Still missing substantive docs though...

Not finished. Do not merge.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

exec | {cmdlist ...} ?redir? ...

This is a safer form of exec in that redirection meta characters are
no longer searched in cmdlist

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Split out JimExecPipeline() in such a way that
it will be possible to reuse this for TIP424

Signed-off-by: Steve Bennett <steveb@workware.net.au>

- Set jim::lineedit to indicate if line editing is configured
- Ensure that aio tty works even if line editing is disabled
- Skip some tests if line editing is not configured

Signed-off-by: Steve Bennett <steveb@workware.net.au>

To show that it returns the current values, not just the original values

Signed-off-by: Steve Bennett <steveb@workware.net.au>

hurd does not return the path for unix domain sockets
via getsockname()

Signed-off-by: Steve Bennett <steveb@workware.net.au>

socket operation on non-socket gives a different message

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Signed-off-by: Steve Bennett <steveb@workware.net.au>

When the multi-level break/continue support was added in
1b151f81

 it reused returnLevel,
but this interferred with the return level returned by try/catch.
Use a separate variable for the break/continue level.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

And allow -DJIM_TINY to disable optimisation, and
use that with bootstrap jimsh.

Fixes #273

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Need strings.h for strcasecmp

(Although I don't really think it's necessary to support lower case
versions of signal names. This will probably change).

Fixes #270

Signed-off-by: Steve Bennett <steveb@workware.net.au>

If pkg-config is not available

Fixes #272

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This test can be at bit flaky on slower machines
(perhaps running under a VM or qemu).

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Mostly for update bootstrap jimsh

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Without this, readdir() doesn't work properly on some 32 bit platforms

Signed-off-by: Steve Bennett <steveb@workware.net.au>

And allow current source file to be set

Fixes: #268

Signed-off-by: Steve Bennett <steveb@workware.net.au>

The checks for -ipv6, -async broke 'socket -commands'

Signed-off-by: Steve Bennett <steveb@workware.net.au>

In case socket pty, interp are not available

Signed-off-by: Steve Bennett <steveb@workware.net.au>

set a 5

proc b {} {&a} {
	incr a
}

b

Now a is 6 because b captured a by reference instead of by value

Signed-off-by: Steve Bennett <steveb@workware.net.au>

To add new commands that now support -help, -commands

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This means we get -commands and usage via -help

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This means we get -commands and usage via -help

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This means we get -commands and usage via -help

And update dict2.test for minor difference in usage

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This means we get -commands and usage via -help

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This means we get -commands and usage via -help

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Add support for modulo maxarg count.  If maxargs is (e.g.) -2, then a
multiple of 2 args is expected.

Also expose Jim_SubCmdArgError() to make it easy to add additional
arg validation but still have subcmd report the usage.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Signed-off-by: Steve Bennett <steveb@workware.net.au>

And add a default implementation of tcl::stdhint to add
hinting for some built-in commands.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

To open, socket and accept
Also document aio getfd

Signed-off-by: Steve Bennett <steveb@workware.net.au>

And also fix a minor bug that if unable to format the socket address
the file descriptor would be left open.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Signed-off-by: Steve Bennett <steveb@workware.net.au>

socket ?-noclose? ...
open filename ?-noclose? ...

Normally Jim will set O_CLOEXEC on all files and sockets that are opened
however sometimes it is desirable to keep file descriptors open for
child processes. The -noclose flags does this (on supported platforms).

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This changes especially makes buffered I/O work
with non-blocking channels.

- separate read and write buffering
- support for timeout on blocking read
- read/write on same channel in event loop with buffering
- read buffer is the same across read, gets, copyto
- autoflush non-blocking writes via event loop
- copyto can now copy to any filehandle-like command
- add some copyto tests

Signed-off-by: Steve Bennett <steveb@workware.net.au>

Signed-off-by: Steve Bennett <steveb@workware.net.au>

This is simpler now that we can write to a non-blocking socket
even if it is "full".

Signed-off-by: Steve Bennett <steveb@workware.net.au>