"Owen" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On Wed, 28 Apr 2004 10:42:01 +0530 > "Sumanth Sharma" <[EMAIL PROTECTED]> wrote: > > > Can you help me figure out why need tr/// when you have s/// and > > Vice versa ( NO, s/// is more powerful?). > > Well I would say that the way they operate is different. > > tr/// looks at each character and replaces it > > eg, tr/aeiou/-/ replaces all vowels with a - > > s/// looks for a pattern and replaces that pattern > > eg s/aeiou/-/ replace any pattern of aeiou with a - > > Try this > > #!/usr/bin/perl -w > use strict; > > my $word='aeiou'; > $word =~tr/aeiou/-/; > print "translated word is $word\n"; > > $word='aeiou'; ##> $word =~s/aeiou/-/; but ..... $word =~ s/[aeiou]/-/g; ## will achieve the same thing.
Anyway, is it true that "tr/aeiou/-/" is faster than "s/[aeiou]/-/g" ?. Thanks in Advance, Sumanth Sharma -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
