def process_input(expr, env):
"""Process an input expr, which may be a fact or query."""
if expr == 'exit':
print("Goodbye")
sys.exit(0)
if not scheme_listp(expr):
print('Improperly formed expression.')
elif expr.first in ("fact", "!"):
facts.append(expr.second)
elif expr.first in ("query", "?"):
results = do_query(expr.second)
success = False
for result in results:
if not success:
print('Success!')
success = True
output = "\t".join("{0}: {1}".format(k[1:], v) for k, v in result)
if output:
print(output)
if not success:
print('Failed.')
elif expr.first == "load":
scheme.scheme_load(expr.second.first, env)
else:
print("Please provide a fact or query.")
def process_input(expr, env):
"""Process an input expr, which may be a fact or query."""
if expr is exit_sym:
print("Goodbye")
sys.exit(0)
elif expr is clear_sym:
facts.clear()
elif expr is help_sym:
print(HELP_MSG)
elif not scheme_listp(expr):
print('Error: Improperly formed expression.', file=sys.stderr)
elif expr.first in fact_syms:
facts.append(expr.second)
elif expr.first in query_syms:
results = do_query(expr.second)
success = False
for result in results:
if not success:
print('Success!')
success = True
output = "\t".join("{0}: {1}".format(str(k)[1:], v)
for k, v in result)
if output:
print(output)
if not success:
print('Failed.')
elif expr.first is load_sym and scheme_length(expr) == 2:
scheme.scheme_load(expr.second.first, env)
elif expr.first is depth_sym and scheme_length(expr) == 2 \
and scheme_integerp(expr[1]):
DEPTH_LIMIT = int(expr[1])
else:
print("Error: unrecognized command: please provide a fact or query.",
file=sys.stderr)
def process_input(expr, env):
"""Process an input expr, which may be a fact or query."""
if expr == 'exit':
print("Goodbye")
sys.exit(0)
if not scheme_listp(expr):
print('Improperly formed expression.')
elif expr.first in ("fact", "!"):
facts.append(expr.second)
elif expr.first in ("query", "?"):
results = do_query(expr.second)
success = False
for result in results:
if not success:
print('Success!')
success = True
output = "\t".join("{0}: {1}".format(k[1:], v) for k, v in result)
if output:
print(output)
if not success:
print('Failed.')
elif expr.first == "load":
scheme.scheme_load(expr.second.first, env)
else:
print("Please provide a fact or query.")
def process_input(expr, env):
"""Process an input expr, which may be a fact or query."""
assert scheme_listp(expr)
if expr.first in ("fact", "!"):
facts.append(expr.second)
elif expr.first in ("query", "?"):
results = do_query(expr.second)
success = False
for result in results:
if not success:
print('Success!')
success = True
print("\t".join("{0}: {1}".format(k[1:], v) for k, v in result))
if not success:
print('Failed.')
elif expr.first == "load":
scheme.scheme_load(expr.second.first, env)
else:
print("Please provide a fact or query.")
