def run(self):
"""
Keeps the graph database and continously running in the terminal
and parses the input.
"""
while True:
if verbose:
# Prints out the graph structure for verbose output
self.gs.display()
commands = []
#sys.stdout.write(">>> ")
command = raw_input(">>> ")
while True:
#command = raw_input(">>> ")
if (len(command) != 0 and command[-1] == ";"):
commands.append(command)
break
commands.append(command)
command = raw_input("... ")
command_str = " ".join(commands)
# Start the parser and parse the commands
if (command_str[-1] == ";"):
real_command = command_str[:-1] + " ;" # need to add space for parser
parser = Parser(real_command)
parser.run()
else:
print "ERROR INVALID QUERY"
# Check if user entered any errors in query.
# If there are no errors, then create linker
if (not(self.has_Errors(parser))):
linker = Linker(parser.get_object_list(), self.gs)
linker.execute()
# Else, print the error
else:
print "Invalid Query"
def run(self):
"""
Keeps the graph database and continously running in the terminal
and parses the input.
"""
while True:
if verbose:
# Prints out the graph structure for verbose output
self.gs.display()
commands = []
#sys.stdout.write(">>> ")
command = raw_input(">>> ")
while True:
#command = raw_input(">>> ")
if (len(command) != 0 and command[-1] == ";"):
commands.append(command)
break
commands.append(command)
command = raw_input("... ")
command_str = " ".join(commands)
# Start the parser and parse the commands
if (command_str[-1] == ";"):
real_command = command_str[:-1] + " ;" # need to add space for parser
parser = Parser(real_command)
parser.run()
else:
print "ERROR INVALID QUERY"
# Check if user entered any errors in query.
# If there are no errors, then create linker
if (not (self.has_Errors(parser))):
linker = Linker(parser.get_object_list(), self.gs)
linker.execute()
# Else, print the error
else:
print "Invalid Query"
def __init__(self, gs, filename):
"""
Constructor takes a L{GraphStructure} object, a parser object, and
a file name as arguments. It will execute all of the commands that are
in the file.
"""
self.gs = gs
f = open(filename, 'r')
# Every line in the file is a command
for line in f:
# Skips blank lines and commented lines in text file
if (len(line.split()) == 0) or (line[0] == '#'):
continue
# Assert that line ends with semicolon
if line.split()[-1][-1] != ';':
print "Invalid file format! Every line must end with a semicolon."
break
# Add a space before semicolon for parser. This ensures that
# commands can end with a semicolon right after the last word
# in the command.
arr = line.split()
arr[-1] = arr[-1][:-1] + ' ;'
command = " ".join(arr)
# Run the parser.
parser = Parser(command)
parser.run()
# Extract the created objects from the parser and execute the linker.
linker = Linker(parser.get_object_list(), self.gs)
linker.execute()
f.close()
def __init__(self, gs, filename):
"""
Constructor takes a L{GraphStructure} object, a parser object, and
a file name as arguments. It will execute all of the commands that are
in the file.
"""
self.gs = gs
f = open(filename, 'r')
# Every line in the file is a command
for line in f:
# Skips blank lines and commented lines in text file
if (len(line.split()) == 0) or (line[0] == '#'):
continue
# Assert that line ends with semicolon
if line.split()[-1][-1] != ';':
print "Invalid file format! Every line must end with a semicolon."
break
# Add a space before semicolon for parser. This ensures that
# commands can end with a semicolon right after the last word
# in the command.
arr = line.split()
arr[-1] = arr[-1][:-1] + ' ;'
command = " ".join(arr)
# Run the parser.
parser = Parser(command)
parser.run()
# Extract the created objects from the parser and execute the linker.
linker = Linker(parser.get_object_list(), self.gs)
linker.execute()
f.close()
