/Demo/xml/rss2html.py

http://unladen-swallow.googlecode.com/ · Python · 91 lines · 56 code · 19 blank · 16 comment · 13 complexity · 96f910edd622e18a228ef9f18be052cc MD5 · raw file 

    

  1. import sys
    2. 

  2. 

  3. from xml.sax import make_parser, handler
    4. 

  4. 

  5. # --- Templates
    6. 

  6. 

  7. top = \
    8. 

  8. """
    9. 

  9. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    10. 

  10. <HTML>
    11. 

  11. <HEAD>
    12. 

  12.   <TITLE>%s</TITLE>
    13. 

  13. </HEAD>
    14. 

  14. 

  15. <BODY>
    16. 

  16. <H1>%s</H1>
    17. 

  17. """
    18. 

    19. 

  19. bottom = \
    20. 

  20. """
    21. 

  21. </ul>
    22. 

  22. 

  23. <HR>
    24. 

  24. <ADDRESS>
    25. 

  25. Converted to HTML by sax_rss2html.py.
    26. 

  26. </ADDRESS>
    27. 

  27. 

  28. </BODY>
    29. 

  29. </HTML>
    30. 

  30. """
    31. 

    32. 

  32. # --- The ContentHandler
    33. 

  33. 

  34. class RSSHandler(handler.ContentHandler):
    35. 

  35. 

  36.     def __init__(self, out = sys.stdout):
    37. 

  37.         handler.ContentHandler.__init__(self)
    38. 

  38.         self._out = out
    39. 

  39. 

  40.         self._text = ""
    41. 

  41.         self._parent = None
    42. 

  42.         self._list_started = 0
    43. 

  43.         self._title = None
    44. 

  44.         self._link = None
    45. 

  45.         self._descr = ""
    46. 

  46. 

  47.     # ContentHandler methods
    48. 

  48. 

  49.     def startElement(self, name, attrs):
    50. 

  50.         if name == "channel" or name == "image" or name == "item":
    51. 

  51.             self._parent = name
    52. 

  52. 

  53.         self._text = ""
    54. 

  54. 

  55.     def endElement(self, name):
    56. 

  56.         if self._parent == "channel":
    57. 

  57.             if name == "title":
    58. 

  58.                 self._out.write(top % (self._text, self._text))
    59. 

  59.             elif name == "description":
    60. 

  60.                 self._out.write("<p>%s</p>\n" % self._text)
    61. 

  61. 

  62.         elif self._parent == "item":
    63. 

  63.             if name == "title":
    64. 

  64.                 self._title = self._text
    65. 

  65.             elif name == "link":
    66. 

  66.                 self._link = self._text
    67. 

  67.             elif name == "description":
    68. 

  68.                 self._descr = self._text
    69. 

  69.             elif name == "item":
    70. 

  70.                 if not self._list_started:
    71. 

  71.                     self._out.write("<ul>\n")
    72. 

  72.                     self._list_started = 1
    73. 

  73. 

  74.                 self._out.write('  <li><a href="%s">%s</a> %s\n' %
    75. 

  75.                                 (self._link, self._title, self._descr))
    76. 

  76. 

  77.                 self._title = None
    78. 

  78.                 self._link = None
    79. 

  79.                 self._descr = ""
    80. 

  80. 

  81.         if name == "rss":
    82. 

  82.             self._out.write(bottom)
    83. 

  83. 

  84.     def characters(self, content):
    85. 

  85.         self._text = self._text + content
    86. 

  86. 

  87. # --- Main program
    88. 

  88. 

  89. parser = make_parser()
    90. 

  90. parser.setContentHandler(RSSHandler())
    91. 

  91. parser.parse(sys.argv[1])
    92.