def demo():
from nltk import Nonterminal, ContextFreeGrammar
nonterminals = 'S VP NP PP P N Name V Det'
(S, VP, NP, PP, P, N, Name, V, Det) = [Nonterminal(s)
for s in nonterminals.split()]
grammar = ContextFreeGrammar.fromstring("""
S -> NP VP
PP -> P NP
NP -> Det N
NP -> NP PP
VP -> V NP
VP -> VP PP
Det -> 'a'
Det -> 'the'
Det -> 'my'
NP -> 'I'
N -> 'dog'
N -> 'man'
N -> 'park'
N -> 'statue'
V -> 'saw'
P -> 'in'
P -> 'up'
P -> 'over'
P -> 'with'
""")
def cb(grammar): print(grammar)
top = Tk()
editor = CFGEditor(top, grammar, cb)
Label(top, text='\nTesting CFG Editor\n').pack()
Button(top, text='Quit', command=top.destroy).pack()
top.mainloop()
def demo2():
from nltk import Nonterminal, Production, ContextFreeGrammar
nonterminals = 'S VP NP PP P N Name V Det'
(S, VP, NP, PP, P, N, Name, V, Det) = [Nonterminal(s)
for s in nonterminals.split()]
productions = (
# Syntactic Productions
Production(S, [NP, VP]),
Production(NP, [Det, N]),
Production(NP, [NP, PP]),
Production(VP, [VP, PP]),
Production(VP, [V, NP, PP]),
Production(VP, [V, NP]),
Production(PP, [P, NP]),
Production(PP, []),
Production(PP, ['up', 'over', NP]),
# Lexical Productions
Production(NP, ['I']), Production(Det, ['the']),
Production(Det, ['a']), Production(N, ['man']),
Production(V, ['saw']), Production(P, ['in']),
Production(P, ['with']), Production(N, ['park']),
Production(N, ['dog']), Production(N, ['statue']),
Production(Det, ['my']),
)
grammar = ContextFreeGrammar(S, productions)
text = 'I saw a man in the park'.split()
d=CFGDemo(grammar, text)
d.mainloop()
def demo2():
from nltk import Nonterminal, Production, CFG
nonterminals = "S VP NP PP P N Name V Det"
(S, VP, NP, PP, P, N, Name, V,
Det) = [Nonterminal(s) for s in nonterminals.split()]
productions = (
# Syntactic Productions
Production(S, [NP, VP]),
Production(NP, [Det, N]),
Production(NP, [NP, PP]),
Production(VP, [VP, PP]),
Production(VP, [V, NP, PP]),
Production(VP, [V, NP]),
Production(PP, [P, NP]),
Production(PP, []),
Production(PP, ["up", "over", NP]),
# Lexical Productions
Production(NP, ["I"]),
Production(Det, ["the"]),
Production(Det, ["a"]),
Production(N, ["man"]),
Production(V, ["saw"]),
Production(P, ["in"]),
Production(P, ["with"]),
Production(N, ["park"]),
Production(N, ["dog"]),
Production(N, ["statue"]),
Production(Det, ["my"]),
)
grammar = CFG(S, productions)
text = "I saw a man in the park".split()
d = CFGDemo(grammar, text)
d.mainloop()
def demo():
from nltk import Nonterminal, CFG
nonterminals = 'S VP NP PP P N Name V Det'
(S, VP, NP, PP, P, N, Name, V, Det) = [Nonterminal(s)
for s in nonterminals.split()]
grammar = CFG.fromstring("""
S -> NP VP
PP -> P NP
NP -> Det N
NP -> NP PP
VP -> V NP
VP -> VP PP
Det -> 'a'
Det -> 'the'
Det -> 'my'
NP -> 'I'
N -> 'dog'
N -> 'man'
N -> 'park'
N -> 'statue'
V -> 'saw'
P -> 'in'
P -> 'up'
P -> 'over'
P -> 'with'
""")
def cb(grammar): print(grammar)
top = Tk()
editor = CFGEditor(top, grammar, cb)
Label(top, text='\nTesting CFG Editor\n').pack()
Button(top, text='Quit', command=top.destroy).pack()
top.mainloop()
def demo2():
from nltk import Nonterminal, Production, CFG
nonterminals = 'S VP NP PP P N Name V Det'
(S, VP, NP, PP, P, N, Name, V, Det) = [Nonterminal(s)
for s in nonterminals.split()]
productions = (
# Syntactic Productions
Production(S, [NP, VP]),
Production(NP, [Det, N]),
Production(NP, [NP, PP]),
Production(VP, [VP, PP]),
Production(VP, [V, NP, PP]),
Production(VP, [V, NP]),
Production(PP, [P, NP]),
Production(PP, []),
Production(PP, ['up', 'over', NP]),
# Lexical Productions
Production(NP, ['I']), Production(Det, ['the']),
Production(Det, ['a']), Production(N, ['man']),
Production(V, ['saw']), Production(P, ['in']),
Production(P, ['with']), Production(N, ['park']),
Production(N, ['dog']), Production(N, ['statue']),
Production(Det, ['my']),
)
grammar = CFG(S, productions)
text = 'I saw a man in the park'.split()
d=CFGDemo(grammar, text)
d.mainloop()
def demo2():
from nltk import Nonterminal, Production, ContextFreeGrammar
nonterminals = "S VP NP PP P N Name V Det"
(S, VP, NP, PP, P, N, Name, V, Det) = [Nonterminal(s) for s in nonterminals.split()]
productions = (
# Syntactic Productions
Production(S, [NP, VP]),
Production(NP, [Det, N]),
Production(NP, [NP, PP]),
Production(VP, [VP, PP]),
Production(VP, [V, NP, PP]),
Production(VP, [V, NP]),
Production(PP, [P, NP]),
Production(PP, []),
Production(PP, ["up", "over", NP]),
# Lexical Productions
Production(NP, ["I"]),
Production(Det, ["the"]),
Production(Det, ["a"]),
Production(N, ["man"]),
Production(V, ["saw"]),
Production(P, ["in"]),
Production(P, ["with"]),
Production(N, ["park"]),
Production(N, ["dog"]),
Production(N, ["statue"]),
Production(Det, ["my"]),
)
grammar = ContextFreeGrammar(S, productions)
text = "I saw a man in the park".split()
d = CFGDemo(grammar, text)
d.mainloop()