golden hour

/lib/python2.7/site-packages/babel/messages

File/Folder	Size	Actions
__init__.py	576 B
__init__.pyc	265 B
__init__.pyo	265 B
catalog.py	29.5 KB
catalog.pyc	26.58 KB
catalog.pyo	26.41 KB
checkers.py	6.1 KB
checkers.pyc	5.39 KB
checkers.pyo	5.39 KB
extract.py	21.98 KB
extract.pyc	16.46 KB
extract.pyo	16.46 KB
frontend.py	48.89 KB
frontend.pyc	39.08 KB
frontend.pyo	39.04 KB
jslexer.py	5.5 KB
jslexer.pyc	4.91 KB
jslexer.pyo	4.78 KB
mofile.py	4.16 KB
mofile.pyc	3.04 KB
mofile.pyo	3.04 KB
plurals.py	6.79 KB
plurals.pyc	6.34 KB
plurals.pyo	6.34 KB
pofile.py	15.67 KB
pofile.pyc	13.73 KB
pofile.pyo	13.73 KB

Edit: checkers.py

# -*- coding: utf-8 -*-
#
# Copyright (C) 2007 Edgewall Software
# All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://babel.edgewall.org/wiki/License.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at http://babel.edgewall.org/log/.

"""Various routines that help with validation of translations.

:since: version 0.9
"""

from itertools import izip
from babel.messages.catalog import TranslationError, PYTHON_FORMAT
from babel.util import set

#: list of format chars that are compatible to each other
_string_format_compatibilities = [
    set(['i', 'd', 'u']),
    set(['x', 'X']),
    set(['f', 'F', 'g', 'G'])
]

def num_plurals(catalog, message):
    """Verify the number of plurals in the translation."""
    if not message.pluralizable:
        if not isinstance(message.string, basestring):
            raise TranslationError("Found plural forms for non-pluralizable "
                                   "message")
        return

# skip further tests if no catalog is provided.
    elif catalog is None:
        return

msgstrs = message.string
    if not isinstance(msgstrs, (list, tuple)):
        msgstrs = (msgstrs,)
    if len(msgstrs) != catalog.num_plurals:
        raise TranslationError("Wrong number of plural forms (expected %d)" %
                               catalog.num_plurals)

def python_format(catalog, message):
    """Verify the format string placeholders in the translation."""
    if 'python-format' not in message.flags:
        return
    msgids = message.id
    if not isinstance(msgids, (list, tuple)):
        msgids = (msgids,)
    msgstrs = message.string
    if not isinstance(msgstrs, (list, tuple)):
        msgstrs = (msgstrs,)

for msgid, msgstr in izip(msgids, msgstrs):
        if msgstr:
            _validate_format(msgid, msgstr)

def _validate_format(format, alternative):
    """Test format string `alternative` against `format`.  `format` can be the
    msgid of a message and `alternative` one of the `msgstr`\s.  The two
    arguments are not interchangeable as `alternative` may contain less
    placeholders if `format` uses named placeholders.

The behavior of this function is undefined if the string does not use
    string formattings.

If the string formatting of `alternative` is compatible to `format` the
    function returns `None`, otherwise a `TranslationError` is raised.

Examples for compatible format strings:

>>> _validate_format('Hello %s!', 'Hallo %s!')
    >>> _validate_format('Hello %i!', 'Hallo %d!')

Example for an incompatible format strings:

>>> _validate_format('Hello %(name)s!', 'Hallo %s!')
    Traceback (most recent call last):
      ...
    TranslationError: the format strings are of different kinds

This function is used by the `python_format` checker.

:param format: The original format string
    :param alternative: The alternative format string that should be checked
                        against format
    :return: None on success
    :raises TranslationError: on formatting errors
    """

def _parse(string):
        result = []
        for match in PYTHON_FORMAT.finditer(string):
            name, format, typechar = match.groups()
            if typechar == '%' and name is None:
                continue
            result.append((name, str(typechar)))
        return result

def _compatible(a, b):
        if a == b:
            return True
        for set in _string_format_compatibilities:
            if a in set and b in set:
                return True
        return False

def _check_positional(results):
        positional = None
        for name, char in results:
            if positional is None:
                positional = name is None
            else:
                if (name is None) != positional:
                    raise TranslationError('format string mixes positional '
                                           'and named placeholders')
        return bool(positional)

a, b = map(_parse, (format, alternative))

# now check if both strings are positional or named
    a_positional, b_positional = map(_check_positional, (a, b))
    if a_positional and not b_positional and not b:
        raise TranslationError('placeholders are incompatible')
    elif a_positional != b_positional:
        raise TranslationError('the format strings are of different kinds')

# if we are operating on positional strings both must have the
    # same number of format chars and those must be compatible
    if a_positional:
        if len(a) != len(b):
            raise TranslationError('positional format placeholders are '
                                   'unbalanced')
        for idx, ((_, first), (_, second)) in enumerate(izip(a, b)):
            if not _compatible(first, second):
                raise TranslationError('incompatible format for placeholder '
                                       '%d: %r and %r are not compatible' %
                                       (idx + 1, first, second))

# otherwise the second string must not have names the first one
    # doesn't have and the types of those included must be compatible
    else:
        type_map = dict(a)
        for name, typechar in b:
            if name not in type_map:
                raise TranslationError('unknown named placeholder %r' % name)
            elif not _compatible(typechar, type_map[name]):
                raise TranslationError('incompatible format for '
                                       'placeholder %r: '
                                       '%r and %r are not compatible' %
                                       (name, typechar, type_map[name]))

def _find_checkers():
    try:
        from pkg_resources import working_set
    except ImportError:
        return [num_plurals, python_format]
    checkers = []
    for entry_point in working_set.iter_entry_points('babel.checkers'):
        checkers.append(entry_point.load())
    return checkers

checkers = _find_checkers()