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8892 Commits

Author SHA1 Message Date
Behdad Esfahbod
53806e5b83 Tiny improvement on previous commit 
Functionally the same.
 2020-11-25 11:51:37 -07:00
Dominik Röttsches
a5f6f869e8 Drop layout table if layout lookup accelerator allocation failed 
If the table is kept, when the table is present but only the accelerator
allocation failed, then we run into nullptr dereferences downstream in
hb_ot_map_t::apply when trying to access proxy.accels[i].

To fix this, instead of only setting lookup_count of accelerator_t
itself, drop the whole table to avoid hb-ot-map construction assuming
that the lookups will work correctly despite accelerator allocation
having failed.

Fixes:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24490
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24490
 2020-11-25 10:18:04 -08:00
David Corbett
b2e7bb2a7c Don’t map BCP 47 to coincidentally similar OT tag 2020-11-22 19:35:47 -08:00
David Corbett
e1df2c5277 Map ISO 639 code qul to language system tag 'QUH ' 2020-11-22 11:52:23 -07:00
Khaled Hosny
f579c66108 Mark variable unused 
Hopefully fixes build with newer ragel.

https://github.com/adrian-thurston/ragel/issues/56

Fixes https://github.com/harfbuzz/harfbuzz/issues/2752
 2020-11-21 08:41:06 -07:00
David Corbett
f83496a910 [use] Remove workaround for reserved code points 
See <https://github.com/microsoft/font-tools/issues/12>.
 2020-11-20 15:37:37 -07:00
David Corbett
17da41bd06 Update language system tag registry to OT 1.8.4 2020-11-18 11:13:35 -08:00
Simon Cozens
fd8f4ffcc6 Trace reorder, not normalize 2020-11-17 09:05:40 +00:00
Simon Cozens
2e0193d741 Add more cast spaces 2020-11-17 09:05:40 +00:00
Simon Cozens
4bb6d54e3b Missing cast 2020-11-17 09:05:40 +00:00
Simon Cozens
8e1bedc50b Keep phase names 2020-11-17 09:05:40 +00:00
Simon Cozens
428c111f13 Fix spacing around casts 2020-11-17 09:05:40 +00:00
Simon Cozens
f19018da41 Smaller issues from review 2020-11-17 09:05:40 +00:00
Simon Cozens
8b3b835a0a Trace normalization and preprocessing stages 2020-11-17 09:05:40 +00:00
Simon Cozens
b50099bff2 Trace reordering in pause functions 2020-11-17 09:05:40 +00:00
Fabrice Fontaine
0c3dcfae19 Merge remote-tracking branch 'upstream/master' 2020-11-17 07:31:07 +01:00
David Corbett
3bd43bd023 Map more ISO 15924 variants to hb_script_ts 2020-11-16 22:18:15 -08:00
David Corbett
27170e058d Fix names for language tag in gen-tag-table.py 
A BCP 47 language tag with both a script subtag and a region subtag
would be printed as a human-readable name in hb-ot-tag-table.hh as if it
only had its language subtag.
 2020-11-16 10:59:07 -08:00
David Corbett
49ebb9ebdd [use] Remove redundant O entries from the table 2020-10-17 22:07:34 +02:00
David Corbett
79fd5ce22e [use] Merge IND and Rsv classes into O 2020-10-17 22:07:34 +02:00
Behdad Esfahbod
cde2cf84c0 [use] Minor clean-up of unused categories 2020-10-17 11:22:19 -04:00
David Corbett
0792690b73 [use] Skip WJ and ZWJ when clustering 2020-10-16 22:39:46 -07:00
Laurenz
3fcf466b7b [hb-shape-fallback] Use signed int for correction 2020-10-16 17:57:38 -07:00
Behdad Esfahbod
77e704d1db [buffer] Add assert_unicode()/assert_glyphs() and use internally 2020-10-15 02:02:04 -06:00
Behdad Esfahbod
5ef0613909 [buffer] Add ensure_glyphs()/ensure_unicode() 
Use in deserialize. To be used more.
 2020-10-15 01:54:28 -06:00
Behdad Esfahbod
3232e6f2a9 [buffer] Add hb_buffer_has_positions() 
Fixes https://github.com/harfbuzz/harfbuzz/issues/2716
 2020-10-15 00:20:17 -06:00
David Corbett
dec52006d9 Map BCP 47 tags to all macrolanguages 
The general rule is that if a BCP 47 macrolanguage maps to an OpenType
language system tag, all its individual languages map to it too.
Previously, a tag like "prs" (Dari) would not map to the language system
tag ('FAR ') of its macrolanguage ("fa") because "prs" already has its
own language system tag ('DRI '). That exception has been removed: now
"prs" maps to 'DRI ' and falls back to 'FAR '.
 2020-10-11 11:38:40 -07:00
David Corbett
1d53268dfe Fix two-way mapping of "man" and 'MNK ' 2020-10-11 11:38:40 -07:00
David Corbett
ab38cf6746 Map hy-arevmda to 'HYE ' instead of HYE0 2020-10-11 11:38:40 -07:00
David Corbett
916c5a9007 Consistently emit BCP 47 subtag scope suffixes 2020-10-11 11:38:40 -07:00
Behdad Esfahbod
1c05f6789b [buffer] Increase work limits 
Our previous limits of 64 per input character was already hit
by David Corbett's under-development Duployan font.

Increase work limits by factor of 16, and number of glyphs by factor of 2.

Fixes https://github.com/harfbuzz/harfbuzz/issues/2707
 2020-10-11 12:28:25 -06:00
Behdad Esfahbod
b37edebfcb [buffer/deserialize] Do not clear() buffer upon content type mismatch 
We return false. I don't see reason to clear buffer.
 2020-10-09 22:27:56 -06:00
Behdad Esfahbod
c396e1600f [buffer/deserialize] Accept arbitrary glyph names 
Accepts escapes. Added TODO items for matching escaping in serialize().
 2020-10-09 22:27:56 -06:00
Behdad Esfahbod
4a4eebcf86 [buffer/serialize] Minor renames in Ragel machines 
As per my previous review on:
https://github.com/harfbuzz/harfbuzz/pull/2687
 2020-10-09 22:27:56 -06:00
Behdad Esfahbod
78fb6a11af Whitespace 2020-10-09 22:27:55 -06:00
Behdad Esfahbod
140552cec9 [buffer/serialize] Only serialize empty buffers of CONTENT_TYPE_INVALID 2020-10-09 22:27:55 -06:00
Behdad Esfahbod
8f5d8b155c [buffer] Buffer start <= end <= len requirement in (de-)serialize 2020-10-09 22:27:55 -06:00
Behdad Esfahbod
3b64122a7f [buffer] Fix immutable case with end_ptr==nullptr 2020-10-09 22:27:55 -06:00
Simon Cozens
7c0bc0bb92 Serialize invalid buffer to !! (text) or [] (json) 
There is no generic deserialize - you have to choose glyphs or unicode - so there is no way to deserialize this buffer.
 2020-10-09 22:27:55 -06:00
Simon Cozens
5bb88c4f45 Oops debug print 2020-10-09 22:27:55 -06:00
Simon Cozens
f56eb402f0 Immutable buffer fix 2020-10-09 22:27:55 -06:00
Simon Cozens
150f391438 Prohibit mixed glyphs/unicode buffers in deserialization 2020-10-09 22:27:55 -06:00
Simon Cozens
6b1726b6ef Typos 2020-10-09 22:27:55 -06:00
Simon Cozens
3d3c87e7e7 Put the flags back in and serialize clusters. 
Note that now JSON glyph buffers and Unicode buffers look very similar, except for the g/u property difference.
 2020-10-09 22:27:55 -06:00
Simon Cozens
c03a2001b2 Deserialization routines for Unicode buffers 2020-10-09 22:27:55 -06:00
Simon Cozens
c0716bb5dc Move delimiter addition into hb-buffer-serialize 2020-10-09 22:27:55 -06:00
Simon Cozens
36ede56962 Fix docs 
Note the delimiters stuff isn’t true yet, will be working on that
 2020-10-09 22:27:55 -06:00
Simon Cozens
bb7b634cd0 Simplify JSON unicode serialization 
It’s just an array of codepoints; no need to turn them into objects
 2020-10-09 22:27:55 -06:00
Simon Cozens
57a528ab2c Convert tabs to spaces 2020-10-09 22:27:55 -06:00
Simon Cozens
aff6a36266 Use auxbuffer for serialize_unicode_text 2020-10-09 22:27:55 -06:00