cc reverse

-- reverses cc terminal output left to right
-- pastebin get rxSRAq2h rev

local oldterm = {}
local oldos = {}
local oldio = {}
local scr_x,scr_y = term.getSize()

local revTable = {
    ["("] = ")",
    [")"] = "(",
    ["["] = "]",
    ["]"] = "[",
    ["{"] = "}",
    ["}"] = "{",
    ["<"] = ">",
    [">"] = "<",
    ["/"] = "\\",
    ["\\"] = "/",
}

local strReverse = function(str)
    local output = str:reverse()
    for k,v in pairs(revTable) do
        output = output:gsub(k,v)
    end
    return output
end

oldterm.getCursorPos = term.getCursorPos
term.getCursorPos = function()
    local cx,cy = oldterm.getCursorPos()
    return scr_x-(cx-1),cy
end

oldterm.setCursorPos = term.setCursorPos
term.setCursorPos = function(x,y)
    return oldterm.setCursorPos(scr_x-(x-1), y)
end

oldio.write = io.write
io.write = function(txt)
    local cx,cy = term.getCursorPos()
    oldterm.setCursorPos(cx-(txt:len()-0),cy)
    oldio.write(strReverse(txt:reverse()))
    oldterm.setCursorPos(cx-(txt:len()-0),cy)
end

oldterm.write = term.write
term.write = function(txt)
    local cx,cy = getCursorPos()
    oldterm.setCursorPos(cx-(txt:len()-0),cy)
    oldterm.write(strReverse(txt:reverse()))
    oldterm.setCursorPos(cx-(txt:len()-0),cy)
end

oldterm.blit = term.blit
term.blit = function(text,txt,bg)
    if (#text == #txt) and (#txt == #bg) then
        local cx,cy = term.getCursorPos()
        oldterm.setCursorPos(cx-(text:len()-0),cy)
        oldterm.blit(strReverse(text:reverse()),txt:reverse(),bg:reverse())
        oldterm.setCursorPos(cx-(text:len()-0),cy)
    else
        error("Arguments must be the same length")
    end
end

oldos.pullEventRaw = os.pullEventRaw
os.pullEventRaw = function(event)
    local evt = oldos.pullEventRaw(event)
    if (evt == "mouse_click") or (evt == "mouse_drag") then
        return evt[1], evt[2], scr_x-(evt[3]-1), evt[4]
    elseif evt == "mouse_up" then
        return evt[1],scr_x-(evt[2]-1),evt[3]
    else
        return table.unpack(evt)
    end
end

oldos.pullEvent = os.pullEvent
os.pullEvent = function(event)
    local evt = oldos.pullEvent(event)
    if (evt == "mouse_click") or (evt == "mouse_drag") then
        return evt[1], evt[2], scr_x-(evt[3]-1), evt[4]
    elseif evt == "mouse_up" then
        return evt[1],scr_x-(evt[2]-1),evt[3]
    else
        return table.unpack(evt)
    end
end

local startShell = function(program)
    term.clear()
    term.setCursorPos(1,1)
    dofile(program or "/rom/programs/shell")
end

startShell()