I am looking for a library to parse command-line parameters that would work identically in Java, C/C++, Python and (preferably) shell. By "identical" I mean (1) have exactly the same rules for parsing of the parameters in all three languages, (2) use the same configuration files or have similar API to specify the parameters, (3) have similar APIs to access the values of the parameters. I am looking for a library to parse command-lin