{- |

Module : $Header$

Description : Internal data types of the CMDL interface

Copyright : uni-bremen and DFKI

License : similar to LGPL, see HetCATS/LICENSE.txt or LIZENZ.txt

Maintainer : r.pascanu@jacobs-university.de

Stability : provisional

Portability : portable

PGIP.DataTypes describes the internal states(or datatypes) of the CMDL

interface.

-}

module PGIP.DataTypes

( CMDL_State(..)

, CMDL_CmdDescription(..)

, CMDL_CmdPriority(..)

, CMDL_CmdFnClasses(..)

, CMDL_CmdRequirements(..)

, CMDL_Channel(..)

, CMDL_ChannelType(..)

, CMDL_ChannelProperties(..)

, CMDL_Socket(..)

, CMDL_UseTranslation(..)

, CMDL_ProverConsChecker(..)

, CMDL_PrompterState(..)

, CMDL_Message(..)

, CMDL_ListAction(..)

, CMDL_GoalAxiom(..)

) where

import Interfaces.DataTypes

import System.IO

import Network.Socket

data CMDL_GoalAxiom =

ChangeGoals

| ChangeAxioms

data CMDL_ProverConsChecker =

Use_prover

| Use_consChecker

data CMDL_UseTranslation =

Do_translate

| Dont_translate

-- * CMDL datatypes

-- | CMDLState contains all information the CMDL interface

-- might use at any time.

data CMDL_State = CMDL_State {

-- | Interface state (should be common for any interface)

intState :: IntState,

-- | promter of the interface

prompter :: CMDL_PrompterState,

-- | open comment

openComment :: Bool,

-- | opened connections

connections :: [CMDL_Channel],

-- | output of interface

output :: CMDL_Message

}

data CMDL_PrompterState = CMDL_PrompterState {

fileLoaded :: String,

prompterHead :: String

}

-- | Description of a command ( in order to have a uniform access to any of

-- the commands

data CMDL_CmdDescription = CMDL_CmdDescription {

cmdNames :: [String],

cmdDescription :: String,

cmdInput :: String,

cmdPriority :: CMDL_CmdPriority,

cmdFn :: CMDL_CmdFnClasses,

cmdReq :: CMDL_CmdRequirements

}

-- | Some commands have different status, for example 'end-script'

-- needs to be processed even though the interface is in reading script

-- state. The same happens with '}%' even though the interface is in

-- multi line comment state. In order not to treat this few commands

-- separately from the other it is easy just to give to all commands

-- different priorities

data CMDL_CmdPriority =

CmdNoPriority

| CmdGreaterThanComments

| CmdGreaterThanScriptAndComments

-- | Any command belongs to one of the following classes of functions,

-- a) f :: s -> IO s

-- b) f :: String -> s -> IO s

data CMDL_CmdFnClasses =

CmdNoInput (CMDL_State -> IO CMDL_State)

| CmdWithInput (String -> CMDL_State -> IO CMDL_State)

-- | Datatype describing the types of commands according

-- to what they expect as input

data CMDL_CmdRequirements =

ReqNodes

| ReqEdges

| ReqNodesAndEdges

| ReqProvers

| ReqConsCheck

| ReqComorphism

| ReqFile

| ReqGNodes

| ReqGEdges

| ReqGNodesAndGEdges

| ReqAxm

| ReqGoal

| ReqNumber

| ReqNothing

| ReqUnknown

-- Communication channel datatypes -----------------------------------------

-- | CMDLSocket takes care of opened sockets for comunication with other

-- application like the Broker in the case of PGIP

data CMDL_Channel = CMDL_Channel {

chName :: String,

chType :: CMDL_ChannelType,

chHandler :: Handle,

chSocket :: Maybe CMDL_Socket,

chProperties :: CMDL_ChannelProperties

}

-- | Channel type describes different type of channel

data CMDL_ChannelType =

-- socket type

ChSocket

-- file type

| ChFile

-- std in

| ChStdin

-- std out

| ChStdout

-- | Channel properties describes what a channel can do

data CMDL_ChannelProperties =

ChRead

| ChWrite

| ChReadWrite

-- | Describes a socket

data CMDL_Socket = CMDL_Socket {

socketHandler :: Socket,

socketHostName :: HostName,

socketPortNumber :: PortNumber

}

-- | Datatype describing the list of possible action on a list

-- of selected items

data CMDL_ListAction =

ActionSet

| ActionSetAll

| ActionDel

| ActionDelAll

| ActionAdd

-- | output message given by the interface

data CMDL_Message = CMDL_Message {

outputMsg :: String,

warningMsg :: String,

errorMsg :: String

}