Re: [Freefont-bugs] OS/2 tables

[Primoz PETERLIN]

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On Thu, 8 May 2003, Josef W. Segur wrote:

> > On Tue, 6 May 2003, Josef W. Segur wrote:
> > > The problem may be caused by that "Symbol Character Set" bit being
> > > set. I do run Win95 but don't have Internet Explorer, so I can't
> > > actually check.
> > > That flag bit is meant for fonts with arbitrary non-Unicode glyphs,
> > > such as WingDings and WebDings. I suggest clearing it for
> > > FreeMono.ttf, FreeSans.ttf, and FreeSerif.ttf. The italic, bold, and
> > > other variants are OK already.
> > Is it? I thought that the bit should be set if the fonts contains glyphs
> > from the set of Microsoft "symbol" font. At least both Symbol and
> > Wingdings fonts have this bit set, while, say, Times and Tahoma do not:
> > ...
> Yes, but Microsoft's Symbol, Wingdings, and Webdings "symbol" characters
> are accessed in the 0 to 0xFF range by old programs or the U+F000 to U+F0FF
> part of the Unicode Private Use Area. Those fonts also use a 'cmap'
> subtable for platform of 3 and encoding ID of 0, rather than the encoding
> ID of 1 which is used for textual fonts. All the "symbol" characters in
> the Free UCS fonts are Unicode code points like any other characters.
> I believe no font supplied by Microsoft has the "Symbol character set"
> flag bit combined with normal text ranges. I guess it likely that Internet
> Explorer may assume that flag bit simply means a non-text font.

Hmm. It does make some sense. You are most likely right.

With kind regards, Primoz

- --
Primož Peterlin,   Inštitut za biofiziko, Med. fakulteta, Univerza v Ljubljani
Lipičeva 2, SI-1000 Ljubljana, Slovenija.  address@hidden
Tel +386-1-5437632, fax +386-1-4315127,  http://biofiz.mf.uni-lj.si/~peterlin/
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