On Mar 30, 8:13 am, [EMAIL PROTECTED] (Chas. Owens) wrote:
> On Sat, Mar 29, 2008 at 9:14 PM, Trudge <[EMAIL PROTECTED]> wrote:
>
> > On Mar 29, 4:05 pm, [EMAIL PROTECTED] (Gunnar Hjalmarsson) wrote:
> > > Trudge wrote:
> > > > I'm trying to get a script to interpolate variable values in a
> > > > __DATA__ block if possible. This is a kind of alternative to a full-
> > > > blown template method. I'm not sure if I can even do what I want,
> > > > hence my posting here.
>
> > > It can be done; see the FAQ entry
>
> > > perldoc -q "expand variables"
>
> > > <snip>
>
> > > > while (<DATA>)
> > > > {
> > > > chomp;
> > > > if ($_ eq "<$data>")
> > > > {
> > > > next;
> > > > print "$_\n";
> > > > }
> > > > if ($_ eq "</$data>")
> > > > {
> > > > last;
> > > > }
> > > > print "$_\n";
> > > > }
>
> > > Try to replace that with:
>
> > > while (<DATA>) {
> > > chomp;
> > > next if $_ eq "<$data>";
> > > last if $_ eq "</$data>";
> > > s/(\$\$\w+)/$1/eeg;
> > > print "$_\n";
> > > }
>
> > > --
> > > Gunnar Hjalmarsson
> > > Email:http://www.gunnar.cc/cgi-bin/contact.pl
>
> > Gunnar, this works perfectly, and is what I am trying to achieve. Many
> > thanks, and a brew on me :)
>
> > For the curious, I find myself sometimes having to display similar
> > blocks of text over and over, with only minor changes. It could be
> > HTML or XML. As far as I know, templates require separate files to
> > work with. To avoid a lot of separate files, I've been using 'here'
> > documents up until now, all contained in one large script. But I
> > wondered if I could achieve a similar
> > effect putting the blocks of text in a __DATA__ block. Now I know it
> > can be done, so I will be exploring this method.
>
> > Thanks to all who responded.
>
> snip
>
> If you have multiple templates you might want to use Inline::Files*
> instead of a straight DATA block. This module lets you have multiple
> DATA-like blocks:
>
> #!/usr/bin/perl
>
> use strict;
> use warnings;
> use Inline::Files;
>
> print while <BAR>;
> print while <BAZ>;
> print while <FOO>;
>
> __FOO__
> This is foo
> This is still foo
> __BAR__
> This is bar
> This is still bar
> __BAZ__
> This is baz
> This is still baz
>
> *http://search.cpan.org/dist/Inline-Files/lib/Inline/Files.pm
> --
> Chas. Owens
> wonkden.net
> The most important skill a programmer can have is the ability to read.
Chas. I've installed this and gave it a quick whirl. While it does
print OK from various blocks, I couldn't get it to do what I really
need, namely to interpolate variables in those blocks. For example,
this snippet didn't print the variables.
#!/usr/bin/perl
use strict;
use warnings;
use Inline::Files;
print while <FOO>;
print while <BAR>;
print while <BAZ>;
my $foo="FOO";
my $bar="BAR";
my $baz="BAZ";
__FOO__
This is $foo
This is still $foo
__BAR__
This is $bar
This is still $bar
__BAZ__
This is $baz
This is still $baz
Neither did using a reference to all 3 variables.
--
Amer Neely - www.webmechanic.softouch.on.ca
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