Popularity
7.4
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Activity
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29
3
3

Monthly Downloads: 13
Programming language: Haskell
License: MIT License
Tags: Utils     Pretty Printer    
Latest version: v0.3.0.0

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README

Errata

[MIT License](./LICENSE) Hackage CI

Errata is an extremely customizable error pretty printer that can handle many kinds of error formatting.

Features

Errata can handle errors that are all over the source or errors that are connected to each other spanning multiple lines. You can be as simple or as fancy as you like!

You can also customize the format of the printer in several ways:

  • Custom messages and labels
  • Custom character sets for symbols
  • Highlighting the source, messages, and symbols

Examples

A clean, modern error message that is trying to be helpful:

[An error message that points out that the fold function was not found in scope. It then asks if the user meant to use foldl or foldr](./errata_fold.png)

A busy error message with underlining and connections:

[An error message that highlights mismatching types in an if expression. The first section underlines the mismatching values, and the second section underlines the if expression](./errata_if.png)


*Note that all licence references and agreements mentioned in the errata README section above are relevant to that project's source code only.