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duckling-4

Duckling can parse multiple items, and sometimes these can be ambigious depending on their context. In the spanish, 'una hora' can either refer to 1PM or to 1 hour, which was not properly recognized before. The fix is to account for this ambiguity with the existing ambiguity logic.

[unit-test] [parsing] [ambiguity]
hakyll-1

Hakyll creates static websites using a descriptive approach to routing. It was possible to declare identical paths (matching a file) for different resources, resulting in a hidden race-condition. The fix was to make this error explicit and show it to the users.

[race-condition] [file-system]
hakyll-2

HTML links support a variable 'srcsets' which covers multiple sources. Before the fix, Hakyll would only support single sources instead of multiple URLs. The patch consists of implementing a parser for it, to properly create the websites.

[parsing] [web]
hledger-2

In HLegder, users can get accumulated information of their financial accounts. Specifically with ROI, when iterating over the elements of an account, the elements where not checked to be zero before division. The fix is to filter (heading) zeroes.

[integration-test] [div-by-0] [restructuring]
hledger-3

HLedger supports aliases for accounts, including support for regex matching. There was incorrect parsing for these alias regexes, solved by adding the right 'between' and adding a line for allowing any character to be doubly escaped.

[integration-test] [parser-error] [regex] [character-escaping]
hledger-4

Hledger supports transactions with up to 1 'empty posting' (= no monetary amount). The option 'auto' can add another empty posting, which can result in faulty 2-empty-posting transactions. As a fix, 'auto' generated postings are non-empty by default.

[integration-test] [feature-collision] [data-inconsistency]
hls-1

In Haskell you can pun-records, which means to access field variables in a breviated way. When records are punned, there is a reference from pun to field declaration and from pun-name-use to pun-declaration, but no transitive reference. Meaning refactoring did not propagate to the latter. Solution is a second pass to find indirect pun-references and rename those as well.

[integration-test] [data-model] [refactoring] [design decision]
hls-2

HLS utilizes cabal features, in this case the definition of addition source directories. These directories must be specified as strings where the first character of a suggested module name is dropped if 'hs-source-dirs' is assigned simply as './' ('.' was expected). Fix is to canonicalise the path to always include the '/' and then trim it.

[string-manipulation] [off-by-one] [path-handling] [integration-test]
hls-3

HLS provides completion suggestions for users. Completions did not contain locally defined type families. The fix is to add type family definitions in class declarations.

[integration-test] [missed case]