* [fontloader] cached fonts have invalid tounicode values
@ 2013-06-28 0:14 Akira Kakuto
2013-06-28 11:12 ` Philipp Gesang
0 siblings, 1 reply; 5+ messages in thread
From: Akira Kakuto @ 2013-06-28 0:14 UTC (permalink / raw)
To: ntg-context
Hi Philipp,
> I’ve traced it to luatex-basics-gen.lua.
luaotfload-basics-gen.lua and luaotfload-merged.lua?
Thank you very much.
Akira
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* Re: [fontloader] cached fonts have invalid tounicode values
2013-06-28 0:14 [fontloader] cached fonts have invalid tounicode values Akira Kakuto
@ 2013-06-28 11:12 ` Philipp Gesang
2013-06-28 11:33 ` Hans Hagen
0 siblings, 1 reply; 5+ messages in thread
From: Philipp Gesang @ 2013-06-28 11:12 UTC (permalink / raw)
To: mailing list for ConTeXt users
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···<date: 2013-06-28, Friday>···<from: Akira Kakuto>···
> Hi Philipp,
>
> >I’ve traced it to luatex-basics-gen.lua.
>
> luaotfload-basics-gen.lua and luaotfload-merged.lua?
The latter is generated from the former, so yes. For a hot fix it
suffices to patch the merged file. Anyways, luaotfload will be
updated once Hans pushes a fix upstream.
Best,
Philipp
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* Re: [fontloader] cached fonts have invalid tounicode values
2013-06-28 11:12 ` Philipp Gesang
@ 2013-06-28 11:33 ` Hans Hagen
0 siblings, 0 replies; 5+ messages in thread
From: Hans Hagen @ 2013-06-28 11:33 UTC (permalink / raw)
To: ntg-context
On 6/28/2013 1:12 PM, Philipp Gesang wrote:
> ···<date: 2013-06-28, Friday>···<from: Akira Kakuto>···
>
>> Hi Philipp,
>>
>>> I’ve traced it to luatex-basics-gen.lua.
>>
>> luaotfload-basics-gen.lua and luaotfload-merged.lua?
>
> The latter is generated from the former, so yes. For a hot fix it
> suffices to patch the merged file. Anyways, luaotfload will be
> updated once Hans pushes a fix upstream.
but be careful with that ... there will be some experimental code in
coming betas that won't effect context but will probably make there way
into generic some time later, when found ok
Hans
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* [fontloader] cached fonts have invalid tounicode values
@ 2013-06-27 9:09 Philipp Gesang
2013-06-27 20:08 ` Philipp Gesang
0 siblings, 1 reply; 5+ messages in thread
From: Philipp Gesang @ 2013-06-27 9:09 UTC (permalink / raw)
To: ConTeXt ML
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Hi Hans,
this has been reported by Dohyun Kim [1]: the generic fontloader
(not Context) serializes some tounicode values as Lua numbers,
not strings. When re-reading the cache file the values lose all
leading zeros, so they are no longer well-formed UTF-16BE.
...
["tounicode"]={
[2329]="E001",
...
[2384]="0063006B", -- <-- correct
[2385]=00630068, -- <-- invalid
[2386]=00740074,
[2387]=00630074,
[2388]="017F0069",
...
Best regards,
Philipp
[1] https://github.com/lualatex/luaotfload/issues/102
(Kim’s example works with luatex-plain if you comment out the
``\input luaotfload.sty`` line.)
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [fontloader] cached fonts have invalid tounicode values
2013-06-27 9:09 Philipp Gesang
@ 2013-06-27 20:08 ` Philipp Gesang
0 siblings, 0 replies; 5+ messages in thread
From: Philipp Gesang @ 2013-06-27 20:08 UTC (permalink / raw)
To: ConTeXt ML
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···<date: 2013-06-27, Thursday>···<from: Philipp Gesang>···
> Hi Hans,
>
> this has been reported by Dohyun Kim [1]: the generic fontloader
> (not Context) serializes some tounicode values as Lua numbers,
> not strings. When re-reading the cache file the values lose all
> leading zeros, so they are no longer well-formed UTF-16BE.
>
> ...
> ["tounicode"]={
> [2329]="E001",
> ...
> [2384]="0063006B", -- <-- correct
> [2385]=00630068, -- <-- invalid
> [2386]=00740074,
> [2387]=00630074,
> [2388]="017F0069",
> ...
>
> Best regards,
> Philipp
>
> [1] https://github.com/lualatex/luaotfload/issues/102
> (Kim’s example works with luatex-plain if you comment out the
> ``\input luaotfload.sty`` line.)
I’ve traced it to luatex-basics-gen.lua. The cache is compiled
with the spec “{reduce = true}” which causes values to be
analyzed and “tonumber()”ed. If I unset the reduce flag, the
values turn out correct in the PDF.
Best,
Philipp
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2013-06-28 0:14 [fontloader] cached fonts have invalid tounicode values Akira Kakuto
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