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Re: Re: Show count before data output

by Anonymous Monk
on Jun 23, 2003 at 19:30 UTC ( [id://268293]=note: print w/replies, xml ) Need Help??


in reply to Re: Show count before data output
in thread Show count before data output

Thanks, I tried as you suggested and got this message:
Use of uninitialized value at fet7a.pl line 28. Total Count =
Here is what I have:
use File::Find; sub fetcher { my($ct, @data) = (0,()); if( $_ =~ /\.html?$/) { my $name = $File::Find::name; open ( F, $name ) or die "$!: $name\n"; while( $line = <F> ) { for $i ($line =~ /stuff/gi ) { push(@data, "$i\n"); # gather the lines $ct++; } } # since there is no requirement the lines need to match # why not local $/ = undef; @data = <F>; close F; } return($ct,\@data); } my ($ct, $data) = find( \&fetcher, "/directoryHere" ); print @$data; print "\n\nTotal Count = $ct\n\n";

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Re: Re: Re: Show count before data output
by Tomte (Priest) on Jun 23, 2003 at 19:53 UTC

    I should read posts more carefuly before answering, your use of File::Find was totaly unnoticed by me. You can't pass return values through the call of find, use a global variable instead, as you originaly did. Here a slightly modified version, that searches use lines in .pl files.

    use File::Find; my($ct, @data) = (0,()); sub fetcher { if( $_ =~ /\.pl?$/) { my $name = $File::Find::name; open ( F, $name ) or die "$!: $name\n"; my @lines = <F>; close(F); my @matches = grep(/^use/, @lines); push(@data, @matches); $ct += scalar(@matches); } } find( {wanted => \&fetcher, no_chdir => 1, }, "." ); print "\n\nTotal Count = $ct\n\n"; print @data; __END__ Total Count = 8 use strict; use WWW::Search::Tv::German::Tvtoday 1.02; use File::Find; use File::Basename; use HTML::TokeParser; use LWP::Simple; use LWP::Simple; use Net::POP3;
    Notice that I slurp the file and use grep to find the matches, I think it looks more like perl this way.

    And by the way: I would realy like to know, for what purpose you wrote this code, as it seems to me, if you had posted that, someone could come up with a more proper solution, just a humble guess...

    Oh, and as a further note: proper, read: consistent, indenting of code is most welcome here ;-)

    regards,
    tomte


    Hlade's Law:

    If you have a difficult task, give it to a lazy person --
    they will find an easier way to do it.

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