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annotate planemo/lib/python3.7/site-packages/bs4/__init__.py @ 0:d30785e31577 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:18:57 -0400
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1 """Beautiful Soup Elixir and Tonic - "The Screen-Scraper's Friend".
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2
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3 http://www.crummy.com/software/BeautifulSoup/
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4
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5 Beautiful Soup uses a pluggable XML or HTML parser to parse a
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6 (possibly invalid) document into a tree representation. Beautiful Soup
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7 provides methods and Pythonic idioms that make it easy to navigate,
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8 search, and modify the parse tree.
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9
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10 Beautiful Soup works with Python 2.7 and up. It works better if lxml
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11 and/or html5lib is installed.
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12
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13 For more than you ever wanted to know about Beautiful Soup, see the
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14 documentation: http://www.crummy.com/software/BeautifulSoup/bs4/doc/
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15 """
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16
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17 __author__ = "Leonard Richardson (leonardr@segfault.org)"
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18 __version__ = "4.9.1"
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19 __copyright__ = "Copyright (c) 2004-2020 Leonard Richardson"
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20 # Use of this source code is governed by the MIT license.
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21 __license__ = "MIT"
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22
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23 __all__ = ['BeautifulSoup']
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24
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25 import os
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26 import re
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27 import sys
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28 import traceback
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29 import warnings
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30
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31 from .builder import builder_registry, ParserRejectedMarkup
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32 from .dammit import UnicodeDammit
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33 from .element import (
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34 CData,
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35 Comment,
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36 DEFAULT_OUTPUT_ENCODING,
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37 Declaration,
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38 Doctype,
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39 NavigableString,
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40 PageElement,
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41 ProcessingInstruction,
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42 PYTHON_SPECIFIC_ENCODINGS,
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43 ResultSet,
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44 Script,
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45 Stylesheet,
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46 SoupStrainer,
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47 Tag,
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48 TemplateString,
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49 )
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50
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51 # The very first thing we do is give a useful error if someone is
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52 # running this code under Python 3 without converting it.
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53 'You are trying to run the Python 2 version of Beautiful Soup under Python 3. This will not work.'!='You need to convert the code, either by installing it (`python setup.py install`) or by running 2to3 (`2to3 -w bs4`).'
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54
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55 # Define some custom warnings.
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56 class GuessedAtParserWarning(UserWarning):
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57 """The warning issued when BeautifulSoup has to guess what parser to
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58 use -- probably because no parser was specified in the constructor.
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59 """
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60
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61 class MarkupResemblesLocatorWarning(UserWarning):
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62 """The warning issued when BeautifulSoup is given 'markup' that
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63 actually looks like a resource locator -- a URL or a path to a file
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64 on disk.
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65 """
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66
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67
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68 class BeautifulSoup(Tag):
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69 """A data structure representing a parsed HTML or XML document.
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70
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71 Most of the methods you'll call on a BeautifulSoup object are inherited from
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72 PageElement or Tag.
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73
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74 Internally, this class defines the basic interface called by the
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75 tree builders when converting an HTML/XML document into a data
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76 structure. The interface abstracts away the differences between
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77 parsers. To write a new tree builder, you'll need to understand
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78 these methods as a whole.
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79
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80 These methods will be called by the BeautifulSoup constructor:
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81 * reset()
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82 * feed(markup)
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83
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84 The tree builder may call these methods from its feed() implementation:
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85 * handle_starttag(name, attrs) # See note about return value
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86 * handle_endtag(name)
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87 * handle_data(data) # Appends to the current data node
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88 * endData(containerClass) # Ends the current data node
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89
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90 No matter how complicated the underlying parser is, you should be
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91 able to build a tree using 'start tag' events, 'end tag' events,
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92 'data' events, and "done with data" events.
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93
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94 If you encounter an empty-element tag (aka a self-closing tag,
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95 like HTML's <br> tag), call handle_starttag and then
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96 handle_endtag.
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97 """
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98
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99 # Since BeautifulSoup subclasses Tag, it's possible to treat it as
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100 # a Tag with a .name. This name makes it clear the BeautifulSoup
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101 # object isn't a real markup tag.
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102 ROOT_TAG_NAME = '[document]'
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103
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104 # If the end-user gives no indication which tree builder they
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105 # want, look for one with these features.
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106 DEFAULT_BUILDER_FEATURES = ['html', 'fast']
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107
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108 # A string containing all ASCII whitespace characters, used in
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109 # endData() to detect data chunks that seem 'empty'.
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110 ASCII_SPACES = '\x20\x0a\x09\x0c\x0d'
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111
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112 NO_PARSER_SPECIFIED_WARNING = "No parser was explicitly specified, so I'm using the best available %(markup_type)s parser for this system (\"%(parser)s\"). This usually isn't a problem, but if you run this code on another system, or in a different virtual environment, it may use a different parser and behave differently.\n\nThe code that caused this warning is on line %(line_number)s of the file %(filename)s. To get rid of this warning, pass the additional argument 'features=\"%(parser)s\"' to the BeautifulSoup constructor.\n"
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113
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114 def __init__(self, markup="", features=None, builder=None,
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115 parse_only=None, from_encoding=None, exclude_encodings=None,
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116 element_classes=None, **kwargs):
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117 """Constructor.
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118
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119 :param markup: A string or a file-like object representing
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120 markup to be parsed.
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121
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122 :param features: Desirable features of the parser to be
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123 used. This may be the name of a specific parser ("lxml",
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124 "lxml-xml", "html.parser", or "html5lib") or it may be the
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125 type of markup to be used ("html", "html5", "xml"). It's
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126 recommended that you name a specific parser, so that
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127 Beautiful Soup gives you the same results across platforms
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128 and virtual environments.
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129
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130 :param builder: A TreeBuilder subclass to instantiate (or
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131 instance to use) instead of looking one up based on
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132 `features`. You only need to use this if you've implemented a
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133 custom TreeBuilder.
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134
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135 :param parse_only: A SoupStrainer. Only parts of the document
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136 matching the SoupStrainer will be considered. This is useful
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137 when parsing part of a document that would otherwise be too
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138 large to fit into memory.
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139
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140 :param from_encoding: A string indicating the encoding of the
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141 document to be parsed. Pass this in if Beautiful Soup is
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142 guessing wrongly about the document's encoding.
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143
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144 :param exclude_encodings: A list of strings indicating
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145 encodings known to be wrong. Pass this in if you don't know
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146 the document's encoding but you know Beautiful Soup's guess is
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147 wrong.
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148
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149 :param element_classes: A dictionary mapping BeautifulSoup
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150 classes like Tag and NavigableString, to other classes you'd
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151 like to be instantiated instead as the parse tree is
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152 built. This is useful for subclassing Tag or NavigableString
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153 to modify default behavior.
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154
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155 :param kwargs: For backwards compatibility purposes, the
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156 constructor accepts certain keyword arguments used in
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157 Beautiful Soup 3. None of these arguments do anything in
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158 Beautiful Soup 4; they will result in a warning and then be
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159 ignored.
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160
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161 Apart from this, any keyword arguments passed into the
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162 BeautifulSoup constructor are propagated to the TreeBuilder
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163 constructor. This makes it possible to configure a
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164 TreeBuilder by passing in arguments, not just by saying which
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165 one to use.
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166 """
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167 if 'convertEntities' in kwargs:
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168 del kwargs['convertEntities']
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169 warnings.warn(
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170 "BS4 does not respect the convertEntities argument to the "
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171 "BeautifulSoup constructor. Entities are always converted "
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172 "to Unicode characters.")
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173
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174 if 'markupMassage' in kwargs:
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175 del kwargs['markupMassage']
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176 warnings.warn(
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177 "BS4 does not respect the markupMassage argument to the "
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178 "BeautifulSoup constructor. The tree builder is responsible "
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179 "for any necessary markup massage.")
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180
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181 if 'smartQuotesTo' in kwargs:
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182 del kwargs['smartQuotesTo']
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183 warnings.warn(
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184 "BS4 does not respect the smartQuotesTo argument to the "
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185 "BeautifulSoup constructor. Smart quotes are always converted "
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186 "to Unicode characters.")
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187
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188 if 'selfClosingTags' in kwargs:
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189 del kwargs['selfClosingTags']
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190 warnings.warn(
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191 "BS4 does not respect the selfClosingTags argument to the "
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192 "BeautifulSoup constructor. The tree builder is responsible "
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193 "for understanding self-closing tags.")
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194
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195 if 'isHTML' in kwargs:
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196 del kwargs['isHTML']
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197 warnings.warn(
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198 "BS4 does not respect the isHTML argument to the "
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199 "BeautifulSoup constructor. Suggest you use "
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200 "features='lxml' for HTML and features='lxml-xml' for "
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201 "XML.")
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202
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203 def deprecated_argument(old_name, new_name):
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204 if old_name in kwargs:
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205 warnings.warn(
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206 'The "%s" argument to the BeautifulSoup constructor '
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207 'has been renamed to "%s."' % (old_name, new_name))
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208 value = kwargs[old_name]
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209 del kwargs[old_name]
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210 return value
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211 return None
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212
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213 parse_only = parse_only or deprecated_argument(
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214 "parseOnlyThese", "parse_only")
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215
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216 from_encoding = from_encoding or deprecated_argument(
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217 "fromEncoding", "from_encoding")
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218
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219 if from_encoding and isinstance(markup, str):
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220 warnings.warn("You provided Unicode markup but also provided a value for from_encoding. Your from_encoding will be ignored.")
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221 from_encoding = None
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222
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223 self.element_classes = element_classes or dict()
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224
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225 # We need this information to track whether or not the builder
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226 # was specified well enough that we can omit the 'you need to
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227 # specify a parser' warning.
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228 original_builder = builder
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229 original_features = features
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230
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231 if isinstance(builder, type):
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232 # A builder class was passed in; it needs to be instantiated.
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233 builder_class = builder
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234 builder = None
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235 elif builder is None:
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236 if isinstance(features, str):
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237 features = [features]
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238 if features is None or len(features) == 0:
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239 features = self.DEFAULT_BUILDER_FEATURES
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240 builder_class = builder_registry.lookup(*features)
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241 if builder_class is None:
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242 raise FeatureNotFound(
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243 "Couldn't find a tree builder with the features you "
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244 "requested: %s. Do you need to install a parser library?"
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245 % ",".join(features))
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246
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247 # At this point either we have a TreeBuilder instance in
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248 # builder, or we have a builder_class that we can instantiate
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249 # with the remaining **kwargs.
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250 if builder is None:
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251 builder = builder_class(**kwargs)
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252 if not original_builder and not (
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253 original_features == builder.NAME or
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254 original_features in builder.ALTERNATE_NAMES
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255 ):
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256 if builder.is_xml:
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257 markup_type = "XML"
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258 else:
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259 markup_type = "HTML"
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260
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261 # This code adapted from warnings.py so that we get the same line
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262 # of code as our warnings.warn() call gets, even if the answer is wrong
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parents:
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263 # (as it may be in a multithreading situation).
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264 caller = None
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265 try:
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266 caller = sys._getframe(1)
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267 except ValueError:
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268 pass
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269 if caller:
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270 globals = caller.f_globals
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271 line_number = caller.f_lineno
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272 else:
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273 globals = sys.__dict__
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274 line_number= 1
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275 filename = globals.get('__file__')
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276 if filename:
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277 fnl = filename.lower()
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278 if fnl.endswith((".pyc", ".pyo")):
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279 filename = filename[:-1]
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280 if filename:
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281 # If there is no filename at all, the user is most likely in a REPL,
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282 # and the warning is not necessary.
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283 values = dict(
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284 filename=filename,
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285 line_number=line_number,
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286 parser=builder.NAME,
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287 markup_type=markup_type
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288 )
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289 warnings.warn(
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290 self.NO_PARSER_SPECIFIED_WARNING % values,
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291 GuessedAtParserWarning, stacklevel=2
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292 )
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293 else:
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294 if kwargs:
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295 warnings.warn("Keyword arguments to the BeautifulSoup constructor will be ignored. These would normally be passed into the TreeBuilder constructor, but a TreeBuilder instance was passed in as `builder`.")
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296
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297 self.builder = builder
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298 self.is_xml = builder.is_xml
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299 self.known_xml = self.is_xml
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300 self._namespaces = dict()
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301 self.parse_only = parse_only
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302
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303 self.builder.initialize_soup(self)
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304
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305 if hasattr(markup, 'read'): # It's a file-type object.
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306 markup = markup.read()
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307 elif len(markup) <= 256 and (
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308 (isinstance(markup, bytes) and not b'<' in markup)
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309 or (isinstance(markup, str) and not '<' in markup)
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310 ):
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311 # Print out warnings for a couple beginner problems
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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312 # involving passing non-markup to Beautiful Soup.
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313 # Beautiful Soup will still parse the input as markup,
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314 # just in case that's what the user really wants.
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315 if (isinstance(markup, str)
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316 and not os.path.supports_unicode_filenames):
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317 possible_filename = markup.encode("utf8")
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318 else:
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319 possible_filename = markup
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320 is_file = False
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321 try:
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322 is_file = os.path.exists(possible_filename)
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323 except Exception as e:
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324 # This is almost certainly a problem involving
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325 # characters not valid in filenames on this
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326 # system. Just let it go.
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327 pass
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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328 if is_file:
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329 warnings.warn(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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330 '"%s" looks like a filename, not markup. You should'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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331 ' probably open this file and pass the filehandle into'
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332 ' Beautiful Soup.' % self._decode_markup(markup),
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333 MarkupResemblesLocatorWarning
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334 )
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335 self._check_markup_is_url(markup)
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336
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337 rejections = []
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338 success = False
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339 for (self.markup, self.original_encoding, self.declared_html_encoding,
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340 self.contains_replacement_characters) in (
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341 self.builder.prepare_markup(
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342 markup, from_encoding, exclude_encodings=exclude_encodings)):
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343 self.reset()
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344 try:
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345 self._feed()
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346 success = True
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347 break
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348 except ParserRejectedMarkup as e:
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349 rejections.append(e)
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350 pass
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351
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352 if not success:
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353 other_exceptions = [str(e) for e in rejections]
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354 raise ParserRejectedMarkup(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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355 "The markup you provided was rejected by the parser. Trying a different parser or a different encoding may help.\n\nOriginal exception(s) from parser:\n " + "\n ".join(other_exceptions)
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356 )
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357
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358 # Clear out the markup and remove the builder's circular
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359 # reference to this object.
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360 self.markup = None
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361 self.builder.soup = None
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362
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363 def __copy__(self):
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364 """Copy a BeautifulSoup object by converting the document to a string and parsing it again."""
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365 copy = type(self)(
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366 self.encode('utf-8'), builder=self.builder, from_encoding='utf-8'
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367 )
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368
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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369 # Although we encoded the tree to UTF-8, that may not have
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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370 # been the encoding of the original markup. Set the copy's
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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371 # .original_encoding to reflect the original object's
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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372 # .original_encoding.
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373 copy.original_encoding = self.original_encoding
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374 return copy
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375
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376 def __getstate__(self):
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377 # Frequently a tree builder can't be pickled.
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378 d = dict(self.__dict__)
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379 if 'builder' in d and not self.builder.picklable:
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380 d['builder'] = None
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381 return d
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382
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383 @classmethod
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384 def _decode_markup(cls, markup):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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385 """Ensure `markup` is bytes so it's safe to send into warnings.warn.
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386
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387 TODO: warnings.warn had this problem back in 2010 but it might not
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388 anymore.
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389 """
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390 if isinstance(markup, bytes):
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391 decoded = markup.decode('utf-8', 'replace')
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392 else:
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393 decoded = markup
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394 return decoded
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395
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396 @classmethod
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397 def _check_markup_is_url(cls, markup):
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398 """Error-handling method to raise a warning if incoming markup looks
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399 like a URL.
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400
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401 :param markup: A string.
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402 """
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403 if isinstance(markup, bytes):
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404 space = b' '
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405 cant_start_with = (b"http:", b"https:")
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406 elif isinstance(markup, str):
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407 space = ' '
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408 cant_start_with = ("http:", "https:")
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409 else:
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410 return
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411
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412 if any(markup.startswith(prefix) for prefix in cant_start_with):
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413 if not space in markup:
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414 warnings.warn(
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415 '"%s" looks like a URL. Beautiful Soup is not an'
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416 ' HTTP client. You should probably use an HTTP client like'
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417 ' requests to get the document behind the URL, and feed'
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418 ' that document to Beautiful Soup.' % cls._decode_markup(
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419 markup
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420 ),
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421 MarkupResemblesLocatorWarning
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422 )
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423
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424 def _feed(self):
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425 """Internal method that parses previously set markup, creating a large
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426 number of Tag and NavigableString objects.
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427 """
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428 # Convert the document to Unicode.
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429 self.builder.reset()
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430
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431 self.builder.feed(self.markup)
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432 # Close out any unfinished strings and close all the open tags.
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433 self.endData()
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434 while self.currentTag.name != self.ROOT_TAG_NAME:
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435 self.popTag()
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436
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437 def reset(self):
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438 """Reset this object to a state as though it had never parsed any
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439 markup.
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440 """
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441 Tag.__init__(self, self, self.builder, self.ROOT_TAG_NAME)
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442 self.hidden = 1
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443 self.builder.reset()
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444 self.current_data = []
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445 self.currentTag = None
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446 self.tagStack = []
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447 self.preserve_whitespace_tag_stack = []
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448 self.string_container_stack = []
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449 self.pushTag(self)
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450
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451 def new_tag(self, name, namespace=None, nsprefix=None, attrs={},
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452 sourceline=None, sourcepos=None, **kwattrs):
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453 """Create a new Tag associated with this BeautifulSoup object.
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454
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455 :param name: The name of the new Tag.
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456 :param namespace: The URI of the new Tag's XML namespace, if any.
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457 :param prefix: The prefix for the new Tag's XML namespace, if any.
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458 :param attrs: A dictionary of this Tag's attribute values; can
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459 be used instead of `kwattrs` for attributes like 'class'
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460 that are reserved words in Python.
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461 :param sourceline: The line number where this tag was
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462 (purportedly) found in its source document.
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463 :param sourcepos: The character position within `sourceline` where this
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464 tag was (purportedly) found.
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465 :param kwattrs: Keyword arguments for the new Tag's attribute values.
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466
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467 """
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468 kwattrs.update(attrs)
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469 return self.element_classes.get(Tag, Tag)(
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470 None, self.builder, name, namespace, nsprefix, kwattrs,
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471 sourceline=sourceline, sourcepos=sourcepos
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472 )
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473
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474 def string_container(self, base_class=None):
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475 container = base_class or NavigableString
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476
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477 # There may be a general override of NavigableString.
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478 container = self.element_classes.get(
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479 container, container
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480 )
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481
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482 # On top of that, we may be inside a tag that needs a special
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483 # container class.
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484 if self.string_container_stack:
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485 container = self.builder.string_containers.get(
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486 self.string_container_stack[-1].name, container
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487 )
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488 return container
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489
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490 def new_string(self, s, subclass=None):
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491 """Create a new NavigableString associated with this BeautifulSoup
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492 object.
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493 """
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494 container = self.string_container(subclass)
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495 return container(s)
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496
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497 def insert_before(self, successor):
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498 """This method is part of the PageElement API, but `BeautifulSoup` doesn't implement
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499 it because there is nothing before or after it in the parse tree.
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500 """
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501 raise NotImplementedError("BeautifulSoup objects don't support insert_before().")
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502
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503 def insert_after(self, successor):
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504 """This method is part of the PageElement API, but `BeautifulSoup` doesn't implement
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505 it because there is nothing before or after it in the parse tree.
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506 """
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507 raise NotImplementedError("BeautifulSoup objects don't support insert_after().")
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508
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509 def popTag(self):
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510 """Internal method called by _popToTag when a tag is closed."""
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511 tag = self.tagStack.pop()
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512 if self.preserve_whitespace_tag_stack and tag == self.preserve_whitespace_tag_stack[-1]:
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513 self.preserve_whitespace_tag_stack.pop()
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514 if self.string_container_stack and tag == self.string_container_stack[-1]:
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515 self.string_container_stack.pop()
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516 #print("Pop", tag.name)
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517 if self.tagStack:
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518 self.currentTag = self.tagStack[-1]
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519 return self.currentTag
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diff changeset
520
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
521 def pushTag(self, tag):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
522 """Internal method called by handle_starttag when a tag is opened."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
523 #print("Push", tag.name)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524 if self.currentTag is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525 self.currentTag.contents.append(tag)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 self.tagStack.append(tag)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 self.currentTag = self.tagStack[-1]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 if tag.name in self.builder.preserve_whitespace_tags:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 self.preserve_whitespace_tag_stack.append(tag)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 if tag.name in self.builder.string_containers:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 self.string_container_stack.append(tag)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 def endData(self, containerClass=None):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 """Method called by the TreeBuilder when the end of a data segment
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 occurs.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 containerClass = self.string_container(containerClass)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 if self.current_data:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 current_data = ''.join(self.current_data)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 # If whitespace is not preserved, and this string contains
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 # nothing but ASCII spaces, replace it with a single space
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
543 # or newline.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 if not self.preserve_whitespace_tag_stack:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545 strippable = True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
546 for i in current_data:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
547 if i not in self.ASCII_SPACES:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548 strippable = False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 break
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550 if strippable:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
551 if '\n' in current_data:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
552 current_data = '\n'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554 current_data = ' '
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
555
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
556 # Reset the data collector.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
557 self.current_data = []
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
558
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
559 # Should we add this string to the tree at all?
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
560 if self.parse_only and len(self.tagStack) <= 1 and \
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
561 (not self.parse_only.text or \
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 not self.parse_only.search(current_data)):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563 return
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
564
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
565 o = containerClass(current_data)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 self.object_was_parsed(o)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
568 def object_was_parsed(self, o, parent=None, most_recent_element=None):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 """Method called by the TreeBuilder to integrate an object into the parse tree."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 if parent is None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 parent = self.currentTag
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
572 if most_recent_element is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
573 previous_element = most_recent_element
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
574 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
575 previous_element = self._most_recent_element
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
576
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
577 next_element = previous_sibling = next_sibling = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
578 if isinstance(o, Tag):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
579 next_element = o.next_element
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
580 next_sibling = o.next_sibling
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
581 previous_sibling = o.previous_sibling
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
582 if previous_element is None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
583 previous_element = o.previous_element
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
584
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
585 fix = parent.next_element is not None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
586
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
587 o.setup(parent, previous_element, next_element, previous_sibling, next_sibling)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
588
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
589 self._most_recent_element = o
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
590 parent.contents.append(o)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
591
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
592 # Check if we are inserting into an already parsed node.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 if fix:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594 self._linkage_fixer(parent)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596 def _linkage_fixer(self, el):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 """Make sure linkage of this fragment is sound."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 first = el.contents[0]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 child = el.contents[-1]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601 descendant = child
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 if child is first and el.parent is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604 # Parent should be linked to first child
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 el.next_element = child
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606 # We are no longer linked to whatever this element is
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 prev_el = child.previous_element
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608 if prev_el is not None and prev_el is not el:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609 prev_el.next_element = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 # First child should be linked to the parent, and no previous siblings.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611 child.previous_element = el
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 child.previous_sibling = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 # We have no sibling as we've been appended as the last.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615 child.next_sibling = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617 # This index is a tag, dig deeper for a "last descendant"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
618 if isinstance(child, Tag) and child.contents:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 descendant = child._last_descendant(False)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621 # As the final step, link last descendant. It should be linked
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622 # to the parent's next sibling (if found), else walk up the chain
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623 # and find a parent with a sibling. It should have no next sibling.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624 descendant.next_element = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 descendant.next_sibling = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626 target = el
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 while True:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628 if target is None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
629 break
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
630 elif target.next_sibling is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 descendant.next_element = target.next_sibling
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632 target.next_sibling.previous_element = child
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 break
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 target = target.parent
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 def _popToTag(self, name, nsprefix=None, inclusivePop=True):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 """Pops the tag stack up to and including the most recent
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
638 instance of the given tag.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
639
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 :param name: Pop up to the most recent tag with this name.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 :param nsprefix: The namespace prefix that goes with `name`.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 :param inclusivePop: It this is false, pops the tag stack up
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
643 to but *not* including the most recent instqance of the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 given tag.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 #print("Popping to %s" % name)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647 if name == self.ROOT_TAG_NAME:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 # The BeautifulSoup object itself can never be popped.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
649 return
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
650
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
651 most_recently_popped = None
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652
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653 stack_size = len(self.tagStack)
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diff changeset
654 for i in range(stack_size - 1, 0, -1):
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655 t = self.tagStack[i]
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656 if (name == t.name and nsprefix == t.prefix):
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diff changeset
657 if inclusivePop:
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658 most_recently_popped = self.popTag()
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diff changeset
659 break
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660 most_recently_popped = self.popTag()
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diff changeset
661
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662 return most_recently_popped
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diff changeset
663
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664 def handle_starttag(self, name, namespace, nsprefix, attrs, sourceline=None,
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diff changeset
665 sourcepos=None):
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diff changeset
666 """Called by the tree builder when a new tag is encountered.
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diff changeset
667
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668 :param name: Name of the tag.
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669 :param nsprefix: Namespace prefix for the tag.
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diff changeset
670 :param attrs: A dictionary of attribute values.
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diff changeset
671 :param sourceline: The line number where this tag was found in its
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
672 source document.
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diff changeset
673 :param sourcepos: The character position within `sourceline` where this
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diff changeset
674 tag was found.
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diff changeset
675
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676 If this method returns None, the tag was rejected by an active
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diff changeset
677 SoupStrainer. You should proceed as if the tag had not occurred
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678 in the document. For instance, if this was a self-closing tag,
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diff changeset
679 don't call handle_endtag.
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680 """
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681 # print("Start tag %s: %s" % (name, attrs))
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682 self.endData()
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683
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684 if (self.parse_only and len(self.tagStack) <= 1
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diff changeset
685 and (self.parse_only.text
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686 or not self.parse_only.search_tag(name, attrs))):
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687 return None
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688
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689 tag = self.element_classes.get(Tag, Tag)(
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diff changeset
690 self, self.builder, name, namespace, nsprefix, attrs,
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diff changeset
691 self.currentTag, self._most_recent_element,
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692 sourceline=sourceline, sourcepos=sourcepos
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693 )
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694 if tag is None:
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diff changeset
695 return tag
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696 if self._most_recent_element is not None:
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697 self._most_recent_element.next_element = tag
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698 self._most_recent_element = tag
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diff changeset
699 self.pushTag(tag)
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diff changeset
700 return tag
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701
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702 def handle_endtag(self, name, nsprefix=None):
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diff changeset
703 """Called by the tree builder when an ending tag is encountered.
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diff changeset
704
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705 :param name: Name of the tag.
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diff changeset
706 :param nsprefix: Namespace prefix for the tag.
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707 """
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diff changeset
708 #print("End tag: " + name)
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diff changeset
709 self.endData()
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diff changeset
710 self._popToTag(name, nsprefix)
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diff changeset
711
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712 def handle_data(self, data):
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diff changeset
713 """Called by the tree builder when a chunk of textual data is encountered."""
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diff changeset
714 self.current_data.append(data)
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715
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716 def decode(self, pretty_print=False,
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diff changeset
717 eventual_encoding=DEFAULT_OUTPUT_ENCODING,
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diff changeset
718 formatter="minimal"):
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diff changeset
719 """Returns a string or Unicode representation of the parse tree
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diff changeset
720 as an HTML or XML document.
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diff changeset
721
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722 :param pretty_print: If this is True, indentation will be used to
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
723 make the document more readable.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
724 :param eventual_encoding: The encoding of the final document.
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diff changeset
725 If this is None, the document will be a Unicode string.
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726 """
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727 if self.is_xml:
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diff changeset
728 # Print the XML declaration
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diff changeset
729 encoding_part = ''
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diff changeset
730 if eventual_encoding in PYTHON_SPECIFIC_ENCODINGS:
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diff changeset
731 # This is a special Python encoding; it can't actually
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
732 # go into an XML document because it means nothing
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
733 # outside of Python.
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734 eventual_encoding = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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735 if eventual_encoding != None:
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diff changeset
736 encoding_part = ' encoding="%s"' % eventual_encoding
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diff changeset
737 prefix = '<?xml version="1.0"%s?>\n' % encoding_part
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
738 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
739 prefix = ''
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
740 if not pretty_print:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
741 indent_level = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
742 else:
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diff changeset
743 indent_level = 0
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
744 return prefix + super(BeautifulSoup, self).decode(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
745 indent_level, eventual_encoding, formatter)
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diff changeset
746
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
747 # Aliases to make it easier to get started quickly, e.g. 'from bs4 import _soup'
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diff changeset
748 _s = BeautifulSoup
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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749 _soup = BeautifulSoup
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750
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751 class BeautifulStoneSoup(BeautifulSoup):
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752 """Deprecated interface to an XML parser."""
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753
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754 def __init__(self, *args, **kwargs):
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755 kwargs['features'] = 'xml'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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756 warnings.warn(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
757 'The BeautifulStoneSoup class is deprecated. Instead of using '
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
758 'it, pass features="xml" into the BeautifulSoup constructor.')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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759 super(BeautifulStoneSoup, self).__init__(*args, **kwargs)
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diff changeset
760
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761
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
762 class StopParsing(Exception):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
763 """Exception raised by a TreeBuilder if it's unable to continue parsing."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
764 pass
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diff changeset
765
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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766 class FeatureNotFound(ValueError):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
767 """Exception raised by the BeautifulSoup constructor if no parser with the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
768 requested features is found.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
769 """
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diff changeset
770 pass
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guerler
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diff changeset
771
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
772
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
773 #If this file is run as a script, act as an HTML pretty-printer.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
774 if __name__ == '__main__':
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diff changeset
775 import sys
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
776 soup = BeautifulSoup(sys.stdin)
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diff changeset
777 print((soup.prettify()))