[bug] Cannot generate examples for /__.__/ about regexp-examples HOT 6 CLOSED

Interesting use case, thanks for the report.

As I said above, I think the laziest solution will be to simply make the placeholder pattern much more obscure - so it's virtually impossible to re-encounter this bug unless you intentionally go looking for it 😅

I'll fix this in a new release soon, when I get time. Should be very straightforward.

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"Fixed" in version 1.5.0 😃

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I wonder, did you encounter this in a real world scenario or because you were intentionally looking for a bug? 😉

This is caused by the "hacky" implementation of generating matches for regexes with back-references. Due to this code, I effectively say "any instance of __xx__ in the string is a placeholder, not a real part of the result".

Possible quick "fix": Make the placeholder longer/more obscure. It could be 100 "random" characters long, for all I care!

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Hi @tom-lord ,
Thanks for your comment and creating very useful Gem 😄

I wonder, did you encounter thi

I'm using your gem as random string generator for RSpec examples.
When I tried to generate a hidden method name like __a__ by using /__\w__/ regexp then I got this problem.

I have workaround for this bug; generate random string by using /\w/ regexp and then add __ to head and tail of generated string. Therefore I have no problem due to this bug.
https://github.com/rggen/rggen-basic-output-components/blob/aba7e720e89146c4223438ecfeb38a46ebd076b1/spec/rggen/basic_output_components/systemverilog_utility/identifier_spec.rb#L126

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As I said, I have a workaround for this bug. Therefore this is not a priority issue and you don't need to hurry.

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Thank you!

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