Besides actually getting it compiled and getting support for it, think of the strings. The regular expression engine in 5.8 does a lot of recursion in situations where later versions iterate when possible. Unicode support has changed a lot. Regular expressions are now first-class entities (since 5.12.0 I believe).

In reply to Re: Best min. version of perl for use with C embedding? by mr_mischief
in thread Best min. version of perl for use with C embedding? by falinf

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