[Iup-users] NewLine Problem in IupMultiline

[Muhammad A. H. <ma...@ya...>]

Hi All,

I have made a virtual terminal like app in iuplua (but question refers to iup! not lua), which read & evaluate inputs prompted to user.
I have a problem in the iupmultiline. when enter pressed the vertical cursor goes on the next line instead of "> " line.The cursor should be shown like this "> |". Below is the program:

-- A Virtual Terminal Using IupMultiline
-- Copyright (c) 2013 Muhammad Asif Hussain
 

require( "iuplua" )
i = 0  -- flag for chars count



ml = iup.multiline{
	EXPAND = "YES", 
	BGCOLOR = "255 255 255",
	FGCOLOR = "0 0 0",
	APPENDNEWLINE = "NO"
}



-- mouse buttons callback
function ml:button_cb(but, pressed, x, y, status)
	print(but)
	print(pressed)
	print(x)
	print(y)
	print(status)

	if but==49 then
	   return iup.IGNORE
	else
	   return iup.DEFAULT
	end

end


dlg = iup.dialog{ml; title="My Virtual Terminal", size="HALFxHALF"}
dlg:show()


 ml.insert = " My Virtual Terminal \n"
 ml.insert = "> " -- prompt for input




-- ********************************** check key presses *******************************
function ml:k_any(c)

	-- neglect arrow keys 
	--  
	if c == iup.K_UP or  c == iup.K_LEFT or c == iup.K_RIGHT or c == iup.K_DOWN then
		return iup.IGNORE
	end

  
-- handle input, allow user for current line editing using i flag
  if c == iup.K_CR then
		i = 0
		       COM = ml.linevalue		                                     			
                   Split(COM)
			ml.insert = "\n> "
                   			 						
	 return iup.DEFAULT
	else
       if c ~= iup.K_BS then
	   i = i + 1	
         return iup.DEFAULT;
	  end
      end





-- hanle current line editing
if c == iup.K_BS then 
    	   	if i == 0 then 
		  return iup.IGNORE    	
           else 
		  i = i - 1 
		  return iup.DEFAULT 
   	     end
 end


end -- function ended
-- ****************************************************************



if (iup.MainLoopLevel()==0) then
  iup.MainLoop()
end


-- ***************** SPLIT FUNCTION ********************
function Split(str)

 
tokens = {}
for w in string.gmatch( str, "(%w+)" ) do
    tokens[#tokens+1] = w
end
if str ~= "" then 
	ml.insert = "\n"
end
for i = 1, #tokens do
    print( tokens[i] )
    ml.insert = tokens[i]
end


end


I think newline is built in the iupmultiline when enter pressed. how this could be controlled?



Regards,
Muhammad Asif Hussain

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