Initial commit

We can parse an obj file.

Meshparser.hs

@@ -0,0 +1,20 @@
+module Meshparser where
+
+import Control.Applicative
+import Parser
+
+-- | Convert a text String with multiple vertices into
+-- an array of float tuples.
+meshToArr :: String           -- ^ the string to convert
+          -> [(Float, Float)] -- ^ the resulting float tuple
+meshToArr xs = fmap (\(Just (x, _)) -> x)      .
+                 filter (/= Nothing)           .
+                 fmap (runParser parseVertice) .
+                 lines                         $
+                 xs
+
+-- | Creates a Parser that accepts a single vertice, such as 'v 1.0 2.0'.
+parseVertice :: Parser (Float, Float)
+parseVertice = liftA2 (,)
+                 (char 'v' *> spaces *> posFloat)
+                 (spaces *> posFloat)