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# PGF2
This is a Haskell binding to the PGF runtime in C.
The files are:
- PGF2.hsc: a user API similar to Python and Java APIs
- PGF2/FFI.hs: an internal module with FFI definitions for the relevant C functions
## How to compile
```
cabal install
```
**Note:** you must have the PGF C runtime already installed and available.
See <https://github.com/GrammaticalFramework/gf-core/blob/master/src/runtime/c/INSTALL>
## How to use
Import PGF to the Haskell program that you're writing.
The Cabal infrastructure will make sure to tell the compiler
where to find the relevant modules.
## Example
```haskell
module Main where
import PGF2
import qualified Data.Map as Map
main = do
pgf <- readPGF "Foo.pgf"
let Just english = Map.lookup "FooEng" (languages pgf)
```
## Changelog
### 1.1.0
Remove SG library.
### 1.0.0
Everything up until 2020-07-11.
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