06-08-2012
Quote:
Originally Posted by
methyl
As you will all know I'm a bit of a Posix cynic (though I support the Posix ideal) mainly because I come across too many non-compliant situations. I have lost track of the "current Posix standard" (despite @jlliagre's best efforts).
Hehehe. Understandable. You may enjoy
standards
I try to keep up with POSIX enough to know when I'm using an extension, but that's about it. Most of the time, when I dig into it, it's a result of investigating some oddity in one of this forum's threads.
Quote:
Originally Posted by
methyl
Not sure if that quote in context because this is nothing to do with Escape Sequences (like for Printer control). If it is, then IMHO that Posix standard needs urgent correction. It's universally expected in unix syntax that a character which is part of the syntax of a command must be escaped if it is to be considered as data.
As far as POSIX tr is concerned, the brackets are not special so they do not require a backslash escape sequence. Real world implementations probably drop the backslash and treat the following square-bracket literally, as your implementation is doing (although in your case it's by necessity since it's trying to accomodate the historical syntax), but doing so isn't required by POSIX. A compliant implementation of tr could choose to abort with an error when it encounters
\[ or
\].
Regards,
Alister
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LEARN ABOUT DEBIAN
sockets.socketpair
Sockets.socketPair(3kaya) Kaya module reference Sockets.socketPair(3kaya)
NAME
Sockets::socketPair - Create a joined pair of sockets
SYNOPSIS
Pair<Socket, Socket> socketPair( )
DESCRIPTION
This function creates a pair of sockets that can be used for bi-directional communication. The most common use of this is for setting up
communications between a process and its Posix.fork(3kaya) ()ed child - each process closes one of the sockets after the fork.
sockets = socketPair();
pid = fork();
if (pid == 0) {
// child process
close(sockets.fst);
// do something
} else {
close(sockets.snd);
// do something else
}
AUTHORS
Kaya standard library by Edwin Brady, Chris Morris and others (kaya@kayalang.org). For further information see http://kayalang.org/
LICENSE
The Kaya standard library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
License (version 2.1 or any later version) as published by the Free Software Foundation.
RELATED
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Kaya October 2012 Sockets.socketPair(3kaya)