Build, test, and debug regular expressions
This PCRE regex matches Jenkins log entries by capturing the timestamp and the subsequent log details into named groups: `time` and `thread`. It specifically looks for a date and time format featuring a 3-letter month, 2-digit day, 4-digit year, and a 12-hour clock with an AM/PM marker (e.g., "Jan 01, 2023 1:00:00 PM"). This pattern is ideally suited for log aggregation tools like Fluentd to parse, filter, and route Jenkins server or build logs.