TLA+, find specific character in string.

[Ali Javeed]

Hi, I'm new in TLA+. I want to find specific characters or regex in string.
if anyone knows any keyword like the match, contain in other languages or any method. Problem with it is that I don't know how should I do in TLA.
please help me.

[Stephan Merz]

There is no standard library module in TLA+ for matching regular expressions. With some experience, it would not be too hard to define suitable operators based on the operations in the Sequences module.

Stephan

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