30 lines
1.2 KiB
Markdown
30 lines
1.2 KiB
Markdown
# HPath
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Support for well-typed paths in Haskell.
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## Motivation
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The motivation came during development of
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[hsfm](https://github.com/hasufell/hsfm)
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which has a pretty strict File type, but lacks a strict Path type, e.g.
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for user input.
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The library that came closest to my needs was
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[path](https://github.com/chrisdone/path),
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but the API turned out to be oddly complicated for my use case, so I
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decided to fork it.
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## Differences to 'path'
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* doesn't attempt to fake IO-related types into the path, so whether a path points to a file or directory is up to your IO-code to decide... this should be a library that is used _with_ a proper IO File Type
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* trailing path separators will be preserved if they exist, no messing with that
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* uses safe ByteString for filepaths under the hood instead of unsafe String
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* fixes broken [dirname](https://github.com/chrisdone/path/issues/18)
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* renames dirname/filename to basename/dirname to match the POSIX shell functions
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* introduces a new `Path Fn` for safe filename guarantees and a `RelC` class
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* allows pattern matching via unidirectional PatternSynonym
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* uses simple doctest for testing
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* allows `~/` as relative path, because on posix level `~` is just a regular filename that does _NOT_ point to `$HOME`
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* remove TH, it sucks
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