* \type{...} as macro argument
@ 2020-11-08 13:47 Sylvain Hubert
2020-11-08 14:03 ` Wolfgang Schuster
0 siblings, 1 reply; 5+ messages in thread
From: Sylvain Hubert @ 2020-11-08 13:47 UTC (permalink / raw)
To: mailing list for ConTeXt users
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Dear List,
I would like to ask how to define a command, \same, such that
\same{\type{a b c}}
produces the same result as its argument does
\type{a b c}
The naive way doesn't work because it makes all the spaces collapse:
\define[1]\same{#1}
I would also like to ask whether this could be achieved using the lua
interface:
\startluacode
interfaces.definecommand {
name="same",
-- catcode/mode/arguments = ???
}
Thanks in advance.
Best,
Sylvain
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: \type{...} as macro argument
2020-11-08 13:47 \type{...} as macro argument Sylvain Hubert
@ 2020-11-08 14:03 ` Wolfgang Schuster
2020-11-08 16:56 ` Sylvain Hubert
0 siblings, 1 reply; 5+ messages in thread
From: Wolfgang Schuster @ 2020-11-08 14:03 UTC (permalink / raw)
To: mailing list for ConTeXt users
Sylvain Hubert schrieb am 08.11.2020 um 14:47:
> Dear List,
>
> I would like to ask how to define a command, \same, such that
>
> \same{\type{a b c}}
>
> produces the same result as its argument does
>
> \type{a b c}
>
> The naive way doesn't work because it makes all the spaces collapse:
>
> \define[1]\same{#1}
\definetype [typeTEX] [option=tex]
\starttext
\type{\startsection[title=\tex{type}]}
\typeTEX{\startsection[title=\tex{typeTEX}]}
\stoptext
Wolfgang
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: \type{...} as macro argument
2020-11-08 14:03 ` Wolfgang Schuster
@ 2020-11-08 16:56 ` Sylvain Hubert
2020-11-08 17:27 ` Wolfgang Schuster
0 siblings, 1 reply; 5+ messages in thread
From: Sylvain Hubert @ 2020-11-08 16:56 UTC (permalink / raw)
To: Wolfgang Schuster, mailing list for ConTeXt users
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Hi Wolfgang,
I'm sorry that the question was not clear enough. Let me ask in this way:
how to define a \dorecurse, such that \dorecurse{10}{\type{a b c}} does
not squash the spaces?
Sylvain
On Sun, 8 Nov 2020 at 15:03, Wolfgang Schuster <
wolfgang.schuster.lists@gmail.com> wrote:
> Sylvain Hubert schrieb am 08.11.2020 um 14:47:
> > Dear List,
> >
> > I would like to ask how to define a command, \same, such that
> >
> > \same{\type{a b c}}
> >
> > produces the same result as its argument does
> >
> > \type{a b c}
> >
> > The naive way doesn't work because it makes all the spaces collapse:
> >
> > \define[1]\same{#1}
>
>
> \definetype [typeTEX] [option=tex]
>
> \starttext
>
> \type{\startsection[title=\tex{type}]}
>
> \typeTEX{\startsection[title=\tex{typeTEX}]}
>
> \stoptext
>
> Wolfgang
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: \type{...} as macro argument
2020-11-08 16:56 ` Sylvain Hubert
@ 2020-11-08 17:27 ` Wolfgang Schuster
2020-11-08 18:35 ` Sylvain Hubert
0 siblings, 1 reply; 5+ messages in thread
From: Wolfgang Schuster @ 2020-11-08 17:27 UTC (permalink / raw)
To: Sylvain Hubert; +Cc: mailing list for ConTeXt users
Sylvain Hubert schrieb am 08.11.2020 um 17:56:
> Hi Wolfgang,
>
> I'm sorry that the question was not clear enough. Let me ask in this way:
> how to define a \dorecurse, such that \dorecurse{10}{\type{a b c}}
> does not squash the spaces?
Verbatim in arguments of other commands is tricky because in case with
\dorecurse the loop reads the content before it is passed to type, as a
result of this process all spaces are collapsed.
One way to work around this is to use a buffer for the content of the loop.
\startbuffer[type]
\type{a b c}
\stopbuffer
\starttext
\dorecurse{10}{\inlinebuffer[type]\par}
\stoptext
Wolfgang
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: \type{...} as macro argument
2020-11-08 17:27 ` Wolfgang Schuster
@ 2020-11-08 18:35 ` Sylvain Hubert
0 siblings, 0 replies; 5+ messages in thread
From: Sylvain Hubert @ 2020-11-08 18:35 UTC (permalink / raw)
To: Wolfgang Schuster, mailing list for ConTeXt users
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On Sun, 8 Nov 2020 at 18:27, Wolfgang Schuster <
wolfgang.schuster.lists@gmail.com> wrote:
> Sylvain Hubert schrieb am 08.11.2020 um 17:56:
> > Hi Wolfgang,
> >
> > I'm sorry that the question was not clear enough. Let me ask in this way:
> > how to define a \dorecurse, such that \dorecurse{10}{\type{a b c}}
> > does not squash the spaces?
>
> Verbatim in arguments of other commands is tricky because in case with
> \dorecurse the loop reads the content before it is passed to type, as a
> result of this process all spaces are collapsed.
>
> One way to work around this is to use a buffer for the content of the loop.
>
> \startbuffer[type]
> \type{a b c}
> \stopbuffer
>
> \starttext
> \dorecurse{10}{\inlinebuffer[type]\par}
> \stoptext
>
Many thanks for the answer!
It seems that the buffer mechanism is quite a powerful resort for the macro
language.
Sylvain
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________
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2020-11-08 13:47 \type{...} as macro argument Sylvain Hubert
2020-11-08 14:03 ` Wolfgang Schuster
2020-11-08 16:56 ` Sylvain Hubert
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2020-11-08 18:35 ` Sylvain Hubert
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