regex library

Extensions

MarkdownLinkOpenRegexExtension on RegExpMatch

ValidCashtagRegexExtension on RegExpMatch

ValidHashtagRegexExtension on RegExpMatch

ValidMentionRegexExtension on RegExpMatch

ValidUrlRegexExtension on RegExpMatch

Constants

astralLetterAndMarks → const String

Unicode's astral planes consist of the supplementary code points that are outside of the Basic Multilingual Plane (BMP).

astralNumerals → const String

The astral planes in Unicode comprise supplementary code points that reside outside of the Basic Multilingual Plane (BMP).

atSigns → const String

bmpLetterAndMarks → const String

This pattern is designed to capture a wide range of letters, marks, and other characters from various scripts and symbol sets that reside within the BMP.

bmpNumerals → const String

This pattern is tailored to identify numerals from a variety of scripts and regions present within the BMP.

cashSigns → const String

Matches the cashtag prefix character. The dollar sign $ is escaped to avoid being treated as Dart string interpolation.

cjkLettersAndMarks → const String

A string representing the Unicode ranges for CJK (Chinese, Japanese, Korean) letters used inside URL paths and query strings.

codePoint → const String

This pattern identifies two main groups of characters:

cyrillicLettersAndMarks → const String

A string representing the Unicode range for Cyrillic letters and marks.

directionalMarkersGroup → const String

A string containing Unicode directional markers.

emoji → const String

endHashtag → const String

hashSigns → const String

Matches a hashtag marker. Both the ASCII number sign # and the full-width number sign ＃ (U+FF03) are accepted, mirroring the official TAG_REGEX ([#＃]) so that hashtags typed with a full-width ＃ on Japanese IMEs are detected.

hashtagAlpha → const String

hashtagAlphaNumeric → const String

This pattern captures characters that are typically present in hashtags.

hashtagBoundary → const String

This pattern captures the beginning (^), end ($), and certain specific characters that can be considered as boundaries for hashtags. These boundaries help in accurately extracting hashtags from text.

hashtagConcatChars → const String

hashtagEmoji → const String

A character-class fragment that matches emoji characters allowed inside a hashtag body.

hashtagSpecialChars → const String

This pattern captures a variety of special characters that might appear within hashtags across multiple languages and scripts.

invalidCharsGroup → const String

A string containing Unicode representations of characters considered invalid in certain contexts.

invalidDomainChars → const String

invalidDomainChars is a constant RegExp pattern string, designed to match any characters that are considered invalid within a domain name context.

latinAccentChars → const String

A string representing the Unicode range for Latin letters with accents and diacritical marks.

markdownLinkOpen → const String

Matches only the opening of a markdown link: the [text] label followed by optional whitespace and the ( that begins the destination.

nonBmpCodePairs → const String

In the UTF-16 encoding scheme, characters outside the Basic Multilingual Plane (BMP) are represented using a pair of 16-bit units called surrogate pairs. This pattern is designed to identify these pairs:

punct → const String

spacesGroup → const String

A string representing the Unicode range for various space or whitespace characters.

validAsciiDomain → const String

validCashtag → const String

A cashtag is a $ prefixed ticker-like symbol composed of an ASCII letter optionally followed by up to four more ASCII letters or digits, so the symbol itself is 1 to 5 characters long.

validCctld → const String

validCctld is a constant RegExp pattern string constructed to match a wide range of valid country code top-level domains (ccTLDs). The string encompasses an extensive list of ccTLDs representing various countries and territories, utilizing different scripts and alphabets.

validDomain → const String

validDomain is a constant RegExp pattern string used to validate domain names by combining several smaller pattern strings, each representing a different part or type of domain.

validDomainChars → const String

validDomainChars is a constant RegExp pattern string intended to match any character that is not included in the invalidDomainChars string, representing valid characters allowed in a domain name.

validDomainName → const String

validGeneralUrlPathChars → const String

validGtld → const String

validHashtag → const String

validMention → const String

validMentionPrecedingChars → const String

The character that may precede a mention.

validPortNumber → const String

A string representing a regular expression pattern used to match valid port numbers in a URL.

validPunycode → const String

validSubdomain → const String

validUrl → const String

validUrlBalancedParens → const String

Allow URL paths to contain up to two nested levels of balanced parens

validUrlPath → const String

validUrlPathEndingChars → const String

Valid end-of-path characters (so /foo. does not gobble the period).

validUrlPrecedingChars → const String

validUrlQueryChars → const String

validUrlQueryEndingChars → const String

Properties

emojiRegex → RegExp

final

endHashtagRegex → RegExp

final

markdownLinkOpenRegex → RegExp

final

validAsciiDomainRegex → RegExp

final

validCashtagRegex → RegExp

final

validHashtagRegex → RegExp

final

validMentionRegex → RegExp

final

validUrlRegex → RegExp

final

Functions

getFirstValidDomain(String source) → String

Returns the first ASCII-only domain found in source.

isValidUrl(String input) → bool