I have uploaded ptex2pdf to CTAN. Changes are mainly about how files are searched and extensions are treated. ptex2pdf now follows the TeX standard, that is:
- first check if the passed in filename can be found with libkpathsea
- if not, try the filename with .tex appended
- if that also does not fail, try the filename with .ltx appended.
This also made finding the .dvi file more robust.
The files should be in today’s TeX Live, and can be downloaded directly from here: ptex2pdf-0.8.zip, or only the lua scrip: ptex2pdf.lua.
For more details, see the main description page: /software-projects/ptex2pdf (in Japanese) or see the github project.