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From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Ampersand in Metapost
Date: Fri, 14 May 2010 15:32:30 +0200	[thread overview]
Message-ID: <4BED50EE.2030808@wxs.nl> (raw)
In-Reply-To: <alpine.LNX.2.00.1005132106200.16359@ybpnyubfg.ybpnyqbznva>

On 14-5-2010 3:07, Aditya Mahajan wrote:

>> This is because the commands are interpreted with TeX before they are
>> written to mpgraph.mp. The \letterampersand or \& generates the
>> character & alone: you need to preceed it with backslash, so that
>> metapost finally knows what to do.
>
> So, should all the \letter... commands (basically anything generated
> from char-def.lua) be unexpandable?
>
> You can also try \noexpand\letterampersand

The problem is that some definitions, likt \& and \# expand to letters 
which is needed when used in mp itself. That also means that resetting 
them to their normal meaning is not possible as textext is handled in mp 
and then already an \& has become a &.

As & is rather common, I added it to \nonknuthmode, so you can say:

\nonknuthmode

\starttext
     \startMPcode
         draw textext("Underscores, Superscripts & Ampersands" & "?") ;
     \stopMPcode
\stoptext

Aditya: I also changed the definition of \_ in math ... it now looks 
better when used in script(scripts) .. see \fakeunderscore.

Hans



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  parent reply	other threads:[~2010-05-14 13:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-13 19:18 Marco
2010-05-13 20:58 ` Hans Hagen
2010-05-13 21:40   ` Mojca Miklavec
2010-05-13 21:45   ` Marco
2010-05-13 22:37     ` Mojca Miklavec
2010-05-14  1:07       ` Aditya Mahajan
2010-05-14 10:09         ` Marco
2010-05-14 13:32         ` Hans Hagen [this message]
2010-05-14 10:06       ` Marco
2010-05-14 10:39         ` Hans Hagen
2010-05-14 10:44         ` Hans Hagen
2010-05-14 11:45           ` Marco
2010-05-14 12:17             ` Hans Hagen
2010-05-14 15:20         ` Mojca Miklavec
2010-05-14 19:34           ` Marco

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