src/Idris/REPLParser.hs · Idris-dev

1module Idris.REPLParser(parseCmd) where

2

3import System.FilePath ((</>))

4import System.Console.ANSI (Color(..))

5

6import Idris.Colours

7import Idris.AbsSyntax

8import Idris.Core.TT

9import qualified Idris.Parser as P

10

11import Control.Applicative

12import Control.Monad.State.Strict

13

14import Text.Parser.Combinators

15import Text.Parser.Char(anyChar)

16import Text.Trifecta(Result, parseString)

17import Text.Trifecta.Delta

18

19import Debug.Trace

20import Data.List

21import Data.List.Split(splitOn)

22import Data.Char(toLower)

23import qualified Data.ByteString.UTF8 as UTF8

24

25parseCmd :: IState -> String -> String -> Result Command

26parseCmd i inputname = P.runparser pCmd i inputname

27

28cmd :: [String] -> P.IdrisParser ()

29cmd xs = do P.lchar ':'; docmd (sortBy (\x y -> compare (length y) (length x)) xs)

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

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

32

33pCmd :: P.IdrisParser Command

34pCmd = do P.whiteSpace; try (do cmd ["q", "quit"]; eof; return Quit)

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

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

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

38 return (ModImport (toPath f)))

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

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

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

42 c <- option ViaC codegenOption

43 f <- P.identifier

44 eof

45 return (Compile c f))

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

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

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

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

50 <|> try (do cmd ["l", "load"]; f <- many anyChar; return (Load f))

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

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

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

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

55 <|> try (do cmd ["doc"]; n <- P.fnName; eof; return (DocStr n))

56 <|> try (do cmd ["d", "def"]; some (P.char ' ') ; n <- P.fnName; eof; return (Defn n))

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

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

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

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

61 <|> try (do cmd ["i", "info"]; n <- P.fnName; eof; return (Info n))

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

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

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

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

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

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

68 <|> try (do cmd ["s", "search"]; P.whiteSpace; t <- P.fullExpr defaultSyntax; return (Search t))

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

92 hints <- many P.fnName

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

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

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

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

97 hint <- P.fnName

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

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

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

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

102 return (Just x))

103 eof; return (AddProof n))

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

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

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

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

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

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

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

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

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

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

114

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

116

117pOption :: P.IdrisParser Opt

118pOption = do discard (P.symbol "errorcontext"); return ErrContext

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

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

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

122

123codegenOption :: P.IdrisParser Codegen

124codegenOption = do discard (P.symbol "javascript"); return ViaJavaScript

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

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

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

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

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

130

131pConsoleWidth :: P.IdrisParser ConsoleWidth

132pConsoleWidth = do discard (P.symbol "auto"); return AutomaticWidth

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

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

135

136colours :: [(String, Maybe Color)]

137colours = [ ("black", Just Black)

138 , ("red", Just Red)

139 , ("green", Just Green)

140 , ("yellow", Just Yellow)

141 , ("blue", Just Blue)

142 , ("magenta", Just Magenta)

143 , ("cyan", Just Cyan)

144 , ("white", Just White)

145 , ("default", Nothing)

146 ]

147

148pColour :: P.IdrisParser (Maybe Color)

149pColour = doColour colours

150 where doColour [] = fail "Unknown colour"

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

152

153pColourMod :: P.IdrisParser (IdrisColour -> IdrisColour)

154pColourMod = try (P.symbol "vivid" >> return doVivid)

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

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

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

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

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

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

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

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

163 where doVivid i = i { vivid = True }

164 doDull i = i { vivid = False }

165 doUnderline i = i { underline = True }

166 doNoUnderline i = i { underline = False }

167 doBold i = i { bold = True }

168 doNoBold i = i { bold = False }

169 doItalic i = i { italic = True }

170 doNoItalic i = i { italic = False }

171 doSetColour c i = i { colour = c }

172

173

174colourTypes :: [(String, ColourType)]

175colourTypes = map (\x -> ((map toLower . reverse . drop 6 . reverse . show) x, x)) $

176 enumFromTo minBound maxBound

177

178pColourType :: P.IdrisParser ColourType

179pColourType = doColourType colourTypes

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

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

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

183

184pSetColourCmd :: P.IdrisParser Command

185pSetColourCmd = (do c <- pColourType

186 let defaultColour = IdrisColour Nothing True False False False

187 opts <- sepBy pColourMod (P.whiteSpace)

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

189 return $ SetColour c colour)

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

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