Roll third_party/pexpect 509:533

third_party/pexpect/screen.py

 """This implements a virtual screen. This is used to support ANSI terminal
 emulation. The screen representation and state is implemented in this class.
 Most of the methods are inspired by ANSI screen control codes. The ANSI class
 extends this class to add parsing of ANSI escape codes.
 
-$Id: screen.py 486 2007-07-13 01:04:16Z noah $
+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.
+
 """
 
 import copy
 
 NUL = 0    # Fill character; ignored on input.
 ENQ = 5    # Transmit answerback message.
 BEL = 7    # Ring the bell.
 BS  = 8    # Move cursor left.
 HT  = 9    # Move cursor to next tab stop.
 LF = 10    # Line feed.
@@ skipping 135 matching lines @@
 
     def insert_abs (self, r, c, ch):
 
         """This inserts a character at (r,c). Everything under
         and to the right is shifted right one character.
         The last character of the line is lost.
         """
 
         r = constrain (r, 1, self.rows)
         c = constrain (c, 1, self.cols)
-        for ci in range (self.cols, c, -1): 
+        for ci in range (self.cols, c, -1):
             self.put_abs (r,ci, self.get_abs(r,ci-1))
         self.put_abs (r,c,ch)
 
     def insert (self, ch):
 
         self.insert_abs (self.cur_r, self.cur_c, ch)
 
     def get_abs (self, r, c):
-    
+
         r = constrain (r, 1, self.rows)
         c = constrain (c, 1, self.cols)
         return self.w[r-1][c-1]
 
     def get (self):
 
         self.get_abs (self.cur_r, self.cur_c)
 
     def get_region (self, rs,cs, re,ce):
 
@@ skipping 189 matching lines @@
 
         """Clears all tabs."""
 
         pass
 
 #        Insert line             Esc [ Pn L
 #        Delete line             Esc [ Pn M
 #        Delete character        Esc [ Pn P
 #        Scrolling region        Esc [ Pn(top);Pn(bot) r