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  1. module Twitter
  2. class Regex
  3. REGEXEN[:valid_general_url_path_chars] = /[^\p{White_Space}<>\(\)\?]/iou
  4. REGEXEN[:valid_url_path_ending_chars] = /[^\p{White_Space}\(\)\?!\*"'「」<>;:=\,\.\$%\[\]~&\|@]|(?:#{REGEXEN[:valid_url_balanced_parens]})/iou
  5. REGEXEN[:valid_url_balanced_parens] = /
  6. \(
  7. (?:
  8. #{REGEXEN[:valid_general_url_path_chars]}+
  9. |
  10. # allow one nested level of balanced parentheses
  11. (?:
  12. #{REGEXEN[:valid_general_url_path_chars]}*
  13. \(
  14. #{REGEXEN[:valid_general_url_path_chars]}+
  15. \)
  16. #{REGEXEN[:valid_general_url_path_chars]}*
  17. )
  18. )
  19. \)
  20. /iox
  21. REGEXEN[:valid_url_path] = /(?:
  22. (?:
  23. #{REGEXEN[:valid_general_url_path_chars]}*
  24. (?:#{REGEXEN[:valid_url_balanced_parens]} #{REGEXEN[:valid_general_url_path_chars]}*)*
  25. #{REGEXEN[:valid_url_path_ending_chars]}
  26. )|(?:#{REGEXEN[:valid_general_url_path_chars]}+\/)
  27. )/iox
  28. REGEXEN[:valid_url] = %r{
  29. ( # $1 total match
  30. (#{REGEXEN[:valid_url_preceding_chars]}) # $2 Preceding character
  31. ( # $3 URL
  32. ((https?|dat|dweb|ipfs|ipns|ssb|gopher):\/\/)? # $4 Protocol (optional)
  33. (#{REGEXEN[:valid_domain]}) # $5 Domain(s)
  34. (?::(#{REGEXEN[:valid_port_number]}))? # $6 Port number (optional)
  35. (/#{REGEXEN[:valid_url_path]}*)? # $7 URL Path and anchor
  36. (\?#{REGEXEN[:valid_url_query_chars]}*#{REGEXEN[:valid_url_query_ending_chars]})? # $8 Query String
  37. )
  38. )
  39. }iox
  40. end
  41. end