I18n:Updating Unicode version: Difference between revisions
(Updated for version 8.0 of Unicode) |
(Add CaseFolding.txt to the documentation for SpiderMonkey's Unicode support) |
||
| (One intermediate revision by one other user not shown) | |||
| Line 37: | Line 37: | ||
We require Unicode data files from http://www.unicode.org/Public/UNIDATA/<br> | We require Unicode data files from http://www.unicode.org/Public/UNIDATA/<br> | ||
As well as UnicodeData.txt downloaded in the previous | As well as UnicodeData.txt downloaded in the previous step, we need | ||
* SpecialCasing.txt | * SpecialCasing.txt | ||
| Line 65: | Line 65: | ||
* move into <code>js/src/vm/</code> | * move into <code>js/src/vm/</code> | ||
* run <code>python ./make_unicode.py</code> | * run <code>python ./make_unicode.py</code> | ||
* verify that <code>UnicodeData.txt</code> and the derived files were correctly updated | * verify that <code>UnicodeData.txt</code>, <code>CaseFolding.txt</code>, and the derived files were correctly updated | ||
Note that running <code>python ./make_unicode.py | Note that running <code>python ./make_unicode.py FILENAME1 FILENAME2</code> instead uses <code>FILENAME1</code> as a <code>UnicodeData.txt</code> and <code>FILENAME2</code> as a <code>CaseFolding.txt</code>, if you ever want to generate new data without overwriting the current <code>js/src/vm/UnicodeData.txt</code> and <code>js/src/vm/CaseFolding.txt</code>. | ||
Latest revision as of 10:26, 28 June 2016
This document describes the process of updating the files in the Mozilla codebase that are generated from Unicode data files.
Unicode properties
To regenerate the tables in nsUnicodePropertyData.cpp:
Download the current Unicode data files from http://www.unicode.org/Public/UNIDATA/
NB: not all the files are actually needed; currently, we require
- UnicodeData.txt
- Scripts.txt
- EastAsianWidth.txt
- BidiMirroring.txt
- HangulSyllableType.txt
- SpecialCasing.txt
- ReadMe.txt (to record version/date of the UCD)
- Unihan_Variants.txt (from Unihan.zip)
though this may change if we find a need for additional properties.
The Unicode data files listed above should be together in one directory.
We also require the file http://www.unicode.org/Public/security/latest/xidmodifications.txt
This file should be in a sub-directory "security" immediately below the directory containing the other Unicode data files.
We also require the latest data file for UTR50, currently revision-13: http://www.unicode.org/Public/vertical/revision-13/VerticalOrientation-13.txt
This file should be in a sub-directory "vertical" immediately below the directory containing the other Unicode data files.
From intl/unicharutil/util, run the command:
perl ../tools/genUnicodePropertyData.pl /path/to/hb-common.h /path/to/UCD-directory
(where hb-common.h is found in the gfx/harfbuzz/src directory).
This will generate (or overwrite!) the files
- nsUnicodePropertyData.cpp
- nsUnicodeScriptCodes.h
in the current directory.
Casing
We require Unicode data files from http://www.unicode.org/Public/UNIDATA/
As well as UnicodeData.txt downloaded in the previous step, we need
- SpecialCasing.txt
From intl/unichar/util, run the command:
perl ../tools/genSpecialCasingData.pl /path/to/UCD-directory/UnicodeData.txt /path/to/UCD-directory/SpecialCasing.txt > nsSpecialCasingData.cpp
This will generate (or overwrite!) the files
- nsSpecialCasingData.cpp
- all-lower-ref.html
- all-lower.html
- all-title-ref.html
- all-title.html
- all-upper-ref.html
- all-upper.html
in the current directory
Then move the six *.html files to layout/reftests/text-transform
Normalization
Currently our normalization data is frozen at Unicode 3.2 to conform to RFC 3454 (Stringprep), see Bug 728180
JavaScript Unicode support
To update SpiderMonkey's Unicode support:
- move into
js/src/vm/ - run
python ./make_unicode.py - verify that
UnicodeData.txt,CaseFolding.txt, and the derived files were correctly updated
Note that running python ./make_unicode.py FILENAME1 FILENAME2 instead uses FILENAME1 as a UnicodeData.txt and FILENAME2 as a CaseFolding.txt, if you ever want to generate new data without overwriting the current js/src/vm/UnicodeData.txt and js/src/vm/CaseFolding.txt.