Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/docutils/nodes.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 # $Id: nodes.py 7595 2013-01-21 17:33:56Z milde $
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2 # Author: David Goodger <goodger@python.org>
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3 # Maintainer: docutils-develop@lists.sourceforge.net
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4 # Copyright: This module has been placed in the public domain.
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5
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6 """
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7 Docutils document tree element class library.
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8
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9 Classes in CamelCase are abstract base classes or auxiliary classes. The one
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10 exception is `Text`, for a text (PCDATA) node; uppercase is used to
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11 differentiate from element classes. Classes in lower_case_with_underscores
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12 are element classes, matching the XML element generic identifiers in the DTD_.
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13
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14 The position of each node (the level at which it can occur) is significant and
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15 is represented by abstract base classes (`Root`, `Structural`, `Body`,
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16 `Inline`, etc.). Certain transformations will be easier because we can use
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17 ``isinstance(node, base_class)`` to determine the position of the node in the
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18 hierarchy.
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19
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20 .. _DTD: http://docutils.sourceforge.net/docs/ref/docutils.dtd
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21 """
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22
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23 __docformat__ = 'reStructuredText'
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24
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25 import sys
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26 import os
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27 import re
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28 import warnings
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29 import types
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30 import unicodedata
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31
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32 # ==============================
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33 # Functional Node Base Classes
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34 # ==============================
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35
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36 class Node(object):
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37
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38 """Abstract base class of nodes in a document tree."""
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39
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40 parent = None
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41 """Back-reference to the Node immediately containing this Node."""
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42
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43 document = None
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44 """The `document` node at the root of the tree containing this Node."""
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45
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46 source = None
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47 """Path or description of the input source which generated this Node."""
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48
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49 line = None
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50 """The line number (1-based) of the beginning of this Node in `source`."""
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51
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52 def __nonzero__(self):
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53 """
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54 Node instances are always true, even if they're empty. A node is more
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55 than a simple container. Its boolean "truth" does not depend on
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56 having one or more subnodes in the doctree.
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57
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58 Use `len()` to check node length. Use `None` to represent a boolean
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59 false value.
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60 """
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61 return True
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62
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63 if sys.version_info < (3,):
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64 # on 2.x, str(node) will be a byte string with Unicode
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65 # characters > 255 escaped; on 3.x this is no longer necessary
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66 def __str__(self):
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67 return unicode(self).encode('raw_unicode_escape')
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68
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69 def asdom(self, dom=None):
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70 """Return a DOM **fragment** representation of this Node."""
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71 if dom is None:
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72 import xml.dom.minidom as dom
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73 domroot = dom.Document()
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74 return self._dom_node(domroot)
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75
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76 def pformat(self, indent=' ', level=0):
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77 """
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78 Return an indented pseudo-XML representation, for test purposes.
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79
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80 Override in subclasses.
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81 """
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82 raise NotImplementedError
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83
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84 def copy(self):
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85 """Return a copy of self."""
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86 raise NotImplementedError
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87
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88 def deepcopy(self):
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89 """Return a deep copy of self (also copying children)."""
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90 raise NotImplementedError
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91
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92 def setup_child(self, child):
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93 child.parent = self
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94 if self.document:
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95 child.document = self.document
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96 if child.source is None:
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97 child.source = self.document.current_source
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98 if child.line is None:
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99 child.line = self.document.current_line
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100
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101 def walk(self, visitor):
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102 """
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103 Traverse a tree of `Node` objects, calling the
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104 `dispatch_visit()` method of `visitor` when entering each
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105 node. (The `walkabout()` method is similar, except it also
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106 calls the `dispatch_departure()` method before exiting each
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107 node.)
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108
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109 This tree traversal supports limited in-place tree
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110 modifications. Replacing one node with one or more nodes is
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111 OK, as is removing an element. However, if the node removed
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112 or replaced occurs after the current node, the old node will
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113 still be traversed, and any new nodes will not.
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114
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115 Within ``visit`` methods (and ``depart`` methods for
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116 `walkabout()`), `TreePruningException` subclasses may be raised
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117 (`SkipChildren`, `SkipSiblings`, `SkipNode`, `SkipDeparture`).
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118
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119 Parameter `visitor`: A `NodeVisitor` object, containing a
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120 ``visit`` implementation for each `Node` subclass encountered.
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121
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122 Return true if we should stop the traversal.
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123 """
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124 stop = False
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125 visitor.document.reporter.debug(
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126 'docutils.nodes.Node.walk calling dispatch_visit for %s'
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127 % self.__class__.__name__)
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128 try:
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129 try:
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130 visitor.dispatch_visit(self)
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131 except (SkipChildren, SkipNode):
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132 return stop
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133 except SkipDeparture: # not applicable; ignore
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134 pass
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135 children = self.children
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136 try:
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137 for child in children[:]:
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138 if child.walk(visitor):
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139 stop = True
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140 break
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141 except SkipSiblings:
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142 pass
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143 except StopTraversal:
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144 stop = True
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145 return stop
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146
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147 def walkabout(self, visitor):
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148 """
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149 Perform a tree traversal similarly to `Node.walk()` (which
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150 see), except also call the `dispatch_departure()` method
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151 before exiting each node.
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152
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153 Parameter `visitor`: A `NodeVisitor` object, containing a
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154 ``visit`` and ``depart`` implementation for each `Node`
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155 subclass encountered.
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156
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157 Return true if we should stop the traversal.
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158 """
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159 call_depart = True
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160 stop = False
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161 visitor.document.reporter.debug(
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162 'docutils.nodes.Node.walkabout calling dispatch_visit for %s'
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163 % self.__class__.__name__)
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164 try:
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165 try:
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166 visitor.dispatch_visit(self)
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167 except SkipNode:
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168 return stop
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169 except SkipDeparture:
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170 call_depart = False
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171 children = self.children
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172 try:
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173 for child in children[:]:
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174 if child.walkabout(visitor):
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175 stop = True
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176 break
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177 except SkipSiblings:
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178 pass
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179 except SkipChildren:
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180 pass
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181 except StopTraversal:
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182 stop = True
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183 if call_depart:
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184 visitor.document.reporter.debug(
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185 'docutils.nodes.Node.walkabout calling dispatch_departure '
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186 'for %s' % self.__class__.__name__)
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187 visitor.dispatch_departure(self)
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188 return stop
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189
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190 def _fast_traverse(self, cls):
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191 """Specialized traverse() that only supports instance checks."""
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192 result = []
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193 if isinstance(self, cls):
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194 result.append(self)
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195 for child in self.children:
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196 result.extend(child._fast_traverse(cls))
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197 return result
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198
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199 def _all_traverse(self):
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200 """Specialized traverse() that doesn't check for a condition."""
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201 result = []
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202 result.append(self)
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203 for child in self.children:
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204 result.extend(child._all_traverse())
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205 return result
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206
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207 def traverse(self, condition=None, include_self=True, descend=True,
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208 siblings=False, ascend=False):
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209 """
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210 Return an iterable containing
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211
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212 * self (if include_self is true)
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213 * all descendants in tree traversal order (if descend is true)
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214 * all siblings (if siblings is true) and their descendants (if
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215 also descend is true)
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216 * the siblings of the parent (if ascend is true) and their
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217 descendants (if also descend is true), and so on
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218
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219 If `condition` is not None, the iterable contains only nodes
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220 for which ``condition(node)`` is true. If `condition` is a
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221 node class ``cls``, it is equivalent to a function consisting
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222 of ``return isinstance(node, cls)``.
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223
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224 If ascend is true, assume siblings to be true as well.
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225
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226 For example, given the following tree::
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227
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228 <paragraph>
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229 <emphasis> <--- emphasis.traverse() and
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230 <strong> <--- strong.traverse() are called.
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231 Foo
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232 Bar
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233 <reference name="Baz" refid="baz">
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234 Baz
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235
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236 Then list(emphasis.traverse()) equals ::
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237
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238 [<emphasis>, <strong>, <#text: Foo>, <#text: Bar>]
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239
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240 and list(strong.traverse(ascend=True)) equals ::
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241
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242 [<strong>, <#text: Foo>, <#text: Bar>, <reference>, <#text: Baz>]
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243 """
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244 if ascend:
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245 siblings=True
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246 # Check for special argument combinations that allow using an
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247 # optimized version of traverse()
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248 if include_self and descend and not siblings:
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249 if condition is None:
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250 return self._all_traverse()
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251 elif isinstance(condition, (types.ClassType, type)):
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252 return self._fast_traverse(condition)
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253 # Check if `condition` is a class (check for TypeType for Python
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254 # implementations that use only new-style classes, like PyPy).
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255 if isinstance(condition, (types.ClassType, type)):
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256 node_class = condition
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257 def condition(node, node_class=node_class):
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258 return isinstance(node, node_class)
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259 r = []
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260 if include_self and (condition is None or condition(self)):
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261 r.append(self)
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262 if descend and len(self.children):
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263 for child in self:
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264 r.extend(child.traverse(include_self=True, descend=True,
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265 siblings=False, ascend=False,
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266 condition=condition))
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267 if siblings or ascend:
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268 node = self
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269 while node.parent:
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270 index = node.parent.index(node)
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271 for sibling in node.parent[index+1:]:
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272 r.extend(sibling.traverse(include_self=True,
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273 descend=descend,
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274 siblings=False, ascend=False,
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275 condition=condition))
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276 if not ascend:
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277 break
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278 else:
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279 node = node.parent
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280 return r
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281
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282 def next_node(self, condition=None, include_self=False, descend=True,
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283 siblings=False, ascend=False):
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284 """
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285 Return the first node in the iterable returned by traverse(),
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286 or None if the iterable is empty.
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287
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288 Parameter list is the same as of traverse. Note that
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289 include_self defaults to 0, though.
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290 """
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291 iterable = self.traverse(condition=condition,
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292 include_self=include_self, descend=descend,
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293 siblings=siblings, ascend=ascend)
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294 try:
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295 return iterable[0]
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296 except IndexError:
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297 return None
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298
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299 if sys.version_info < (3,):
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300 class reprunicode(unicode):
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301 """
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302 A unicode sub-class that removes the initial u from unicode's repr.
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303 """
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304
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305 def __repr__(self):
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306 return unicode.__repr__(self)[1:]
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307
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308
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309 else:
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310 reprunicode = unicode
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311
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312
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313 def ensure_str(s):
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314 """
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315 Failsave conversion of `unicode` to `str`.
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316 """
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317 if sys.version_info < (3,) and isinstance(s, unicode):
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318 return s.encode('ascii', 'backslashreplace')
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319 return s
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320
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321
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322 class Text(Node, reprunicode):
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323
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324 """
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325 Instances are terminal nodes (leaves) containing text only; no child
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326 nodes or attributes. Initialize by passing a string to the constructor.
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327 Access the text itself with the `astext` method.
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328 """
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329
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330 tagname = '#text'
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331
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332 children = ()
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333 """Text nodes have no children, and cannot have children."""
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334
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335 if sys.version_info > (3,):
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336 def __new__(cls, data, rawsource=None):
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337 """Prevent the rawsource argument from propagating to str."""
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338 if isinstance(data, bytes):
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339 raise TypeError('expecting str data, not bytes')
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340 return reprunicode.__new__(cls, data)
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341 else:
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342 def __new__(cls, data, rawsource=None):
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343 """Prevent the rawsource argument from propagating to str."""
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344 return reprunicode.__new__(cls, data)
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345
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346 def __init__(self, data, rawsource=''):
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347
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348 self.rawsource = rawsource
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349 """The raw text from which this element was constructed."""
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350
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351 def shortrepr(self, maxlen=18):
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352 data = self
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353 if len(data) > maxlen:
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354 data = data[:maxlen-4] + ' ...'
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355 return '<%s: %r>' % (self.tagname, reprunicode(data))
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356
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357 def __repr__(self):
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358 return self.shortrepr(maxlen=68)
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359
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360 def _dom_node(self, domroot):
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361 return domroot.createTextNode(unicode(self))
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362
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363 def astext(self):
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364 return reprunicode(self)
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365
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366 # Note about __unicode__: The implementation of __unicode__ here,
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367 # and the one raising NotImplemented in the superclass Node had
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368 # to be removed when changing Text to a subclass of unicode instead
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369 # of UserString, since there is no way to delegate the __unicode__
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370 # call to the superclass unicode:
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371 # unicode itself does not have __unicode__ method to delegate to
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372 # and calling unicode(self) or unicode.__new__ directly creates
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373 # an infinite loop
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374
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375 def copy(self):
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376 return self.__class__(reprunicode(self), rawsource=self.rawsource)
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377
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378 def deepcopy(self):
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379 return self.copy()
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380
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381 def pformat(self, indent=' ', level=0):
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382 result = []
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383 indent = indent * level
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384 for line in self.splitlines():
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385 result.append(indent + line + '\n')
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386 return ''.join(result)
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387
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388 # rstrip and lstrip are used by substitution definitions where
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389 # they are expected to return a Text instance, this was formerly
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390 # taken care of by UserString. Note that then and now the
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391 # rawsource member is lost.
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392
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393 def rstrip(self, chars=None):
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394 return self.__class__(reprunicode.rstrip(self, chars))
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395 def lstrip(self, chars=None):
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396 return self.__class__(reprunicode.lstrip(self, chars))
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397
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398 class Element(Node):
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399
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400 """
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401 `Element` is the superclass to all specific elements.
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402
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403 Elements contain attributes and child nodes. Elements emulate
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404 dictionaries for attributes, indexing by attribute name (a string). To
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405 set the attribute 'att' to 'value', do::
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406
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407 element['att'] = 'value'
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408
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409 There are two special attributes: 'ids' and 'names'. Both are
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410 lists of unique identifiers, and names serve as human interfaces
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411 to IDs. Names are case- and whitespace-normalized (see the
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412 fully_normalize_name() function), and IDs conform to the regular
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413 expression ``[a-z](-?[a-z0-9]+)*`` (see the make_id() function).
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414
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415 Elements also emulate lists for child nodes (element nodes and/or text
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416 nodes), indexing by integer. To get the first child node, use::
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417
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418 element[0]
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419
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420 Elements may be constructed using the ``+=`` operator. To add one new
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421 child node to element, do::
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422
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423 element += node
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424
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425 This is equivalent to ``element.append(node)``.
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426
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427 To add a list of multiple child nodes at once, use the same ``+=``
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428 operator::
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429
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430 element += [node1, node2]
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431
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432 This is equivalent to ``element.extend([node1, node2])``.
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433 """
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434
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435 basic_attributes = ('ids', 'classes', 'names', 'dupnames')
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436 """List attributes which are defined for every Element-derived class
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437 instance and can be safely transferred to a different node."""
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438
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439 local_attributes = ('backrefs',)
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440 """A list of class-specific attributes that should not be copied with the
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441 standard attributes when replacing a node.
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442
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443 NOTE: Derived classes should override this value to prevent any of its
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444 attributes being copied by adding to the value in its parent class."""
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445
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446 list_attributes = basic_attributes + local_attributes
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447 """List attributes, automatically initialized to empty lists for
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448 all nodes."""
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449
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450 known_attributes = list_attributes + ('source',)
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451 """List attributes that are known to the Element base class."""
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452
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453 tagname = None
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454 """The element generic identifier. If None, it is set as an instance
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455 attribute to the name of the class."""
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456
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457 child_text_separator = '\n\n'
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458 """Separator for child nodes, used by `astext()` method."""
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459
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460 def __init__(self, rawsource='', *children, **attributes):
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461 self.rawsource = rawsource
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462 """The raw text from which this element was constructed."""
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463
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464 self.children = []
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465 """List of child nodes (elements and/or `Text`)."""
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466
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467 self.extend(children) # maintain parent info
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468
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469 self.attributes = {}
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470 """Dictionary of attribute {name: value}."""
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471
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472 # Initialize list attributes.
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473 for att in self.list_attributes:
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474 self.attributes[att] = []
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475
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476 for att, value in attributes.items():
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477 att = att.lower()
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478 if att in self.list_attributes:
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479 # mutable list; make a copy for this node
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480 self.attributes[att] = value[:]
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481 else:
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482 self.attributes[att] = value
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483
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484 if self.tagname is None:
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485 self.tagname = self.__class__.__name__
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486
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487 def _dom_node(self, domroot):
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488 element = domroot.createElement(self.tagname)
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489 for attribute, value in self.attlist():
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490 if isinstance(value, list):
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491 value = ' '.join([serial_escape('%s' % (v,)) for v in value])
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492 element.setAttribute(attribute, '%s' % value)
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493 for child in self.children:
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494 element.appendChild(child._dom_node(domroot))
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495 return element
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496
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497 def __repr__(self):
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498 data = ''
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499 for c in self.children:
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500 data += c.shortrepr()
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501 if len(data) > 60:
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502 data = data[:56] + ' ...'
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503 break
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504 if self['names']:
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505 return '<%s "%s": %s>' % (self.__class__.__name__,
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506 '; '.join([ensure_str(n) for n in self['names']]), data)
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507 else:
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508 return '<%s: %s>' % (self.__class__.__name__, data)
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509
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510 def shortrepr(self):
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511 if self['names']:
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512 return '<%s "%s"...>' % (self.__class__.__name__,
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513 '; '.join([ensure_str(n) for n in self['names']]))
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514 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
515 return '<%s...>' % self.tagname
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
516
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
517 def __unicode__(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
518 if self.children:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
519 return u'%s%s%s' % (self.starttag(),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
520 ''.join([unicode(c) for c in self.children]),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
521 self.endtag())
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
522 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
523 return self.emptytag()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
524
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
525 if sys.version_info > (3,):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
526 # 2to3 doesn't convert __unicode__ to __str__
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
527 __str__ = __unicode__
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
528
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
529 def starttag(self, quoteattr=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
530 # the optional arg is used by the docutils_xml writer
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
531 if quoteattr is None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
532 quoteattr = pseudo_quoteattr
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
533 parts = [self.tagname]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
534 for name, value in self.attlist():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
535 if value is None: # boolean attribute
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
536 parts.append(name)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
537 continue
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
538 if isinstance(value, list):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
539 values = [serial_escape('%s' % (v,)) for v in value]
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bcclaywell
parents:
diff changeset
540 value = ' '.join(values)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
541 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
542 value = unicode(value)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
543 value = quoteattr(value)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
544 parts.append(u'%s=%s' % (name, value))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
545 return u'<%s>' % u' '.join(parts)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
546
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
547 def endtag(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
548 return '</%s>' % self.tagname
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
549
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bcclaywell
parents:
diff changeset
550 def emptytag(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
551 return u'<%s/>' % u' '.join([self.tagname] +
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
552 ['%s="%s"' % (n, v)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
553 for n, v in self.attlist()])
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
554
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
555 def __len__(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
556 return len(self.children)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
557
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
558 def __contains__(self, key):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
559 # support both membership test for children and attributes
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
560 # (has_key is translated to "in" by 2to3)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
561 if isinstance(key, basestring):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
562 return key in self.attributes
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
563 return key in self.children
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
564
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
565 def __getitem__(self, key):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
566 if isinstance(key, basestring):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
567 return self.attributes[key]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
568 elif isinstance(key, int):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
569 return self.children[key]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
570 elif isinstance(key, types.SliceType):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
571 assert key.step in (None, 1), 'cannot handle slice with stride'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
572 return self.children[key.start:key.stop]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
573 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
574 raise TypeError, ('element index must be an integer, a slice, or '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
575 'an attribute name string')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
576
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
577 def __setitem__(self, key, item):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
578 if isinstance(key, basestring):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
579 self.attributes[str(key)] = item
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
580 elif isinstance(key, int):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
581 self.setup_child(item)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
582 self.children[key] = item
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
583 elif isinstance(key, types.SliceType):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
584 assert key.step in (None, 1), 'cannot handle slice with stride'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
585 for node in item:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
586 self.setup_child(node)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
587 self.children[key.start:key.stop] = item
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
588 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
589 raise TypeError, ('element index must be an integer, a slice, or '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
590 'an attribute name string')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
591
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
592 def __delitem__(self, key):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
593 if isinstance(key, basestring):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
594 del self.attributes[key]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
595 elif isinstance(key, int):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
596 del self.children[key]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
597 elif isinstance(key, types.SliceType):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
598 assert key.step in (None, 1), 'cannot handle slice with stride'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
599 del self.children[key.start:key.stop]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
600 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
601 raise TypeError, ('element index must be an integer, a simple '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
602 'slice, or an attribute name string')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
603
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
604 def __add__(self, other):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
605 return self.children + other
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
606
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
607 def __radd__(self, other):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
608 return other + self.children
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
609
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
610 def __iadd__(self, other):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
611 """Append a node or a list of nodes to `self.children`."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
612 if isinstance(other, Node):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
613 self.append(other)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
614 elif other is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
615 self.extend(other)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
616 return self
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
617
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
618 def astext(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
619 return self.child_text_separator.join(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
620 [child.astext() for child in self.children])
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
621
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
622 def non_default_attributes(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
623 atts = {}
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
624 for key, value in self.attributes.items():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
625 if self.is_not_default(key):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
626 atts[key] = value
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
627 return atts
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
628
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
629 def attlist(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
630 attlist = self.non_default_attributes().items()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
631 attlist.sort()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
632 return attlist
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
633
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
634 def get(self, key, failobj=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
635 return self.attributes.get(key, failobj)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
636
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
637 def hasattr(self, attr):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
638 return attr in self.attributes
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
639
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
640 def delattr(self, attr):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
641 if attr in self.attributes:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
642 del self.attributes[attr]
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643
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644 def setdefault(self, key, failobj=None):
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645 return self.attributes.setdefault(key, failobj)
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646
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647 has_key = hasattr
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648
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649 # support operator ``in``
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650 __contains__ = hasattr
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651
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652 def get_language_code(self, fallback=''):
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653 """Return node's language tag.
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654
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655 Look iteratively in self and parents for a class argument
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656 starting with ``language-`` and return the remainder of it
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657 (which should be a `BCP49` language tag) or the `fallback`.
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658 """
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659 for cls in self.get('classes', []):
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660 if cls.startswith('language-'):
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661 return cls[9:]
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662 try:
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663 return self.parent.get_language(fallback)
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664 except AttributeError:
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665 return fallback
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666
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667 def append(self, item):
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668 self.setup_child(item)
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669 self.children.append(item)
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670
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671 def extend(self, item):
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672 for node in item:
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673 self.append(node)
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674
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675 def insert(self, index, item):
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676 if isinstance(item, Node):
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677 self.setup_child(item)
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678 self.children.insert(index, item)
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679 elif item is not None:
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680 self[index:index] = item
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681
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682 def pop(self, i=-1):
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683 return self.children.pop(i)
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684
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685 def remove(self, item):
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686 self.children.remove(item)
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diff changeset
687
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688 def index(self, item):
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689 return self.children.index(item)
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690
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691 def is_not_default(self, key):
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692 if self[key] == [] and key in self.list_attributes:
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693 return 0
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694 else:
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695 return 1
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696
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697 def update_basic_atts(self, dict_):
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698 """
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699 Update basic attributes ('ids', 'names', 'classes',
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700 'dupnames', but not 'source') from node or dictionary `dict_`.
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701 """
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702 if isinstance(dict_, Node):
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703 dict_ = dict_.attributes
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704 for att in self.basic_attributes:
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705 self.append_attr_list(att, dict_.get(att, []))
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706
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707 def append_attr_list(self, attr, values):
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708 """
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parents:
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709 For each element in values, if it does not exist in self[attr], append
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bcclaywell
parents:
diff changeset
710 it.
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parents:
diff changeset
711
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712 NOTE: Requires self[attr] and values to be sequence type and the
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bcclaywell
parents:
diff changeset
713 former should specifically be a list.
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bcclaywell
parents:
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714 """
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bcclaywell
parents:
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715 # List Concatenation
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716 for value in values:
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717 if not value in self[attr]:
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718 self[attr].append(value)
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719
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parents:
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720 def coerce_append_attr_list(self, attr, value):
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parents:
diff changeset
721 """
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parents:
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722 First, convert both self[attr] and value to a non-string sequence
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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723 type; if either is not already a sequence, convert it to a list of one
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parents:
diff changeset
724 element. Then call append_attr_list.
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parents:
diff changeset
725
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parents:
diff changeset
726 NOTE: self[attr] and value both must not be None.
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parents:
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727 """
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bcclaywell
parents:
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728 # List Concatenation
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parents:
diff changeset
729 if not isinstance(self.get(attr), list):
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parents:
diff changeset
730 self[attr] = [self[attr]]
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parents:
diff changeset
731 if not isinstance(value, list):
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parents:
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732 value = [value]
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parents:
diff changeset
733 self.append_attr_list(attr, value)
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parents:
diff changeset
734
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parents:
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735 def replace_attr(self, attr, value, force = True):
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parents:
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736 """
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bcclaywell
parents:
diff changeset
737 If self[attr] does not exist or force is True or omitted, set
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
738 self[attr] to value, otherwise do nothing.
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parents:
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739 """
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bcclaywell
parents:
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740 # One or the other
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parents:
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741 if force or self.get(attr) is None:
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parents:
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742 self[attr] = value
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parents:
diff changeset
743
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parents:
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744 def copy_attr_convert(self, attr, value, replace = True):
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parents:
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745 """
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parents:
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746 If attr is an attribute of self, set self[attr] to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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747 [self[attr], value], otherwise set self[attr] to value.
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parents:
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748
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parents:
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749 NOTE: replace is not used by this function and is kept only for
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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750 compatibility with the other copy functions.
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parents:
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751 """
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parents:
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752 if self.get(attr) is not value:
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parents:
diff changeset
753 self.coerce_append_attr_list(attr, value)
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parents:
diff changeset
754
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parents:
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755 def copy_attr_coerce(self, attr, value, replace):
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parents:
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756 """
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bcclaywell
parents:
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757 If attr is an attribute of self and either self[attr] or value is a
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parents:
diff changeset
758 list, convert all non-sequence values to a sequence of 1 element and
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bcclaywell
parents:
diff changeset
759 then concatenate the two sequence, setting the result to self[attr].
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parents:
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760 If both self[attr] and value are non-sequences and replace is True or
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parents:
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761 self[attr] is None, replace self[attr] with value. Otherwise, do
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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762 nothing.
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parents:
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763 """
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parents:
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764 if self.get(attr) is not value:
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parents:
diff changeset
765 if isinstance(self.get(attr), list) or \
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parents:
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766 isinstance(value, list):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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767 self.coerce_append_attr_list(attr, value)
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parents:
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768 else:
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parents:
diff changeset
769 self.replace_attr(attr, value, replace)
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parents:
diff changeset
770
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bcclaywell
parents:
diff changeset
771 def copy_attr_concatenate(self, attr, value, replace):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
772 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
773 If attr is an attribute of self and both self[attr] and value are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
774 lists, concatenate the two sequences, setting the result to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
775 self[attr]. If either self[attr] or value are non-sequences and
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
776 replace is True or self[attr] is None, replace self[attr] with value.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
777 Otherwise, do nothing.
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bcclaywell
parents:
diff changeset
778 """
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bcclaywell
parents:
diff changeset
779 if self.get(attr) is not value:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
780 if isinstance(self.get(attr), list) and \
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
781 isinstance(value, list):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
782 self.append_attr_list(attr, value)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
783 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
784 self.replace_attr(attr, value, replace)
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bcclaywell
parents:
diff changeset
785
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
786 def copy_attr_consistent(self, attr, value, replace):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
787 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
788 If replace is True or selfpattr] is None, replace self[attr] with
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
789 value. Otherwise, do nothing.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
790 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
791 if self.get(attr) is not value:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
792 self.replace_attr(attr, value, replace)
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bcclaywell
parents:
diff changeset
793
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
794 def update_all_atts(self, dict_, update_fun = copy_attr_consistent,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
795 replace = True, and_source = False):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
796 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
797 Updates all attributes from node or dictionary `dict_`.
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bcclaywell
parents:
diff changeset
798
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
799 Appends the basic attributes ('ids', 'names', 'classes',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
800 'dupnames', but not 'source') and then, for all other attributes in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
801 dict_, updates the same attribute in self. When attributes with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
802 same identifier appear in both self and dict_, the two values are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
803 merged based on the value of update_fun. Generally, when replace is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
804 True, the values in self are replaced or merged with the values in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
805 dict_; otherwise, the values in self may be preserved or merged. When
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
806 and_source is True, the 'source' attribute is included in the copy.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
807
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
808 NOTE: When replace is False, and self contains a 'source' attribute,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
809 'source' is not replaced even when dict_ has a 'source'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
810 attribute, though it may still be merged into a list depending
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
811 on the value of update_fun.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
812 NOTE: It is easier to call the update-specific methods then to pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
813 the update_fun method to this function.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
814 """
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bcclaywell
parents:
diff changeset
815 if isinstance(dict_, Node):
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bcclaywell
parents:
diff changeset
816 dict_ = dict_.attributes
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bcclaywell
parents:
diff changeset
817
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bcclaywell
parents:
diff changeset
818 # Include the source attribute when copying?
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
819 if and_source:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
820 filter_fun = self.is_not_list_attribute
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bcclaywell
parents:
diff changeset
821 else:
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bcclaywell
parents:
diff changeset
822 filter_fun = self.is_not_known_attribute
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bcclaywell
parents:
diff changeset
823
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
824 # Copy the basic attributes
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bcclaywell
parents:
diff changeset
825 self.update_basic_atts(dict_)
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bcclaywell
parents:
diff changeset
826
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bcclaywell
parents:
diff changeset
827 # Grab other attributes in dict_ not in self except the
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bcclaywell
parents:
diff changeset
828 # (All basic attributes should be copied already)
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bcclaywell
parents:
diff changeset
829 for att in filter(filter_fun, dict_):
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bcclaywell
parents:
diff changeset
830 update_fun(self, att, dict_[att], replace)
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bcclaywell
parents:
diff changeset
831
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
832 def update_all_atts_consistantly(self, dict_, replace = True,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
833 and_source = False):
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bcclaywell
parents:
diff changeset
834 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
835 Updates all attributes from node or dictionary `dict_`.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
836
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
837 Appends the basic attributes ('ids', 'names', 'classes',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
838 'dupnames', but not 'source') and then, for all other attributes in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
839 dict_, updates the same attribute in self. When attributes with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
840 same identifier appear in both self and dict_ and replace is True, the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
841 values in self are replaced with the values in dict_; otherwise, the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
842 values in self are preserved. When and_source is True, the 'source'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
843 attribute is included in the copy.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
844
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
845 NOTE: When replace is False, and self contains a 'source' attribute,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
846 'source' is not replaced even when dict_ has a 'source'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
847 attribute, though it may still be merged into a list depending
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
848 on the value of update_fun.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
849 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
850 self.update_all_atts(dict_, Element.copy_attr_consistent, replace,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
851 and_source)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
852
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
853 def update_all_atts_concatenating(self, dict_, replace = True,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
854 and_source = False):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
855 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
856 Updates all attributes from node or dictionary `dict_`.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
857
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
858 Appends the basic attributes ('ids', 'names', 'classes',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
859 'dupnames', but not 'source') and then, for all other attributes in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
860 dict_, updates the same attribute in self. When attributes with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
861 same identifier appear in both self and dict_ whose values aren't each
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
862 lists and replace is True, the values in self are replaced with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
863 values in dict_; if the values from self and dict_ for the given
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
864 identifier are both of list type, then the two lists are concatenated
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
865 and the result stored in self; otherwise, the values in self are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
866 preserved. When and_source is True, the 'source' attribute is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
867 included in the copy.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
868
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
869 NOTE: When replace is False, and self contains a 'source' attribute,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
870 'source' is not replaced even when dict_ has a 'source'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
871 attribute, though it may still be merged into a list depending
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
872 on the value of update_fun.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
873 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
874 self.update_all_atts(dict_, Element.copy_attr_concatenate, replace,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
875 and_source)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
876
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
877 def update_all_atts_coercion(self, dict_, replace = True,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
878 and_source = False):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
879 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
880 Updates all attributes from node or dictionary `dict_`.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
881
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
882 Appends the basic attributes ('ids', 'names', 'classes',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
883 'dupnames', but not 'source') and then, for all other attributes in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
884 dict_, updates the same attribute in self. When attributes with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
885 same identifier appear in both self and dict_ whose values are both
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
886 not lists and replace is True, the values in self are replaced with
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
887 the values in dict_; if either of the values from self and dict_ for
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
888 the given identifier are of list type, then first any non-lists are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
889 converted to 1-element lists and then the two lists are concatenated
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
890 and the result stored in self; otherwise, the values in self are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
891 preserved. When and_source is True, the 'source' attribute is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
892 included in the copy.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
893
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
894 NOTE: When replace is False, and self contains a 'source' attribute,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
895 'source' is not replaced even when dict_ has a 'source'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
896 attribute, though it may still be merged into a list depending
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
897 on the value of update_fun.
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parents:
diff changeset
898 """
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bcclaywell
parents:
diff changeset
899 self.update_all_atts(dict_, Element.copy_attr_coerce, replace,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
900 and_source)
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bcclaywell
parents:
diff changeset
901
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bcclaywell
parents:
diff changeset
902 def update_all_atts_convert(self, dict_, and_source = False):
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bcclaywell
parents:
diff changeset
903 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
904 Updates all attributes from node or dictionary `dict_`.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
905
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bcclaywell
parents:
diff changeset
906 Appends the basic attributes ('ids', 'names', 'classes',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
907 'dupnames', but not 'source') and then, for all other attributes in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
908 dict_, updates the same attribute in self. When attributes with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
909 same identifier appear in both self and dict_ then first any non-lists
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
910 are converted to 1-element lists and then the two lists are
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
911 concatenated and the result stored in self; otherwise, the values in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
912 self are preserved. When and_source is True, the 'source' attribute
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
913 is included in the copy.
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bcclaywell
parents:
diff changeset
914
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bcclaywell
parents:
diff changeset
915 NOTE: When replace is False, and self contains a 'source' attribute,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
916 'source' is not replaced even when dict_ has a 'source'
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bcclaywell
parents:
diff changeset
917 attribute, though it may still be merged into a list depending
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bcclaywell
parents:
diff changeset
918 on the value of update_fun.
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parents:
diff changeset
919 """
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parents:
diff changeset
920 self.update_all_atts(dict_, Element.copy_attr_convert,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
921 and_source = and_source)
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parents:
diff changeset
922
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parents:
diff changeset
923 def clear(self):
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parents:
diff changeset
924 self.children = []
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parents:
diff changeset
925
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parents:
diff changeset
926 def replace(self, old, new):
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bcclaywell
parents:
diff changeset
927 """Replace one child `Node` with another child or children."""
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bcclaywell
parents:
diff changeset
928 index = self.index(old)
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parents:
diff changeset
929 if isinstance(new, Node):
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parents:
diff changeset
930 self.setup_child(new)
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parents:
diff changeset
931 self[index] = new
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parents:
diff changeset
932 elif new is not None:
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parents:
diff changeset
933 self[index:index+1] = new
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parents:
diff changeset
934
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parents:
diff changeset
935 def replace_self(self, new):
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bcclaywell
parents:
diff changeset
936 """
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bcclaywell
parents:
diff changeset
937 Replace `self` node with `new`, where `new` is a node or a
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
938 list of nodes.
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parents:
diff changeset
939 """
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bcclaywell
parents:
diff changeset
940 update = new
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bcclaywell
parents:
diff changeset
941 if not isinstance(new, Node):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
942 # `new` is a list; update first child.
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bcclaywell
parents:
diff changeset
943 try:
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bcclaywell
parents:
diff changeset
944 update = new[0]
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bcclaywell
parents:
diff changeset
945 except IndexError:
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bcclaywell
parents:
diff changeset
946 update = None
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bcclaywell
parents:
diff changeset
947 if isinstance(update, Element):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
948 update.update_basic_atts(self)
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parents:
diff changeset
949 else:
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parents:
diff changeset
950 # `update` is a Text node or `new` is an empty list.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
951 # Assert that we aren't losing any attributes.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
952 for att in self.basic_attributes:
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parents:
diff changeset
953 assert not self[att], \
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
954 'Losing "%s" attribute: %s' % (att, self[att])
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bcclaywell
parents:
diff changeset
955 self.parent.replace(self, new)
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parents:
diff changeset
956
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bcclaywell
parents:
diff changeset
957 def first_child_matching_class(self, childclass, start=0, end=sys.maxint):
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parents:
diff changeset
958 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
959 Return the index of the first child whose class exactly matches.
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bcclaywell
parents:
diff changeset
960
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
961 Parameters:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
962
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
963 - `childclass`: A `Node` subclass to search for, or a tuple of `Node`
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
964 classes. If a tuple, any of the classes may match.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
965 - `start`: Initial index to check.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
966 - `end`: Initial index to *not* check.
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bcclaywell
parents:
diff changeset
967 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
968 if not isinstance(childclass, tuple):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
969 childclass = (childclass,)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
970 for index in range(start, min(len(self), end)):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
971 for c in childclass:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
972 if isinstance(self[index], c):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
973 return index
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
974 return None
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
975
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
976 def first_child_not_matching_class(self, childclass, start=0,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
977 end=sys.maxint):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
978 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
979 Return the index of the first child whose class does *not* match.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
980
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
981 Parameters:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
982
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
983 - `childclass`: A `Node` subclass to skip, or a tuple of `Node`
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
984 classes. If a tuple, none of the classes may match.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
985 - `start`: Initial index to check.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
986 - `end`: Initial index to *not* check.
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bcclaywell
parents:
diff changeset
987 """
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bcclaywell
parents:
diff changeset
988 if not isinstance(childclass, tuple):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
989 childclass = (childclass,)
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parents:
diff changeset
990 for index in range(start, min(len(self), end)):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
991 for c in childclass:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
992 if isinstance(self.children[index], c):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
993 break
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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994 else:
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bcclaywell
parents:
diff changeset
995 return index
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
996 return None
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bcclaywell
parents:
diff changeset
997
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
998 def pformat(self, indent=' ', level=0):
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parents:
diff changeset
999 return ''.join(['%s%s\n' % (indent * level, self.starttag())] +
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1000 [child.pformat(indent, level+1)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1001 for child in self.children])
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bcclaywell
parents:
diff changeset
1002
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parents:
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1003 def copy(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1004 return self.__class__(rawsource=self.rawsource, **self.attributes)
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parents:
diff changeset
1005
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bcclaywell
parents:
diff changeset
1006 def deepcopy(self):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1007 copy = self.copy()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1008 copy.extend([child.deepcopy() for child in self.children])
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1009 return copy
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1010
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1011 def set_class(self, name):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1012 """Add a new class to the "classes" attribute."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1013 warnings.warn('docutils.nodes.Element.set_class deprecated; '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1014 "append to Element['classes'] list attribute directly",
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1015 DeprecationWarning, stacklevel=2)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1016 assert ' ' not in name
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1017 self['classes'].append(name.lower())
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parents:
diff changeset
1018
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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1019 def note_referenced_by(self, name=None, id=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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1020 """Note that this Element has been referenced by its name
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1021 `name` or id `id`."""
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1022 self.referenced = 1
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1023 # Element.expect_referenced_by_* dictionaries map names or ids
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1024 # to nodes whose ``referenced`` attribute is set to true as
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1025 # soon as this node is referenced by the given name or id.
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1026 # Needed for target propagation.
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1027 by_name = getattr(self, 'expect_referenced_by_name', {}).get(name)
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1028 by_id = getattr(self, 'expect_referenced_by_id', {}).get(id)
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1029 if by_name:
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1030 assert name is not None
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1031 by_name.referenced = 1
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1032 if by_id:
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1033 assert id is not None
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1034 by_id.referenced = 1
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1035
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1036 @classmethod
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1037 def is_not_list_attribute(cls, attr):
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1038 """
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1039 Returns True if and only if the given attribute is NOT one of the
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1040 basic list attributes defined for all Elements.
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1041 """
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1042 return attr not in cls.list_attributes
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1043
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1044 @classmethod
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1045 def is_not_known_attribute(cls, attr):
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1046 """
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1047 Returns True if and only if the given attribute is NOT recognized by
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1048 this class.
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1049 """
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1050 return attr not in cls.known_attributes
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1051
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1052
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1053 class TextElement(Element):
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1054
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1055 """
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1056 An element which directly contains text.
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1057
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1058 Its children are all `Text` or `Inline` subclass nodes. You can
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1059 check whether an element's context is inline simply by checking whether
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1060 its immediate parent is a `TextElement` instance (including subclasses).
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1061 This is handy for nodes like `image` that can appear both inline and as
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1062 standalone body elements.
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1063
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1064 If passing children to `__init__()`, make sure to set `text` to
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1065 ``''`` or some other suitable value.
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1066 """
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1067
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1068 child_text_separator = ''
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1069 """Separator for child nodes, used by `astext()` method."""
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1070
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1071 def __init__(self, rawsource='', text='', *children, **attributes):
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1072 if text != '':
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1073 textnode = Text(text)
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1074 Element.__init__(self, rawsource, textnode, *children,
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1075 **attributes)
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1076 else:
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1077 Element.__init__(self, rawsource, *children, **attributes)
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1078
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1079
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1080 class FixedTextElement(TextElement):
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1081
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1082 """An element which directly contains preformatted text."""
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1083
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1084 def __init__(self, rawsource='', text='', *children, **attributes):
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1085 TextElement.__init__(self, rawsource, text, *children, **attributes)
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1086 self.attributes['xml:space'] = 'preserve'
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1087
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1088
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1089 # ========
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1090 # Mixins
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1091 # ========
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1092
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1093 class Resolvable:
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1094
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1095 resolved = 0
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1096
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1097
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1098 class BackLinkable:
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1099
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1100 def add_backref(self, refid):
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1101 self['backrefs'].append(refid)
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1102
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1103
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1104 # ====================
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1105 # Element Categories
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1106 # ====================
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1107
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1108 class Root: pass
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1109
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1110 class Titular: pass
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1111
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1112 class PreBibliographic:
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1113 """Category of Node which may occur before Bibliographic Nodes."""
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1114
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1115 class Bibliographic: pass
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1116
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1117 class Decorative(PreBibliographic): pass
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1118
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1119 class Structural: pass
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1120
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1121 class Body: pass
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1122
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1123 class General(Body): pass
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1124
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1125 class Sequential(Body):
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1126 """List-like elements."""
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1127
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1128 class Admonition(Body): pass
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1129
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1130 class Special(Body):
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1131 """Special internal body elements."""
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1132
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1133 class Invisible(PreBibliographic):
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1134 """Internal elements that don't appear in output."""
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1135
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1136 class Part: pass
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1137
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1138 class Inline: pass
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1139
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1140 class Referential(Resolvable): pass
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1141
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1142
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1143 class Targetable(Resolvable):
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1144
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1145 referenced = 0
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1146
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1147 indirect_reference_name = None
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1148 """Holds the whitespace_normalized_name (contains mixed case) of a target.
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1149 Required for MoinMoin/reST compatibility."""
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1150
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1151
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1152 class Labeled:
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1153 """Contains a `label` as its first element."""
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1154
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1155
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1156 # ==============
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1157 # Root Element
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1158 # ==============
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1159
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1160 class document(Root, Structural, Element):
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1161
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1162 """
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1163 The document root element.
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1164
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1165 Do not instantiate this class directly; use
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1166 `docutils.utils.new_document()` instead.
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1167 """
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1168
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1169 def __init__(self, settings, reporter, *args, **kwargs):
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1170 Element.__init__(self, *args, **kwargs)
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1171
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1172 self.current_source = None
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1173 """Path to or description of the input source being processed."""
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1174
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1175 self.current_line = None
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1176 """Line number (1-based) of `current_source`."""
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1177
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1178 self.settings = settings
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1179 """Runtime settings data record."""
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1180
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1181 self.reporter = reporter
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1182 """System message generator."""
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1183
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1184 self.indirect_targets = []
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1185 """List of indirect target nodes."""
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1186
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1187 self.substitution_defs = {}
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1188 """Mapping of substitution names to substitution_definition nodes."""
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1189
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1190 self.substitution_names = {}
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1191 """Mapping of case-normalized substitution names to case-sensitive
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1192 names."""
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1193
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1194 self.refnames = {}
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1195 """Mapping of names to lists of referencing nodes."""
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1196
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1197 self.refids = {}
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1198 """Mapping of ids to lists of referencing nodes."""
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1199
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1200 self.nameids = {}
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1201 """Mapping of names to unique id's."""
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1202
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1203 self.nametypes = {}
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1204 """Mapping of names to hyperlink type (boolean: True => explicit,
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1205 False => implicit."""
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1206
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1207 self.ids = {}
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1208 """Mapping of ids to nodes."""
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1209
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1210 self.footnote_refs = {}
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1211 """Mapping of footnote labels to lists of footnote_reference nodes."""
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1212
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1213 self.citation_refs = {}
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1214 """Mapping of citation labels to lists of citation_reference nodes."""
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1215
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1216 self.autofootnotes = []
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1217 """List of auto-numbered footnote nodes."""
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1218
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1219 self.autofootnote_refs = []
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1220 """List of auto-numbered footnote_reference nodes."""
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1221
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1222 self.symbol_footnotes = []
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1223 """List of symbol footnote nodes."""
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1224
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1225 self.symbol_footnote_refs = []
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1226 """List of symbol footnote_reference nodes."""
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1227
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1228 self.footnotes = []
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1229 """List of manually-numbered footnote nodes."""
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1230
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1231 self.citations = []
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1232 """List of citation nodes."""
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1233
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1234 self.autofootnote_start = 1
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1235 """Initial auto-numbered footnote number."""
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1236
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1237 self.symbol_footnote_start = 0
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1238 """Initial symbol footnote symbol index."""
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1239
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1240 self.id_start = 1
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1241 """Initial ID number."""
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1242
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1243 self.parse_messages = []
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1244 """System messages generated while parsing."""
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1245
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1246 self.transform_messages = []
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1247 """System messages generated while applying transforms."""
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1248
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1249 import docutils.transforms
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1250 self.transformer = docutils.transforms.Transformer(self)
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1251 """Storage for transforms to be applied to this document."""
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1252
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1253 self.decoration = None
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1254 """Document's `decoration` node."""
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1255
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1256 self.document = self
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1257
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1258 def __getstate__(self):
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1259 """
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1260 Return dict with unpicklable references removed.
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1261 """
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1262 state = self.__dict__.copy()
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1263 state['reporter'] = None
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1264 state['transformer'] = None
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1265 return state
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1266
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1267 def asdom(self, dom=None):
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1268 """Return a DOM representation of this document."""
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1269 if dom is None:
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1270 import xml.dom.minidom as dom
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1271 domroot = dom.Document()
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1272 domroot.appendChild(self._dom_node(domroot))
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1273 return domroot
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1274
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1275 def set_id(self, node, msgnode=None):
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1276 for id in node['ids']:
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1277 if id in self.ids and self.ids[id] is not node:
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1278 msg = self.reporter.severe('Duplicate ID: "%s".' % id)
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1279 if msgnode != None:
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1280 msgnode += msg
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bcclaywell
parents:
diff changeset
1281 if not node['ids']:
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bcclaywell
parents:
diff changeset
1282 for name in node['names']:
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bcclaywell
parents:
diff changeset
1283 id = self.settings.id_prefix + make_id(name)
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parents:
diff changeset
1284 if id and id not in self.ids:
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bcclaywell
parents:
diff changeset
1285 break
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parents:
diff changeset
1286 else:
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bcclaywell
parents:
diff changeset
1287 id = ''
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bcclaywell
parents:
diff changeset
1288 while not id or id in self.ids:
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bcclaywell
parents:
diff changeset
1289 id = (self.settings.id_prefix +
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bcclaywell
parents:
diff changeset
1290 self.settings.auto_id_prefix + str(self.id_start))
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bcclaywell
parents:
diff changeset
1291 self.id_start += 1
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bcclaywell
parents:
diff changeset
1292 node['ids'].append(id)
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bcclaywell
parents:
diff changeset
1293 self.ids[id] = node
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bcclaywell
parents:
diff changeset
1294 return id
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parents:
diff changeset
1295
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parents:
diff changeset
1296 def set_name_id_map(self, node, id, msgnode=None, explicit=None):
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bcclaywell
parents:
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1297 """
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bcclaywell
parents:
diff changeset
1298 `self.nameids` maps names to IDs, while `self.nametypes` maps names to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1299 booleans representing hyperlink type (True==explicit,
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parents:
diff changeset
1300 False==implicit). This method updates the mappings.
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parents:
diff changeset
1301
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parents:
diff changeset
1302 The following state transition table shows how `self.nameids` ("ids")
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parents:
diff changeset
1303 and `self.nametypes` ("types") change with new input (a call to this
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bcclaywell
parents:
diff changeset
1304 method), and what actions are performed ("implicit"-type system
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parents:
diff changeset
1305 messages are INFO/1, and "explicit"-type system messages are ERROR/3):
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parents:
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1306
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parents:
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1307 ==== ===== ======== ======== ======= ==== ===== =====
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parents:
diff changeset
1308 Old State Input Action New State Notes
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parents:
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1309 ----------- -------- ----------------- ----------- -----
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parents:
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1310 ids types new type sys.msg. dupname ids types
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parents:
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1311 ==== ===== ======== ======== ======= ==== ===== =====
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parents:
diff changeset
1312 - - explicit - - new True
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parents:
diff changeset
1313 - - implicit - - new False
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parents:
diff changeset
1314 None False explicit - - new True
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parents:
diff changeset
1315 old False explicit implicit old new True
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parents:
diff changeset
1316 None True explicit explicit new None True
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parents:
diff changeset
1317 old True explicit explicit new,old None True [#]_
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parents:
diff changeset
1318 None False implicit implicit new None False
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bcclaywell
parents:
diff changeset
1319 old False implicit implicit new,old None False
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parents:
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1320 None True implicit implicit new None True
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bcclaywell
parents:
diff changeset
1321 old True implicit implicit new old True
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parents:
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1322 ==== ===== ======== ======== ======= ==== ===== =====
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parents:
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1323
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parents:
diff changeset
1324 .. [#] Do not clear the name-to-id map or invalidate the old target if
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bcclaywell
parents:
diff changeset
1325 both old and new targets are external and refer to identical URIs.
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bcclaywell
parents:
diff changeset
1326 The new target is invalidated regardless.
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parents:
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1327 """
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parents:
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1328 for name in node['names']:
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parents:
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1329 if name in self.nameids:
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bcclaywell
parents:
diff changeset
1330 self.set_duplicate_name_id(node, id, name, msgnode, explicit)
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parents:
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1331 else:
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parents:
diff changeset
1332 self.nameids[name] = id
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bcclaywell
parents:
diff changeset
1333 self.nametypes[name] = explicit
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parents:
diff changeset
1334
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parents:
diff changeset
1335 def set_duplicate_name_id(self, node, id, name, msgnode, explicit):
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bcclaywell
parents:
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1336 old_id = self.nameids[name]
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parents:
diff changeset
1337 old_explicit = self.nametypes[name]
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bcclaywell
parents:
diff changeset
1338 self.nametypes[name] = old_explicit or explicit
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bcclaywell
parents:
diff changeset
1339 if explicit:
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parents:
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1340 if old_explicit:
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bcclaywell
parents:
diff changeset
1341 level = 2
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parents:
diff changeset
1342 if old_id is not None:
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bcclaywell
parents:
diff changeset
1343 old_node = self.ids[old_id]
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parents:
diff changeset
1344 if 'refuri' in node:
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bcclaywell
parents:
diff changeset
1345 refuri = node['refuri']
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parents:
diff changeset
1346 if old_node['names'] \
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parents:
diff changeset
1347 and 'refuri' in old_node \
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bcclaywell
parents:
diff changeset
1348 and old_node['refuri'] == refuri:
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bcclaywell
parents:
diff changeset
1349 level = 1 # just inform if refuri's identical
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bcclaywell
parents:
diff changeset
1350 if level > 1:
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parents:
diff changeset
1351 dupname(old_node, name)
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bcclaywell
parents:
diff changeset
1352 self.nameids[name] = None
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parents:
diff changeset
1353 msg = self.reporter.system_message(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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1354 level, 'Duplicate explicit target name: "%s".' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1355 backrefs=[id], base_node=node)
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parents:
diff changeset
1356 if msgnode != None:
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parents:
diff changeset
1357 msgnode += msg
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bcclaywell
parents:
diff changeset
1358 dupname(node, name)
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bcclaywell
parents:
diff changeset
1359 else:
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bcclaywell
parents:
diff changeset
1360 self.nameids[name] = id
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bcclaywell
parents:
diff changeset
1361 if old_id is not None:
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bcclaywell
parents:
diff changeset
1362 old_node = self.ids[old_id]
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bcclaywell
parents:
diff changeset
1363 dupname(old_node, name)
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parents:
diff changeset
1364 else:
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parents:
diff changeset
1365 if old_id is not None and not old_explicit:
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bcclaywell
parents:
diff changeset
1366 self.nameids[name] = None
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bcclaywell
parents:
diff changeset
1367 old_node = self.ids[old_id]
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bcclaywell
parents:
diff changeset
1368 dupname(old_node, name)
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bcclaywell
parents:
diff changeset
1369 dupname(node, name)
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bcclaywell
parents:
diff changeset
1370 if not explicit or (not old_explicit and old_id is not None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1371 msg = self.reporter.info(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1372 'Duplicate implicit target name: "%s".' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1373 backrefs=[id], base_node=node)
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parents:
diff changeset
1374 if msgnode != None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1375 msgnode += msg
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bcclaywell
parents:
diff changeset
1376
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bcclaywell
parents:
diff changeset
1377 def has_name(self, name):
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bcclaywell
parents:
diff changeset
1378 return name in self.nameids
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bcclaywell
parents:
diff changeset
1379
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bcclaywell
parents:
diff changeset
1380 # "note" here is an imperative verb: "take note of".
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parents:
diff changeset
1381 def note_implicit_target(self, target, msgnode=None):
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bcclaywell
parents:
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1382 id = self.set_id(target, msgnode)
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bcclaywell
parents:
diff changeset
1383 self.set_name_id_map(target, id, msgnode, explicit=None)
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bcclaywell
parents:
diff changeset
1384
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parents:
diff changeset
1385 def note_explicit_target(self, target, msgnode=None):
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bcclaywell
parents:
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1386 id = self.set_id(target, msgnode)
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bcclaywell
parents:
diff changeset
1387 self.set_name_id_map(target, id, msgnode, explicit=True)
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parents:
diff changeset
1388
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parents:
diff changeset
1389 def note_refname(self, node):
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bcclaywell
parents:
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1390 self.refnames.setdefault(node['refname'], []).append(node)
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parents:
diff changeset
1391
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parents:
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1392 def note_refid(self, node):
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bcclaywell
parents:
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1393 self.refids.setdefault(node['refid'], []).append(node)
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parents:
diff changeset
1394
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parents:
diff changeset
1395 def note_indirect_target(self, target):
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bcclaywell
parents:
diff changeset
1396 self.indirect_targets.append(target)
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parents:
diff changeset
1397 if target['names']:
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bcclaywell
parents:
diff changeset
1398 self.note_refname(target)
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parents:
diff changeset
1399
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parents:
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1400 def note_anonymous_target(self, target):
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bcclaywell
parents:
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1401 self.set_id(target)
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parents:
diff changeset
1402
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parents:
diff changeset
1403 def note_autofootnote(self, footnote):
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parents:
diff changeset
1404 self.set_id(footnote)
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parents:
diff changeset
1405 self.autofootnotes.append(footnote)
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diff changeset
1406
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parents:
diff changeset
1407 def note_autofootnote_ref(self, ref):
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bcclaywell
parents:
diff changeset
1408 self.set_id(ref)
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parents:
diff changeset
1409 self.autofootnote_refs.append(ref)
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parents:
diff changeset
1410
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parents:
diff changeset
1411 def note_symbol_footnote(self, footnote):
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bcclaywell
parents:
diff changeset
1412 self.set_id(footnote)
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parents:
diff changeset
1413 self.symbol_footnotes.append(footnote)
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parents:
diff changeset
1414
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parents:
diff changeset
1415 def note_symbol_footnote_ref(self, ref):
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bcclaywell
parents:
diff changeset
1416 self.set_id(ref)
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parents:
diff changeset
1417 self.symbol_footnote_refs.append(ref)
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parents:
diff changeset
1418
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parents:
diff changeset
1419 def note_footnote(self, footnote):
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bcclaywell
parents:
diff changeset
1420 self.set_id(footnote)
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parents:
diff changeset
1421 self.footnotes.append(footnote)
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diff changeset
1422
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parents:
diff changeset
1423 def note_footnote_ref(self, ref):
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bcclaywell
parents:
diff changeset
1424 self.set_id(ref)
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parents:
diff changeset
1425 self.footnote_refs.setdefault(ref['refname'], []).append(ref)
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parents:
diff changeset
1426 self.note_refname(ref)
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diff changeset
1427
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diff changeset
1428 def note_citation(self, citation):
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parents:
diff changeset
1429 self.citations.append(citation)
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diff changeset
1430
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parents:
diff changeset
1431 def note_citation_ref(self, ref):
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parents:
diff changeset
1432 self.set_id(ref)
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parents:
diff changeset
1433 self.citation_refs.setdefault(ref['refname'], []).append(ref)
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parents:
diff changeset
1434 self.note_refname(ref)
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diff changeset
1435
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parents:
diff changeset
1436 def note_substitution_def(self, subdef, def_name, msgnode=None):
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parents:
diff changeset
1437 name = whitespace_normalize_name(def_name)
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parents:
diff changeset
1438 if name in self.substitution_defs:
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parents:
diff changeset
1439 msg = self.reporter.error(
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bcclaywell
parents:
diff changeset
1440 'Duplicate substitution definition name: "%s".' % name,
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parents:
diff changeset
1441 base_node=subdef)
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parents:
diff changeset
1442 if msgnode != None:
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parents:
diff changeset
1443 msgnode += msg
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parents:
diff changeset
1444 oldnode = self.substitution_defs[name]
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bcclaywell
parents:
diff changeset
1445 dupname(oldnode, name)
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bcclaywell
parents:
diff changeset
1446 # keep only the last definition:
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parents:
diff changeset
1447 self.substitution_defs[name] = subdef
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bcclaywell
parents:
diff changeset
1448 # case-insensitive mapping:
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parents:
diff changeset
1449 self.substitution_names[fully_normalize_name(name)] = name
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bcclaywell
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diff changeset
1450
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bcclaywell
parents:
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1451 def note_substitution_ref(self, subref, refname):
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bcclaywell
parents:
diff changeset
1452 subref['refname'] = whitespace_normalize_name(refname)
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bcclaywell
parents:
diff changeset
1453
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bcclaywell
parents:
diff changeset
1454 def note_pending(self, pending, priority=None):
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bcclaywell
parents:
diff changeset
1455 self.transformer.add_pending(pending, priority)
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parents:
diff changeset
1456
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bcclaywell
parents:
diff changeset
1457 def note_parse_message(self, message):
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bcclaywell
parents:
diff changeset
1458 self.parse_messages.append(message)
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parents:
diff changeset
1459
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bcclaywell
parents:
diff changeset
1460 def note_transform_message(self, message):
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bcclaywell
parents:
diff changeset
1461 self.transform_messages.append(message)
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bcclaywell
parents:
diff changeset
1462
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bcclaywell
parents:
diff changeset
1463 def note_source(self, source, offset):
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bcclaywell
parents:
diff changeset
1464 self.current_source = source
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bcclaywell
parents:
diff changeset
1465 if offset is None:
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bcclaywell
parents:
diff changeset
1466 self.current_line = offset
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bcclaywell
parents:
diff changeset
1467 else:
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bcclaywell
parents:
diff changeset
1468 self.current_line = offset + 1
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bcclaywell
parents:
diff changeset
1469
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bcclaywell
parents:
diff changeset
1470 def copy(self):
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bcclaywell
parents:
diff changeset
1471 return self.__class__(self.settings, self.reporter,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1472 **self.attributes)
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diff changeset
1473
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parents:
diff changeset
1474 def get_decoration(self):
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bcclaywell
parents:
diff changeset
1475 if not self.decoration:
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bcclaywell
parents:
diff changeset
1476 self.decoration = decoration()
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bcclaywell
parents:
diff changeset
1477 index = self.first_child_not_matching_class(Titular)
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bcclaywell
parents:
diff changeset
1478 if index is None:
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bcclaywell
parents:
diff changeset
1479 self.append(self.decoration)
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bcclaywell
parents:
diff changeset
1480 else:
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bcclaywell
parents:
diff changeset
1481 self.insert(index, self.decoration)
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bcclaywell
parents:
diff changeset
1482 return self.decoration
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bcclaywell
parents:
diff changeset
1483
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bcclaywell
parents:
diff changeset
1484
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bcclaywell
parents:
diff changeset
1485 # ================
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bcclaywell
parents:
diff changeset
1486 # Title Elements
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bcclaywell
parents:
diff changeset
1487 # ================
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bcclaywell
parents:
diff changeset
1488
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1489 class title(Titular, PreBibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1490 class subtitle(Titular, PreBibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
1491 class rubric(Titular, TextElement): pass
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bcclaywell
parents:
diff changeset
1492
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bcclaywell
parents:
diff changeset
1493
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bcclaywell
parents:
diff changeset
1494 # ========================
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bcclaywell
parents:
diff changeset
1495 # Bibliographic Elements
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bcclaywell
parents:
diff changeset
1496 # ========================
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bcclaywell
parents:
diff changeset
1497
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1498 class docinfo(Bibliographic, Element): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1499 class author(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1500 class authors(Bibliographic, Element): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1501 class organization(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1502 class address(Bibliographic, FixedTextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1503 class contact(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1504 class version(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1505 class revision(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1506 class status(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1507 class date(Bibliographic, TextElement): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1508 class copyright(Bibliographic, TextElement): pass
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bcclaywell
parents:
diff changeset
1509
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bcclaywell
parents:
diff changeset
1510
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1511 # =====================
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bcclaywell
parents:
diff changeset
1512 # Decorative Elements
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1513 # =====================
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1514
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1515 class decoration(Decorative, Element):
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bcclaywell
parents:
diff changeset
1516
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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1517 def get_header(self):
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bcclaywell
parents:
diff changeset
1518 if not len(self.children) or not isinstance(self.children[0], header):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1519 self.insert(0, header())
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1520 return self.children[0]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1521
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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1522 def get_footer(self):
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bcclaywell
parents:
diff changeset
1523 if not len(self.children) or not isinstance(self.children[-1], footer):
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bcclaywell
parents:
diff changeset
1524 self.append(footer())
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1525 return self.children[-1]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1526
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1527
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1528 class header(Decorative, Element): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
1529 class footer(Decorative, Element): pass
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parents:
diff changeset
1530
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parents:
diff changeset
1531
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parents:
diff changeset
1532 # =====================
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parents:
diff changeset
1533 # Structural Elements
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parents:
diff changeset
1534 # =====================
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parents:
diff changeset
1535
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parents:
diff changeset
1536 class section(Structural, Element): pass
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parents:
diff changeset
1537
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parents:
diff changeset
1538
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parents:
diff changeset
1539 class topic(Structural, Element):
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parents:
diff changeset
1540
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parents:
diff changeset
1541 """
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parents:
diff changeset
1542 Topics are terminal, "leaf" mini-sections, like block quotes with titles,
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parents:
diff changeset
1543 or textual figures. A topic is just like a section, except that it has no
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parents:
diff changeset
1544 subsections, and it doesn't have to conform to section placement rules.
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parents:
diff changeset
1545
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parents:
diff changeset
1546 Topics are allowed wherever body elements (list, table, etc.) are allowed,
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parents:
diff changeset
1547 but only at the top level of a section or document. Topics cannot nest
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parents:
diff changeset
1548 inside topics, sidebars, or body elements; you can't have a topic inside a
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parents:
diff changeset
1549 table, list, block quote, etc.
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parents:
diff changeset
1550 """
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parents:
diff changeset
1551
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parents:
diff changeset
1552
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parents:
diff changeset
1553 class sidebar(Structural, Element):
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diff changeset
1554
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parents:
diff changeset
1555 """
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parents:
diff changeset
1556 Sidebars are like miniature, parallel documents that occur inside other
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parents:
diff changeset
1557 documents, providing related or reference material. A sidebar is
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parents:
diff changeset
1558 typically offset by a border and "floats" to the side of the page; the
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diff changeset
1559 document's main text may flow around it. Sidebars can also be likened to
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diff changeset
1560 super-footnotes; their content is outside of the flow of the document's
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parents:
diff changeset
1561 main text.
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parents:
diff changeset
1562
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parents:
diff changeset
1563 Sidebars are allowed wherever body elements (list, table, etc.) are
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diff changeset
1564 allowed, but only at the top level of a section or document. Sidebars
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diff changeset
1565 cannot nest inside sidebars, topics, or body elements; you can't have a
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diff changeset
1566 sidebar inside a table, list, block quote, etc.
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diff changeset
1567 """
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parents:
diff changeset
1568
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parents:
diff changeset
1569
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diff changeset
1570 class transition(Structural, Element): pass
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diff changeset
1571
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parents:
diff changeset
1572
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parents:
diff changeset
1573 # ===============
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parents:
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1574 # Body Elements
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parents:
diff changeset
1575 # ===============
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1576
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1577 class paragraph(General, TextElement): pass
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1578 class compound(General, Element): pass
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1579 class container(General, Element): pass
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1580 class bullet_list(Sequential, Element): pass
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1581 class enumerated_list(Sequential, Element): pass
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1582 class list_item(Part, Element): pass
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1583 class definition_list(Sequential, Element): pass
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1584 class definition_list_item(Part, Element): pass
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1585 class term(Part, TextElement): pass
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1586 class classifier(Part, TextElement): pass
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1587 class definition(Part, Element): pass
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1588 class field_list(Sequential, Element): pass
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1589 class field(Part, Element): pass
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1590 class field_name(Part, TextElement): pass
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1591 class field_body(Part, Element): pass
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1592
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1593
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1594 class option(Part, Element):
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1595
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1596 child_text_separator = ''
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parents:
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1597
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parents:
diff changeset
1598
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1599 class option_argument(Part, TextElement):
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1600
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1601 def astext(self):
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1602 return self.get('delimiter', ' ') + TextElement.astext(self)
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1603
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diff changeset
1604
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1605 class option_group(Part, Element):
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1606
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1607 child_text_separator = ', '
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1608
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1609
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1610 class option_list(Sequential, Element): pass
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1611
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1612
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1613 class option_list_item(Part, Element):
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diff changeset
1614
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diff changeset
1615 child_text_separator = ' '
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1616
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1617
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1618 class option_string(Part, TextElement): pass
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1619 class description(Part, Element): pass
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1620 class literal_block(General, FixedTextElement): pass
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1621 class doctest_block(General, FixedTextElement): pass
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diff changeset
1622 class math_block(General, FixedTextElement): pass
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1623 class line_block(General, Element): pass
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1624
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1625
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1626 class line(Part, TextElement):
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1627
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1628 indent = None
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1629
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1630
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1631 class block_quote(General, Element): pass
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1632 class attribution(Part, TextElement): pass
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1633 class attention(Admonition, Element): pass
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1634 class caution(Admonition, Element): pass
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1635 class danger(Admonition, Element): pass
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1636 class error(Admonition, Element): pass
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1637 class important(Admonition, Element): pass
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1638 class note(Admonition, Element): pass
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1639 class tip(Admonition, Element): pass
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1640 class hint(Admonition, Element): pass
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1641 class warning(Admonition, Element): pass
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1642 class admonition(Admonition, Element): pass
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1643 class comment(Special, Invisible, FixedTextElement): pass
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1644 class substitution_definition(Special, Invisible, TextElement): pass
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1645 class target(Special, Invisible, Inline, TextElement, Targetable): pass
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1646 class footnote(General, BackLinkable, Element, Labeled, Targetable): pass
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1647 class citation(General, BackLinkable, Element, Labeled, Targetable): pass
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1648 class label(Part, TextElement): pass
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1649 class figure(General, Element): pass
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1650 class caption(Part, TextElement): pass
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1651 class legend(Part, Element): pass
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1652 class table(General, Element): pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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1653 class tgroup(Part, Element): pass
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1654 class colspec(Part, Element): pass
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1655 class thead(Part, Element): pass
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diff changeset
1656 class tbody(Part, Element): pass
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1657 class row(Part, Element): pass
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1658 class entry(Part, Element): pass
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1659
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1660
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1661 class system_message(Special, BackLinkable, PreBibliographic, Element):
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1662
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1663 """
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1664 System message element.
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1665
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1666 Do not instantiate this class directly; use
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1667 ``document.reporter.info/warning/error/severe()`` instead.
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1668 """
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1669
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1670 def __init__(self, message=None, *children, **attributes):
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1671 if message:
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1672 p = paragraph('', message)
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1673 children = (p,) + children
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1674 try:
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1675 Element.__init__(self, '', *children, **attributes)
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1676 except:
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1677 print 'system_message: children=%r' % (children,)
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1678 raise
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1679
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1680 def astext(self):
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1681 line = self.get('line', '')
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1682 return u'%s:%s: (%s/%s) %s' % (self['source'], line, self['type'],
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1683 self['level'], Element.astext(self))
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1684
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1685
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1686 class pending(Special, Invisible, Element):
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1687
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1688 """
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1689 The "pending" element is used to encapsulate a pending operation: the
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1690 operation (transform), the point at which to apply it, and any data it
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1691 requires. Only the pending operation's location within the document is
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1692 stored in the public document tree (by the "pending" object itself); the
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1693 operation and its data are stored in the "pending" object's internal
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1694 instance attributes.
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1695
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1696 For example, say you want a table of contents in your reStructuredText
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1697 document. The easiest way to specify where to put it is from within the
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1698 document, with a directive::
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1699
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1700 .. contents::
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1701
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1702 But the "contents" directive can't do its work until the entire document
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1703 has been parsed and possibly transformed to some extent. So the directive
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1704 code leaves a placeholder behind that will trigger the second phase of its
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1705 processing, something like this::
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1706
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1707 <pending ...public attributes...> + internal attributes
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1708
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1709 Use `document.note_pending()` so that the
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1710 `docutils.transforms.Transformer` stage of processing can run all pending
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1711 transforms.
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1712 """
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1713
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1714 def __init__(self, transform, details=None,
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1715 rawsource='', *children, **attributes):
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1716 Element.__init__(self, rawsource, *children, **attributes)
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1717
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1718 self.transform = transform
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1719 """The `docutils.transforms.Transform` class implementing the pending
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1720 operation."""
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1721
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1722 self.details = details or {}
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1723 """Detail data (dictionary) required by the pending operation."""
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1724
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1725 def pformat(self, indent=' ', level=0):
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1726 internals = [
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1727 '.. internal attributes:',
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1728 ' .transform: %s.%s' % (self.transform.__module__,
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1729 self.transform.__name__),
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1730 ' .details:']
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1731 details = self.details.items()
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1732 details.sort()
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1733 for key, value in details:
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1734 if isinstance(value, Node):
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1735 internals.append('%7s%s:' % ('', key))
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1736 internals.extend(['%9s%s' % ('', line)
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1737 for line in value.pformat().splitlines()])
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1738 elif value and isinstance(value, list) \
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1739 and isinstance(value[0], Node):
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1740 internals.append('%7s%s:' % ('', key))
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1741 for v in value:
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1742 internals.extend(['%9s%s' % ('', line)
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1743 for line in v.pformat().splitlines()])
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1744 else:
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1745 internals.append('%7s%s: %r' % ('', key, value))
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1746 return (Element.pformat(self, indent, level)
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1747 + ''.join([(' %s%s\n' % (indent * level, line))
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1748 for line in internals]))
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1749
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1750 def copy(self):
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1751 return self.__class__(self.transform, self.details, self.rawsource,
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1752 **self.attributes)
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1753
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1754
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1755 class raw(Special, Inline, PreBibliographic, FixedTextElement):
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1756
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1757 """
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1758 Raw data that is to be passed untouched to the Writer.
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1759 """
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1760
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1761 pass
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1762
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1763
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1764 # =================
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1765 # Inline Elements
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1766 # =================
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1767
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1768 class emphasis(Inline, TextElement): pass
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1769 class strong(Inline, TextElement): pass
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1770 class literal(Inline, TextElement): pass
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1771 class reference(General, Inline, Referential, TextElement): pass
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1772 class footnote_reference(Inline, Referential, TextElement): pass
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1773 class citation_reference(Inline, Referential, TextElement): pass
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1774 class substitution_reference(Inline, TextElement): pass
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1775 class title_reference(Inline, TextElement): pass
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1776 class abbreviation(Inline, TextElement): pass
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1777 class acronym(Inline, TextElement): pass
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1778 class superscript(Inline, TextElement): pass
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1779 class subscript(Inline, TextElement): pass
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1780 class math(Inline, TextElement): pass
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1781
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1782
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1783 class image(General, Inline, Element):
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1784
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1785 def astext(self):
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1786 return self.get('alt', '')
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1787
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1788
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1789 class inline(Inline, TextElement): pass
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1790 class problematic(Inline, TextElement): pass
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1791 class generated(Inline, TextElement): pass
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1792
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1793
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1794 # ========================================
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1795 # Auxiliary Classes, Functions, and Data
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1796 # ========================================
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1797
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1798 node_class_names = """
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1799 Text
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1800 abbreviation acronym address admonition attention attribution author
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1801 authors
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1802 block_quote bullet_list
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1803 caption caution citation citation_reference classifier colspec comment
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1804 compound contact container copyright
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1805 danger date decoration definition definition_list definition_list_item
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1806 description docinfo doctest_block document
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1807 emphasis entry enumerated_list error
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1808 field field_body field_list field_name figure footer
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1809 footnote footnote_reference
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1810 generated
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1811 header hint
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1812 image important inline
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1813 label legend line line_block list_item literal literal_block
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1814 math math_block
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1815 note
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1816 option option_argument option_group option_list option_list_item
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1817 option_string organization
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1818 paragraph pending problematic
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1819 raw reference revision row rubric
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1820 section sidebar status strong subscript substitution_definition
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1821 substitution_reference subtitle superscript system_message
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1822 table target tbody term tgroup thead tip title title_reference topic
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1823 transition
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1824 version
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1825 warning""".split()
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1826 """A list of names of all concrete Node subclasses."""
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1827
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1828
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1829 class NodeVisitor:
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1830
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1831 """
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1832 "Visitor" pattern [GoF95]_ abstract superclass implementation for
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1833 document tree traversals.
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1834
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1835 Each node class has corresponding methods, doing nothing by
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1836 default; override individual methods for specific and useful
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1837 behaviour. The `dispatch_visit()` method is called by
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1838 `Node.walk()` upon entering a node. `Node.walkabout()` also calls
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1839 the `dispatch_departure()` method before exiting a node.
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1840
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1841 The dispatch methods call "``visit_`` + node class name" or
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1842 "``depart_`` + node class name", resp.
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1843
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1844 This is a base class for visitors whose ``visit_...`` & ``depart_...``
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1845 methods should be implemented for *all* node types encountered (such as
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1846 for `docutils.writers.Writer` subclasses). Unimplemented methods will
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1847 raise exceptions.
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1848
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1849 For sparse traversals, where only certain node types are of interest,
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1850 subclass `SparseNodeVisitor` instead. When (mostly or entirely) uniform
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1851 processing is desired, subclass `GenericNodeVisitor`.
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1852
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1853 .. [GoF95] Gamma, Helm, Johnson, Vlissides. *Design Patterns: Elements of
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1854 Reusable Object-Oriented Software*. Addison-Wesley, Reading, MA, USA,
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1855 1995.
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1856 """
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1857
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1858 optional = ()
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1859 """
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1860 Tuple containing node class names (as strings).
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1861
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1862 No exception will be raised if writers do not implement visit
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1863 or departure functions for these node classes.
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1864
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1865 Used to ensure transitional compatibility with existing 3rd-party writers.
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1866 """
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1867
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1868 def __init__(self, document):
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1869 self.document = document
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1870
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1871 def dispatch_visit(self, node):
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1872 """
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1873 Call self."``visit_`` + node class name" with `node` as
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1874 parameter. If the ``visit_...`` method does not exist, call
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1875 self.unknown_visit.
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1876 """
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1877 node_name = node.__class__.__name__
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1878 method = getattr(self, 'visit_' + node_name, self.unknown_visit)
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1879 self.document.reporter.debug(
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1880 'docutils.nodes.NodeVisitor.dispatch_visit calling %s for %s'
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1881 % (method.__name__, node_name))
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1882 return method(node)
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1883
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1884 def dispatch_departure(self, node):
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1885 """
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1886 Call self."``depart_`` + node class name" with `node` as
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1887 parameter. If the ``depart_...`` method does not exist, call
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1888 self.unknown_departure.
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1889 """
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1890 node_name = node.__class__.__name__
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1891 method = getattr(self, 'depart_' + node_name, self.unknown_departure)
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1892 self.document.reporter.debug(
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1893 'docutils.nodes.NodeVisitor.dispatch_departure calling %s for %s'
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1894 % (method.__name__, node_name))
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1895 return method(node)
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1896
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1897 def unknown_visit(self, node):
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1898 """
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1899 Called when entering unknown `Node` types.
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1900
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1901 Raise an exception unless overridden.
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1902 """
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1903 if (self.document.settings.strict_visitor
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1904 or node.__class__.__name__ not in self.optional):
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1905 raise NotImplementedError(
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1906 '%s visiting unknown node type: %s'
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1907 % (self.__class__, node.__class__.__name__))
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1908
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1909 def unknown_departure(self, node):
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1910 """
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1911 Called before exiting unknown `Node` types.
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1912
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1913 Raise exception unless overridden.
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1914 """
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1915 if (self.document.settings.strict_visitor
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1916 or node.__class__.__name__ not in self.optional):
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1917 raise NotImplementedError(
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1918 '%s departing unknown node type: %s'
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1919 % (self.__class__, node.__class__.__name__))
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1920
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1921
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1922 class SparseNodeVisitor(NodeVisitor):
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1923
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1924 """
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1925 Base class for sparse traversals, where only certain node types are of
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1926 interest. When ``visit_...`` & ``depart_...`` methods should be
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1927 implemented for *all* node types (such as for `docutils.writers.Writer`
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1928 subclasses), subclass `NodeVisitor` instead.
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1929 """
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1930
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1931
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1932 class GenericNodeVisitor(NodeVisitor):
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1933
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1934 """
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1935 Generic "Visitor" abstract superclass, for simple traversals.
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1936
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1937 Unless overridden, each ``visit_...`` method calls `default_visit()`, and
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1938 each ``depart_...`` method (when using `Node.walkabout()`) calls
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1939 `default_departure()`. `default_visit()` (and `default_departure()`) must
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1940 be overridden in subclasses.
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1941
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1942 Define fully generic visitors by overriding `default_visit()` (and
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1943 `default_departure()`) only. Define semi-generic visitors by overriding
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1944 individual ``visit_...()`` (and ``depart_...()``) methods also.
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1945
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1946 `NodeVisitor.unknown_visit()` (`NodeVisitor.unknown_departure()`) should
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1947 be overridden for default behavior.
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1948 """
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1949
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1950 def default_visit(self, node):
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1951 """Override for generic, uniform traversals."""
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1952 raise NotImplementedError
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1953
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1954 def default_departure(self, node):
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1955 """Override for generic, uniform traversals."""
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1956 raise NotImplementedError
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1957
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1958 def _call_default_visit(self, node):
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1959 self.default_visit(node)
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1960
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1961 def _call_default_departure(self, node):
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1962 self.default_departure(node)
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1963
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1964 def _nop(self, node):
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1965 pass
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1966
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1967 def _add_node_class_names(names):
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1968 """Save typing with dynamic assignments:"""
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1969 for _name in names:
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1970 setattr(GenericNodeVisitor, "visit_" + _name, _call_default_visit)
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1971 setattr(GenericNodeVisitor, "depart_" + _name, _call_default_departure)
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1972 setattr(SparseNodeVisitor, 'visit_' + _name, _nop)
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1973 setattr(SparseNodeVisitor, 'depart_' + _name, _nop)
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1974
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1975 _add_node_class_names(node_class_names)
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1976
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1977
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1978 class TreeCopyVisitor(GenericNodeVisitor):
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1979
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1980 """
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1981 Make a complete copy of a tree or branch, including element attributes.
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1982 """
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1983
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1984 def __init__(self, document):
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1985 GenericNodeVisitor.__init__(self, document)
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1986 self.parent_stack = []
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1987 self.parent = []
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1988
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1989 def get_tree_copy(self):
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1990 return self.parent[0]
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1991
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1992 def default_visit(self, node):
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1993 """Copy the current node, and make it the new acting parent."""
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1994 newnode = node.copy()
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1995 self.parent.append(newnode)
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1996 self.parent_stack.append(self.parent)
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1997 self.parent = newnode
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1998
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1999 def default_departure(self, node):
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2000 """Restore the previous acting parent."""
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2001 self.parent = self.parent_stack.pop()
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2002
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2003
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2004 class TreePruningException(Exception):
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2005
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2006 """
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2007 Base class for `NodeVisitor`-related tree pruning exceptions.
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2008
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2009 Raise subclasses from within ``visit_...`` or ``depart_...`` methods
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2010 called from `Node.walk()` and `Node.walkabout()` tree traversals to prune
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2011 the tree traversed.
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2012 """
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2013
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2014 pass
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2015
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2016
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2017 class SkipChildren(TreePruningException):
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2018
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2019 """
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2020 Do not visit any children of the current node. The current node's
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2021 siblings and ``depart_...`` method are not affected.
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2022 """
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2023
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2024 pass
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2025
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2026
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2027 class SkipSiblings(TreePruningException):
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2028
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2029 """
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2030 Do not visit any more siblings (to the right) of the current node. The
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2031 current node's children and its ``depart_...`` method are not affected.
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2032 """
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2033
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2034 pass
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2035
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2036
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2037 class SkipNode(TreePruningException):
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2038
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parents:
diff changeset
2039 """
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bcclaywell
parents:
diff changeset
2040 Do not visit the current node's children, and do not call the current
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2041 node's ``depart_...`` method.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2042 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2043
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2044 pass
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bcclaywell
parents:
diff changeset
2045
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bcclaywell
parents:
diff changeset
2046
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2047 class SkipDeparture(TreePruningException):
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bcclaywell
parents:
diff changeset
2048
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bcclaywell
parents:
diff changeset
2049 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2050 Do not call the current node's ``depart_...`` method. The current node's
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2051 children and siblings are not affected.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2052 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2053
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2054 pass
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bcclaywell
parents:
diff changeset
2055
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2056
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2057 class NodeFound(TreePruningException):
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bcclaywell
parents:
diff changeset
2058
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bcclaywell
parents:
diff changeset
2059 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2060 Raise to indicate that the target of a search has been found. This
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2061 exception must be caught by the client; it is not caught by the traversal
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2062 code.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2063 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2064
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bcclaywell
parents:
diff changeset
2065 pass
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bcclaywell
parents:
diff changeset
2066
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bcclaywell
parents:
diff changeset
2067
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2068 class StopTraversal(TreePruningException):
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bcclaywell
parents:
diff changeset
2069
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bcclaywell
parents:
diff changeset
2070 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2071 Stop the traversal alltogether. The current node's ``depart_...`` method
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2072 is not affected. The parent nodes ``depart_...`` methods are also called
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2073 as usual. No other nodes are visited. This is an alternative to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2074 NodeFound that does not cause exception handling to trickle up to the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2075 caller.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2076 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2077
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2078 pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2079
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2080
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bcclaywell
parents:
diff changeset
2081 def make_id(string):
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bcclaywell
parents:
diff changeset
2082 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2083 Convert `string` into an identifier and return it.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2084
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bcclaywell
parents:
diff changeset
2085 Docutils identifiers will conform to the regular expression
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2086 ``[a-z](-?[a-z0-9]+)*``. For CSS compatibility, identifiers (the "class"
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2087 and "id" attributes) should have no underscores, colons, or periods.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2088 Hyphens may be used.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2089
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2090 - The `HTML 4.01 spec`_ defines identifiers based on SGML tokens:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2091
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2092 ID and NAME tokens must begin with a letter ([A-Za-z]) and may be
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2093 followed by any number of letters, digits ([0-9]), hyphens ("-"),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2094 underscores ("_"), colons (":"), and periods (".").
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bcclaywell
parents:
diff changeset
2095
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2096 - However the `CSS1 spec`_ defines identifiers based on the "name" token,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2097 a tighter interpretation ("flex" tokenizer notation; "latin1" and
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2098 "escape" 8-bit characters have been replaced with entities)::
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2099
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2100 unicode \\[0-9a-f]{1,4}
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2101 latin1 [&iexcl;-&yuml;]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2102 escape {unicode}|\\[ -~&iexcl;-&yuml;]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2103 nmchar [-a-z0-9]|{latin1}|{escape}
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bcclaywell
parents:
diff changeset
2104 name {nmchar}+
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2105
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2106 The CSS1 "nmchar" rule does not include underscores ("_"), colons (":"),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2107 or periods ("."), therefore "class" and "id" attributes should not contain
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2108 these characters. They should be replaced with hyphens ("-"). Combined
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2109 with HTML's requirements (the first character must be a letter; no
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2110 "unicode", "latin1", or "escape" characters), this results in the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2111 ``[a-z](-?[a-z0-9]+)*`` pattern.
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bcclaywell
parents:
diff changeset
2112
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2113 .. _HTML 4.01 spec: http://www.w3.org/TR/html401
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2114 .. _CSS1 spec: http://www.w3.org/TR/REC-CSS1
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bcclaywell
parents:
diff changeset
2115 """
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bcclaywell
parents:
diff changeset
2116 id = string.lower()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2117 if not isinstance(id, unicode):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2118 id = id.decode()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2119 id = id.translate(_non_id_translate_digraphs)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2120 id = id.translate(_non_id_translate)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2121 # get rid of non-ascii characters.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2122 # 'ascii' lowercase to prevent problems with turkish locale.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2123 id = unicodedata.normalize('NFKD', id).\
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2124 encode('ascii', 'ignore').decode('ascii')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2125 # shrink runs of whitespace and replace by hyphen
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2126 id = _non_id_chars.sub('-', ' '.join(id.split()))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2127 id = _non_id_at_ends.sub('', id)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2128 return str(id)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2129
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2130 _non_id_chars = re.compile('[^a-z0-9]+')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2131 _non_id_at_ends = re.compile('^[-0-9]+|-+$')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2132 _non_id_translate = {
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2133 0x00f8: u'o', # o with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2134 0x0111: u'd', # d with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2135 0x0127: u'h', # h with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2136 0x0131: u'i', # dotless i
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2137 0x0142: u'l', # l with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2138 0x0167: u't', # t with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2139 0x0180: u'b', # b with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2140 0x0183: u'b', # b with topbar
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2141 0x0188: u'c', # c with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2142 0x018c: u'd', # d with topbar
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2143 0x0192: u'f', # f with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2144 0x0199: u'k', # k with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2145 0x019a: u'l', # l with bar
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2146 0x019e: u'n', # n with long right leg
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2147 0x01a5: u'p', # p with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2148 0x01ab: u't', # t with palatal hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2149 0x01ad: u't', # t with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2150 0x01b4: u'y', # y with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2151 0x01b6: u'z', # z with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2152 0x01e5: u'g', # g with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2153 0x0225: u'z', # z with hook
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2154 0x0234: u'l', # l with curl
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2155 0x0235: u'n', # n with curl
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2156 0x0236: u't', # t with curl
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2157 0x0237: u'j', # dotless j
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2158 0x023c: u'c', # c with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2159 0x023f: u's', # s with swash tail
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2160 0x0240: u'z', # z with swash tail
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2161 0x0247: u'e', # e with stroke
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bcclaywell
parents:
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2162 0x0249: u'j', # j with stroke
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bcclaywell
parents:
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2163 0x024b: u'q', # q with hook tail
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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2164 0x024d: u'r', # r with stroke
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2165 0x024f: u'y', # y with stroke
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parents:
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2166 }
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bcclaywell
parents:
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2167 _non_id_translate_digraphs = {
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bcclaywell
parents:
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2168 0x00df: u'sz', # ligature sz
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bcclaywell
parents:
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2169 0x00e6: u'ae', # ae
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bcclaywell
parents:
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2170 0x0153: u'oe', # ligature oe
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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2171 0x0238: u'db', # db digraph
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
2172 0x0239: u'qp', # qp digraph
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bcclaywell
parents:
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2173 }
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bcclaywell
parents:
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2174
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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2175 def dupname(node, name):
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bcclaywell
parents:
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2176 node['dupnames'].append(name)
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parents:
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2177 node['names'].remove(name)
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parents:
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2178 # Assume that this method is referenced, even though it isn't; we
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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2179 # don't want to throw unnecessary system_messages.
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2180 node.referenced = 1
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2181
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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2182 def fully_normalize_name(name):
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2183 """Return a case- and whitespace-normalized name."""
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2184 return ' '.join(name.lower().split())
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bcclaywell
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2185
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2186 def whitespace_normalize_name(name):
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2187 """Return a whitespace-normalized name."""
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2188 return ' '.join(name.split())
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2189
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2190 def serial_escape(value):
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2191 """Escape string values that are elements of a list, for serialization."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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2192 return value.replace('\\', r'\\').replace(' ', r'\ ')
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bcclaywell
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2193
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2194 def pseudo_quoteattr(value):
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2195 """Quote attributes for pseudo-xml"""
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2196 return '"%s"' % value
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2197
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2198 #
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2199 #
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2200 # Local Variables:
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2201 # indent-tabs-mode: nil
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bcclaywell
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2202 # sentence-end-double-space: t
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2203 # fill-column: 78
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2204 # End: