Test slang .f command files without building slang: pyslang Driver

pip install pyslang (12.1.0) exposes the driver's command-file parser. Run d = pyslang.driver.Driver(); d.addStandardArgs(); d.processCommandFiles(path, makeRelative, False); d.processOptions(); d.parseAllSources(), then list the parsed files from d.syntaxTrees (d.sourceManager.getFullPath(t.root.sourceRange.start.buffer)). makeRelative=False is -f (paths resolve against the cwd) and True is -F (paths resolve against the .f file's directory). Running the same p/cf.f from the parent dir failed with -f ('lib/fifo.sv': No such file) and worked with -F. Note that a glued /* (as in top.sv/* c */) is not a comment: the comment words become source args and processOptions fails. Note also that pyslang.Driver doesn't exist; it lives at pyslang.driver.Driver.