Re: [NTG-context] [***SPAM***] Incorrect internal font processing
On 11/27/2013 10:20 PM, Jan Tosovsky wrote:
On 2013-11-27 Hans Hagen wrote:
On 11/27/2013 9:53 PM, Jan Tosovsky wrote:
On 2013-11-27 Hans Hagen wrote:
On 11/27/2013 8:44 PM, Jan Tosovsky wrote:
during my attempts to patch the Palatino's dotless 'i' I found that this font is parsed incorrectly by ConTeXt.
Comparing index/name info of individual glyphs in the font software and resulting pala.tma file there is the following difference:
Index | Name - font | Name - tma 1110 | dotlessi.smcp | i.sc (1) 1170 | i.smcp | i.sc (2)
The first one should have IMHO a different name, e.g. dotlessi.sc (to keep conventions). The same name for two glyphs might be dangerous.
the font pala.ttf has two entries i.sc and i see no reference to *.smcp
There is no 'i.sc' glyph available according to the font software, only those .smcp, listed in the smcp6 table.
As there are only .sc names in the TMA file, I suppose there is some kind of name normalization. But not very precise...
mtxrun --script font --save pala.ttf
I can confirm your observations. In this lua export there is no .smcp, but doubled i.sc records. Strange. There must be really some kind of normalization there...
the fact that there are two i.sc in the font is suspicious ... best check the font in fontforge ... one never know what kind of things other programs do
It would be nice to review the corresponding part of the code as it is IMHO potentially dangerous.
afaik no magic there Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On 2013-11-27 Hans Hagen wrote:
On 11/27/2013 10:20 PM, Jan Tosovsky wrote:
On 2013-11-27 Hans Hagen wrote:
On 11/27/2013 9:53 PM, Jan Tosovsky wrote:
On 2013-11-27 Hans Hagen wrote:
On 11/27/2013 8:44 PM, Jan Tosovsky wrote:
during my attempts to patch the Palatino's dotless 'i' I found that this font is parsed incorrectly by ConTeXt.
Comparing index/name info of individual glyphs in the font software and resulting pala.tma file there is the following difference:
Index | Name - font | Name - tma 1110 | dotlessi.smcp | i.sc (1) 1170 | i.smcp | i.sc (2)
The first one should have IMHO a different name, e.g. dotlessi.sc (to keep conventions). The same name for two glyphs might be dangerous.
the fact that there are two i.sc in the font is suspicious ... best check the font in fontforge ... one never know what kind of things other programs do
Hmm, FontForge glyphs naming corresponds to what we can observe in the ConTeXt (doubled i.sc). My previous analysis was based on FontLab. I am confused now... Jan
participants (2)
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Hans Hagen -
Jan Tosovsky