On Oct 24, Kingsbury, Michael said:
>compiling xyz
>"a: warning"
>"b: warning"
>compiling more stuff.
>"a: warning"
>
>I want to get one instance of each warning & output it to a file. I can do
>that by backticking it through sort, and loading lines that start with a " &
>don't match the previous entry, and then writing that array to a file.
>This seems cumbersome.
Right. Use a hash.
while (<OUTPUT>) {
next unless /^"/;
$error{$_} = 1;
}
>Part 2. Given the above, I want to compare an older list of warnings, and
>capture only new ones... Without loading them into arrays & doing
>foreaches on the array to compare, I can't think of how to do this.
Use another hash. Let's call it %olderror.
delete @error{ keys @olderror };
Now the only keys in %error are ones that didn't appear in %olderror.
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
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