Parsec branch (was Re: Bug in Parsec.Token)

Greg Fitzgerald garious at gmail.com
Wed Jun 16 02:19:51 EDT 2010


+1.  Thanks for doing this.  I ended up branching Parsec2 locally at work.
 I'll offer more patches if I find any bugs, but besides that one little one
that kicked off this thread, Parsec2 has been rock solid.

-Greg


On Wed, Jun 9, 2010 at 8:41 PM, Antoine Latter <aslatter at gmail.com> wrote:

> On Sat, Apr 3, 2010 at 6:21 AM, wren ng thornton
> <wren at community.haskell.org> wrote:
> >
> > I'd argue that it's acceptable, at least under this plan:
> >
> > * fork parsec-2.1 as parsec2-2.1
> > * continue to develop parsec2-* (as desired)
> > * deprecate parsec<3 with message to switch to parsec2-*
> > * continue parsec>=3 as parsec-*
> >
> >
> > The harm is minimal because:
> >
> > (a) anyone who is too lazy to upgrade their .cabal can still use
> parsec-2.1
> > until it bitrots
> >
> > (b) anyone who is too lazy to upgrade their code to parsec>=3 can just
> > update their .cabal to use parsec2-* if they want to avoid bitrot
> >
> > (c) anyone using parsec>=3 won't notice a thing.
> >
>
> I really like this plan, so I've finally gotten something done in this
> direction.
>
> I pulled parsec-2.1.0.1 off of hackage and stuffed it into a fresh
> darcs repo, and I've made two branches off of it:
>
> http://community.haskell.org/~aslatter/code/parsec-2/parsec2/
>
> This is a new package that I am willing to maintain. I expect to be
> limiting my actions to maintaing compatibility with as many GHC
> releases as practical, and I will accept patches needed to get working
> on other implementations. Fixes such as Greg's above are also
> appropriate when kept in sync with main-line.
>
>
> http://community.haskell.org/~aslatter/code/parsec-2/parsec-deprecated/
>
> I propose to upload this to hackage as parsec-2.1.0.2. It is identical
> in all respects to 2.1.0.1, except each module is marked as
> deprecated, producing the following warning:
>
>
> Text/ParserCombinators/Parsec/Language.hs:27:0:
>    Warning: In the use of type constructor or class `LanguageDef'
>             (imported from Text.ParserCombinators.Parsec.Token):
>             Deprecated: "Please use the parsec2 package or upgrade to
> a higher version of parsec"
>
> Any comments on either of these two branches? Is parsec2 the right
> name for the branch package? Does anyone want to see anything
> different in the package description text?
>
> Is the next step getting parsec2 into the Platform, and updating
> inter-platform deps?
>
> Take care,
> Antoine
>
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