babel/old/babel-test: babel/numbers.py annotate

annotate babel/numbers.py @ 530:85e1beadacb0

Update the copyright line.

author	jruigrok
date	Sat, 05 Mar 2011 15:22:28 +0000
parents	3d8e87169896
children

rev	line source
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	1 # -- coding: utf-8 --
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	2 #
530 85e1beadacb0 Update the copyright line. jruigrok parents: 520 diff changeset	3 # Copyright (C) 2007-2011 Edgewall Software
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	4 # All rights reserved.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	5 #
245 be0c679d48c5 Revert accidential change of file header in [260]. cmlenz parents: 244 diff changeset	6 # This software is licensed as described in the file COPYING, which
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	7 # you should have received as part of this distribution. The terms
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	8 # are also available at http://babel.edgewall.org/wiki/License.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	9 #
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	10 # This software consists of voluntary contributions made by many
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	11 # individuals. For the exact contribution history, see the revision
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	12 # history and logs, available at http://babel.edgewall.org/log/.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	13
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	14 """Locale dependent formatting and parsing of numeric data.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	15
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	16 The default locale for the functions in this module is determined by the
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	17 following environment variables, in that order:
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	18
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	19 * ``LC_NUMERIC``,
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	20 * ``LC_ALL``, and
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	21 * ``LANG``
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	22 """
246 e8bfc65444f3 Updated TODO-items in number.py. jonas parents: 245 diff changeset	23 # TODO:
e8bfc65444f3 Updated TODO-items in number.py. jonas parents: 245 diff changeset	24 # Padding and rounding increments in pattern:
e8bfc65444f3 Updated TODO-items in number.py. jonas parents: 245 diff changeset	25 # - http://www.unicode.org/reports/tr35/ (Appendix G.6)
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	26 import math
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	27 import re
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	28 try:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	29 from decimal import Decimal
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	30 have_decimal = True
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	31 except ImportError:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	32 have_decimal = False
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	33
72 4dcdb1d367ec More explicit module-level function names in `babel.core`. Added `Locale.negotiate` class method. cmlenz parents: 50 diff changeset	34 from babel.core import default_locale, Locale
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	35
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	36 __all__ = ['format_number', 'format_decimal', 'format_currency',
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	37 'format_percent', 'format_scientific', 'parse_number',
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	38 'parse_decimal', 'NumberFormatError']
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	39 __docformat__ = 'restructuredtext en'
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	40
72 4dcdb1d367ec More explicit module-level function names in `babel.core`. Added `Locale.negotiate` class method. cmlenz parents: 50 diff changeset	41 LC_NUMERIC = default_locale('LC_NUMERIC')
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	42
385 cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	43 def get_currency_name(currency, locale=LC_NUMERIC):
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	44 """Return the name used by the locale for the specified currency.
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	45
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	46 >>> get_currency_name('USD', 'en_US')
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	47 u'US Dollar'
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	48
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	49 :param currency: the currency code
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	50 :param locale: the `Locale` object or locale identifier
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	51 :return: the currency symbol
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	52 :rtype: `unicode`
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	53 :since: version 0.9.4
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	54 """
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	55 return Locale.parse(locale).currencies.get(currency, currency)
cd8761c6f1a6 Improve CLDR import of currency-related data to ignore unsupported features such as symbol choice patterns and pluralized display names. See #93. cmlenz parents: 375 diff changeset	56
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	57 def get_currency_symbol(currency, locale=LC_NUMERIC):
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	58 """Return the symbol used by the locale for the specified currency.
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	59
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	60 >>> get_currency_symbol('USD', 'en_US')
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	61 u'$'
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	62
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	63 :param currency: the currency code
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	64 :param locale: the `Locale` object or locale identifier
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	65 :return: the currency symbol
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	66 :rtype: `unicode`
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	67 """
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	68 return Locale.parse(locale).currency_symbols.get(currency, currency)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	69
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	70 def get_decimal_symbol(locale=LC_NUMERIC):
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	71 """Return the symbol used by the locale to separate decimal fractions.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	72
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	73 >>> get_decimal_symbol('en_US')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	74 u'.'
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	75
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	76 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	77 :return: the decimal symbol
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	78 :rtype: `unicode`
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	79 """
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	80 return Locale.parse(locale).number_symbols.get('decimal', u'.')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	81
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	82 def get_plus_sign_symbol(locale=LC_NUMERIC):
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	83 """Return the plus sign symbol used by the current locale.
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	84
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	85 >>> get_plus_sign_symbol('en_US')
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	86 u'+'
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	87
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	88 :param locale: the `Locale` object or locale identifier
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	89 :return: the plus sign symbol
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	90 :rtype: `unicode`
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	91 """
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	92 return Locale.parse(locale).number_symbols.get('plusSign', u'+')
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	93
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	94 def get_minus_sign_symbol(locale=LC_NUMERIC):
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	95 """Return the plus sign symbol used by the current locale.
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	96
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	97 >>> get_minus_sign_symbol('en_US')
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	98 u'-'
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	99
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	100 :param locale: the `Locale` object or locale identifier
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	101 :return: the plus sign symbol
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	102 :rtype: `unicode`
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	103 """
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	104 return Locale.parse(locale).number_symbols.get('minusSign', u'-')
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	105
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	106 def get_exponential_symbol(locale=LC_NUMERIC):
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	107 """Return the symbol used by the locale to separate mantissa and exponent.
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	108
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	109 >>> get_exponential_symbol('en_US')
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	110 u'E'
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	111
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	112 :param locale: the `Locale` object or locale identifier
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	113 :return: the exponential symbol
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	114 :rtype: `unicode`
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	115 """
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	116 return Locale.parse(locale).number_symbols.get('exponential', u'E')
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	117
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	118 def get_group_symbol(locale=LC_NUMERIC):
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	119 """Return the symbol used by the locale to separate groups of thousands.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	120
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	121 >>> get_group_symbol('en_US')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	122 u','
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	123
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	124 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	125 :return: the group symbol
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	126 :rtype: `unicode`
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	127 """
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	128 return Locale.parse(locale).number_symbols.get('group', u',')
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	129
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	130 def format_number(number, locale=LC_NUMERIC):
435 22965265f699 Add extra doctest for formatting a number in de_DE since it uses a jruigrok parents: 434 diff changeset	131 u"""Return the given number formatted for a specific locale.
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	132
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	133 >>> format_number(1099, locale='en_US')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	134 u'1,099'
435 22965265f699 Add extra doctest for formatting a number in de_DE since it uses a jruigrok parents: 434 diff changeset	135 >>> format_number(1099, locale='de_DE')
437 9c3db8cfa216 Revert part of the commits with relation to the de locale's use of \xa0 as jruigrok parents: 435 diff changeset	136 u'1.099'
435 22965265f699 Add extra doctest for formatting a number in de_DE since it uses a jruigrok parents: 434 diff changeset	137
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	138
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	139 :param number: the number to format
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	140 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	141 :return: the formatted number
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	142 :rtype: `unicode`
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	143 """
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	144 # Do we really need this one?
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	145 return format_decimal(number, locale=locale)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	146
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	147 def format_decimal(number, format=None, locale=LC_NUMERIC):
434 8f50e65273e6 Adjust tests to match the data in CLDR: German doesn't use a . as thousands jruigrok parents: 414 diff changeset	148 u"""Return the given decimal number formatted for a specific locale.
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	149
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	150 >>> format_decimal(1.2345, locale='en_US')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	151 u'1.234'
50 fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	152 >>> format_decimal(1.2346, locale='en_US')
fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	153 u'1.235'
fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	154 >>> format_decimal(-1.2346, locale='en_US')
fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	155 u'-1.235'
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	156 >>> format_decimal(1.2345, locale='sv_SE')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	157 u'1,234'
437 9c3db8cfa216 Revert part of the commits with relation to the de locale's use of \xa0 as jruigrok parents: 435 diff changeset	158 >>> format_decimal(1.2345, locale='de')
9c3db8cfa216 Revert part of the commits with relation to the de locale's use of \xa0 as jruigrok parents: 435 diff changeset	159 u'1,234'
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	160
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	161 The appropriate thousands grouping and the decimal separator are used for
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	162 each locale:
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	163
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	164 >>> format_decimal(12345.5, locale='en_US')
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	165 u'12,345.5'
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	166
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	167 :param number: the number to format
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	168 :param format:
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	169 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	170 :return: the formatted decimal number
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	171 :rtype: `unicode`
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	172 """
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	173 locale = Locale.parse(locale)
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	174 if not format:
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	175 format = locale.decimal_formats.get(format)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	176 pattern = parse_pattern(format)
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	177 return pattern.apply(number, locale)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	178
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	179 def format_currency(number, currency, format=None, locale=LC_NUMERIC):
133 7d3d03855980 Minor doc fixes. cmlenz parents: 127 diff changeset	180 u"""Return formatted currency value.
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	181
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	182 >>> format_currency(1099.98, 'USD', locale='en_US')
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	183 u'$1,099.98'
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	184 >>> format_currency(1099.98, 'USD', locale='es_CO')
375 369300a7ebd3 Implement support for aliases in the CLDR data. Closes #68. Also, update to CLDR 1.6, and a much improved `dump_data` script. cmlenz parents: 357 diff changeset	185 u'US$\\xa01.099,98'
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	186 >>> format_currency(1099.98, 'EUR', locale='de_DE')
437 9c3db8cfa216 Revert part of the commits with relation to the de locale's use of \xa0 as jruigrok parents: 435 diff changeset	187 u'1.099,98\\xa0\\u20ac'
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	188
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	189 The pattern can also be specified explicitly:
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	190
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	191 >>> format_currency(1099.98, 'EUR', u'\xa4\xa4 #,##0.00', locale='en_US')
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	192 u'EUR 1,099.98'
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	193
26 710090104678 * Reduce size of locale data pickles by only storing the data provided by each locale itself, and merging inherited data at runtime. cmlenz parents: 22 diff changeset	194 :param number: the number to format
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	195 :param currency: the currency code
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	196 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	197 :return: the formatted currency value
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	198 :rtype: `unicode`
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	199 """
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	200 locale = Locale.parse(locale)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	201 if not format:
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	202 format = locale.currency_formats.get(format)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	203 pattern = parse_pattern(format)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	204 return pattern.apply(number, locale, currency=currency)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	205
26 710090104678 * Reduce size of locale data pickles by only storing the data provided by each locale itself, and merging inherited data at runtime. cmlenz parents: 22 diff changeset	206 def format_percent(number, format=None, locale=LC_NUMERIC):
101 1312ad6b624d Add wrapper class bundling the various formatting functions bound to a specific locale and time-zone. cmlenz parents: 72 diff changeset	207 """Return formatted percent value for a specific locale.
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	208
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	209 >>> format_percent(0.34, locale='en_US')
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	210 u'34%'
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	211 >>> format_percent(25.1234, locale='en_US')
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	212 u'2,512%'
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	213 >>> format_percent(25.1234, locale='sv_SE')
233 bc22f5aef216 Upgraded to CLDR 1.5 and improved timezone formatting. cmlenz parents: 218 diff changeset	214 u'2\\xa0512\\xa0%'
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	215
126 0733e852a9e9 Add test for permille number format. cmlenz parents: 125 diff changeset	216 The format pattern can also be specified explicitly:
0733e852a9e9 Add test for permille number format. cmlenz parents: 125 diff changeset	217
0733e852a9e9 Add test for permille number format. cmlenz parents: 125 diff changeset	218 >>> format_percent(25.1234, u'#,##0\u2030', locale='en_US')
0733e852a9e9 Add test for permille number format. cmlenz parents: 125 diff changeset	219 u'25,123\u2030'
0733e852a9e9 Add test for permille number format. cmlenz parents: 125 diff changeset	220
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	221 :param number: the percent number to format
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	222 :param format:
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	223 :param locale: the `Locale` object or locale identifier
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	224 :return: the formatted percent number
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	225 :rtype: `unicode`
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	226 """
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	227 locale = Locale.parse(locale)
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	228 if not format:
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	229 format = locale.percent_formats.get(format)
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	230 pattern = parse_pattern(format)
26 710090104678 * Reduce size of locale data pickles by only storing the data provided by each locale itself, and merging inherited data at runtime. cmlenz parents: 22 diff changeset	231 return pattern.apply(number, locale)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	232
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	233 def format_scientific(number, format=None, locale=LC_NUMERIC):
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	234 """Return value formatted in scientific notation for a specific locale.
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	235
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	236 >>> format_scientific(10000, locale='en_US')
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	237 u'1E4'
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	238
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	239 The format pattern can also be specified explicitly:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	240
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	241 >>> format_scientific(1234567, u'##0E00', locale='en_US')
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	242 u'1.23E06'
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	243
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	244 :param number: the number to format
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	245 :param format:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	246 :param locale: the `Locale` object or locale identifier
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	247 :return: value formatted in scientific notation.
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	248 :rtype: `unicode`
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	249 """
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	250 locale = Locale.parse(locale)
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	251 if not format:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	252 format = locale.scientific_formats.get(format)
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	253 pattern = parse_pattern(format)
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	254 return pattern.apply(number, locale)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	255
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	256
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	257 class NumberFormatError(ValueError):
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	258 """Exception raised when a string cannot be parsed into a number."""
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	259
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	260
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	261 def parse_number(string, locale=LC_NUMERIC):
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	262 """Parse localized number string into a long integer.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	263
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	264 >>> parse_number('1,099', locale='en_US')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	265 1099L
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	266 >>> parse_number('1.099', locale='de_DE')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	267 1099L
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	268
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	269 When the given string cannot be parsed, an exception is raised:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	270
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	271 >>> parse_number('1.099,98', locale='de')
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	272 Traceback (most recent call last):
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	273 ...
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	274 NumberFormatError: '1.099,98' is not a valid number
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	275
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	276 :param string: the string to parse
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	277 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	278 :return: the parsed number
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	279 :rtype: `long`
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	280 :raise `NumberFormatError`: if the string can not be converted to a number
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	281 """
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	282 try:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	283 return long(string.replace(get_group_symbol(locale), ''))
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	284 except ValueError:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	285 raise NumberFormatError('%r is not a valid number' % string)
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	286
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	287 def parse_decimal(string, locale=LC_NUMERIC):
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	288 """Parse localized decimal string into a float.
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	289
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	290 >>> parse_decimal('1,099.98', locale='en_US')
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	291 1099.98
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	292 >>> parse_decimal('1.099,98', locale='de')
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	293 1099.98
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	294
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	295 When the given string cannot be parsed, an exception is raised:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	296
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	297 >>> parse_decimal('2,109,998', locale='de')
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	298 Traceback (most recent call last):
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	299 ...
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	300 NumberFormatError: '2,109,998' is not a valid decimal number
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	301
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	302 :param string: the string to parse
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	303 :param locale: the `Locale` object or locale identifier
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	304 :return: the parsed decimal number
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	305 :rtype: `float`
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	306 :raise `NumberFormatError`: if the string can not be converted to a
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	307 decimal number
1 f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	308 """
f71ca60f2a4a Import of initial code base. cmlenz parents: diff changeset	309 locale = Locale.parse(locale)
32 48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	310 try:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	311 return float(string.replace(get_group_symbol(locale), '')
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	312 .replace(get_decimal_symbol(locale), '.'))
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	313 except ValueError:
48cf004aa357 Started docs on number formatting/parsing. cmlenz parents: 26 diff changeset	314 raise NumberFormatError('%r is not a valid decimal number' % string)
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	315
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	316
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	317 PREFIX_END = r'[^0-9@#.,]'
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	318 NUMBER_TOKEN = r'[0-9@#.\-,E+]'
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	319
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	320 PREFIX_PATTERN = r"(?P<prefix>(?:'[^']'\|%s))" % PREFIX_END
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	321 NUMBER_PATTERN = r"(?P<number>%s+)" % NUMBER_TOKEN
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	322 SUFFIX_PATTERN = r"(?P<suffix>.*)"
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	323
127 0f3a08b1c7ae Add a couple of CLI tests. cmlenz parents: 126 diff changeset	324 number_re = re.compile(r"%s%s%s" % (PREFIX_PATTERN, NUMBER_PATTERN,
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	325 SUFFIX_PATTERN))
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	326
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	327 def split_number(value):
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	328 """Convert a number into a (intasstring, fractionasstring) tuple"""
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	329 if have_decimal and isinstance(value, Decimal):
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	330 text = str(value)
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	331 else:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	332 text = ('%.9f' % value).rstrip('0')
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	333 if '.' in text:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	334 a, b = text.split('.', 1)
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	335 if b == '0':
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	336 b = ''
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	337 else:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	338 a, b = text, ''
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	339 return a, b
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	340
212 02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	341 def bankersround(value, ndigits=0):
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	342 """Round a number to a given precision.
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	343
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	344 Works like round() except that the round-half-even (banker's rounding)
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	345 algorithm is used instead of round-half-up.
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	346
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	347 >>> bankersround(5.5, 0)
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	348 6.0
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	349 >>> bankersround(6.5, 0)
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	350 6.0
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	351 >>> bankersround(-6.5, 0)
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	352 -6.0
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	353 >>> bankersround(1234.0, -2)
212 02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	354 1200.0
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	355 """
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	356 sign = int(value < 0) and -1 or 1
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	357 value = abs(value)
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	358 a, b = split_number(value)
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	359 digits = a + b
212 02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	360 add = 0
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	361 i = len(a) + ndigits
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	362 if i < 0 or i >= len(digits):
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	363 pass
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	364 elif digits[i] > '5':
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	365 add = 1
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	366 elif digits[i] == '5' and digits[i-1] in '13579':
02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	367 add = 1
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	368 scale = 10**ndigits
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	369 if have_decimal and isinstance(value, Decimal):
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	370 return Decimal(int(value * scale + add)) / scale * sign
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	371 else:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	372 return float(int(value * scale + add)) / scale * sign
212 02f2c7b9a372 Switched to using our own round() implementation. jonas parents: 211 diff changeset	373
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	374 def parse_pattern(pattern):
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	375 """Parse number format patterns"""
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	376 if isinstance(pattern, NumberPattern):
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	377 return pattern
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	378
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	379 # Do we have a negative subpattern?
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	380 if ';' in pattern:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	381 pattern, neg_pattern = pattern.split(';', 1)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	382 pos_prefix, number, pos_suffix = number_re.search(pattern).groups()
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	383 neg_prefix, _, neg_suffix = number_re.search(neg_pattern).groups()
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	384 else:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	385 pos_prefix, number, pos_suffix = number_re.search(pattern).groups()
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	386 neg_prefix = '-' + pos_prefix
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	387 neg_suffix = pos_suffix
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	388 if 'E' in number:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	389 number, exp = number.split('E', 1)
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	390 else:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	391 exp = None
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	392 if '@' in number:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	393 if '.' in number and '0' in number:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	394 raise ValueError('Significant digit patterns can not contain '
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	395 '"@" or "0"')
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	396 if '.' in number:
520 3d8e87169896 Just use the rsplit() since we do not need to support 2.3 in trunk. jruigrok parents: 437 diff changeset	397 integer, fraction = number.rsplit('.', 1)
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	398 else:
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	399 integer = number
7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	400 fraction = ''
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	401 min_frac = max_frac = 0
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	402
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	403 def parse_precision(p):
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	404 """Calculate the min and max allowed digits"""
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	405 min = max = 0
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	406 for c in p:
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	407 if c in '@0':
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	408 min += 1
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	409 max += 1
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	410 elif c == '#':
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	411 max += 1
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	412 elif c == ',':
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	413 continue
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	414 else:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	415 break
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	416 return min, max
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	417
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	418 def parse_grouping(p):
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	419 """Parse primary and secondary digit grouping
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	420
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	421 >>> parse_grouping('##')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	422 0, 0
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	423 >>> parse_grouping('#,###')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	424 3, 3
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	425 >>> parse_grouping('#,####,###')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	426 3, 4
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	427 """
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	428 width = len(p)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	429 g1 = p.rfind(',')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	430 if g1 == -1:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	431 return 1000, 1000
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	432 g1 = width - g1 - 1
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	433 g2 = p[:-g1 - 1].rfind(',')
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	434 if g2 == -1:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	435 return g1, g1
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	436 g2 = width - g1 - g2 - 2
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	437 return g1, g2
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	438
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	439 int_prec = parse_precision(integer)
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	440 frac_prec = parse_precision(fraction)
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	441 if exp:
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	442 frac_prec = parse_precision(integer+fraction)
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	443 exp_plus = exp.startswith('+')
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	444 exp = exp.lstrip('+')
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	445 exp_prec = parse_precision(exp)
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	446 else:
5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	447 exp_plus = None
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	448 exp_prec = None
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	449 grouping = parse_grouping(integer)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	450 return NumberPattern(pattern, (pos_prefix, neg_prefix),
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	451 (pos_suffix, neg_suffix), grouping,
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	452 int_prec, frac_prec,
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	453 exp_prec, exp_plus)
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	454
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	455
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	456 class NumberPattern(object):
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	457
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	458 def __init__(self, pattern, prefix, suffix, grouping,
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	459 int_prec, frac_prec, exp_prec, exp_plus):
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	460 self.pattern = pattern
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	461 self.prefix = prefix
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	462 self.suffix = suffix
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	463 self.grouping = grouping
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	464 self.int_prec = int_prec
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	465 self.frac_prec = frac_prec
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	466 self.exp_prec = exp_prec
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	467 self.exp_plus = exp_plus
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	468 if '%' in ''.join(self.prefix + self.suffix):
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	469 self.scale = 100
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	470 elif u'‰' in ''.join(self.prefix + self.suffix):
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	471 self.scale = 1000
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	472 else:
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	473 self.scale = 1
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	474
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	475 def __repr__(self):
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	476 return '<%s %r>' % (type(self).__name__, self.pattern)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	477
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	478 def apply(self, value, locale, currency=None):
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	479 value *= self.scale
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	480 is_negative = int(value < 0)
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	481 if self.exp_prec: # Scientific notation
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	482 value = abs(value)
357 68e45b6ac5bb Fix scientific notation for 0. closes #99 aronacher parents: 246 diff changeset	483 if value:
68e45b6ac5bb Fix scientific notation for 0. closes #99 aronacher parents: 246 diff changeset	484 exp = int(math.floor(math.log(value, 10)))
68e45b6ac5bb Fix scientific notation for 0. closes #99 aronacher parents: 246 diff changeset	485 else:
68e45b6ac5bb Fix scientific notation for 0. closes #99 aronacher parents: 246 diff changeset	486 exp = 0
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	487 # Minimum number of integer digits
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	488 if self.int_prec[0] == self.int_prec[1]:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	489 exp -= self.int_prec[0] - 1
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	490 # Exponent grouping
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	491 elif self.int_prec[1]:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	492 exp = int(exp) / self.int_prec[1] * self.int_prec[1]
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	493 if not have_decimal or not isinstance(value, Decimal):
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	494 value = float(value)
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	495 if exp < 0:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	496 value = value * 10**(-exp)
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	497 else:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	498 value = value / 10**exp
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	499 exp_sign = ''
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	500 if exp < 0:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	501 exp_sign = get_minus_sign_symbol(locale)
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	502 elif self.exp_plus:
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	503 exp_sign = get_plus_sign_symbol(locale)
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	504 exp = abs(exp)
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	505 number = u'%s%s%s%s' % \
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	506 (self._format_sigdig(value, self.frac_prec[0],
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	507 self.frac_prec[1]),
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	508 get_exponential_symbol(locale), exp_sign,
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	509 self._format_int(str(exp), self.exp_prec[0],
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	510 self.exp_prec[1], locale))
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	511 elif '@' in self.pattern: # Is it a siginificant digits pattern?
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	512 text = self._format_sigdig(abs(value),
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	513 self.int_prec[0],
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	514 self.int_prec[1])
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	515 if '.' in text:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	516 a, b = text.split('.')
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	517 a = self._format_int(a, 0, 1000, locale)
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	518 if b:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	519 b = get_decimal_symbol(locale) + b
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	520 number = a + b
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	521 else:
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	522 number = self._format_int(text, 0, 1000, locale)
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	523 else: # A normal number pattern
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	524 a, b = split_number(bankersround(abs(value),
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	525 self.frac_prec[1]))
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	526 b = b or '0'
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	527 a = self._format_int(a, self.int_prec[0],
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	528 self.int_prec[1], locale)
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	529 b = self._format_frac(b, locale)
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	530 number = a + b
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	531 retval = u'%s%s%s' % (self.prefix[is_negative], number,
222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	532 self.suffix[is_negative])
125 b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	533 if u'¤' in retval:
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	534 retval = retval.replace(u'¤¤', currency.upper())
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	535 retval = retval.replace(u'¤', get_currency_symbol(currency, locale))
b75ae5def3b1 Add currency formatting. cmlenz parents: 101 diff changeset	536 return retval
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	537
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	538 def _format_sigdig(self, value, min, max):
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	539 """Convert value to a string.
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	540
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	541 The resulting string will contain between (min, max) number of
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	542 significant digits.
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	543 """
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	544 a, b = split_number(value)
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	545 ndecimals = len(a)
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	546 if a == '0' and b != '':
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	547 ndecimals = 0
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	548 while b.startswith('0'):
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	549 b = b[1:]
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	550 ndecimals -= 1
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	551 a, b = split_number(bankersround(value, max - ndecimals))
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	552 digits = len((a + b).lstrip('0'))
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	553 if not digits:
211 1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	554 digits = 1
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	555 # Figure out if we need to add any trailing '0':s
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	556 if len(a) >= max and a != '0':
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	557 return a
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	558 if digits < min:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	559 b += ('0' * (min - digits))
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	560 if b:
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	561 return '%s.%s' % (a, b)
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	562 return a
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	563
1adcbeb4607b Added support for siginificant digits in number patterns. jonas parents: 137 diff changeset	564 def _format_int(self, value, min, max, locale):
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	565 width = len(value)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	566 if width < min:
243 5e4b1fd6b348 Added initial support for scientific notation patterns. jonas parents: 233 diff changeset	567 value = '0' * (min - width) + value
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	568 gsize = self.grouping[0]
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	569 ret = ''
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	570 symbol = get_group_symbol(locale)
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	571 while len(value) > gsize:
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	572 ret = symbol + value[-gsize:] + ret
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	573 value = value[:-gsize]
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	574 gsize = self.grouping[1]
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	575 return value + ret
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	576
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	577 def _format_frac(self, value, locale):
244 222ccdeef393 Added `Decimal` support to the scientific notation formatter and some code cleanup. This closes #52. jonas parents: 243 diff changeset	578 min, max = self.frac_prec
218 b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	579 if len(value) < min:
b566f483b763 Added Decimal support to the number formatter. jonas parents: 212 diff changeset	580 value += ('0' * (min - len(value)))
22 7d37639a7411 Implemented babel.numbers.format_percent jonas parents: 9 diff changeset	581 if max == 0 or (min == 0 and int(value) == 0):
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	582 return ''
3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	583 width = len(value)
50 fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	584 while len(value) > min and value[-1] == '0':
fa8a27b80eb4 Added round-half-even (banker's rounding) support. jonas parents: 39 diff changeset	585 value = value[:-1]
9 3be73c6f01f1 Add basic support for number format patterns. jonas parents: 1 diff changeset	586 return get_decimal_symbol(locale) + value

Mercurial > babel > old > babel-test

annotate babel/numbers.py @ 530:85e1beadacb0