klayout cannot open CIF files exported by LASI tlc2cif #28
LASI generates CIF files which fail to be identified as CIF by klayout.
LASI has a tool, tlc2cif, that outputs files like the one attached (lasi.cif.txt -- note, I had to add the .txt suffix so github would upload it, though klayout is perfectly happy with the .txt extension using klayout -e lasi.cif.txt)
The CIF file unfortunately contains
allows klayout to properly identify, and then parse and open the file, but as far as I can tell, there's nothing illegal about using # as a separator as LASI does. And the only problem is that klayout doesn't recognize the file as a CIF file because it fails to find the "DS #" signature.
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Thanks for the issue. The solution goes a bit beyond the pull request - basically there were more issues. Now file format detection should be closer to the full specification. Still the requirement is that the first command is either "L" or "DS".
I have also included your file as a test case.
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