Revision 2557
Added by Aaron Marcuse-Kubitza over 12 years ago
| lib/xml_func.py | ||
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funcs = {}
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structural_funcs = set() |
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##### Public functions |
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def is_func_name(name): |
| ... | ... | |
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def strip(node, preserve=set()): |
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'''Replaces every XML function with its last parameter (which is usually its |
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value), except for _ignore, which is removed completely
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value), except for structural functions, which are evaluated by process().
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@param preserve set(str...) XML functions not to remove. |
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* container can be any iterable type |
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''' |
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preserve = set(preserve) |
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for child in xml_dom.NodeElemIter(node): strip(child, preserve) |
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name = node.tagName |
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if is_xml_func_name(name) and name not in preserve: |
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if name == '_ignore': value = None |
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else: value = pop_value(list(xml_dom.NodeTextEntryIter(node)), None) |
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xml_dom.replace_with_text(node, value) |
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is_func = is_xml_func_name(name) and name not in preserve |
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if is_func and name in structural_funcs: process(node) |
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else: |
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for child in xml_dom.NodeElemIter(node): strip(child, preserve) |
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if is_func: |
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value = pop_value(list(xml_dom.NodeTextEntryIter(node)), None) |
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xml_dom.replace_with_text(node, value) |
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##### XML functions |
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# Function names must start with _ to avoid collisions with real tags |
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# Functions take arguments (items) |
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#### General
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#### Structural
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def _ignore(items, node): |
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'''Used to "comment out" an XML subtree''' |
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return None |
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funcs['_ignore'] = _ignore |
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structural_funcs.add('_ignore')
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def _ref(items, node): |
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'''Used to retrieve a value from another XML node |
| ... | ... | |
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+str(addr))) |
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return value |
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funcs['_ref'] = _ref |
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structural_funcs.add('_ref')
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#### Conditionals |
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Also available in: Unified diff
xml_func.py: strip(): Evaluate structural functions like _ignore and _ref by process() instead of removing them. Store structural functions' names in structural_funcs module var. This ensures that _ref targets are still expanded in column-based import.