{-# LANGUAGE FlexibleContexts, TypeOperators #-} -- Copyright (c) 2005,2007,2008 Jean-Philippe Bernardy -- | This module aims at a mode that should be (mostly) intuitive to -- emacs users, but mapping things into the Yi world when -- convenient. Hence, do not go into the trouble of trying 100% -- emulation. For example, M-x gives access to Yi (Haskell) functions, -- with their native names. module Yi.Keymap.Emacs (keymap, mkKeymap, defKeymap, ModeMap(..)) where import Prelude () import Data.Prototype import Yi.Command (shellCommandE) import Yi.Core import Yi.Dired import Yi.File import Yi.MiniBuffer import Yi.Misc (adjBlock, adjIndent) import Yi.Rectangle import Yi.TextCompletion import Yi.Keymap import Yi.Keymap.Emacs.KillRing import Yi.Mode.Buffers ( listBuffers ) import Yi.Keymap.Emacs.Utils ( askQuitEditor , evalRegionE , executeExtendedCommandE , findFile , findFileNewTab , promptFile , insertNextC , isearchKeymap , killBufferE , queryReplaceE , readUniversalArg , scrollDownE , scrollUpE , cabalConfigureE , switchBufferE , askSaveEditor , argToInt , promptTag , justOneSep , joinLinesE ) import Data.Maybe import Data.Char import Control.Monad import Control.Applicative data ModeMap = ModeMap { eKeymap :: Keymap , completionCaseSensitive :: Bool } keymap :: KeymapSet keymap = mkKeymap defKeymap mkKeymap :: Proto ModeMap -> KeymapSet mkKeymap = modelessKeymapSet . eKeymap . extractValue defKeymap :: Proto ModeMap defKeymap = Proto template where template self = ModeMap { eKeymap = emacsKeymap , completionCaseSensitive = False } where emacsKeymap :: Keymap emacsKeymap = selfInsertKeymap Nothing isDigit <|> completionKm (completionCaseSensitive self) <|> do univArg <- readUniversalArg selfInsertKeymap univArg (not . isDigit) <|> emacsKeys univArg selfInsertKeymap :: Maybe Int -> (Char -> Bool) -> Keymap selfInsertKeymap univArg condition = do c <- printableChar when (not . condition $ c) empty let n = argToInt univArg write (adjBlock n >> replicateM_ n (insertB c)) completionKm :: Bool -> Keymap completionKm caseSensitive = do some ((meta (char '/') ?>>! wordComplete' caseSensitive)) deprioritize write resetComplete -- 'adjustPriority' is there to lift the ambiguity between "continuing" completion -- and resetting it (restarting at the 1st completion). placeMark :: BufferM () placeMark = do putA highlightSelectionA True pointB >>= setSelectionMarkPointB selectAll ::BufferM() selectAll = botB >> placeMark >> topB >> setVisibleSelection True deleteB' :: BufferM () deleteB' = adjBlock (-1) >> deleteN 1 emacsKeys :: Maybe Int -> Keymap emacsKeys univArg = choice [ -- First all the special key bindings spec KTab ?>>! (adjIndent IncreaseCycle) , (shift $ spec KTab) ?>>! (adjIndent DecreaseCycle) , spec KEnter ?>>! (repeatingArg $ insertB '\n') , spec KDel ?>>! (repeatingArg (blockKillring >> deleteB')) , spec KBS ?>>! (repeatingArg (blockKillring >> adjBlock (-1) >> bdeleteB)) , spec KHome ?>>! (repeatingArg moveToSol) , spec KEnd ?>>! (repeatingArg moveToEol) , spec KLeft ?>>! (repeatingArg leftB) , spec KRight ?>>! (repeatingArg rightB) , spec KUp ?>>! (repeatingArg $ moveB VLine Backward) , spec KDown ?>>! (repeatingArg $ moveB VLine Forward) , spec KPageDown ?>>! (repeatingArg downScreenB) , spec KPageUp ?>>! (repeatingArg upScreenB) , shift (spec KUp) ?>>! (repeatingArg (scrollB (-1))) , shift (spec KDown) ?>>! (repeatingArg (scrollB 1)) -- All the keybindings of the form 'Ctrl + special key' , (ctrl $ spec KLeft) ?>>! (repeatingArg prevWordB) , (ctrl $ spec KRight) ?>>! (repeatingArg nextWordB) , (ctrl $ spec KHome) ?>>! (repeatingArg topB) , (ctrl $ spec KEnd) ?>>! (repeatingArg botB) , (ctrl $ spec KUp) ?>>! (repeatingArg $ prevNParagraphs 1) , (ctrl $ spec KDown) ?>>! (repeatingArg $ nextNParagraphs 1) -- All the keybindings of the form "C-c" where 'c' is some character , ctrlCh '@' ?>>! placeMark , ctrlCh ' ' ?>>! placeMark , ctrlCh '/' ?>>! repeatingArg undoB , ctrlCh '_' ?>>! repeatingArg undoB , ctrlCh 'a' ?>>! (repeatingArg (maybeMoveB Line Backward)) , ctrlCh 'b' ?>>! (repeatingArg leftB) , ctrlCh 'd' ?>>! (repeatingArg (blockKillring >> deleteB')) , ctrlCh 'e' ?>>! (repeatingArg (maybeMoveB Line Forward)) , ctrlCh 'f' ?>>! (repeatingArg rightB) , ctrlCh 'g' ?>>! (setVisibleSelection False) , ctrlCh 'h' ?>> char 'b' ?>>! acceptedInputs , ctrlCh 'i' ?>>! (adjIndent IncreaseOnly) , ctrlCh 'j' ?>>! newlineAndIndentB , ctrlCh 'k' ?>>! killLineE univArg , ctrlCh 'l' ?>>! (withBuffer scrollToCursorB >> userForceRefresh) , ctrlCh 'm' ?>>! (repeatingArg $ insertB '\n') , ctrlCh 'n' ?>>! (repeatingArg $ moveB VLine Forward) , ctrlCh 'o' ?>>! (repeatingArg (insertB '\n' >> leftB)) , ctrlCh 'p' ?>>! (repeatingArg $ moveB VLine Backward) , ctrlCh 'q' ?>> insertNextC univArg , ctrlCh 'r' ?>> (isearchKeymap Backward) , ctrlCh 's' ?>> (isearchKeymap Forward) , ctrlCh 't' ?>>! (repeatingArg $ swapB) , ctrlCh 'v' ?>>! scrollDownE univArg , ctrlCh 'w' ?>>! killRegion , ctrlCh 'y' ?>>! yankE , ctrlCh 'z' ?>>! suspendEditor -- All the keybindings of the form "C-M-c" where 'c' is some character , ( ctrl $ metaCh 'w') ?>>! appendNextKillE -- All the key-bindings which are preceded by a 'C-x' , ctrlCh 'x' ?>> ctrlX , ctrlCh 'c' ?>> ctrlC -- All The key-bindings of the form M-c where 'c' is some character. , metaCh ' ' ?>>! justOneSep , metaCh 'v' ?>>! scrollUpE univArg , metaCh '!' ?>>! shellCommandE , metaCh 'p' ?>>! cabalConfigureE , metaCh '<' ?>>! (repeatingArg topB) , metaCh '>' ?>>! (repeatingArg botB) , metaCh '%' ?>>! queryReplaceE , metaCh '^' ?>>! joinLinesE univArg , metaCh ';' ?>>! withModeB modeToggleCommentSelection , metaCh 'a' ?>>! (repeatingArg $ moveB unitSentence Backward) , metaCh 'b' ?>>! (repeatingArg prevWordB) , metaCh 'c' ?>>! (repeatingArg capitaliseWordB) , metaCh 'd' ?>>! (repeatingArg killWordB) , metaCh 'e' ?>>! (repeatingArg $ moveB unitSentence Forward) , metaCh 'f' ?>>! (repeatingArg nextWordB) , metaCh 'h' ?>>! (setSelectRegionB =<< regionOfB unitParagraph) , metaCh 'k' ?>>! (repeatingArg $ deleteB unitSentence Forward) , metaCh 'l' ?>>! (repeatingArg lowercaseWordB) , metaCh 'm' ?>>! firstNonSpaceB , metaCh 'q' ?>>! (withSyntax modePrettify) , metaCh 'u' ?>>! (repeatingArg uppercaseWordB) , metaCh 't' ?>>! (repeatingArg $ transposeB unitWord Forward) , metaCh 'w' ?>>! killRingSaveE , metaCh 'x' ?>>! executeExtendedCommandE , metaCh 'y' ?>>! yankPopE , metaCh '.' ?>>! promptTag -- Other meta key-bindings , meta (spec KBS) ?>>! (repeatingArg bkillWordB) , metaCh 'g' ?>> optMod meta (char 'g') >>! (gotoLn . fromDoc :: Int ::: LineNumber -> BufferM Int) ] where -- inserting the empty string prevents the deletion from appearing in the killring -- which is a good thing when we are deleting individuals characters. See -- http://code.google.com/p/yi-editor/issues/detail?id=212 blockKillring = insertN "" withUnivArg :: YiAction (m ()) () => (Maybe Int -> m ()) -> YiM () withUnivArg cmd = do runAction $ makeAction (cmd univArg) repeatingArg :: (Monad m, YiAction (m ()) ()) => m () -> YiM () repeatingArg f = withIntArg $ \n -> replicateM_ n f withIntArg :: YiAction (m ()) () => (Int -> m ()) -> YiM () withIntArg cmd = withUnivArg $ \arg -> cmd (fromMaybe 1 arg) ctrlC = choice [ ctrlCh 'c' ?>>! withModeB modeToggleCommentSelection ] rectangleFuntions = choice [char 'a' ?>>! alignRegionOn, char 'o' ?>>! openRectangle, char 't' ?>>! stringRectangle, char 'k' ?>>! killRectangle, char 'y' ?>>! yankRectangle ] tabFunctions :: Keymap tabFunctions = choice [ optMod ctrl (char 'n') >>! nextTabE , optMod ctrl (char 'p') >>! previousTabE , optMod ctrl (char 't') >>! newTabE , optMod ctrl (char 'e') >>! findFileNewTab , optMod ctrl (char 'd') >>! deleteTabE , charOf id '0' '9' >>=! moveTab . Just . digitToInt ] -- These keybindings are all preceded by a 'C-x' so for example to -- quit the editor we do a 'C-x C-c' ctrlX = choice [ ctrlCh 'o' ?>>! deleteBlankLinesB , char '^' ?>>! (repeatingArg enlargeWinE) , char '0' ?>>! closeWindow , char '1' ?>>! closeOtherE , char '2' ?>>! splitE , char 'h' ?>>! selectAll , char 's' ?>>! askSaveEditor , ctrlCh 'b' ?>>! listBuffers , ctrlCh 'c' ?>>! askQuitEditor , ctrlCh 'f' ?>>! findFile , ctrlCh 'q' ?>>! (withBuffer $ modA readOnlyA not) , ctrlCh 's' ?>>! fwriteE , ctrlCh 'w' ?>>! promptFile "Write file:" fwriteToE , ctrlCh 'x' ?>>! (exchangePointAndMarkB >> putA highlightSelectionA True) , char 'b' ?>>! switchBufferE , char 'd' ?>>! dired , char 'e' ?>> char 'e' ?>>! evalRegionE , char 'o' ?>>! nextWinE , char 'k' ?>>! killBufferE , char 'r' ?>> rectangleFuntions , char 'u' ?>>! (repeatingArg undoB) , char 'v' ?>>! (repeatingArg shrinkWinE) , optMod ctrl (char 't') >> tabFunctions ]