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How can i compare strings using non-case-sensitive comparisions?

by Anonymous Monk
on Jan 16, 2001 at 01:42 UTC ( #52070=categorized question: print w/replies, xml ) Need Help??
Contributed by Anonymous Monk on Jan 16, 2001 at 01:42 UTC
Q&A  > strings


Description:

I am using
if($y eq $z){ whatever }
will it execute "whatever" if $y="Bob" and $x="bob" ? If not, how would i get it to execute it? Oh this is Ozyark btw...

Answer: How can i compare strings using non-case-sensitive comparisions?
contributed by myocom

Force the case. if (lc($y) eq lc($x)) { stuff }

Answer: How can i compare strings using non-case-sensitive comparisions?
contributed by Rudif

Use case-insensitive match

if ($x =~ /^$y$/i) { #whatever }
In my benchmark the two methods take substantially the same time.
Rudif

#! perl -w use strict; use Benchmark; my $x='The Monastery Gates'; my $y='http://www.perlmonks.org/'; timethese(1000000,{eq=>sub{ if (lc $x eq lc $y) {} }, re=>sub{ if ($x +=~ /^$y$/i) {} }}) __END__ Benchmark: timing 1000000 iterations of a, b... eq: 1 wallclock secs ( 1.12 usr + 0.00 sys = 1.12 CPU) @ 8 +91265.60/s (n=1000000) re: 2 wallclock secs ( 1.06 usr + 0.00 sys = 1.06 CPU) @ 9 +79431.93/s (n=1000000)

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