Regular Expressions 101

numeros

Source: https://html.spec.whatwg.org/#e-mail-state-(type=email)

refer to https://mobile.kapook.com/view7358.html

Udacity AI for Trading - Project 6: Analyzing Stock Sentiment from Twits ( Sentiment Analysis) needs a HTML parsering. Examples came from the actual course exercise. Future improvements I could identify, make it a group and parser each /texttext/ pattern, if necessary ← perhaps it may have some ...

Regex, find almost all text between html tags, for laravel translation

This regex is written for a Joomla plugin. This REGEX force to DOWNLOAD à PDF file instead of showing PDF in browser

Pros: Attribute-aware (but not complete parse) Content-aware (text only) Cons: Might poor performance (unnecessary matches if you work on a ssr thing)...

Gets the canonical link from a html page provided it has one

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 th...

A regex expression that extracts the components of a semantic version and fails if the version does not conform to the semantic version spec. Based on the 2.0.0 spec

Useful for matching/finding and capturing/extracting the titles of HTML heading elements. This was used to identify all heading elements within the body of a web page for the purposes of generating a Table of Contents for the page. Note: This expression could be altered for different HTML element ta...

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...

reading the id tag from the girl harem html

Parses an SGML . It doesn't account for name groups. See https://sgmljs.net/docs/sgmlrefman.html. Note that the "Flavor" should be .NET as things get a little weird with the # matching.

Retirar informações da tabela HTML

show the verification link from the html email

match html and xml brackets () and all their content. It doesn’t match inner text. Useful to remove markup tags from a xml or html string, leaving only the text.

Valid HTML Tag Pattern Which HTML tags are considered invalid: Tags ending with a different tag than what it started. Example: Hello Tags with open attributes (or closed with a different type of quote). Examples: Hello or Hello Which HTML tags are considered valid: Tags ending with the same tag...

This regex is based on the specifications in the w3c documentation. The rules are* very permissive, and some* of this characters actually lead to errors in browsers.

This version of the regex is less permissive than the w3c documentation.. It matches only the common attribute syntax.