def __init__(self, grammar_file):
'''
GrammarEngine.grammar returns a Grammar object
to get the actual dictionary, do GrammarEngine.grammar.grammar
'''
self.grammar = GrammarEngine(grammar_file).grammar.grammar
self.verbose = False
def __init__(self, grammar):
self.string = ""
self.words = []
self.engine = GrammarEngine(grammar)
self.RDP = RecursiveDescentParser(self.engine, False)
self.nonterminals = self.engine.get_nonterminals(grammar)
self.terminals = self.engine.get_terminals(grammar)
def component2():
grammar_engine = GrammarEngine("component2.txt")
grammar = grammar_engine.grammar
parser = RecursiveDescentParser(grammar, False)
result = parser.parse("Joe said Buster ghosted Schiller", "S")
##keys = grammar.keys()
# for symbol in grammar:
# rules[symbol] = grammar[symbol].body
# print(rules)
# print(grammar.variables)
print(result)
def component4():
grammar_engine = GrammarEngine("component4.txt")
grammar = grammar_engine.grammar
generated_texts = []
for i in range(1):
text = grammar_engine.generate("origin")
generated_texts.append(text)
final_sentence = " ".join(generated_texts)
print(final_sentence)
parser = IslandParser(grammar)
result = parser.parse(final_sentence)
for element in result:
substrings = element.split()
print(substrings[0][1:] + ":" + substrings[1][:-1])
def change_verb(doc):
'''
Find the synonym of the verb
'''
verb = find_verb(doc)
grammar = GrammarEngine("verb.txt").grammar
rule = grammar.find(verb).rules
index = random.randint(0, len(rule)-1)
new_verb = str(rule[index])[7:-3]
new_sentence = ""
for word in doc:
if word.text == verb:
new_sentence = new_sentence + " " + new_verb
elif len(new_sentence) > 0:
new_sentence = new_sentence + " " + word.text
else:
new_sentence = word.text
return new_sentence
while length >= 1:
start = 0
while start <= len(fragments) - length:
# get the substring
substring = " ".join(fragments[start:start + length])
# parse the substring
for symbol in self.grammar.grammar.keys(
): # try out all symbols
result = self.parser.parse(string=substring,
start_symbol_name=symbol)
parse_already_exists = False
# if the result is not None, that means there was a successful parse
if result != None:
# check if the result is a subset of some other partial parse
for parse in self.partial_parses:
if result in parse:
parse_already_exists = True
# if it's not a subset of any of the existing parses, add it to the list
if not parse_already_exists:
self.partial_parses.append(result)
# move the window
start += 1
# decrease the length of the expected substring
length -= 1
if __name__ == "__main__":
grammar = GrammarEngine("component4.txt").grammar
parser = IslandParser(grammar=grammar, verbose=False)
string = "Hello, I am Yemi, a senior CS major. I live in Cassat. A usual day looks like this for me: I wake up at 11 and go to work after having ramen for breakfast. After that, I drop my stuff in Cassat, have lunch in LDC, and then work in Little Joy."
print(parser.parse(string=string))