Prompt-tool-kit

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Fixes:
- Fix in bracketed paste. It was not correctly enabled for each prompt.

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New features:
- Implemented bracketed paste mode. (This allows much faster pasting, as well
as pasting without going into paste mode. This makes sure that indentation in
ptpython for instance is kept correctly.)
- Added support for italic output and blink. (For terminals that support it.)
- Added get_horizontal_scroll, get_vertical_scroll and always_hide_cursor
parameters to Window.
- Refactoring of the posix event loop. Better scheduling of all tasks/FDs to
avoid starvation. (Everything should feel more responsive in high CPU
situations.)
- Added get_default_char function to TokenListControl.
- AppendAutoSuggestion now accepts a token parameter.
- Support for ansi color names in styles.
- Accept get_width/get_height parameters in Float.
- Added Output.write_raw and accept 'raw' parameter in
CommandLineInterface.stdout_proxy.
- Better caching of tokens in TokenListControl.
- Add mouse support to TokenListControl.
- Display "Window too small" when the window becomes too small.
- Added 'bell' function to Output.
- Accept weights in HSplit/VSplit.
- Added Registry.remove_binding method to dynamically remove key bindings.
- Added focus_on_click parameter to BufferControl.
- Introduced BufferMapping class as a wrapper around the buffers dictionary.
This one also contains the focus stack.
- Improved 'v' and 'V' key bindings. Allow switching between line and character
selection modes.
- Added layout.highlighters. A new, much faster way to do selection and search
highlighting.
- Make search_state dynamic for key bindings.
- Added 'sentence' option to WordCompleter.
- Cache Document.lines for better performance.
- Implementation of BLOCK selections. (Cut, copy, paste.)
- Accept a 'reserve_space_for_menu' parameter in the shortcuts. (This is an
integer.)
- Support for 24bit true color on vt100 terminals.
- Added CommandLineInterface.on_invalidate event.
- Added __version__ to __init__.py.

Fixes:
- Always show cursor in the 'done' state.
- Allow HSplit to have zero children.
- Bugfix for handling of backslash on Windows with some non-us keyboards.
(Ptpython issue 28.)
- Never render characters outside the visible screen region.
- Fix in WordCompleter. When case insensitive and input contained uppercase.
- Highlight search match when the cursor is at any position on the match. (not
just the beginning.)

Backwards-incompatible changes:
(Most changes will probably not have an impact on external applications.)
- Change in the `Style` API. This allows caching of Attrs in renderer and
faster rendering. (Style now has a get_attrs_for_token instead of a
get_token_to_attributes_dict method.)
- Removed DefaultStyle. Created PygmentsStyle.from_defaults class method instead.
- Removed AbortAction.IGNORE. This was ambiguous.
- Accept 'cli' parameter in 'walk' and 'find_window_for_buffer_name'.
- The focus stack is now stored in BufferMapping.
- ViStateFilter and KeyBindingManager now accept a get_vi_state callable
instead of vi_state itself. (This way a key bindings registry becomes
stateless.)
- HighlightSearchProcessor and HighlightSelectionProcessor became deprecated.
(Use highlighters instead.)

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New features:
- Allow CommandLineInterface to run in any thread.
- Hide cursor while rendering.
- Added add_reader/remove_reader methods to EventLoop.
- Support for 'reverse' style.
- Redraw more lazy, by using invalidate.
- Added show_cursor property to Screen.
- Center or right align text in TokenListControl also when it spans multiple
lines.

Fixes:
- Bugfix in PathCompleter. (Expanduser issue.)
- Fix in signal handler.
- Use utf-8 encoding in Vt100_Output by default.
- Use correct default token in BufferControl.
- Fix in ControlL key binding. Use handle to allow deactivation.

Backwards-incompatible changes:
- Renamed create_default_layout to create_prompt_layout
- Renamed create_default_application to create_prompt_application
- Renamed Layout to Container.
- Renamed CommandLineInterfaces.request_redraw to invalidate.
- Changed the actual value of SEARCH_BUFFER, DEFAULT_BUFFER, SYSTEM_BUFFER and
DUMMY_BUFFER.
- Changed order of keyword arguments of the BufferControl class. "buffer_name"
now comes first.
- Removed old pt(i)python code.

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New features:
- Handling of the insert key in Vi mode.
- Added 'zt' and 'zb' Vi key bindings.
- Added delete key binding for deleting selected text.
- Select word below cursor on double mouse click.
- Added `wrap_lines` option to TokenListControl.
- Added `KeyBindingManager.for_prompt`.

Fixes:
- Fix in rendering output.
- Reset renderer correctly in run_in_terminal.
- Only reset buffer when using `AbortAction.RETRY`.
- Fix in handling of exit (Ctrl-D) key presses.
- Fix in `CompleteEvent`. Correctly set `completion_requested`.

Backwards-incompatible changes:
- Renamed `ValidationError.index` to `ValidationError.cursor_position`.
- Renamed `shortcuts.get_input` to `shortcuts.prompt`.
- Return empty string instead of None in
`Document.current_char`/`char_before_cursor`.

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Fixes:
- Fix in auto suggestion: hide suggestion when accepting input.

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New features:
- Mouse support. (Scrolling and clicking for vt100 terminals. For Windows only
clicking.) Both the autocompletion menus and buffer controls respond to
scrolling and clicking.
- Added auto suggestions. (Like the fish shell.)
- Stdout proxy become thread safe.
- Linewrapping can now be disabled, instead we get horizontal scrolling.
- Line numbering can now be relative. Like the vi 'relativenumber' option.

Fixes:
- Fixed excessive scrolling in Windows.
- Bugfix in search highlighting.
- Copy all words during repetition of Ctrl-W presses.
- The 'libs' folder has been removed.
- Fix in MultiColumnCompletionsMenu: don't create very big columns.

Backwards-incompatible changes:
- Disable search by default in KeyBindingManager.
- Separated abort/exit key bindings. Disabled by default in KeyBindingManager.
- 'Ignore' became the default on_abort action in `Application`.
- 'Ignore' became the default accept_action in `Buffer`.
- The layout processors have been refactored. The API is changed.
- `SwitchableValidator` has been renamed to `ConditionalValidator`.
- `WindowRenderInfo` has several incompatible changes.
- Margins have been refactored completely. Now it's the window that has the
margin instead of `BufferControl`. Is is both much more performant and
flexible.