def extract_tokens(l, known_tokens):
 assert ((l[0].strip() == '(') and (l[(-1)].strip() == ')')), ValueError(l)
 result = {}
 result_has_key = result.has_key
 result.update(known_tokens)
 i = 0
 l_len = len(l)
 while (i < l_len):
  if result_has_key(l[i]):
   token = l[i]
   i += 1
   if (i < l_len):
    if result_has_key(l[i]):
     result[token] = ()
    elif (l[i] == '('):
     i += 1
     start = i
     while ((i < l_len) and (l[i] != ')')):
      i += 1
     result[token] = tuple(filter((lambda v: (v != '$')), l[start:i]))
     i += 1
    else:
     result[token] = (l[i],)
     i += 1
  else:
   i += 1
 return result

def extract_tokens ( l , known_tokens ) : assert ( ( l [ 0 ] . strip ( ) == '(' ) and ( l [ ( - 1 ) ] . strip ( ) == ')' ) ) , ValueError ( l ) result = { } result_has_key = result . has_key result . update ( known_tokens ) i = 0 l_len = len ( l ) while ( i < l_len ) : if result_has_key ( l [ i ] ) : token = l [ i ] i += 1 if ( i < l_len ) : if result_has_key ( l [ i ] ) : result [ token ] = ( ) elif ( l [ i ] == '(' ) : i += 1 start = i while ( ( i < l_len ) and ( l [ i ] != ')' ) ) : i += 1 result [ token ] = tuple ( filter ( ( lambda v : ( v != '$' ) ) , l [ start : i ] ) ) i += 1 else : result [ token ] = ( l [ i ] , ) i += 1 else : i += 1 return result
returns dictionary of known tokens with all values .