08-27-周三_17-09-29

node_modules/prismjs/components/prism-regex.js

@@ -0,0 +1,97 @@
+(function (Prism) {
+
+	var specialEscape = {
+		pattern: /\\[\\(){}[\]^$+*?|.]/,
+		alias: 'escape'
+	};
+	var escape = /\\(?:x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]+\}|c[a-zA-Z]|0[0-7]{0,2}|[123][0-7]{2}|.)/
+	var charClass = /\\[wsd]|\.|\\p{[^{}]+}/i
+
+	var rangeChar = '(?:[^\\\\-]|' + escape.source + ')';
+	var range = RegExp(rangeChar + '-' + rangeChar);
+
+	// the name of a capturing group
+	var groupName = {
+		pattern: /(<|')[^<>']+(?=[>']$)/,
+		lookbehind: true,
+		alias: 'variable'
+	};
+
+	var backreference = [
+		/\\(?![123][0-7]{2})[1-9]/, // a backreference which is not an octal escape
+		{
+			pattern: /\\k<[^<>']+>/,
+			inside: {
+				'group-name': groupName
+			}
+		}
+	];
+
+	Prism.languages.regex = {
+		'charset': {
+			pattern: /((?:^|[^\\])(?:\\\\)*)\[(?:[^\\\]]|\\[\s\S])*\]/,
+			lookbehind: true,
+			inside: {
+				'charset-negation': {
+					pattern: /(^\[)\^/,
+					lookbehind: true,
+				},
+				'charset-punctuation': /^\[|\]$/,
+				'range': {
+					pattern: range,
+					inside: {
+						'escape': escape,
+						'range-punctuation': /-/
+					}
+				},
+				'special-escape': specialEscape,
+				'charclass': charClass,
+				'backreference': backreference,
+				'escape': escape
+			}
+		},
+		'special-escape': specialEscape,
+		'charclass': charClass,
+		'backreference': backreference,
+		'anchor': /[$^]|\\[ABbGZz]/,
+		'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: /\((?:\?(?:<[^<>']+>|'[^<>']+'|[>:]|<?[=!]|[idmnsuxU]+(?:-[idmnsuxU]+)?:?))?/,
+				inside: {
+					'group-name': groupName
+				}
+			},
+			/\)/
+		],
+		'quantifier': /[+*?]|\{(?:\d+,?\d*)\}/,
+		'alternation': /\|/
+	};
+
+
+	[
+		'actionscript',
+		'coffescript',
+		'flow',
+		'javascript',
+		'typescript',
+		'vala'
+	].forEach(function (lang) {
+		var grammar = Prism.languages[lang];
+		if (grammar) {
+			grammar['regex'].inside = {
+				'regex-flags': /[a-z]+$/,
+				'regex-delimiter': /^\/|\/$/,
+				'language-regex': {
+					pattern: /[\s\S]+/,
+					inside: Prism.languages.regex
+				}
+			};
+		}
+	});
+
+}(Prism))