Adding termios support.

* Makefile (termios.o): New object file.

* lib.c (init): Call termios_init.

* lisplib.c (termios_set_entries, termios_instantiate): New
functions.
(lisplib_init): Register new functions in autoload table.

* share/txr/stdlib/termios.tl: New file.

* termios.c, termios.h: New files.

* txr.1: Documented termios.

1 files changed, 78 insertions, 0 deletions

diff --git a/share/txr/stdlib/termios.tl b/share/txr/stdlib/termios.tl
new file mode 100644
index 00000000..84a6d006
--- /dev/null
+++ b/share/txr/stdlib/termios.tl
@@ -0,0 +1,78 @@
+;; Copyright 2016
+;; Kaz Kylheku <kaz@kylheku.com>
+;; Vancouver, Canada
+;; All rights reserved.
+;;
+;; Redistribution of this software in source and binary forms, with or without
+;; modification, is permitted provided that the following two conditions are met.
+;;
+;; Use of this software in any manner constitutes agreement with the disclaimer
+;; which follows the two conditions.
+;;
+;; 1. Redistributions of source code must retain the above copyright
+;;    notice, this list of conditions and the following disclaimer.
+;; 2. Redistributions in binary form must reproduce the above copyright
+;;    notice, this list of conditions and the following disclaimer in
+;;    the documentation and/or other materials provided with the
+;;    distribution.
+;;
+;; THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+;; WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL THE
+;; COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DAMAGES, HOWEVER CAUSED,
+;; AND UNDER ANY THEORY OF LIABILITY, ARISING IN ANY WAY OUT OF THE USE OF THIS
+;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+(defmeth termios set-iflags (tio . values)
+  (set tio.iflag (logior tio.iflag . values)))
+
+(defmeth termios set-oflags (tio . values)
+  (set tio.oflag (logior tio.oflag . values)))
+
+(defmeth termios set-cflags (tio . values)
+  (set tio.cflag (logior tio.cflag . values)))
+
+(defmeth termios set-lflags (tio . values)
+  (set tio.lflag (logior tio.lflag . values)))
+
+(defmeth termios clear-iflags (tio . values)
+  (set tio.iflag (logand tio.iflag (lognot (logior . values)))))
+
+(defmeth termios clear-oflags (tio . values)
+  (set tio.oflag (logand tio.oflag (lognot (logior . values)))))
+
+(defmeth termios clear-cflags (tio . values)
+  (set tio.cflag (logand tio.cflag (lognot (logior . values)))))
+
+(defmeth termios clear-lflags (tio . values)
+  (set tio.lflag (logand tio.lflag (lognot (logior . values)))))
+
+(defmeth termios go-raw (tio)
+  tio.(clear-iflags ignbrk brkint parmrk istrip inlcr igncr icrnl ixon)
+  tio.(clear-oflags opost)
+  tio.(clear-cflags csize parenb)
+  tio.(clear-lflags echo echonl icanon isig)
+  (if (boundp 'iexten)
+    tio.(clear-lflags iexten))
+  tio.(set-cflags cs8)
+  (set tio.[cc vmin] 1)
+  (set tio.[cc vtime] 0))
+
+(defmeth termios go-cbreak (tio)
+  tio.(clear-iflags icrnl)
+  tio.(clear-lflags icanon)
+  tio.(set-lfags isig)
+  (set tio.[cc vmin] 1)
+  (set tio.[cc vtime] 0))
+
+(defmeth termios string-encode (tio)
+  (let ((*print-base* 16))
+    tio.(sys:encode-speeds)
+    (downcase-str `@{tio.iflag}:@{tio.oflag}:@{tio.cflag}:@{tio.lflag}:\
+                  @{(list-vec tio.cc) ":"}`)))
+
+(defmeth termios string-decode (tio string)
+  (let ((vals (mapcar (op int-str @1 16) (split-str string ":"))))
+    (lset tio.iflag tio.oflag tio.cflag tio.lflag vals)
+    (set tio.cc (vec-list (cddddr vals)))
+    tio.(sys:decode-speeds)))