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|
(function (Prism) {
var specialEscape = {
pattern: /\\[\\(){}[\]^$+*?|.]/,
alias: 'escape',
};
var escape =
/\\(?:x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]+\}|0[0-7]{0,2}|[123][0-7]{2}|c[a-zA-Z]|.)/;
var charSet = {
pattern: /\.|\\[wsd]|\\p\{[^{}]+\}/i,
alias: 'class-name',
};
var charSetWithoutDot = {
pattern: /\\[wsd]|\\p\{[^{}]+\}/i,
alias: 'class-name',
};
var rangeChar = '(?:[^\\\\-]|' + escape.source + ')';
var range = RegExp(rangeChar + '-' + rangeChar);
// the name of a capturing group
var groupName = {
pattern: /(<|')[^<>']+(?=[>']$)/,
lookbehind: true,
alias: 'variable',
};
Prism.languages.regex = {
'char-class': {
pattern: /((?:^|[^\\])(?:\\\\)*)\[(?:[^\\\]]|\\[\s\S])*\]/,
lookbehind: true,
inside: {
'char-class-negation': {
pattern: /(^\[)\^/,
lookbehind: true,
alias: 'operator',
},
'char-class-punctuation': {
pattern: /^\[|\]$/,
alias: 'punctuation',
},
range: {
pattern: range,
inside: {
escape: escape,
'range-punctuation': {
pattern: /-/,
alias: 'operator',
},
},
},
'special-escape': specialEscape,
'char-set': charSetWithoutDot,
escape: escape,
},
},
'special-escape': specialEscape,
'char-set': charSet,
backreference: [
{
// a backreference which is not an octal escape
pattern: /\\(?![123][0-7]{2})[1-9]/,
alias: 'keyword',
},
{
pattern: /\\k<[^<>']+>/,
alias: 'keyword',
inside: {
'group-name': groupName,
},
},
],
anchor: {
pattern: /[$^]|\\[ABbGZz]/,
alias: 'function',
},
escape: escape,
group: [
{
// https://docs.oracle.com/javase/10/docs/api/java/util/regex/Pattern.html
// https://docs.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference?view=netframework-4.7.2#grouping-constructs
// (), (?<name>), (?'name'), (?>), (?:), (?=), (?!), (?<=), (?<!), (?is-m), (?i-m:)
pattern:
/\((?:\?(?:<[^<>']+>|'[^<>']+'|[>:]|<?[=!]|[idmnsuxU]+(?:-[idmnsuxU]+)?:?))?/,
alias: 'punctuation',
inside: {
'group-name': groupName,
},
},
{
pattern: /\)/,
alias: 'punctuation',
},
],
quantifier: {
pattern: /(?:[+*?]|\{\d+(?:,\d*)?\})[?+]?/,
alias: 'number',
},
alternation: {
pattern: /\|/,
alias: 'keyword',
},
};
})(Prism);
|
