Re: How to delete charcters in a string?

[Dale Stanbrough <dstanbro@bigpond.net.au>]

tmoran@acm.org wrote:

> >  You can't however do...
> >
> >     Old_String := Old_String (1..4) & Old_String (5..Last);
> but of course you can do
>       Old_String(1 .. Last) := Old_String (1..4) & Old_String (5..Last);
> 
> or, if Old_String(Bad_Char_Index) = offensive_character,
>   Old_String(Bad_Char_Index .. Last-1) := Old_String(Bad_Char_Index+1 .. 
>   Last);
>   Last := Last-1;


Yes you can do that, but then you are -not- deleting characters 
from a string, you are deleting characters from a variable
length string abstraction which is contained in two variables 
(Old_String, Last). This is essentially what Ada.Strings.Bounded
does of course.

Dale