Regex Tester & Validator

This regular expression matches abbreviated or localized Scandinavian and Dutch days of the week ending in "dag" (such as Onsdag, Fredag) followed by a date in a day/month numeric format (e.g., 5/12 or 25/12). It is case-insensitive and specifically designed to parse localized event schedules, logs, or calendar entries. The pattern captures the day and date combination, assuming the preceding day names use standard ASCII characters.