Build, test, and debug regular expressions
This regex matches text patterns typical in Crusader Kings 3 localization and event files, supporting both Latin and Cyrillic (Russian) character sets. It captures entries that begin with optional prefixes like hashtags, dollar signs, or brackets, followed by alphanumeric content including punctuation, and ending with bracket or symbol delimiters. Useful for parsing or validating CK3 mod localization strings, event text, and variable references in plain-text game files.