Re: Re: Re: Re: A regex that does this, but not that?

Your character class of [^t] can itself cross word boundaries so that strings like: "this will be a problem right?" will be a problem, right?

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Re: Re: Re: Re: Re: A regex that does this, but not that? by Cody Pendant (Prior) on Nov 15, 2003 at 07:32 UTC
Quite right, very true, didn't think of that. What if we add a not-whitespace-either to the character class? `#!/usr/bin/perl -w use strict; my $words='test Buffy testament Anya tot Willow tesseract Faith tent this is a problem right?'; $words =~ s/\b(t[^t\s]+t)\b/$1 eq "test" ? $1 : ''/ge; print $words;` [download] `($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss') =~y~b-v~a-z~s; print` [download]	[reply] [d/l] [select]

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Re: Re: Re: Re: Re: A regex that does this, but not that?
by Cody Pendant (Prior) on Nov 15, 2003 at 07:32 UTC

What if we add a not-whitespace-either to the character class?

#!/usr/bin/perl -w
use strict;

my $words='test Buffy testament Anya tot Willow tesseract
 Faith tent this is a problem right?';
$words =~ s/\b(t[^t\s]+t)\b/$1 eq "test" ? $1  : ''/ge; 
print $words;
[download]

($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss')
 =~y~b-v~a-z~s;                             print
[download]

[reply]
[d/l]
[select]