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Postings from March 2002
On Mar 28, Bryan R Harris said: >- Why is the \1, \2, etc. syntax obsolete? The one thing I love about >regular expressions is that I can use them within text editors (nedit, >textpad, bbedit), but none of these support the $1 notation in the replace >string. Why aren't re's consistent between perl and text editors? \1 and \2 are to be used on the LEFT-HAND side of a regex; on the RIGHT-HAND side, you should use $1 and $2 to remove any ambiguity, because \1 can ALSO mean chr(1). >- What does the "qr" tag do? qr// makes a Regexp object that is a compiled regular expression. -- Jeff "japhy" Pinyan japhy@pobox.com 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. ]Thread Previous | Thread Next