https://github.com/mikeizbicki/parsed

a haskellified version of the classic sed unix tool
https://github.com/mikeizbicki/parsed

Last synced: 6 days ago
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a haskellified version of the classic sed unix tool

• Host: GitHub
• URL: https://github.com/mikeizbicki/parsed
• Owner: mikeizbicki
• License: bsd-3-clause
• Created: 2014-08-22T07:29:26.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-04-01T15:06:16.000Z (almost 10 years ago)
• Last Synced: 2024-11-08T22:36:56.377Z (2 months ago)
• Language: TeX
• Homepage:
• Size: 383 KB
• Stars: 21
• Watchers: 4
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# parsed

Parsed (pronounced par-séd) is a suite of shell scripts to simplify parsing from the Unix shell.

It improves the classic sed program by incorporating ideas from Haskell's popular [parsec](https://hackage.haskell.org/package/parsec) library.

In particular, the Unix pipe operator `|` corresponds exactly to Haskell's Applicative bind `*>`.

The resulting syntax is both intuitive and powerful.

The original syntax used by sed can match only regular languages;

but our improved syntax can match any context sensitive language.

For example, the following one liner creates a parser for matching balanced parenthesis.

```

$ parens() { choice "$1" "match '(' | parens \"$1\" | match ')'"; }

```

For more examples and a detailed tutorial, please see our [SIGBOVIK2015 paper](https://github.com/mikeizbicki/parsed/raw/master/sigbovik2015/paper.pdf).