Regular Expressions 101

Regex for Matching Jap Romaji Chars. I am in the middle of making an interface for Anki that works life wanikani. This way I can practice my own cards instead of a set syllabus. For that I need to make a Japanese Kana input, so I went with the good old regex to match all the romaji groups which ca...

Matches any decimal number. Supports positive/negative sign, thousands separators, and implicit zeros.

Matches any mathematically correct decimal number which is not formatted.

Matches any mathematically correct dozenal number which is not formatted.

Matches any dozenal number. Supports positive/negative sign, thousands separators, and implicit zeros.

Matches dozenal numbers. Supports positive/negative sign and thousands separators.

Matches decimal numbers. Supports positive/negative sign and thousands separators.

Regex that matches the old ISBN-10 format and captures all relevant groups. It does not verify that the ISBN is valid though. The format specification is based on the following website: https://isbn-information.com/the-10-digit-isbn.html and the International ISBN Agency user's manual.

Regex that matches the new (as of 2007) ISBN-13 format and captures all relevant groups. It does not verify that the ISBN is valid though. The format specification is based on the following website: https://isbn-information.com/the-13-digit-isbn.html and the International ISBN Agency user's manual.

100.00 10000.00 过滤非 0 开头两位小数

本示例启用了多行匹配 m

/(+)=(+)/gm

it was used in this codewar challenge. and i find i really interesting. Also u can Write it like this if you want /(.)\1+/g it works exactly the same

RegEX IBAN SEPA with spaces

Percentage regex allows integer and float values e.g. 10 // valid 12 // valid 12.34 // valid 12.345 // invalid 99.99 // valid...

Regex for url

The expression is intended for finding one or more embedded Base64 Data URI in an HTML document. It will not find matches for any HTML surrounding the encoded Data URI match ( tag or src attributes), just the encoded data and MIME header, all that's needed to decode. The MIME type is for images in ...

Match binary number (0 | 1), with or not Operand (+ | - | / | *)

Named groups, port in registry, sha256

This expression selects any square brackets and the content inside it. Exemple: [DataTransfer] []...