def _createQuantRule3(self, child, quantity, lineNum, line,
segtypesHelper):
if quantity <= 0:
raise exceptions.ConfigFileException(
segtypesHelper.filename, lineNum,
u'%s - invalid quantity: %d' % (line, quantity))
else:
return rules.ConcatRule([
rules.ConcatRule(quantity * [child], lineNum),
rules.ZeroOrMoreRule(child, lineNum)
], lineNum)
def _doParseOneLine(self, lineNum, line, segtypesHelper, filename):
rule = Forward()
tagRule = Word(alphanums + '_')
shiftOrthRule = Word(alphanums + '_') + Suppress('>')
parenRule = Suppress('(') + rule + Suppress(')')
parenWithShiftOrthRule = parenRule + Suppress('>')
atomicRule = tagRule ^ shiftOrthRule ^ parenWithShiftOrthRule ^ parenRule
zeroOrMoreRule = atomicRule + Suppress('*')
oneOrMoreRule = atomicRule + Suppress('+')
optionalRule = atomicRule + Suppress('?')
quantRule1 = atomicRule + Suppress('{') + Word(nums) + Suppress('}')
quantRule2 = atomicRule + Suppress('{') + Word(nums) + Suppress(
',') + Word(nums) + Suppress('}')
quantRule3 = atomicRule + Suppress('{') + Word(nums) + Suppress(
',') + Suppress('}')
unaryRule = atomicRule ^ zeroOrMoreRule ^ oneOrMoreRule ^ optionalRule ^ quantRule1 ^ quantRule2 ^ quantRule3
oneOfRule = delimitedList(unaryRule, delim='|')
complexRule = unaryRule ^ oneOfRule
concatRule = OneOrMore(complexRule)
# if self.rulesType == RulesParser.PARSE4ANALYZER:
# concatRule = OneOrMore(complexRule)
# else:
# concatRule = ZeroOrMore(shiftOrthRule) + tagRule
rule << concatRule
completeRule = rule + Optional(CaselessLiteral('!weak'))
tagRule.setParseAction(
lambda string, loc, toks: self._createNewTagRule(
toks[0], False, lineNum, line, segtypesHelper))
shiftOrthRule.setParseAction(
lambda string, loc, toks: self._createNewTagRule(
toks[0], True, lineNum, line, segtypesHelper))
parenWithShiftOrthRule.setParseAction(
lambda string, loc, toks: self._createNewParenWithShiftOrthRule(
toks[0], lineNum, line, segtypesHelper))
parenRule.setParseAction(lambda string, loc, toks: toks[0])
zeroOrMoreRule.setParseAction(
lambda string, loc, toks: rules.ZeroOrMoreRule(toks[0], lineNum))
quantRule1.setParseAction(
lambda string, loc, toks: self._createQuantRule1(
toks[0], int(toks[1], 10), lineNum, line, segtypesHelper))
quantRule2.setParseAction(
lambda string, loc, toks: self._createQuantRule2(
toks[0], int(toks[1], 10), int(toks[2], 10), lineNum, line,
segtypesHelper))
quantRule3.setParseAction(
lambda string, loc, toks: self._createQuantRule3(
toks[0], int(toks[1], 10), lineNum, line, segtypesHelper))
optionalRule.setParseAction(
lambda string, loc, toks: rules.OptionalRule(toks[0], lineNum))
oneOrMoreRule.setParseAction(
lambda string, loc, toks: rules.ConcatRule(
[toks[0], rules.ZeroOrMoreRule(toks[0], lineNum)], lineNum))
oneOfRule.setParseAction(
lambda string, loc, toks: rules.OrRule(list(toks), lineNum))
concatRule.setParseAction(lambda string, loc, toks: toks[0] if len(
toks) == 1 else rules.ConcatRule(list(toks), lineNum))
completeRule.setParseAction(
lambda string, loc, toks: toks[0].setWeak(len(toks) == 2))
parsedRule = pyparseString.pyparseString(completeRule, lineNum, line,
filename)[0]
# print parsedRule, '-->', parsedRule.transformToGeneratorVersion()
return parsedRule
