[Mailman-Developers] [CLI Project] Command Parsing method switched to YACC

[Rajeev S]

Hi,

I have been a bit unhappy about the regular expression approach for command
validation and array processing for command parsing to get the arguments.
So I have decided to switch to the conventional and right method to do it,
using the Lex-YACC duo, using the PLY module.

I have already ported half of the command's processing to PLY and it works
great. I will be completing the rest of commands by 25/07/2014, I expect to
push r67 by 26/07/2014.

I have set a soft deadline for the tasks mentioned in my proposal as
06/08/2014, Google deadline being 11/08/2014.

Remaining tasks include,

1. Backup and restore tool,
2. Export data to CSV or Text
3. Man Pages
4. User Documentation -- Docstring improvement and regularization
5. Writing Installation routines for new modules

All tasks except `1`  are easy. So my primary focus for the next week(s)
would be the backup and restore tool.

Post the above mentioned soft deadline, I would be writing the unittests
for the new units. I had postponed the unit test writing as it consumed lot
my time.