Re: Symbols

[Willi Egger <context@boede.nl>]

Hans,

thank you very much for this section. - I see that the approach is different from what I was trying to do. - I will study and try it!

Willi

On Nov 21, 2012, at 10:26 AM, Hans Hagen wrote:

> On 11/20/2012 5:21 PM, Willi Egger wrote:
>> Hi all,
>> 
>> could someone bring light into the way how to use symbols…in MKIV
>> 
>> I wanted to extract a symbol from uzdr (Zapfdingbats).
> 
> (Somehow uzdr.afm and uzdr.pfb are not in my tex tree. I always thought that they were part of the standalone but nothing surprises me as these fonts have a history of instability.)
> 
> (Copied from an upcoming font manual:)
> 
> \startsection[title=Unicoding]
> 
> Nowadays we will mostly use fonts that ship with a \UNICODE\ aware encoding. And
> in \CONTEXT, even if we use a \TYPEONE\ font, it gets mapped onto \UNICODE.
> However, there are some exceptions, for instance the Zapf Dingbats in \TYPEONE\
> format. These have a rather obscure private encoding and the glyph names run from
> \type {a1} upto \type {a206} and have no relation to what the glyph represents.
> 
> In the case of Dingbats we're somewhat lucky that they ended up in \UNICODE, so
> we can relocate the glyphs to match their rightful place. This is done by means
> of a goodies file. We already discussed this in \in {section} [goodies] so we
> only repeat the usage.
> 
> \startbuffer
> \definefontfeature
>  [dingbats]
>  [mode=base,
>   goodies=dingbats,
>   unicoding=yes]
> 
> \definefontsynonym
>  [ZapfDingbats]
>  [file:uzdr.afm]
>  [features=dingbats]
> \stopbuffer
> 
> \typebuffer \getbuffer
> 
> I tend to qualify the Dingbat font in \TEX\ distributions as rather unstable
> because of name changes and them either or not being included. Therefore it's best to
> use the hard coded name because that triggers the most visible error message when
> the font is not found.
> 
> A font like this can for instance be used with the glyph placement macros as is
> demonstrated below. In the last line we see that a direct \UTF\ input also works
> out well.
> 
> \starttabulate[|||]
> \HL
> \NC \type{\getglyphdirect     {ZapfDingbats*dingbats}{\number"2701}} \NC \getglyphdirect     {ZapfDingbats*dingbats}{\number"2701} \NC \NR
> \NC \type{\getglyphdirect     {ZapfDingbats*dingbats}{\char"2701}}   \NC \getglyphdirect     {ZapfDingbats*dingbats}{\char"2701}   \NC \NR
> \NC \type{\getnamedglyphdirect{ZapfDingbats*dingbats}{a1}}           \NC \getnamedglyphdirect{ZapfDingbats*dingbats}{a1}           \NC \NR
> \NC \type{\getnamedglyphdirect{ZapfDingbats*dingbats}{a11}}          \NC \getnamedglyphdirect{ZapfDingbats*dingbats}{a11}          \NC \NR
> \HL
> \NC \type{\getglyphdirect     {ZapfDingbats}{\number"2701}}          \NC \getglyphdirect     {ZapfDingbats}{\number"2701}          \NC \NR
> \NC \type{\getglyphdirect     {ZapfDingbats}{\char"2701}}            \NC \getglyphdirect     {ZapfDingbats}{\char"2701}            \NC \NR
> \NC \type{\getnamedglyphdirect{ZapfDingbats}{a1}}                    \NC \getnamedglyphdirect{ZapfDingbats}{a1}                    \NC \NR
> \NC \type{\getnamedglyphdirect{ZapfDingbats}{a11}}                   \NC \getnamedglyphdirect{ZapfDingbats}{a11}                   \NC \NR
> \HL
> \NC \type{\definedfont[ZapfDingbats*dingbats]✁}                      \NC \definedfont[ZapfDingbats*dingbats]✁                      \NC \NR
> \HL
> \stoptabulate
> 
> Keep in mind that fonts like Dejavu (that we use here as document font) already
> has these characters which is why it shows up in the verbose part of the table.
> 
> \stopsection
> 
> -- 
> 
> -----------------------------------------------------------------
>                                          Hans Hagen | PRAGMA ADE
>              Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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>                                             | www.pragma-pod.nl
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