Re: Right way to emty stdin?

[David Favro <lua@...>]

On 02/23/2011 08:21 AM, Gilles Ganault wrote:

> ... the server does end each line with a CRL/LF, ending with an empty
> CR/LF line when done, so I can't figure out why the while loop never
> ends.

io.read() will return an empty string when it encounters the blank line
which indicates the end of the variable-list, rather than returning nil,
which occurs when EOF is reached on input (i.e. the pipe from asterisk (AGI)
or socket (FastAGI) is closed).  So uncomment your line that tests for
empty-string:
        -- if line == "" then break end

You can implement almost any AGI script _without_ using non-blocking or
asynchronous I/O, which I've always found require some C functions rather
than lua's standard I/O library.

-- David