Add third_party/pexpect

third_party/pexpect/tests/getch.py

+#!/usr/bin/env python
+'''
+PEXPECT LICENSE
+
+    This license is approved by the OSI and FSF as GPL-compatible.
+        http://opensource.org/licenses/isc-license.txt
+
+    Copyright (c) 2012, Noah Spurrier <noah@noah.org>
+    PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
+    PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
+    COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+'''
+from __future__ import print_function
+import sys, tty, termios
+
+if hasattr(sys.stdin, 'buffer'):
+    # Python 3: we want to read raw bytes
+    stdin = sys.stdin.buffer
+else:
+    stdin = sys.stdin
+
+def main():
+    print('READY', end='\r\n')
+    while True:
+        try:
+            val = ord(stdin.read(1))
+        except KeyboardInterrupt:
+            val = 3
+        print('%d<STOP>' % (val,), end='\r\n')
+        if val == 0:
+            # StopIteration equivalent is ctrl+' ' (\x00, NUL)
+            break
+
+if __name__ == '__main__':
+    fd = sys.stdin.fileno()
+    old_settings = termios.tcgetattr(fd)
+    try:
+        tty.setraw(sys.stdin.fileno())
+        main()
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
+    sys.stdout.flush()