strm2oas issue incorrect offset table warnings

[stefanottili]

test.oas has been attached gzipped because GitHub doesn't let me attach test.oas directly. Oasis files should never be gzipped. Especially the ones using strict_mode with the table offsets specified at the END. Use --cblocks if compression is needed. On this test case I didn't.

The cell test is empty.
klayout test.oas works without any warnings, strm2oas not so much.

strm2oas test.oas a.oas

Warning: CELLNAME offset table has unexpected strict mode (position=174, cell=)
Warning: TEXTSTRING offset table has unexpected strict mode (position=177, cell=)
Warning: PROPNAME offset table has unexpected strict mode (position=179, cell=)
Warning: LAYERNAME offset table has unexpected strict mode (position=184, cell=)

[0000013] START "1.0" 1000.0 1

[0000028] CELL 0

[0000030] PROPNAME_TABLE
[0000030] PROPNAME "S_CELL_OFFSET"
[0000045] PROPNAME "S_MAX_SIGNED_INTEGER_WIDTH"
[0000073] PROPNAME "S_MAX_UNSIGNED_INTEGER_WIDTH"
[0000103] PROPNAME "S_TOP_CELL"
[0000115] PROPNAME "S_BOUNDING_BOXES_AVAILABLE"
[0000143] PROPNAME "S_BOUNDING_BOX"

[0000159] CELLNAME_TABLE
[0000159] CELLNAME "test"
[0000165] PROPERTY 0x17 refnum 0 standard values 1 8 28

[0000170] TEXTSTRING_TABLE

[0000170] LAYERNAME_TABLE
[0000170] END 1 159 1 170 1 30 0 0 1 170 0 0 none

test.oas.gz

[klayoutmatthias]

Thanks for the testcase. The warning is kind of nonsense: the mode was "expect non-strict mode", but it should be "don't care" as in the application's reader.