def _parse(blob, filename=None, lineno=None):
size = 0
p1 = blob.find('(')
p2 = blob.find(')')
p3 = blob.find('{')
p4 = blob.find('\n')
if p1 == -1 or p2 == -1 or p3 == -1:
warn('Invalid function declaration - missing tokens', filename=filename, lineno=lineno)
return
if p2 < p1 or p3 < p1 or p3 < p2 or (p4 != -1 and p4 < p1):
warn('Invalid function declaration - wrong token order', filename=filename, lineno=lineno)
return
name = blob[9:p1].rstrip()
if not verify_identifier(name, True):
warn('Invalid identifier \'{}\''.format(name), filename=filename, lineno=lineno)
return
args = _parse_args(blob[p1 + 1:p2])
if args and '::' in name:
args = args[1:]
if args != None:
return {
'name': name,
'args': args,
'code': blob[:p2 + 1]
}
warn('Invalid argument list', filename=filename, lineno=lineno)
def _parse_args(text):
if not text.split():
return []
split = map(lambda v: v.strip(), text.split(','))
for item in split:
if not item or item[0] != '%' or not verify_identifier(item[1:]):
return
return map(lambda v: v[1:], split)
def _parse_args(text):
if not text.split():
return [], False
split = map(lambda v: v.strip(), text.split(','))
args = []
mult = False
for item in split:
optional = False
if item == '...':
mult = True
continue
if len(item) > 2 and item[0] == '[' and item[-1] == ']':
optional = True
item = item[1:-1]
split_item = item.split()
if len(split_item) > 2:
return None, False
item_name = split_item[-1]
item_type = split_item[0] if len(split_item) == 2 else ''
if not verify_identifier(item_name):
return None, False
args.append({
'name': item_name,
'type': item_type,
'optional': optional
})
return args, mult
