Test, validate and match regular expressions
This regex matches the literal text 'age ' followed by zero or more digits, any single character, and a newline, then captures the entire following line. With global and multiline flags enabled, it's useful in NLP pipelines for extracting content that appears on the line after an age declaration, such as parsing medical records, census data, or semi-structured text documents. The optional digit matching and wildcard before the newline provide flexibility for varying age formats.