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global to cut short variable

Sep 9, 2003, 11:21 AM
kzap
Novice (47 posts)
Sep 9, 2003, 11:21 AM
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global to cut short variable
i need a global that will cut short any variable up to a certain amount of characters like

<%left($description,50)%>

would give me: "my desript..."

i just have no idea about how to go about doing it
Sep 9, 2003, 4:23 PM
afinlr
Veteran (1921 posts)
Sep 9, 2003, 4:23 PM
Post #2 of 7
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Re: [kzap] global to cut short variable In reply to
Something like this:

sub {
my $field = shift;
my $length=shift;
return substr($field, 0, $length) . '...';

}
Sep 9, 2003, 9:33 PM
kzap
Novice (47 posts)
Sep 9, 2003, 9:33 PM
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Re: [afinlr] global to cut short variable In reply to
Thanks =)
Sep 10, 2003, 12:39 AM
Andy
Veteran / Moderator (18436 posts)
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Sep 10, 2003, 12:39 AM
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Re: [kzap] global to cut short variable In reply to
Or, if you don't really want the words to get cut off midway;

Code:
sub {
my $field = $_[0];
my $limit = $_[1];
my @sliced = split(" ",$field);

my ($count,$back);
foreach(@sliced) {
if ($count < $limit) {
$back .= $_ . " ";
} else {
$back .= "...";
if ($count == $limit) { last; }
}
$count++;
}

return $back;

}

<%global_name($Description,NumberOfWords)%>

Its a bit more long winded.. but it should do what you want.

Cheers

Andy (mod)
andy@ultranerds.co.uk
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Sep 11, 2003, 11:18 AM
kzap
Novice (47 posts)
Sep 11, 2003, 11:18 AM
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Re: [Andy] global to cut short variable In reply to
hmm cool but how about a combination of both

lets say it counts the number of words for every loop it keeps checking the number of characters in $back and once its greater than the specified value $limit, it goes back one word and adds "..." ?
Sep 11, 2003, 11:22 AM
Andy
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Sep 11, 2003, 11:22 AM
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Re: [kzap] global to cut short variable In reply to
No idea I'm afraid. Don't have much free time at the moment, otherwise I would have a play.

Cheers

Andy (mod)
andy@ultranerds.co.uk
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Sep 11, 2003, 3:23 PM
afinlr
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Sep 11, 2003, 3:23 PM
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Re: [kzap] global to cut short variable In reply to
Something like this I think. If it ends in a space it should just cut off the space but if it is a space and then letters it will assume this is an incomplete word and cut this off as well.

sub {
my $field = shift;
my $length=shift;
my $short = substr($field, 0, $length) ; $short =~ s/\s\S*$//; $short .= '...';

return $short;

}