[NTG-context] fit to width by negative letterspacing or narrowing

Henning Hraban Ramm hraban at fiee.net
Wed May 18 09:41:46 CEST 2011

Am 2011-05-17 um 13:53 schrieb Hans Hagen:

> On 17-5-2011 1:25, Henning Hraban Ramm wrote:
>> Hello again, it's been a while... ;-)
>> I need to pack fixed lines into a fixed width box.
>> Some years ago I had something similar in plain PostScript, where I
>> pre-calculated the width of a text box, let the default font if it  
>> would
>> fit my max size, otherwise try a narrow font and if that wasn’t  
>> enough
>> decreased font size until it would fit.
>> This time I've only one font and must not decrease font size, but  
>> must
>> use negative kerning and perhaps some artificial narrowing.
>> How can I do that with ConTeXt?
>> I use MkIV, so any Lua solution is welcome.
> \starttext
> \definefontfeature[realugly][default][extend=0.25]
> \definedfont[Serif*realugly] Only You Can Read This
> \stoptext

Thank you - but this is fixed narrowing. I also found stretching to a  
fixed width using \stretched:

\hbox to 3.9cm{\stretched{Täxt wÿth ſpöciäl çhaŕàćťërs}}

(You don’t need to escape Unicode chars anymore, in contrast to the  

But what I really need is some width checking like "if this line is  
wider than 4cm, then use stretching/narrowing".
I don’t want to murder typography if the text is short enough.

Greetlings from Lake Constance!
https://www.cacert.org (I'm an assurer)

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