Re: Fill string with multiple lines from standard_input

[Stephen Leake <stephen.a.leake.1@gsfc.nasa.gov>]

"Vincent Smeets" <No@Spam.org> writes:

> I am working on a remote site and I want all my e-mail to be encrypted and
> forwarded. I am writing a program that will create a new mail with an
> attachment that contains the encrypted mail (with PGP).

Ok, that makes sense. Most likely a stream-based approach will be
best; just leave everything in stream buffers.

> <snip description of mail processing system>

> As a second release, I want to rewrite my program to work line by line. This
> way, I will need to preserve more state in between the processing of the
> lines, but this will too need the <CR>s as they are in the input stream!

What is the advantage of working "line by line"? If it is to reduce
the memory usage, then a better approach is to define a stream buffer
size, and handle the end-of-buffer condition appropriately. "lines"
don't mean much in this kind of application; in fact, as you have
seen, using Ada.Text_IO to read lines actually breaks the application.

-- 
-- Stephe