def compile(self, grammar):
"""
Produce an object capable of parsing via this grammar.
@param grammar: A string containing an OMeta grammar.
"""
g = self.classTested(dedent(grammar))
tree = g.parseGrammar('TestGrammar', TreeBuilder)
result = moduleFromGrammar(tree, 'TestGrammar', OMetaBase, {})
return HandyWrapper(result)
def compile(self, grammar):
"""
Produce an object capable of parsing via this grammar.
@param grammar: A string containing an OMeta grammar.
"""
g = self.classTested(dedent(grammar))
tree = g.parseGrammar('TestGrammar', TreeBuilder)
result = moduleFromGrammar(tree, 'TestGrammar', OMetaBase, {})
return HandyWrapper(result)
def compile(self, grammar):
"""
Produce an object capable of parsing via this grammar.
@param grammar: A string containing an OMeta grammar.
"""
from pymeta3.grammar import OMetaGrammar, NullOptimizer
g = OMetaGrammar(dedent(grammar))
tree = g.parseGrammar('TestGrammar', TreeBuilder)
opt = NullOptimizer([tree])
opt.builder = TreeBuilder("TestGrammar", opt)
tree, err = opt.apply("grammar")
grammarClass = moduleFromGrammar(tree, 'TestGrammar', OMetaBase, {})
return HandyWrapper(grammarClass)
def compile(self, grammar):
"""
Produce an object capable of parsing via this grammar.
@param grammar: A string containing an OMeta grammar.
"""
from pymeta3.grammar import OMetaGrammar, NullOptimizer
g = OMetaGrammar(dedent(grammar))
tree = g.parseGrammar('TestGrammar', TreeBuilder)
opt = NullOptimizer([tree])
opt.builder = TreeBuilder("TestGrammar", opt)
tree, err = opt.apply("grammar")
grammarClass = moduleFromGrammar(tree, 'TestGrammar', OMetaBase, {})
return HandyWrapper(grammarClass)
def test_bindingAccess(self):
"""
Bound names in a rule can be accessed on the grammar's "locals" dict.
"""
gg = self.classTested("stuff = '1':a ('2':b | '3':c)")
t = gg.parseGrammar('TestGrammar', TreeBuilder)
G = moduleFromGrammar(t, 'TestGrammar', OMetaBase, {})
g = G("12")
self.assertEqual(g.apply("stuff")[0], '2')
self.assertEqual(g.locals['stuff']['a'], '1')
self.assertEqual(g.locals['stuff']['b'], '2')
g = G("13")
self.assertEqual(g.apply("stuff")[0], '3')
self.assertEqual(g.locals['stuff']['a'], '1')
self.assertEqual(g.locals['stuff']['c'], '3')
def test_bindingAccess(self):
"""
Bound names in a rule can be accessed on the grammar's "locals" dict.
"""
gg = self.classTested("stuff = '1':a ('2':b | '3':c)")
t = gg.parseGrammar('TestGrammar', TreeBuilder)
G = moduleFromGrammar(t, 'TestGrammar', OMetaBase, {})
g = G("12")
self.assertEqual(g.apply("stuff")[0], '2')
self.assertEqual(g.locals['stuff']['a'], '1')
self.assertEqual(g.locals['stuff']['b'], '2')
g = G("13")
self.assertEqual(g.apply("stuff")[0], '3')
self.assertEqual(g.locals['stuff']['a'], '1')
self.assertEqual(g.locals['stuff']['c'], '3')
