https://issues.apache.org/bugzilla/show_bug.cgi?id=51144
Bug #: 51144
Summary: ToUnicode table for subset font contains invalid
entries
Product: Fop
Version: 1.0
Platform: All
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: fonts
AssignedTo: fop-dev@xmlgraphics.apache.org
ReportedBy: r.grosm...@gmail.com
Classification: Unclassified
In the ToUnicode table that maps character codes from a subset font to unicode
characters, the first three entries map to unicode <ffff>. The first one is the
.notdef glyph, so this is OK, but the following two might be incorrect.
This is the beginning of such a table:
21 beginbfchar
<0000> <ffff>
<0001> <ffff>
<0002> <ffff>
<0003> <002d>
<0004> <0031>
I posted a question on the fop-users mailing list on 2 may 2011. Mehdi
Houshmand replied on 3 may 2011:
Yes this is a bug, which has been fixed in my patch, but since I
didn't think anyone else had bumped into it I didn't want to put it
into trunk since I also made some code improvements to the class and
was weary that it could cause merge issues when/if the branches are
merged.
The issue is that in most fonts the first 3 glyphs are set to .notdef,
and this was implemented in FOP. However, the spec says only the first
glyph is reserved for .notdef, and what happens in MOST fonts doesn't
happen in ALL fonts.
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