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Diffstat (limited to 'addon-sdk/source/python-lib/cuddlefish/version_comparator.py')
| -rw-r--r-- | addon-sdk/source/python-lib/cuddlefish/version_comparator.py | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/addon-sdk/source/python-lib/cuddlefish/version_comparator.py b/addon-sdk/source/python-lib/cuddlefish/version_comparator.py deleted file mode 100644 index fee1341fd..000000000 --- a/addon-sdk/source/python-lib/cuddlefish/version_comparator.py +++ /dev/null @@ -1,206 +0,0 @@ -# This Source Code Form is subject to the terms of the Mozilla Public -# License, v. 2.0. If a copy of the MPL was not distributed with this -# file, You can obtain one at http://mozilla.org/MPL/2.0/. - -''' - This is a really crummy, slow Python implementation of the Mozilla - platform's nsIVersionComparator interface: - - https://developer.mozilla.org/En/NsIVersionComparator - - For more information, also see: - - http://dxr.mozilla.org/mozilla-central/source/xpcom/glue/nsVersionComparator.cpp -''' - -import re -import sys - -class VersionPart(object): - ''' - Examples: - - >>> VersionPart('1') - (1, None, 0, None) - - >>> VersionPart('1pre') - (1, 'pre', 0, None) - - >>> VersionPart('1pre10') - (1, 'pre', 10, None) - - >>> VersionPart('1pre10a') - (1, 'pre', 10, 'a') - - >>> VersionPart('1+') - (2, 'pre', 0, None) - - >>> VersionPart('*').numA == sys.maxint - True - - >>> VersionPart('1') < VersionPart('2') - True - - >>> VersionPart('2') > VersionPart('1') - True - - >>> VersionPart('1') == VersionPart('1') - True - - >>> VersionPart('1pre') > VersionPart('1') - False - - >>> VersionPart('1') < VersionPart('1pre') - False - - >>> VersionPart('1pre1') < VersionPart('1pre2') - True - - >>> VersionPart('1pre10b') > VersionPart('1pre10a') - True - - >>> VersionPart('1pre10b') == VersionPart('1pre10b') - True - - >>> VersionPart('1pre10a') < VersionPart('1pre10b') - True - - >>> VersionPart('1') > VersionPart('') - True - ''' - - _int_part = re.compile('[+-]?(\d*)(.*)') - _num_chars = '0123456789+-' - - def __init__(self, part): - self.numA = 0 - self.strB = None - self.numC = 0 - self.extraD = None - - if not part: - return - - if part == '*': - self.numA = sys.maxint - else: - match = self._int_part.match(part) - self.numA = int(match.group(1)) - self.strB = match.group(2) or None - if self.strB == '+': - self.strB = 'pre' - self.numA += 1 - elif self.strB: - i = 0 - num_found = -1 - for char in self.strB: - if char in self._num_chars: - num_found = i - break - i += 1 - if num_found != -1: - match = self._int_part.match(self.strB[num_found:]) - self.numC = int(match.group(1)) - self.extraD = match.group(2) or None - self.strB = self.strB[:num_found] - - def _strcmp(self, str1, str2): - # Any string is *before* no string. - if str1 is None: - if str2 is None: - return 0 - else: - return 1 - - if str2 is None: - return -1 - - return cmp(str1, str2) - - def __cmp__(self, other): - r = cmp(self.numA, other.numA) - if r: - return r - - r = self._strcmp(self.strB, other.strB) - if r: - return r - - r = cmp(self.numC, other.numC) - if r: - return r - - return self._strcmp(self.extraD, other.extraD) - - def __repr__(self): - return repr((self.numA, self.strB, self.numC, self.extraD)) - -def compare(a, b): - ''' - Examples: - - >>> compare('1', '2') - -1 - - >>> compare('1', '1') - 0 - - >>> compare('2', '1') - 1 - - >>> compare('1.0pre1', '1.0pre2') - -1 - - >>> compare('1.0pre2', '1.0') - -1 - - >>> compare('1.0', '1.0.0') - 0 - - >>> compare('1.0.0', '1.0.0.0') - 0 - - >>> compare('1.0.0.0', '1.1pre') - -1 - - >>> compare('1.1pre', '1.1pre0') - 0 - - >>> compare('1.1pre0', '1.0+') - 0 - - >>> compare('1.0+', '1.1pre1a') - -1 - - >>> compare('1.1pre1a', '1.1pre1') - -1 - - >>> compare('1.1pre1', '1.1pre10a') - -1 - - >>> compare('1.1pre10a', '1.1pre10') - -1 - - >>> compare('1.1pre10a', '1.*') - -1 - ''' - - a_parts = a.split('.') - b_parts = b.split('.') - - if len(a_parts) < len(b_parts): - a_parts.extend([''] * (len(b_parts) - len(a_parts))) - else: - b_parts.extend([''] * (len(a_parts) - len(b_parts))) - - for a_part, b_part in zip(a_parts, b_parts): - r = cmp(VersionPart(a_part), VersionPart(b_part)) - if r: - return r - - return 0 - -if __name__ == '__main__': - import doctest - - doctest.testmod(verbose=True) |