Regex Tester & Validator

This regular expression is designed to extract a table name or data source from a specific MapServer mapfile layer named "z155e4d1dde106c_point_test". It utilizes case-insensitive and single-line (dotall) flags to search across multiple lines, looking for a `data` keyword that is explicitly not part of the word `metadata`. It then captures the string following the `from` clause inside the quoted data block, which typically represents the database table or file path being referenced.