Merged revisions 60094-60123 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

*** NOTE ***
I haven't merged the files in Doc/c-api/. I got too many conflicts. Georg,
please split them manually.

........
  r60095 | andrew.kuchling | 2008-01-19 21:12:04 +0100 (Sat, 19 Jan 2008) | 2 lines

  Bug 1277: make Maildir use the user-provided factory instead of hard-wiring MaildirMessage.
  2.5.2 bugfix candidate.
........
  r60097 | georg.brandl | 2008-01-19 21:22:13 +0100 (Sat, 19 Jan 2008) | 4 lines

  #1663329: add os.closerange() to close a range of fds,
  ignoring errors, and use this in subprocess to speed up
  subprocess creation in close_fds mode. Patch by Mike Klaas.
........
  r60099 | georg.brandl | 2008-01-19 21:40:24 +0100 (Sat, 19 Jan 2008) | 2 lines

  #1411695: clarify behavior of xml.sax.utils.[un]escape.
........
  r60101 | andrew.kuchling | 2008-01-19 21:47:59 +0100 (Sat, 19 Jan 2008) | 7 lines

  Patch #1019808 from Federico Schwindt: Return correct socket error when
  a default timeout has been set, by using getsockopt() to get the error
  condition (instead of trying another connect() call, which seems to be
  a Linuxism).

  2.5 bugfix candidate, assuming no one reports any problems with this change.
........
  r60102 | gregory.p.smith | 2008-01-19 21:49:02 +0100 (Sat, 19 Jan 2008) | 3 lines

  fix comment typos, use not arg instead of arg == "", add test coverage
  for inside of the final if needquotes: within subprocess.list2cmdline().
........
  r60103 | georg.brandl | 2008-01-19 21:53:07 +0100 (Sat, 19 Jan 2008) | 2 lines

  #1509: fix sqlite3 docstrings and docs w.r.t. cursor.fetchXXX methods.
........
  r60104 | gregory.p.smith | 2008-01-19 21:57:59 +0100 (Sat, 19 Jan 2008) | 6 lines

  Fixes issue1336 - a race condition could occur when forking if the gc
  kicked in during the critical section.  solution: disable gc during
  that section.  Patch contributed by jpa and updated by me to cover the
  race condition still existing what therve from twistedmatrix pointed
  out (already seen and fixed in twisted's own subprocess code).
........
  r60105 | gregory.p.smith | 2008-01-19 22:00:37 +0100 (Sat, 19 Jan 2008) | 2 lines

  note about r60104
........
  r60106 | andrew.kuchling | 2008-01-19 22:00:38 +0100 (Sat, 19 Jan 2008) | 1 line

  Bug 1296: restore text describing OptionGroup
........
  r60109 | georg.brandl | 2008-01-19 23:08:21 +0100 (Sat, 19 Jan 2008) | 2 lines

  Split the monstrous C API manual files in smaller parts.
........
  r60110 | georg.brandl | 2008-01-19 23:14:27 +0100 (Sat, 19 Jan 2008) | 2 lines

  Missed one big file to split up.
........
  r60111 | gregory.p.smith | 2008-01-19 23:23:56 +0100 (Sat, 19 Jan 2008) | 12 lines

  Undo an unnecessary else: and indentation that r60104 added.

  try:
    ...
  except:
    ...
    raise
  else:
    ...

  the else: is unecessary due to the blind except: with a raise.
........
  r60115 | gregory.p.smith | 2008-01-19 23:49:37 +0100 (Sat, 19 Jan 2008) | 3 lines

  Fix issue 1300: Quote command line arguments that contain a '|' character in
  subprocess.list2cmdline (windows).
........
  r60116 | gregory.p.smith | 2008-01-20 00:10:52 +0100 (Sun, 20 Jan 2008) | 3 lines

  Fixes/Accepts Patch for issue1189216 - Work properly with archives
  that have file headers past the 2**31 byte boundary.
........
  r60119 | andrew.kuchling | 2008-01-20 01:00:38 +0100 (Sun, 20 Jan 2008) | 3 lines

  Patch #1048820 from Stefan Wehr: add insert-mode editing to Textbox.
  Fix an off-by-one error I noticed.
........
  r60120 | andrew.kuchling | 2008-01-20 01:12:19 +0100 (Sun, 20 Jan 2008) | 1 line

  Add an interactive test script for exercising curses
........
  r60121 | gregory.p.smith | 2008-01-20 02:21:03 +0100 (Sun, 20 Jan 2008) | 7 lines

  Fix zipfile decryption.  The check for validity only worked on one
  type of encrypted zip files.  Files using extended local headers
  needed to compare the check byte against different values.  (according
  to reading the infozip unzip crypt.c source code)

  Fixes issue1003.
........
  r60122 | gregory.p.smith | 2008-01-20 02:26:04 +0100 (Sun, 20 Jan 2008) | 2 lines

  note for r60121
........
  r60123 | gregory.p.smith | 2008-01-20 02:32:00 +0100 (Sun, 20 Jan 2008) | 4 lines

  Document that zipfile decryption is insanely slow and fix a typo and
  blatant lie in a docstring (it is not useful for security regardless of
  how you spell it).
........

1 files changed, 25 insertions, 11 deletions

diff --git a/Lib/curses/textpad.py b/Lib/curses/textpad.py
index 24a964a..a05b82b 100644
--- a/Lib/curses/textpad.py
+++ b/Lib/curses/textpad.py
@@ -39,8 +39,9 @@ class Textbox:
     KEY_LEFT = Ctrl-B, KEY_RIGHT = Ctrl-F, KEY_UP = Ctrl-P, KEY_DOWN = Ctrl-N
     KEY_BACKSPACE = Ctrl-h
     """
-    def __init__(self, win):
+    def __init__(self, win, insert_mode=False):
         self.win = win
+        self.insert_mode = insert_mode
         (self.maxy, self.maxx) = win.getmaxyx()
         self.maxy = self.maxy - 1
         self.maxx = self.maxx - 1
@@ -49,9 +50,10 @@ class Textbox:
         win.keypad(1)
 
     def _end_of_line(self, y):
-        "Go to the location of the first blank on the given line."
+        """Go to the location of the first blank on the given line,
+        returning the index of the last non-blank character."""
         last = self.maxx
-        while 1:
+        while True:
             if ascii.ascii(self.win.inch(y, last)) != ascii.SP:
                 last = min(self.maxx, last+1)
                 break
@@ -60,19 +62,31 @@ class Textbox:
             last = last - 1
         return last
 
+    def _insert_printable_char(self, ch):
+        (y, x) = self.win.getyx()
+        if y < self.maxy or x < self.maxx:
+            if self.insert_mode:
+                oldch = self.win.inch()
+            # 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
+            if self.insert_mode:
+                (backy, backx) = self.win.getyx()
+                if ascii.isprint(oldch):
+                    self._insert_printable_char(oldch)
+                    self.win.move(backy, backx)
+
     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
+                self._insert_printable_char(ch)
         elif ch == ascii.SOH:                           # ^a
             self.win.move(y, 0)
         elif ch in (ascii.STX,curses.KEY_LEFT, ascii.BS,curses.KEY_BACKSPACE):
@@ -139,7 +153,7 @@ class Textbox:
             if stop == 0 and self.stripspaces:
                 continue
             for x in range(self.maxx+1):
-                if self.stripspaces and x == stop:
+                if self.stripspaces and x > stop:
                     break
                 result = result + chr(ascii.ascii(self.win.inch(y, x)))
             if self.maxy > 0: