https://github.com/lev135/space-consumers

Improved space consumers for megaparsec library
https://github.com/lev135/space-consumers

haskell haskell-library megaparsec parsing

Last synced: 17 days ago
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Improved space consumers for megaparsec library

• Host: GitHub
• URL: https://github.com/lev135/space-consumers
• Owner: Lev135
• License: bsd-3-clause
• Created: 2022-10-24T06:01:17.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-11-09T21:40:03.000Z (about 2 years ago)
• Last Synced: 2024-11-18T14:08:00.896Z (3 months ago)
• Topics: haskell, haskell-library, megaparsec, parsing
• Language: Haskell
• Homepage:
• Size: 46.9 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
Improved space consumers for megaparsec

===

This package provides an alternative approach for white space consuming to

[Text.Megaparsec.Char.Lexer](https://hackage.haskell.org/package/megaparsec-9.2.2/docs/Text-Megaparsec-Char-Lexer.html).

*WARNING this package is under implementation*. Bugs are very likely here. All

behavior is instable, don't rely on any version policy.

Available features

---

At the moment `Text.Megaparsec.Char.Lexer.New` provides combinators mostly like

standard megaparsec lexer does with the following differences:

- there is a special `newtype` for line space consumers and a type synonym for

  the space and eols consumers

- `indentBlock` replaced by a more flexible `block` and `headedBlock`

  combinators

- `lineFold` behavior changed

In general, new approach impose more restrictions on how white space should be

consumed. In my experience not enough clear rules leads here to bugs so I'd like

to restrict them. However, I don't think current implementation to be the

only right, so I'd like to consider any other proposals and maybe change the

lib's behavior.

Usage

---

Just import `Text.Megaparsec.Char.Lexer.New` instead of

`Text.Megaparsec.Char.Lexer` --- all you need is exported from there.

Contribution

---

Issues (bugs, feature requests or otherwise feedback) may be reported in the

[GitHub issue tracker](https://github.com/Lev135/space-consumers/issues).

Pull requests are also welcome.