Regex Editor & Tester

Matches a line-ending sequence captured in a named group 'train': a leading `<[...]` bracket block containing only non-alphanumeric characters followed by a dot, then zero or more `.[...]` blocks containing only alphanumeric characters (each flanked by dots). With the global and multiline flags, it extracts such sequences at the end of every line in multi-line input, useful for parsing structured token chains like `<[---]..[ab12].` from text.