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Difference between revisions of "User:Sphr/test/test3"

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:::: Actually, what you've described is basically what I've been trying :)  The problem now is in the "array elements divided by |'s)".  When formatted as current (and as described as yours), the whole chunk of | delimited data gets treated as 1 parameter instead of many parameters.  so the {{{x}}} at the last step doesn't work coz the number of param is only 2 (1 for the index we want, and 2 which is the whole chunk of | delimited stuff).  think to make it free of "subst", what we need now is actually a way to reinterpret a chunk of text as proper template invocation again... or a way to represent "the rest of the elements" with what mediawiki provides now (which seems unlikely).  -- [[User:Sphr|Sphr]] 12:08, 9 January 2008 (EST)
 
:::: Actually, what you've described is basically what I've been trying :)  The problem now is in the "array elements divided by |'s)".  When formatted as current (and as described as yours), the whole chunk of | delimited data gets treated as 1 parameter instead of many parameters.  so the {{{x}}} at the last step doesn't work coz the number of param is only 2 (1 for the index we want, and 2 which is the whole chunk of | delimited stuff).  think to make it free of "subst", what we need now is actually a way to reinterpret a chunk of text as proper template invocation again... or a way to represent "the rest of the elements" with what mediawiki provides now (which seems unlikely).  -- [[User:Sphr|Sphr]] 12:08, 9 January 2008 (EST)
 
:::::What I've described is very similar to what you've been trying. Its analogous to passing a variable to a function by reference instead of over the stack. I will try to build a working model to convince you. [[User:VengefulDonut|VengefulDonut]] 01:49, 10 January 2008 (EST)
 
:::::What I've described is very similar to what you've been trying. Its analogous to passing a variable to a function by reference instead of over the stack. I will try to build a working model to convince you. [[User:VengefulDonut|VengefulDonut]] 01:49, 10 January 2008 (EST)
:::::Done. [[User:VengefulDonut/experiment/b]] is "page b". [[User:VengefulDonut/experiment/c]] contains all the array information.
+
:::::Done. [[User:VengefulDonut/experiment/b]] is "page b". [[User:VengefulDonut/experiment/c]] contains all the array information. [[User:VengefulDonut|VengefulDonut]] 02:07, 10 January 2008 (EST)
  
 
3x3 array (row|col|data) : 3|3|a|b|c|d|e|f|g|h|i
 
3x3 array (row|col|data) : 3|3|a|b|c|d|e|f|g|h|i

Revision as of 07:07, 10 January 2008

array test:

3x3 array (row|col|data) : 3|3|a|b|c|d|e|f|g|h|i

element(0,0): 0

element(0,1): 1

element(0,2): 3

element(1,0): 3

element(1,1): a

element(1,2): b

element(2,0): c

element(2,1): d

element(2,2): e


{{:User:Sphr/test/test4}}

{{{ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{{1}}} }} }} }}}

element(0,0): {{:User:Sphr/f/array2_elem|0|0|{{subst:User:Sphr/test/test4}}}}

element(0,0): 0

element(0,0): {{{ {{:User:Sphr/f/minus_{{{4}}}|{{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_{{ :User:Sphr/f/inc_ {{{4}}} }} }} }} }} }}}} }}}

{{{ {{ :User:Sphr/f/dec_ {{ :User:Sphr/f/dec_ {{ :User:Sphr/f/dec_{{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_{{:User:Sphr/f/add_{{{2}}}|{{:User:Sphr/f/mult_{{{1}}} | 3 }}}} }} }} }} }} }} }} }} }}}

{{ :User:Sphr/f/array2_elem|1|1| {{{ {{ :User:Sphr/f/dec_ {{ :User:Sphr/f/dec_ {{ :User:Sphr/f/dec_{{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_ {{ :User:Sphr/f/inc_{{:User:Sphr/f/add_{{{2}}}|{{:User:Sphr/f/mult_{{{1}}} | 3 }}}} }} }} }} }} }} }} }} }}} }}

Is there a way to render text as template directly?



element(0,0): {{{ {{:User:Sphr/f/array2_index|{{{1}}}|{{{2}}}|{{{3}}}|{{{4}}}}} }}}

notes

notes:

have to use subst. how to do it by reference?

Possibly order of evaluation is outside in, which prob results in {{subst:User:Sphr/test/test4}} not being evaluated first.

I think you're correct about evaluation order. I think this could be solved by making the User:Sphr/f/array2_elem function recieve a reference instead of trying to pass the entire array. VengefulDonut 13:15, 8 January 2008 (EST)
lol, this is not really a programming language. There is no "passing" of variables by reference or otherwise. It is more like lexical substitution. Thus, I don't have a good way to solve the above problem yet. If only I know a way to do substring extraction in mediawiki..... -- Sphr 21:40, 8 January 2008 (EST)
I think I explained myself poorly. I thought the analogy was clearer. Since you can't substitute a line of text into a template's input (order of evaluation is wrong), you can instead include the name of another template and have your array template extract the element from there. The simplest example I can think of:
  • replace the outside {{{x}}} of User:Sphr/f/array2_elem with {{{{{5}}}|x}}. (the x refers to everything in between).
  • use {{:User:Sphr/f/array2_elem|0|0|3|3|:User:Sphr/test/test4}}.
  • change User:Sphr/test/test4 to {{:User:Sphr/test/test4/{{{1}}}}}
  • put the nececcary things in test4's subpages
  • {{:User:Sphr/f/array2_elem|0|0|3|3|:User:Sphr/test/test4}} will evaluate on the array page as {{:User:Sphr/test/test4|5}} which will evaluate as {{:User:Sphr/test/test4/5}}.

This is a dirty fix to demonstrate the idea; you could probably find something much cleaner. VengefulDonut 00:58, 9 January 2008 (EST)

ok. just to get myself orientated. From what you described, it seems that I must breakup the content of an "array" into subpages? That has been something that I wanted to avoid. Actually trying to see if there's a way to store and use "arrayed" data in an easier manner and I think creating one subpage for each element is a little overkill. Still, the need for subst atm is limiting but still somewhat useful in cases where we just need a one-time insertion of data without need to look it up. But maybe the real solution is to await the upgrade of wiki engine to support the newer parser functions.... -- Sphr 02:22, 9 January 2008 (EST)
I'm not sure if necessary to use subpages or not. It was the first thing I thought of to make the example function. My gut tells me there must be a way to make a single page that dynamically returns one element from a set. VengefulDonut 10:39, 9 January 2008 (EST)
Oh! Subpages aren't necessary. Just implement the same system you're using for the array (it seems a bit arcane to me) to make that happen :). So..
  • Page a: {{:page b|0|0|3|3|:page c))
  • Page b: (mysterious voodoo that evaluates to {{:page c|(elementnumber)}})
  • Page c: {{:page d|(elementnumber)|(array elements divided by |'s)}}
  • Page d: {{{ {{inc {{{1}}} }} }}}
"Mysterious voodoo" refers to what is on this page: User:Sphr/f/array2_elem. I don't really understand it, but I know it can be implemented in this way :) VengefulDonut 10:52, 9 January 2008 (EST)
Actually, what you've described is basically what I've been trying :) The problem now is in the "array elements divided by |'s)". When formatted as current (and as described as yours), the whole chunk of | delimited data gets treated as 1 parameter instead of many parameters. so the {{{x}}} at the last step doesn't work coz the number of param is only 2 (1 for the index we want, and 2 which is the whole chunk of | delimited stuff). think to make it free of "subst", what we need now is actually a way to reinterpret a chunk of text as proper template invocation again... or a way to represent "the rest of the elements" with what mediawiki provides now (which seems unlikely). -- Sphr 12:08, 9 January 2008 (EST)
What I've described is very similar to what you've been trying. Its analogous to passing a variable to a function by reference instead of over the stack. I will try to build a working model to convince you. VengefulDonut 01:49, 10 January 2008 (EST)
Done. User:VengefulDonut/experiment/b is "page b". User:VengefulDonut/experiment/c contains all the array information. VengefulDonut 02:07, 10 January 2008 (EST)

3x3 array (row|col|data) : 3|3|a|b|c|d|e|f|g|h|i

element(0,0): User:VengefulDonut/experiment/b

element(0,1): User:VengefulDonut/experiment/b

element(0,2): User:VengefulDonut/experiment/b

element(1,0): User:VengefulDonut/experiment/b

element(1,1): User:VengefulDonut/experiment/b

element(1,2): User:VengefulDonut/experiment/b

element(2,0): User:VengefulDonut/experiment/b

element(2,1): User:VengefulDonut/experiment/b

element(2,2): User:VengefulDonut/experiment/b