OpenEuphoria

1. Fw: Two questions

• Posted by rforno at tutopia.com Sep 05, 2001
• 570 views

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I am resending this mail, since apparently it did not reach some people in
the list, including myself.
----- Original Message -----
From: "Ricardo M. Forno" <rforno at tutopia.com>
To: <EUforum at topica.com>
Subject: Two questions


> Rob:
> I find slightly annoying the need to insert a whitespace character in a
file
> that has to be read by means of get(), because to create such a file you
> would need two instructions for each object, namely:
>
> print(file, object)
> puts(file, "\n") (or puts(file, " ") )
>
> Maybe there is an alternative to this that I don't know.
>
> Another subject:
> I'm having problems with the function check_break(). When I use it in the
> attached stripped down version of one of my programs, and I type ^C, no
> message is printed in spite that ^C appears on the screen. Moreover, if I
> type ^2 (that I don't know why it behaves similarly to ^C), two ^C are
> printed on the screen the first time, and the message appears the second
> time. Then, while typing ^2, it cycles between these two outputs.
>
>

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include get.e
include file.e

function Get_key()
--Waits for a keypress
    integer c
    while 1 do
	c = get_key()
	if c != - 1 then
	    exit
	end if
    end while
    return c
end function

procedure entry()
    sequence input_line
    integer c
    allow_break(0)
    while 1 do --Until exit
	input_line = {} --Initialize reserve of input characters
	if check_break() then --Advise operator
	    printf(1, "%s\n", {"To quit, press return"})
	end if
	c = Get_key() --Get the first keypress
	if c = 13 then --If empty input line
	    exit
	end if
    end while
end procedure

entry() --Execute main procedure

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