Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-20 Thread Hans Hagen 

Radhelorn wrote:


\getparameters[\??dd#1]
  
[\s!do\c!state=\v!stop,\s!do\c!command=\normal@@descriptionhandler,\c!level=,#2]% 

-   
\doifvalue{\??dd#1\c!location}\v!top{\doassign[\??dd#1][\c!inbetween=\blank]}% 


+   \doifvalue{\??dd#1\c!location}\v!top{%
+ 
\doifnotvalue{\??dd#1\c!inbetween}{\doassign[\??dd#1][\c!inbetween=\blank]}}% 



looks ok to me 

Hans 


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[NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Radhelorn 

Hello All!
I think that I've found a bug in descriptions. It seems that it is
impossible to redefine inbetween option -- it always produces a \blank.
Try this:

\definedescription[desc][before=before,after=after,inbetween=inbetween,location=top]
\desc{test} test

I've fixed it this way:

--- core-des.tex.orig   2005-06-14 06:56:00.0 +0400
+++ core-des.tex2005-07-14 15:26:20.0 +0400
@@ -372,7 +372,8 @@
   \c!indenting,\c!indentnext,\c!align,\c!text,\c!distance,\c!command]%
\getparameters[\??dd#1]
  
[\s!do\c!state=\v!stop,\s!do\c!command=\normal@@descriptionhandler,\c!level=,#2]%
-   
\doifvalue{\??dd#1\c!location}\v!top{\doassign[\??dd#1][\c!inbetween=\blank]}%
+   \doifvalue{\??dd#1\c!location}\v!top{%
+ 
\doifnotvalue{\??dd#1\c!inbetween}{\doassign[\??dd#1][\c!inbetween=\blank]}}%
\setvalue{#1}{\dodoubleempty\@@description[#1]}%
\setvalue{\e!start#1}{\dodoubleempty\@@startdescription[#1]}%
\setvalue{\e!stop #1}{\@@stopdescription{#1}}}%


And when using commands with brackets in argumets like:

\definedescription[desc][before=\blank[small]]

ConTeXt will give many errors, so arguments needs to be grouped (before={\blank[small]}). 
Is this intentional?



Thanks for your time.

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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Taco Hoekwater 


Hi,

Radhelorn wrote:
 ... [bug and fix snipped] ..

Thanks for the bug report.


And when using commands with brackets in argumets like:

\definedescription[desc][before=\blank[small]]

ConTeXt will give many errors, so arguments needs to be grouped 
(before={\blank[small]}). Is this intentional?


Yes, that is a speed optimization. ConTeXt does not even attempt
to balance the occurrence of [ and ] at top-level, so the explicit
grouping indeed required.

It would be easy to extend ConTeXt to do this, but the speed
penalty would be substantial.

Greetings, Taco
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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Radhelorn 

Taco Hoekwater wrote:

And when using commands with brackets in argumets like:

\definedescription[desc][before=\blank[small]]

ConTeXt will give many errors, so arguments needs to be grouped 
(before={\blank[small]}). Is this intentional?



Yes, that is a speed optimization. ConTeXt does not even attempt to balance
the occurrence of [ and ] at top-level, so the explicit grouping indeed
required.

It would be easy to extend ConTeXt to do this, but the speed penalty would
be substantial.



Thanks.
So every command with brackets needs to be grouped? Maybe something else? Where
to look at it?


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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Taco Hoekwater 



Radhelorn wrote:


Thanks.
So every command with brackets needs to be grouped? Maybe something 
else? Where to look at it?


I know of nothing else, just brackets. Any bracket, not just as
part of a command, but also in cases like this:

  \setuppublications[left={[}]

Taco

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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread luigi.scarso 

Radhelorn wrote:



Thanks.
So every command with brackets needs to be grouped? Maybe something 
else? Where

to look at it?



It's better   grouping with {}  with brackets; there should be nothing else.

luigi
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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Adam Lindsay 
Taco Hoekwater said this at Thu, 14 Jul 2005 16:30:10 +0200:

 So every command with brackets needs to be grouped? Maybe something 
 else? Where to look at it?

I know of nothing else, just brackets. Any bracket, not just as
part of a command, but also in cases like this:

   \setuppublications[left={[}]

Ooh, just remembered: Commas, too. 
\setupitemize[stopper={,}]

and to be sure: every command with brackets sounds like you mean
everywhere... this is just amongst parameters.

So: brackets and commas, used as parameter values, need to have
enclosing braces.

If you think of the braces as quoting the parameter values, you'll
probably be alright.
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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Radhelorn 

Adam Lindsay wrote:

Taco Hoekwater said this at Thu, 14 Jul 2005 16:30:10 +0200:


So every command with brackets needs to be grouped? Maybe something 
else? Where to look at it?


I know of nothing else, just brackets. Any bracket, not just as
part of a command, but also in cases like this:

 \setuppublications[left={[}]



Ooh, just remembered: Commas, too. 
\setupitemize[stopper={,}]


and to be sure: every command with brackets sounds like you mean
everywhere... this is just amongst parameters.

So: brackets and commas, used as parameter values, need to have
enclosing braces.

If you think of the braces as quoting the parameter values, you'll
probably be alright.


I mean parameter values. Then why not have ConTeXt add braces to every 
parameter? Or there will be slowdown Taco mentioned?



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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Adam Lindsay 
Radhelorn said this at Thu, 14 Jul 2005 21:25:50 +0400:

 If you think of the braces as quoting the parameter values, you'll
 probably be alright.

I mean parameter values. Then why not have ConTeXt add braces to every 
parameter? Or there will be slowdown Taco mentioned?

Sort of. That, I imagine, has more to do with TeX's parser, and the
inability to look ahead.

What if I amend my statement to:

If you think of the braces as quoting the parameter values when
necessary or otherwise ambiguous, you'll probably be alright.

-- 
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 Lancaster University, InfoLab21+44(0)1524/510.514
 Lancaster, LA1 4WA, UK Fax:+44(0)1524/510.492
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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Christopher Creutzig 

Radhelorn wrote:

I mean parameter values. Then why not have ConTeXt add braces to every 
parameter? Or there will be slowdown Taco mentioned?


 Exactly.  ConTeXt would need to find out the parameters' boundaries 
first, and that is the place where things would become slow, since it is 
not possible to use TeX's built-in parser for that; it just can't handle 
two different types of balanced brackets at the same time.  Besides, 
you'd still need to quote commas, since \setupitemize[stopper=,] is just 
as valid as \setupitemize[stopper={,}] is, just with a completely 
different meaning.  And while it may be a bit strange, you could even 
set \setupitemize[stopper={, before=abc },after=\blank] – absolutely no 
way of guessing these quotes.



regards,
Christopher
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Re: [NTG-context] Not possible to redefine inbetween in \definedescription

2005-07-14 Thread Radhelorn 

Christopher Creutzig wrote:

Radhelorn wrote:

I mean parameter values. Then why not have ConTeXt add braces to every 
parameter? Or there will be slowdown Taco mentioned?



 Exactly.  ConTeXt would need to find out the parameters' boundaries 
first, and that is the place where things would become slow, since it is 
not possible to use TeX's built-in parser for that; it just can't handle 
two different types of balanced brackets at the same time.  Besides, 
you'd still need to quote commas, since \setupitemize[stopper=,] is just 
as valid as \setupitemize[stopper={,}] is, just with a completely 
different meaning.  And while it may be a bit strange, you could even 
set \setupitemize[stopper={, before=abc },after=\blank] – absolutely no 
way of guessing these quotes.



regards,
Christopher
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Thanks Adam, Christopher, you helped me a lot! It's always hard to 
explain TeXnical things to Word users.


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