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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -1,3 +1,24 @@ +2019-07-04 Chris Liddell <chris.liddell@artifex.com> + + [psaux] (1/2) Handle fonts that use SEAC for ligatures (#56580). + + As originally intended, a Type 1 SEAC charstring would be used for + an accented glyph (like `acaron' or `uumlaut'), where the advance + width of the SEAC glyph is the same as that of the `base' glyph + (like `a' or `u'). In this case it is not uncommon for the SEAC + glyph to not use an (H)SBW opcode of its own but to rely on the + value from the base glyph. + + However, out-of-spec fonts also use SEAC glyphs for ligatures (like + `oe' or `fi'), and in those cases the overall advance width is + greater than that of the `base' glyph. For this reason we have to + allow that the SEAC glyph can have an (H)SBW value of its own, and + if it has, retain this value, rather than the one from the base + glyph. + + * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escSEAC>: + Implement it. + 2019-07-01 Werner Lemberg <wl@gnu.org> * Version 2.10.1 released. |