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ffishman
1a322faa0b
header_value kept an offset for every line up to the first ENDSEC: an input without one cost about 24 bytes per line (0.8 GB for 32 MiB of short lines, some 25 GB at the 1 GiB input limit). It now reads (group code, value) pairs in one pass and stops at 0/ENDSEC, so memory no longer grows with the input (36 MB for the same 32 MiB, the input itself). dxf_class_names doesn't read a binary DXF's CLASSES, so its proxies kept their DXF numbers, which name other classes in the DWG. CADCraft's own bridge is always ASCII; for a binary DXF given to the conversion functions, the proxies are now left out, as a pre-2013 DWG leaves them, instead of naming the wrong classes. Both reported by CodeRabbit on #2471.