Re: Incorrect newline counters

I think (someone correct me if this isn't right) custom functions must 
produce their own newlines if they need them.

Dmitry Koteroff wrote:

>MO> I think this rule works: If a tag produces no output, then no
>MO> newline should be produced by it.
>Good concept.
>
>But HOW to determine which function is "pure" and which - is not?
>It  also  touches  user-defined  functions  (!),  of  course (for
>built-in  we  can point it manually, it's not interesting).
>
>Maybe if function returns NULL (of ralse) it may be considered as
>pure?
>
>NULL  is  returning at run-time, but we have to detect if we need
>\n  at  COMPILE-time. Maybe simply displace this functionality to
>runtime?
>
>
>MO> examples:
>MO> {$foo}
>MO> {$foo2}
>MO> {$foo3}
>MO> The above vars should make newlines in the resulting template since they
>MO> have output (even if it's empty).
>MO> {assign var="foo" value="bar"}
>MO> {assign var="foo2" value="bar2"}
>MO> {assign var="foo3" value="bar3"}
>MO> {if ...}
>MO> {/if}
>MO> {include ...}
>MO> The above functions should NOT make newlines in the resulting template,
>MO> there is no output. They are purely functional.
>
>MO> Dmitry Koteroff wrote:
>
>  
>
>>>MO> I'd say in theory, any function on a line **by itself** that does not
>>>MO> produce output directly should not create a line in the output. So, #2
>>>MO> would probably be the expected output. Similar example:
>>>MO> {if $foo}
>>>MO> bar
>>>MO> {/if}
>>>MO> should output:
>>>MO> bar\n
>>>MO> and not:
>>>MO> \nbar\n\n
>>>Stop. It is identical to PHP's behaviour:
>>>
>>><?if (...) {?>
>>>bar
>>><?}?>
>>>
>>>Result is "bar\n".
>>>
>>>But  you  had said before that newlines MUST not be ignored after
>>>{...} constructions!
>>>
>>>Can you explain this? Maybe newlines must be always deleted after
>>>block-tags, but not after function-tag?
>>>
>>>Can you explain the FULL behavour of different tags?
>>>      
>>>
>
>  
>

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