Not fully compliant, please don't use for security or for anything extremely important. Might be a good jumping off point though (although its a bit hellish looking)

Cellule.Nom

Full Name convention either as "firstname lastname" or "lastname, firstname" FirstName must be at least 1character long. LastName must be at least 2characters long. Accepts multiple worded name Optional Middle Initial (with period, up to 2 maximum initials). Placement either middle or last depending...

Matches a string if the string represents a Well-Formed-Formula in a Truth-Functional-Logic with the symbols {⊥, ¬, ∧, ∨, →, ↔} The rules are as follows: https://en.wikipedia.org/wiki/Well-formed_formula#Propositional_calculus (Outside parenthesis are omitted)

Matches strings that are Well-formed-formulas in Propositional with the following symbols {⊤,⊥,∧,∨,¬,→,↔} This matches with formulas that are looser then defined by formal syntax (See https://en.wikipedia.org/wiki/Well-formed_formula#Propositional_calculus). Namely, it's able to match with \> No Ext...

DCL

This is a regex for a C-style variable capture. Group 1 is the type, group 2 is the name, group 3 is the operator, and finally, group 4 is the value.

WTFORUMS

/(?: ?\G|^cats are )((?:silly|cute)(?: |$))/

Format YYYY-MM-JJ

#(\w+)\s(\w+)\s(\S+) This allows you to capture C-style compiler directives

Start from 1900-01-01

Follows ISO 8601 standard (YYYY-MM-DD) $1 is year, $2 is month and $3 is day (for substitution)

This is a filter for E-mail id

Exponential Value Identification

Get Complete Domain with protocol, username, Third-Level-Domain, Second-Level-Domain, Top-Level-Domain and Port For Example: Course at https://udemy.com/path/to/course Test at http://user@sample.com/path Something ftp://domain.com:80/any...

match offset from utc offset string returned by the timeZoneName property of an Intl.DateTimeFormat object. (see MDN documentation here)

This code used to validate any email.

change markdown image embeds to html image embeds

self explainatory title, username must not contain any exotic character.