src/Idris/REPLParser.hs · Idris-dev

1

2module Idris.REPLParser(parseCmd) where

3

4import System.FilePath ((</>))

5import System.Console.ANSI (Color(..))

6

7import Idris.Colours

8import Idris.AbsSyntax

9import Idris.Core.TT

10import qualified Idris.Parser as P

11

12import Control.Applicative

13import Control.Monad.State.Strict

14

15import Text.Parser.Combinators

16import Text.Parser.Char(anyChar)

17import Text.Trifecta(Result, parseString)

18import Text.Trifecta.Delta

19

20import Debug.Trace

21import Data.List

22import Data.List.Split(splitOn)

23import Data.Char(toLower)

24import qualified Data.ByteString.UTF8 as UTF8

25

26parseCmd :: IState -> String -> String -> Result Command

27parseCmd i inputname = P.runparser pCmd i inputname

28

29cmd :: [String] -> P.IdrisParser ()

30cmd xs = do P.lchar ':'; docmd (sortBy (\x y -> compare (length y) (length x)) xs)

31 where docmd [] = fail "No such command"

32 docmd (x:xs) = try (discard (P.symbol x)) <|> docmd xs

33

34pCmd :: P.IdrisParser Command

35pCmd = do P.whiteSpace; try (do cmd ["q", "quit"]; eof; return Quit)

36 <|> try (do cmd ["h", "?", "help"]; eof; return Help)

37 <|> try (do cmd ["w", "warranty"]; eof; return Warranty)

38 <|> try (do cmd ["r", "reload"]; eof; return Reload)

39 <|> try (do cmd ["module"]; f <- P.identifier; eof;

40 return (ModImport (toPath f)))

41 <|> try (do cmd ["e", "edit"]; eof; return Edit)

42 <|> try (do cmd ["exec", "execute"]; eof; return Execute)

43 <|> try (do cmd ["c", "compile"]

44 i <- get

45 c <- option (opt_codegen $ idris_options i) codegenOption

46 f <- P.identifier

47 eof

48 return (Compile c f))

49 <|> try (do cmd ["proofs"]; eof; return Proofs)

50 <|> try (do cmd ["rmproof"]; n <- P.name; eof; return (RmProof n))

51 <|> try (do cmd ["showproof"]; n <- P.name; eof; return (ShowProof n))

52 <|> try (do cmd ["log"]; i <- P.natural; eof; return (LogLvl (fromIntegral i)))

53 <|> try (do cmd ["let"]

54 defn <- concat <$> many (P.decl defaultSyntax)

55 return (NewDefn defn))

56 <|> try (do cmd ["lto", "loadto"];

57 toline <- P.natural

58 f <- many anyChar;

59 return (Load f (Just (fromInteger toline))))

60 <|> try (do cmd ["l", "load"]; f <- many anyChar;

61 return (Load f Nothing))

62 <|> try (do cmd ["cd"]; f <- many anyChar; return (ChangeDirectory f))

63 <|> try (do cmd ["spec"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (Spec t))

64 <|> try (do cmd ["hnf"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (HNF t))

65 <|> try (do cmd ["inline"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (TestInline t))

66 <|> try (do cmd ["doc"]; c <- P.constant; eof; return (DocStr (Right c)))

67 <|> try (do cmd ["doc"]; n <- (P.fnName <|> (P.string "_|_" >> return falseTy)); eof; return (DocStr (Left n)))

68 <|> try (do cmd ["d", "def"]; P.whiteSpace; n <- P.fnName; eof; return (Defn n))

69 <|> try (do cmd ["total"]; do n <- P.fnName; eof; return (TotCheck n))

70 <|> try (do cmd ["t", "type"]; do P.whiteSpace; t <- P.fullExpr defaultSyntax; return (Check t))

71 <|> try (do cmd ["u", "universes"]; eof; return Universes)

72 <|> try (do cmd ["di", "dbginfo"]; n <- P.fnName; eof; return (DebugInfo n))

73 <|> try (do cmd ["miss", "missing"]; n <- P.fnName; eof; return (Missing n))

74 <|> try (do cmd ["dynamic"]; eof; return ListDynamic)

75 <|> try (do cmd ["dynamic"]; l <- many anyChar; return (DynamicLink l))

76 <|> try (do cmd ["color", "colour"]; pSetColourCmd)

77 <|> try (do cmd ["set"]; o <- pOption; return (SetOpt o))

78 <|> try (do cmd ["unset"]; o <- pOption; return (UnsetOpt o))

79 <|> try (do cmd ["s", "search"]; P.whiteSpace;

80 t <- P.typeExpr (defaultSyntax { implicitAllowed = True }); return (Search t))

81 <|> try (do cmd ["cs", "casesplit"]; P.whiteSpace;

82 upd <- option False (do P.lchar '!'; return True)

83 l <- P.natural; n <- P.name;

84 return (CaseSplitAt upd (fromInteger l) n))

85 <|> try (do cmd ["apc", "addproofclause"]; P.whiteSpace;

86 upd <- option False (do P.lchar '!'; return True)

87 l <- P.natural; n <- P.name;

88 return (AddProofClauseFrom upd (fromInteger l) n))

89 <|> try (do cmd ["ac", "addclause"]; P.whiteSpace;

90 upd <- option False (do P.lchar '!'; return True)

91 l <- P.natural; n <- P.name;

92 return (AddClauseFrom upd (fromInteger l) n))

93 <|> try (do cmd ["am", "addmissing"]; P.whiteSpace;

94 upd <- option False (do P.lchar '!'; return True)

95 l <- P.natural; n <- P.name;

96 return (AddMissing upd (fromInteger l) n))

97 <|> try (do cmd ["mw", "makewith"]; P.whiteSpace;

98 upd <- option False (do P.lchar '!'; return True)

99 l <- P.natural; n <- P.name;

100 return (MakeWith upd (fromInteger l) n))

101 <|> try (do cmd ["ml", "makelemma"]; P.whiteSpace;

102 upd <- option False (do P.lchar '!'; return True)

103 l <- P.natural; n <- P.name;

104 return (MakeLemma upd (fromInteger l) n))

105 <|> try (do cmd ["ps", "proofsearch"]; P.whiteSpace;

106 upd <- option False (do P.lchar '!'; return True)

107 l <- P.natural; n <- P.name;

108 hints <- many P.fnName

109 return (DoProofSearch upd True (fromInteger l) n hints))

110 <|> try (do cmd ["ref", "refine"]; P.whiteSpace;

111 upd <- option False (do P.lchar '!'; return True)

112 l <- P.natural; n <- P.name;

113 hint <- P.fnName

114 return (DoProofSearch upd False (fromInteger l) n [hint]))

115 <|> try (do cmd ["p", "prove"]; n <- P.name; eof; return (Prove n))

116 <|> try (do cmd ["m", "metavars"]; eof; return Metavars)

117 <|> try (do cmd ["a", "addproof"]; do n <- option Nothing (do x <- P.name;

118 return (Just x))

119 eof; return (AddProof n))

120 <|> try (do cmd ["x"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (ExecVal t))

121 <|> try (do cmd ["patt"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (Pattelab t))

122 <|> try (do cmd ["errorhandlers"]; eof ; return ListErrorHandlers)

123 <|> try (do cmd ["consolewidth"]; w <- pConsoleWidth ; return (SetConsoleWidth w))

124 <|> try (do cmd ["apropos"]; str <- many anyChar ; return (Apropos str))

125 <|> try (do cmd ["wc", "whocalls"]; P.whiteSpace; n <- P.fnName ; return (WhoCalls n))

126 <|> try (do cmd ["cw", "callswho"]; P.whiteSpace; n <- P.fnName ; return (CallsWho n))

127 <|> try (do cmd ["mkdoc"]; str <- many anyChar; return (MakeDoc str))

128 <|> do P.whiteSpace; do eof; return NOP

129 <|> do t <- P.fullExpr defaultSyntax; return (Eval t)

130

131 where toPath n = foldl1' (</>) $ splitOn "." n

132

133pOption :: P.IdrisParser Opt

134pOption = do discard (P.symbol "errorcontext"); return ErrContext

135 <|> do discard (P.symbol "showimplicits"); return ShowImpl

136 <|> do discard (P.symbol "originalerrors"); return ShowOrigErr

137 <|> do discard (P.symbol "autosolve"); return AutoSolve

138 <|> do discard (P.symbol "nobanner") ; return NoBanner

139 <|> do discard (P.symbol "warnreach"); return WarnReach

140

141codegenOption :: P.IdrisParser Codegen

142codegenOption = do discard (P.symbol "javascript"); return ViaJavaScript

143 <|> do discard (P.symbol "node"); return ViaNode

144 <|> do discard (P.symbol "Java"); return ViaJava

145 <|> do discard (P.symbol "llvm"); return ViaLLVM

146 <|> do discard (P.symbol "bytecode"); return Bytecode

147 <|> do discard (P.symbol "C"); return ViaC

148

149pConsoleWidth :: P.IdrisParser ConsoleWidth

150pConsoleWidth = do discard (P.symbol "auto"); return AutomaticWidth

151 <|> do discard (P.symbol "infinite"); return InfinitelyWide

152 <|> do n <- fmap fromInteger P.natural; return (ColsWide n)

153

154colours :: [(String, Maybe Color)]

155colours = [ ("black", Just Black)

156 , ("red", Just Red)

157 , ("green", Just Green)

158 , ("yellow", Just Yellow)

159 , ("blue", Just Blue)

160 , ("magenta", Just Magenta)

161 , ("cyan", Just Cyan)

162 , ("white", Just White)

163 , ("default", Nothing)

164 ]

165

166pColour :: P.IdrisParser (Maybe Color)

167pColour = doColour colours

168 where doColour [] = fail "Unknown colour"

169 doColour ((s, c):cs) = (try (P.symbol s) >> return c) <|> doColour cs

170

171pColourMod :: P.IdrisParser (IdrisColour -> IdrisColour)

172pColourMod = try (P.symbol "vivid" >> return doVivid)

173 <|> try (P.symbol "dull" >> return doDull)

174 <|> try (P.symbol "underline" >> return doUnderline)

175 <|> try (P.symbol "nounderline" >> return doNoUnderline)

176 <|> try (P.symbol "bold" >> return doBold)

177 <|> try (P.symbol "nobold" >> return doNoBold)

178 <|> try (P.symbol "italic" >> return doItalic)

179 <|> try (P.symbol "noitalic" >> return doNoItalic)

180 <|> try (pColour >>= return . doSetColour)

181 where doVivid i = i { vivid = True }

182 doDull i = i { vivid = False }

183 doUnderline i = i { underline = True }

184 doNoUnderline i = i { underline = False }

185 doBold i = i { bold = True }

186 doNoBold i = i { bold = False }

187 doItalic i = i { italic = True }

188 doNoItalic i = i { italic = False }

189 doSetColour c i = i { colour = c }

190

191-- | Generate the colour type names using the default Show instance.

192colourTypes :: [(String, ColourType)]

193colourTypes = map (\x -> ((map toLower . reverse . drop 6 . reverse . show) x, x)) $

194 enumFromTo minBound maxBound

195

196pColourType :: P.IdrisParser ColourType

197pColourType = doColourType colourTypes

198 where doColourType [] = fail $ "Unknown colour category. Options: " ++

199 (concat . intersperse ", " . map fst) colourTypes

200 doColourType ((s,ct):cts) = (try (P.symbol s) >> return ct) <|> doColourType cts

201

202pSetColourCmd :: P.IdrisParser Command

203pSetColourCmd = (do c <- pColourType

204 let defaultColour = IdrisColour Nothing True False False False

205 opts <- sepBy pColourMod (P.whiteSpace)

206 let colour = foldr ($) defaultColour $ reverse opts

207 return $ SetColour c colour)

208 <|> try (P.symbol "on" >> return ColourOn)

209 <|> try (P.symbol "off" >> return ColourOff)