lukdk
Novice
Aug 27, 2012, 5:19 AM
Post #1 of 5
(634 views)
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regular expression, white spaces
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Can't Post
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Hello,
I'm trying to remove the white spaces in front and after a variable. The variable comes from a file which needs to be read. The following code seems to work at first:
sub trim{
my $str=shift;
return "" if !defined $str;
$str=~s/^\s+//;
$str=~s/\s+$//;
return ($str);
}
However, when I try this code, it doesn't remove anything. I tried to open the input file in a text editor and saw white spaces in front and after the string. When I tried in a dos box "type input.txt" I noticed all the white spaces got replaced by "á" signs.
I'm guessing I'll need to use another expression, the problem is I don't know what to match for. How can I discover that hidden character that seems like a white space, but isn't one after all?
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