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# Copyright (c) 2021-2022, Manfred Moitzi
# License: MIT License
import sys
from ezdxf import comments
# ------------------------------------------------------------------------------
# Ezdxf drops all comments from loaded DXF files.
# This example shows how to load comments from DXF files if needed.
#
# docs: https://ezdxf.mozman.at/docs/comments.html
# ------------------------------------------------------------------------------
def main():
filename = sys.argv[1]
comment_collector = []
for code, value in comments.from_file(filename, codes={0, 5}):
# get also handles and structure tags to associated prepending comments
# to DXF entities
if code == 5:
handle = value
print(f"Handle: {handle}")
print("Prepending comments:")
for comment in comment_collector:
print(comment)
comment_collector = []
elif code == 0 and value == "ENDSEC":
# delete collected comments at end of section like the HEADER section
# this removes 'noise'.
comment_collector = []
elif code == 999:
comment_collector.append(value)
if __name__ == "__main__":
main()
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