def load(filename):
"""Load a database by generating code for the interpreter
to execute. Return a new phonebook
"""
try:
f = open(str(filename), 'r')
except:
print "oops, file not found"
return []
entries = f.readlines()
pbook = []
for entry in entries:
values = entry.split(';')
lexed = parser.lexer("add %s %s" % (values[1], values[0]))
succ, parsed = parser.parse(lexed)
if succ:
pbook = exe(pbook, parsed)
else:
print "error, bad filetype"
return []
if len(values) > 2:
for i in range(len(values) - 2):
lexed = parser.lexer("alias %s %s" % (values[1], \
values[i + 2]))
succ, parsed = parser.parse(lexed)
if succ:
pbook = exe(pbook, parsed)
else:
print "error, bad filetype"
return []
f.close()
return pbook
def main():
pbook = []
if len(sys.argv) > 1:
# if a file is an argument
for line in open(sys.argv[1], 'r'):
l = line.strip('\n')
print prompt,
print l
succ, tree = parser.parse(parser.lexer(l))
if succ:
pbook = exe(pbook, tree)
else:
print tree
else:
while True:
try:
a = raw_input(prompt)
except:
break
succ, tree = parser.parse(parser.lexer(a))
if len(tree) == 0:
print "not a keyword"
elif succ:
pbook = exe(pbook, tree)
elif not succ:
print tree
def main():
print(' +' + '~' * 45 + '+')
print(' | T U L K K I L A U S E L O G I I K A L L E |')
print(' +' + '~' * 45 + '+')
inputstring, tautology = getArgs()
tokens, labels = parser.lexer(inputstring)
if parser.T_INVALID not in tokens:
print("\n Leksikaalinen analyysi ok.")
parseTree = parser.syntacticAnalysis(tokens, labels)
if parseTree: # (Syntactic analysis returns valid parse tree if ok, else 'False')
print(" Syntaktinen analyysi ok.")
parseTree.printTree()
print(
' LAUSE:\n ',
inputstring.replace('v', ' v ').replace('&', ' & ').replace(
'->', ' -> ').replace('< ->', ' <-> '))
ids = parser.askTruthValues(labels, tokens)
terms = [
] # Use 'terms' as a stack of all the terms from the parse tree (in post order)
parser.getTermsInPostOrder(parseTree, terms, ids)
# Form 'pretty' strings for output:
statement = ' '.join(labels).replace('~ ', '~').replace(
'( ', '(').replace(' )', ')')
statementWithThruthValues = statement
for key, val in ids.items():
statementWithThruthValues = statementWithThruthValues.replace(
key, str(val))
print(' +' + '~' * (len(statement) + 28) + '|')
print(" | Lause", statementWithThruthValues, "ON",
"TOSI" if parser.testStatement(terms) else "EPÄTOSI")
if tautology:
tautology = parser.checkTautology(parseTree, ids)
print(" | \n | Lause", statement,
"ON TAUTOLOGIA" if tautology else "EI OLE TAUTOLOGIA")
print(' +' + '~' * (len(statement) + 28) + '|')
print(' Ohjelma lopetettu.')
else:
print(" Tarkista syntaksi!")
else:
for i, token in enumerate(tokens):
if parser.T_INVALID == token:
print(" Tarkista lause, termi nro %d virheellinen (%s)" %
(i + 1, labels[i]))
