Comment 5 for bug 1159641

thanks for the input!

However, there is already an Inkscape extension that can read hpgl files. It is based on Uniconvertor and reads files with the extension .plt. I've attached a sample test case of an hpgl file. I read this into Inkscape using your hpgl extension and then renamed it to be .plt and read it in again using the .plt input. In both cases the results were similar.

Would you be willing to try the .plt input to see if it is suitable?