Gallery / regex

Identifier validation

Family: regex. Status: Implemented.

Anchors and a bounded repeated character class.

Scope: Regex syntax and structural exploration only. Match evidence requires an external engine.

Preview

Source

regex-identifier.puml

text/plain

@startregex
title Identifier
^[A-Za-z_][A-Za-z0-9_]{0,31}$
@endregex

Download source: regex-identifier.puml

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