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Check a small regular expression

A small illustrative toolbox for repeatable developer tasks.

Open Dev-Stash

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Use a literal expression and inspect the expected match.

Try a concrete input

The expression ^[a-z]+$ accepts sample and rejects sample-2. Anchoring both ends is what makes the second string fail: without the anchors, the engine would match the leading sample and report a success the author did not intend.

What this page exercises

This use case is illustrative. It shows the shape and route of a use-case page rather than describing a released capability. It also links out of its own collection: install the example workflow to run the expression yourself, and see the CLI reference for the fields that decide which files an expression is applied to.