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https://github.com/EDCD/EDMarketConnector.git
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Add l10n.Locale object
Provides stringFromNumber() and numberFromString()
This commit is contained in:
Jonathan Harris
parent
e95034565f
commit
e11224ea27
@ -39,6 +39,8 @@ If you want your plugin to be configurable via the GUI you can define a frame (p
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You can use `set()`, `get()` and `getint()` from EDMC's config object to retrieve your plugin's settings in a platform-independent way.
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Use `numberFromString()` from EDMC's Locale object to parse input numbers in a locale-independent way.
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```
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import Tkinter as tk
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import myNotebook as nb
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@ -73,6 +75,8 @@ def prefs_changed():
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You can also have your plugin add an item to the EDMC main window and update it if you need to from your event hooks. This works in the same way as `plugin_prefs()`. For a simple one-line item return a tk.Label widget or a pair of widgets as a tuple. For a more complicated item create a ttk.Frame widget and populate it with other ttk widgets.
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You can use `stringFromNumber()` from EDMC's Locale object to format numbers in a locale-independent way.
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```
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this = sys.modules[__name__] # For holding module globals
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150
l10n.py
150
l10n.py
@ -5,6 +5,7 @@
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import codecs
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from collections import OrderedDict
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import numbers
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import os
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from os.path import basename, dirname, isfile, join, normpath
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import re
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@ -12,11 +13,37 @@ import sys
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from sys import platform
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import __builtin__
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import locale
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locale.setlocale(locale.LC_ALL, '')
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# Language name
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LANGUAGE_ID = '!Language'
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if platform == 'darwin':
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from Foundation import NSLocale, NSNumberFormatter, NSNumberFormatterDecimalStyle
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elif platform == 'win32':
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import ctypes
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from ctypes.wintypes import *
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# https://msdn.microsoft.com/en-us/library/windows/desktop/dd318124%28v=vs.85%29.aspx
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MUI_LANGUAGE_ID = 4
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MUI_LANGUAGE_NAME = 8
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GetUserPreferredUILanguages = ctypes.windll.kernel32.GetUserPreferredUILanguages
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GetUserPreferredUILanguages.argtypes = [ DWORD, ctypes.POINTER(ctypes.c_ulong), LPCVOID, ctypes.POINTER(ctypes.c_ulong) ]
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GetUserPreferredUILanguages.restype = BOOL
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LOCALE_NAME_USER_DEFAULT = None
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GetNumberFormatEx = ctypes.windll.kernel32.GetNumberFormatEx
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GetNumberFormatEx.argtypes = [LPCWSTR, DWORD, LPCWSTR, LPCVOID, LPWSTR, ctypes.c_int]
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GetNumberFormatEx.restype = ctypes.c_int
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else: # POSIX
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import locale
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class Translations:
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FALLBACK = 'en' # strings in this code are in English
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@ -40,7 +67,7 @@ class Translations:
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if not lang:
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# Choose the default language
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for preferred in self.preferred():
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for preferred in Locale.preferredLanguages():
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components = preferred.split('-')
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if preferred in available:
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lang = preferred
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@ -97,46 +124,6 @@ class Translations:
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key=lambda x: x[1])) # Sort by name
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return names
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# Returns list of preferred language codes in RFC4646 format i.e. "lang[-script][-region]"
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# Where lang is a lowercase 2 alpha ISO 639-1 or 3 alpha ISO 639-2 code,
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# script is a capitalized 4 alpha ISO 15924 code and region is an uppercase 2 alpha ISO 3166 code
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def preferred(self):
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if platform=='darwin':
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from Foundation import NSLocale
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return NSLocale.preferredLanguages() or None
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elif platform=='win32':
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def wszarray_to_list(array):
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offset = 0
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while offset < len(array):
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sz = ctypes.wstring_at(ctypes.addressof(array) + offset*2)
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if sz:
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yield sz
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offset += len(sz)+1
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else:
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break
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# https://msdn.microsoft.com/en-us/library/windows/desktop/dd318124%28v=vs.85%29.aspx
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import ctypes
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MUI_LANGUAGE_ID = 4
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MUI_LANGUAGE_NAME = 8
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GetUserPreferredUILanguages = ctypes.windll.kernel32.GetUserPreferredUILanguages
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num = ctypes.c_ulong()
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size = ctypes.c_ulong(0)
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if (GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, ctypes.byref(num), None, ctypes.byref(size)) and size.value):
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buf = ctypes.create_unicode_buffer(size.value)
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if GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, ctypes.byref(num), ctypes.byref(buf), ctypes.byref(size)):
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return wszarray_to_list(buf)
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return None
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else: # POSIX
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import locale
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lang = locale.getdefaultlocale()[0]
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return lang and [lang.replace('_','-')]
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def respath(self):
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if getattr(sys, 'frozen', False):
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if platform=='darwin':
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@ -155,6 +142,86 @@ class Translations:
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return codecs.open(join(self.respath(), '%s.strings' % lang), 'r', 'utf-8')
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class Locale:
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def __init__(self):
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if platform=='darwin':
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self.int_formatter = NSNumberFormatter.alloc().init()
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self.int_formatter.setNumberStyle_(NSNumberFormatterDecimalStyle)
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self.float_formatter = NSNumberFormatter.alloc().init()
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self.float_formatter.setNumberStyle_(NSNumberFormatterDecimalStyle)
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self.float_formatter.setMinimumFractionDigits_(5)
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self.float_formatter.setMaximumFractionDigits_(5)
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def stringFromNumber(self, number, decimals=None):
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# Uses the current system locale, irrespective of language choice.
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# Unless `decimals` is specified, the number will be formatted with 5 decimal
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# places if the input is a float, or none if the input is an int.
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if decimals == 0 and not isinstance(number, numbers.Integral):
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number = int(round(number))
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if platform == 'darwin':
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if not decimals and isinstance(number, numbers.Integral):
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return self.int_formatter.stringFromNumber_(number)
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else:
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self.float_formatter.setMinimumFractionDigits_(decimals or 5)
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self.float_formatter.setMaximumFractionDigits_(decimals or 5)
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return self.float_formatter.stringFromNumber_(number)
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else:
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if not decimals and isinstance(number, numbers.Integral):
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return locale.format('%d', number, True)
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else:
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return locale.format('%.*f', (decimals or 5, number), True)
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def numberFromString(self, string):
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# Uses the current system locale, irrespective of language choice.
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# Returns None if the string is not parsable, otherwise an integer or float.
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if platform=='darwin':
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return self.float_formatter.numberFromString_(string)
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else:
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try:
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return locale.atoi(string)
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except:
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try:
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return locale.atof(string)
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except:
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return None
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# Returns list of preferred language codes in RFC4646 format i.e. "lang[-script][-region]"
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# Where lang is a lowercase 2 alpha ISO 639-1 or 3 alpha ISO 639-2 code,
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# script is a capitalized 4 alpha ISO 15924 code and region is an uppercase 2 alpha ISO 3166 code
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def preferredLanguages(self):
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if platform=='darwin':
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return NSLocale.preferredLanguages() or None
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elif platform=='win32':
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def wszarray_to_list(array):
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offset = 0
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while offset < len(array):
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sz = ctypes.wstring_at(ctypes.addressof(array) + offset*2)
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if sz:
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yield sz
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offset += len(sz)+1
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else:
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break
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num = ctypes.c_ulong()
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size = ctypes.c_ulong(0)
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if (GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, ctypes.byref(num), None, ctypes.byref(size)) and size.value):
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buf = ctypes.create_unicode_buffer(size.value)
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if GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, ctypes.byref(num), ctypes.byref(buf), ctypes.byref(size)):
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return wszarray_to_list(buf)
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return None
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else: # POSIX
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lang = locale.getlocale()[0]
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return lang and [lang.replace('_','-')]
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# singleton
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Locale = Locale()
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# generate template strings file - like xgettext
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# parsing is limited - only single ' or " delimited strings, and only one string per line
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if __name__ == "__main__":
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@ -178,3 +245,4 @@ if __name__ == "__main__":
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template.write('/* %s */\n' % (seen[thing]))
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template.write('"%s" = "%s";\n\n' % (thing, thing))
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template.close()
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