Re^2: Is there a way to allow consecutive zero-length matches without using pos()?

[ambrus]

For an example, please see my old node The story of a strange line of code: pos($_) = pos($_); where I deliberately want to do that. It happens because to make the code more readable, I'm not matching one big regex with a lot of alternation, but multiple regexes one after another, and more than one of those can match the empty string at the same position.

[hippo]

Thanks for the context. Does rubasov's solution not answer this question? In what way does it fail to meet your criteria?

[ambrus]

That solution rewrites the multiple regular expressions to a single big regular expression. That works, but I didn't need it. I never had jsm's performance problem (presumably because I didn't use those perl versions for that very old code), so assigning pos worked just fine for me.