[Haskell-cafe] megaparsec 6 migration

[Ara Adkins]

Hey Josh,

I found it pretty useful to just have a read of the changelog [1] when migrating from Megaparsec 5 to 6. I don’t know of any in-depth updated tutorials, but if you’re familiar enough with Megaparsec the changelog should provide the detail you need. 

It took me around an hour to update a serious parser that I maintain, so the changes aren’t overly inconvenient. 

I hope that helps. 

_ara

[1] https://github.com/mrkkrp/megaparsec/blob/master/CHANGELOG.md

> On 25 Aug 2017, at 04:26, ☂Josh Chia (謝任中) <joshchia at gmail.com> wrote:
> 
> I'm trying to migrate my codebase from megaparsec 5 to megaparsec 6.
> 
> There appears to be major changes. For example, Text.Megaparsec.String.Parser & Text.Megaparsec.Error.Dec have both disappeared.
> 
> I'm sure I could slowly plod through the new documentation, figure out the types and figure out how to migrate the code on my own, but examples & tutorials would be more time-efficient.
> 
> Are there examples or tutorials compatible with megaparsec 6? For a start, what should I do with the above two things that have 'disappeared'? What do I replace them with?
> 
> Josh
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