def subprghead():
line = tokens[0]
token = peek_token()
global line_number
line_number = get_line_number()
if token == 'function':
match('function')
line = tokens[0]
match('id')
# var_type = subprghead_()
test = nodes
node = nodes[0]
green_node = GreenNode(line[1], "temptype")
node.left_child = green_node
for n in nodes:
if n.data == green_node.data:
green_node_duplicated(line_number, green_node.data)
nodes.insert(0, green_node)
var_type = subprghead_()
green_node.return_type = var_type
variable_types.update({line[1]: var_type})
return var_type
else:
# synch_set = ['function', 'begin', 'var']
del synch_set[:]
synch_set.append('function')
synch_set.append('begin')
synch_set.append('var')
handle_sync()
syntax_error(token, 'function')
def prg():
global line_number
line_number = get_line_number()
token = peek_token()
if token == 'program':
match('program')
token = tokens[0]
match('id')
green_node = GreenNode(token[1], 'pname')
green_node.previous_node = "root"
nodes.insert(0, green_node)
# print nodes
match('(')
idlist()
match(')')
match(';')
prg_()
else:
del synch_set[:]
synch_set.append('$')
handle_sync()
syntax_error(token, 'program')
