Re: [htmltmpl] (no subject)

[Sam T. <sa...@tr...>]

On Mon, 11 Jul 2005, Jochen Cichon wrote:

> Hm, was my first Idea also,
> 
> but why is condition evaluated a second time ONLY if it is TRUE on the first
> run?

HTML::Template compiles an IF/ELSE into two JUMP IF ops:

     JUMP to A IF false
     ...
     ...
     JUMP TO B IF true
  A: ...
     ...
     ...
  B: ...

Thus a false condition is only tested once, but a true condition gets
tested twice.  The trick will be to link the two jumps so that the
second one re-examines the result of the first rather than running the
code again.

-sam