This regex pattern is designed to validate URLs with the following key features: Protocol Support: Optionally matches http:// or https://. Subdomain Handling: Supports optional www. and valid subdomains. Domain Name Validation: Ensures proper formatting of domain names: Prevents double hyphe...

Mermaid brackets are enclosed in inverted commas for validity

increase the head level of the markdown titles - that is add extra #.

convert the multiline expressions into obsidian latex compatible. That is add - $$...$$

Detects unescaped XML Node Attributes and InnerText so that they can be escaped.

This version has a very high accuracy - few extraneous char matches. Very verbose, heavy usage of look-aheads, look-behinds, and mostly 'inclusive' character class matching. (as opposed to the exclusion strategy in this example)

it check the html content with like html tag but not html. somthing this not html content but it has content like html tag.

A pcre that capture a 4-digit numeric that does not allow a leading zero and no repeat digits.

This regular expression splits an address line like for example "1117 Franklin Blvd" into the street name and house number. It also supports addresses where street name and house number are the other way around (e.g. "Mustermannstr. 1"). Furthermore, this regular expression also supports address lin...

checklists item

/* -- This is a RegEx for validating one Italian ATECO code. -- For original specification visit: http://www.istat.it/it/archivio/17888 -- Valid: */ 1...

Basic sas boundaries, %macro proc %include etc

This validates version numbers that adhear to the Semantic protocol e.g. in form of xx.xx.xx or 1.2.2

hash tagging actual title or description format regex

#tagging original form regex