OpenEuphoria

Re: New User

• Posted by Greg Haberek <g.haberek at comcast.net> Jun 26, 2003
• 668 views

>   function replace (structure findstring, structure replacestring,
>       structure originalstring)
>     atom ix
>     ix=find (findstring, originalstring)
>     return originalstring[1..ix-1] & replacestring &
>       originalstring[ix+length(findstring)..length(originalstring)]
>   end function
>
> again I haven't done any check to see if it exists. But you can see how
> string functions in Euphoria almost write themselves - particularly when
> you know how useful find is.

keep in mind, match() works better when finding chucks of strings in larger
chunks of strings. if i want to find "DEF" in a string "ABCDEFG" i would use
i = match("DEF", "ABCDEFG")  in which   i = 4  as the first position to
which "DEF" matches.  it does get a bit confusing sometimes, but it works
well.

> Ideally I want to do this using variable fonts (I can do it without too
> much difficulty with a fixed font). I suppose that this is possible as I
> saw a function somewhere(the name of which I forget) that returns the
> pixel length of a string so I can keep adding another word until I pass
> the place that I want to stop and then take one word back, chuck in a NL
> and carry on.

the function, if you're using Win32Lib is getTextExtent()  which returns
(off the top of my head)  {max_height, max_width, min_height, min_width,
total_height, total_width}  as for EUwinGUI, i'm sure there is an equivalent
function somewhere. this works on all fonts, fixed or variable widths.

~Greg
g.haberek at comcast.net