Does \Level2Command work?

Does \Level2Command work?

[Steffen Wolfrum]

Hi,

in one of Luigi's "Grid-keeping table"-mail I saw the term "\setbox100". I didn't try that code, don't know what it means.
But it gave me the idea: is it actually possible to use numbers in defining command's names?

Something like this ...

\setuphead[Level2]
[header=empty,page=yes,numbercommand=\Level2Command,align=middle,alternative=paragraph,style=\Level2Style,before={\strut\blank[42pt]},after={\blank[12pt]}]
\setuphead[Level3]
[header=empty,page=yes,numbercommand=\Level3Command,align=middle,alternative=paragraph,style=\Level3Style,before={\strut\blank[42pt]},after={\blank[12pt]}]

... looks much clearer than using the numbers written out in letters.

Steffen

Re: Does \Level2Command work?

[Thomas A. Schmitz]

On Mar 29, 2007, at 10:02 AM, Steffen Wolfrum wrote:

> Hi,
>
> in one of Luigi's "Grid-keeping table"-mail I saw the term  
> "\setbox100". I didn't try that code, don't know what it means.
> But it gave me the idea: is it actually possible to use numbers in  
> defining command's names?
>
> Something like this ...
>
> \setuphead[Level2]
> [header=empty,page=yes,numbercommand= 
> \Level2Command,align=middle,alternative=paragraph,style= 
> \Level2Style,before={\strut\blank[42pt]},after={\blank[12pt]}]
> \setuphead[Level3]
> [header=empty,page=yes,numbercommand= 
> \Level3Command,align=middle,alternative=paragraph,style= 
> \Level3Style,before={\strut\blank[42pt]},after={\blank[12pt]}]
>
> ... looks much clearer than using the numbers written out in letters.
>
> Steffen

The command is \setbox, 100 is the argument to this command. This is  
pure \TeX, I think it could also be written as \setbox{100} (but I  
may be wrong here). In \TeX, numbers have a catcode which is  
different from letters, that's why they cannot normally be used in  
command words (they can, however, become control symbols). For more,  
see the TeXbook, chapter 3, or Eijkhout's wonderful TeX by Topic, ch. 2.

HTH

Thomas

Re: Does \Level2Command work?

[Hans Hagen]

Thomas A. Schmitz wrote:
> On Mar 29, 2007, at 10:02 AM, Steffen Wolfrum wrote:
>
>   
>> Hi,
>>
>> in one of Luigi's "Grid-keeping table"-mail I saw the term  
>> "\setbox100". I didn't try that code, don't know what it means.
>> But it gave me the idea: is it actually possible to use numbers in  
>> defining command's names?
>>
>> Something like this ...
>>
>> \setuphead[Level2]
>> [header=empty,page=yes,numbercommand= 
>> \Level2Command,align=middle,alternative=paragraph,style= 
>> \Level2Style,before={\strut\blank[42pt]},after={\blank[12pt]}]
>> \setuphead[Level3]
>> [header=empty,page=yes,numbercommand= 
>> \Level3Command,align=middle,alternative=paragraph,style= 
>> \Level3Style,before={\strut\blank[42pt]},after={\blank[12pt]}]
>>
>> ... looks much clearer than using the numbers written out in letters.
>>
>> Steffen
>>     
>
> The command is \setbox, 100 is the argument to this command. This is  
> pure \TeX, I think it could also be written as \setbox{100} (but I  
> may be wrong here). In \TeX, numbers have a catcode which is  
> different from letters, that's why they cannot normally be used in  
> command words (they can, however, become control symbols). For more,  
> see the TeXbook, chapter 3, or Eijkhout's wonderful TeX by Topic, ch. 2.
>
>   
\setvalue{abc123}#1{\framed{#1}}

numbercommand=\getvalue{abc123}

should work

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Re: Does \Level2Command work?

[luigi scarso]

On 3/29/07, Thomas A. Schmitz <thomas.schmitz@uni-bonn.de> wrote:
>
> On Mar 29, 2007, at 10:02 AM, Steffen Wolfrum wrote:
>
> > Hi,
> >
> > in one of Luigi's "Grid-keeping table"-mail I saw the term
> > "\setbox100". I didn't try that code
good, it doesn't work, sorry. (It to was too much near to time of my
return at home).

> The command is \setbox, 100 is the argument to this command. This is
> pure \TeX, I think it could also be written as \setbox{100} (but I
> may be wrong here).
hmm
 Missing number, treated as zero.
<to be read again>
                   {
l.4 \setbox{
            100}=\ruledvbox{\hsize=18cm\input tufte }




Also wonderful for a programmer:

\expandafter\def\csname VBOX 100 00 01\endcsname{FOOO}

\csname VBOX 100 00 01\endcsname -- ok
Almost anything (numbers, spaces,..): you can use a sort of namespaces

 \csname VBOX100 00 01\endcsname -- nothing, and no error
Not defined before it, but it's not en error to call it.

\VBOX100 00 01
! Undefined control sequence.
l.8 \VBOX
        100 00 01
An error, of course: I never defined it.

The context way
\setvalue{abc123}#1{\framed{#1}}