lower case "a" incompatible with hanging

lower case "a" incompatible with hanging

[Michael Green]

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On Dec 21, 2009, at 3:00 AM, Lutz Haseloff wrote:

> 2009/12/19 Taco Hoekwater <taco@elvenkind.com>
>
>> Hi,
>>
>> This was a bug in luatex: the function that copies the font
>> information from the base font to the expanded font did not
>> copy the last glyph at all.

[snip]

>>
>> Lutz Haseloff wrote:
>>
>>> Hi Michael,
>>>
>>> Your file works here without problems with the same ConTeXt and
>>> LuaTeX, Version beta-0.47.0-2009121623.
>>>
>>
>> That's weird, did you use Michaels font?
>>
>>
> I don't think so:
>
> My OctavianMTStd.otf:
> Version 2.040;PS 002.000;honconv 1.0.51;makeotf.lib 2.0.18671
>
>
> Greetings Lutz
>

They're different. Mine is: Version 1.047;PS 001.000;Core  
1.0.38;makeotf.lib1.6.5960

mjg


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Re: lower case "a" incompatible with hanging

[Lutz Haseloff]

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2009/12/19 Taco Hoekwater <taco@elvenkind.com>

> Hi,
>
> This was a bug in luatex: the function that copies the font
> information from the base font to the expanded font did not
> copy the last glyph at all. There is a one-character patch to
> trunk/source/texk/web2c/luatexdir/font/texfont.c:
>
>
> @@ -1094,7 +1094,7 @@
>         memcpy(math_param_base(k), math_param_base(f), i);
>     }
>
> -    for (i = 0; i < font_tables[f]->charinfo_count; i++) {
> +    for (i = 0; i <= font_tables[f]->charinfo_count; i++) {
>         ci = copy_charinfo(&font_tables[f]->charinfo[i]);
>         font_tables[k]->charinfo[i] = *ci;
>     }
>
> And that fixes it.
>
> The only oddness with this particular font is that the 'a' happens
> to be its last glyph in the ordering of the glyph implementations
> inside the otf file. Usually, the last of those is something odd
> like an alternate or a designer' logo, which is probably why nobody
> noticed before.
>
>
> Lutz Haseloff wrote:
>
>> Hi Michael,
>>
>> Your file works here without problems with the same ConTeXt and
>> LuaTeX, Version beta-0.47.0-2009121623.
>>
>
> That's weird, did you use Michaels font?
>
>
I don't think so:

My OctavianMTStd.otf:
Version 2.040;PS 002.000;honconv 1.0.51;makeotf.lib 2.0.18671


Greetings Lutz



> Best wishes,
> Taco
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
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___________________________________________________________________________________

Re: lower case "a" incompatible with hanging

[Taco Hoekwater]

Hi,

This was a bug in luatex: the function that copies the font
information from the base font to the expanded font did not
copy the last glyph at all. There is a one-character patch to
trunk/source/texk/web2c/luatexdir/font/texfont.c:


@@ -1094,7 +1094,7 @@
          memcpy(math_param_base(k), math_param_base(f), i);
      }

-    for (i = 0; i < font_tables[f]->charinfo_count; i++) {
+    for (i = 0; i <= font_tables[f]->charinfo_count; i++) {
          ci = copy_charinfo(&font_tables[f]->charinfo[i]);
          font_tables[k]->charinfo[i] = *ci;
      }

And that fixes it.

The only oddness with this particular font is that the 'a' happens
to be its last glyph in the ordering of the glyph implementations
inside the otf file. Usually, the last of those is something odd
like an alternate or a designer' logo, which is probably why nobody
noticed before.

Lutz Haseloff wrote:
> Hi Michael,
> 
> Your file works here without problems with the same ConTeXt and
> LuaTeX, Version beta-0.47.0-2009121623.

That's weird, did you use Michaels font?

Best wishes,
Taco
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___________________________________________________________________________________

Re: lower case "a" incompatible with hanging

[Lutz Haseloff]

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Hi Michael,

Your file works here without problems with the same ConTeXt and
LuaTeX, Version beta-0.47.0-2009121623.

Greetings Lutz


2009/12/17 Michael Green <merely.ridiculous@gmail.com>

> I have a font oddity to report: if I use \setupalign [hanging,hz], the
> lower case letter "a" disappears in a particular font.
>
> This doesn't happen with other fonts and the missing letter comes back if I
> remove \setupalign [hanging,hz].
>
> If this is a bug that you would like to investigate, I would be happy to
> send the font privately.
>
> Michael
>
> This is LuaTeX, Version beta-0.46.0-2009112820
>
> ConTeXt  ver: 2009.12.15 23:38 MKIV  fmt: 2009.12.16  int: english/english
>
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>
>

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If your question is of interest to others as well, please add an entry to the Wiki!

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___________________________________________________________________________________

lower case "a" incompatible with hanging

[Michael Green]

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I have a font oddity to report: if I use \setupalign [hanging,hz], the  
lower case letter "a" disappears in a particular font.

This doesn't happen with other fonts and the missing letter comes back  
if I remove \setupalign [hanging,hz].

If this is a bug that you would like to investigate, I would be happy  
to send the font privately.

Michael

This is LuaTeX, Version beta-0.46.0-2009112820

ConTeXt  ver: 2009.12.15 23:38 MKIV  fmt: 2009.12.16  int: english/ 
english


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\definefontfeature[smallcaps][language=DFLT,script=latn,kern=yes,smcp=yes,tlig=yes,trep=yes,liga=yes,protrusion=pure,mode=node,expansion=quality]
\definefontfeature[oldstyle][language=DFLT,script=latn,kern=yes,onum=yes,tlig=yes,trep=yes,liga=yes,protrusion=pure,mode=node,expansion=quality]

\definebodyfontenvironment[default][em=italic]


\starttypescript[serif][octavian]
\definefontsynonym  [OctavianRegular][name:OctavianMTStd][features=default]
\definefontsynonym  [OctavianItalic] [name:OctavianMTStd-Italic][features=default]
\definefontsynonym  [OctavianBold] [name:OctavianMTStd][features=default]% Octavian lacks a bold weight
\definefontsynonym  [OctavianBoldItalic] [name:OctavianMTStd-Italic][features=default]% Octavian lacks a bold weight
\definefontsynonym  [OctavianCaps]   [name:OctavianMTStd][features=default]
\stoptypescript

\starttypescript[serif][octavian][name]
\definefontsynonym  [Serif]           [OctavianRegular][features=oldstyle]
\definefontsynonym  [SerifItalic]     [OctavianItalic][features=oldstyle]
\definefontsynonym  [SerifBold]       [OctavianBold][features=oldstyle]   
\definefontsynonym  [SerifCaps]       [OctavianCaps][features=smallcaps] 
\definefontsynonym  [SerifSlanted]    [OctavianItalic][features=oldstyle]
\definefontsynonym  [SerifBoldItalic] [OctavianBoldItalic][features=oldstyle]
\definefontsynonym  [SerifBoldSlanted][OctavianBoldItalic][features=oldstyle]
\stoptypescript

\starttypescript [octavian]
  \definetypeface [octavian] [rm] [serif] [octavian] [default]
\stoptypescript

\usetypescript[octavian]
\setupbodyfont[octavian,12pt]

\setupalign [hanging,hz]

\starttext
\title{Octavian test}

I think that my Octavian font cannot use hanging and the lower case letter “a” at the same time. This is very odd.

\input dawkins

\it Let’s try it with italics. I think that my Octavian font cannot use hanging and the lower case letter “a” at the same time. This is very odd.

\input dawkins

\stoptext

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___________________________________________________________________________________