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 ["unlet","undefine"]

57 Undefine `fmap` many P.name)

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

59 toline <- P.natural

60 f <- many anyChar;

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

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

63 return (Load f Nothing))

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

110 hints <- many P.fnName

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

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

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

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

115 hint <- P.fnName

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

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

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

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

120 return (Just x))

121 eof; return (AddProof n))

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

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

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

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

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

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

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

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

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

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

132

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

134

135pOption :: P.IdrisParser Opt

136pOption = do discard (P.symbol "errorcontext"); return ErrContext

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

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

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

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

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

142

143codegenOption :: P.IdrisParser Codegen

144codegenOption = do discard (P.symbol "javascript"); return ViaJavaScript

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

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

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

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

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

150

151pConsoleWidth :: P.IdrisParser ConsoleWidth

152pConsoleWidth = do discard (P.symbol "auto"); return AutomaticWidth

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

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

155

156colours :: [(String, Maybe Color)]

157colours = [ ("black", Just Black)

158 , ("red", Just Red)

159 , ("green", Just Green)

160 , ("yellow", Just Yellow)

161 , ("blue", Just Blue)

162 , ("magenta", Just Magenta)

163 , ("cyan", Just Cyan)

164 , ("white", Just White)

165 , ("default", Nothing)

166 ]

167

168pColour :: P.IdrisParser (Maybe Color)

169pColour = doColour colours

170 where doColour [] = fail "Unknown colour"

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

172

173pColourMod :: P.IdrisParser (IdrisColour -> IdrisColour)

174pColourMod = try (P.symbol "vivid" >> return doVivid)

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

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

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

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

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

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

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

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

183 where doVivid i = i { vivid = True }

184 doDull i = i { vivid = False }

185 doUnderline i = i { underline = True }

186 doNoUnderline i = i { underline = False }

187 doBold i = i { bold = True }

188 doNoBold i = i { bold = False }

189 doItalic i = i { italic = True }

190 doNoItalic i = i { italic = False }

191 doSetColour c i = i { colour = c }

192

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

194colourTypes :: [(String, ColourType)]

195colourTypes = map (\x -> ((map toLower . reverse . drop 6 . reverse . show) x, x)) $

196 enumFromTo minBound maxBound

197

198pColourType :: P.IdrisParser ColourType

199pColourType = doColourType colourTypes

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

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

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

203

204pSetColourCmd :: P.IdrisParser Command

205pSetColourCmd = (do c <- pColourType

206 let defaultColour = IdrisColour Nothing True False False False

207 opts <- sepBy pColourMod (P.whiteSpace)

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

209 return $ SetColour c colour)

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

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