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Add a GSoC idea: fixed-point arithmetic in Ledger-CLI.

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Bradley M. Kuhn 2014-02-18 15:14:02 -05:00
parent 73eb410544
commit f19b266979
1 changed files with 19 additions and 2 deletions
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GSoC2014Ideas.mdwn
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@ -37,7 +37,24 @@ skills and background best when submitting your application.
great acid test will be to use the API to implement the great acid test will be to use the API to implement the
[IRS required charity public support test](http://www.irs.gov/Charities-&-Non-Profits/Exempt-Organizations-Annual-Reporting-Requirements-Form-990,-Schedules-A-and-B:-Public-Charity-Support-Test). [IRS required charity public support test](http://www.irs.gov/Charities-&-Non-Profits/Exempt-Organizations-Annual-Reporting-Requirements-Form-990,-Schedules-A-and-B:-Public-Charity-Support-Test).
2. Build a better test suite for [Ledger-CLI](http://www.ledger-cli.org/). 2. Convert [Ledger-CLI](http://www.ledger-cli.org/) to use fixed-point
arithmetic.
Currently Ledger-CLI uses floating point arithmetic, which is definitely a
mistake for an accounting system. This causes
[off-by-one bugs](http://bugs.ledger-cli.org/show_bug.cgi?id=992) on some
types of transactions. This should be fixed.
A successful student on this task will:
* Write various test cases for Ledger-CLI that will clearly show the
floating point issue.
* Rework the codebase to use fixed-point arithmetic so those bugs are
closed.
* Shepherd the patch upstream.
* Time permitting: verify that other Ledger implementations don't
face the same problem.
3. Build a better test suite for [Ledger-CLI](http://www.ledger-cli.org/).
Since this project relies so heavily on Ledger-CLI, we'd really like there Since this project relies so heavily on Ledger-CLI, we'd really like there
to be a full test coverage for Ledger-CLI. To do that, a student will to be a full test coverage for Ledger-CLI. To do that, a student will
@ -55,7 +72,7 @@ skills and background best when submitting your application.
require careful coordination with Ledger-CLI as an upstream, and we'll require careful coordination with Ledger-CLI as an upstream, and we'll
help mentor the student in that. help mentor the student in that.
3. Build a better Python interface to Ledger-CLI for use by our API. 4. Build a better Python interface to Ledger-CLI for use by our API.
Right now, Ledger-CLI has a rather incomplete Python interface, based on Right now, Ledger-CLI has a rather incomplete Python interface, based on
[Boost.Python](http://www.boost.org/doc/libs/1_55_0/libs/python/doc/). [Boost.Python](http://www.boost.org/doc/libs/1_55_0/libs/python/doc/).