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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello TeX Users Group,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have recently been exploring TrueType implementations of
Computer Modern fonts, and am looking at the TrueType format specification. It
is clear from the spec and from apps that dump the contents of TrueType TTF
files that there could be multiple subtables in the ‘cmap’ area,
where 3.1 (Microsoft Unicode), 3.0 (Microsoft Symbol), and 1.0 (Macintosh
Roman) are very common. My question is, “On various platforms such
as Windows, Linux/Unix, Mac, how does the OS decide which encoding to use?”
For example, in Windows, if I want to add a font to the System Font Table
and specify a TTF file, how does Windows know what ‘cmap’ subtable
to use if both 3.1 and 1.0 are included in the TTF file? Is there a way
to specify the one I want? How do Linux/Unix and Mac do it? I tried
to display a particular character ID for a particular Font on a PowerPC Mac running
OS X, and was surprised when the Microsoft Unicode encoding was used rather than
the Macintosh Roman. How do Java and XWindows play a role in this? Finally,
are there equivalent issues on the Postscript Type1 side? Does anyone have
a good reference? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks very much,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Brian<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Brian P. O'Toole</span></font></b></strong><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Plotting & Exploration Group</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The MathWorks</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Phone: 508-647-7613</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Email: <a href="mailto:botoole@mathworks.com">botoole@mathworks.com</a></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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