Branch
Hash :
18c828a6
Author :
Date :
2021-11-01T13:50:23
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Prism.languages.swift = {
'comment': {
// Nested comments are supported up to 2 levels
pattern: /(^|[^\\:])(?:\/\/.*|\/\*(?:[^/*]|\/(?!\*)|\*(?!\/)|\/\*(?:[^*]|\*(?!\/))*\*\/)*\*\/)/,
lookbehind: true,
greedy: true
},
'string-literal': [
// https://docs.swift.org/swift-book/LanguageGuide/StringsAndCharacters.html
{
pattern: RegExp(
/(^|[^"#])/.source
+ '(?:'
// single-line string
+ /"(?:\\(?:\((?:[^()]|\([^()]*\))*\)|\r\n|[^(])|[^\\\r\n"])*"/.source
+ '|'
// multi-line string
+ /"""(?:\\(?:\((?:[^()]|\([^()]*\))*\)|[^(])|[^\\"]|"(?!""))*"""/.source
+ ')'
+ /(?!["#])/.source
),
lookbehind: true,
greedy: true,
inside: {
'interpolation': {
pattern: /(\\\()(?:[^()]|\([^()]*\))*(?=\))/,
lookbehind: true,
inside: null // see below
},
'interpolation-punctuation': {
pattern: /^\)|\\\($/,
alias: 'punctuation'
},
'punctuation': /\\(?=[\r\n])/,
'string': /[\s\S]+/
}
},
{
pattern: RegExp(
/(^|[^"#])(#+)/.source
+ '(?:'
// single-line string
+ /"(?:\\(?:#+\((?:[^()]|\([^()]*\))*\)|\r\n|[^#])|[^\\\r\n])*?"/.source
+ '|'
// multi-line string
+ /"""(?:\\(?:#+\((?:[^()]|\([^()]*\))*\)|[^#])|[^\\])*?"""/.source
+ ')'
+ '\\2'
),
lookbehind: true,
greedy: true,
inside: {
'interpolation': {
pattern: /(\\#+\()(?:[^()]|\([^()]*\))*(?=\))/,
lookbehind: true,
inside: null // see below
},
'interpolation-punctuation': {
pattern: /^\)|\\#+\($/,
alias: 'punctuation'
},
'string': /[\s\S]+/
}
},
],
'directive': {
// directives with conditions
pattern: RegExp(
/#/.source
+ '(?:'
+ (
/(?:elseif|if)\b/.source
+ '(?:[ \t]*'
// This regex is a little complex. It's equivalent to this:
// (?:![ \t]*)?(?:\b\w+\b(?:[ \t]*<round>)?|<round>)(?:[ \t]*(?:&&|\|\|))?
// where <round> is a general parentheses expression.
+ /(?:![ \t]*)?(?:\b\w+\b(?:[ \t]*\((?:[^()]|\([^()]*\))*\))?|\((?:[^()]|\([^()]*\))*\))(?:[ \t]*(?:&&|\|\|))?/.source
+ ')+'
)
+ '|'
+ /(?:else|endif)\b/.source
+ ')'
),
alias: 'property',
inside: {
'directive-name': /^#\w+/,
'boolean': /\b(?:false|true)\b/,
'number': /\b\d+(?:\.\d+)*\b/,
'operator': /!|&&|\|\||[<>]=?/,
'punctuation': /[(),]/
}
},
'literal': {
pattern: /#(?:colorLiteral|column|dsohandle|file(?:ID|Literal|Path)?|function|imageLiteral|line)\b/,
alias: 'constant'
},
'other-directive': {
pattern: /#\w+\b/,
alias: 'property'
},
'attribute': {
pattern: /@\w+/,
alias: 'atrule'
},
'function-definition': {
pattern: /(\bfunc\s+)\w+/,
lookbehind: true,
alias: 'function'
},
'label': {
// https://docs.swift.org/swift-book/LanguageGuide/ControlFlow.html#ID141
pattern: /\b(break|continue)\s+\w+|\b[a-zA-Z_]\w*(?=\s*:\s*(?:for|repeat|while)\b)/,
lookbehind: true,
alias: 'important'
},
'keyword': /\b(?:Any|Protocol|Self|Type|actor|as|assignment|associatedtype|associativity|async|await|break|case|catch|class|continue|convenience|default|defer|deinit|didSet|do|dynamic|else|enum|extension|fallthrough|fileprivate|final|for|func|get|guard|higherThan|if|import|in|indirect|infix|init|inout|internal|is|isolated|lazy|left|let|lowerThan|mutating|none|nonisolated|nonmutating|open|operator|optional|override|postfix|precedencegroup|prefix|private|protocol|public|repeat|required|rethrows|return|right|safe|self|set|some|static|struct|subscript|super|switch|throw|throws|try|typealias|unowned|unsafe|var|weak|where|while|willSet)\b/,
'boolean': /\b(?:false|true)\b/,
'nil': {
pattern: /\bnil\b/,
alias: 'constant'
},
'short-argument': /\$\d+\b/,
'omit': {
pattern: /\b_\b/,
alias: 'keyword'
},
'number': /\b(?:[\d_]+(?:\.[\de_]+)?|0x[a-f0-9_]+(?:\.[a-f0-9p_]+)?|0b[01_]+|0o[0-7_]+)\b/i,
// A class name must start with an upper-case letter and be either 1 letter long or contain a lower-case letter.
'class-name': /\b[A-Z](?:[A-Z_\d]*[a-z]\w*)?\b/,
'function': /\b[a-z_]\w*(?=\s*\()/i,
'constant': /\b(?:[A-Z_]{2,}|k[A-Z][A-Za-z_]+)\b/,
// Operators are generic in Swift. Developers can even create new operators (e.g. +++).
// https://docs.swift.org/swift-book/ReferenceManual/zzSummaryOfTheGrammar.html#ID481
// This regex only supports ASCII operators.
'operator': /[-+*/%=!<>&|^~?]+|\.[.\-+*/%=!<>&|^~?]+/,
'punctuation': /[{}[\]();,.:\\]/
};
Prism.languages.swift['string-literal'].forEach(function (rule) {
rule.inside['interpolation'].inside = Prism.languages.swift;
});