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feat: C# raw string literal #4585

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feat: C# raw string literal #4585

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37 changes: 37 additions & 0 deletions src/basic-languages/csharp/csharp.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -972,5 +972,42 @@ testTokenization('csharp', [
{ startIndex: 45, type: 'delimiter.cs' }
]
}
],

// Raw String Literals
[
{
line: 'var singleLine = """This is a "raw string literal". It can contain characters like , \' and ".""";',
tokens: [
{ startIndex: 0, type: 'keyword.var.cs' },
{ startIndex: 3, type: '' },
{ startIndex: 4, type: 'identifier.cs' },
{ startIndex: 14, type: '' },
{ startIndex: 15, type: 'delimiter.cs' },
{ startIndex: 16, type: '' },
{ startIndex: 17, type: 'string.quote.cs' },
{ startIndex: 20, type: 'string.cs' },
{ startIndex: 93, type: 'string.quote.cs' },
{ startIndex: 96, type: 'delimiter.cs' }
]
}
],

[
{
line: 'var moreQuotes = """" As you can see,"""Raw string literals""" can start and end with more than three double-quotes when needed."""";',
tokens: [
{ startIndex: 0, type: 'keyword.var.cs' },
{ startIndex: 3, type: '' },
{ startIndex: 4, type: 'identifier.cs' },
{ startIndex: 14, type: '' },
{ startIndex: 15, type: 'delimiter.cs' },
{ startIndex: 16, type: '' },
{ startIndex: 17, type: 'string.quote.cs' },
{ startIndex: 21, type: 'string.cs' },
{ startIndex: 128, type: 'string.quote.cs' },
{ startIndex: 132, type: 'delimiter.cs' }
]
}
]
]);
17 changes: 16 additions & 1 deletion src/basic-languages/csharp/csharp.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -269,7 +269,8 @@ export const language = <languages.IMonarchLanguage>{
[/[;,.]/, 'delimiter'],

// strings
[/"([^"\\]|\\.)*$/, 'string.invalid'], // non-teminated string
[/("{3,})/, { token: 'string.quote', next: '@rawstring.$1' }], // raw string literal
[/"([^"\\]|\\.)*$/, 'string.invalid'], // non-terminated string
[/"/, { token: 'string.quote', next: '@string' }],
[/\$\@"/, { token: 'string.quote', next: '@litinterpstring' }],
[/\@"/, { token: 'string.quote', next: '@litstring' }],
Expand Down Expand Up @@ -316,6 +317,20 @@ export const language = <languages.IMonarchLanguage>{
[/"/, { token: 'string.quote', next: '@pop' }]
],

rawstring: [
[/[^"]+/, 'string'],
[
/("{3,})/,
{
cases: {
'$1==$S2': { token: 'string.quote', next: '@pop' },
'@default': { token: 'string' }
}
}
],
[/["]/, 'string']
],

litstring: [
[/[^"]+/, 'string'],
[/""/, 'string.escape'],
Expand Down
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