if args.derivation:
output_derivation = True
else:
output_derivation = False
if args.stack:
output_stack = True
else:
output_stack = False
if parse:
parse_table = getParseTable()
rulz = getRules()
terminals = getTerminals()
parser = Parser(rulz, terminals, parse_table, input_string)
if output:
op = open(args.output, 'w')
# parser._parse(print_stack=False,print_derivation=False,print_symtables=False,op_file=op)
parser._parse(print_stack=output_stack,
print_derivation=output_derivation,
print_symtables=output_tables,
op_file=op,
second_pass=True)
op.close
else:
# parser._parse(print_stack=False,print_derivation=False,print_symtables=False)
parser._parse(print_stack=output_stack,
print_derivation=output_derivation,
print_symtables=output_tables,
second_pass=True)
with open('code_sample.txt') as file:
input_string = file.read()
# tokeniser = Lexer(input_string)
# token = tokeniser.nextToken()
# while token[0] != '$':
# print(token)
# token = tokeniser.nextToken()
parse_table = getParseTable()
rulz = getRules()
terminals = getTerminals()
parser = Parser(rulz, terminals, parse_table, input_string)
parser._parse(False)
parser._parse(print_stack=False,
print_derivation=False,
print_symtables=True,
second_pass=True)
# table = SymbolTable('table')
# table.addSymbol('f1', 'function', ['float','int[2][2]', 'float'])
# table.addSymbol('f2', 'function', ['float'])
# table.addSymbol('class2', 'class', None)
# table.addSymbol('var1','variable','int[2]')
# table.printTable()
# table2 = SymbolTable('otra_cosa')
# table.printTable()
# table2.printTable()
## Fill the table according to slide 4-18
for rule in rulz:
for t in terminals:
if t in rule._first:
parse_table[rule._symbol][t] = rule
if 'EPSILON' in rule._first:
for t2 in terminals:
if t2 in rule._follow:
parse_table[rule._symbol][t2] = rule
with open('code_sample_from_assignment.txt') as file:
input_string = file.read()
parser = Parser()
parser._setInput(input_string)
parser._parse(rulz, terminals, parse_table, print_stack=True)
###############################################
####### End parse table implementation ########
###############################################
###
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#####
###
#
###############################################
#### Begin command line call implementation ###
###############################################
