On Tue, 2003-02-11 at 05:27, Jay 'Whip' Grizzard wrote:
> On Fri, Feb 07, 2003 at 12:54:59PM -0500, Sam Tregar wrote:
> > On Fri, 7 Feb 2003, Drew Taylor wrote:
> >
> > > Is there a way to trim the extra whitespace\newlines from the final output?
> > > I didn't notice anything in the docs so I thought I'd ask here.
> >
> > HTML::Clean works for some people. In general I don't let it bother me.
> > It's just a few extra bytes and the browser certainly doesn't care.
>
> Problem is, sometimes the browser -does- care. There's not a difference
> between "one character of whitespace" and "many characters of whitespace", but
> there is a difference between those and "zero characters of whitespace".
Agree. Also, HTML::Template is i think used in quite a wide range of
applications - and its not uncommon (at least at my workplace) to
encounter this templating mechanism to produce output for other
applications (eg, XML, CSV, TXT, ...) and sometimes those applications
do care about the number of whitespaces.
>
>
> Me personally, I use an HTML::Template::Extension module to do it. Heck,
> said module even appears to be appended to this email. Usage: use PACKTAGS
> as an extension, and close some of your tags with " #>" (note the space)
> instead of >. Any tags closed that way will cut off output until the next
> tag in the template. (This could be trivially adjusted to just remove
> whitespace, as well .. adjust _pack_tags in the obvious way).
>
> Incidentally, this script solves one of the two complaints I've had about
> HTML::Template. The other complaint? There isn't a way to incrementally
> render loops, since you have to give it the entire contents of the loop at
> once. It seems silly to hold several thousand iterations of data in memory,
> when one could just output an iteration at a time...
>
> Anyhoo. Enjoy.
>
> -jay
>
> ----- CUT HERE -----
>
>
> package HTML::Template::Extension::PACKTAGS;
>
> $VERSION = "0.01";
> sub Version { $VERSION; }
>
> use Carp;
> use strict;
>
> my $classname;
> my $parentname;
>
>
> my %fields =
> (
> ecp_compatibility_mode => 0,
> );
>
>
> my @fields_req = qw//;
>
>
> sub new
> {
> $classname = shift;
> my $self = shift;
> $parentname = ref($self);
> bless $self,$classname;
>
> $self->_init_local(@_);
> return $self;
> }
>
>
> sub _init_local {
> my $self = shift;
> my (%options) = @_;
>
> # Assign default options
> while (my ($key,$value) = each(%fields)) {
> $self->{$key} = $self->{$key} || $value;
> }
>
> # Assign options
> while (my ($key,$value) = each(%options)) {
> $self->{$key} = $value
> }
>
> # Check required params
> foreach (@fields_req) {
> croak "You must declare '$_' in " . ref($self) . "::new"
> if (!defined $self->{$_});
> }
>
> $self->push_filter();
> }
>
>
> sub push_filter {
> my $self = shift;
> bless($self, $classname);
>
> push(@{$self->{filter}}, @{$self->_get_filter()});
> bless($self, $parentname);
> }
>
>
> sub _get_filter {
> my $self = shift;
> my @ret ;
>
> # Sorry for this :->. I've an e-commerce project called ecp that
> # use a CSTART modified syntax using html comment
> push @ret,\&_pack_tags if ($self->{ecp_compatibility_mode});
>
> # Standard CSTART syntax
> push @ret,\&_pack_tags;
>
> return \@ret;
> }
>
>
> sub _pack_tags {
> my $template = shift;
>
> # $template = $$template;
> # print STDERR $template;
>
> $$template =~ s/\s+#>[^<]*</></g;
>
> return $template;
> }
>
> 1;
>
>
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