| Line No. | Rev | Author | Line |
|---|---|---|---|
| 1 | 7 | paulosilva | |
| 2 | {-# LANGUAGE GADTs #-} | ||
| 3 | {-# OPTIONS_GHC -Wall #-} | ||
| 4 | |||
| 5 | ------------------------------------------------------------------------------- | ||
| 6 | |||
| 7 | {- | | ||
| 8 | Module : Language.Step.Syntax | ||
| 9 | Description : Abstract representation of proof steps. | ||
| 10 | Copyright : (c) Paulo Silva | ||
| 11 | License : LGPL | ||
| 12 | |||
| 13 | Maintainer : paufil@di.uminho.pt | ||
| 14 | Stability : experimental | ||
| 15 | Portability : portable | ||
| 16 | |||
| 17 | -} | ||
| 18 | |||
| 19 | ------------------------------------------------------------------------------- | ||
| 20 | |||
| 21 | module Language.Step.Syntax ( | ||
| 22 | Step(..), | ||
| 23 | steps | ||
| 24 | ) where | ||
| 25 | |||
| 26 | import Language.Combinator.Syntax | ||
| 27 | import Language.R.SyntaxADT | ||
| 28 | |||
| 29 | ------------------------------------------------------------------------------- | ||
| 30 | |||
| 31 | data Step where | ||
| 32 | Comb :: Combinator -> Step | ||
| 33 | Indirect :: Either S S -> Step | ||
| 34 | IndirectEnd :: Step | ||
| 35 | LeftP :: Step | ||
| 36 | Qed :: Step | ||
| 37 | RightP :: Step | ||
| 38 | SeqC :: Step -> Step -> Step | ||
| 39 | deriving Show | ||
| 40 | |||
| 41 | ------------------------------------------------------------------------------- | ||
| 42 | |||
| 43 | steps :: [String] | ||
| 44 | steps = ["indirect", "low", "up", "end", "left", "right", "seqc" ] |