How to check for nesting in Regular Expression?

Question

Programming

There is a string consisting of letters, but punctuation marks can also be present in it, provided that they are inside angle brackets. Prompt RV

Answer 1

angle brackets are included in posix and perl punctuation.
takchto punctuation must be listed explicitly.
that is, for example
([буквы ]|<([буквы ]|[знаки_без_скобок])*>)*