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Postings from July 2022
On Mon, Jul 25, 2022 at 05:31:30PM +0000, Konovalov, Vadim via perl5-porters wrote: > From: Philippe Bruhat (BooK) <book@cpan.org> > > > However, these variables prefixed with 0 sound very fragile and confusing to me. > > > > (The following examples were run under perl 5.32.1.) > > > > $ perl -E '$0999 > > = 999; say $0999' > > Numeric variables with more than one digit may not start > > with '0' at -e line 1. > > > All your examples are about $999, which is a special variable for regexps. > Neither $00 nor $0 has any relation to regexp, so behaviour is predictably different. The fact that neither $00 nor $0 has any relation to regular expressions is irrelevant, because ALL identifiers that start with digits are reserved in Perl. $0, for instance, is the name of the program being executed. > Not a big deal, actually. > > I accept the point that my usage of perl is often non-common, with lots of non-standard approaches, so no-one else uses $00, so dropping $00 support is ok. It seems to me the fact that you were ever able to use $00 was a bug in those versions of Perl which has now been fixed.Thread Previous | Thread Next