mruby Regexp check with onig

[zzak]

Some method in mruby, like String#slice should be able to use OnigRegexp. For example,

# in MRI
>> "123hello456".slice(/[a-z]+/) #=> "hello"

# in mruby
> "123hello456".slice(/[a-z]+/)
(mirb):1: Regexp class not implemented (NotImplementedError)

> "123hello456".slice(OnigRegexp.new("/[a-z]+/"))
(mirb):2: Regexp class not implemented (NotImplementedError)

It seems they are using mrb_regexp_check.

Any ideas?

[mattn]

I'm not sure but Regexp is defined at https://github.com/mattn/mruby-onig-regexp/blob/master/mrblib/onig_regexp.rb#L55

[mattn]

Unfortunately, mruby still not ready to use Regexp.

See https://github.com/mruby/mruby/blob/master/src/string.c#L1761

[zzak]

@mattn Thanks for your patch!

I'd like to find a way to resolve this, re: mruby/mruby#2881, and avoid duplication.