Thank you for your input, but I'll try to avoid modifying the regexes because they are user input, and I don't want to deparse them.

And I don't only want to detect end-of-string between \d+ and 'b', but also between 'a' and \d+ - which means that I'd had to add a closure between any two atoms in the regex - that's not a feasible option :(

In reply to Re^2: Did regex match fail because of "end of string"? by moritz
in thread Did regex match fail because of "end of string"? by moritz

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