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1919b7e72b
up the decimal module. Performance gains of the new C implementation are between 12x and 80x, depending on the application.
344 lines
11 KiB
Python
344 lines
11 KiB
Python
#
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# Copyright (c) 2008-2012 Stefan Krah. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Generate PEP-3101 format strings.
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import os, sys, locale, random
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import platform, subprocess
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from test.support import import_fresh_module
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from distutils.spawn import find_executable
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C = import_fresh_module('decimal', fresh=['_decimal'])
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P = import_fresh_module('decimal', blocked=['_decimal'])
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windows_lang_strings = [
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"chinese", "chinese-simplified", "chinese-traditional", "czech", "danish",
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"dutch", "belgian", "english", "australian", "canadian", "english-nz",
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"english-uk", "english-us", "finnish", "french", "french-belgian",
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"french-canadian", "french-swiss", "german", "german-austrian",
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"german-swiss", "greek", "hungarian", "icelandic", "italian", "italian-swiss",
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"japanese", "korean", "norwegian", "norwegian-bokmal", "norwegian-nynorsk",
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"polish", "portuguese", "portuguese-brazil", "russian", "slovak", "spanish",
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"spanish-mexican", "spanish-modern", "swedish", "turkish",
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]
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preferred_encoding = {
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'cs_CZ': 'ISO8859-2',
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'cs_CZ.iso88592': 'ISO8859-2',
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'czech': 'ISO8859-2',
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'eesti': 'ISO8859-1',
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'estonian': 'ISO8859-1',
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'et_EE': 'ISO8859-15',
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'et_EE.ISO-8859-15': 'ISO8859-15',
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'et_EE.iso885915': 'ISO8859-15',
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'et_EE.iso88591': 'ISO8859-1',
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'fi_FI.iso88591': 'ISO8859-1',
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'fi_FI': 'ISO8859-15',
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'fi_FI@euro': 'ISO8859-15',
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'fi_FI.iso885915@euro': 'ISO8859-15',
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'finnish': 'ISO8859-1',
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'lv_LV': 'ISO8859-13',
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'lv_LV.iso885913': 'ISO8859-13',
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'nb_NO': 'ISO8859-1',
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'nb_NO.iso88591': 'ISO8859-1',
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'bokmal': 'ISO8859-1',
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'nn_NO': 'ISO8859-1',
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'nn_NO.iso88591': 'ISO8859-1',
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'no_NO': 'ISO8859-1',
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'norwegian': 'ISO8859-1',
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'nynorsk': 'ISO8859-1',
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'ru_RU': 'ISO8859-5',
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'ru_RU.iso88595': 'ISO8859-5',
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'russian': 'ISO8859-5',
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'ru_RU.KOI8-R': 'KOI8-R',
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'ru_RU.koi8r': 'KOI8-R',
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'ru_RU.CP1251': 'CP1251',
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'ru_RU.cp1251': 'CP1251',
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'sk_SK': 'ISO8859-2',
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'sk_SK.iso88592': 'ISO8859-2',
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'slovak': 'ISO8859-2',
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'sv_FI': 'ISO8859-1',
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'sv_FI.iso88591': 'ISO8859-1',
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'sv_FI@euro': 'ISO8859-15',
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'sv_FI.iso885915@euro': 'ISO8859-15',
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'uk_UA': 'KOI8-U',
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'uk_UA.koi8u': 'KOI8-U'
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}
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integers = [
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"",
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"1",
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"12",
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"123",
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"1234",
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"12345",
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"123456",
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"1234567",
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"12345678",
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"123456789",
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"1234567890",
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"12345678901",
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"123456789012",
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"1234567890123",
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"12345678901234",
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"123456789012345",
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"1234567890123456",
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"12345678901234567",
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"123456789012345678",
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"1234567890123456789",
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"12345678901234567890",
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"123456789012345678901",
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"1234567890123456789012",
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]
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numbers = [
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"0", "-0", "+0",
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"0.0", "-0.0", "+0.0",
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"0e0", "-0e0", "+0e0",
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".0", "-.0",
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".1", "-.1",
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"1.1", "-1.1",
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"1e1", "-1e1"
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]
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# Get the list of available locales.
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if platform.system() == 'Windows':
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locale_list = windows_lang_strings
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else:
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locale_list = ['C']
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if os.path.isfile("/var/lib/locales/supported.d/local"):
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# On Ubuntu, `locale -a` gives the wrong case for some locales,
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# so we get the correct names directly:
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with open("/var/lib/locales/supported.d/local") as f:
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locale_list = [loc.split()[0] for loc in f.readlines() \
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if not loc.startswith('#')]
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elif find_executable('locale'):
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locale_list = subprocess.Popen(["locale", "-a"],
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stdout=subprocess.PIPE).communicate()[0]
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try:
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locale_list = locale_list.decode()
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except UnicodeDecodeError:
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# Some distributions insist on using latin-1 characters
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# in their locale names.
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locale_list = locale_list.decode('latin-1')
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locale_list = locale_list.split('\n')
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try:
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locale_list.remove('')
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except ValueError:
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pass
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# Debian
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if os.path.isfile("/etc/locale.alias"):
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with open("/etc/locale.alias") as f:
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while 1:
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try:
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line = f.readline()
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except UnicodeDecodeError:
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continue
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if line == "":
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break
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if line.startswith('#'):
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continue
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x = line.split()
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if len(x) == 2:
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if x[0] in locale_list:
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locale_list.remove(x[0])
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# FreeBSD
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if platform.system() == 'FreeBSD':
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# http://www.freebsd.org/cgi/query-pr.cgi?pr=142173
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# en_GB.US-ASCII has 163 as the currency symbol.
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for loc in ['it_CH.ISO8859-1', 'it_CH.ISO8859-15', 'it_CH.UTF-8',
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'it_IT.ISO8859-1', 'it_IT.ISO8859-15', 'it_IT.UTF-8',
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'sl_SI.ISO8859-2', 'sl_SI.UTF-8',
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'en_GB.US-ASCII']:
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try:
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locale_list.remove(loc)
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except ValueError:
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pass
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# Print a testcase in the format of the IBM tests (for runtest.c):
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def get_preferred_encoding():
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loc = locale.setlocale(locale.LC_CTYPE)
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if loc in preferred_encoding:
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return preferred_encoding[loc]
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else:
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return locale.getpreferredencoding()
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def printit(testno, s, fmt, encoding=None):
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if not encoding:
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encoding = get_preferred_encoding()
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try:
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result = format(P.Decimal(s), fmt)
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fmt = str(fmt.encode(encoding))[2:-1]
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result = str(result.encode(encoding))[2:-1]
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if "'" in result:
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sys.stdout.write("xfmt%d format %s '%s' -> \"%s\"\n"
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% (testno, s, fmt, result))
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else:
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sys.stdout.write("xfmt%d format %s '%s' -> '%s'\n"
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% (testno, s, fmt, result))
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except Exception as err:
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sys.stderr.write("%s %s %s\n" % (err, s, fmt))
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# Check if an integer can be converted to a valid fill character.
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def check_fillchar(i):
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try:
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c = chr(i)
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c.encode('utf-8').decode()
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format(P.Decimal(0), c + '<19g')
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if c in ("'", '"', '\\'):
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return None
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return c
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except:
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return None
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# Generate all unicode characters that are accepted as
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# fill characters by decimal.py.
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def all_fillchars():
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for i in range(32, 0x110002):
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c = check_fillchar(i)
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if c: yield c
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# Return random fill character.
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def rand_fillchar():
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while 1:
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i = random.randrange(32, 0x110002)
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c = check_fillchar(i)
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if c: return c
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# Generate random format strings
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# [[fill]align][sign][#][0][width][.precision][type]
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def rand_format(fill, typespec='EeGgFfn%'):
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active = sorted(random.sample(range(7), random.randrange(8)))
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have_align = 0
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s = ''
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for elem in active:
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if elem == 0: # fill+align
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s += fill
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s += random.choice('<>=^')
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have_align = 1
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elif elem == 1: # sign
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s += random.choice('+- ')
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elif elem == 2 and not have_align: # zeropad
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s += '0'
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elif elem == 3: # width
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s += str(random.randrange(1, 100))
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elif elem == 4: # thousands separator
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s += ','
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elif elem == 5: # prec
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s += '.'
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s += str(random.randrange(100))
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elif elem == 6:
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if 4 in active: c = typespec.replace('n', '')
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else: c = typespec
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s += random.choice(c)
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return s
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# Partially brute force all possible format strings containing a thousands
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# separator. Fall back to random where the runtime would become excessive.
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# [[fill]align][sign][#][0][width][,][.precision][type]
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def all_format_sep():
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for align in ('', '<', '>', '=', '^'):
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for fill in ('', 'x'):
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if align == '': fill = ''
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for sign in ('', '+', '-', ' '):
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for zeropad in ('', '0'):
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if align != '': zeropad = ''
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for width in ['']+[str(y) for y in range(1, 15)]+['101']:
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for prec in ['']+['.'+str(y) for y in range(15)]:
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# for type in ('', 'E', 'e', 'G', 'g', 'F', 'f', '%'):
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type = random.choice(('', 'E', 'e', 'G', 'g', 'F', 'f', '%'))
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yield ''.join((fill, align, sign, zeropad, width, ',', prec, type))
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# Partially brute force all possible format strings with an 'n' specifier.
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# [[fill]align][sign][#][0][width][,][.precision][type]
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def all_format_loc():
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for align in ('', '<', '>', '=', '^'):
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for fill in ('', 'x'):
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if align == '': fill = ''
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for sign in ('', '+', '-', ' '):
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for zeropad in ('', '0'):
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if align != '': zeropad = ''
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for width in ['']+[str(y) for y in range(1, 20)]+['101']:
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for prec in ['']+['.'+str(y) for y in range(1, 20)]:
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yield ''.join((fill, align, sign, zeropad, width, prec, 'n'))
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# Generate random format strings with a unicode fill character
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# [[fill]align][sign][#][0][width][,][.precision][type]
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def randfill(fill):
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active = sorted(random.sample(range(5), random.randrange(6)))
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s = ''
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s += str(fill)
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s += random.choice('<>=^')
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for elem in active:
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if elem == 0: # sign
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s += random.choice('+- ')
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elif elem == 1: # width
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s += str(random.randrange(1, 100))
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elif elem == 2: # thousands separator
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s += ','
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elif elem == 3: # prec
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s += '.'
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s += str(random.randrange(100))
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elif elem == 4:
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if 2 in active: c = 'EeGgFf%'
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else: c = 'EeGgFfn%'
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s += random.choice(c)
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return s
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# Generate random format strings with random locale setting
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# [[fill]align][sign][#][0][width][,][.precision][type]
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def rand_locale():
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try:
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loc = random.choice(locale_list)
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locale.setlocale(locale.LC_ALL, loc)
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except locale.Error as err:
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pass
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active = sorted(random.sample(range(5), random.randrange(6)))
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s = ''
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have_align = 0
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for elem in active:
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if elem == 0: # fill+align
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s += chr(random.randrange(32, 128))
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s += random.choice('<>=^')
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have_align = 1
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elif elem == 1: # sign
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s += random.choice('+- ')
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elif elem == 2 and not have_align: # zeropad
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s += '0'
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elif elem == 3: # width
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s += str(random.randrange(1, 100))
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elif elem == 4: # prec
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s += '.'
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s += str(random.randrange(100))
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s += 'n'
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return s
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