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simple string comparing

Hello
How can i check if $mystring is exactly equal to "."
Where "." means one character (comma) ?
Thanx
Michal

Jul 19 '05 #1
2 6085
vertigo wrote:
How can i check if $mystring is exactly equal to "."
Where "." means one character (comma) ?


Did you check "perldoc perlop", section "Equality Operators"?

jue
Jul 19 '05 #2
In article <c6**********@n emesis.news.tpi .pl>, vertigo
<no**@microsoft .com> wrote:
Hello
How can i check if $mystring is exactly equal to "."
Where "." means one character (comma) ?

If you only want a comma, use

if( $mystring eq ',' ) {
# do something if it's a comma
}

If you want any one-character string:

if( $mystring =~ m/^.$/ ) {
# do something if it's one character
}

or even better

if( length($mystrin g) == 1 ) {
# it's one character
}

Note the different comparison operators:

eq for string compare
=~ for pattern match
== for numerical compare

Thanx
Michal


This newsgroup is defunct. Try comp.lang.perl. misc in the future.
Jul 19 '05 #3

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