| Subject: | Over-zealous interpolation |
Sometimes I want a template to contain 2 copies of a loop, i.e. where
the tmpl_loop name is the same in 2 separate loops.
However, in one loop I want to use a different number of tmpl_var's than
in the other loop.
An example will be clearer:
#!/usr/bin/perl
use strict;
use warnings;
use HTML::Template;
# -----------------
my($template) = HTML::Template -> new(filename => 'x.tmpl');
$template -> param(loop => [{a => 'A', b => 'B'}]);
print $template -> output();
First:
<tmpl_loop name=loop>'a' is <tmpl_var name=a> and 'b' is <tmpl_var
name=b>.</tmpl_loop>
Second:
<tmpl_loop name=loop>'a' is <tmpl_var name=a>.</tmpl_loop>
Notice how the 2nd loop does /not/ refer to tmpl_var b?
This dies with:
HTML::Template->output() : fatal error in loop output : HTML::Template :
Attempt to set nonexistent parameter 'b' - this parameter name doesn't
match any declarations in the template file : (die_on_bad_params => 1)
at /usr/local/share/perl/5.8.8/HTML/Template.pm line 3068
There are 2 problems here:
(1) The error says I'm trying to set 'b', but I'm not. The exact
opposite it true: I'm /not/ setting 'b'. This error message is extremely
confusing and frustrating.
(2) I'd like the code to do as I intend :-).