Matches any valid IPv4 address with, optionally, a CIDR suffix. 0.0.0.0 to 255.255.255.255 and 1.1.1.1/0 to 1.1.1.1/32. Use the following regex if you don't want to allow the CIDR suffix. /^(?:(?:[1-9]?[0-9]|10-9|2(?:0-4|5[0-5]))\.){3}(?:[1-9]?[0-9]|10-9|2(?:0-4|5[0-5]))$/...

Matches filenames of MediaWiki history dumps.

I use this to find files with two or more extensions (i.e. file.txt.txt). This will work with files with 3 or 4 character or numeric (or both) file extensions (i.e. pdf, xlsx).

Match a URL and capture its parts. Please suggest your improvements.

Should match any valid JavaScript number literal. Allow _ as a numerical separator, leading/trailing dot and 0, and test for prefix 0b (binary), 0o (octal), and 0x (hexadecimal). See the second paragraph of EDIT 4 in this StackOverflow answer by me for matching JS numbers.

I'm dealing quite a lot w this. This CSV Parser is used for Js (particularly for my current project wrting script for After Effects through ExtendScript)

Randomizer Template

Remove caracteres ocultos (\x160) e arruma textos com espaços extras antes e depois da palavra para dados tabulados (com tab)

CRON validation Validates CRON pattern (Quartz) and supports groups. Useful for e.g. typescript or other typed languages. The following greoups are covered: second...

Ateco Groups Regex to identify the groups that make up the ateco code, based on its structure. More details: https://www.istat.it/it/archivio/17888 Valid Ateco: 01 - 28.2 - 24.45 - 46.74.1 - 46.73.22...

A more general match for numbers with units/dimensions in plaintext. This is unoptimized, a bit rough, and leaves out plenty of units while including some oddities. Use it as the first step to something better if you're linting md files. This was good enough for my use case, which doesn't care much ...

Matches quantities dimensioned by SI units in typical markdown-formatted plaintext documents. Replaces any spaces or HTML entities between the number and its dimensions with a "narrow non-breaking space" character. This character may fallback to a "thin space" due to its font support. The lexicograp...

Regex supporting new old license plates from Belgium but dus not support custom license plates

Match Chinese Digits less than 1×10^16, such as “一千两百三十四万”、“八萬点七六五”、“玖仟玖佰玖拾玖万玖仟玖佰玖拾玖亿玖仟玖佰玖拾玖万玖仟玖佰玖拾玖点玖玖玖玖玖玖玖玖玖玖玖玖玖玖玖玖”，Upper and lower case Chinese can be mixed, but Chinese numbers and English numbers cannot be mixed. Illegal numbers will not be matched. For example: “两十六” will not be matched, as t...

// 1st: aashirling or vidhiling matches. empty string otherwise. // 2nd: i or e or o or r of lakar name l_ट or l_ङ. "" when अ. // 3rd: ट or ङ. // 4 through 13 are 9 dhatu forms Purusha(/)].

Parsing OBIS Data

^\h{4}段首4个横向空格 +不包含左括号、换行符号的其他字符，1~无限循环 \((.*)\)$捕获处于（）之中的任意字符内容，右括号在段尾

TLDR: It can be used to capture all the paragraphs from some webnovel sites. *update: testing other sites, I've found it lacking. This is intended to match a tag and it's closing tag. It only matches and captures if there are no other html tags nested in the tag. There is room to adjust with the...

Matches all non LATIN-9 (ISO 8859-15) characters.

Parse Task Titles and capture results/output of each task