BIND 10 #904: gen-wiredata.py need more documentation.

[BIND 10 Development]

#904: gen-wiredata.py need more documentation.
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                   Reporter:         |                 Owner:  jinmei
  jinmei                             |                Status:  accepted
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20110816
                  Component:         |            Resolution:
  documentation                      |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  0.0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Branch trac904 is ready for review.

 The main part of the branch is the Python documentation strings
 for the generator script (as a module) and for main classes defined
 there.

 I've also made some small changes:
 - refactor the code so that it will be more easily extended
 - fixed some minor bugs in the script
 - added support for AAAA RR/RDATA, in order to check whether the
   documentation is correct about extending the script
 - updated process_rename_test.py to solve the problem described in
   #1150.  It's not directly related to this task, but since I needed
   to regenerate the script from .in many times I wanted to do it by
   simply running 'make', but to do so I had to fix the regression.

 And, finally, I made one organizational change: moving the script to
 lib/util/python.  Since this is (or could be) a general purpose helper
 scripts that are used in several modules, and since the script itself
 doesn't depend on libdns++, I thought it would make more sense to
 place it in a general purpose util module.

 I don't think we need a changelog entry for this task.

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Ticket URL: <http://bind10.isc.org/ticket/904#comment:5>
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