Add command line options

[fsalinasmendoza]

Support the following command line interface:

cfsconvert [-d dsteps] [-s tsize] [-c] [-b]  [-t]  SOURCE [DESTINATION]

• -d dsteps: Sets the number of defuzzification steps.
• -s tsize: Sets the size of the membership function tables.
• -c: The converter outputs C source code.
• -b: The converter outputs a CFS file.
• -t: The converter outputs a text file.
• SOURCE: FIS file path.
• DESTINATION: Output file path.

More details:

• dsteps and tsize should be wired to option parameter of FuzzySystem.to_cfs. These options are supported but not exposed in the CLI at the moment.
• -c should generate .h and .c files. An example of generated C source code is attached (motor18.h.txt, motor18.c.txt).
• -b should generate a binary .cfs file.
• -t should generate a .txt file with the bytes of the CFS structure comma-separated and encoded as hex strings. An example of a text file is provided (motor15.txt).
• -c , -t and -b should be mutually exclusive. If none of these options is defined, the output file type is inferred from the file extension. If the file extension is unknown, then a text file is generated.
• If DESTINATION is omitted then the input file name is used with the corresponding extension.

To implement the output format selection three classes could be created under the lib/exporter directory: (maybe in three separate files: c_exporter.rb, cfs_exporter.rb and text_exporter.rb). A C++ implementation of c_exporter is attached as an example. See CExporter.cpp.txt, CExporter.h.txt.

[fsalinasmendoza]

The command line interface was redefined. See readme. Commit.