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#927 UTF-8 bidi/rtl/ltr characters are not correctly implemented
Originally created by: *anonymous
Originally created by: pnorcks@gmail.com
Originally owned by: pnorcks@gmail.com
The following characters should be processed by Pango to satisfy the
conditions specified in the Unicode Bidirectional Algorithm
(http://unicode.org/reports/tr9/).
U+200E
U+200F
U+202A
U+202B
U+202C
U+202D
U+202E
This requires some changes in lily/pango-font.cc to prevent glyph lookups
for these characters. I have already started working on it.
Original report:
http://lists.gnu.org/archive/html/lilypond-devel/2009-12/msg00062.html
Related
Discussion
Originally posted by: v.villenave
Ted Walther has offered a $100 bounty. (I would offer to double it as I always do,
but it's getting a bit out of my league now :-)
Labels: Bounty
Originally posted by: pnorcks@gmail.com
Some notes for myself (based on my current understanding/debugging):
1) LilyPond does not need to implement the Unicode Bidirectional Algorithm.
2) If markup is added to a PangoLayout instead, the bidi issues are taken care of by
Pango.
3) LilyPond needs to extract the resulting line and concatenate each piece of the
split markup to create the final Stencil.
Originally posted by: pnorcks@gmail.com
I will add a regression test soonish.
Labels: fixed_2_13_10
Status: Fixed
Originally posted by: pnorcks@gmail.com
Please see these new regression tests:
input/regression/markup-bidi-explicit-embedding.ly
input/regression/markup-bidi-explicit-overrides.ly
input/regression/markup-bidi-implicit-marks.ly
Let me know if I should provide longer explanations in the texidocs.
Originally posted by: v.villenave
(No comment was entered for this change.)
Status: Verified