Add a new rule or replace the target for an existing rule.
(self, rule, method, target, name=None)
| 353 | yield prefix + rule[offset:], None, None |
| 354 | |
| 355 | def add(self, rule, method, target, name=None): |
| 356 | """ Add a new rule or replace the target for an existing rule. """ |
| 357 | anons = 0 # Number of anonymous wildcards found |
| 358 | keys = [] # Names of keys |
| 359 | pattern = '' # Regular expression pattern with named groups |
| 360 | filters = [] # Lists of wildcard input filters |
| 361 | builder = [] # Data structure for the URL builder |
| 362 | is_static = True |
| 363 | |
| 364 | for key, mode, conf in self._itertokens(rule): |
| 365 | if mode: |
| 366 | is_static = False |
| 367 | if mode == 'default': mode = self.default_filter |
| 368 | mask, in_filter, out_filter = self.filters[mode](conf) |
| 369 | if not key: |
| 370 | pattern += '(?:%s)' % mask |
| 371 | key = 'anon%d' % anons |
| 372 | anons += 1 |
| 373 | else: |
| 374 | pattern += '(?P<%s>%s)' % (key, mask) |
| 375 | keys.append(key) |
| 376 | if in_filter: filters.append((key, in_filter)) |
| 377 | builder.append((key, out_filter or str)) |
| 378 | elif key: |
| 379 | pattern += re.escape(key) |
| 380 | builder.append((None, key)) |
| 381 | |
| 382 | self.builder[rule] = builder |
| 383 | if name: self.builder[name] = builder |
| 384 | |
| 385 | if is_static and not self.strict_order: |
| 386 | self.static.setdefault(method, {}) |
| 387 | self.static[method][self.build(rule)] = (target, None) |
| 388 | return |
| 389 | |
| 390 | try: |
| 391 | re_pattern = re.compile('^(%s)$' % pattern) |
| 392 | re_match = re_pattern.match |
| 393 | except re.error as e: |
| 394 | raise RouteSyntaxError("Could not add Route: %s (%s)" % (rule, e)) |
| 395 | |
| 396 | if filters: |
| 397 | |
| 398 | def getargs(path): |
| 399 | url_args = re_match(path).groupdict() |
| 400 | for name, wildcard_filter in filters: |
| 401 | try: |
| 402 | url_args[name] = wildcard_filter(url_args[name]) |
| 403 | except ValueError: |
| 404 | raise HTTPError(400, 'Path has wrong format.') |
| 405 | return url_args |
| 406 | elif re_pattern.groupindex: |
| 407 | |
| 408 | def getargs(path): |
| 409 | return re_match(path).groupdict() |
| 410 | else: |
| 411 | getargs = None |
| 412 |
no test coverage detected