def makeGrammar(cls, grammar, name='Grammar'):
"""
Define a new parser class with the rules in the given grammar.
@param grammar: A string containing a PyMeta grammar.
@param name: The name of the class to be generated.
@param superclass: The class the generated class is a child of.
"""
g = cls(grammar)
if TIMING:
start = time.time()
tree = g.parseGrammar(name)
if TIMING:
print "Grammar %r parsed in %g secs" % (name, time.time() - start)
def cnt(n):
count = sum(cnt(a) for a in n.args) + 1
return count
print "%d nodes." % (cnt(tree))
start = time.time()
modname = "pymeta_grammar__" + name
filename = "/pymeta_generated_code/" + modname + ".py"
source = writePython(tree, grammar)
if TIMING:
print "Grammar %r generated in %g secs" % (name, time.time() - start)
return moduleFromGrammar(source, name, modname, filename)
def makeGrammar(cls, grammar, name='Grammar'):
"""
Define a new parser class with the rules in the given grammar.
@param grammar: A string containing a PyMeta grammar.
@param name: The name of the class to be generated.
@param superclass: The class the generated class is a child of.
"""
g = cls(grammar)
if TIMING:
start = time.time()
tree = g.parseGrammar(name)
if TIMING:
print "Grammar %r parsed in %g secs" % (name, time.time() - start)
def cnt(n):
count = sum(cnt(a) for a in n.args) + 1
return count
print "%d nodes." % (cnt(tree))
start = time.time()
modname = "pymeta_grammar__" + name
filename = "/pymeta_generated_code/" + modname + ".py"
source = writePython(tree)
if TIMING:
print "Grammar %r generated in %g secs" % (name,
time.time() - start)
return moduleFromGrammar(source, name, modname, filename)
def makeGrammar(cls, grammar, name):
"""
Define a new parser class with the rules in the given grammar.
@param grammar: A string containing a PyMeta grammar.
@param globals: A dict of names that should be accessible by this
grammar.
@param name: The name of the class to be generated.
@param superclass: The class the generated class is a child of.
"""
g = cls(grammar)
tree = g.parseGrammar(name)
modname = "pymeta_grammar__" + name
filename = "/pymeta_generated_code/" + modname + ".py"
source = g.writeTerm(tree)
return moduleFromGrammar(source, name, modname, filename)
def makeGrammar(cls, grammar, name):
"""
Define a new parser class with the rules in the given grammar.
@param grammar: A string containing a PyMeta grammar.
@param globals: A dict of names that should be accessible by this
grammar.
@param name: The name of the class to be generated.
@param superclass: The class the generated class is a child of.
"""
g = cls(grammar)
tree = g.parseGrammar(name)
modname = "pymeta_grammar__" + name
filename = "/pymeta_generated_code/" + modname + ".py"
source = g.writeTerm(tree)
return moduleFromGrammar(source, name, modname, filename)
