"Bullock Stuart" <[EMAIL PROTECTED]> writes:
> I have a problem in attempting to access a matrix style array.
>
> If anyone can help I should be very grateful. If I have posted to the
> wrong email address, my apologies and please advise me of the correct
> email address to TT2 problems to.
That's ok - this is the correct mailing list.
> Data Structure
>
> ===========
>
> dataFile = (
> name => "Curve Matrix"
> ,matrix => [
> [ 0 , 365 , 1095 , 1825 , 3650 , 2555 ]
> ,[2.3 , 0.142 , 0 , 0 , 0 , 0 ]
> ,[2.4 , 0 , 1.72 , 0 , 0 , 1.71 ]
> ,[2.5 , 0 , 0 , 1.75 , 1.90 , 0 ]
> ]
> );
>
> Output
> ======
>
> What I should like on the output is:
>
> 0,365,1095,1825,3650,255
> 2.3,0.142,0,0,0,0
> 2.4,0,1.72,0,0,1.71
> 2.5,0,0,1.75,1.90,0
>
> Naive Attempted Solution
> ==================
>
> [%- USE matrix = iterator(dataFile.matrix) %]
> [% FOREACH line = matrix %]
> [%- FOREACH column = line %]
> [%- %][% column %] [% IF NOT column.last %],[% END %]
> [%- END %]
> [% END %]
>
> As stated - any help or pointers with the syntax welcome.
I'd say your approach isn't naive *enough*. I don't know exactly how
much of your example you've simplified before posting, but for what
you wrote the solution is *much* easier than that.
To check whether I've understood your problem, here is a complete
program which should do what you want, with two different versions of
the template in the __DATA__ section:
----------------------------------------------------------------------
#!/usr/bin/perl -w
use strict;
use Template;
my $tt = Template->new();
my $dataFile = {name => "Curve Matrix",
,matrix =>
[[0,365,1095,1825,3650,2555],
[2.3,0.142,0,0,0,0],
[2.4,0,1.72,0,0,1.71],
[2.5,0,0,1.75,1.90,0],
]
};
$tt->process(\*DATA,{dataFile => $dataFile}) or die $tt->error();
__DATA__
[%- FOREACH line = dataFile.matrix %]
[%- FOREACH column = line %]
[%- column %][% IF NOT loop.last %],[% END %]
[%- END %]
[% END %]
[%- FOREACH line = dataFile.matrix %]
[%- GET line.join(',') %]
[% END %]
----------------------------------------------------------------------
Explanation:
* If you create an iterator, you must apply the 'last' method on that
iterator, and not on the index variable.
* You do not need to create an explicit iterator unless you want to
apply the iterator methods on the *outer* loop. There's an
iterator named 'loop' created automatically for each loop.
* And finally, there's the 'join' method which operates on a list
(one line in your case) and does exactly the same as your inner
loop.
--
Hope this helps,
haj
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