#41 Add Halstead & SEMI Metrics

[Anonymous]

It would be great to have Halstead Effort for methods
and SEIMI (Software Engineering Institute's
Maintainability Index) for projects. Documentation on
these can be found at SEI web site, or I can provide on
request.

jeff.oakes@htsco.com

[Nobody/Anonymous]

Discussion of Halstead metrics.

[Nick Veys]

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This would be fantastic! Halstead is the only major metric
not available in this. SEIMI is simply a combination of
others already implemented and Halstead.

[Pieter Kuijpers]

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The Halstead metric is based on number of 'operators' and
'operands', how does this translate to java source code?
What should be counted as operator and operands? And how
should 'distinct' operators and operands be determined? I
found some references using java bytecode to count these,
but none on java source code.

[Nick Veys]

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It's really kind of arbitrary... I've roughly implemented a
Hallstead Effort as a test using these guidelines:

http://www.verifysoft.com/en_halstead_metrics.html

Assuming Java is roughly C++ with some extra keywords.

Finishing up some final touches on a Comment/Comment %age
metric to add to this then I may tackle the SEIMI full steam.