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annotate roundup/dehtml.py @ 7800:2d4684e4702d

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fix: enhancement to history command output and % template fix. Rather than using the key field, use the label field for descriptions. Call cls.labelprop(default_to_id=True) so it returns id rather than the first sorted property name. If labelprop() returns 'id' or 'title', we return nothing. 'id' means there is no label set and no properties named 'name' or 'title'. So have the caller do whatever it wants (prepend classname for example) when there is no human readable name. This prevents %(name)s%(key)s from producing: 23(23). Also don't accept the 'title' property. Titles can be too long. Arguably we could: '%(name)20s' to limit the title length. However without ellipses or something truncating the title might be confusing. So again pretend there is no human readable name.
author John Rouillard <rouilj@ieee.org>
date Tue, 12 Mar 2024 11:52:17 -0400
parents 6079440ac023
children b68a1d8fd5d9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 from __future__ import print_function
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3
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4 import sys
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5
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6 from roundup.anypy.strings import u2s, uchr
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7
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8 _pyver = sys.version_info[0]
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11 class dehtml:
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12 def __init__(self, converter):
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13 if converter == "none":
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14 self.html2text = None
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15 return
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17 try:
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18 if converter == "beautifulsoup":
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19 # Not as well tested as dehtml.
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20 from bs4 import BeautifulSoup
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22 def html2text(html):
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23 soup = BeautifulSoup(html, "html.parser")
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25 # kill all script and style elements
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26 for script in soup(["script", "style"]):
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27 script.extract()
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29 return u2s(soup.get_text("\n", strip=True))
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31 self.html2text = html2text
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32 else:
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33 raise ImportError
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34 except ImportError:
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35 # use the fallback below if beautiful soup is not installed.
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36 try:
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37 # Python 3+.
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38 from html.entities import name2codepoint
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39 from html.parser import HTMLParser
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40 except ImportError:
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41 # Python 2.
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42 from htmlentitydefs import name2codepoint
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43 from HTMLParser import HTMLParser
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45 class DumbHTMLParser(HTMLParser):
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46 # class attribute
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47 text = ""
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48
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49 # internal state variable
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50 _skip_data = False
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51 _last_empty = False
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52
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53 def handle_data(self, data):
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54 if self._skip_data: # skip data in script or style block
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55 return
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57 if (data.strip() == ""):
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58 # reduce multiple blank lines to 1
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59 if (self._last_empty):
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60 return
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61 else:
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62 self._last_empty = True
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63 else:
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64 self._last_empty = False
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65
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66 self.text = self.text + data
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67
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68 def handle_starttag(self, tag, attrs):
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69 if (tag == "p"):
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70 self.text = self.text + "\n"
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71 if (tag in ("style", "script")):
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72 self._skip_data = True
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73
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74 def handle_endtag(self, tag):
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75 if (tag in ("style", "script")):
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76 self._skip_data = False
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77
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78 def handle_entityref(self, name):
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79 if self._skip_data:
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80 return
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81 c = uchr(name2codepoint[name])
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82 try:
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83 self.text = self.text + c
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84 except UnicodeEncodeError:
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85 # print a space as a placeholder
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86 self.text = self.text + " "
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87
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88 def html2text(html):
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89 if _pyver == 3:
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90 parser = DumbHTMLParser(convert_charrefs=True)
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91 else:
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92 parser = DumbHTMLParser()
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93 parser.feed(html)
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94 parser.close()
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95 return parser.text
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97 self.html2text = html2text
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98
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99
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100 if __name__ == "__main__":
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101 html = """
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102 <body>
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103 <script>
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104 this must not be in output
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105 </script>
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106 <style>
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107 p {display:block}
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108 </style>
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109 <div class="header"><h1>Roundup</h1>
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110 <div id="searchbox" style="display: none">
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111 <form class="search" action="../search.html" method="get">
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112 <input type="text" name="q" size="18" />
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113 <input type="submit" value="Search" />
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114 <input type="hidden" name="check_keywords" value="yes" />
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115 <input type="hidden" name="area" value="default" />
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116 </form>
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117 </div>
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118 <script type="text/javascript">$('#searchbox').show(0);</script>
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119 </div>
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120 <ul class="current">
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121 <li class="toctree-l1"><a class="reference internal" href="../index.html">Home</a></li>
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122 <li class="toctree-l1"><a class="reference external" href="http://pypi.python.org/pypi/roundup">Download</a></li>
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123 <li class="toctree-l1 current"><a class="reference internal" href="../docs.html">Docs</a><ul class="current">
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124 <li class="toctree-l2"><a class="reference internal" href="features.html">Roundup Features</a></li>
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125 <li class="toctree-l2 current"><a class="current reference internal" href="">Installing Roundup</a></li>
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126 <li class="toctree-l2"><a class="reference internal" href="upgrading.html">Upgrading to newer versions of Roundup</a></li>
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127 <li class="toctree-l2"><a class="reference internal" href="FAQ.html">Roundup FAQ</a></li>
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128 <li class="toctree-l2"><a class="reference internal" href="user_guide.html">User Guide</a></li>
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129 <li class="toctree-l2"><a class="reference internal" href="customizing.html">Customising Roundup</a></li>
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130 <li class="toctree-l2"><a class="reference internal" href="admin_guide.html">Administration Guide</a></li>
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131 </ul>
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132 <div class="section" id="prerequisites">
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133 <h2><a class="toc-backref" href="#id5">Prerequisites</a></h2>
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134 <p>Roundup requires Python 2.5 or newer (but not Python 3) with a functioning
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135 anydbm module. Download the latest version from <a class="reference external" href="http://www.python.org/">http://www.python.org/</a>.
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136 It is highly recommended that users install the latest patch version
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137 of python as these contain many fixes to serious bugs.</p>
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138 <p>Some variants of Linux will need an additional &#8220;python dev&#8221; package
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139 installed for Roundup installation to work. Debian and derivatives, are
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140 known to require this.</p>
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141 <p>If you&#8217;re on windows, you will either need to be using the ActiveState python
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142 distribution (at <a class="reference external" href="http://www.activestate.com/Products/ActivePython/">http://www.activestate.com/Products/ActivePython/</a>), or you&#8217;ll
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143 have to install the win32all package separately (get it from
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144 <a class="reference external" href="http://starship.python.net/crew/mhammond/win32/">http://starship.python.net/crew/mhammond/win32/</a>).</p>
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145 <script>
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146 &lt; HELP &GT;
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147 </script>
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148 </div>
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149 </body>
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150 """
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151
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152 html2text = dehtml("dehtml").html2text
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153 if html2text:
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154 print(html2text(html))
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155
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156 try:
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157 # trap error seen if N_TOKENS not defined when run.
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158 html2text = dehtml("beautifulsoup").html2text
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159 if html2text:
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160 print(html2text(html))
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161 except NameError as e:
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162 print("captured error %s" % e)
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163
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164 html2text = dehtml("none").html2text
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165 if html2text:
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166 print("FAIL: Error, dehtml(none) is returning a function")
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167 else:
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168 print("PASS: dehtml(none) is returning None")
Roundup Issue Tracker: http://roundup-tracker.org/