The mnas-string system is intended for:
- parsing a real number;
- splitting a string into substrings;
- replacing all occurrences of a substring in a string;
- replacing multiple occurrences of a pattern with a single one;
- preparing a string as an argument for a like SQL query;
- framing a string with a prefix and a postfix;
- outputting the date and time representation to a stream or string;
- string tracing.
https://mnasoft.ddns.mksat.net/Common-Lisp-Programs/mnas-string/обзор.html