Build, test, and debug regular expressions
This case-insensitive regular expression matches the literal string "DL_CaseState" followed by an alphanumeric value, separated by optional non-word characters like equals signs or spaces. It is specifically designed for parsing dynamic search queries or filter strings to extract a specific state parameter. The trailing negative lookahead asserts that the matched value is not directly followed by the logical operators "and" or "or", preventing incorrect matches in complex boolean logic.