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from typing import Any, Optional, TYPE_CHECKING
from xml.dom.minidom import Element
if TYPE_CHECKING:
from .OsmApi import OsmApi
def _xml_build( # noqa: C901
element_type: str,
element_data: dict[str, Any],
with_headers: bool = True,
*,
data: "OsmApi",
) -> bytes:
xml = ""
if with_headers:
xml += '<?xml version="1.0" encoding="UTF-8"?>\n'
xml += '<osm version="0.6" generator="'
xml += data._created_by + '">'
xml += "\n"
# <element attr="val">
xml += " <" + element_type
if "id" in element_data:
xml += ' id="' + str(element_data["id"]) + '"'
if "lat" in element_data:
xml += ' lat="' + str(element_data["lat"]) + '"'
if "lon" in element_data:
xml += ' lon="' + str(element_data["lon"]) + '"'
if "version" in element_data:
xml += ' version="' + str(element_data["version"]) + '"'
visible_str = str(element_data.get("visible", True)).lower()
xml += ' visible="' + visible_str + '"'
if element_type in ["node", "way", "relation"]:
xml += ' changeset="' + str(data._current_changeset_id) + '"'
xml += ">\n"
# <tag... />
for k, v in element_data.get("tag", {}).items():
xml += ' <tag k="' + _xml_encode(k)
xml += '" v="' + _xml_encode(v) + '"/>\n'
# <member... />
for member in element_data.get("member", []):
xml += ' <member type="' + member["type"]
xml += '" ref="' + str(member["ref"])
xml += '" role="' + _xml_encode(member["role"])
xml += '"/>\n'
# <nd... />
for ref in element_data.get("nd", []):
xml += ' <nd ref="' + str(ref) + '"/>\n'
# </element>
xml += " </" + element_type + ">\n"
if with_headers:
xml += "</osm>\n"
return xml.encode("utf8")
def _xml_encode(text: str) -> str:
return (
text.replace("&", "&")
.replace('"', """)
.replace("<", "<")
.replace(">", ">")
)
def _get_xml_value(dom_element: Element, tag: str) -> Optional[str]:
try:
elem = dom_element.getElementsByTagName(tag)[0]
return elem.firstChild.nodeValue # type: ignore[union-attr]
except Exception:
return None
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