Commands based on previously defined commands, with fixed values for arguments

Commands based on previously defined commands, with fixed values for arguments

[Vedran Miletić]

How can I define a command by reusing the already defined command?

\def \HelloTwo #1#2 {Hello, #1 and #2!}
\def \HelloOne #1 {\HelloTwo{#1}{Vedran}}

This gives me a "Runaway argument".

-- 
Vedran Miletić
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Re: Commands based on previously defined commands, =D=A with fixed values for �rguments

[R. Bastian]

On Sat, 7 Aug 2010 18:03:22 +0200
Vedran Miletić <rivanvx@gmail.com> scribit:

> How can I define a command by reusing the already defined command?
> 
> \def \HelloTwo #1#2 {Hello, #1 and #2!}
> \def \HelloOne #1 {\HelloTwo{#1}{Vedran}}
> 
> This gives me a "Runaway argument".
> 
> -- 
> Vedran Miletić

where is #2 for HelloTwo ?

> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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> ___________________________________________________________________________________


-- 
René Bastian
www.pythoneon.org
www.musiques-rb.org
http://www.soundsurvey.org.uk/
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Re: Commands based on previously defined commands, DA with fixed values for šrguments

[Vedran Miletić]

2010/8/7 R. Bastian <rbastian@free.fr>:
> On Sat, 7 Aug 2010 18:03:22 +0200
> Vedran Miletić <rivanvx@gmail.com> scribit:
>
>> How can I define a command by reusing the already defined command?
>>
>> \def \HelloTwo #1#2 {Hello, #1 and #2!}
>> \def \HelloOne #1 {\HelloTwo{#1}{Vedran}}
>>
>> This gives me a "Runaway argument".
>>
>> --
>> Vedran Miletić
>
> where is #2 for HelloTwo ?
>

The code

\def \HelloOne #1 {\HelloTwo{#1}{Vedran} }

compiles. #2 should be fixed to "Vedran", but it comes out empty.

-- 
Vedran Miletić
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Re: Commands based on previously defined commands, DA with fixed values for šrguments

[Arthur Reutenauer]

  Even if this is completely unrelated to ConTeXt, allow me to mention
this since I find it so funny:

  The message to which I'm replying has the following weird subject:

# Subject: Re: [NTG-context] Commands based on previously defined commands,
# 	DA with fixed values for šrguments

  Notice the word "DA" at the beginning of the second line, and the word
"šrguments"?  This was obviously not in Vedran's original message:

# Subject: [NTG-context] Commands based on previously defined commands,
#         with fixed values for   arguments

  Let me venture an explanation about how this happened: when replying
to the first message, René's e-mail transformed the subject as such:

# Subject: [NTG-context]
# 	=?UTF-8?Q?Re:__Commands_based_on_previously_defined_commands,
# 	=D=A_with_fixed_values_for_=9arguments?=

  This is quoted-printable, where all the characters but the "basic"
ones are quoted using their code point in the current encoding (here
UTF-8): hence the end line characters (carriage return + line feed) have
been rewritten as =D and =A respectively, in hexadecimal (it's 13 and 10
in decimal), and the tabulation character as =9 (for some reason, there
was a tab before the word "arguments").  But this is actually not
correct, the character codes should be formatted using two hexadecimal
digits (hence =0D, =0A and =09).  This is probably why when replying to
René, Vedran's e-mail agent has interpreted the "=D" and "=A" sequences
as plain 'D' and 'A', and, upon seeing the sequence "=9arguments", it
has use the letter 'a' in "arguments" as an exadecimal digit!  Which it
has interpreted as a Windows-1252 character (Microsoft's extension of
latin-1), where 0x9A is 'š', thus producing this rather weird result.

  This is a particularily disturbing example of mojibake
(http://en.wikipedia.org/wiki/Mojibake).

	Arthur
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Re: Commands based on previously defined commands, with fixed values for arguments

[Aditya Mahajan]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 433 bytes --]

On Sat, 7 Aug 2010, Vedran Miletić wrote:

> How can I define a command by reusing the already defined command?
>
> \def \HelloTwo #1#2 {Hello, #1 and #2!}
> \def \HelloOne #1 {\HelloTwo{#1}{Vedran}}
>
> This gives me a "Runaway argument".

Can you post a complete example? This works for me

\def\HelloTwo#1#2{Hello, #1 and #2!}
\def\HelloOne#1{\HelloTwo{#1}{Vedran}}

\starttext
\HelloOne {One}
\stoptext

Aditya

[-- Attachment #2: Type: text/plain, Size: 486 bytes --]

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Re: Commands based on previously defined commands, with fixed values for arguments

[Vedran Miletić]

2010/8/7 Aditya Mahajan <adityam@umich.edu>:
> Can you post a complete example? This works for me
>
> \def\HelloTwo#1#2{Hello, #1 and #2!}
> \def\HelloOne#1{\HelloTwo{#1}{Vedran}}
>
> \starttext
> \HelloOne {One}
> \stoptext

Same here, it works. From what I see, you removed the spacing, and if
I add it back it doesn't work again.

Are there any rules where the space should be and where it should not?

-- 
Vedran Miletić
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Re: Commands based on previously defined commands, with fixed values for arguments

[Arthur Reutenauer]

> Are there any rules where the space should be and where it should not?

  The way you wrote the macro originally, the spaces were part of the
macro.  If you use your original definition of \HelloTwo, you can write
\HelloOne as follows:

----
	\def \HelloOne #1 {\HelloTwo {#1}{Vedran} }
----

and it works.

	\GoodByeOne{Arthur}
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