mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-26 14:17:05 +08:00
58 lines
3.1 KiB
Plaintext
58 lines
3.1 KiB
Plaintext
|
Unicode is used to generate the unicode data in src/corelib/text/.
|
||
|
|
|
||
|
|
To update:
|
||
|
|
* Run `./update_ucd.sh $Version`. This automates the following steps:
|
||
|
|
* Find the data (UAX #44, UCD; not the XML version) at
|
||
|
|
https://www.unicode.org/Public/zipped/$Version/
|
||
|
|
* Unpack the zip file; for each file in data/, replace with the new
|
||
|
|
version; find the *BreakProperty.txt in auxiliary/ and emoji-data.txt
|
||
|
|
in emoji/.
|
||
|
|
* In tst_QTextBoundaryFinder's data/ sub-directory, update its files
|
||
|
|
from the auxiliary/ sub-directory of the UCD data.
|
||
|
|
* Download https://www.unicode.org/Public/idna/$Version/IdnaMappingTable.txt
|
||
|
|
and put it into data/.
|
||
|
|
* Download https://www.unicode.org/Public/idna/$Version/IdnaTestV2.txt
|
||
|
|
and put it into tests/auto/corelib/io/qurluts46/testdata.
|
||
|
|
* If needed, add an entry to enum QChar::UnicodeVersion for the new
|
||
|
|
Unicode version
|
||
|
|
* In that case, also update main.cpp's initAgeMap and DATA_VERSION_S*
|
||
|
|
to match
|
||
|
|
* Build this project. Its binary, unicode, ignores command-line
|
||
|
|
options and assumes it is being run from this directory. When run,
|
||
|
|
it produces lots of output. If it gets as far as updating
|
||
|
|
qunicodetables.cpp the output hopefully doesn't matter.
|
||
|
|
* It'll end prematurely with a qFatal() message if it needs updates,
|
||
|
|
either in main.cpp or in QChar:
|
||
|
|
* "unassigned or unhandled age value:" initAgeMap() and
|
||
|
|
QChar::UnicodeVersion;
|
||
|
|
* "Unhandled script property value:" initScriptMap(), QChar::Script,
|
||
|
|
qharfbuzzng.cpp's _qtscript_to_hbscript[] array and
|
||
|
|
qfontconfigdatabase.cpp's specialLanguages.
|
||
|
|
* "unassigned word break class:" enum WordBreakClass,
|
||
|
|
word_break_class_string and initWordBreak();
|
||
|
|
* Assertions or other qFatal()s may trigger: if so, study code and
|
||
|
|
understand what's more complicated about this update; talk to folk
|
||
|
|
named in the git logs, maybe push a WIP to gerrit to solicit
|
||
|
|
advice. Some bit-field may need to be expanded, for example. In some
|
||
|
|
cases QChar may need additions to some of its enums.
|
||
|
|
* Build with the modified code, fix any compilation issues, make check
|
||
|
|
in suitable directories, including tst_QTextBoundaryFinder.
|
||
|
|
* That may have updated qtbase/src/corelib/text/qunicodetables.cpp; if
|
||
|
|
so the update matters; be sure to commit the changes to data/ at the
|
||
|
|
same time and update text/qt_attribution.json to match; use the UCD
|
||
|
|
Revision number, rather than the Unicode standard number, as the
|
||
|
|
Version, for all that qunicodetables.cpp uses the latter (see the
|
||
|
|
'UAX #44, UCD' page linked from https://www.unicode.org/ucd/ for the
|
||
|
|
table with this).
|
||
|
|
* If there are enum additions in qchar.h (public API), be sure to also
|
||
|
|
update the documentation in qchar.cpp for each affected enum,
|
||
|
|
respecting the existing ordering.
|
||
|
|
* If you don't normally build in the source tree, remember to delete
|
||
|
|
qtbase/.qmake.stash while you're cleaning up.
|
||
|
|
|
||
|
|
The script writingSystems.sh generates a list of writing systems,
|
||
|
|
ostensibly as a the basis for updating QFontDatabase::WritingSystem
|
||
|
|
enum; however, the Release 20 output of it contains many more writing
|
||
|
|
systems than are present in that enum, suggesting it has not been run
|
||
|
|
in a very long time. Further research needed.
|