I needed to generate random strings from a regular expression and I have found (*) a C++ library (regxstring C++ library by daidodo) which does just that and works fine for my use case. It claims that it supports most Perl 5 regexp syntax. It is quite fast too. So I have ported it into a Perl module, here : String::Random::Regexp::regxstring.

perl -MString::Random::Regexp::regxstring -e 'print @{generate_random_
+strings(q{^\d{3}[-,.][A-V][a-z]{3}\d{2}})};'

[download]
use String::Random::Regexp::regxstring;
my $strings = generate_random_strings('^[a-c]{2}[-,.]\d{3}-[A-Z]{2}$',
+ 10);
print "@$strings\n"

[download]

The XS and C++ code bridging Perl to C++ library are very simple and can serve as an example for doing that for other libraries. Go forth and multiply.

(*) Via this old thread I found Regexp::Genex and there is also String::Random. Neither worked for my use case.

bw, bliako

In reply to Generate random strings from regular expression by bliako

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