Re: [LINUX5250] word wrap

[James Rich <james@xxxxxxxxxxx>]

On Fri, 1 Apr 2005, phil wrote:

> James Rich wrote:
> > I've run into a problem implementing word wrap.  When a word doesn't fit at 
> > the end of a field, I need to put it on the next field and pad with blanks. 
> > However, I need to distinguish between blanks I use for padding and those 
> > blanks the user entered.  My best idea so far is to use special characters 
> > and then modify the functions for display to replace them with blanks. 
> > Initially I have chosen to use hex FE since my charts show that as a 
> > non-existent character in both EBCDIC and ASCII.  Interestingly, it still 
> > maps to a character.  I think this idea is the way to go (it is working) 
> > but I need a non-blank character that can't possibly be a valid display 
> > character.  Any suggestions?
>
> How about 0x00?
> I don't understand.
> Assuming this is driven by keyboard interrupt, If the last char a user 
> entered on line 1 is space, you don't need to word wrap. just
> position the cursor on the line 2.  If the last char was non space,
> just grab the last word.

It doesn't always come from the keyboard.  Nor can you only worry about 
the case where a user is typing at the end of a line.  What about if the 
user is inserting text somewhere else in the line?  Or deleting text?  The 
text that is sent from the iSeries is not wrapped, the emulator has to 
handle that itself.  All these cases except the first (using typing at end 
of line) are now handled.

James Rich

It's not the software that's free; it's you.
        - billyskank on Groklaw