59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
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"""
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Contains various definitions common to modules acquired from 4Suite
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"""
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__all__ = ["FtException", "get_translator"]
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class FtException(Exception):
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def __init__(self, errorCode, messages, args):
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# By defining __str__, args will be available. Otherwise
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# the __init__ of Exception sets it to the passed in arguments.
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self.params = args
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self.errorCode = errorCode
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self.message = messages[errorCode] % args
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Exception.__init__(self, self.message, args)
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def __str__(self):
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return self.message
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# What follows is used to provide support for I18N in the rest of the
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# 4Suite-derived packages in PyXML.
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#
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# Each sub-package of the top-level "xml" package that contains 4Suite
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# code is really a separate text domain, but they're all called
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# '4Suite'. For each domain, a translation object is provided using
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# message catalogs stored inside the package. The code below defines
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# a get_translator() function that returns an appropriate gettext
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# function to be used as _() in the sub-package named by the
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# parameter. This handles all the compatibility issues related to
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# Python versions (whether the gettext module can be found) and
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# whether the message catalogs can actually be found.
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def _(msg):
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return msg
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try:
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import gettext
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except (ImportError, IOError):
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def get_translator(pkg):
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return _
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else:
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import os
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_cache = {}
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_top = os.path.dirname(os.path.abspath(__file__))
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def get_translator(pkg):
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if not _cache.has_key(pkg):
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locale_dir = os.path.join(_top, pkg.replace(".", os.sep))
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try:
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f = gettext.translation('4Suite', locale_dir).gettext
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except IOError:
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f = _
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_cache[pkg] = f
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return _cache[pkg]
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