table: code doesn't work any more with recent beta

table: code doesn't work any more with recent beta

[Mojca Miklavec]

Hello Hans,

The following code compiles fine with MikTeX (version 2006.08.22), but
fails with a recent beta:

\def\room#1{\starttable[ s0 |r|l|]#1\stoptable}
\def\student#1#2{\NC#1\NC#2\NC\MR}

\starttext
\room{
	\student{A}{B}
	\student{C}{D}
}
\stoptext


I get the following error:


! Undefined control sequence.
\dotextmodediscretionary ...up \let \nextnextnext
                                                  \egroup \def \next ##1#1{\...
<argument>  s0 |
                r|l|
\doifsomething #1->\edef \!!stringa {#1
                                       }\ifx \!!stringa \empty \expandafter ...

\thirdstagestartTABLE ...etall \doifsomething {#1}
                                                   {\def \TABLEformat {#1}\g...

\dorestartTABLE ...restartTABLE {#1}\restartTABLE
                                                  \TABLEnoalign {\globalpush...

\room #1->\starttable [ s0 |r|l|]
                                 #1\stoptable
l.9 }

?
! Emergency stop.

Mojca

Re: table: code doesn't work any more with recent beta

[Sanjoy Mahajan]

I'd seen a similar problem but didn't manage to catch it before it
slithered away.  But I'm pretty sure it used to work (perhaps with an
August 06 release).

Starting from your example, the following was the smallest file I
could find showing the same problem (using the latest beta):

\def\room{\starttable[|r|l|]}
\starttext
\room
\NC a \NC b \NC\MR
\stoptable
\stoptext

I think it's related to the argument processing in \starttable because
this works:

\def\room{\starttable}
\starttext
\room[|r|l|]
\NC a \NC b \NC\MR
\stoptable
\stoptext

-Sanjoy

`Never underestimate the evil of which men of power are capable.'
         --Bertrand Russell, _War Crimes in Vietnam_, chapter 1.

Re: table: code doesn't work any more with recent beta

[Wolfgang Schuster]

On Sun, 01 Oct 2006 22:42:03 +0100
Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk> wrote:

> I'd seen a similar problem but didn't manage to catch it before it
> slithered away.  But I'm pretty sure it used to work (perhaps with an
> August 06 release).
> 
> Starting from your example, the following was the smallest file I
> could find showing the same problem (using the latest beta):
> 
> \def\room{\starttable[|r|l|]}
> \starttext
> \room
> \NC a \NC b \NC\MR
> \stoptable
> \stoptext
> 
> I think it's related to the argument processing in \starttable because
> this works:
> 
> \def\room{\starttable}
> \starttext
> \room[|r|l|]
> \NC a \NC b \NC\MR
> \stoptable
> \stoptext
> 
> -Sanjoy
> 

The arguments seems to be procesed as a argument for discretionaries.

The following works but it is no real solution for the problem.

\unprotect

%\beginETEX \detokenize

\def\installdiscretionaries#1#2#3%
  {\setevalue{\strippedcsname\mathmodediscretionary\string#1}
{\detokenize{#1}}% \setvalue {\strippedcsname\textmodediscretionary
\string#1}{#3}% \catcode`#1=\@@active
   \scratchcounter=\the\uccode`~
   \uccode`~=`#1
   \uppercase{\unexpanded\def~{\discretionarycommand~}}%
   \uccode`~=\scratchcounter}

%\endETEX

\installdiscretionaries || \compoundhyphen

\protect

\def\room#1{\starttable[ s0 |r|l|]#1\stoptable}
\def\student#1#2{\NC#1\NC#2\NC\MR}

\starttext
\room{
	\student{A}{B}
	\student{C}{D}
}
\stoptext

Wolfgang

Re: table: code doesn't work any more with recent beta

[John R. Culleton]

On Monday 02 October 2006 13:07, Wolfgang Schuster wrote:
> On Sun, 01 Oct 2006 22:42:03 +0100
>
> Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk> wrote:
> > I'd seen a similar problem but didn't manage to catch it before it
> > slithered away.  But I'm pretty sure it used to work (perhaps with an
> > August 06 release).

Worst case as an emergency fix you could pick up the table module 
from the texsis suite: TXSruled.tex. I use it all the time in plain tex and
pdfetex. It will work in Context too. Here is a sample:
\input TXSruled.tex
...
\ruledtable
VENDOR \cr
John Culleton \hfill\crnorule
Able Indexers and Typesetters\hfill\crnorule
2401 Haight Avenue\hfill\crnorule
Eldersburg, MD 21784 \hfill
\endruledtable

I find this style of coding less cumbersome than the one adopted for
Context, with all the capitalizations etc.  

-- 
John Culleton
Able Indexing and Typesetting
Precision typesetting (tm) at reasonable cost.
Satisfaction guaranteed. 
http://wexfordpress.com

Re: table: code doesn't work any more with recent beta

[Mojca Miklavec]

On 10/2/06, John R. Culleton wrote:
> On Monday 02 October 2006 13:07, Wolfgang Schuster wrote:
> > On Sun, 01 Oct 2006 22:42:03 +0100
> >
> > Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk> wrote:
> > > I'd seen a similar problem but didn't manage to catch it before it
> > > slithered away.  But I'm pretty sure it used to work (perhaps with an
> > > August 06 release).
>
> Worst case as an emergency fix you could pick up the table module
> from the texsis suite: TXSruled.tex. I use it all the time in plain tex and
> pdfetex. It will work in Context too. Here is a sample:
> \input TXSruled.tex
> ...
> \ruledtable
> VENDOR \cr
> John Culleton \hfill\crnorule
> Able Indexers and Typesetters\hfill\crnorule
> 2401 Haight Avenue\hfill\crnorule
> Eldersburg, MD 21784 \hfill
> \endruledtable
>
> I find this style of coding less cumbersome than the one adopted for
> Context, with all the capitalizations etc.

I don't need a quick fix since I can still use the old version to
compile that specific document - but it would be great if it would be
fixed in the current beta as well.

I also remember some other problems with tables being reported not so
long ago (usage of \AR, \MR, \FR, \LR, ... causing problems in
macros).

But thanks for the hint. I'll take a look at TXSruled, I never heard
about it before. (I hate the way tables are dealt with inside any
flavour of TeX anyway.)

Mojca

Re: table: code doesn't work any more with recent beta

[Hans Hagen]

Wolfgang Schuster wrote:
> On Sun, 01 Oct 2006 22:42:03 +0100
> Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk> wrote:
>
>   
>> I'd seen a similar problem but didn't manage to catch it before it
>> slithered away.  But I'm pretty sure it used to work (perhaps with an
>> August 06 release).
>>
>> Starting from your example, the following was the smallest file I
>> could find showing the same problem (using the latest beta):
>>
>> \def\room{\starttable[|r|l|]}
>>     
i've cleaned up some of the | code and due to a change in load order this table in def was broken; i hope the latest beta fixes it

Hans 

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