[XeTeX] XeTeX, fontspec, OTF, and fontdimens

[Vadim Radionov]

But still there are things to be improved.  If i want to change WordSpace
locally, I have to add
some other dummy feature (say, LetterSpace=0), or this change of inter-word
space will be applied globally to the current font.

Vadim

On Sun, Feb 27, 2011 at 12:10 PM, Vadim Radionov
<vadim.radionov at gmail.com>wrote:

> Will,
>
> Thank you for this patch, i've been waiting for it since months ago.
>
> Yours,
> Vadim
>
>
>
> On Sun, Feb 27, 2011 at 8:28 AM, Will Robertson <wspr81 at gmail.com> wrote:
>
>> On 2011-02-20 03:51:03 +1030, mskala at ansuz.sooke.bc.ca said:
>>
>>  Manually setting \fontdimen3 and \fontdimen4 seems to correctly change
>>> the
>>> space stretchability - and in fact is the workaround I'm using for the
>>> time being - but it must be repeated after every size change and so it
>>> breaks semantic markup.  That is the case even with no use of WordSpace
>>> in
>>> the document at all.
>>>
>>
>> Sorry I'm late to this discussion. Been overly busy.
>> This is pretty clearly a bug in the WordSpace feature.
>>
>> The code here is
>>
>>   \dim_set:Nn \@tempdima {#1\fontdimen2\zf at basefont}
>>   \dim_set:Nn \@tempdimb {#2\fontdimen3\zf at basefont}
>>   \dim_set:Nn \@tempdimc {#3\fontdimen4\zf at basefont}
>>
>> ...
>>  \tl_put_right:Nx \l_fontspec_postadjust_tl {
>>   \fontdimen2\font\the\@tempdima
>>
>>   \fontdimen3\font\the\@tempdimb
>>   \fontdimen4\font\the\@tempdimc
>>  }
>>
>> which is later used internally in \DeclareFontShape:
>>
>> \DeclareFontShape{\zf at enc}{\zf at family}{#2}{#3}
>>     {\l_fontspec_nfss_tl}{\l_fontspec_postadjust_tl}
>>
>>
>> So it seems like I should be writing something more like
>>
>>  \tl_put_right:Nn \l_fontspec_postadjust_tl {
>>   \fontdimen2\font=#1\fontdimen2\font
>>   \fontdimen3\font=#2\fontdimen3\font
>>   \fontdimen4\font=#3\fontdimen4\font
>>  }
>>
>> instead. Does this seem right? (This code dates back years and years, so I
>> might not have known what I was doing when this was first written.)
>>
>> If replies could be CC-ed to me via email I'll be more likely to respond
>> :)
>>
>> Cheers,
>> Will
>>
>>
>>
>>
>>
>> --------------------------------------------------
>> Subscriptions, Archive, and List information, etc.:
>>  http://tug.org/mailman/listinfo/xetex
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/xetex/attachments/20110227/2c070c64/attachment.html>