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Re: Information on Perl Internals for a lost pilgrim...

by tlm (Prior)
on Jun 17, 2005 at 23:53 UTC ( #467908=note: print w/replies, xml ) Need Help??


in reply to Information on Perl Internals for a lost pilgrim...

There is perlguts, perlapi, perlxs, and illguts, for starters. There's also this, but I am less familiar with it.

Though it's not online (AFAIK), I found Extending and Embedding Perl easier to follow than any of the above.

the lowliest monk

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[Eily]: there was a post some time ago about variable coming from regex taking more space than the same string defined directly IIRC
[Eily]: and if there's XS, make sure the scalar holds a string representation, that sounds like bad practice though (forcing that on the call side)
[choroba]: You should never pass $1 without double quotes to a sub
[choroba]: or "I should never", at least
[choroba]: that's not the sub's business
[Eily]: choroba but does $name = $1 solve the issue ?
[Eily]: if so, most subs start with my (VARIABLES) = @_ anyway
[moritz]: for short subs, I sometimes let them work on $_[0] directly

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