how to chop last character from a string

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: how to chop last character from a string by ikegami (Patriarch) on Jan 03, 2006 at 19:44 UTC
Why does $ARGV[0] contains a newline? `chop` will remove the last character, no matter what it is. The following should be more reliable than `chop`: `my $arg = $ARGV[0]; $arg =~ s/\$//; # Remove trailing '', if any.` [download] If there really is a newline, add `chomp($arg)` between those two lines. Of course, you probably you could forget about removing the '*' and use File::Glob or File::DosGlob to interpret the argument (if you're trying to list the files matching the spec).	[reply] [d/l] [select]
Re^2: how to chop last character from a string by suaveant (Parson) on Jan 03, 2006 at 21:31 UTC
Why add a chomp, if you are already regexping just give it a `$arg =~ s/\*\n?$//;` [download] if you actually want to get rid of trailing newlines.... maybe add a \r? for completeness' sake - Ant - Some of my best work - (1 2 3)	[reply] [d/l]
Re: how to chop last character from a string by choedebeck (Beadle) on Jan 03, 2006 at 19:44 UTC
well, if chop removed a \n then the last character of that string was \n. Why can't you just chop again? If that doesn't appeal to you you could do something like `$ARGV[0] =~ s/\.$//;` [download] That should do it too.	[reply] [d/l]
Re^2: how to chop last character from a string by suaveant (Parson) on Jan 03, 2006 at 21:28 UTC
That will do a lot more than remove a trailing , if there is ever anything else after the ... - Ant - Some of my best work - (1 2 3)	[reply]
Re^2: how to chop last character from a string by bioMan (Beadle) on Jan 04, 2006 at 15:26 UTC
Rather than chopping twice a safer way would be to chomp first then chop. But, I like the regex solutions better than chopping Mike	[reply]
Re: how to chop last character from a string by suaveant (Parson) on Jan 03, 2006 at 21:26 UTC
Of course, if you wanted to be lazy you could do a chomp then a chop, since chomp only grabs whitespace you will take off a \n if it is there but not break if it isn't... it is very strange that you have a \n in the argument, though. - Ant - Some of my best work - (1 2 3)	[reply]