[Pkg-fonts-devel] Bug#853921: ttx and grep result for DroidSansFallback(Full)?.ttf

[Cyril Brulebois]

Hi,

victory <victory.deb at gmail.com> (2017-02-03):
> added testing src apt line, apt update, apt-get source ..., tar zxf ...
> $ ttx DroidSansFallback.ttf
> $ ttx DroidSansFallbackFull.ttf
> these 2 generate [filename].ttx
> 
> (just FYI, used letters (in ko) other than 7-bit are in 0xac00-0xd790 range)
> 
> $ grep Hangul DroidSansFallback.ttx prints 22344 lines
>       <map code="0xac00" name="uniAC00"/><!-- Hangul Syllable -->
>       <map code="0xac01" name="uniAC01"/><!-- Hangul Syllable -->
>       <map code="0xac02" name="uniAC02"/><!-- Hangul Syllable -->
>       <map code="0xac03" name="uniAC03"/><!-- Hangul Syllable -->
>       <map code="0xac04" name="uniAC04"/><!-- Hangul Syllable -->
>       <map code="0xac05" name="uniAC05"/><!-- Hangul Syllable -->
> ...
>       <map code="0xd79e" name="uniD79E"/><!-- Hangul Syllable -->
>       <map code="0xd79f" name="uniD79F"/><!-- Hangul Syllable -->
>       <map code="0xd7a0" name="uniD7A0"/><!-- Hangul Syllable -->
>       <map code="0xd7a1" name="uniD7A1"/><!-- Hangul Syllable -->
>       <map code="0xd7a2" name="uniD7A2"/><!-- Hangul Syllable -->
>       <map code="0xd7a3" name="uniD7A3"/><!-- Hangul Syllable -->
> 
> $ grep Hangul DroidSansFallbackFull.ttx prints only 6 lines:
>       <map code="0xac00" name="uniAC00"/><!-- Hangul Syllable -->
>       <map code="0xd7a2" name="uniD7A2"/><!-- Hangul Syllable -->
>       <map code="0xd7a3" name="uniD7A3"/><!-- Hangul Syllable -->
>       <map code="0xac00" name="uniAC00"/><!-- Hangul Syllable -->
>       <map code="0xd7a2" name="uniD7A2"/><!-- Hangul Syllable -->
>       <map code="0xd7a3" name="uniD7A3"/><!-- Hangul Syllable -->
> 
> so, the latter has only 1 Hangul glyph (0xac00, 가) to be used in d-i
> (0xd7a2 and 0xd7a3 are not used in d-i)

I think this matches what happened upstream (warning, big repository:
https://android.googlesource.com/platform/frameworks/base):
| commit 562c45cc841681ed80d4e94515b23c28eb60eae4
| Author: Bart Sears <bsears at google.com>
| Date:   Mon Sep 24 00:32:57 2012 -0700
| 
|     Updated versions of DroidSansFallback
|     
|     Latest versions of DroidSansFallback from Monotype.
|     
|     The DroidSansFallback.ttf file has some additional glyphs and
|     glyph fixes (including a fix for bug 6723057 and will likely fix
|     bug 6629748).  It continues to cover Korean Hangul but does not
|     cover CJK Ext A (for space reasons on small system image devices).
|     The DroidSansFallbackFull.ttf file has the bug fixes listed and
|     also removes the Korean Hangul because we are now going to use
|     NanumGothic for Korean (NanumGothic.ttf is added in a separate
|     CL in the external/naver-fonts directory).
|     
|     The falback_fonts.xml file has been modified to add NanumGothic.ttf
|     before DroidSansFallback.
|     
|     Bug: 4531601
|     Bug: 6723057
|     Bug: 6629748
|     Change-Id: I670d33078b4a97c4eda00fc2323be187696e927a

even if how tags/versions in that repository match fonts-android's isn't
too clear to me.

Anyway, inspired by the commit message above, I've just built a d-i
image with an extra /usr/share/fonts/truetype/nanum/NanumGothic.ttf
taken from the fonts-nanum package, and it seems to work fine! (For
someone who only knows what Korean glyphs can look like…) I've attached
a screenshot, feel free to double check.

I think I'll send a patch against src:fonts-nanum to request a udeb
addition, then add it to src:debian-installer. And close the bug report
against src:fonts-android.

Any comment/objection?


KiBi.
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