[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
New submission from Iñigo Serna : Currently,there is no a simple way in curses bindings to get the code associated with a key press of non ascii keystroke (f.e. ç) in terminals configured with UTF-8 encoding. getch returns the code for a wide character byte a byte. But ncurses library has a proper function to do it: get_wch. Patch against Python v2.6.2 to provide this missing get_wch method in the ncurses bindings. Include a test example and a patch to the documentation as well. More info and a partial solution without patching python curses module on this thread: http://groups.google.com/group/comp.lang.python/browse_thread/thread/67dce30f0a2742a6?fwc=2 -- components: Extension Modules messages: 91816 nosy: inigoserna severity: normal status: open title: Patch: new method get_wch for ncurses bindings: accept wide characters (unicode) type: feature request versions: Python 2.6, Python 2.7 ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Added patch for the documentation -- keywords: +patch Added file: http://bugs.python.org/file14753/curses.get_wch.patch ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Added test example -- Added file: http://bugs.python.org/file14754/test_get_wch.py ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Added missing file: patch against Python v2.6.2 -- Added file: http://bugs.python.org/file14755/_cursesmodule.get_wch.patch ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Added patch against Python v3.1.1. NOT TESTED! -- versions: +Python 3.1, Python 3.2 Added file: http://bugs.python.org/file14756/_cursesmodule.311.get_wch.patch ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Thanks for the pointer, haven't seen anything when I searched for get_wch. The patch provided here only adds this get_wch function, because as A.M. Kuchling explained in issue700921, it's possible to use wide chars now, the only feature missing is get_wch. -- ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue700921] Wide-character curses
Iñigo Serna added the comment: In issue6755 I provide a patch to support get_wch, which is the only wide chars related feature I miss in current bindings (as python v2.6.2 or v3.1.1). -- nosy: +inigoserna ___ Python tracker <http://bugs.python.org/issue700921> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Q. Why not change getch() to always use get_wch()? This could break backwards compatibility. There are some code out there that may use getch() to get the bytes stream one by one and build the wide char. In fact I'm using this trick to get unicode chars by now. Look the thread link in first comment to find the implementation I've developed for my app. Other people are using similar approaches too. Q. I think you also want fix getkey() / introduce get_wkey(). In my own experience get_wkey isn't be as useful when dealing with wide chars. But, of course, that's only my use cases. -- ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Iñigo Serna added the comment: Btw, I don't know if this is the best place to comment it but as it is somehow related with ncurses... Other functions I miss a lot are wcwidth() and wcswidth(). These functions return the real width (read, cells length in screen) for unicode strings. An example to clarify the issue: one simple Chinese character could need 2 cells on screen, thus len(chinese_unicode_string) won't return the real screen width needed to show the string. i.e., len(chinese_unicode_string) != wcswidth(chinese_unicode_string) Those functions are included into not so old glibc versions (2.2+?), at least on my Linux systems. Sadly enough, python doesn't bind them, afaik. I've tried ctypes but don't work for me (don't know the reason), so I've written some replacements. Please look at these files: * test_ucs2w.py: benchmarks to different implementations. Most of them, pure python. Please consider only ucs2w_1x, other are only experiments. * ucs2w.c: C extension implementation I think Python could benefit from having these functions in the standard library. Surely, most simple way should be to bind glibc functions, but don't know if they exist on other platforms such as MacOS X or Windows. Neither do I know where they fit... perhaps in unicodedata module. What do you think? who is the person to convince? (please, don't ask me to write a PEP, my English is not good enough). -- ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Changes by Iñigo Serna : Added file: http://bugs.python.org/file14782/test_ucs2w.py ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6755] Patch: new method get_wch for ncurses bindings: accept wide characters (unicode)
Changes by Iñigo Serna : Added file: http://bugs.python.org/file14783/ucs2w.c ___ Python tracker <http://bugs.python.org/issue6755> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
