Regex Tester & Validator

Intended to capture a 'Video' tag (e.g., '[Video:{123}]'), but the pattern is malformed. It actually matches a non-digit char, literal 'Vide', then a '[' or letter (the [[a-zA-Z] character class), followed by ':', a literal '{', zero or more digits, '}' and ']'. PCRE treats the {\d*} as literal braces since it isn't a valid quantifier. Strings like 'aVide[:{42}]' would match, so it needs fixing before reliably extracting video tags.