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Re^5: Perl oddities

by hardburn (Abbot)
on Mar 01, 2005 at 16:18 UTC ( #435506=note: print w/ replies, xml ) Need Help??


in reply to Re^4: Perl oddities
in thread Perl oddities

Quoting is not an identity function in Perl.

"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.


Comment on Re^5: Perl oddities
Re^6: Perl oddities
by Anonymous Monk on Mar 01, 2005 at 16:49 UTC
    Quoting is not an identity function in Perl.

    It's not, but if you're going to use them as hash keys, they get quoted anyway:

    perl -MDevel::Peek -e '$a = 1; Dump ($a); %a = map +{$_}, $a; Dump ($a +)' SV = IV(0x8192edc) at 0x8191dc4 REFCNT = 1 FLAGS = (IOK,pIOK) IV = 1 SV = PVIV(0x8184888) at 0x8191dc4 REFCNT = 1 FLAGS = (IOK,POK,pIOK,pPOK) IV = 1 PV = 0x818b5b8 "1"\0 CUR = 1 LEN = 2

    perl -MDevel::Peek -e '$a = 1; Dump ($a); %a = map {"$_",}, $a; Dump ( +$a)' SV = IV(0x8192edc) at 0x8191dc4 REFCNT = 1 FLAGS = (IOK,pIOK) IV = 1 SV = PVIV(0x8184888) at 0x8191dc4 REFCNT = 1 FLAGS = (IOK,POK,pIOK,pPOK) IV = 1 PV = 0x818b5b8 "1"\0 CUR = 1 LEN = 2
    No difference.

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