def do_command(self, ch):
"Process a single editing command."
(y, x) = self.win.getyx()
self.lastcmd = ch
if ascii.isprint(ch):
if y == self.maxy or x < self.maxx:
self.win.addch(ch)
elif ch == ascii.SOH: # ^a
self.win.move(y, 0)
elif ch in (ascii.STX,curses.KEY_LEFT, ascii.BS,curses.KEY_BACKSPACE):
if x > 0:
self.win.move(y, x-1)
elif y == 0:
pass
elif self.stripspaces:
self.win.move(y-1, self._end_of_line(y-1))
else:
self.win.move(y-1, self.maxx)
if ch in (ascii.BS, curses.KEY_BACKSPACE):
self.win.delch()
elif ch == ascii.EOT or ch == ascii.LF: # ^d or line feed
return 0
#self.win.delch()
elif ch == ascii.ENQ: # ^e
if self.stripspaces:
self.win.move(y, self._end_of_line(y))
else:
self.win.move(y, self.maxx)
elif ch in (ascii.ACK, curses.KEY_RIGHT): # ^f
if x < self.maxx:
self.win.move(y, x+1)
else:
self.win.move(y+1, 0)
#elif ch == ascii.VT: # ^k
# if x == 0 and self._end_of_line(y) == 0:
# self.win.deleteln()
# else:
# self.win.clrtoeol()
#elif ch == ascii.FF: # ^l
# self.win.refresh()
#elif ch in (ascii.SO, curses.KEY_DOWN): # ^n
# if y < self.maxy:
# self.win.move(y+1, x)
# if x > self._end_of_line(y+1):
# self.win.move(y+1, self._end_of_line(y+1))
#elif ch == ascii.SI: # ^o
# self.win.insertln()
#elif ch in (ascii.DLE, curses.KEY_UP): # ^p
# if y > 0:
# self.win.move(y-1, x)
# if x > self._end_of_line(y-1):
# self.win.move(y-1, self._end_of_line(y-1))
if x == 0 and chr(ascii.ascii(ch)) in CommandInterpreter.oneoff:
return 0
return 1
def do_command(self, ch):
"Process a single editing command."
(y, x) = self.win.getyx()
self.lastcmd = ch
if ascii.isprint(ch):
if y < self.maxy or x < self.maxx:
# The try-catch ignores the error we trigger from some curses
# versions by trying to write into the lowest-rightmost spot
# in the window.
try:
self.win.addch(ch)
except curses.error:
pass
elif ch == ascii.SOH: # ^a
self.win.move(y, 0)
elif ch in (ascii.STX, curses.KEY_LEFT, ascii.BS,
curses.KEY_BACKSPACE):
if x > 0:
self.win.move(y, x - 1)
elif y == 0:
pass
elif self.stripspaces:
self.win.move(y - 1, self._end_of_line(y - 1))
else:
self.win.move(y - 1, self.maxx)
if ch in (ascii.BS, curses.KEY_BACKSPACE):
self.win.delch()
elif ch == ascii.EOT: # ^d
self.win.delch()
elif ch == ascii.ENQ: # ^e
if self.stripspaces:
self.win.move(y, self._end_of_line(y))
else:
self.win.move(y, self.maxx)
elif ch in (ascii.ACK, curses.KEY_RIGHT): # ^f
if x < self.maxx:
self.win.move(y, x + 1)
elif y == self.maxy:
pass
else:
self.win.move(y + 1, 0)
elif ch == ascii.BEL: # ^g
return 0
elif ch == ascii.NL: # ^j
if self.maxy == 0:
return 0
elif y < self.maxy:
self.win.move(y + 1, 0)
elif ch == ascii.VT: # ^k
if x == 0 and self._end_of_line(y) == 0:
self.win.deleteln()
else:
# first undo the effect of self._end_of_line
self.win.move(y, x)
self.win.clrtoeol()
elif ch == ascii.FF: # ^l
self.win.refresh()
elif ch in (ascii.SO, curses.KEY_DOWN): # ^n
if y < self.maxy:
self.win.move(y + 1, x)
if x > self._end_of_line(y + 1):
self.win.move(y + 1, self._end_of_line(y + 1))
elif ch == ascii.SI: # ^o
self.win.insertln()
elif ch in (ascii.DLE, curses.KEY_UP): # ^p
if y > 0:
self.win.move(y - 1, x)
if x > self._end_of_line(y - 1):
self.win.move(y - 1, self._end_of_line(y - 1))
return 1
def do_command(self, ch):
"Process a single editing command."
(y, x) = self.win.getyx()
self.lastcmd = ch
if ascii.isprint(ch):
if y < self.maxy or x < self.maxx:
# The try-catch ignores the error we trigger from some curses
# versions by trying to write into the lowest-rightmost spot
# in the self.window.
try:
self.win.addch(ch)
except ERR:
pass
elif ch == ascii.SOH: # ^a
self.win.move(y, 0)
elif ch in (ascii.STX,curses.KEY_LEFT, ascii.BS,curses.KEY_BACKSPACE):
if x > 0:
self.win.move(y, x-1)
elif y == 0:
pass
elif self.stripspaces:
self.win.move(y-1, self.firstblank(y-1))
else:
self.win.move(y-1, self.maxx)
if ch in (ascii.BS, curses.KEY_BACKSPACE):
self.win.delch()
elif ch == ascii.EOT: # ^d
self.win.delch()
elif ch == ascii.ENQ: # ^e
if self.stripspaces:
self.win.move(y, self.firstblank(y))
else:
self.win.move(y, self.maxx)
elif ch in (ascii.ACK, curses.KEY_RIGHT): # ^f
if x < self.maxx:
self.win.move(y, x+1)
elif y == self.maxy:
pass
else:
self.win.move(y+1, 0)
elif ch == ascii.BEL: # ^g
return 0
elif ch == ascii.NL: # ^j
if self.maxy == 0:
return 0
elif y < self.maxy:
self.win.move(y+1, 0)
elif ch == ascii.VT: # ^k
if x == 0 and self.firstblank(y) == 0:
self.win.deleteln()
else:
self.win.clrtoeol()
elif ch == ascii.FF: # ^l
self.win.refresh()
elif ch in (ascii.SO, curses.KEY_DOWN): # ^n
if y < self.maxy:
self.win.move(y+1, x)
elif ch == ascii.SI: # ^o
self.win.insertln()
elif ch in (ascii.DLE, curses.KEY_UP): # ^p
if y > 0:
self.win.move(y-1, x)
return 1
"""Simple textbox editing widget with Emacs-like keybindings."""
def do_command(self, ch):
"Process a single editing command."
(y, x) = self.win.getyx()
self.lastcmd = ch
if ascii.isprint(ch):
if y < self.maxy or x < self.maxx:
# The try-catch ignores the error we trigger from some curses
# versions by trying to write into the lowest-rightmost spot
# in the window.
try:
self.text_insert(y, x, ch)
self.win.addstr(y, 0, ''.join([chr(ascii.ascii(ch)) for ch in self.text[y]]))
self.win.move(y, x+1)
except curses.error:
pass
elif ch == ascii.SOH: # ^a
self.win.move(y, 0)
elif ch in (ascii.STX,curses.KEY_LEFT, ascii.BS, curses.KEY_BACKSPACE):
if x > 0:
self.win.move(y, x-1)
elif y == 0:
pass
elif self.stripspaces:
self.win.move(y-1, self._end_of_line(y-1))
else:
self.win.move(y-1, self.maxx)
if ch in (ascii.BS, curses.KEY_BACKSPACE):
self.win.delch()
y, x = self.win.getyx()
self.text_delete(y, x)
elif ch == ascii.EOT: # ^d
self.win.delch()
self.text_delete(y, x)
elif ch == ascii.ENQ: # ^e
if self.stripspaces:
self.win.move(y, self._end_of_line(y))
else:
self.win.move(y, self.maxx)
elif ch in (ascii.ACK, curses.KEY_RIGHT): # ^f
if x < self.maxx:
self.win.move(y, x+1)
elif y == self.maxy:
pass
else:
self.win.move(y+1, 0)
elif ch == ascii.BEL: # ^g
return True
elif ch in (ascii.NL, ascii.CR): # ^j ^m
if self.maxy == 0:
return True
elif y < self.maxy:
self.win.move(y+1, 0)
elif ch == ascii.VT: # ^k
if x == 0 and self._end_of_line(y) == 0:
self.win.deleteln()
self.text_delete_line(y)
else:
# first undo the effect of self._end_of_line
self.win.move(y, x)
self.win.clrtoeol()
self.text_delete_line(y, x)
elif ch == ascii.FF: # ^l
self.win.refresh()
elif ch in (ascii.SO, curses.KEY_DOWN): # ^n
if y < self.maxy:
self.win.move(y+1, x)
if x > self._end_of_line(y+1):
self.win.move(y+1, self._end_of_line(y+1))
elif ch == ascii.SI: # ^o
self.win.insertln()
self.text_insert_line(y)
elif ch in (ascii.DLE, curses.KEY_UP): # ^p
if y > 0:
self.win.move(y-1, x)
if x > self._end_of_line(y-1):
self.win.move(y-1, self._end_of_line(y-1))
return False
