[XeTeX] Problem with ocrb10.otf ligature 'fi'

[Ross Moore]

Hello Pander,

On 13/06/2011, at 6:26 AM, Pander wrote:

> Hi all,
> 
> I have discovered a problem with ocrb10.otf the ligatures are not workig
> correctly in xelatex. ttx from fonttools reports only these common
> ligatures: ff-ffi-ffl-fi-fl. See example below for result. How to solve
> this?

Where did you obtain your OCR fonts from?

I just downloaded the demo from here:
      http://www.barcodesoft.com/ocr_font.aspx
and the font file names are  OCRB.otf , OCRBI.otf , OCRBIII.otf ,
and OCRBIV.otf  in OTF format.

Given that this is meant to be a mono-spaced font, I'd not expect
to have any ligatures at all.

Changing your code example to:

>>> {\fontspec{OCRB}abc ff ffi ffl fl fi}
>>> \bigskip
>>> 
>>> {\fontspec[Ligatures={Required,Common,Rare}]{OCRB}abc ff ffi ffl fl fi}
>>> \bigskip
>>> 
>>> {\fontspec[Ligatures={NoRequired,NoCommon,NoRare}]{OCRB}abc ff ffi ffl fl fi}
>>> \bigskip

the result is attached below.

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On the other hand, if you get the free example from:

   http://ansuz.sooke.bc.ca/page/fonts#ocrb

and look at the example document  ocr.pfb  then you
can see that there are many examples of  fi ffi etc.
using no ligatures.

Indeed looking at the repertoire using FontBook (on Mac OS X 10.6)
there are no fi or fl etc. ligatures.

So it is not at all clear that what you are asking for makes
much sense, with this font.


But then maybe you have a version of OCRB that comes from a 
completely different source? In which case, we need more details
before further testing can be done.

> 
> Regards,
> 
> Pander



Hope this helps,

	Ross


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Ross Moore                                       ross.moore at mq.edu.au 
Mathematics Department                           office: E7A-419      
Macquarie University                             tel: +61 (0)2 9850 8955
Sydney, Australia  2109                          fax: +61 (0)2 9850 8114
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