On Sep 6, Harry Putnam said:
>IMPORTANT: I don't want techniques involving call back (remembered)
>operators and parens, I know how to piece those together for simple
>things like the file below.
Is there a reason for that limitation? Oh well. Anyway, here's a good
approach:
while (<INPUT>) {
print substr($_, $-[0], $+[0] - $-[0]), "\n" if /pattern/;
}
For information about what the @- and @+ arrays represent, read 'perlvar'.
This is more or less the same as
while (<INPUT>) {
print "$&\n" if /pattern/;
}
except it's not as evil. (To find out why $& is evil, read 'perlvar'.)
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for? <tenderpuss> why, yansliterate of course.
[ I'm looking for programming work. If you like my work, let me know. ]
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