Test, validate and match regular expressions
Matches URL paths containing '/post/find/' followed by zero or more digits, capturing the path prefix in group 1. Typically used to identify or extract post lookup URLs like '/post/find/12345' in routing rules, log parsing, or rewrite configurations. The trailing '\/{0}' quantifier requires exactly zero forward slashes, making it a no-op, so the pattern effectively ends after the digits. Works line-by-line with global multiline flags.