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Re: regex: only want [a-zA-Z] and comma chars in a string

by jeroenes (Priest)
on Oct 12, 2003 at 17:36 UTC ( #298676=note: print w/replies, xml ) Need Help??

in reply to regex: only want [a-zA-Z] and comma chars in a string

Hi heezey,

Why not try without regex?

print "yes" if not tr/a-zA-Z,//c and not ( str( $_, ',', 0) or str $_, + ',' ,-1);
Did not check it but should work.


Jeroen "We are not alone"(FZ)

After some self-flaggalation:

for (qw/ ,asd asd:asd asd, asd,asd asd,,asd/){ my $test = $_; print "$test: "; print "yes" unless $test=~tr/a-zA-Z,//c or index( $test, ',') == 0 or + index( $test, ',') == -1 + length( $test) or index( $test, ',,') > 0 +; print "\n"; }

My perl clearly is rusty, and I even don't know anymore in which language str is valid ;).

However, still possible without regexes {grin}.

Replies are listed 'Best First'.
Re: Re: regex: only want [a-zA-Z] and comma chars in a string
by Anonymous Monk on Oct 12, 2003 at 17:42 UTC
    bzzt! Why post guesses when 10 seconds would have allowed you to check? The strings are not allowed to have consecutive commas, and str($_,',',0) isn't even a valid Perl function.

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[1nickt]: \my %foo = { bar => 1 }; say $foo{bar};
[Corion]: 1nickt: Would be great, especially for naming parameters in @_.
[Corion]: When you pass an arrayref, you get to treat it like a local array. But then, I'm cautious with the experimental features, because just when I thought function signatures were a set thing, there is a proposal to use sub [ $foo, $bar ] { ... } to ...
[Corion]: ... declare the parameters, instead of the more common sub ($foo, $bar) { ... }

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