Separating TODO from README.

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+
+TO DO:
+
+- "GO" command
+- "Modularize" command
+- command expansion from keywords, module contents, other buffers, etc.
+- "Recent documents" menu item
+- more emacsisms:
+  - parentheses matching
+  - reindent, reformat text etc.
+  - M-[, M-] to move by paragraphs
+  - smart stuff with whitespace around Return
+  - filter region?
+  - incremental search?
+  - ^K should cut to buffer
+  - command to fill text paragraphs
+- restructure state sensitive code to avoid testing flags all the time
+- finish debugger
+- object browser instead of current stack viewer
+- persistent user state (e.g. window and cursor positions, bindings)
+- make backups when saving
+- check file mtimes at various points
+- interface with RCS/CVS/Perforce ???
+- status bar?
+- better help?
+- don't open second class browser on same module
+
+Details:
+
+- when there's a selection, left/right arrow should go to either
+  end of the selection
+- ^O (on Unix -- open-line) should honor autoindent
+- after paste, show end of pasted text
+- on Windows, should turn short filename to long filename (not only in argv!)
+  (shouldn't this be done -- or undone -- by ntpath.normpath?)
+
+Structural problems:
+
+- too much knowledge in FileList about EditorWindow (for example)
+- Several occurrences of scrollable listbox with title and certain
+  behavior; should create base class to generalize this
+
+======================================================================
+
+Jeff Bauer suggests:
+
+- The editor should show the current line number.
+- Open Module doesn't appear to handle hierarchical packages.
+- Class browser should also allow hierarchical packages.
+- Open and Open Module could benefit from a history,
+  either command line style, or Microsoft recent-file
+  style.
+- Add a Smalltalk-style inspector  (i.e. Tkinspect)
+
+The last suggestion is already a reality, but not yet
+integrated into IDLE.  I use a module called inspector.py,
+that used to be available from python.org(?)  It no longer
+appears to be in the contributed section, and the source
+has no author attribution.
+
+In any case, the code is useful for visually navigating
+an object's attributes, including its container hierarchy.
+
+    >>> from inspector import Tkinspect
+    >>> Tkinspect(None, myObject)
+
+Tkinspect could probably be extended and refined to
+integrate better into IDLE.
+
+======================================================================
+
+Comparison to PTUI
+------------------
+
++ PTUI has a status line
+
++ PTUI's help is better (HTML!)
+
++ PTUI can attach a shell to any module
+
++ PTUI's auto indent is better
+  (understands that "if a: # blah, blah" opens a block)
+
++ IDLE requires 4x backspace to dedent a line
+
++ PTUI has more bells and whistles:
+  open multiple
+  append
+  modularize
+  examine
+  go
+
+? PTUI's fontify is faster but synchronous (and still too slow);
+  does a lousy job if editing affects lines below
+
+- PTUI's shell is worse:
+  no coloring;
+  no editing of multi-line commands;
+  ^P seems to permanently remove some text from the buffer
+
+- PTUI's undo is worse:
+  no redo;
+  one char at a time
+
+- PTUI's GUI is a tad ugly:
+  I don't like the multiple buffers in one window model;
+  I don't like the big buttons at the top of the widow
+
+- PTUI lacks an integrated debugger
+
+- PTUI lacks a class browser
+
+- PTUI lacks many of IDLE's features:
+  - expand word
+  - regular expression search
+  - search files (grep)
+
+======================================================================
+
+Notes after trying to run Grail
+-------------------------------
+
+- Grail does stuff to sys.path based on sys.argv[0]; you must set
+sys.argv[0] to something decent first (it is normally set to the path of
+the idle script).
+
+- Grail must be exec'ed in __main__ because that's imported by some
+other parts of Grail.
+
+- Grail uses a module called History and so does idle :-(
+
+======================================================================