Hi! I've added the ParserFunctions extensions which allows to use #if: #ifexpr: and so on.

I've wrote the following template

__NOEDITSECTION__ {{ #if: {{{1}}} |'''From ''' [[:Category:{{{1}}} | {{{1}}}]] [[Category:{{{1}}}]] }} {{ #if: {{{2}}} |, [[:Category:{{{2}}} | {{{2}}}]] [[Category:{{{2}}}]] }} {{ #if: {{{3}}} |, [[:Category:{{{3}}} | {{{3}}}]] [[Category:{{{3}}}]] }} {{ #if: {{{4}}} |, [[:Category:{{{4}}} | {{{4}}}]] [[Category:{{{4}}}]] }} {{ #if: {{{5}}} |, [[:Category:{{{5}}} | {{{5}}}]] [[Category:{{{5}}}]] }}

When I call it with 5 parameters it is all OK, but When calling it with three parameters as follows:

{{From | Ángel Gregorio Villoldo | Angel Labruna | pepe soriano}}

I get

From Ángel Gregorio Villoldo , Angel Labruna , pepe soriano , [[:Category:{{{4}}} | {{{4}}}]] :[[Category:{{{4}}}]] , [[:Category:{{{5}}} | {{{5}}}]] [[Category:{{{5}}}]]

Which is wrong. I've tried many work arounds like adding an as"else" in this way:

{{ #if: {{{2}}} |, [[:Category:{{{2}}} | {{{2}}}]] [[Category:{{{2}}}]] | }} but it didn't work. Seems to bw that this function has some problems with empty parameters. I believe that using named parameters might be the solution but I need unnamed parameters. If anybody knows how to cope this issue please, let me know.

I've also tried to add a default empty value

{{ #if: {{{2|}}} |, [[:Category:{{{2}}} | {{{2}}}]] [[Category:{{{2}}}]] | }}

with the same result.

Am I making a mistake? Is there any workaround for this?

Thanks,

Luis

-- ----------------------------- Dr. Luis Mandel luismandel@gmail.com