annotate genshi/output.py @ 1034:e02843c0fecc trunk

Add missing boolean attributes to XHTML and HTML serializers (fixes #570).
author hodgestar
date Wed, 19 Mar 2014 14:22:22 +0000
parents f15334b65cf8
children
rev   line source
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1 # -*- coding: utf-8 -*-
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2 #
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3 # Copyright (C) 2006-2009 Edgewall Software
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4 # All rights reserved.
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5 #
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6 # This software is licensed as described in the file COPYING, which
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7 # you should have received as part of this distribution. The terms
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84168828b074 Renamed Markup to Genshi in repository.
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8 # are also available at http://genshi.edgewall.org/wiki/License.
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9 #
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10 # This software consists of voluntary contributions made by many
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11 # individuals. For the exact contribution history, see the revision
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12 # history and logs, available at http://genshi.edgewall.org/log/.
1
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13
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14 """This module provides different kinds of serialization methods for XML event
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15 streams.
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16 """
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17
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
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18 from itertools import chain
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19 import re
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20
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21 from genshi.core import escape, Attrs, Markup, Namespace, QName, StreamEventKind
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22 from genshi.core import START, END, TEXT, XML_DECL, DOCTYPE, START_NS, END_NS, \
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c199e9b95884 Fix output of namespace declarations for namespace URLs appearing more than once in a stream. Thanks to Jeff Cutsinger for reporting the problem.
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23 START_CDATA, END_CDATA, PI, COMMENT, XML_NAMESPACE
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24
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25 __all__ = ['encode', 'get_serializer', 'DocType', 'XMLSerializer',
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26 'XHTMLSerializer', 'HTMLSerializer', 'TextSerializer']
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
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27 __docformat__ = 'restructuredtext en'
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28
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29
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30 def encode(iterator, method='xml', encoding=None, out=None):
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31 """Encode serializer output into a string.
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32
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33 :param iterator: the iterator returned from serializing a stream (basically
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34 any iterator that yields unicode objects)
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35 :param method: the serialization method; determines how characters not
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36 representable in the specified encoding are treated
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37 :param encoding: how the output string should be encoded; if set to `None`,
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38 this method returns a `unicode` object
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39 :param out: a file-like object that the output should be written to
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40 instead of being returned as one big string; note that if
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41 this is a file or socket (or similar), the `encoding` must
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42 not be `None` (that is, the output must be encoded)
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43 :return: a `str` or `unicode` object (depending on the `encoding`
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44 parameter), or `None` if the `out` parameter is provided
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45
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46 :since: version 0.4.1
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47 :note: Changed in 0.5: added the `out` parameter
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48 """
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49 if encoding is not None:
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50 errors = 'replace'
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51 if method != 'text' and not isinstance(method, TextSerializer):
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52 errors = 'xmlcharrefreplace'
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53 _encode = lambda string: string.encode(encoding, errors)
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54 else:
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55 _encode = lambda string: string
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56 if out is None:
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57 return _encode(''.join(list(iterator)))
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58 for chunk in iterator:
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59 out.write(_encode(chunk))
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60
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61
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62 def get_serializer(method='xml', **kwargs):
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63 """Return a serializer object for the given method.
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64
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65 :param method: the serialization method; can be either "xml", "xhtml",
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66 "html", "text", or a custom serializer class
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67
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68 Any additional keyword arguments are passed to the serializer, and thus
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69 depend on the `method` parameter value.
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70
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71 :see: `XMLSerializer`, `XHTMLSerializer`, `HTMLSerializer`, `TextSerializer`
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72 :since: version 0.4.1
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73 """
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74 if isinstance(method, basestring):
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75 method = {'xml': XMLSerializer,
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76 'xhtml': XHTMLSerializer,
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77 'html': HTMLSerializer,
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78 'text': TextSerializer}[method.lower()]
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79 return method(**kwargs)
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80
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81
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82 def _prepare_cache(use_cache=True):
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83 """Prepare a private token serialization cache.
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85 :param use_cache: boolean indicating whether a real cache should
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86 be used or not. If not, the returned functions
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87 are no-ops.
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88
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89 :return: emit and get functions, for storing and retrieving
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90 serialized values from the cache.
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91 """
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92 cache = {}
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93 if use_cache:
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94 def _emit(kind, input, output):
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95 cache[kind, input] = output
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96 return output
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97 _get = cache.get
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98 else:
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99 def _emit(kind, input, output):
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100 return output
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101 def _get(key):
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102 pass
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103 return _emit, _get, cache
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104
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105
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106 class DocType(object):
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107 """Defines a number of commonly used DOCTYPE declarations as constants."""
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108
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109 HTML_STRICT = (
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110 'html', '-//W3C//DTD HTML 4.01//EN',
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111 'http://www.w3.org/TR/html4/strict.dtd'
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112 )
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113 HTML_TRANSITIONAL = (
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114 'html', '-//W3C//DTD HTML 4.01 Transitional//EN',
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115 'http://www.w3.org/TR/html4/loose.dtd'
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116 )
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117 HTML_FRAMESET = (
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118 'html', '-//W3C//DTD HTML 4.01 Frameset//EN',
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119 'http://www.w3.org/TR/html4/frameset.dtd'
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120 )
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121 HTML = HTML_STRICT
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122
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123 HTML5 = ('html', None, None)
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124
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125 XHTML_STRICT = (
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126 'html', '-//W3C//DTD XHTML 1.0 Strict//EN',
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127 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'
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128 )
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129 XHTML_TRANSITIONAL = (
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130 'html', '-//W3C//DTD XHTML 1.0 Transitional//EN',
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131 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'
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132 )
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133 XHTML_FRAMESET = (
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134 'html', '-//W3C//DTD XHTML 1.0 Frameset//EN',
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135 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd'
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136 )
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137 XHTML = XHTML_STRICT
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138
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139 XHTML11 = (
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140 'html', '-//W3C//DTD XHTML 1.1//EN',
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141 'http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd'
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142 )
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143
663
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144 SVG_FULL = (
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145 'svg', '-//W3C//DTD SVG 1.1//EN',
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146 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'
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147 )
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148 SVG_BASIC = (
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149 'svg', '-//W3C//DTD SVG Basic 1.1//EN',
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150 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd'
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151 )
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diff changeset
152 SVG_TINY = (
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153 'svg', '-//W3C//DTD SVG Tiny 1.1//EN',
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154 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd'
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diff changeset
155 )
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diff changeset
156 SVG = SVG_FULL
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157
822
70fddd2262f5 Get rid of some Python 2.3 legacy that's no longer needed now that 2.4 is the baseline.
cmlenz
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158 @classmethod
464
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159 def get(cls, name):
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160 """Return the ``(name, pubid, sysid)`` tuple of the ``DOCTYPE``
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161 declaration for the specified name.
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162
2f13c5fc4a4d Move the mapping of doctype names to tuples out of the plugin into the `DocType` class.
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163 The following names are recognized in this version:
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164 * "html" or "html-strict" for the HTML 4.01 strict DTD
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165 * "html-transitional" for the HTML 4.01 transitional DTD
745
74b5c5476ddb Preparing for [milestone:0.5] release.
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166 * "html-frameset" for the HTML 4.01 frameset DTD
464
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167 * "html5" for the ``DOCTYPE`` proposed for HTML5
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168 * "xhtml" or "xhtml-strict" for the XHTML 1.0 strict DTD
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169 * "xhtml-transitional" for the XHTML 1.0 transitional DTD
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170 * "xhtml-frameset" for the XHTML 1.0 frameset DTD
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
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171 * "xhtml11" for the XHTML 1.1 DTD
663
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diff changeset
172 * "svg" or "svg-full" for the SVG 1.1 DTD
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173 * "svg-basic" for the SVG Basic 1.1 DTD
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174 * "svg-tiny" for the SVG Tiny 1.1 DTD
464
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175
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176 :param name: the name of the ``DOCTYPE``
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177 :return: the ``(name, pubid, sysid)`` tuple for the requested
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178 ``DOCTYPE``, or ``None`` if the name is not recognized
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179 :since: version 0.4.1
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180 """
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181 return {
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182 'html': cls.HTML, 'html-strict': cls.HTML_STRICT,
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183 'html-transitional': DocType.HTML_TRANSITIONAL,
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184 'html-frameset': DocType.HTML_FRAMESET,
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185 'html5': cls.HTML5,
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186 'xhtml': cls.XHTML, 'xhtml-strict': cls.XHTML_STRICT,
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187 'xhtml-transitional': cls.XHTML_TRANSITIONAL,
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188 'xhtml-frameset': cls.XHTML_FRAMESET,
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
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189 'xhtml11': cls.XHTML11,
663
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190 'svg': cls.SVG, 'svg-full': cls.SVG_FULL,
c50d2705016e Add SVG DTDs to `DocType` class. Closes #161.
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191 'svg-basic': cls.SVG_BASIC,
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192 'svg-tiny': cls.SVG_TINY
464
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193 }.get(name.lower())
448
1154f2aadb6c Add support for HTML5 doctype.
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194
85
4938c310d904 Improve handling of DOCTYPE declarations.
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diff changeset
195
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
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diff changeset
196 class XMLSerializer(object):
1
5479aae32f5a Initial import.
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197 """Produces XML text from an event stream.
5479aae32f5a Initial import.
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198
230
84168828b074 Renamed Markup to Genshi in repository.
cmlenz
parents: 219
diff changeset
199 >>> from genshi.builder import tag
20
cc92d74ce9e5 Fix tests broken in [20].
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diff changeset
200 >>> elem = tag.div(tag.a(href='foo'), tag.br, tag.hr(noshade=True))
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
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201 >>> print(''.join(XMLSerializer()(elem.generate())))
1
5479aae32f5a Initial import.
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202 <div><a href="foo"/><br/><hr noshade="True"/></div>
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203 """
123
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diff changeset
204
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
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diff changeset
205 _PRESERVE_SPACE = frozenset()
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cmlenz
parents: 109
diff changeset
206
410
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diff changeset
207 def __init__(self, doctype=None, strip_whitespace=True,
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208 namespace_prefixes=None, cache=True):
85
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diff changeset
209 """Initialize the XML serializer.
4938c310d904 Improve handling of DOCTYPE declarations.
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diff changeset
210
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
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diff changeset
211 :param doctype: a ``(name, pubid, sysid)`` tuple that represents the
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
212 DOCTYPE declaration that should be included at the top
494
942d73ba938c The `doctype` parameter for serializers can now be a string.
cmlenz
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diff changeset
213 of the generated output, or the name of a DOCTYPE as
942d73ba938c The `doctype` parameter for serializers can now be a string.
cmlenz
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diff changeset
214 defined in `DocType.get`
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
215 :param strip_whitespace: whether extraneous whitespace should be
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
216 stripped from the output
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217 :param cache: whether to cache the text output per event, which
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cmlenz
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diff changeset
218 improves performance for repetitive markup
494
942d73ba938c The `doctype` parameter for serializers can now be a string.
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diff changeset
219 :note: Changed in 0.4.2: The `doctype` parameter can now be a string.
829
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220 :note: Changed in 0.6: The `cache` parameter was added
85
4938c310d904 Improve handling of DOCTYPE declarations.
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parents: 73
diff changeset
221 """
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
222 self.filters = [EmptyTagFilter()]
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
223 if strip_whitespace:
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cmlenz
parents: 109
diff changeset
224 self.filters.append(WhitespaceFilter(self._PRESERVE_SPACE))
829
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225 self.filters.append(NamespaceFlattener(prefixes=namespace_prefixes,
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cmlenz
parents: 822
diff changeset
226 cache=cache))
671
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
227 if doctype:
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
228 self.filters.append(DocTypeInserter(doctype))
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229 self.cache = cache
1
5479aae32f5a Initial import.
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230
938
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hodgestar
parents: 932
diff changeset
231 def _prepare_cache(self):
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
232 return _prepare_cache(self.cache)[:2]
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hodgestar
parents: 932
diff changeset
233
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
234 def __call__(self, stream):
460
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
235 have_decl = have_doctype = False
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
236 in_cdata = False
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
237 _emit, _get = self._prepare_cache()
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cmlenz
parents: 822
diff changeset
238
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
239 for filter_ in self.filters:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
240 stream = filter_(stream)
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
241 for kind, data, pos in stream:
939
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
242 if kind is TEXT and isinstance(data, Markup):
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
243 yield data
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
244 continue
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
245 cached = _get((kind, data))
829
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diff changeset
246 if cached is not None:
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diff changeset
247 yield cached
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
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diff changeset
248 elif kind is START or kind is EMPTY:
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
249 tag, attrib = data
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
250 buf = ['<', tag]
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
251 for attr, value in attrib:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
252 buf += [' ', attr, '="', escape(value), '"']
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
253 buf.append(kind is EMPTY and '/>' or '>')
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
254 yield _emit(kind, data, Markup(''.join(buf)))
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
255
69
c40a5dcd2b55 A couple of minor performance improvements.
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parents: 66
diff changeset
256 elif kind is END:
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parents: 822
diff changeset
257 yield _emit(kind, data, Markup('</%s>' % data))
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
258
69
c40a5dcd2b55 A couple of minor performance improvements.
cmlenz
parents: 66
diff changeset
259 elif kind is TEXT:
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
260 if in_cdata:
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cmlenz
parents: 822
diff changeset
261 yield _emit(kind, data, data)
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
262 else:
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diff changeset
263 yield _emit(kind, data, escape(data, quotes=False))
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
264
89
80386d62814f Support comments in templates that are not included in the output, in the same way Kid does: if the comment text starts with a `!` character, it is stripped from the output.
cmlenz
parents: 85
diff changeset
265 elif kind is COMMENT:
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parents: 822
diff changeset
266 yield _emit(kind, data, Markup('<!--%s-->' % data))
89
80386d62814f Support comments in templates that are not included in the output, in the same way Kid does: if the comment text starts with a `!` character, it is stripped from the output.
cmlenz
parents: 85
diff changeset
267
460
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
268 elif kind is XML_DECL and not have_decl:
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
269 version, encoding, standalone = data
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
270 buf = ['<?xml version="%s"' % version]
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
271 if encoding:
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
272 buf.append(' encoding="%s"' % encoding)
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
273 if standalone != -1:
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
274 standalone = standalone and 'yes' or 'no'
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
275 buf.append(' standalone="%s"' % standalone)
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
276 buf.append('?>\n')
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
277 yield Markup(''.join(buf))
460
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
278 have_decl = True
75425671b437 Apply patch by Alec Thomas for processing XML declarations (#111). Thanks!
cmlenz
parents: 448
diff changeset
279
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
280 elif kind is DOCTYPE and not have_doctype:
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
281 name, pubid, sysid = data
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
282 buf = ['<!DOCTYPE %s']
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
283 if pubid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
284 buf.append(' PUBLIC "%s"')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
285 elif sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
286 buf.append(' SYSTEM')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
287 if sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
288 buf.append(' "%s"')
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
289 buf.append('>\n')
854
4d9bef447df9 More work on reducing the size of the diff produced by 2to3.
cmlenz
parents: 853
diff changeset
290 yield Markup(''.join(buf)) % tuple([p for p in data if p])
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
291 have_doctype = True
109
230ee6a2c6b2 Reorder the conditional branches in the serializers so that the more common event kinds are on top.
cmlenz
parents: 105
diff changeset
292
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
293 elif kind is START_CDATA:
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
294 yield Markup('<![CDATA[')
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
295 in_cdata = True
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
296
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
297 elif kind is END_CDATA:
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
298 yield Markup(']]>')
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
299 in_cdata = False
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
300
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
301 elif kind is PI:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
302 yield _emit(kind, data, Markup('<?%s %s?>' % data))
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
303
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
304
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
305 class XHTMLSerializer(XMLSerializer):
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
306 """Produces XHTML text from an event stream.
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
307
230
84168828b074 Renamed Markup to Genshi in repository.
cmlenz
parents: 219
diff changeset
308 >>> from genshi.builder import tag
20
cc92d74ce9e5 Fix tests broken in [20].
cmlenz
parents: 19
diff changeset
309 >>> elem = tag.div(tag.a(href='foo'), tag.br, tag.hr(noshade=True))
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
cmlenz
parents: 852
diff changeset
310 >>> print(''.join(XHTMLSerializer()(elem.generate())))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
311 <div><a href="foo"></a><br /><hr noshade="noshade" /></div>
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
312 """
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
313
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
314 _EMPTY_ELEMS = frozenset(['area', 'base', 'basefont', 'br', 'col', 'frame',
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
315 'hr', 'img', 'input', 'isindex', 'link', 'meta',
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
316 'param'])
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
317 _BOOLEAN_ATTRS = frozenset(['selected', 'checked', 'compact', 'declare',
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
318 'defer', 'disabled', 'ismap', 'multiple',
1034
e02843c0fecc Add missing boolean attributes to XHTML and HTML serializers (fixes #570).
hodgestar
parents: 939
diff changeset
319 'nohref', 'noresize', 'noshade', 'nowrap',
e02843c0fecc Add missing boolean attributes to XHTML and HTML serializers (fixes #570).
hodgestar
parents: 939
diff changeset
320 'autofocus', 'readonly', 'required',
e02843c0fecc Add missing boolean attributes to XHTML and HTML serializers (fixes #570).
hodgestar
parents: 939
diff changeset
321 'formnovalidate'])
346
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
322 _PRESERVE_SPACE = frozenset([
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
323 QName('pre'), QName('http://www.w3.org/1999/xhtml}pre'),
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
324 QName('textarea'), QName('http://www.w3.org/1999/xhtml}textarea')
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
325 ])
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
326
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
327 def __init__(self, doctype=None, strip_whitespace=True,
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
328 namespace_prefixes=None, drop_xml_decl=True, cache=True):
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
329 super(XHTMLSerializer, self).__init__(doctype, False)
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
330 self.filters = [EmptyTagFilter()]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
331 if strip_whitespace:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
332 self.filters.append(WhitespaceFilter(self._PRESERVE_SPACE))
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
333 namespace_prefixes = namespace_prefixes or {}
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
334 namespace_prefixes['http://www.w3.org/1999/xhtml'] = ''
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
335 self.filters.append(NamespaceFlattener(prefixes=namespace_prefixes,
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
336 cache=cache))
671
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
337 if doctype:
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
338 self.filters.append(DocTypeInserter(doctype))
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
339 self.drop_xml_decl = drop_xml_decl
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
340 self.cache = cache
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
341
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
342 def __call__(self, stream):
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
343 boolean_attrs = self._BOOLEAN_ATTRS
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
344 empty_elems = self._EMPTY_ELEMS
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
345 drop_xml_decl = self.drop_xml_decl
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
346 have_decl = have_doctype = False
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
347 in_cdata = False
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
348 _emit, _get = self._prepare_cache()
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
349
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
350 for filter_ in self.filters:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
351 stream = filter_(stream)
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
352 for kind, data, pos in stream:
939
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
353 if kind is TEXT and isinstance(data, Markup):
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
354 yield data
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
355 continue
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
356 cached = _get((kind, data))
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
357 if cached is not None:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
358 yield cached
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
359
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
360 elif kind is START or kind is EMPTY:
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
361 tag, attrib = data
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
362 buf = ['<', tag]
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
363 for attr, value in attrib:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
364 if attr in boolean_attrs:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
365 value = attr
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
366 elif attr == 'xml:lang' and 'lang' not in attrib:
524
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
367 buf += [' lang="', escape(value), '"']
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
368 elif attr == 'xml:space':
689
3881a602048a The XHTML serializer now strips `xml:space` attributes as they are only allowed on very few tags.
cmlenz
parents: 688
diff changeset
369 continue
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
370 buf += [' ', attr, '="', escape(value), '"']
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
371 if kind is EMPTY:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
372 if tag in empty_elems:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
373 buf.append(' />')
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
374 else:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
375 buf.append('></%s>' % tag)
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
376 else:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
377 buf.append('>')
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
378 yield _emit(kind, data, Markup(''.join(buf)))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
379
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
380 elif kind is END:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
381 yield _emit(kind, data, Markup('</%s>' % data))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
382
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
383 elif kind is TEXT:
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
384 if in_cdata:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
385 yield _emit(kind, data, data)
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
386 else:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
387 yield _emit(kind, data, escape(data, quotes=False))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
388
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
389 elif kind is COMMENT:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
390 yield _emit(kind, data, Markup('<!--%s-->' % data))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
391
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
392 elif kind is DOCTYPE and not have_doctype:
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
393 name, pubid, sysid = data
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
394 buf = ['<!DOCTYPE %s']
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
395 if pubid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
396 buf.append(' PUBLIC "%s"')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
397 elif sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
398 buf.append(' SYSTEM')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
399 if sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
400 buf.append(' "%s"')
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
401 buf.append('>\n')
854
4d9bef447df9 More work on reducing the size of the diff produced by 2to3.
cmlenz
parents: 853
diff changeset
402 yield Markup(''.join(buf)) % tuple([p for p in data if p])
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
403 have_doctype = True
109
230ee6a2c6b2 Reorder the conditional branches in the serializers so that the more common event kinds are on top.
cmlenz
parents: 105
diff changeset
404
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
405 elif kind is XML_DECL and not have_decl and not drop_xml_decl:
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
406 version, encoding, standalone = data
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
407 buf = ['<?xml version="%s"' % version]
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
408 if encoding:
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
409 buf.append(' encoding="%s"' % encoding)
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
410 if standalone != -1:
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
411 standalone = standalone and 'yes' or 'no'
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
412 buf.append(' standalone="%s"' % standalone)
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
413 buf.append('?>\n')
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
414 yield Markup(''.join(buf))
729
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
415 have_decl = True
be0b4a7b2fd4 * Add XHTML 1.1 doctype (closes #228).
cmlenz
parents: 719
diff changeset
416
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
417 elif kind is START_CDATA:
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
418 yield Markup('<![CDATA[')
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
419 in_cdata = True
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
420
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
421 elif kind is END_CDATA:
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
422 yield Markup(']]>')
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
423 in_cdata = False
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
424
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
425 elif kind is PI:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
426 yield _emit(kind, data, Markup('<?%s %s?>' % data))
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
427
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
428
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
429 class HTMLSerializer(XHTMLSerializer):
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
430 """Produces HTML text from an event stream.
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
431
230
84168828b074 Renamed Markup to Genshi in repository.
cmlenz
parents: 219
diff changeset
432 >>> from genshi.builder import tag
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
433 >>> elem = tag.div(tag.a(href='foo'), tag.br, tag.hr(noshade=True))
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
cmlenz
parents: 852
diff changeset
434 >>> print(''.join(HTMLSerializer()(elem.generate())))
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
435 <div><a href="foo"></a><br><hr noshade></div>
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
436 """
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
437
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
438 _NOESCAPE_ELEMS = frozenset([
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
439 QName('script'), QName('http://www.w3.org/1999/xhtml}script'),
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
440 QName('style'), QName('http://www.w3.org/1999/xhtml}style')
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
441 ])
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
442
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
443 def __init__(self, doctype=None, strip_whitespace=True, cache=True):
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
444 """Initialize the HTML serializer.
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
445
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
446 :param doctype: a ``(name, pubid, sysid)`` tuple that represents the
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
447 DOCTYPE declaration that should be included at the top
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
448 of the generated output
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
449 :param strip_whitespace: whether extraneous whitespace should be
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
450 stripped from the output
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
451 :param cache: whether to cache the text output per event, which
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
452 improves performance for repetitive markup
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
453 :note: Changed in 0.6: The `cache` parameter was added
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
454 """
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
455 super(HTMLSerializer, self).__init__(doctype, False)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
456 self.filters = [EmptyTagFilter()]
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
457 if strip_whitespace:
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
458 self.filters.append(WhitespaceFilter(self._PRESERVE_SPACE,
305
60111a041e7c Various performance-oriented tweaks.
cmlenz
parents: 280
diff changeset
459 self._NOESCAPE_ELEMS))
524
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
460 self.filters.append(NamespaceFlattener(prefixes={
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
461 'http://www.w3.org/1999/xhtml': ''
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
462 }, cache=cache))
671
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
463 if doctype:
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
464 self.filters.append(DocTypeInserter(doctype))
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
465 self.cache = True
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
466
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
467 def __call__(self, stream):
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
468 boolean_attrs = self._BOOLEAN_ATTRS
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
469 empty_elems = self._EMPTY_ELEMS
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
470 noescape_elems = self._NOESCAPE_ELEMS
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
471 have_doctype = False
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
472 noescape = False
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
473 _emit, _get = self._prepare_cache()
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
474
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
475 for filter_ in self.filters:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
476 stream = filter_(stream)
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
477 for kind, data, _ in stream:
939
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
478 if kind is TEXT and isinstance(data, Markup):
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
479 yield data
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
480 continue
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
481 output = _get((kind, data))
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
482 if output is not None:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
483 yield output
831
7a422be6f6a6 Follow-up fix for [1038].
cmlenz
parents: 829
diff changeset
484 if (kind is START or kind is EMPTY) \
7a422be6f6a6 Follow-up fix for [1038].
cmlenz
parents: 829
diff changeset
485 and data[0] in noescape_elems:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
486 noescape = True
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
487 elif kind is END:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
488 noescape = False
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
489
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
490 elif kind is START or kind is EMPTY:
96
fa08aef181a2 Add an XHTML serialization method. Now really need to get rid of some code duplication in the `markup.output` module.
cmlenz
parents: 89
diff changeset
491 tag, attrib = data
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
492 buf = ['<', tag]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
493 for attr, value in attrib:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
494 if attr in boolean_attrs:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
495 if value:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
496 buf += [' ', attr]
524
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
497 elif ':' in attr:
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
498 if attr == 'xml:lang' and 'lang' not in attrib:
524
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
499 buf += [' lang="', escape(value), '"']
7553760b58af Add special handling for `xml:lang` to HTML/XHTML serialization.
cmlenz
parents: 494
diff changeset
500 elif attr != 'xmlns':
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
501 buf += [' ', attr, '="', escape(value), '"']
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
502 buf.append('>')
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
503 if kind is EMPTY:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
504 if tag not in empty_elems:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
505 buf.append('</%s>' % tag)
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
506 yield _emit(kind, data, Markup(''.join(buf)))
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
507 if tag in noescape_elems:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
508 noescape = True
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
509
69
c40a5dcd2b55 A couple of minor performance improvements.
cmlenz
parents: 66
diff changeset
510 elif kind is END:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
511 yield _emit(kind, data, Markup('</%s>' % data))
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
512 noescape = False
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
513
69
c40a5dcd2b55 A couple of minor performance improvements.
cmlenz
parents: 66
diff changeset
514 elif kind is TEXT:
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
515 if noescape:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
516 yield _emit(kind, data, data)
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
517 else:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
518 yield _emit(kind, data, escape(data, quotes=False))
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
519
89
80386d62814f Support comments in templates that are not included in the output, in the same way Kid does: if the comment text starts with a `!` character, it is stripped from the output.
cmlenz
parents: 85
diff changeset
520 elif kind is COMMENT:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
521 yield _emit(kind, data, Markup('<!--%s-->' % data))
89
80386d62814f Support comments in templates that are not included in the output, in the same way Kid does: if the comment text starts with a `!` character, it is stripped from the output.
cmlenz
parents: 85
diff changeset
522
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
523 elif kind is DOCTYPE and not have_doctype:
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
524 name, pubid, sysid = data
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
525 buf = ['<!DOCTYPE %s']
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
526 if pubid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
527 buf.append(' PUBLIC "%s"')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
528 elif sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
529 buf.append(' SYSTEM')
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
530 if sysid:
397
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
531 buf.append(' "%s"')
31742fe6d47e * Moved some utility functions from `genshi.core` to `genshi.util` (backwards compatibility preserved via imports)
cmlenz
parents: 346
diff changeset
532 buf.append('>\n')
854
4d9bef447df9 More work on reducing the size of the diff produced by 2to3.
cmlenz
parents: 853
diff changeset
533 yield Markup(''.join(buf)) % tuple([p for p in data if p])
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
534 have_doctype = True
109
230ee6a2c6b2 Reorder the conditional branches in the serializers so that the more common event kinds are on top.
cmlenz
parents: 105
diff changeset
535
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
536 elif kind is PI:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
537 yield _emit(kind, data, Markup('<?%s %s?>' % data))
105
71f3db26eecb Include processing instructions in serialized streams.
cmlenz
parents: 96
diff changeset
538
1
5479aae32f5a Initial import.
cmlenz
parents:
diff changeset
539
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
540 class TextSerializer(object):
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
541 """Produces plain text from an event stream.
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
542
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
543 Only text events are included in the output. Unlike the other serializer,
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
544 special XML characters are not escaped:
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
545
230
84168828b074 Renamed Markup to Genshi in repository.
cmlenz
parents: 219
diff changeset
546 >>> from genshi.builder import tag
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
547 >>> elem = tag.div(tag.a('<Hello!>', href='foo'), tag.br)
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
cmlenz
parents: 852
diff changeset
548 >>> print(elem)
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
549 <div><a href="foo">&lt;Hello!&gt;</a><br/></div>
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
cmlenz
parents: 852
diff changeset
550 >>> print(''.join(TextSerializer()(elem.generate())))
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
551 <Hello!>
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
552
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
553 If text events contain literal markup (instances of the `Markup` class),
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
554 that markup is by default passed through unchanged:
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
555
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
556 >>> elem = tag.div(Markup('<a href="foo">Hello &amp; Bye!</a><br/>'))
863
869ca3cc2f4c Make the output tests skip the encoding step.
cmlenz
parents: 854
diff changeset
557 >>> print(elem.generate().render(TextSerializer, encoding=None))
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
558 <a href="foo">Hello &amp; Bye!</a><br/>
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
559
740
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
560 You can use the ``strip_markup`` to change this behavior, so that tags and
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
561 entities are stripped from the output (or in the case of entities,
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
562 replaced with the equivalent character):
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
563
863
869ca3cc2f4c Make the output tests skip the encoding step.
cmlenz
parents: 854
diff changeset
564 >>> print(elem.generate().render(TextSerializer, strip_markup=True,
869ca3cc2f4c Make the output tests skip the encoding step.
cmlenz
parents: 854
diff changeset
565 ... encoding=None))
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
566 Hello & Bye!
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
567 """
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
568
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
569 def __init__(self, strip_markup=False):
740
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
570 """Create the serializer.
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
571
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
572 :param strip_markup: whether markup (tags and encoded characters) found
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
573 in the text should be removed
0c3a2d7bf9a1 Fix a bad reference in the `TextSerializer` docstring.
cmlenz
parents: 729
diff changeset
574 """
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
575 self.strip_markup = strip_markup
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
576
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
577 def __call__(self, stream):
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
578 strip_markup = self.strip_markup
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
579 for event in stream:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
580 if event[0] is TEXT:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
581 data = event[1]
658
5df08e5195b8 The `TextSerializer` class no longer strips all markup in text by default, so that it is still possible to use the Genshi `escape` function even with text templates. The old behavior is available via the `strip_markup` option of the serializer. Closes #146.
cmlenz
parents: 524
diff changeset
582 if strip_markup and type(data) is Markup:
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
583 data = data.striptags().stripentities()
201
c5e0a1c86173 The `TextSerializer` should produce `unicode` objects, not `Markup` objects.
cmlenz
parents: 200
diff changeset
584 yield unicode(data)
200
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
585
5861f4446c26 Add serialization to plain text, based on cboos' patch. Closes #41.
cmlenz
parents: 178
diff changeset
586
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
587 class EmptyTagFilter(object):
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
588 """Combines `START` and `STOP` events into `EMPTY` events for elements that
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
589 have no contents.
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
590 """
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
591
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
592 EMPTY = StreamEventKind('EMPTY')
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
593
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
594 def __call__(self, stream):
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
595 prev = (None, None, None)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
596 for ev in stream:
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
597 if prev[0] is START:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
598 if ev[0] is END:
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
599 prev = EMPTY, prev[1], prev[2]
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
600 yield prev
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
601 continue
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
602 else:
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
603 yield prev
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
604 if ev[0] is not START:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
605 yield ev
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
606 prev = ev
212
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
607
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
608
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
609 EMPTY = EmptyTagFilter.EMPTY
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
610
0141f45c18e1 Refactored the handling of empty tags in the serializer: use an `EmptyTagFilter` that combines adjacent start/end events, instead of the generic pushback-iterator.
cmlenz
parents: 201
diff changeset
611
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
612 class NamespaceFlattener(object):
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
613 r"""Output stream filter that removes namespace information from the stream,
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
614 instead adding namespace attributes and prefixes as needed.
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
615
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
616 :param prefixes: optional mapping of namespace URIs to prefixes
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
617
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
618 >>> from genshi.input import XML
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
619 >>> xml = XML('''<doc xmlns="NS1" xmlns:two="NS2">
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
620 ... <two:item/>
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
621 ... </doc>''')
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
622 >>> for kind, data, pos in NamespaceFlattener()(xml):
853
f33ecf3c319e Convert a bunch of print statements to py3k compatible syntax.
cmlenz
parents: 852
diff changeset
623 ... print('%s %r' % (kind, data))
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
624 START (u'doc', Attrs([('xmlns', u'NS1'), (u'xmlns:two', u'NS2')]))
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
625 TEXT u'\n '
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
626 START (u'two:item', Attrs())
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
627 END u'two:item'
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
628 TEXT u'\n'
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
629 END u'doc'
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
630 """
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
631
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
632 def __init__(self, prefixes=None, cache=True):
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
633 self.prefixes = {XML_NAMESPACE.uri: 'xml'}
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
634 if prefixes is not None:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
635 self.prefixes.update(prefixes)
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
636 self.cache = cache
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
637
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
638 def __call__(self, stream):
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
639 prefixes = dict([(v, [k]) for k, v in self.prefixes.items()])
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
640 namespaces = {XML_NAMESPACE.uri: ['xml']}
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
641 _emit, _get, cache = _prepare_cache(self.cache)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
642 def _push_ns(prefix, uri):
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
643 namespaces.setdefault(uri, []).append(prefix)
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
644 prefixes.setdefault(prefix, []).append(uri)
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
645 cache.clear()
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
646 def _pop_ns(prefix):
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
647 uris = prefixes.get(prefix)
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
648 uri = uris.pop()
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
649 if not uris:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
650 del prefixes[prefix]
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
651 if uri not in uris or uri != uris[-1]:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
652 uri_prefixes = namespaces[uri]
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
653 uri_prefixes.pop()
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
654 if not uri_prefixes:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
655 del namespaces[uri]
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
656 cache.clear()
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
657 return uri
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
658
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
659 ns_attrs = []
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
660 _push_ns_attr = ns_attrs.append
437
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
661 def _make_ns_attr(prefix, uri):
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
662 return 'xmlns%s' % (prefix and ':%s' % prefix or ''), uri
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
663
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
664 def _gen_prefix():
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
665 val = 0
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
666 while 1:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
667 val += 1
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
668 yield 'ns%d' % val
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
669 _gen_prefix = _gen_prefix().next
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
670
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
671 for kind, data, pos in stream:
939
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
672 if kind is TEXT and isinstance(data, Markup):
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
673 yield kind, data, pos
f15334b65cf8 Don't cache (TEXT, Markup) events in serializers. This is not needed and since Markup instances compare equal to the same non-Markup string this can lead to incorrect cached output being retrieved. Fixes #429. This is patch t429-fix.2.patch from that ticket. It includes an additional unrelated test to check that the WhitespaceFilter actually removes ignorable whitespace.
hodgestar
parents: 938
diff changeset
674 continue
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
675 output = _get((kind, data))
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
676 if output is not None:
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
677 yield kind, output, pos
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
678
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
679 elif kind is START or kind is EMPTY:
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
680 tag, attrs = data
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
681
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
682 tagname = tag.localname
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
683 tagns = tag.namespace
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
684 if tagns:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
685 if tagns in namespaces:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
686 prefix = namespaces[tagns][-1]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
687 if prefix:
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
688 tagname = '%s:%s' % (prefix, tagname)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
689 else:
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
690 _push_ns_attr(('xmlns', tagns))
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
691 _push_ns('', tagns)
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
692
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
693 new_attrs = []
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
694 for attr, value in attrs:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
695 attrname = attr.localname
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
696 attrns = attr.namespace
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
697 if attrns:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
698 if attrns not in namespaces:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
699 prefix = _gen_prefix()
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
700 _push_ns(prefix, attrns)
412
bd51adc20a67 Actually write xmlns declaratons for generated attribute namespace prefixes.
cmlenz
parents: 410
diff changeset
701 _push_ns_attr(('xmlns:%s' % prefix, attrns))
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
702 else:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
703 prefix = namespaces[attrns][-1]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
704 if prefix:
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
705 attrname = '%s:%s' % (prefix, attrname)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
706 new_attrs.append((attrname, value))
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
707
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
708 data = _emit(kind, data, (tagname, Attrs(ns_attrs + new_attrs)))
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
709 yield kind, data, pos
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
710 del ns_attrs[:]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
711
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
712 elif kind is END:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
713 tagname = data.localname
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
714 tagns = data.namespace
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
715 if tagns:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
716 prefix = namespaces[tagns][-1]
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
717 if prefix:
852
07f4339fecb0 Remove usage of unicode literals in a couple of places where they were not strictly necessary.
cmlenz
parents: 831
diff changeset
718 tagname = '%s:%s' % (prefix, tagname)
938
8d0f693081b5 Refactor string cache creation to remove repeated code in preparation for fixing issue #429. This is patch t429-refactor-r1038.2.patch from ticket (from cboos).
hodgestar
parents: 932
diff changeset
719 yield kind, _emit(kind, data, tagname), pos
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
720
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
721 elif kind is START_NS:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
722 prefix, uri = data
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
723 if uri not in namespaces:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
724 prefix = prefixes.get(uri, [prefix])[-1]
437
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
725 _push_ns_attr(_make_ns_attr(prefix, uri))
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
726 _push_ns(prefix, uri)
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
727
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
728 elif kind is END_NS:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
729 if data in prefixes:
829
6e46513e1c5c Add caching in the serialization stage, which speeds up the serialization of markup that has a lot of repetitive elements.
cmlenz
parents: 822
diff changeset
730 uri = _pop_ns(data)
437
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
731 if ns_attrs:
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
732 attr = _make_ns_attr(data, uri)
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
733 if attr in ns_attrs:
821fc97d3c0a Fix for #107.
cmlenz
parents: 425
diff changeset
734 ns_attrs.remove(attr)
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
735
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
736 else:
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
737 yield kind, data, pos
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
738
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
739
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
740 class WhitespaceFilter(object):
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
741 """A filter that removes extraneous ignorable white space from the
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
742 stream.
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
743 """
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
744
305
60111a041e7c Various performance-oriented tweaks.
cmlenz
parents: 280
diff changeset
745 def __init__(self, preserve=None, noescape=None):
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
746 """Initialize the filter.
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
747
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
748 :param preserve: a set or sequence of tag names for which white-space
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
749 should be preserved
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
750 :param noescape: a set or sequence of tag names for which text content
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
751 should not be escaped
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
752
346
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
753 The `noescape` set is expected to refer to elements that cannot contain
425
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
754 further child elements (such as ``<style>`` or ``<script>`` in HTML
073640758a42 Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents: 412
diff changeset
755 documents).
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
756 """
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
757 if preserve is None:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
758 preserve = []
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
759 self.preserve = frozenset(preserve)
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
760 if noescape is None:
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
761 noescape = []
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
762 self.noescape = frozenset(noescape)
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
763
219
ebceef564b79 Minor improvements to `WhitespaceFilter`.
cmlenz
parents: 213
diff changeset
764 def __call__(self, stream, ctxt=None, space=XML_NAMESPACE['space'],
ebceef564b79 Minor improvements to `WhitespaceFilter`.
cmlenz
parents: 213
diff changeset
765 trim_trailing_space=re.compile('[ \t]+(?=\n)').sub,
ebceef564b79 Minor improvements to `WhitespaceFilter`.
cmlenz
parents: 213
diff changeset
766 collapse_lines=re.compile('\n{2,}').sub):
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
767 mjoin = Markup('').join
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
768 preserve_elems = self.preserve
346
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
769 preserve = 0
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
770 noescape_elems = self.noescape
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
771 noescape = False
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
772
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
773 textbuf = []
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
774 push_text = textbuf.append
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
775 pop_text = textbuf.pop
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
776 for kind, data, pos in chain(stream, [(None, None, None)]):
410
d14d89995c29 Improve the handling of namespaces in serialization.
cmlenz
parents: 408
diff changeset
777
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
778 if kind is TEXT:
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
779 if noescape:
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
780 data = Markup(data)
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
781 push_text(data)
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
782 else:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
783 if textbuf:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
784 if len(textbuf) > 1:
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
785 text = mjoin(textbuf, escape_quotes=False)
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
786 del textbuf[:]
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
787 else:
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
788 text = escape(pop_text(), quotes=False)
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
789 if not preserve:
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
790 text = collapse_lines('\n', trim_trailing_space('', text))
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
791 yield TEXT, Markup(text), pos
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
792
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
793 if kind is START:
346
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
794 tag, attrs = data
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
795 if preserve or (tag in preserve_elems or
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
796 attrs.get(space) == 'preserve'):
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
797 preserve += 1
219
ebceef564b79 Minor improvements to `WhitespaceFilter`.
cmlenz
parents: 213
diff changeset
798 if not noescape and tag in noescape_elems:
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
799 noescape = True
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
800
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
801 elif kind is END:
346
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
802 noescape = False
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
803 if preserve:
96882a191686 Whitespace was not getting preserved in HTML `<pre>` elements that contained other HTML elements.
cmlenz
parents: 345
diff changeset
804 preserve -= 1
141
520a5b7dd6d2 * No escaping of `<script>` or `<style>` tags in HTML output (see #24)
cmlenz
parents: 140
diff changeset
805
305
60111a041e7c Various performance-oriented tweaks.
cmlenz
parents: 280
diff changeset
806 elif kind is START_CDATA:
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
807 noescape = True
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
808
305
60111a041e7c Various performance-oriented tweaks.
cmlenz
parents: 280
diff changeset
809 elif kind is END_CDATA:
143
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
810 noescape = False
3d4c214c979a CDATA sections in XML input now appear as CDATA sections in the output. This should address the problem with escaping the contents of `<style>` and `<script>` elements, which would only get interpreted correctly if the output was served as `application/xhtml+xml`. Closes #24.
cmlenz
parents: 141
diff changeset
811
136
b86f496f6035 Minor performance improvements in serialization.
cmlenz
parents: 123
diff changeset
812 if kind:
123
10279d2eeec9 Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved.
cmlenz
parents: 109
diff changeset
813 yield kind, data, pos
671
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
814
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
815
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
816 class DocTypeInserter(object):
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
817 """A filter that inserts the DOCTYPE declaration in the correct location,
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
818 after the XML declaration.
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
819 """
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
820 def __init__(self, doctype):
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
821 """Initialize the filter.
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
822
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
823 :param doctype: DOCTYPE as a string or DocType object.
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
824 """
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
825 if isinstance(doctype, basestring):
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
826 doctype = DocType.get(doctype)
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
827 self.doctype_event = (DOCTYPE, doctype, (None, -1, -1))
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
828
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
829 def __call__(self, stream):
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
830 doctype_inserted = False
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
831 for kind, data, pos in stream:
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
832 if not doctype_inserted:
672
571226acaeff XML_DECL must be the absolute first item, so don't bother buffering whitespace.
athomas
parents: 671
diff changeset
833 doctype_inserted = True
571226acaeff XML_DECL must be the absolute first item, so don't bother buffering whitespace.
athomas
parents: 671
diff changeset
834 if kind is XML_DECL:
571226acaeff XML_DECL must be the absolute first item, so don't bother buffering whitespace.
athomas
parents: 671
diff changeset
835 yield (kind, data, pos)
571226acaeff XML_DECL must be the absolute first item, so don't bother buffering whitespace.
athomas
parents: 671
diff changeset
836 yield self.doctype_event
671
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
837 continue
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
838 yield self.doctype_event
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
839
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
840 yield (kind, data, pos)
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
841
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
842 if not doctype_inserted:
8a9a7a8e9478 Add a stream filter to insert the XML DOCTYPE in the correct location (ie.
athomas
parents: 669
diff changeset
843 yield self.doctype_event
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