HaMinitel (empty) → 0.1.0.0
raw patch · 8 files changed
+1494/−0 lines, 8 filesdep +basedep +bytestringdep +serialportsetup-changed
Dependencies added: base, bytestring, serialport, stm
Files
- HaMinitel.cabal +29/−0
- LICENSE +675/−0
- Minitel/Constants.hs +228/−0
- Minitel/Generator.hs +283/−0
- Minitel/MString.hs +110/−0
- Minitel/Minitel.hs +132/−0
- Minitel/Queue.hs +35/−0
- Setup.hs +2/−0
+ HaMinitel.cabal view
@@ -0,0 +1,29 @@+name: HaMinitel+version: 0.1.0.0+synopsis: An Haskell library to drive the french Minitel through a serial port+-- description:+description:+ HaMinitel allows you to drive a french Minitel through a serial port in Haskell. It has been started as a mean to discover Haskell and functional programming.+homepage: https://github.com/Zigazou/HaMinitel+license: GPL-3+license-file: LICENSE+author: Frédéric BISSON+maintainer: zigazou@free.fr+-- copyright:+category: Terminal+build-type: Simple+cabal-version: >=1.8++source-repository head+ type: git+ location: https://github.com/Zigazou/HaMinitel++library+ exposed-modules:+ Minitel.MString+ Minitel.Constants+ Minitel.Generator+ Minitel.Queue+ Minitel.Minitel+ build-depends: base ==4.5.*, bytestring ==0.9.*, serialport ==0.4.*, stm ==2.4.*+ ghc-options: -fwarn-incomplete-patterns -fwarn-incomplete-uni-patterns
+ LICENSE view
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Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++ You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++ The GNU General Public License does not permit incorporating your program+into proprietary programs. If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library. If this is what you want to do, use the GNU Lesser General+Public License instead of this License. But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.+
+ Minitel/Constants.hs view
@@ -0,0 +1,228 @@+{-|+Module : Constants+Description : Values definitions from the Minitel universe+Copyright : (c) Frédéric BISSON, 2014+License : GPL-3+Maintainer : zigazou@free.fr+Stability : experimental+Portability : POSIX++The names were translated from french into english (the original documentation+is in french).+-}+module Minitel.Constants where++import Data.Char++-- No need for Integer default values, they are overkill for the Minitel+default (Int, Double)++-- * ASCII-Minitel control codes+-- Minitel follows the ASCII control codes standard except for some values+-- (ie.: ASCII em = Minitel SS2)+nul = 0x00 -- null+soh = 0x01 -- start of heading+stx = 0x02 -- start of text+etx = 0x03 -- end of text+eot = 0x04 -- end of transmission+enq = 0x05 -- enquiry+ack = 0x06 -- acknowledge+bel = 0x07 -- bell+bs = 0x08 -- backspace+tab = 0x09 -- horizontal tab+lf = 0x0a -- line feed, new line+vt = 0x0b -- vertical tab+ff = 0x0c -- form feed, new page+cr = 0x0d -- carriage return+so = 0x0e -- shift out+si = 0x0f -- shift in+dle = 0x10 -- data link escape+dc1 = 0x11 -- device control 1+con = 0x11 -- Cursor on+dc2 = 0x12 -- device control 2+rep = 0x12 -- Rep+dc3 = 0x13 -- device control 3+sep = 0x13 -- Sep+dc4 = 0x14 -- device control 4+cof = 0x14 -- Cursor off+nak = 0x15 -- negative acknowledge+syn = 0x16 -- synchronous idle+etb = 0x17 -- end of transmission block+can = 0x18 -- cancel+em = 0x19 -- end of medium+ss2 = 0x19 -- SS2+sub = 0x1a -- substitute+esc = 0x1b -- escape+fs = 0x1c -- file separator+gs = 0x1d -- group separator+ss3 = 0x1d -- SS3+rs = 0x1e -- record separator+us = 0x1f -- unit separator++-- * Protocol sequences+pro1 = [esc, 0x39] -- protocol 1 (needs one more arguments)+pro2 = [esc, 0x3a] -- protocol 2 (needs two more arguments)+pro3 = [esc, 0x3b] -- protocol 3 (needs three more arguments)+csi = [esc, 0x5b] -- CSI++-- * PRO1 commands+disconnection = 0x67+connection = 0x68+ret1 = 0x6c+ret2 = 0x6d+oppo = 0x6f+statusTerminal = 0x70+statusKeyboard = 0x72+statusRunning = 0x72+statusSpeed = 0x74+statusProtocol = 0x76+enqrom = 0x7b+reset = 0x7f++-- * PRO2 commands+copy = 0x7c+switchTo = 0x62+noDiffusion = 0x64+noAcknowledge = 0x64+diffusion = 0x65+acknowledge = 0x65+transparency = 0x66+start = 0x69+stop = 0x6a+prog = 0x6b+answerKeyboard = 0x73+answerRunning = 0x73+answerProtocol = 0x77+telinfo = [0x31, 0x7d]+mixed1 = [0x32, 0x7d]+mixed2 = [0x32, 0x7e]++-- * PRO2+START-STOP codes+rollMode = 0x43+procedure = 0x44+lowercase = 0x45++-- * PRO2+PROG codes+b9600 = 0x7f -- 9600 baud+b4800 = 0x76 -- 4800 baud+b1200 = 0x64 -- 1200 baud+b300 = 0x52 -- 300 baud++-- * PRO3 Commands+switchOff = 0x60+switchOn = 0x61+switchFrom = 0x63++-- * PRO commands length+pro1Length = 3+pro2Length = 4+pro3Length = 5++-- * Other codes+copyFrench = 0x6a+copyAmerican = 0x6b+extd = 0x41+c0 = 0x43++-- * Reception codes+recvScreen = 0x58+recvKeyboard = 0x59+recvModem = 0x5a+recvPlug = 0x5b+recvPhone = 0x5c+recvSoftware = 0x5d++-- * Emission codes+sendScreen = 0x50+sendKeyboard = 0x51+sendModem = 0x52+sendPlug = 0x53+sendPhone = 0x54+sendSoftware = 0x55++-- * Accents (for the VideoTex mode)+accCedilla = [ss2, 0x4b]+accGrave = [ss2, 0x41]+accAcute = [ss2, 0x42]+accCirconflexe = [ss2, 0x43]+accUmlaut = [ss2, 0x48]++-- * Direction keys+keyUp = csi ++ [0x41]+keyDown = csi ++ [0x42]+keyLeft = csi ++ [0x44]+keyRight = csi ++ [0x43]++keyShiftUp = csi ++ [0x4d]+keyShiftDown = csi ++ [0x4c]+keyShiftLeft = csi ++ [0x50]+keyShiftRight = csi ++ [0x34, 0x68]++ctrlLeft = 0x7f++-- * Return key+keyReturn = 0x0d+keyShiftReturn = csi ++ [0x48]+keyCtrlReturn = csi ++ [0x32, 0x4a]++-- * Function keys+keyFuncSend = [dc3, 0x41]+keyFuncReturn = [dc3, 0x42]+keyFuncRepeat = [dc3, 0x43]+keyFuncGuide = [dc3, 0x44]+keyFuncCancel = [dc3, 0x45]+keyFuncTOC = [dc3, 0x46]+keyFuncCorrection = [dc3, 0x47]+keyFuncNext = [dc3, 0x48]+keyFuncConnection = [dc3, 0x49]++-- | Minitel ability describes what the Minitel is able to do, since the+-- Minitel is a generic name for a complete family of terminals+data Ability = Ability+ { id :: Char -- ^ A Minitel is identified by a single letter+ , name :: String -- ^ Human french name+ , reversible :: Bool -- ^ Some Minitels can be used as a standard modem+ , keyboard :: String -- ^ First Minitels were ABCD, then Azerty or none+ , maxSpeed :: Int -- ^ Max supported speed in bauds+ , cols80 :: Bool -- ^ Is terminal mode (80 columns) supported ?+ , charDefine :: Bool -- ^ are characters redefinable ?+ } deriving (Show)++-- | A list of known Minitels and their abilities+minitelAbilities = [+ Ability 'c' "Minitel 1" False "ABCD" 1200 False False,+ Ability 'd' "Minitel 10" False "Azerty" 1200 False False,+ Ability 'e' "Minitel 1 couleur" False "Azerty" 1200 False False,+ Ability 'f' "Minitel 10" True "Azerty" 1200 False False,+ Ability 'g' "Émulateur" True "Azerty" 9600 True True,+ Ability 'j' "Imprimante" False "" 1200 False False,+ Ability 'r' "Minitel 1" True "Azerty" 1200 False False,+ Ability 's' "Minitel 1 couleur" True "Azerty" 1200 False False,+ Ability 't' "Terminatel 252" False "" 1200 False False,+ Ability 'u' "Minitel 1B" True "Azerty" 4800 True False,+ Ability 'v' "Minitel 2" True "Azerty" 9600 True True,+ Ability 'w' "Minitel 10B" True "Azerty" 4800 True False,+ Ability 'y' "Minitel 5" True "Azerty" 9600 True True,+ Ability 'z' "Minitel 12" True "Azerty" 9600 True True+ ]++-- | Base abilities, when you don't know the Minitel to which you are connected+baseAbilities =+ Ability '*' "Minitel inconnu" False "ABCD" 1200 False False++-- | Maker identification codes+makerCodes = [+ ('A', "Matra"),+ ('B', "RTIC"),+ ('C', "Telic-Alcatel"),+ ('D', "Thomson"),+ ('E', "CCS"),+ ('F', "Fiet"),+ ('G', "Fime"),+ ('H', "Unitel"),+ ('I', "Option"),+ ('J', "Bull"),+ ('K', "Télématique"),+ ('L', "Desmet")+ ]+
+ Minitel/Generator.hs view
@@ -0,0 +1,283 @@+{-|+Module : Generator+Description : MString generator+Copyright : (c) Frédéric BISSON, 2014+License : GPL-3+Maintainer : zigazou@free.fr+Stability : experimental+Portability : POSIX++This module provides functions generating MString for the Minitel. It allows+you to generate special commands for the Minitel like clearing screen, cursor+position etc. without remembering the codes.+-}+module Minitel.Generator where++import Minitel.Constants+import Minitel.MString+import Data.Char++-- | The Minitel supports 3 modes, with VideoTex being the standard one with+-- semigraphic 40 columns. Terminal (TeleInformatique) mode is able to+-- display textual 80 columns.+data MMode = VideoTex | Mixed | Terminal+ deriving (Ord, Eq, Show)++-- | Though the Minitel is generally shipped with a monochrome screen, it+-- actually supports colors+type MColor = Int++-- | Type class helping to convert a color to the actual color code of the+-- Minitel+class ToMColor a where+ toMColor :: a -> MColor++-- | Colors the Minitel is able to render+data Color = Black | Red | Green | Yellow | Blue | Magenta | Cyan | White+ deriving (Ord, Eq, Show)++-- | Grey scale the Minitel is able to render+data Grey = Grey0 | Grey1 | Grey2 | Grey3 | Grey4 | Grey5 | Grey6 | Grey7+ deriving (Ord, Eq, Show)++instance ToMColor Color where+ toMColor a = case a of+ Black -> 0+ Red -> 1+ Green -> 2+ Yellow -> 3+ Blue -> 4+ Magenta -> 5+ Cyan -> 6+ White -> 7++instance ToMColor Grey where+ toMColor a = case a of+ Grey0 -> 0+ Grey1 -> 4+ Grey2 -> 1+ Grey3 -> 5+ Grey4 -> 2+ Grey5 -> 6+ Grey6 -> 3+ Grey7 -> 7++-- | Switch from one mode to another. Note that all modes combinations are not +-- supported. For example, you cannot go directly from the Terminal mode to+-- the Mixed mode, you have to go back to VideoTex and then to Mixed.+-- Trying to go from a mode to the same mode will do nothing+mMode :: MMode -> MMode -> MConfirmation+mMode Terminal VideoTex = (csi ++ [0x3f, 0x7b], [sep, 0x5e])+mMode VideoTex Mixed = (pro2 ++ mixed1 , [sep, 0x70])+mMode VideoTex Terminal = (pro2 ++ telinfo , csi ++ [0x3f, 0x7a])+mMode Mixed VideoTex = (pro2 ++ mixed2 , [sep, 0x71])+mMode Mixed Terminal = mMode VideoTex Terminal+mMode _ _ = error "Unsupported mode switch"++-- | Convert a unicode string into an MString according to a mode. VideoTex+-- offers the best conversion.+mString :: MMode -> String -> MString+mString VideoTex s = concatMap toVideotex s+mString _ s = concatMap toTerminal s++-- | Get the identification MString from the Minitel+mIdentification :: MCall+mIdentification = (pro1 ++ [enqrom], 5)++-- | Enable or disable the extended keyboard. Disabled by default.+mExtendedKeyboard :: Bool -> MCall+mExtendedKeyboard True = (pro3 ++ [start, recvKeyboard, extd], pro3Length)+mExtendedKeyboard False = (pro3 ++ [stop , recvKeyboard, extd], pro3Length)++-- | Enable or disable the cursor keys. If disabled, the user cannot use cursor+-- keys on its Minitel (they will beep). Disabled by default.+mCursorKeys :: Bool -> MCall+mCursorKeys True = (pro3 ++ [start, recvKeyboard, c0], pro3Length)+mCursorKeys False = (pro3 ++ [stop , recvKeyboard, c0], pro3Length)++-- | Enable or disable caps lock mode. By default, the Minitel is in caps lock+-- mode.+mLowercaseKeyboard :: Bool -> MCall+mLowercaseKeyboard True = (pro2 ++ [start, lowercase], pro2Length)+mLowercaseKeyboard False = (pro2 ++ [stop , lowercase], pro2Length)++-- | Set foreground color+mForeground :: (ToMColor a) => a -> MString+mForeground color = [esc, 0x40 + toMColor color]++-- | Set background color+mBackground :: (ToMColor a) => a -> MString+mBackground color = [esc, 0x50 + toMColor color]++-- | Move cursor to an absolute position. Rows and columns starts at 1+-- The 0 row is the status line (at the very top of the screen) and is+-- handled differently from the rest of the screen by the Minitel.+mLocate :: Int -> Int -> MString+mLocate 1 1 = [rs]+mLocate x y = [us, 0x40 + y, 0x40 + x]++-- | Move cursor relatively to its current position. The function optimizes+-- the length of the generated MString+mMove :: Int -> Int -> MString+mMove 0 0 = []+mMove 0 y | y >= -4 && y <= -1 = replicate (abs y) vt+ | y >= 1 && y <= 4 = replicate y lf+ | y < 0 = csi ++ showInt y ++ [0x42]+ | y > 0 = csi ++ showInt y ++ [0x41]+mMove x 0 | x >= -4 && x <= -1 = replicate (abs x) bs+ | x >= 1 && x <= 4 = replicate x tab+ | x < 0 = csi ++ showInt x ++ [0x43]+ | x > 0 = csi ++ showInt x ++ [0x44]+mMove x y = mMove x 0 ++ mMove 0 y++-- | Move cursor to the start of the current line.+mGotoStartOfLine :: MString+mGotoStartOfLine = [cr]++-- | The Minitel is able to double width or height of characters+data CharSize = SimpleSize | DoubleSize++-- | Change character size. The first argument is the width, the second the+-- height+mSize :: CharSize -> CharSize -> MString+mSize SimpleSize SimpleSize = [esc, 0x4c + 0]+mSize SimpleSize DoubleSize = [esc, 0x4c + 1]+mSize DoubleSize SimpleSize = [esc, 0x4c + 2]+mSize DoubleSize DoubleSize = [esc, 0x4c + 3]++-- | Enable or disable characters underscoring. No underscoring by default.+mUnderscore :: Bool -> MString+mUnderscore True = [esc, 0x5a]+mUnderscore False = [esc, 0x59]++-- | Enable or disable characters blinking. No blinking by default.+mBlink :: Bool -> MString+mBlink True = [esc, 0x48]+mBlink False = [esc, 0x49]++-- | Enable or disable reverse video effect. No effect by default+mReverse :: Bool -> MString+mReverse True = [esc, 0x5d]+mReverse False = [esc, 0x5c]++-- | Display or hide the cursor. Hidden by default.+mVisibleCursor :: Bool -> MString+mVisibleCursor True = [con]+mVisibleCursor False = [cof]++-- | Enable or disable the echoing of keys pressed on the keyboard. If enabled,+-- a key pressed is sent both at the screen and at us. The Minitel keyboard+-- allows the user to send control codes and thus change the Minitel+-- configuration. For example, it is possible to change character colors or+-- anything else.+mEchoing :: Bool -> MCall+mEchoing True = (pro3 ++ [switchOn , recvScreen, sendModem], pro3Length)+mEchoing False = (pro3 ++ [switchOff, recvScreen, sendModem], pro3Length)++-- | Defines what can be cleared on the Minitel screen+data WhatToClear = Everything -- ^ Clear everything except the status+ | EndOfLine -- ^ Clear from cursor to end of line+ | EndOfScreen -- ^ Clear from cursor to end of screen+ | StartOfScreen -- ^ Clear from cursor to start of screen+ | StartOfLine -- ^ Clear from cursor to start of line+ | Line -- ^ Clear the current line+ | StatusLine -- ^ Clear the status line+ | ReallyEverything -- ^ Clear everything and the status line++-- | Clear something on the screen relatively to the current cursor position+mClear :: WhatToClear -> MString+mClear Everything = [ff]+mClear EndOfLine = [can]+mClear EndOfScreen = csi ++ [0x4a]+mClear StartOfScreen = csi ++ [0x31, 0x4a]+mClear StartOfLine = csi ++ [0x31, 0x4b]+mClear Line = csi ++ [0x32, 0x4b]+mClear StatusLine = [us, 0x40, 0x41, can, lf]+mClear ReallyEverything = mClear Everything ++ mClear StatusLine++-- | Repeat a character. The Minitel has a special function for repeating+-- characters which helps save bandwidth.+mRepeat :: Int -> Int -> MString+mRepeat count c | count == 0 = []+ | count == 1 = [c]+ | count == 2 = [c, c]+ | count < 87 = [c, rep, 0x40 + count - 1]+ | otherwise = error "Count is too big"++-- | Beep !!!+mBeep :: MString+mBeep = [bel]++-- | Defines what can be removed on the Minitel screen+data WhatToRemove = Column | Row++-- | Defines what can be inserted on the Minitel screen+type WhatToInsert = WhatToRemove++-- | Removes a number of columns or rows on the Minitel screen. Note that+-- removing columns only concerns the current line. Removing row concerns+-- all columns. When removing a column, characters on its right are moved+-- on the left. When removing a row, characters below it are moved upward.+mRemove :: WhatToRemove -> Int -> MString+mRemove Column count = csi ++ showInt count ++ [0x50]+mRemove Row count = csi ++ showInt count ++ [0x4d]++-- | Inserts a number of columns or rows on the Minitel screen. Note that+-- inserting columns only concerns the current line. Inserting row concerns+-- all columns. When inserting a column, characters on its right are moved+-- on the right. When inserting a row, characters below it are moved+-- downward.+mInsert :: WhatToInsert -> Int -> MString+mInsert Column count = csi ++ [0x34, 0x68] ++ replicate count 0x20+ ++ csi ++ [0x34, 0x6c]+mInsert Row count = csi ++ showInt count ++ [0x4c]++-- | Enable or disable the semigraphic mode. Disabled by default.+mSemigraphic :: Bool -> MString+mSemigraphic True = [so]+mSemigraphic False = [si]++-- | The Minitel uses two character sets: G0 and G1+data CharSet = G0 | G1++-- | Chooses which character set will be redefined. Useful only for the+-- mRedesign function.+mDefineSet :: CharSet -> MString+mDefineSet G0 = [us, 0x23, 0x20, 0x20, 0x20, 0x42, 0x49]+mDefineSet G1 = [us, 0x23, 0x20, 0x20, 0x20, 0x43, 0x49]++-- | Chooses the character set to use+mUseSet :: CharSet -> MString+mUseSet G0 = [esc, 0x28, 0x20, 0x42]+mUseSet G1 = [esc, 0x29, 0x20, 0x43]++-- | A character design is a list of 10 Strings. Each string contains 8+-- characters, either '1' or '0', thus allowing you to simple write the+-- character design using Haskell code.+type CharDesign = [String]++-- | Generate the MString used to redefine one character. Useful only for the+-- mRedesign function+mDesign :: CharDesign -> MString+mDesign design = map bits' ((multiSplit 6 . concat) design) ++ [0x30]+ where bits = foldl (\a v -> 2 * a + (if v == '1' then 1 else 0)) 0+ bits' s = 0x40 + bits s * (if length s == 2 then 16 else 1)+ multiSplit _ [] = []+ multiSplit nb s = start:multiSplit nb end+ where (start, end) = splitAt nb s++-- | Generate the MString used to redefine several characters. Useful only for+-- the mRedesign function+mDesigns :: [CharDesign] -> [MString]+mDesigns = map mDesign++-- | Redefine characters given the ord of the first character as the first+-- argument. The character set must also be indicated. It will be+-- automatically selected after the redefinition.+mRedesign :: Int -> [CharDesign] -> CharSet -> MString+mRedesign fromChar designs charset =+ mDefineSet charset+ ++ (concat . mDesigns) designs+ ++ [us, 0x41, 0x41]+ ++ mUseSet charset+
+ Minitel/MString.hs view
@@ -0,0 +1,110 @@+{-|+Module : MString+Description : Sequence of values for the Minitel+Copyright : (c) Frédéric BISSON, 2014+License : GPL-3+Maintainer : zigazou@free.fr+Stability : experimental+Portability : POSIX++MString Provides a structure holding a sequence of values for the Minitel.+-}+module Minitel.MString where++import Data.Char+import qualified Data.ByteString as B+import Minitel.Constants++-- | An MString is just an Int list+type MString = [Int]++-- | An MConfirmation is composed of two MString, the first is to be sent to+-- the Minitel and the second is what we should receive if everything went+-- well+type MConfirmation = (MString, MString)++-- | An MCall is composed ot an MString and an Int, the MString is to be sent+-- to the Minitel and the Int is the length of the MString we should receive+-- if everything went well+type MCall = (MString, Int)++-- | showInt will return an MString generated from an Int. For example, if it+-- is called showInt 27, it will return [0x32, 0x37]+showInt :: Int -> MString+showInt i = map ord $ show i++-- | Check if an MString received from the Minitel is complete. For example,+-- if the Minitel sent us an 0x19, it should be followed by another value.+completeReturn :: MString -> Bool+completeReturn [] = False+completeReturn [0x19] = False+completeReturn [0x13] = False+completeReturn [0x1b] = False+completeReturn [0x1b, 0x5b] = False+completeReturn [0x1b, 0x5b, 0x32] = False+completeReturn [0x1b, 0x5b, 0x34] = False+completeReturn _ = True++-- | Translates a unicode character to its VideoTex counterpart. Standard ASCII+-- characters are kept as the Minitel is based upon it. If the character has+-- no VideoTex counterpart, it is simply ignored and suppressed from the+-- outputted MString+toVideotex :: Char -> MString+toVideotex c + | c == '£' = [ss2, 0x23]+ | c == '°' = [ss2, 0x30]+ | c == '±' = [ss2, 0x31] + | c == '←' = [ss2, 0x2C]+ | c == '↑' = [ss2, 0x2D]+ | c == '→' = [ss2, 0x2E]+ | c == '↓' = [ss2, 0x2F] + | c == '¼' = [ss2, 0x3C]+ | c == '½' = [ss2, 0x3D]+ | c == '¾' = [ss2, 0x3E] + | c == 'ç' = accCedilla ++ [0x63]+ | c == '’' = accCedilla ++ [0x27] + | c == 'à' = accGrave ++ [0x61]+ | c == 'á' = accAcute ++ [0x61]+ | c == 'â' = accCirconflexe ++ [0x61]+ | c == 'ä' = accUmlaut ++ [0x61] + | c == 'è' = accGrave ++ [0x65]+ | c == 'é' = accAcute ++ [0x65]+ | c == 'ê' = accCirconflexe ++ [0x65]+ | c == 'ë' = accUmlaut ++ [0x65] + | c == 'ì' = accGrave ++ [0x69]+ | c == 'í' = accAcute ++ [0x69]+ | c == 'î' = accCirconflexe ++ [0x69]+ | c == 'ï' = accUmlaut ++ [0x69] + | c == 'ò' = accGrave ++ [0x6F]+ | c == 'ó' = accAcute ++ [0x6F]+ | c == 'ô' = accCirconflexe ++ [0x6F]+ | c == 'ö' = accUmlaut ++ [0x6F] + | c == 'ù' = accGrave ++ [0x75]+ | c == 'ú' = accAcute ++ [0x75]+ | c == 'û' = accCirconflexe ++ [0x75]+ | c == 'ü' = accUmlaut ++ [0x75] + | c == 'Œ' = [ss2, 0x6A]+ | c == 'œ' = [ss2, 0x7A] + | c == 'ß' = [ss2, 0x7B]+ | c == 'β' = [ss2, 0x7B]+ | isAscii c = [(fromIntegral . ord) c]+ | otherwise = []++-- | Translates a unicode character to its TeleInformatique (terminal mode)+-- counterpart. Standard ASCII characters are kept as the Minitel is based+-- upon it. If the character has no TeleInformatique counterpart, it is+-- simply ignored and suppressed from the outputted MString+toTerminal :: Char -> MString+toTerminal c+ | c == '£' = [0x0E, 0x23, 0x0F]+ | c == '°' = [0x0E, 0x5B, 0x0F]+ | c == 'ç' = [0x0E, 0x5C, 0x0F]+ | c == '’' = [0x27]+ | c == '`' = [0x60]+ | c == '§' = [0x0E, 0x5D, 0x0F]+ | c == 'à' = [0x0E, 0x40, 0x0F]+ | c == 'è' = [0x0E, 0x7F, 0x0F]+ | c == 'é' = [0x0E, 0x7B, 0x0F]+ | c == 'ù' = [0x0E, 0x7C, 0x0F]+ | isAscii c = [(fromIntegral . ord) c]+ | otherwise = []
+ Minitel/Minitel.hs view
@@ -0,0 +1,132 @@+{-|+Module : Minitel+Description : Interface to the Minitel+Copyright : (c) Frédéric BISSON, 2014+License : GPL-3+Maintainer : zigazou@free.fr+Stability : experimental+Portability : POSIX++This module provides to deal with Minitel communications.+-}+module Minitel.Minitel where++import Minitel.Generator+import Minitel.Queue+import Minitel.MString++import System.Hardware.Serialport+import qualified Data.ByteString as B++import Control.Concurrent+import Control.Concurrent.STM.TQueue+import Control.Concurrent.STM++import Control.Monad++-- | Structure to hold Minitel components+data Minitel = Minitel+ { serial :: SerialPort -- ^ Serial port to which the Minitel is connected+ , input :: Queue -- ^ What we receive from the Minitel+ , output :: Queue -- ^ What we send to the Minitel+ , receiver :: ThreadId -- ^ Receiver thread, allowing full-duplex+ , sender :: ThreadId -- ^ Sender thread, allowing full-duplex+ }++-- | Operator to send an MString to the Minitel+(<<<) :: Minitel -> MString -> IO ()+(<<<) minitel s = do+ putM (output minitel) s++-- | Sends an MString to the Minitel and waits for its answer. The answer+-- should be the awaited one specified in the MConfirmation. If there is+-- no answer from the Minitel or the answer is not the right one, returns+-- False+mConfirmation :: Minitel -> MConfirmation -> IO Bool+mConfirmation minitel (mSend, mReceive) = do+ putM (output minitel) mSend+ answer <- readMString (get $ input minitel) completeReturn+ return (answer == mReceive)++-- | Sends an MString to the Minitel and waits for its answer. It returns+-- an MString of max length as specified in the MCall.+mCall :: Minitel -> MCall -> IO MString+mCall minitel (mSend, count) = do+ putM (output minitel) mSend+ return =<< readCount (get $ input minitel) count++-- | Waits for an MString of @count@ elements coming from the Minitel. If it+-- takes too long, returns what has already been collected.+readCount :: (Eq a) => IO a -> Int -> IO [a]+readCount getter count = readMString getter isComplete+ where isComplete seq = length seq == count++-- | Waits for a complete MString coming from the Minitel. If it takes too+-- long, returns what has already been collected. To determine if the MString+-- is complete, it needs an @isComplete@ function which tells if an MString+-- is complete (True) or not (False).+readMString :: (Eq a) => IO a -> ([a] -> Bool) -> IO [a]+readMString getter isComplete = readMString' []+ where readMString' s+ | isComplete s = return s+ | s == [] = getter >>= \value -> readMString' [value]+ | otherwise = do+ result <- waitFor 10000000 getter+ case result of+ Just value -> readMString' $ s ++ [value]+ Nothing -> return s++-- | Waits for either a read to succeed or a delay to end. It does this by+-- running two threads. The first one to press the buzzer will stop the+-- function and returns the result (either Just a or Nothing)+waitFor :: (Eq a) => Int -> IO a -> IO (Maybe a)+waitFor delay getter = do+ done <- newEmptyMVar+ + -- Run a race between the reader and the waiter+ reader <- forkIO $ getter >>= \c -> putMVar done $ Just c+ waiter <- forkIO $ threadDelay delay >> putMVar done Nothing++ -- Wait for the first to win+ result <- takeMVar done++ killThread reader+ killThread waiter++ return result++-- | Base settings for the serial port on which is connected a Minitel.+-- Standard configuration is 1200 bps, 7 bits, 1 stop, even parity.+baseSettings = SerialPortSettings+ { commSpeed = CS1200+ , bitsPerWord = 7+ , stopb = One+ , parity = Even+ , flowControl = NoFlowControl+ , timeout = 1000000+ }++-- | Opens a full-duplex connection to a Minitel. The default serial is set+-- to /dev/ttyUSB0.+minitel :: String -> SerialPortSettings -> IO Minitel+minitel "" settings = minitel "/dev/ttyUSB0" settings+minitel dev settings = do+ port <- openSerial dev settings+ sendQueue <- atomically $ newTQueue+ recvQueue <- atomically $ newTQueue+ sendThread <- forkIO $ sendLoop port sendQueue+ recvThread <- forkIO $ recvLoop port recvQueue++ return Minitel+ { serial = port+ , input = recvQueue+ , output = sendQueue+ , receiver = recvThread+ , sender = sendThread+ }+ where sendLoop s q = forever $ get q >>= send s . B.singleton . fromIntegral+ recvLoop s q = forever $ do+ b <- recv s 1+ when (1 <= B.length b) $ (put q . fromIntegral . B.head) b+ +
+ Minitel/Queue.hs view
@@ -0,0 +1,35 @@+{-|+Module : Queue+Description : Shared queue for the Minitel+Copyright : (c) Frédéric BISSON, 2014+License : GPL-3+Maintainer : zigazou@free.fr+Stability : experimental+Portability : POSIX++Provides a shared queue for dealing with a Minitel+-}+module Minitel.Queue where++import Minitel.MString++import qualified Data.ByteString as B+import Control.Concurrent.STM.TQueue (TQueue, writeTQueue, readTQueue)+import Control.Concurrent.STM (atomically)+import Control.Monad (forM_)++-- | A queue is just a TQueue of Int+type Queue = TQueue Int++-- | Send an MString to the queue+putM :: Queue -> MString -> IO ()+putM q s = forM_ s $ \ x -> do put q x++-- | Send and Int to the queue+put :: Queue -> Int -> IO ()+put q = (atomically . writeTQueue q)++-- | Blocking get to retrieve an Int from the queue+get :: Queue -> IO Int+get = atomically . readTQueue+
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain