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The problem introduced by Tal, Seamstress, this new "Empty", and sometimes even HTML::Template with its "LOOP" construct - is that the Perl code has to know too much about the template.

In TAL, Perl builds the data and TAL renders it. Quite like TT but just with less generality built into the template language (generality that often just gets you into trouble). If you need to transform data for display (eg reorient a table, turning rows into columns and vice versa), the template can actually call out to perl helpers. This continues the separation of coding and presentation while giving almost as much flexibility as having a fully programmable template language.

However the Tal and Seamstress models go a little further... now we've made the code layer manipulate the presentation layer.

This is just simply not true at all, the perl layer cannot manipulate the presentation layer, TAL is nothing like Seamstress or Empty in this respect.

The second comment makes me wonder if you actually know TAL at all. Perhaps you have been misled by the comments above into thinking that it is similar to Seamstress and Empty.

In reply to Re^2: RFC - Template::Empty by fergal
in thread RFC - Template::Empty by redhotpenguin

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