♻️ Update sim structure
This commit is contained in:
Rune Harlyk
@@ -0,0 +1,638 @@
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#! /usr/bin/env python
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# Copyright (c) 2008, Willow Garage, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the Willow Garage, Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# Author: Stuart Glaser
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# Modified by Saul Reynolds-Haertle Oct 14 2012 to remove ROS dependencies.
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import os.path
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import sys
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import os
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import getopt
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import subprocess
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from xml.dom.minidom import parse, parseString
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import xml.dom
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import re
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import string
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class XacroException(Exception):
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pass
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def isnumber(x):
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return hasattr(x, '__int__')
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# Better pretty printing of xml
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# Taken from http://ronrothman.com/public/leftbraned/xml-dom-minidom-toprettyxml-and-silly-whitespace/
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def fixed_writexml(self, writer, indent="", addindent="", newl=""):
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# indent = current indentation
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# addindent = indentation to add to higher levels
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# newl = newline string
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writer.write(indent+"<" + self.tagName)
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attrs = self._get_attributes()
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a_names = attrs.keys()
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# a_names.sort()
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sorted(a_names)
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for a_name in a_names:
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writer.write(" %s=\"" % a_name)
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xml.dom.minidom._write_data(writer, attrs[a_name].value)
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writer.write("\"")
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if self.childNodes:
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if len(self.childNodes) == 1 \
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and self.childNodes[0].nodeType == xml.dom.minidom.Node.TEXT_NODE:
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writer.write(">")
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self.childNodes[0].writexml(writer, "", "", "")
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writer.write("</%s>%s" % (self.tagName, newl))
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return
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writer.write(">%s" % (newl))
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for node in self.childNodes:
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if node.nodeType is not xml.dom.minidom.Node.TEXT_NODE: # 3:
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node.writexml(writer, indent+addindent, addindent, newl)
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# node.writexml(writer,indent+addindent,addindent,newl)
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writer.write("%s</%s>%s" % (indent, self.tagName, newl))
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else:
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writer.write("/>%s" % (newl))
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# replace minidom's function with ours
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xml.dom.minidom.Element.writexml = fixed_writexml
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class Table:
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def __init__(self, parent=None):
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self.parent = parent
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self.table = {}
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def __getitem__(self, key):
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if key in self.table:
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return self.table[key]
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elif self.parent:
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return self.parent[key]
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else:
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raise KeyError(key)
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def __setitem__(self, key, value):
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self.table[key] = value
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def __contains__(self, key):
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return \
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key in self.table or \
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(self.parent and key in self.parent)
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class QuickLexer(object):
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def __init__(self, **res):
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self.str = ""
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self.top = None
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self.res = []
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for k, v in res.items():
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self.__setattr__(k, len(self.res))
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self.res.append(v)
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def lex(self, str):
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self.str = str
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self.top = None
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self.next()
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def peek(self):
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return self.top
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def next(self):
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result = self.top
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self.top = None
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for i in range(len(self.res)):
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m = re.match(self.res[i], self.str)
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if m:
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self.top = (i, m.group(0))
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self.str = self.str[m.end():]
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break
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return result
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def first_child_element(elt):
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c = elt.firstChild
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while c:
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if c.nodeType == xml.dom.Node.ELEMENT_NODE:
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return c
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c = c.nextSibling
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return None
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def next_sibling_element(elt):
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c = elt.nextSibling
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while c:
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if c.nodeType == xml.dom.Node.ELEMENT_NODE:
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return c
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c = c.nextSibling
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return None
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# Pre-order traversal of the elements
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def next_element(elt):
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child = first_child_element(elt)
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if child:
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return child
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while elt and elt.nodeType == xml.dom.Node.ELEMENT_NODE:
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next = next_sibling_element(elt)
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if next:
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return next
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elt = elt.parentNode
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return None
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# Pre-order traversal of all the nodes
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def next_node(node):
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if node.firstChild:
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return node.firstChild
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while node:
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if node.nextSibling:
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return node.nextSibling
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node = node.parentNode
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return None
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def child_elements(elt):
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c = elt.firstChild
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while c:
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if c.nodeType == xml.dom.Node.ELEMENT_NODE:
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yield c
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c = c.nextSibling
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all_includes = []
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# @throws XacroException if a parsing error occurs with an included document
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def process_includes(doc, base_dir):
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namespaces = {}
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previous = doc.documentElement
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elt = next_element(previous)
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while elt:
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if elt.tagName == 'include' or elt.tagName == 'xacro:include':
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# print("elt.getAttribute('filename'):", elt.getAttribute('filename'))
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filename = eval_text(elt.getAttribute('filename'), {})
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# print("filename:",filename)
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if not os.path.isabs(filename):
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filename = os.path.join(base_dir, filename)
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f = None
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try:
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try:
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f = open(filename)
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except IOError as e:
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print(elt)
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raise XacroException(
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"included file \"%s\" could not be opened: %s" % (filename, str(e)))
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try:
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global all_includes
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all_includes.append(filename)
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included = parse(f)
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except Exception as e:
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raise XacroException(
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"included file [%s] generated an error during XML parsing: %s" % (filename, str(e)))
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finally:
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if f:
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f.close()
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# Replaces the include tag with the elements of the included file
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for c in child_elements(included.documentElement):
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elt.parentNode.insertBefore(c.cloneNode(1), elt)
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elt.parentNode.removeChild(elt)
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elt = None
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# Grabs all the declared namespaces of the included document
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for name, value in included.documentElement.attributes.items():
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if name.startswith('xmlns:'):
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namespaces[name] = value
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else:
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previous = elt
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elt = next_element(previous)
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# Makes sure the final document declares all the namespaces of the included documents.
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for k, v in namespaces.items():
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doc.documentElement.setAttribute(k, v)
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# Returns a dictionary: { macro_name => macro_xml_block }
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def grab_macros(doc):
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macros = {}
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previous = doc.documentElement
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elt = next_element(previous)
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while elt:
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if elt.tagName == 'macro' or elt.tagName == 'xacro:macro':
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name = elt.getAttribute('name')
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macros[name] = elt
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macros['xacro:' + name] = elt
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elt.parentNode.removeChild(elt)
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elt = None
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else:
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previous = elt
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elt = next_element(previous)
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return macros
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# Returns a Table of the properties
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def grab_properties(doc):
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table = Table()
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previous = doc.documentElement
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elt = next_element(previous)
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while elt:
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if elt.tagName == 'property' or elt.tagName == 'xacro:property':
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name = elt.getAttribute('name')
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value = None
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if elt.hasAttribute('value'):
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value = elt.getAttribute('value')
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else:
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name = '**' + name
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value = elt # debug
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bad = string.whitespace + "${}"
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has_bad = False
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for b in bad:
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if b in name:
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has_bad = True
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break
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if has_bad:
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sys.stderr.write('Property names may not have whitespace, ' +
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'"{", "}", or "$" : "' + name + '"')
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else:
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table[name] = value
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elt.parentNode.removeChild(elt)
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elt = None
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else:
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previous = elt
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elt = next_element(previous)
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return table
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def eat_ignore(lex):
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while lex.peek() and lex.peek()[0] == lex.IGNORE:
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lex.next()
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def eval_lit(lex, symbols):
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eat_ignore(lex)
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if lex.peek()[0] == lex.NUMBER:
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return float(lex.next()[1])
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if lex.peek()[0] == lex.SYMBOL:
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try:
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value = symbols[lex.next()[1]]
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except KeyError as ex:
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# sys.stderr.write("Could not find symbol: %s\n" % str(ex))
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raise XacroException("Property wasn't defined: %s" % str(ex))
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if not (isnumber(value) or isinstance(value, (str, str))):
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print([value], isinstance(value, str), type(value))
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raise XacroException("WTF2")
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try:
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return int(value)
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except:
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try:
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return float(value)
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except:
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return value
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raise XacroException("Bad literal")
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def eval_factor(lex, symbols):
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eat_ignore(lex)
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neg = 1
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if lex.peek()[1] == '-':
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lex.next()
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neg = -1
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if lex.peek()[0] in [lex.NUMBER, lex.SYMBOL]:
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return neg * eval_lit(lex, symbols)
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if lex.peek()[0] == lex.LPAREN:
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lex.next()
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eat_ignore(lex)
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result = eval_expr(lex, symbols)
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eat_ignore(lex)
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if lex.next()[0] != lex.RPAREN:
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raise XacroException("Unmatched left paren")
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eat_ignore(lex)
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return neg * result
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raise XacroException("Misplaced operator")
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def eval_term(lex, symbols):
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eat_ignore(lex)
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result = 0
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if lex.peek()[0] in [lex.NUMBER, lex.SYMBOL, lex.LPAREN] \
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or lex.peek()[1] == '-':
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result = eval_factor(lex, symbols)
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eat_ignore(lex)
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while lex.peek() and lex.peek()[1] in ['*', '/']:
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op = lex.next()[1]
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n = eval_factor(lex, symbols)
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if op == '*':
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result = float(result) * float(n)
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elif op == '/':
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result = float(result) / float(n)
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else:
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raise XacroException("WTF")
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eat_ignore(lex)
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return result
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def eval_expr(lex, symbols):
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eat_ignore(lex)
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op = None
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if lex.peek()[0] == lex.OP:
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op = lex.next()[1]
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if not op in ['+', '-']:
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raise XacroException("Invalid operation. Must be '+' or '-'")
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result = eval_term(lex, symbols)
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if op == '-':
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result = -float(result)
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eat_ignore(lex)
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while lex.peek() and lex.peek()[1] in ['+', '-']:
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op = lex.next()[1]
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n = eval_term(lex, symbols)
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if op == '+':
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result = float(result) + float(n)
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if op == '-':
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result = float(result) - float(n)
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eat_ignore(lex)
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return result
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def eval_extension(s):
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# if s == '$(cwd)':
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return os.getcwd()
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# try:
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# return substitution_args.resolve_args(s, context=substitution_args_context, resolve_anon=False)
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# except substitution_args.ArgException as e:
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# raise XacroException("Undefined substitution argument", exc=e)
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# except ResourceNotFound as e:
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# raise XacroException("resource not found:", exc=e)
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def eval_text(text, symbols):
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def handle_expr(s):
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lex = QuickLexer(IGNORE=r"\s+",
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NUMBER=r"(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?",
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SYMBOL=r"[a-zA-Z_]\w*",
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OP=r"[\+\-\*/^]",
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LPAREN=r"\(",
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RPAREN=r"\)")
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lex.lex(s)
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return eval_expr(lex, symbols)
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def handle_extension(s):
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# print("handle_extension", s)
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return eval_extension("$(%s)" % s)
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results = []
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lex = QuickLexer(DOLLAR_DOLLAR_BRACE=r"\$\$+\{",
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EXPR=r"\$\{[^\}]*\}",
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EXTENSION=r"\$\([^\)]*\)",
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TEXT=r"([^\$]|\$[^{(]|\$$)+")
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lex.lex(text)
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while lex.peek():
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if lex.peek()[0] == lex.EXPR:
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results.append(handle_expr(lex.next()[1][2:-1]))
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# print("1:", results)
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elif lex.peek()[0] == lex.EXTENSION:
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results.append(handle_extension(lex.next()[1][2:-1]))
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# print("2:",results)
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elif lex.peek()[0] == lex.TEXT:
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results.append(lex.next()[1])
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# print("3:",results)
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elif lex.peek()[0] == lex.DOLLAR_DOLLAR_BRACE:
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results.append(lex.next()[1][1:])
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# print("4:",results)
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# print(results)
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return ''.join(map(str, results))
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# Expands macros, replaces properties, and evaluates expressions
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def eval_all(root, macros, symbols):
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# Evaluates the attributes for the root node
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for at in root.attributes.items():
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result = eval_text(at[1], symbols)
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root.setAttribute(at[0], result)
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previous = root
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node = next_node(previous)
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while node:
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if node.nodeType == xml.dom.Node.ELEMENT_NODE:
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if node.tagName in macros:
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body = macros[node.tagName].cloneNode(deep=True)
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params = body.getAttribute('params').split()
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# Expands the macro
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scoped = Table(symbols)
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for name, value in node.attributes.items():
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if not name in params:
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raise XacroException("Invalid parameter \"%s\" while expanding macro \"%s\"" %
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(str(name), str(node.tagName)))
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params.remove(name)
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scoped[name] = eval_text(value, symbols)
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# Pulls out the block arguments, in order
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cloned = node.cloneNode(deep=True)
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eval_all(cloned, macros, symbols)
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block = cloned.firstChild
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for param in params[:]:
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if param[0] == '*':
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||||
while block and block.nodeType != xml.dom.Node.ELEMENT_NODE:
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||||
block = block.nextSibling
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||||
if not block:
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||||
raise XacroException(
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||||
"Not enough blocks while evaluating macro %s" % str(node.tagName))
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params.remove(param)
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scoped[param] = block
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||||
block = block.nextSibling
|
||||
|
||||
if params:
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||||
raise XacroException("Some parameters were not set for macro %s" %
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str(node.tagName))
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eval_all(body, macros, scoped)
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||||
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||||
# Replaces the macro node with the expansion
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||||
for e in list(child_elements(body)): # Ew
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||||
node.parentNode.insertBefore(e, node)
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||||
node.parentNode.removeChild(node)
|
||||
|
||||
node = None
|
||||
elif node.tagName == 'insert_block' or node.tagName == 'xacro:insert_block':
|
||||
name = node.getAttribute('name')
|
||||
|
||||
if ("**" + name) in symbols:
|
||||
# Multi-block
|
||||
block = symbols['**' + name]
|
||||
|
||||
for e in list(child_elements(block)):
|
||||
node.parentNode.insertBefore(
|
||||
e.cloneNode(deep=True), node)
|
||||
node.parentNode.removeChild(node)
|
||||
elif ("*" + name) in symbols:
|
||||
# Single block
|
||||
block = symbols['*' + name]
|
||||
|
||||
node.parentNode.insertBefore(
|
||||
block.cloneNode(deep=True), node)
|
||||
node.parentNode.removeChild(node)
|
||||
else:
|
||||
raise XacroException(
|
||||
"Block \"%s\" was never declared" % name)
|
||||
|
||||
node = None
|
||||
else:
|
||||
# Evals the attributes
|
||||
for at in node.attributes.items():
|
||||
result = eval_text(at[1], symbols)
|
||||
node.setAttribute(at[0], result)
|
||||
previous = node
|
||||
elif node.nodeType == xml.dom.Node.TEXT_NODE:
|
||||
node.data = eval_text(node.data, symbols)
|
||||
previous = node
|
||||
else:
|
||||
previous = node
|
||||
|
||||
node = next_node(previous)
|
||||
return macros
|
||||
|
||||
# Expands everything except includes
|
||||
|
||||
|
||||
def eval_self_contained(doc):
|
||||
macros = grab_macros(doc)
|
||||
symbols = grab_properties(doc)
|
||||
eval_all(doc.documentElement, macros, symbols)
|
||||
|
||||
|
||||
def print_usage(exit_code=0):
|
||||
print("Usage: %s [-o <output>] <input>" % 'xacro.py')
|
||||
print(" %s --deps Prints dependencies" % 'xacro.py')
|
||||
print(" %s --includes Only evalutes includes" % 'xacro.py')
|
||||
sys.exit(exit_code)
|
||||
|
||||
|
||||
def main():
|
||||
# print("dir:",os.path.dirname(sys.argv[2]))
|
||||
# sys.exit(0)
|
||||
try:
|
||||
opts, args = getopt.gnu_getopt(
|
||||
sys.argv[1:], "ho:", ['deps', 'includes'])
|
||||
except getopt.GetoptError as err:
|
||||
print(str(err))
|
||||
print_usage(2)
|
||||
|
||||
just_deps = False
|
||||
just_includes = False
|
||||
|
||||
output = sys.stdout
|
||||
for o, a in opts:
|
||||
if o == '-h':
|
||||
print_usage(0)
|
||||
elif o == '-o':
|
||||
output = open(a, 'w')
|
||||
elif o == '--deps':
|
||||
just_deps = True
|
||||
elif o == '--includes':
|
||||
just_includes = True
|
||||
|
||||
if len(args) < 1:
|
||||
print("No input given")
|
||||
print_usage(2)
|
||||
|
||||
f = open(args[0])
|
||||
# print(args[0])
|
||||
# sys.exit(0)
|
||||
doc = None
|
||||
try:
|
||||
doc = parse(f)
|
||||
except xml.parsers.expat.ExpatError:
|
||||
sys.stderr.write("Expat parsing error. Check that:\n")
|
||||
sys.stderr.write(" - Your XML is correctly formed\n")
|
||||
sys.stderr.write(" - You have the xacro xmlns declaration: " +
|
||||
"xmlns:xacro=\"http://www.ros.org/wiki/xacro\"\n")
|
||||
sys.stderr.write("\n")
|
||||
raise
|
||||
finally:
|
||||
f.close()
|
||||
|
||||
# print(type(doc))
|
||||
# print(opts, args)
|
||||
# print("dir:",os.path.dirname(sys.argv[2]))
|
||||
# sys.exit(0)
|
||||
process_includes(doc, os.path.dirname(sys.argv[2]))
|
||||
if just_deps:
|
||||
for inc in all_includes:
|
||||
sys.stdout.write(inc + " ")
|
||||
sys.stdout.write("\n")
|
||||
elif just_includes:
|
||||
doc.writexml(output)
|
||||
print()
|
||||
else:
|
||||
eval_self_contained(doc)
|
||||
banner = [xml.dom.minidom.Comment(c) for c in
|
||||
[" %s " % ('='*83),
|
||||
" | This document was autogenerated by xacro from %-30s | " % args[0],
|
||||
" | EDITING THIS FILE BY HAND IS NOT RECOMMENDED %-30s | " % "",
|
||||
" %s " % ('='*83)]]
|
||||
first = doc.firstChild
|
||||
for comment in banner:
|
||||
doc.insertBefore(comment, first)
|
||||
|
||||
output.write(doc.toprettyxml(indent=' '))
|
||||
# doc.writexml(output, newl = "\n")
|
||||
print()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user