Virgil Ierubino wrote:

<...> you don't have to enclose strings in "quotes". If you want to compare a string to an empty string, you'd use {{#ifeq: {{{1}}} | | then | else }} (i.e. literally put an empty string). Your version had it comparing to a pair of literal double quotes.

Another thing to note is that if {{{1}}} is unspecified (i.e. there is no first parameter) then it comes out as a literal "{{{1}}}" i.e. not empty.

What you need is a default for the parameter, defined by a string after a pipe. So {{{1|hello}}} would return "hello" if {{{1}}} was not specified, otherwise it would return whatever was specified.

In your case, you need the parameter to return nothing if unspecified, so you want to use {{{1|}}} (i.e. an empty default).

Your code looks like it would work with these changes.

Yes, it works like a charm! Thank you very much.

The final code (expanding the link with up to five parameters) , fixed according your instructions above:

{{ #ifexist:Image:{{{1|}}} | {{ #ifeq:{{{2|}}} || [[Image:{{{1}}}]] | {{ #ifeq:{{{3|}}} || [[Image:{{{1}}}|{{{2}}}]] | {{ #ifeq:{{{4|}}} || [[Image:{{{1}}}|{{{2}}}|{{{3}}}]] | {{ #ifeq:{{{5|}}} || [[Image:{{{1}}}|{{{2}}}|{{{3}}}|{{{4}}}]] | [[Image:{{{1}}}|{{{2}}}|{{{3}}}|{{{4}}}|{{{5}}}]] }} }} }} }} | [[Category:Missing image|{{{1}}}]] }}

Regards,

// Rolf Lampa

On 03/04/07, Rolf Lampa rolf.lampa@rilnet.com wrote:

...

Hi all,

I'm making a template attempting to get ParserFunctions to determine assigned parameters for me, but it seems like I can't nest multiple #ifeq-functions.

Imagine the template {{pseudoimage}}, it should be able to properly handle multiple params:

{{pseudoimage|image name.jpg}} {{pseudoimage|image name.jpg|thumb}} {{pseudoimage|image name.jpg|thumb|65px}} {{pseudoimage|image name.jpg|thumb|65px|left}} {{pseudoimage|image name.jpg|thumb|65px|left|Well, descriptive text}}

The first case to test is easy, and it works:

Test 1: {{{1}}} = image name:

{{#ifexist:[[Image:{{{1}}}]]|[[Image:{{{1}}}]]|[[Category:Image missing]]}}

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Test 2: ( same as above, plus checking for SECOND param - works )

{{#ifexist:[[Image:{{{1}}}]]| {{#ifeq:{{{2}}}|""|[[Image:{{{1}}}]]|[[Image:{{{1}}}|{{{2}}}]]}} |[[Category:Image missing]]}}

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Test 3: ( same as above, plus checking for THIRD param - does NOT work)

{{ #ifexist:Image:{{{1}}} | {{ #ifeq:{{{2}}} | "" | [[Image:{{{1}}}]] | {{ #ifeq:{{{3}}} | "" | [[Image:{{{1}}}|{{{2}}}]] | [[Image:{{{1}}}|{{{2}}}|{{{3}}}]] }} }} | [[Category:Image missing]] }}

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So now, how can I achieve something like this. I need to check at least five parameters (I think). Any ideas of other ways to achieve the same goal?

Regards,

// Rolf Lampa

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