screen dump on xterm#286

xtermdump.py

#!/usr/bin/env python

import sys, os, termios, select

def readcell(y, x):
   import sys
   sys.stdout.write("\x1b[;1;%d;%d;%d;%d*y" % (y, x, y, x))
   sys.stdout.flush()
   
   rfd, wfd, xfd = select.select([0], [], [], 2)
   if rfd:
       data = os.read(0, 32)
       return unichr(int(data[5:-2], 16))

def dumpscreen():
    import termios, fcntl, struct
    winsize = fcntl.ioctl(0, termios.TIOCGWINSZ, 'hhhh')
    height, width = struct.unpack('hh', winsize)
    for y in xrange(1, height + 1):
        for x in xrange(1, width + 1):
            yield readcell(y, x)
        yield u"\n"

vdisable = os.fpathconf(0, 'PC_VDISABLE')
backup = termios.tcgetattr(0)
new = termios.tcgetattr(0)
new[3] &= ~(termios.ECHO | termios.ICANON)
new[6][termios.VMIN] = 1 
new[6][termios.VTIME] = 0
termios.tcsetattr(0, termios.TCSANOW, new)
try:
    print u"".join([c for c in dumpscreen()])
finally:
    termios.tcsetattr(0, termios.TCSANOW, backup)