Revision 1009
Added by Aaron Marcuse-Kubitza almost 13 years ago
| lib/xpath.py | ||
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# XPath parsing |
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import copy |
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import warnings |
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from Parser import Parser |
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import util |
| ... | ... | |
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# Value |
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if parser.str_('='):
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if parser.str_('$'): value = _path()
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else: value = _value() |
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if parser.str_('$'): # reference (different from a pointer)
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value = _path() |
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else: value = _value() # literal value |
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set_value(tree, value) |
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# Expand * abbrs |
| ... | ... | |
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children = xml_dom.by_tag_name(root, elem.name, |
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last_only and (elem.keys == [] or is_instance(elem))) |
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# Retrieve elem value |
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value_ = elem.value |
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if util.is_list(value_): # reference (different from a pointer) |
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targets = get(root, value_) |
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try: target = targets[0] |
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except IndexError: |
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warnings.warn(UserWarning('XPath reference target missing: '
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+str(value_)+'\nXPath: '+str(xpath))) |
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value_ = None |
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else: value_ = xml_dom.value(target) |
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# Check each match |
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nodes = [] |
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for child in children: |
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is_match = elem.value == None or xml_dom.value(child) == elem.value
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is_match = value_ == None or xml_dom.value(child) == value_
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for attr in elem.keys: |
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if not is_match: break |
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is_match = ((get(child, attr, False, last_only) != []) |
| ... | ... | |
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root.setAttribute(elem.name, '') |
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node = root.getAttributeNode(elem.name) |
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else: node = root.appendChild(doc.createElement(elem.name)) |
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if elem.value != None: xml_dom.set_value(node, elem.value)
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if value_ != None: xml_dom.set_value(node, value_)
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nodes.append(node) |
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value_ = value(xpath)
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path_value = value(xpath)
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xpath = xpath[1:] # rest of XPath |
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next = [] |
| ... | ... | |
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for branch in elem.other_branches: |
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branch = copy.deepcopy(branch) |
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set_value(branch, value_)
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set_value(branch, path_value)
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next += get(node, branch, create, last_only, limit, |
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allow_rooted=False) |
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Also available in: Unified diff
xpath.py: Added get() support for references (different from pointers) to dynamically set the value of an attribute