Regular Expressions 101

Removes all words that are NOT followed by a space, followed by the same word

Select all dark: classes in a project to remove it if you want that.

Remove leading and trailing spaces from multiline text.

Remove all empty lines from text document.

at least 1 lower-case character at least 1 upper-case character at least 1 number or special character

to detect date format YYYY-MM-DD ony starting from 1900

Nothing at the moment

regex to match a product page url

I use a common set of tags for capturing content I might want to consume (e.g., books, podcasts, videos, articles, etc.) in Roam Research.

Matches RFC 4646 see https://www.rfc-editor.org/rfc/rfc4646.txt

Regex that matches only valid Minecraft usernames

improvement of the regular expression seen in this meme: https://old.reddit.com/r/ProgrammerHumor/comments/vxhbku/a_regex_god/

A "detector" thing

This regexp match an ip address in v6 or v4 form. Included V6 compact form (:: in place of :0000:). Doesn't matches addresses range or mixed format (like y:y:y:y:y:y:x.x.x.x)

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test

infinitivo

Usage of named capture group.

(Element CI: )\d{4}

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