asctime.py 2.3 KB

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  1. # Copyright 2010-2023 Kurt McKee <contactme@kurtmckee.org>
  2. # Copyright 2002-2008 Mark Pilgrim
  3. # All rights reserved.
  4. #
  5. # This file is a part of feedparser.
  6. #
  7. # Redistribution and use in source and binary forms, with or without
  8. # modification, are permitted provided that the following conditions are met:
  9. #
  10. # * Redistributions of source code must retain the above copyright notice,
  11. # this list of conditions and the following disclaimer.
  12. # * Redistributions in binary form must reproduce the above copyright notice,
  13. # this list of conditions and the following disclaimer in the documentation
  14. # and/or other materials provided with the distribution.
  15. #
  16. # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
  17. # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18. # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19. # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  20. # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21. # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22. # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23. # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24. # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25. # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26. # POSSIBILITY OF SUCH DAMAGE.
  27. from .rfc822 import _parse_date_rfc822
  28. _months = [
  29. 'jan',
  30. 'feb',
  31. 'mar',
  32. 'apr',
  33. 'may',
  34. 'jun',
  35. 'jul',
  36. 'aug',
  37. 'sep',
  38. 'oct',
  39. 'nov',
  40. 'dec',
  41. ]
  42. def _parse_date_asctime(dt):
  43. """Parse asctime-style dates.
  44. Converts asctime to RFC822-compatible dates and uses the RFC822 parser
  45. to do the actual parsing.
  46. Supported formats (format is standardized to the first one listed):
  47. * {weekday name} {month name} dd hh:mm:ss {+-tz} yyyy
  48. * {weekday name} {month name} dd hh:mm:ss yyyy
  49. """
  50. parts = dt.split()
  51. # Insert a GMT timezone, if needed.
  52. if len(parts) == 5:
  53. parts.insert(4, '+0000')
  54. # Exit if there are not six parts.
  55. if len(parts) != 6:
  56. return None
  57. # Reassemble the parts in an RFC822-compatible order and parse them.
  58. return _parse_date_rfc822(' '.join([
  59. parts[0], parts[2], parts[1], parts[5], parts[3], parts[4],
  60. ]))