def parse_depends(self, value):
package_name = Word(alphanums + '.-${}:')('name')
version = Combine(
Word(nums + '.-') + Optional(Literal('~') + Word(alphanums + '+'))
)('version')
sign = Or(map(Literal, ('>', '<', '>=', '<=', '=',)))('sign')
dependency = (
(
package_name +
Literal('(').suppress() +
Optional(sign)('sign') +
version +
Literal(')').suppress()
) | (
package_name
)
).setParseAction(lambda x: get_dependency(x.name, x.sign, x.version))
delim = MatchFirst([])
for i in self.dependency_delimiters + self.dependency_interlimiters:
delim = delim | Literal(i)
dlName = _ustr(dependency)+" ["+_ustr(delim)+" "+_ustr(dependency)+"]..."
dependencies = Optional((dependency + ZeroOrMore(delim + dependency)).setName(dlName))
return dependencies.parseString(value, True).asList()
def __str__( self ):
if hasattr(self,"name"):
return self.name
if self.strRepr is None:
self.strRepr = "[" + _ustr(self.expr) + "]"
return self.strRepr
def _defaultExceptionDebugAction(instring, loc, expr, exc):
log.debug("Exception raised:" + P._ustr(exc))
def _defaultSuccessDebugAction(instring, startloc, endloc, expr, toks):
log.debug("Matched " + P._ustr(expr) + " -> " + str(toks.asList()))
def _defaultStartDebugAction(instring, loc, expr):
log.debug("Match " + P._ustr(expr) + " at loc " + P._ustr(loc) + "(%d,%d)"
% ( P.lineno(loc,instring), P.col(loc,instring) ))
def _defaultExceptionDebugAction(instring, loc, expr, exc):
log.debug("Exception raised:" + P._ustr(exc))
def _defaultSuccessDebugAction(instring, startloc, endloc, expr, toks):
log.debug("Matched " + P._ustr(expr) + " -> " + str(toks.asList()))
def _defaultStartDebugAction(instring, loc, expr):
log.debug("Match " + P._ustr(expr) + " at loc " + P._ustr(loc) +
"(%d,%d)" % (P.lineno(loc, instring), P.col(loc, instring)))
