def test_cannot_init(self):
with self.assertRaises(TypeError):
Literal()
with self.assertRaises(TypeError):
Literal[1]()
with self.assertRaises(TypeError):
type(Literal)()
with self.assertRaises(TypeError):
type(Literal[1])()
def _define_grammar():
from pyparsing import (
Literal as Literal,
Word,
Optional,
alphas,
alphanums,
delimitedList,
)
Separator = Literal("@").suppress()
TagSeparator = Literal("?").suppress()
Name = delimitedList(Word(alphas, alphanums + "_"),
PATH_DELIM,
combine=True).setResultsName("name")
Tag = Word(alphas, alphanums + "_").setResultsName("tag")
Selector = _selector_grammar.setResultsName("selector")
SelectorType = (Literal("solids") | Literal("faces") | Literal("edges")
| Literal("vertices")).setResultsName("selector_kind")
return (Name + Optional(TagSeparator + Tag) +
Optional(Separator + SelectorType + Separator + Selector))