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import pgf
import sys
import sets
import readline
sys.stdout.write("loading...")
sys.stdout.flush();
gr = pgf.readPGF("../../../treebanks/PennTreebank/ParseEngAbs.pgf")
sys.stdout.write("\n")
source_lang = gr.languages["ParseEng"]
target_lang = gr.languages["ParseBul"]
we = pgf.readExpr("UttImpSg PPos (ImpVP (UseV try_V))")
print source_lang.linearize(we)
sys.stdout.write("start cat: "+gr.startCat+"\n\n")
class Completer():
def __init__(self, lang):
self.gr = lang
def complete(self, prefix, state):
if state == 0:
line = readline.get_line_buffer()
line = line[0:readline.get_begidx()]
self.i = source_lang.getCompletions(line, prefix=prefix)
self.tokens = sets.Set()
if len(self.tokens) > 50:
return None
while True:
try:
(p,t) = self.i.next()
if t not in self.tokens:
self.tokens.add(t)
return t
except StopIteration:
return None
completer = Completer(source_lang)
readline.set_completer(completer.complete)
readline.parse_and_bind("tab: complete")
while True:
try:
line = raw_input("> ");
except EOFError:
sys.stdout.write("\n")
readline.set_completer(None)
break
except KeyboardInterrupt:
sys.stdout.write("\n")
readline.set_completer(None)
break
try:
for (p,e) in source_lang.parse(line, n=1):
sys.stdout.write("["+str(p)+"] "+str(e)+"\n")
print target_lang.linearize(e)
except pgf.ParseError as e:
print e.message
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