Re: Call for papers (pracjourn & mkiv)

[Hans Hagen <pragma@wxs.nl>]

Aditya Mahajan wrote:
> On Tue, 15 Dec 2009, Aditya Mahajan wrote:
> 
>> I will update the module so that email and website work with mkiv.
> 
> Attached is a corrected version.
> 
> Hans, can something like \doifdefinedurl be added to the core? I am 
> currently using
> 
> %D We need a macro to check if a url is defined using \type{\useURL} or 
> not.
> 
> \def\doifdefinedurl#1{\doifdefined{\v!file:::#1}}
> 
> %D \MKIV\ uses a different internal structure to store urls, so we use a
> %D different method.
> \startmode[*mkiv]
> \startluacode
>   ptj = ptj or {}
>   function ptj.doifdefinedurl(name, action)
>     if jobreferences.urls.data[name] and name ~= "" then
>       tex.sprint(tex.ctxcatcodes, action)
>     end
>   end
> \stopluacode
> 
> \def\doifdefinedurl#1#2{\ctxlua{ptj.doifdefinedurl("#1", 
> \!!bs\detokenize{#2}\!!es)}}
> 
> \stopmode

i'll add:

\def\doifurldefinedelse {\ctxlua{commands.doifurldefinedelse ("#1")}}
\def\doiffiledefinedelse{\ctxlua{commands.doiffiledefinedelse("#1")}}

fyi ... you can use constructs like:

function commands.doifurldefinedelse(name)
     commands.doifelse(jobreferences.urls.data[name])
end



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                                           Hans Hagen | PRAGMA ADE
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