An excerpt from the documentation:
"
my $tag = ''; # option variable with default value
GetOptions ('tag=s' => \$tag);
In the option specification, the option name is followed by an equals
sign "=" and the letter "s". The equals sign indicates that this
option
requires a value. The letter "s" indicates that this value is an
arbitrary string. Other possible value types are "i" for integer
values..."
-----Original Message-----
From: Chris Knipe [mailto:[EMAIL PROTECTED]
Sent: Monday, November 07, 2005 7:38 PM
To: beginners@perl.org
Subject: Getopt::Long
Hi all,
Just a quick question and a couple of lines of really simple code....
use Getopt::Long;
...
GetOptions ('h' => \$h,
'b=s' => \$s );
Sub ShowHelp() {
print "this is help"
}
Sub DoSomethingWithString() {
...
}
If ($s) {
DoSomethingWithString();
} else {
ShowHelp();
}
Right. Now, whilst the above is not perhaps 100% correct, it goes about
a
generality of Getopt::Long.
If I now run the application,
./blah.pl -h - I get the help screen
./blah.pl -s - I get a error, complaining that -s requires a value,
and
THEN the help screen.
./blah.pl -s s - Everything is fine.
So, this is more of a block question I think, but how I can get the
above
example to show the help screen FIRST, and THEN complain about the
missing
value for -s ????
Thanks,
--
Regards,
Chris.
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