def ParseIsCategory(self):
"""Returns a CharClass corresponding to one of the character categories
or raises an error."""
if self.theChar in self.Categories:
cat = self.theChar
self.NextChar()
if self.theChar is not None and (cat + self.theChar) in self.Categories:
cat = cat + self.theChar
self.NextChar()
return CharClass.UCDCategory(cat)
else:
raise RegularExpressionError(
"Expected category name [%i]" % self.pos)
return 1
class RegularExpressionError(Exception):
pass
sClass = CharClass(u'\x09', u'\x0A', u'\x0D', u' ')
SClass = CharClass(sClass)
SClass.Negate()
iClass = CharClass(LetterCharClass, u'_', u':')
IClass = CharClass(iClass)
IClass.Negate()
CClass = CharClass(NameCharClass)
CClass.Negate()
dClass = CharClass.UCDCategory('Nd')
DClass = CharClass(dClass)
DClass.Negate()
WClass = CharClass(CharClass.UCDCategory(
'P'), CharClass.UCDCategory('Z'), CharClass.UCDCategory('C'))
wClass = CharClass(WClass)
wClass.Negate()
class RegularExpressionParser(BasicParser):
"""A custom parser for XML schema regular expressions.
The parser is initialised from a source string, the string to be parsed."""
def _REEscape(self, c=None):
