar {}
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| 230 | // using Foo.Bar;
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| 231 | pattern: re(
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| 232 | /(\b(?:namespace|using)\s+)<<0>>(?:\s*\.\s*<<0>>)*(?=\s*[;{])/.source,
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| 233 | [name]
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| 234 | ),
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| 235 | lookbehind: true,
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| 236 | inside: {
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| 237 | punctuation: /\./
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| 238 | }
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| 239 | },
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| 240 | 'type-expression': {
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| 241 | // default(Foo), typeof(Foo<Bar>), sizeof(int)
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| 242 | pattern: re(
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| 243 | /(\b(?:default|sizeof|typeof)\s*\(\s*(?!\s))(?:[^()\s]|\s(?!\s)|<<0>>)*(?=\s*\))/
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| 244 | .source,
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| 245 | [nestedRound]
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| 246 | ),
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| 247 | lookbehind: true,
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| 248 | alias: 'class-name',
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| 249 | inside: typeInside
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| 250 | },
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| 251 | 'return-type': {
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| 252 | // Foo<Bar> ForBar(); Foo IFoo.Bar() => 0
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| 253 | // int this[int index] => 0; T IReadOnlyList<T>.this[int index] => this[index];
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| 254 | // int Foo => 0; int Foo { get; set } = 0;
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| 255 | pattern: re(
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| 256 | /<<0>>(?=\s+(?:<<1>>\s*(?:=>|[({]|\.\s*this\s*\[)|this\s*\[))/.source,
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| 257 | [typeExpression, identifier]
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| 258 | ),
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| 259 | inside: typeInside,
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| 260 | alias: 'class-name'
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| 261 | },
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| 262 | 'constructor-invocation': {
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| 263 | // new List<Foo<Bar[]>> { }
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| 264 | pattern: re(/(\bnew\s+)<<0>>(?=\s*[[({])/.source, [typeExpression]),
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| 265 | lookbehind: true,
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| 266 | inside: typeInside,
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| 267 | alias: 'class-name'
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| 268 | },
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| 269 | /*'explicit-implementation': {
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| 270 | // int IFoo<Foo>.Bar => 0; void IFoo<Foo<Foo>>.Foo<T>();
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| 271 | pattern: replace(/\b<<0>>(?=\.<<1>>)/, className, methodOrPropertyDeclaration),
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| 272 | inside: classNameInside,
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| 273 | alias: 'class-name'
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| 274 | },*/
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| 275 | 'generic-method': {
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| 276 | // foo<Bar>()
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| 277 | pattern: re(/<<0>>\s*<<1>>(?=\s*\()/.source, [name, generic]),
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| 278 | inside: {
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| 279 | function: re(/^<<0>>/.source, [name]),
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| 280 | generic: {
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| 281 | pattern: RegExp(generic),
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| 282 | alias: 'class-name',
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| 283 | inside: typeInside
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| 284 | }
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| 285 | }
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| 286 | },
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| 287 | 'type-list': {
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| 288 | // The list of types inherited or of generic constraints
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| 289 | // class Foo<F> : Bar, IList<FooBar>
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| 290 | // where F : Bar, IList<int>
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| 291 | pattern: re(
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| 292 | /\b((?:<<0>>\s+<<1>>|record\s+<<1>>\s*<<5>>|where\s+<<2>>)\s*:\s*)(?:<<3>>|<<4>>|<<1>>\s*<<5>>|<<6>>)(?:\s*,\s*(?:<<3>>|<<4>>|<<6>>))*(?=\s*(?:where|[{;]|=>|$))/
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| 293 | .source,
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| 294 | [
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| 295 | typeDeclarationKeywords,
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| 296 | genericName,
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| 297 | name,
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| 298 | typeExpression,
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| 299 | keywords.source,
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| 300 | nestedRound,
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| 301 | /\bnew\s*\(\s*\)/.source
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| 302 | ]
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| 303 | ),
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| 304 | lookbehind: true,
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| 305 | inside: {
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| 306 | 'record-arguments': {
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| 307 | pattern: re(/(^(?!new\s*\()<<0>>\s*)<<1>>/.source, [
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| 308 | genericName,
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| 309 | nestedRound
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| 310 | ]),
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| 311 | lookbehind: true,
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| 312 | greedy: true,
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| 313 | inside: Prism.languages.csharp
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| 314 | },
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| 315 | keyword: keywords,
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| 316 | 'class-name': {
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| 317 | pattern: RegExp(typeExpression),
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| 318 | greedy: true,
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| 319 | inside: typeInside
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| 320 | },
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| 321 | punctuation: /[,()]/
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| 322 | }
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| 323 | },
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| 324 | preprocessor: {
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| 325 | pattern: /(^[\t ]*)#.*/m,
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| 326 | lookbehind: true,
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| 327 | alias: 'property',
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| 328 | inside: {
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| 329 | // highlight preprocessor directives as keywords
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| 330 | directive: {
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| 331 | pattern:
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| 332 | /(#)\b(?:define|elif|else|endif|endregion|error|if|line|nullable|pragma|region|undef|warning)\b/,
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| 333 | lookbehind: true,
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| 334 | alias: 'keyword'
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| 335 | }
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| 336 | }
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| 337 | }
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| 338 | }) // attributes
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| 339 | var regularStringOrCharacter = regularString + '|' + character
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| 340 | var regularStringCharacterOrComment = replace(
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| 341 | /\/(?![*/])|\/\/[^\r\n]*[\r\n]|\/\*(?:[^*]|\*(?!\/))*\*\/|<<0>>/.source,
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| 342 | [regularStringOrCharacter]
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| 343 | )
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| 344 | var roundExpression = nested(
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| 345 | replace(/[^"'/()]|<<0>>|\(<<self>>*\)/.source, [
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| 346 | regularStringCharacterOrComment
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| 347 | ]),
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| 348 | 2
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| 349 | ) // https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/attributes/#attribute-targets
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| 350 | var attrTarget =
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| 351 | /\b(?:assembly|event|field|method|module|param|property|return|type)\b/
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| 352 | .source
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| 353 | var attr = replace(/<<0>>(?:\s*\(<<1>>*\))?/.source, [
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| 354 | identifier,
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| 355 | roundExpression
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| 356 | ])
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| 357 | Prism.languages.insertBefore('csharp', 'class-name', {
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| 358 | attribute: {
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| 359 | // Attributes
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| 360 | // [Foo], [Foo(1), Bar(2, Prop = "foo")], [return: Foo(1), Bar(2)], [assembly: Foo(Bar)]
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| 361 | pattern: re(
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| 362 | /((?:^|[^\s\w>)?])\s*\[\s*)(?:<<0>>\s*:\s*)?<<1>>(?:\s*,\s*<<1>>)*(?=\s*\])/
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| 363 | .source,
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| 364 | [attrTarget, attr]
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| 365 | ),
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| 366 | lookbehind: true,
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| 367 | greedy: true,
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| 368 | inside: {
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| 369 | target: {
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| 370 | pattern: re(/^<<0>>(?=\s*:)/.source, [attrTarget]),
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| 371 | alias: 'keyword'
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| 372 | },
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| 373 | 'attribute-arguments': {
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| 374 | pattern: re(/\(<<0>>*\)/.source, [roundExpression]),
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| 375 | inside: Prism.languages.csharp
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| 376 | },
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| 377 | 'class-name': {
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| 378 | pattern: RegExp(identifier),
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| 379 | inside: {
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| 380 | punctuation: /\./
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| 381 | }
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| 382 | },
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| 383 | punctuation: /[:,]/
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| 384 | }
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| 385 | }
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| 386 | }) // string interpolation
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| 387 | var formatString = /:[^}\r\n]+/.source // multi line
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| 388 | var mInterpolationRound = nested(
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| 389 | replace(/[^"'/()]|<<0>>|\(<<self>>*\)/.source, [
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| 390 | regularStringCharacterOrComment
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| 391 | ]),
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| 392 | 2
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| 393 | )
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| 394 | var mInterpolation = replace(/\{(?!\{)(?:(?![}:])<<0>>)*<<1>>?\}/.source, [
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| 395 | mInterpolationRound,
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| 396 | formatString
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| 397 | ]) // single line
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| 398 | var sInterpolationRound = nested(
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| 399 | replace(
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| 400 | /[^"'/()]|\/(?!\*)|\/\*(?:[^*]|\*(?!\/))*\*\/|<<0>>|\(<<self>>*\)/
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| 401 | .source,
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| 402 | [regularStringOrCharacter]
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| 403 | ),
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| 404 | 2
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| 405 | )
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| 406 | var sInterpolation = replace(/\{(?!\{)(?:(?![}:])<<0>>)*<<1>>?\}/.source, [
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| 407 | sInterpolationRound,
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| 408 | formatString
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| 409 | ])
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| 410 | function createInterpolationInside(interpolation, interpolationRound) {
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| 411 | return {
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| 412 | interpolation: {
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| 413 | pattern: re(/((?:^|[^{])(?:\{\{)*)<<0>>/.source, [interpolation]),
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| 414 | lookbehind: true,
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| 415 | inside: {
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| 416 | 'format-string': {
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| 417 | pattern: re(/(^\{(?:(?![}:])<<0>>)*)<<1>>(?=\}$)/.source, [
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| 418 | interpolationRound,
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| 419 | formatString
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| 420 | ]),
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| 421 | lookbehind: true,
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| 422 | inside: {
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| 423 | punctuation: /^:/
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| 424 | }
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| 425 | },
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| 426 | punctuation: /^\{|\}$/,
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| 427 | expression: {
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| 428 | pattern: /[\s\S]+/,
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| 429 | alias: 'language-csharp',
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| 430 | inside: Prism.languages.csharp
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| 431 | }
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| 432 | }
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| 433 | },
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| 434 | string: /[\s\S]+/
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| 435 | }
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| 436 | }
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| 437 | Prism.languages.insertBefore('csharp', 'string', {
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| 438 | 'interpolation-string': [
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| 439 | {
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| 440 | pattern: re(
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| 441 | /(^|[^\\])(?:\$@|@\$)"(?:""|\\[\s\S]|\{\{|<<0>>|[^\\{"])*"/.source,
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| 442 | [mInterpolation]
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|---|
| 443 | ),
|
|---|
| 444 | lookbehind: true,
|
|---|
| 445 | greedy: true,
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|---|
| 446 | inside: createInterpolationInside(mInterpolation, mInterpolationRound)
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| 447 | },
|
|---|
| 448 | {
|
|---|
| 449 | pattern: re(/(^|[^@\\])\$"(?:\\.|\{\{|<<0>>|[^\\"{])*"/.source, [
|
|---|
| 450 | sInterpolation
|
|---|
| 451 | ]),
|
|---|
| 452 | lookbehind: true,
|
|---|
| 453 | greedy: true,
|
|---|
| 454 | inside: createInterpolationInside(sInterpolation, sInterpolationRound)
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|---|
| 455 | }
|
|---|
| 456 | ],
|
|---|
| 457 | char: {
|
|---|
| 458 | pattern: RegExp(character),
|
|---|
| 459 | greedy: true
|
|---|
| 460 | }
|
|---|
| 461 | })
|
|---|
| 462 | Prism.languages.dotnet = Prism.languages.cs = Prism.languages.csharp
|
|---|
| 463 | })(Prism)
|
|---|
| 464 | }
|
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