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import re
class OEList(list):
name = "list"
def __init__(self, value, separator = None):
if value is not None:
list.__init__(self, value.split(separator))
else:
list.__init__(self)
if separator is None:
self.separator = " "
else:
self.separator = separator
def __str__(self):
return self.separator.join(self)
def choice(value, choices):
if not isinstance(value, basestring):
raise TypeError("choice accepts a string, not '%s'" % type(value))
value = value.lower()
choices = choices.lower()
if value not in choices.split():
raise ValueError("Invalid choice '%s'. Valid choices: %s" %
(value, choices))
return value
def regex(value, regexflags=None):
flagval = 0
if regexflags:
for flag in regexflags.split():
flag = flag.upper()
try:
flagval |= getattr(re, flag)
except AttributeError:
raise ValueError("Invalid regex flag '%s'" % flag)
try:
return re.compile(value, flagval)
except re.error, exc:
raise ValueError("Invalid regex value '%s': %s" %
(value, exc.args[0]))
def boolean(value):
if not isinstance(value, basestring):
raise TypeError("boolean accepts a string, not '%s'" % type(value))
value = value.lower()
if value in ('yes', 'y', 'true', 't', '1'):
return True
elif value in ('no', 'n', 'false', 'f', '0'):
return False
raise ValueError("Invalid boolean value '%s'" % value)
def integer(value):
return int(value)
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