[Haskell-cafe] ANNOUNCE: Grempa 0.1.0, Embedded grammar DSL and LALR parser generator

[Felipe Lessa]

On Mon, Sep 6, 2010 at 2:45 PM, Olle Fredriksson
<fredriksson.olle at gmail.com> wrote:
>     expr :: Grammar Char E
>     expr = do
>       rec
>         e <- rule [ Plus  <@> e <# '+' <#> t
>                   , id    <@> t
>                   ]
>         t <- rule [ Times <@> t <# '*' <#> f
>                   , id    <@> f
>                   ]
>         f <- rule [ id    <@ '(' <#> e <# ')'
>                   , Var   <@ 'x'
>                   ]
>       return e

Looks like Applicative style.  This is good, even while I don't really
know why we are seeing <@> and <#> instead of <$> and <*>.

How does Grempa compare with other parsing libraries/tools, such as
Parsec, Attoparsec and Happy, with regard to ease of use and
performance?

Cheers! =)

-- 
Felipe.