Testing value of a \def

Testing value of a \def

[Procházka Lukáš Ing.]

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Hello,

I'm trying to test whether value of \jobname is "Test"; I suppose it should be as the file name is "Test.mkiv".

But the code:

----
\starttext
   \jobname
   \doifelse{\jobname}{Test}{Yes}{No}
   \def\T{Test}
   \ifx\jobname\T True\else False\fi
   \ctxcommand{doifelse("\jobname" == "Test")}{1}{0}
\stoptext
----

yields "No", "False" and "1", so only the printed "1" is what I expect.

Why \doifelse and \ifx are evaluated as false?

Best regards,

Lukas


-- 
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
Pontex s. r. o.      | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4

Mob.: +420 702 033 396

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\starttext
  \jobname
  \doifelse{\jobname}{Test}{Yes}{No}
  \def\T{Test}
  \ifx\jobname\T True\else False\fi
  \ctxcommand{doifelse("\jobname" == "Test")}{1}{0}
\stoptext

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Re: Testing value of a \def

[Wolfgang Schuster]

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> Procházka Lukáš Ing. <mailto:LPr@pontex.cz>
> 8. Februar 2018 um 10:50
> Hello,
>
> I'm trying to test whether value of \jobname is "Test"; I suppose it 
> should be as the file name is "Test.mkiv".
>
> But the code:
>
> ----
> \starttext
>   \jobname
>   \doifelse{\jobname}{Test}{Yes}{No}
>   \def\T{Test}
>   \ifx\jobname\T True\else False\fi
>   \ctxcommand{doifelse("\jobname" == "Test")}{1}{0}
> \stoptext
> ----
>
> yields "No", "False" and "1", so only the printed "1" is what I expect.
>
> Why \doifelse and \ifx are evaluated as false?

The string from \jobname consists of catcode 12 letters while normal text
consists of catcode 11 letters. If you need the name of the file use one
of the commands below.


\starttext

\starttabulate
\NC \tex{jobfilefullname}     \NC \jobfilefullname     \NC\NR
\NC \tex{jobfilename}         \NC \jobfilename         \NC\NR
\NC \tex{jobfilesuffix}       \NC \jobfilesuffix       \NC\NR
\TB
\NC \tex{inputfilebarename}   \NC \inputfilebarename   \NC\NR
\NC \tex{inputfilerealsuffix} \NC \inputfilerealsuffix \NC\NR
\NC \tex{inputfilesuffix}     \NC \inputfilesuffix     \NC\NR
\NC \tex{inputfilename}       \NC \inputfilename       \NC\NR
\stoptabulate

\stoptext

Wolfgang

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___________________________________________________________________________________

Re: Testing value of a \def

[Procházka Lukáš Ing.]

Great, thank you!

Lukas


On Thu, 08 Feb 2018 11:06:29 +0100, Wolfgang Schuster <schuster.wolfgang@gmail.com> wrote:

>
>> Procházka Lukáš Ing. <mailto:LPr@pontex.cz>
>> 8. Februar 2018 um 10:50
>> Hello,
>>
>> I'm trying to test whether value of \jobname is "Test"; I suppose it
>> should be as the file name is "Test.mkiv".
>>
>> But the code:
>>
>> ----
>> \starttext
>>   \jobname
>>   \doifelse{\jobname}{Test}{Yes}{No}
>>   \def\T{Test}
>>   \ifx\jobname\T True\else False\fi
>>   \ctxcommand{doifelse("\jobname" == "Test")}{1}{0}
>> \stoptext
>> ----
>>
>> yields "No", "False" and "1", so only the printed "1" is what I expect.
>>
>> Why \doifelse and \ifx are evaluated as false?
>
> The string from \jobname consists of catcode 12 letters while normal text
> consists of catcode 11 letters. If you need the name of the file use one
> of the commands below.
>
>
> \starttext
>
> \starttabulate
> \NC \tex{jobfilefullname}     \NC \jobfilefullname     \NC\NR
> \NC \tex{jobfilename}         \NC \jobfilename         \NC\NR
> \NC \tex{jobfilesuffix}       \NC \jobfilesuffix       \NC\NR
> \TB
> \NC \tex{inputfilebarename}   \NC \inputfilebarename   \NC\NR
> \NC \tex{inputfilerealsuffix} \NC \inputfilerealsuffix \NC\NR
> \NC \tex{inputfilesuffix}     \NC \inputfilesuffix     \NC\NR
> \NC \tex{inputfilename}       \NC \inputfilename       \NC\NR
> \stoptabulate
>
> \stoptext
>
> Wolfgang
>


-- 
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
Pontex s. r. o.      | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4

Mob.: +420 702 033 396

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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________