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

Hi, I'm trying to get this working:
my ($img) = $IN->param($field) =~ m|([^\\/]+)$|; # grab the i +mage name...and then assign the path... use Data::Dumper; print "IMAGE BEFORE: " . Dumper($img); $img =~ tr{ÀÂÄàâäÇçÉÊÈËéêèëÏÌÎïìîÖÔÒöôòÜÛÙüûùA-Z?!;«»()" }{aa +aaaacceeeeeeeeiiiiiioooooouuuuuua-z__________}; print "IMAGE AFTER: " . Dumper($img); print $IN->header; print qq|XXX: $img,$table,$field,$id <Br />|;


..but it prints out:

00001Ëéêè_ÏÌÎï_whatever.jpg

....however, if I hard-code the $img with:

my $img = '00001ËéêèëÏÌÎï whatever.gif';

..it works fine, and returns:

00001eeeeeiiii_whatever.gif

Can anyone see why its not working for me? Been trying to figure it out for going on 2 hours now, and I'm stumped :(

Also, if I output it to STDERR - I see this in my log file:

00001ÃéêèëÃÃÃï whatever.jpg

Maybe its being converted for some reason, somehow?

TIA

Andy

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Re: tr not working
by Anonymous Monk on Jul 07, 2009 at 11:22 UTC
      Hi,

      $IN->param is a GT::CGI (basically CGI.pm)

      I also tried using

      use utf8;

      ..and:

      use Encode qw(encode decode);

      ..but that converts it into even weirder text:

      IMAGE BEFORE: $VAR1 = '00001ËéêèëÏÌÎï whatever.jpg';
      IMAGE AFTER: $VAR1 = "00001\x{cb}\x{e9}\x{ea}\x{e8}\x{eb}\x{cf}\x{cc}\x{ce}\x{ef}_whatever.jpg";

      Any other ideas?

      BTW, as I said before - in the same script - it works fine for other functions - just not this one.

      Here is the full function, if it may help:

      sub MakeThumb { # print $IN->header; # print "FOO"; my ($id,$field,$table,$size,$key_field) = @_; if (!$id || !$field || !$table || !$size) { use Data::Dumper; return qq|ERROR: Please pass in ALL values (ID, field, table a +nd size) - got "$id","$field","$table","$size"| . Dumper(@_); } ## NEW STUFF # fix the image, so we convert things like accented charachters to + plain charachters # rename_file_with_odd_charachters(filename,table,field,id) my ($img) = $IN->param($field) =~ m|([^\\/]+)$|; # grab the i +mage name...and then assign the path... use Data::Dumper; print "IMAGE BEFORE: " . Dumper($img); # my $img = '00001ËéêèëÏÌÎï whatever.gif'; print STDERR "\n\n$img\n\n"; # $img = decode("utf-8",$img); $img =~ tr{ÀÂÄàâäÇçÉÊÈËéêèëÏÌÎïìîÖÔÒöôòÜÛÙüûùA-Z?!;«»()" }{aa +aaaacceeeeeeeeiiiiiioooooouuuuuua-z__________}; print "IMAGE AFTER: " . Dumper($img); print $IN->header; print qq|XXX: $img,$table,$field,$id <Br />|; rename_file_with_odd_charachters_other($img,$table,$field,$id +); ## END NEW STUFF # get the actual path to where the file is/will be saved... my $schema = $DB->table($table)->cols; my $path = $schema->{$field}->{'file_save_in'}; $path =~ s,/$,,; # get rid of trailing / at end of $path # now we have the highest ID, lets get the image stuff for thi +s link. my $col = $field; # column name where file is held my $tbl = $DB->table( $table ); my $fh = $tbl->file_info( $col, $id ); # return a glob refere +nce to the file that you can print <$fh> if you want my $rel_path; if ($fh) { $rel_path = $fh->File_RelativePath; } # else { # return @args; } undef $fh; # explicit close of the filehandle for good measur +e # create the variable for where the small image will be held... my @img_create = split("/",$rel_path); my $count = $#img_create; my $rel_path_small = undef; # make sure we have this variable + as an undef, otherwise we get probs... for (my $i = 0; $i < $count; $i++) { $rel_path_small .= $img_ +create[$i] . "/"; } $rel_path_small .= "small-" . $img_create[$count]; # create t +he small image name... my $ReadImage = $path . $rel_path; my $WriteImage = $path . $rel_path_small; do_shrink($ReadImage,$WriteImage,$id,$size); return; }


      The stuff between

      ## NEW STUFF

      and

      ## END NEW STUFF

      ..is where the issue is coming up.

      TIA

      Andy
        Perfect, got it working now - with:

        $file = decode("utf-8",$file);

        Still a little confused as to why it was working with the exact same file, in other parts of the script, but not this one - but at least its going now.

        Thanks guys :)

        Cheers

        Andy
Re: tr not working
by moritz (Cardinal) on Jul 07, 2009 at 11:37 UTC
    It might very well be an issue with a wrong character encoding. If $img is a decoded string, you also have to use utf8; to make perl also decode your tr/// code.