104 lines
3.5 KiB
Python
104 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright(C) 2010 Romain Bignon
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import re
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from .ordereddict import OrderedDict
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__all__ = ['ValuesDict', 'Value', 'ValueInt', 'ValueBool', 'ValueFloat']
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class ValuesDict(OrderedDict):
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def __init__(self, *values):
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OrderedDict.__init__(self)
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for v in values:
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self[v.id] = v
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class Value(object):
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def __init__(self, *args, **kwargs):
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if len(args) > 0:
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self.id = args[0]
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else:
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self.id = ''
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self.label = kwargs.get('label', kwargs.get('description', None))
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self.description = kwargs.get('description', kwargs.get('label', None))
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self.default = kwargs.get('default', None)
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self.regexp = kwargs.get('regexp', None)
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self.choices = kwargs.get('choices', None)
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if isinstance(self.choices, (list,tuple)):
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self.choices = dict(((v, v) for v in self.choices))
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self.masked = kwargs.get('masked', False)
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self.required = kwargs.get('required', self.default is None)
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self._value = kwargs.get('value', None)
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def check_valid(self, v):
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if v == '' and self.default != '':
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raise ValueError('Value can\'t be empty')
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if self.regexp is not None and not re.match(self.regexp, unicode(v)):
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raise ValueError('Value "%s" does not match regexp "%s"' % (v, self.regexp))
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if self.choices is not None and not v in self.choices.iterkeys():
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raise ValueError('Value "%s" is not in list: %s' % (
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v, ', '.join(unicode(s) for s in self.choices.iterkeys())))
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def set_value(self, v):
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self.check_valid(v)
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self._value = v
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@property
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def value(self):
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return self._value
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class ValueInt(Value):
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def __init__(self, *args, **kwargs):
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kwargs['regexp'] = '^\d+$'
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Value.__init__(self, *args, **kwargs)
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@property
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def value(self):
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return int(self._value)
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class ValueFloat(Value):
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def __init__(self, *args, **kwargs):
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kwargs['regexp'] = '^[\d\.]+$'
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Value.__init__(self, *args, **kwargs)
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def check_valid(self, v):
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try:
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float(v)
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except ValueError:
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raise ValueError('Value "%s" is not a float value')
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@property
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def value(self):
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return float(self._value)
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class ValueBool(Value):
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def __init__(self, *args, **kwargs):
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kwargs['choices'] = {'y': 'True', 'n': 'False'}
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Value.__init__(self, *args, **kwargs)
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def check_valid(self, v):
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if not isinstance(v, bool) and \
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not unicode(v).lower() in ('y', 'yes', '1', 'true', 'on',
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'n', 'no', '0', 'false', 'off'):
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raise ValueError('Value "%s" is not a boolean (y/n)' % v)
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@property
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def value(self):
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return (isinstance(self._value, bool) and self._value) or \
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unicode(self._value).lower() in ('y', 'yes', '1', 'true', 'on')
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