python-regex.json

{
	"comment": "Matches Python's regular expression syntax.",
	"fileTypes": [
		"re"
	],
	"foldingStartMarker": "(/\\*|\\{|\\()",
	"foldingStopMarker": "(\\*/|\\}|\\))",
	"name": "Regular Expressions (Python)",
	"patterns": [
		{
			"match": "\\\\[bBAZzG]|\\^|\\$",
			"name": "keyword.control.anchor.regexp"
		},
		{
			"match": "\\\\[1-9][0-9]?",
			"name": "keyword.other.back-reference.regexp"
		},
		{
			"match": "[?+*][?+]?|\\{(\\d+,\\d+|\\d+,|,\\d+|\\d+)\\}\\??",
			"name": "keyword.operator.quantifier.regexp"
		},
		{
			"match": "\\|",
			"name": "keyword.operator.or.regexp"
		},
		{
			"begin": "\\(\\?\\#",
			"end": "\\)",
			"name": "comment.block.regexp"
		},
		{
			"comment": "We are restrictive in what we allow to go after the comment character to avoid false positives, since the availability of comments depend on regexp flags.",
			"match": "(?<=^|\\s)#\\s[[a-zA-Z0-9,. \\t?!-:][^\\x{00}-\\x{7F}]]*$",
			"name": "comment.line.number-sign.regexp"
		},
		{
			"match": "\\(\\?[iLmsux]+\\)",
			"name": "keyword.other.option-toggle.regexp"
		},
		{
			"match": "(\\()(\\?P=([a-zA-Z_][a-zA-Z_0-9]*\\w*))(\\))",
			"name": "keyword.other.back-reference.named.regexp"
		},
		{
			"begin": "(\\()((\\?=)|(\\?!)|(\\?<=)|(\\?<!))",
			"beginCaptures": {
				"1": {
					"name": "punctuation.definition.group.regexp"
				},
				"2": {
					"name": "punctuation.definition.group.assertion.regexp"
				},
				"3": {
					"name": "meta.assertion.look-ahead.regexp"
				},
				"4": {
					"name": "meta.assertion.negative-look-ahead.regexp"
				},
				"5": {
					"name": "meta.assertion.look-behind.regexp"
				},
				"6": {
					"name": "meta.assertion.negative-look-behind.regexp"
				}
			},
			"end": "(\\))",
			"endCaptures": {
				"1": {
					"name": "punctuation.definition.group.regexp"
				}
			},
			"name": "meta.group.assertion.regexp",
			"patterns": [
				{
					"include": "$self"
				}
			]
		},
		{
			"begin": "(\\()(\\?\\(([1-9][0-9]?|[a-zA-Z_][a-zA-Z_0-9]*)\\))",
			"beginCaptures": {
				"1": {
					"name": "punctuation.definition.group.regexp"
				},
				"2": {
					"name": "punctuation.definition.group.assertion.conditional.regexp"
				},
				"3": {
					"name": "entity.name.section.back-reference.regexp"
				}
			},
			"comment": "we can make this more sophisticated to match the | character that separates yes-pattern from no-pattern, but it's not really necessary.",
			"end": "(\\))",
			"name": "meta.group.assertion.conditional.regexp",
			"patterns": [
				{
					"include": "$self"
				}
			]
		},
		{
			"begin": "(\\()((\\?P<)([a-z]\\w*)(>)|(\\?:))?",
			"beginCaptures": {
				"1": {
					"name": "punctuation.definition.group.regexp"
				},
				"3": {
					"name": "punctuation.definition.group.capture.regexp"
				},
				"4": {
					"name": "entity.name.section.group.regexp"
				},
				"5": {
					"name": "punctuation.definition.group.capture.regexp"
				},
				"6": {
					"name": "punctuation.definition.group.no-capture.regexp"
				}
			},
			"end": "(\\))",
			"endCaptures": {
				"1": {
					"name": "punctuation.definition.group.regexp"
				}
			},
			"name": "meta.group.regexp",
			"patterns": [
				{
					"include": "$self"
				}
			]
		},
		{
			"include": "#character-class"
		}
	],
	"repository": {
		"character-class": {
			"patterns": [
				{
					"match": "\\\\[wWsSdDhH]|\\.",
					"name": "constant.character.character-class.regexp"
				},
				{
					"match": "\\\\.",
					"name": "constant.character.escape.backslash.regexp"
				},
				{
					"begin": "(\\[)(\\^)?",
					"beginCaptures": {
						"1": {
							"name": "punctuation.definition.character-class.regexp"
						},
						"2": {
							"name": "keyword.operator.negation.regexp"
						}
					},
					"end": "(\\])",
					"endCaptures": {
						"1": {
							"name": "punctuation.definition.character-class.regexp"
						}
					},
					"name": "constant.other.character-class.set.regexp",
					"patterns": [
						{
							"include": "#character-class"
						},
						{
							"captures": {
								"2": {
									"name": "constant.character.escape.backslash.regexp"
								},
								"4": {
									"name": "constant.character.escape.backslash.regexp"
								}
							},
							"match": "((\\\\.)|.)\\-((\\\\.)|[^\\]])",
							"name": "constant.other.character-class.range.regexp"
						}
					]
				}
			]
		}
	},
	"scopeName": "source.regexp.python"
}