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"""Routines for converting Attachment rules to and from XML."""
from lxml import etree
def _toXML(self, root):
root.set("basename", self.base_name)
root.set("markname", self.mark_name)
for n, anchor in self.bases.items():
base = etree.SubElement(root, "base")
base.set("name", n)
base.set("anchorX", str(anchor[0]))
base.set("anchorY", str(anchor[1]))
for n, anchor in self.marks.items():
mark = etree.SubElement(root, "mark")
mark.set("name", n)
mark.set("anchorX", str(anchor[0]))
mark.set("anchorY", str(anchor[1]))
return root
@classmethod
def fromXML(klass, el):
"""Creates a rule from a lxml Element object."""
rule = klass(
base_name=el.get("basename"),
mark_name=el.get("markname"),
address=el.get("address"),
flags=int(el.get("flags") or 0),
)
for baseormark in el:
key = baseormark.get("name")
value = (int(baseormark.get("anchorX")), int(baseormark.get("anchorY")))
if baseormark.tag == "base":
rule.bases[key] = value
elif baseormark.tag == "mark":
rule.marks[key] = value
return rule
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