def load_python_file(moduleobject):
""" Try to create an indexable instance from a module"""
if isinstance(moduleobject, str):
moduleobject = load_module(moduleobject)
if not hasattr(moduleobject, "iclass"):
raise KeyError("Element" + str(moduleobject))
iclass = getattr(moduleobject, "iclass")
mylist = getattr(moduleobject, "__all__", None) or list(
filter(lambda x: x[:1] != "_", (dir(moduleobject))))
mylist.remove('iclass')
resultdic = {}
for x in mylist:
resultdic[x] = getattr(moduleobject, x)
if iclass == "SymbolGrammar":
from pydsl.grammar.BNF import BNFGrammar
return BNFGrammar(**resultdic)
elif iclass == "PLY":
from pydsl.grammar.definition import PLYGrammar
return PLYGrammar(moduleobject)
elif iclass in ["PythonGrammar"]:
from pydsl.grammar.definition import PythonGrammar
return PythonGrammar(resultdic)
elif iclass == "PythonTranslator":
return resultdic
elif iclass == "parsley":
from pydsl.grammar.parsley import ParsleyGrammar
return ParsleyGrammar(**resultdic)
elif iclass == "pyparsing":
return resultdic['root_symbol']
else:
raise ValueError(str(moduleobject))
def testCheck(self):
"""Test checker instantiation and call"""
from pydsl.check import PLYChecker
from pydsl.contrib.grammar import example_ply
from pydsl.grammar.definition import PLYGrammar
grammardef = PLYGrammar(example_ply)
checker = PLYChecker(grammardef)
self.assertTrue(checker.check("O"))
self.assertTrue(checker.check(["O"]))
self.assertFalse(checker.check("FALSE"))
class TestGrammarDefinitionPLY(unittest.TestCase):
def setUp(self):
import plye
from pydsl.grammar.definition import PLYGrammar
self.grammardef = PLYGrammar(plye)
@unittest.skip
def testEnumerate(self):
self.grammardef.enum()
@unittest.skip
def testFirst(self):
self.grammardef.first
@unittest.skip
def testMin(self):
self.grammardef.minsize
@unittest.skip
def testMax(self):
self.grammardef.maxsize
def testAlphabet(self):
self.assertListEqual(self.grammardef.alphabet, frozenset)
class TestGrammarDefinitionPLY(unittest.TestCase):
def setUp(self):
import plye
from pydsl.grammar.definition import PLYGrammar
self.grammardef = PLYGrammar(plye)
@unittest.skip
def testEnumerate(self):
self.grammardef.enum()
@unittest.skip
def testFirst(self):
self.grammardef.first
@unittest.skip
def testMin(self):
self.grammardef.minsize
@unittest.skip
def testMax(self):
self.grammardef.maxsize
def testAlphabet(self):
self.assertListEqual(self.grammardef.alphabet, frozenset)
def setUp(self):
import plye
from pydsl.grammar.definition import PLYGrammar
self.grammardef = PLYGrammar(plye)
def setUp(self):
import plye
from pydsl.grammar.definition import PLYGrammar
self.grammardef = PLYGrammar(plye)
