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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:35:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:35:20 +0000
commite106bf94eff07d9a59771d9ccc4406421e18ab64 (patch)
treeedb6545500e39df9c67aa918a6125bffc8ec1aee /src/prompt_toolkit/key_binding
parentInitial commit. (diff)
downloadprompt-toolkit-e106bf94eff07d9a59771d9ccc4406421e18ab64.tar.xz
prompt-toolkit-e106bf94eff07d9a59771d9ccc4406421e18ab64.zip
Adding upstream version 3.0.36.upstream/3.0.36upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/prompt_toolkit/key_binding')
-rw-r--r--src/prompt_toolkit/key_binding/__init__.py20
-rw-r--r--src/prompt_toolkit/key_binding/bindings/__init__.py0
-rw-r--r--src/prompt_toolkit/key_binding/bindings/auto_suggest.py63
-rw-r--r--src/prompt_toolkit/key_binding/bindings/basic.py253
-rw-r--r--src/prompt_toolkit/key_binding/bindings/completion.py203
-rw-r--r--src/prompt_toolkit/key_binding/bindings/cpr.py28
-rw-r--r--src/prompt_toolkit/key_binding/bindings/emacs.py557
-rw-r--r--src/prompt_toolkit/key_binding/bindings/focus.py24
-rw-r--r--src/prompt_toolkit/key_binding/bindings/mouse.py347
-rw-r--r--src/prompt_toolkit/key_binding/bindings/named_commands.py687
-rw-r--r--src/prompt_toolkit/key_binding/bindings/open_in_editor.py49
-rw-r--r--src/prompt_toolkit/key_binding/bindings/page_navigation.py82
-rw-r--r--src/prompt_toolkit/key_binding/bindings/scroll.py187
-rw-r--r--src/prompt_toolkit/key_binding/bindings/search.py93
-rw-r--r--src/prompt_toolkit/key_binding/bindings/vi.py2221
-rw-r--r--src/prompt_toolkit/key_binding/defaults.py60
-rw-r--r--src/prompt_toolkit/key_binding/digraphs.py1377
-rw-r--r--src/prompt_toolkit/key_binding/emacs_state.py36
-rw-r--r--src/prompt_toolkit/key_binding/key_bindings.py672
-rw-r--r--src/prompt_toolkit/key_binding/key_processor.py528
-rw-r--r--src/prompt_toolkit/key_binding/vi_state.py107
21 files changed, 7594 insertions, 0 deletions
diff --git a/src/prompt_toolkit/key_binding/__init__.py b/src/prompt_toolkit/key_binding/__init__.py
new file mode 100644
index 0000000..be10536
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/__init__.py
@@ -0,0 +1,20 @@
+from .key_bindings import (
+ ConditionalKeyBindings,
+ DynamicKeyBindings,
+ KeyBindings,
+ KeyBindingsBase,
+ merge_key_bindings,
+)
+from .key_processor import KeyPress, KeyPressEvent
+
+__all__ = [
+ # key_bindings.
+ "ConditionalKeyBindings",
+ "DynamicKeyBindings",
+ "KeyBindings",
+ "KeyBindingsBase",
+ "merge_key_bindings",
+ # key_processor
+ "KeyPress",
+ "KeyPressEvent",
+]
diff --git a/src/prompt_toolkit/key_binding/bindings/__init__.py b/src/prompt_toolkit/key_binding/bindings/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/__init__.py
diff --git a/src/prompt_toolkit/key_binding/bindings/auto_suggest.py b/src/prompt_toolkit/key_binding/bindings/auto_suggest.py
new file mode 100644
index 0000000..c016c06
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/auto_suggest.py
@@ -0,0 +1,63 @@
+"""
+Key bindings for auto suggestion (for fish-style auto suggestion).
+"""
+import re
+
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.filters import Condition, emacs_mode
+from prompt_toolkit.key_binding.key_bindings import KeyBindings
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+
+__all__ = [
+ "load_auto_suggest_bindings",
+]
+
+E = KeyPressEvent
+
+
+def load_auto_suggest_bindings() -> KeyBindings:
+ """
+ Key bindings for accepting auto suggestion text.
+
+ (This has to come after the Vi bindings, because they also have an
+ implementation for the "right arrow", but we really want the suggestion
+ binding when a suggestion is available.)
+ """
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ @Condition
+ def suggestion_available() -> bool:
+ app = get_app()
+ return (
+ app.current_buffer.suggestion is not None
+ and len(app.current_buffer.suggestion.text) > 0
+ and app.current_buffer.document.is_cursor_at_the_end
+ )
+
+ @handle("c-f", filter=suggestion_available)
+ @handle("c-e", filter=suggestion_available)
+ @handle("right", filter=suggestion_available)
+ def _accept(event: E) -> None:
+ """
+ Accept suggestion.
+ """
+ b = event.current_buffer
+ suggestion = b.suggestion
+
+ if suggestion:
+ b.insert_text(suggestion.text)
+
+ @handle("escape", "f", filter=suggestion_available & emacs_mode)
+ def _fill(event: E) -> None:
+ """
+ Fill partial suggestion.
+ """
+ b = event.current_buffer
+ suggestion = b.suggestion
+
+ if suggestion:
+ t = re.split(r"(\S+\s+)", suggestion.text)
+ b.insert_text(next(x for x in t if x))
+
+ return key_bindings
diff --git a/src/prompt_toolkit/key_binding/bindings/basic.py b/src/prompt_toolkit/key_binding/bindings/basic.py
new file mode 100644
index 0000000..fc8f964
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/basic.py
@@ -0,0 +1,253 @@
+# pylint: disable=function-redefined
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.filters import (
+ Condition,
+ emacs_insert_mode,
+ has_selection,
+ in_paste_mode,
+ is_multiline,
+ vi_insert_mode,
+)
+from prompt_toolkit.key_binding.key_processor import KeyPress, KeyPressEvent
+from prompt_toolkit.keys import Keys
+
+from ..key_bindings import KeyBindings
+from .named_commands import get_by_name
+
+__all__ = [
+ "load_basic_bindings",
+]
+
+E = KeyPressEvent
+
+
+def if_no_repeat(event: E) -> bool:
+ """Callable that returns True when the previous event was delivered to
+ another handler."""
+ return not event.is_repeat
+
+
+def load_basic_bindings() -> KeyBindings:
+ key_bindings = KeyBindings()
+ insert_mode = vi_insert_mode | emacs_insert_mode
+ handle = key_bindings.add
+
+ @handle("c-a")
+ @handle("c-b")
+ @handle("c-c")
+ @handle("c-d")
+ @handle("c-e")
+ @handle("c-f")
+ @handle("c-g")
+ @handle("c-h")
+ @handle("c-i")
+ @handle("c-j")
+ @handle("c-k")
+ @handle("c-l")
+ @handle("c-m")
+ @handle("c-n")
+ @handle("c-o")
+ @handle("c-p")
+ @handle("c-q")
+ @handle("c-r")
+ @handle("c-s")
+ @handle("c-t")
+ @handle("c-u")
+ @handle("c-v")
+ @handle("c-w")
+ @handle("c-x")
+ @handle("c-y")
+ @handle("c-z")
+ @handle("f1")
+ @handle("f2")
+ @handle("f3")
+ @handle("f4")
+ @handle("f5")
+ @handle("f6")
+ @handle("f7")
+ @handle("f8")
+ @handle("f9")
+ @handle("f10")
+ @handle("f11")
+ @handle("f12")
+ @handle("f13")
+ @handle("f14")
+ @handle("f15")
+ @handle("f16")
+ @handle("f17")
+ @handle("f18")
+ @handle("f19")
+ @handle("f20")
+ @handle("f21")
+ @handle("f22")
+ @handle("f23")
+ @handle("f24")
+ @handle("c-@") # Also c-space.
+ @handle("c-\\")
+ @handle("c-]")
+ @handle("c-^")
+ @handle("c-_")
+ @handle("backspace")
+ @handle("up")
+ @handle("down")
+ @handle("right")
+ @handle("left")
+ @handle("s-up")
+ @handle("s-down")
+ @handle("s-right")
+ @handle("s-left")
+ @handle("home")
+ @handle("end")
+ @handle("s-home")
+ @handle("s-end")
+ @handle("delete")
+ @handle("s-delete")
+ @handle("c-delete")
+ @handle("pageup")
+ @handle("pagedown")
+ @handle("s-tab")
+ @handle("tab")
+ @handle("c-s-left")
+ @handle("c-s-right")
+ @handle("c-s-home")
+ @handle("c-s-end")
+ @handle("c-left")
+ @handle("c-right")
+ @handle("c-up")
+ @handle("c-down")
+ @handle("c-home")
+ @handle("c-end")
+ @handle("insert")
+ @handle("s-insert")
+ @handle("c-insert")
+ @handle("<sigint>")
+ @handle(Keys.Ignore)
+ def _ignore(event: E) -> None:
+ """
+ First, for any of these keys, Don't do anything by default. Also don't
+ catch them in the 'Any' handler which will insert them as data.
+
+ If people want to insert these characters as a literal, they can always
+ do by doing a quoted insert. (ControlQ in emacs mode, ControlV in Vi
+ mode.)
+ """
+ pass
+
+ # Readline-style bindings.
+ handle("home")(get_by_name("beginning-of-line"))
+ handle("end")(get_by_name("end-of-line"))
+ handle("left")(get_by_name("backward-char"))
+ handle("right")(get_by_name("forward-char"))
+ handle("c-up")(get_by_name("previous-history"))
+ handle("c-down")(get_by_name("next-history"))
+ handle("c-l")(get_by_name("clear-screen"))
+
+ handle("c-k", filter=insert_mode)(get_by_name("kill-line"))
+ handle("c-u", filter=insert_mode)(get_by_name("unix-line-discard"))
+ handle("backspace", filter=insert_mode, save_before=if_no_repeat)(
+ get_by_name("backward-delete-char")
+ )
+ handle("delete", filter=insert_mode, save_before=if_no_repeat)(
+ get_by_name("delete-char")
+ )
+ handle("c-delete", filter=insert_mode, save_before=if_no_repeat)(
+ get_by_name("delete-char")
+ )
+ handle(Keys.Any, filter=insert_mode, save_before=if_no_repeat)(
+ get_by_name("self-insert")
+ )
+ handle("c-t", filter=insert_mode)(get_by_name("transpose-chars"))
+ handle("c-i", filter=insert_mode)(get_by_name("menu-complete"))
+ handle("s-tab", filter=insert_mode)(get_by_name("menu-complete-backward"))
+
+ # Control-W should delete, using whitespace as separator, while M-Del
+ # should delete using [^a-zA-Z0-9] as a boundary.
+ handle("c-w", filter=insert_mode)(get_by_name("unix-word-rubout"))
+
+ handle("pageup", filter=~has_selection)(get_by_name("previous-history"))
+ handle("pagedown", filter=~has_selection)(get_by_name("next-history"))
+
+ # CTRL keys.
+
+ @Condition
+ def has_text_before_cursor() -> bool:
+ return bool(get_app().current_buffer.text)
+
+ handle("c-d", filter=has_text_before_cursor & insert_mode)(
+ get_by_name("delete-char")
+ )
+
+ @handle("enter", filter=insert_mode & is_multiline)
+ def _newline(event: E) -> None:
+ """
+ Newline (in case of multiline input.
+ """
+ event.current_buffer.newline(copy_margin=not in_paste_mode())
+
+ @handle("c-j")
+ def _newline2(event: E) -> None:
+ r"""
+ By default, handle \n as if it were a \r (enter).
+ (It appears that some terminals send \n instead of \r when pressing
+ enter. - at least the Linux subsystem for Windows.)
+ """
+ event.key_processor.feed(KeyPress(Keys.ControlM, "\r"), first=True)
+
+ # Delete the word before the cursor.
+
+ @handle("up")
+ def _go_up(event: E) -> None:
+ event.current_buffer.auto_up(count=event.arg)
+
+ @handle("down")
+ def _go_down(event: E) -> None:
+ event.current_buffer.auto_down(count=event.arg)
+
+ @handle("delete", filter=has_selection)
+ def _cut(event: E) -> None:
+ data = event.current_buffer.cut_selection()
+ event.app.clipboard.set_data(data)
+
+ # Global bindings.
+
+ @handle("c-z")
+ def _insert_ctrl_z(event: E) -> None:
+ """
+ By default, control-Z should literally insert Ctrl-Z.
+ (Ansi Ctrl-Z, code 26 in MSDOS means End-Of-File.
+ In a Python REPL for instance, it's possible to type
+ Control-Z followed by enter to quit.)
+
+ When the system bindings are loaded and suspend-to-background is
+ supported, that will override this binding.
+ """
+ event.current_buffer.insert_text(event.data)
+
+ @handle(Keys.BracketedPaste)
+ def _paste(event: E) -> None:
+ """
+ Pasting from clipboard.
+ """
+ data = event.data
+
+ # Be sure to use \n as line ending.
+ # Some terminals (Like iTerm2) seem to paste \r\n line endings in a
+ # bracketed paste. See: https://github.com/ipython/ipython/issues/9737
+ data = data.replace("\r\n", "\n")
+ data = data.replace("\r", "\n")
+
+ event.current_buffer.insert_text(data)
+
+ @Condition
+ def in_quoted_insert() -> bool:
+ return get_app().quoted_insert
+
+ @handle(Keys.Any, filter=in_quoted_insert, eager=True)
+ def _insert_text(event: E) -> None:
+ """
+ Handle quoted insert.
+ """
+ event.current_buffer.insert_text(event.data, overwrite=False)
+ event.app.quoted_insert = False
+
+ return key_bindings
diff --git a/src/prompt_toolkit/key_binding/bindings/completion.py b/src/prompt_toolkit/key_binding/bindings/completion.py
new file mode 100644
index 0000000..a30b54e
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/completion.py
@@ -0,0 +1,203 @@
+"""
+Key binding handlers for displaying completions.
+"""
+import asyncio
+import math
+from typing import TYPE_CHECKING, List
+
+from prompt_toolkit.application.run_in_terminal import in_terminal
+from prompt_toolkit.completion import (
+ CompleteEvent,
+ Completion,
+ get_common_complete_suffix,
+)
+from prompt_toolkit.formatted_text import StyleAndTextTuples
+from prompt_toolkit.key_binding.key_bindings import KeyBindings
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.utils import get_cwidth
+
+if TYPE_CHECKING:
+ from prompt_toolkit.application import Application
+ from prompt_toolkit.shortcuts import PromptSession
+
+__all__ = [
+ "generate_completions",
+ "display_completions_like_readline",
+]
+
+E = KeyPressEvent
+
+
+def generate_completions(event: E) -> None:
+ r"""
+ Tab-completion: where the first tab completes the common suffix and the
+ second tab lists all the completions.
+ """
+ b = event.current_buffer
+
+ # When already navigating through completions, select the next one.
+ if b.complete_state:
+ b.complete_next()
+ else:
+ b.start_completion(insert_common_part=True)
+
+
+def display_completions_like_readline(event: E) -> None:
+ """
+ Key binding handler for readline-style tab completion.
+ This is meant to be as similar as possible to the way how readline displays
+ completions.
+
+ Generate the completions immediately (blocking) and display them above the
+ prompt in columns.
+
+ Usage::
+
+ # Call this handler when 'Tab' has been pressed.
+ key_bindings.add(Keys.ControlI)(display_completions_like_readline)
+ """
+ # Request completions.
+ b = event.current_buffer
+ if b.completer is None:
+ return
+ complete_event = CompleteEvent(completion_requested=True)
+ completions = list(b.completer.get_completions(b.document, complete_event))
+
+ # Calculate the common suffix.
+ common_suffix = get_common_complete_suffix(b.document, completions)
+
+ # One completion: insert it.
+ if len(completions) == 1:
+ b.delete_before_cursor(-completions[0].start_position)
+ b.insert_text(completions[0].text)
+ # Multiple completions with common part.
+ elif common_suffix:
+ b.insert_text(common_suffix)
+ # Otherwise: display all completions.
+ elif completions:
+ _display_completions_like_readline(event.app, completions)
+
+
+def _display_completions_like_readline(
+ app: "Application[object]", completions: List[Completion]
+) -> "asyncio.Task[None]":
+ """
+ Display the list of completions in columns above the prompt.
+ This will ask for a confirmation if there are too many completions to fit
+ on a single page and provide a paginator to walk through them.
+ """
+ from prompt_toolkit.formatted_text import to_formatted_text
+ from prompt_toolkit.shortcuts.prompt import create_confirm_session
+
+ # Get terminal dimensions.
+ term_size = app.output.get_size()
+ term_width = term_size.columns
+ term_height = term_size.rows
+
+ # Calculate amount of required columns/rows for displaying the
+ # completions. (Keep in mind that completions are displayed
+ # alphabetically column-wise.)
+ max_compl_width = min(
+ term_width, max(get_cwidth(c.display_text) for c in completions) + 1
+ )
+ column_count = max(1, term_width // max_compl_width)
+ completions_per_page = column_count * (term_height - 1)
+ page_count = int(math.ceil(len(completions) / float(completions_per_page)))
+ # Note: math.ceil can return float on Python2.
+
+ def display(page: int) -> None:
+ # Display completions.
+ page_completions = completions[
+ page * completions_per_page : (page + 1) * completions_per_page
+ ]
+
+ page_row_count = int(math.ceil(len(page_completions) / float(column_count)))
+ page_columns = [
+ page_completions[i * page_row_count : (i + 1) * page_row_count]
+ for i in range(column_count)
+ ]
+
+ result: StyleAndTextTuples = []
+
+ for r in range(page_row_count):
+ for c in range(column_count):
+ try:
+ completion = page_columns[c][r]
+ style = "class:readline-like-completions.completion " + (
+ completion.style or ""
+ )
+
+ result.extend(to_formatted_text(completion.display, style=style))
+
+ # Add padding.
+ padding = max_compl_width - get_cwidth(completion.display_text)
+ result.append((completion.style, " " * padding))
+ except IndexError:
+ pass
+ result.append(("", "\n"))
+
+ app.print_text(to_formatted_text(result, "class:readline-like-completions"))
+
+ # User interaction through an application generator function.
+ async def run_compl() -> None:
+ "Coroutine."
+ async with in_terminal(render_cli_done=True):
+ if len(completions) > completions_per_page:
+ # Ask confirmation if it doesn't fit on the screen.
+ confirm = await create_confirm_session(
+ f"Display all {len(completions)} possibilities?",
+ ).prompt_async()
+
+ if confirm:
+ # Display pages.
+ for page in range(page_count):
+ display(page)
+
+ if page != page_count - 1:
+ # Display --MORE-- and go to the next page.
+ show_more = await _create_more_session(
+ "--MORE--"
+ ).prompt_async()
+
+ if not show_more:
+ return
+ else:
+ app.output.flush()
+ else:
+ # Display all completions.
+ display(0)
+
+ return app.create_background_task(run_compl())
+
+
+def _create_more_session(message: str = "--MORE--") -> "PromptSession[bool]":
+ """
+ Create a `PromptSession` object for displaying the "--MORE--".
+ """
+ from prompt_toolkit.shortcuts import PromptSession
+
+ bindings = KeyBindings()
+
+ @bindings.add(" ")
+ @bindings.add("y")
+ @bindings.add("Y")
+ @bindings.add(Keys.ControlJ)
+ @bindings.add(Keys.ControlM)
+ @bindings.add(Keys.ControlI) # Tab.
+ def _yes(event: E) -> None:
+ event.app.exit(result=True)
+
+ @bindings.add("n")
+ @bindings.add("N")
+ @bindings.add("q")
+ @bindings.add("Q")
+ @bindings.add(Keys.ControlC)
+ def _no(event: E) -> None:
+ event.app.exit(result=False)
+
+ @bindings.add(Keys.Any)
+ def _ignore(event: E) -> None:
+ "Disable inserting of text."
+
+ return PromptSession(message, key_bindings=bindings, erase_when_done=True)
diff --git a/src/prompt_toolkit/key_binding/bindings/cpr.py b/src/prompt_toolkit/key_binding/bindings/cpr.py
new file mode 100644
index 0000000..07b0fa7
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/cpr.py
@@ -0,0 +1,28 @@
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+from prompt_toolkit.keys import Keys
+
+from ..key_bindings import KeyBindings
+
+__all__ = [
+ "load_cpr_bindings",
+]
+
+E = KeyPressEvent
+
+
+def load_cpr_bindings() -> KeyBindings:
+ key_bindings = KeyBindings()
+
+ @key_bindings.add(Keys.CPRResponse, save_before=lambda e: False)
+ def _(event: E) -> None:
+ """
+ Handle incoming Cursor-Position-Request response.
+ """
+ # The incoming data looks like u'\x1b[35;1R'
+ # Parse row/col information.
+ row, col = map(int, event.data[2:-1].split(";"))
+
+ # Report absolute cursor position to the renderer.
+ event.app.renderer.report_absolute_cursor_row(row)
+
+ return key_bindings
diff --git a/src/prompt_toolkit/key_binding/bindings/emacs.py b/src/prompt_toolkit/key_binding/bindings/emacs.py
new file mode 100644
index 0000000..a4a5e34
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/emacs.py
@@ -0,0 +1,557 @@
+# pylint: disable=function-redefined
+from typing import Dict, Union
+
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.buffer import Buffer, indent, unindent
+from prompt_toolkit.completion import CompleteEvent
+from prompt_toolkit.filters import (
+ Condition,
+ emacs_insert_mode,
+ emacs_mode,
+ has_arg,
+ has_selection,
+ in_paste_mode,
+ is_multiline,
+ is_read_only,
+ shift_selection_mode,
+ vi_search_direction_reversed,
+)
+from prompt_toolkit.key_binding.key_bindings import Binding
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.selection import SelectionType
+
+from ..key_bindings import ConditionalKeyBindings, KeyBindings, KeyBindingsBase
+from .named_commands import get_by_name
+
+__all__ = [
+ "load_emacs_bindings",
+ "load_emacs_search_bindings",
+ "load_emacs_shift_selection_bindings",
+]
+
+E = KeyPressEvent
+
+
+def load_emacs_bindings() -> KeyBindingsBase:
+ """
+ Some e-macs extensions.
+ """
+ # Overview of Readline emacs commands:
+ # http://www.catonmat.net/download/readline-emacs-editing-mode-cheat-sheet.pdf
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ insert_mode = emacs_insert_mode
+
+ @handle("escape")
+ def _esc(event: E) -> None:
+ """
+ By default, ignore escape key.
+
+ (If we don't put this here, and Esc is followed by a key which sequence
+ is not handled, we'll insert an Escape character in the input stream.
+ Something we don't want and happens to easily in emacs mode.
+ Further, people can always use ControlQ to do a quoted insert.)
+ """
+ pass
+
+ handle("c-a")(get_by_name("beginning-of-line"))
+ handle("c-b")(get_by_name("backward-char"))
+ handle("c-delete", filter=insert_mode)(get_by_name("kill-word"))
+ handle("c-e")(get_by_name("end-of-line"))
+ handle("c-f")(get_by_name("forward-char"))
+ handle("c-left")(get_by_name("backward-word"))
+ handle("c-right")(get_by_name("forward-word"))
+ handle("c-x", "r", "y", filter=insert_mode)(get_by_name("yank"))
+ handle("c-y", filter=insert_mode)(get_by_name("yank"))
+ handle("escape", "b")(get_by_name("backward-word"))
+ handle("escape", "c", filter=insert_mode)(get_by_name("capitalize-word"))
+ handle("escape", "d", filter=insert_mode)(get_by_name("kill-word"))
+ handle("escape", "f")(get_by_name("forward-word"))
+ handle("escape", "l", filter=insert_mode)(get_by_name("downcase-word"))
+ handle("escape", "u", filter=insert_mode)(get_by_name("uppercase-word"))
+ handle("escape", "y", filter=insert_mode)(get_by_name("yank-pop"))
+ handle("escape", "backspace", filter=insert_mode)(get_by_name("backward-kill-word"))
+ handle("escape", "\\", filter=insert_mode)(get_by_name("delete-horizontal-space"))
+
+ handle("c-home")(get_by_name("beginning-of-buffer"))
+ handle("c-end")(get_by_name("end-of-buffer"))
+
+ handle("c-_", save_before=(lambda e: False), filter=insert_mode)(
+ get_by_name("undo")
+ )
+
+ handle("c-x", "c-u", save_before=(lambda e: False), filter=insert_mode)(
+ get_by_name("undo")
+ )
+
+ handle("escape", "<", filter=~has_selection)(get_by_name("beginning-of-history"))
+ handle("escape", ">", filter=~has_selection)(get_by_name("end-of-history"))
+
+ handle("escape", ".", filter=insert_mode)(get_by_name("yank-last-arg"))
+ handle("escape", "_", filter=insert_mode)(get_by_name("yank-last-arg"))
+ handle("escape", "c-y", filter=insert_mode)(get_by_name("yank-nth-arg"))
+ handle("escape", "#", filter=insert_mode)(get_by_name("insert-comment"))
+ handle("c-o")(get_by_name("operate-and-get-next"))
+
+ # ControlQ does a quoted insert. Not that for vt100 terminals, you have to
+ # disable flow control by running ``stty -ixon``, otherwise Ctrl-Q and
+ # Ctrl-S are captured by the terminal.
+ handle("c-q", filter=~has_selection)(get_by_name("quoted-insert"))
+
+ handle("c-x", "(")(get_by_name("start-kbd-macro"))
+ handle("c-x", ")")(get_by_name("end-kbd-macro"))
+ handle("c-x", "e")(get_by_name("call-last-kbd-macro"))
+
+ @handle("c-n")
+ def _next(event: E) -> None:
+ "Next line."
+ event.current_buffer.auto_down()
+
+ @handle("c-p")
+ def _prev(event: E) -> None:
+ "Previous line."
+ event.current_buffer.auto_up(count=event.arg)
+
+ def handle_digit(c: str) -> None:
+ """
+ Handle input of arguments.
+ The first number needs to be preceded by escape.
+ """
+
+ @handle(c, filter=has_arg)
+ @handle("escape", c)
+ def _(event: E) -> None:
+ event.append_to_arg_count(c)
+
+ for c in "0123456789":
+ handle_digit(c)
+
+ @handle("escape", "-", filter=~has_arg)
+ def _meta_dash(event: E) -> None:
+ """"""
+ if event._arg is None:
+ event.append_to_arg_count("-")
+
+ @handle("-", filter=Condition(lambda: get_app().key_processor.arg == "-"))
+ def _dash(event: E) -> None:
+ """
+ When '-' is typed again, after exactly '-' has been given as an
+ argument, ignore this.
+ """
+ event.app.key_processor.arg = "-"
+
+ @Condition
+ def is_returnable() -> bool:
+ return get_app().current_buffer.is_returnable
+
+ # Meta + Enter: always accept input.
+ handle("escape", "enter", filter=insert_mode & is_returnable)(
+ get_by_name("accept-line")
+ )
+
+ # Enter: accept input in single line mode.
+ handle("enter", filter=insert_mode & is_returnable & ~is_multiline)(
+ get_by_name("accept-line")
+ )
+
+ def character_search(buff: Buffer, char: str, count: int) -> None:
+ if count < 0:
+ match = buff.document.find_backwards(
+ char, in_current_line=True, count=-count
+ )
+ else:
+ match = buff.document.find(char, in_current_line=True, count=count)
+
+ if match is not None:
+ buff.cursor_position += match
+
+ @handle("c-]", Keys.Any)
+ def _goto_char(event: E) -> None:
+ "When Ctl-] + a character is pressed. go to that character."
+ # Also named 'character-search'
+ character_search(event.current_buffer, event.data, event.arg)
+
+ @handle("escape", "c-]", Keys.Any)
+ def _goto_char_backwards(event: E) -> None:
+ "Like Ctl-], but backwards."
+ # Also named 'character-search-backward'
+ character_search(event.current_buffer, event.data, -event.arg)
+
+ @handle("escape", "a")
+ def _prev_sentence(event: E) -> None:
+ "Previous sentence."
+ # TODO:
+
+ @handle("escape", "e")
+ def _end_of_sentence(event: E) -> None:
+ "Move to end of sentence."
+ # TODO:
+
+ @handle("escape", "t", filter=insert_mode)
+ def _swap_characters(event: E) -> None:
+ """
+ Swap the last two words before the cursor.
+ """
+ # TODO
+
+ @handle("escape", "*", filter=insert_mode)
+ def _insert_all_completions(event: E) -> None:
+ """
+ `meta-*`: Insert all possible completions of the preceding text.
+ """
+ buff = event.current_buffer
+
+ # List all completions.
+ complete_event = CompleteEvent(text_inserted=False, completion_requested=True)
+ completions = list(
+ buff.completer.get_completions(buff.document, complete_event)
+ )
+
+ # Insert them.
+ text_to_insert = " ".join(c.text for c in completions)
+ buff.insert_text(text_to_insert)
+
+ @handle("c-x", "c-x")
+ def _toggle_start_end(event: E) -> None:
+ """
+ Move cursor back and forth between the start and end of the current
+ line.
+ """
+ buffer = event.current_buffer
+
+ if buffer.document.is_cursor_at_the_end_of_line:
+ buffer.cursor_position += buffer.document.get_start_of_line_position(
+ after_whitespace=False
+ )
+ else:
+ buffer.cursor_position += buffer.document.get_end_of_line_position()
+
+ @handle("c-@") # Control-space or Control-@
+ def _start_selection(event: E) -> None:
+ """
+ Start of the selection (if the current buffer is not empty).
+ """
+ # Take the current cursor position as the start of this selection.
+ buff = event.current_buffer
+ if buff.text:
+ buff.start_selection(selection_type=SelectionType.CHARACTERS)
+
+ @handle("c-g", filter=~has_selection)
+ def _cancel(event: E) -> None:
+ """
+ Control + G: Cancel completion menu and validation state.
+ """
+ event.current_buffer.complete_state = None
+ event.current_buffer.validation_error = None
+
+ @handle("c-g", filter=has_selection)
+ def _cancel_selection(event: E) -> None:
+ """
+ Cancel selection.
+ """
+ event.current_buffer.exit_selection()
+
+ @handle("c-w", filter=has_selection)
+ @handle("c-x", "r", "k", filter=has_selection)
+ def _cut(event: E) -> None:
+ """
+ Cut selected text.
+ """
+ data = event.current_buffer.cut_selection()
+ event.app.clipboard.set_data(data)
+
+ @handle("escape", "w", filter=has_selection)
+ def _copy(event: E) -> None:
+ """
+ Copy selected text.
+ """
+ data = event.current_buffer.copy_selection()
+ event.app.clipboard.set_data(data)
+
+ @handle("escape", "left")
+ def _start_of_word(event: E) -> None:
+ """
+ Cursor to start of previous word.
+ """
+ buffer = event.current_buffer
+ buffer.cursor_position += (
+ buffer.document.find_previous_word_beginning(count=event.arg) or 0
+ )
+
+ @handle("escape", "right")
+ def _start_next_word(event: E) -> None:
+ """
+ Cursor to start of next word.
+ """
+ buffer = event.current_buffer
+ buffer.cursor_position += (
+ buffer.document.find_next_word_beginning(count=event.arg)
+ or buffer.document.get_end_of_document_position()
+ )
+
+ @handle("escape", "/", filter=insert_mode)
+ def _complete(event: E) -> None:
+ """
+ M-/: Complete.
+ """
+ b = event.current_buffer
+ if b.complete_state:
+ b.complete_next()
+ else:
+ b.start_completion(select_first=True)
+
+ @handle("c-c", ">", filter=has_selection)
+ def _indent(event: E) -> None:
+ """
+ Indent selected text.
+ """
+ buffer = event.current_buffer
+
+ buffer.cursor_position += buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+ from_, to = buffer.document.selection_range()
+ from_, _ = buffer.document.translate_index_to_position(from_)
+ to, _ = buffer.document.translate_index_to_position(to)
+
+ indent(buffer, from_, to + 1, count=event.arg)
+
+ @handle("c-c", "<", filter=has_selection)
+ def _unindent(event: E) -> None:
+ """
+ Unindent selected text.
+ """
+ buffer = event.current_buffer
+
+ from_, to = buffer.document.selection_range()
+ from_, _ = buffer.document.translate_index_to_position(from_)
+ to, _ = buffer.document.translate_index_to_position(to)
+
+ unindent(buffer, from_, to + 1, count=event.arg)
+
+ return ConditionalKeyBindings(key_bindings, emacs_mode)
+
+
+def load_emacs_search_bindings() -> KeyBindingsBase:
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+ from . import search
+
+ # NOTE: We don't bind 'Escape' to 'abort_search'. The reason is that we
+ # want Alt+Enter to accept input directly in incremental search mode.
+ # Instead, we have double escape.
+
+ handle("c-r")(search.start_reverse_incremental_search)
+ handle("c-s")(search.start_forward_incremental_search)
+
+ handle("c-c")(search.abort_search)
+ handle("c-g")(search.abort_search)
+ handle("c-r")(search.reverse_incremental_search)
+ handle("c-s")(search.forward_incremental_search)
+ handle("up")(search.reverse_incremental_search)
+ handle("down")(search.forward_incremental_search)
+ handle("enter")(search.accept_search)
+
+ # Handling of escape.
+ handle("escape", eager=True)(search.accept_search)
+
+ # Like Readline, it's more natural to accept the search when escape has
+ # been pressed, however instead the following two bindings could be used
+ # instead.
+ # #handle('escape', 'escape', eager=True)(search.abort_search)
+ # #handle('escape', 'enter', eager=True)(search.accept_search_and_accept_input)
+
+ # If Read-only: also include the following key bindings:
+
+ # '/' and '?' key bindings for searching, just like Vi mode.
+ handle("?", filter=is_read_only & ~vi_search_direction_reversed)(
+ search.start_reverse_incremental_search
+ )
+ handle("/", filter=is_read_only & ~vi_search_direction_reversed)(
+ search.start_forward_incremental_search
+ )
+ handle("?", filter=is_read_only & vi_search_direction_reversed)(
+ search.start_forward_incremental_search
+ )
+ handle("/", filter=is_read_only & vi_search_direction_reversed)(
+ search.start_reverse_incremental_search
+ )
+
+ @handle("n", filter=is_read_only)
+ def _jump_next(event: E) -> None:
+ "Jump to next match."
+ event.current_buffer.apply_search(
+ event.app.current_search_state,
+ include_current_position=False,
+ count=event.arg,
+ )
+
+ @handle("N", filter=is_read_only)
+ def _jump_prev(event: E) -> None:
+ "Jump to previous match."
+ event.current_buffer.apply_search(
+ ~event.app.current_search_state,
+ include_current_position=False,
+ count=event.arg,
+ )
+
+ return ConditionalKeyBindings(key_bindings, emacs_mode)
+
+
+def load_emacs_shift_selection_bindings() -> KeyBindingsBase:
+ """
+ Bindings to select text with shift + cursor movements
+ """
+
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ def unshift_move(event: E) -> None:
+ """
+ Used for the shift selection mode. When called with
+ a shift + movement key press event, moves the cursor
+ as if shift is not pressed.
+ """
+ key = event.key_sequence[0].key
+
+ if key == Keys.ShiftUp:
+ event.current_buffer.auto_up(count=event.arg)
+ return
+ if key == Keys.ShiftDown:
+ event.current_buffer.auto_down(count=event.arg)
+ return
+
+ # the other keys are handled through their readline command
+ key_to_command: Dict[Union[Keys, str], str] = {
+ Keys.ShiftLeft: "backward-char",
+ Keys.ShiftRight: "forward-char",
+ Keys.ShiftHome: "beginning-of-line",
+ Keys.ShiftEnd: "end-of-line",
+ Keys.ControlShiftLeft: "backward-word",
+ Keys.ControlShiftRight: "forward-word",
+ Keys.ControlShiftHome: "beginning-of-buffer",
+ Keys.ControlShiftEnd: "end-of-buffer",
+ }
+
+ try:
+ # Both the dict lookup and `get_by_name` can raise KeyError.
+ binding = get_by_name(key_to_command[key])
+ except KeyError:
+ pass
+ else: # (`else` is not really needed here.)
+ if isinstance(binding, Binding):
+ # (It should always be a binding here)
+ binding.call(event)
+
+ @handle("s-left", filter=~has_selection)
+ @handle("s-right", filter=~has_selection)
+ @handle("s-up", filter=~has_selection)
+ @handle("s-down", filter=~has_selection)
+ @handle("s-home", filter=~has_selection)
+ @handle("s-end", filter=~has_selection)
+ @handle("c-s-left", filter=~has_selection)
+ @handle("c-s-right", filter=~has_selection)
+ @handle("c-s-home", filter=~has_selection)
+ @handle("c-s-end", filter=~has_selection)
+ def _start_selection(event: E) -> None:
+ """
+ Start selection with shift + movement.
+ """
+ # Take the current cursor position as the start of this selection.
+ buff = event.current_buffer
+ if buff.text:
+ buff.start_selection(selection_type=SelectionType.CHARACTERS)
+
+ if buff.selection_state is not None:
+ # (`selection_state` should never be `None`, it is created by
+ # `start_selection`.)
+ buff.selection_state.enter_shift_mode()
+
+ # Then move the cursor
+ original_position = buff.cursor_position
+ unshift_move(event)
+ if buff.cursor_position == original_position:
+ # Cursor didn't actually move - so cancel selection
+ # to avoid having an empty selection
+ buff.exit_selection()
+
+ @handle("s-left", filter=shift_selection_mode)
+ @handle("s-right", filter=shift_selection_mode)
+ @handle("s-up", filter=shift_selection_mode)
+ @handle("s-down", filter=shift_selection_mode)
+ @handle("s-home", filter=shift_selection_mode)
+ @handle("s-end", filter=shift_selection_mode)
+ @handle("c-s-left", filter=shift_selection_mode)
+ @handle("c-s-right", filter=shift_selection_mode)
+ @handle("c-s-home", filter=shift_selection_mode)
+ @handle("c-s-end", filter=shift_selection_mode)
+ def _extend_selection(event: E) -> None:
+ """
+ Extend the selection
+ """
+ # Just move the cursor, like shift was not pressed
+ unshift_move(event)
+ buff = event.current_buffer
+
+ if buff.selection_state is not None:
+ if buff.cursor_position == buff.selection_state.original_cursor_position:
+ # selection is now empty, so cancel selection
+ buff.exit_selection()
+
+ @handle(Keys.Any, filter=shift_selection_mode)
+ def _replace_selection(event: E) -> None:
+ """
+ Replace selection by what is typed
+ """
+ event.current_buffer.cut_selection()
+ get_by_name("self-insert").call(event)
+
+ @handle("enter", filter=shift_selection_mode & is_multiline)
+ def _newline(event: E) -> None:
+ """
+ A newline replaces the selection
+ """
+ event.current_buffer.cut_selection()
+ event.current_buffer.newline(copy_margin=not in_paste_mode())
+
+ @handle("backspace", filter=shift_selection_mode)
+ def _delete(event: E) -> None:
+ """
+ Delete selection.
+ """
+ event.current_buffer.cut_selection()
+
+ @handle("c-y", filter=shift_selection_mode)
+ def _yank(event: E) -> None:
+ """
+ In shift selection mode, yanking (pasting) replace the selection.
+ """
+ buff = event.current_buffer
+ if buff.selection_state:
+ buff.cut_selection()
+ get_by_name("yank").call(event)
+
+ # moving the cursor in shift selection mode cancels the selection
+ @handle("left", filter=shift_selection_mode)
+ @handle("right", filter=shift_selection_mode)
+ @handle("up", filter=shift_selection_mode)
+ @handle("down", filter=shift_selection_mode)
+ @handle("home", filter=shift_selection_mode)
+ @handle("end", filter=shift_selection_mode)
+ @handle("c-left", filter=shift_selection_mode)
+ @handle("c-right", filter=shift_selection_mode)
+ @handle("c-home", filter=shift_selection_mode)
+ @handle("c-end", filter=shift_selection_mode)
+ def _cancel(event: E) -> None:
+ """
+ Cancel selection.
+ """
+ event.current_buffer.exit_selection()
+ # we then process the cursor movement
+ key_press = event.key_sequence[0]
+ event.key_processor.feed(key_press, first=True)
+
+ return ConditionalKeyBindings(key_bindings, emacs_mode)
diff --git a/src/prompt_toolkit/key_binding/bindings/focus.py b/src/prompt_toolkit/key_binding/bindings/focus.py
new file mode 100644
index 0000000..40844db
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/focus.py
@@ -0,0 +1,24 @@
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+
+__all__ = [
+ "focus_next",
+ "focus_previous",
+]
+
+E = KeyPressEvent
+
+
+def focus_next(event: E) -> None:
+ """
+ Focus the next visible Window.
+ (Often bound to the `Tab` key.)
+ """
+ event.app.layout.focus_next()
+
+
+def focus_previous(event: E) -> None:
+ """
+ Focus the previous visible Window.
+ (Often bound to the `BackTab` key.)
+ """
+ event.app.layout.focus_previous()
diff --git a/src/prompt_toolkit/key_binding/bindings/mouse.py b/src/prompt_toolkit/key_binding/bindings/mouse.py
new file mode 100644
index 0000000..916cd41
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/mouse.py
@@ -0,0 +1,347 @@
+import sys
+from typing import TYPE_CHECKING, FrozenSet
+
+from prompt_toolkit.data_structures import Point
+from prompt_toolkit.key_binding.key_processor import KeyPress, KeyPressEvent
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.mouse_events import (
+ MouseButton,
+ MouseEvent,
+ MouseEventType,
+ MouseModifier,
+)
+
+from ..key_bindings import KeyBindings
+
+if TYPE_CHECKING:
+ from prompt_toolkit.key_binding.key_bindings import NotImplementedOrNone
+
+__all__ = [
+ "load_mouse_bindings",
+]
+
+E = KeyPressEvent
+
+# fmt: off
+# flake8: noqa E201
+SCROLL_UP = MouseEventType.SCROLL_UP
+SCROLL_DOWN = MouseEventType.SCROLL_DOWN
+MOUSE_DOWN = MouseEventType.MOUSE_DOWN
+MOUSE_MOVE = MouseEventType.MOUSE_MOVE
+MOUSE_UP = MouseEventType.MOUSE_UP
+
+NO_MODIFIER : FrozenSet[MouseModifier] = frozenset()
+SHIFT : FrozenSet[MouseModifier] = frozenset({MouseModifier.SHIFT})
+ALT : FrozenSet[MouseModifier] = frozenset({MouseModifier.ALT})
+SHIFT_ALT : FrozenSet[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.ALT})
+CONTROL : FrozenSet[MouseModifier] = frozenset({MouseModifier.CONTROL})
+SHIFT_CONTROL : FrozenSet[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.CONTROL})
+ALT_CONTROL : FrozenSet[MouseModifier] = frozenset({MouseModifier.ALT, MouseModifier.CONTROL})
+SHIFT_ALT_CONTROL: FrozenSet[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.ALT, MouseModifier.CONTROL})
+UNKNOWN_MODIFIER : FrozenSet[MouseModifier] = frozenset()
+
+LEFT = MouseButton.LEFT
+MIDDLE = MouseButton.MIDDLE
+RIGHT = MouseButton.RIGHT
+NO_BUTTON = MouseButton.NONE
+UNKNOWN_BUTTON = MouseButton.UNKNOWN
+
+xterm_sgr_mouse_events = {
+ ( 0, 'm') : (LEFT, MOUSE_UP, NO_MODIFIER), # left_up 0+ + + =0
+ ( 4, 'm') : (LEFT, MOUSE_UP, SHIFT), # left_up Shift 0+4+ + =4
+ ( 8, 'm') : (LEFT, MOUSE_UP, ALT), # left_up Alt 0+ +8+ =8
+ (12, 'm') : (LEFT, MOUSE_UP, SHIFT_ALT), # left_up Shift Alt 0+4+8+ =12
+ (16, 'm') : (LEFT, MOUSE_UP, CONTROL), # left_up Control 0+ + +16=16
+ (20, 'm') : (LEFT, MOUSE_UP, SHIFT_CONTROL), # left_up Shift Control 0+4+ +16=20
+ (24, 'm') : (LEFT, MOUSE_UP, ALT_CONTROL), # left_up Alt Control 0+ +8+16=24
+ (28, 'm') : (LEFT, MOUSE_UP, SHIFT_ALT_CONTROL), # left_up Shift Alt Control 0+4+8+16=28
+
+ ( 1, 'm') : (MIDDLE, MOUSE_UP, NO_MODIFIER), # middle_up 1+ + + =1
+ ( 5, 'm') : (MIDDLE, MOUSE_UP, SHIFT), # middle_up Shift 1+4+ + =5
+ ( 9, 'm') : (MIDDLE, MOUSE_UP, ALT), # middle_up Alt 1+ +8+ =9
+ (13, 'm') : (MIDDLE, MOUSE_UP, SHIFT_ALT), # middle_up Shift Alt 1+4+8+ =13
+ (17, 'm') : (MIDDLE, MOUSE_UP, CONTROL), # middle_up Control 1+ + +16=17
+ (21, 'm') : (MIDDLE, MOUSE_UP, SHIFT_CONTROL), # middle_up Shift Control 1+4+ +16=21
+ (25, 'm') : (MIDDLE, MOUSE_UP, ALT_CONTROL), # middle_up Alt Control 1+ +8+16=25
+ (29, 'm') : (MIDDLE, MOUSE_UP, SHIFT_ALT_CONTROL), # middle_up Shift Alt Control 1+4+8+16=29
+
+ ( 2, 'm') : (RIGHT, MOUSE_UP, NO_MODIFIER), # right_up 2+ + + =2
+ ( 6, 'm') : (RIGHT, MOUSE_UP, SHIFT), # right_up Shift 2+4+ + =6
+ (10, 'm') : (RIGHT, MOUSE_UP, ALT), # right_up Alt 2+ +8+ =10
+ (14, 'm') : (RIGHT, MOUSE_UP, SHIFT_ALT), # right_up Shift Alt 2+4+8+ =14
+ (18, 'm') : (RIGHT, MOUSE_UP, CONTROL), # right_up Control 2+ + +16=18
+ (22, 'm') : (RIGHT, MOUSE_UP, SHIFT_CONTROL), # right_up Shift Control 2+4+ +16=22
+ (26, 'm') : (RIGHT, MOUSE_UP, ALT_CONTROL), # right_up Alt Control 2+ +8+16=26
+ (30, 'm') : (RIGHT, MOUSE_UP, SHIFT_ALT_CONTROL), # right_up Shift Alt Control 2+4+8+16=30
+
+ ( 0, 'M') : (LEFT, MOUSE_DOWN, NO_MODIFIER), # left_down 0+ + + =0
+ ( 4, 'M') : (LEFT, MOUSE_DOWN, SHIFT), # left_down Shift 0+4+ + =4
+ ( 8, 'M') : (LEFT, MOUSE_DOWN, ALT), # left_down Alt 0+ +8+ =8
+ (12, 'M') : (LEFT, MOUSE_DOWN, SHIFT_ALT), # left_down Shift Alt 0+4+8+ =12
+ (16, 'M') : (LEFT, MOUSE_DOWN, CONTROL), # left_down Control 0+ + +16=16
+ (20, 'M') : (LEFT, MOUSE_DOWN, SHIFT_CONTROL), # left_down Shift Control 0+4+ +16=20
+ (24, 'M') : (LEFT, MOUSE_DOWN, ALT_CONTROL), # left_down Alt Control 0+ +8+16=24
+ (28, 'M') : (LEFT, MOUSE_DOWN, SHIFT_ALT_CONTROL), # left_down Shift Alt Control 0+4+8+16=28
+
+ ( 1, 'M') : (MIDDLE, MOUSE_DOWN, NO_MODIFIER), # middle_down 1+ + + =1
+ ( 5, 'M') : (MIDDLE, MOUSE_DOWN, SHIFT), # middle_down Shift 1+4+ + =5
+ ( 9, 'M') : (MIDDLE, MOUSE_DOWN, ALT), # middle_down Alt 1+ +8+ =9
+ (13, 'M') : (MIDDLE, MOUSE_DOWN, SHIFT_ALT), # middle_down Shift Alt 1+4+8+ =13
+ (17, 'M') : (MIDDLE, MOUSE_DOWN, CONTROL), # middle_down Control 1+ + +16=17
+ (21, 'M') : (MIDDLE, MOUSE_DOWN, SHIFT_CONTROL), # middle_down Shift Control 1+4+ +16=21
+ (25, 'M') : (MIDDLE, MOUSE_DOWN, ALT_CONTROL), # middle_down Alt Control 1+ +8+16=25
+ (29, 'M') : (MIDDLE, MOUSE_DOWN, SHIFT_ALT_CONTROL), # middle_down Shift Alt Control 1+4+8+16=29
+
+ ( 2, 'M') : (RIGHT, MOUSE_DOWN, NO_MODIFIER), # right_down 2+ + + =2
+ ( 6, 'M') : (RIGHT, MOUSE_DOWN, SHIFT), # right_down Shift 2+4+ + =6
+ (10, 'M') : (RIGHT, MOUSE_DOWN, ALT), # right_down Alt 2+ +8+ =10
+ (14, 'M') : (RIGHT, MOUSE_DOWN, SHIFT_ALT), # right_down Shift Alt 2+4+8+ =14
+ (18, 'M') : (RIGHT, MOUSE_DOWN, CONTROL), # right_down Control 2+ + +16=18
+ (22, 'M') : (RIGHT, MOUSE_DOWN, SHIFT_CONTROL), # right_down Shift Control 2+4+ +16=22
+ (26, 'M') : (RIGHT, MOUSE_DOWN, ALT_CONTROL), # right_down Alt Control 2+ +8+16=26
+ (30, 'M') : (RIGHT, MOUSE_DOWN, SHIFT_ALT_CONTROL), # right_down Shift Alt Control 2+4+8+16=30
+
+ (32, 'M') : (LEFT, MOUSE_MOVE, NO_MODIFIER), # left_drag 32+ + + =32
+ (36, 'M') : (LEFT, MOUSE_MOVE, SHIFT), # left_drag Shift 32+4+ + =36
+ (40, 'M') : (LEFT, MOUSE_MOVE, ALT), # left_drag Alt 32+ +8+ =40
+ (44, 'M') : (LEFT, MOUSE_MOVE, SHIFT_ALT), # left_drag Shift Alt 32+4+8+ =44
+ (48, 'M') : (LEFT, MOUSE_MOVE, CONTROL), # left_drag Control 32+ + +16=48
+ (52, 'M') : (LEFT, MOUSE_MOVE, SHIFT_CONTROL), # left_drag Shift Control 32+4+ +16=52
+ (56, 'M') : (LEFT, MOUSE_MOVE, ALT_CONTROL), # left_drag Alt Control 32+ +8+16=56
+ (60, 'M') : (LEFT, MOUSE_MOVE, SHIFT_ALT_CONTROL), # left_drag Shift Alt Control 32+4+8+16=60
+
+ (33, 'M') : (MIDDLE, MOUSE_MOVE, NO_MODIFIER), # middle_drag 33+ + + =33
+ (37, 'M') : (MIDDLE, MOUSE_MOVE, SHIFT), # middle_drag Shift 33+4+ + =37
+ (41, 'M') : (MIDDLE, MOUSE_MOVE, ALT), # middle_drag Alt 33+ +8+ =41
+ (45, 'M') : (MIDDLE, MOUSE_MOVE, SHIFT_ALT), # middle_drag Shift Alt 33+4+8+ =45
+ (49, 'M') : (MIDDLE, MOUSE_MOVE, CONTROL), # middle_drag Control 33+ + +16=49
+ (53, 'M') : (MIDDLE, MOUSE_MOVE, SHIFT_CONTROL), # middle_drag Shift Control 33+4+ +16=53
+ (57, 'M') : (MIDDLE, MOUSE_MOVE, ALT_CONTROL), # middle_drag Alt Control 33+ +8+16=57
+ (61, 'M') : (MIDDLE, MOUSE_MOVE, SHIFT_ALT_CONTROL), # middle_drag Shift Alt Control 33+4+8+16=61
+
+ (34, 'M') : (RIGHT, MOUSE_MOVE, NO_MODIFIER), # right_drag 34+ + + =34
+ (38, 'M') : (RIGHT, MOUSE_MOVE, SHIFT), # right_drag Shift 34+4+ + =38
+ (42, 'M') : (RIGHT, MOUSE_MOVE, ALT), # right_drag Alt 34+ +8+ =42
+ (46, 'M') : (RIGHT, MOUSE_MOVE, SHIFT_ALT), # right_drag Shift Alt 34+4+8+ =46
+ (50, 'M') : (RIGHT, MOUSE_MOVE, CONTROL), # right_drag Control 34+ + +16=50
+ (54, 'M') : (RIGHT, MOUSE_MOVE, SHIFT_CONTROL), # right_drag Shift Control 34+4+ +16=54
+ (58, 'M') : (RIGHT, MOUSE_MOVE, ALT_CONTROL), # right_drag Alt Control 34+ +8+16=58
+ (62, 'M') : (RIGHT, MOUSE_MOVE, SHIFT_ALT_CONTROL), # right_drag Shift Alt Control 34+4+8+16=62
+
+ (35, 'M') : (NO_BUTTON, MOUSE_MOVE, NO_MODIFIER), # none_drag 35+ + + =35
+ (39, 'M') : (NO_BUTTON, MOUSE_MOVE, SHIFT), # none_drag Shift 35+4+ + =39
+ (43, 'M') : (NO_BUTTON, MOUSE_MOVE, ALT), # none_drag Alt 35+ +8+ =43
+ (47, 'M') : (NO_BUTTON, MOUSE_MOVE, SHIFT_ALT), # none_drag Shift Alt 35+4+8+ =47
+ (51, 'M') : (NO_BUTTON, MOUSE_MOVE, CONTROL), # none_drag Control 35+ + +16=51
+ (55, 'M') : (NO_BUTTON, MOUSE_MOVE, SHIFT_CONTROL), # none_drag Shift Control 35+4+ +16=55
+ (59, 'M') : (NO_BUTTON, MOUSE_MOVE, ALT_CONTROL), # none_drag Alt Control 35+ +8+16=59
+ (63, 'M') : (NO_BUTTON, MOUSE_MOVE, SHIFT_ALT_CONTROL), # none_drag Shift Alt Control 35+4+8+16=63
+
+ (64, 'M') : (NO_BUTTON, SCROLL_UP, NO_MODIFIER), # scroll_up 64+ + + =64
+ (68, 'M') : (NO_BUTTON, SCROLL_UP, SHIFT), # scroll_up Shift 64+4+ + =68
+ (72, 'M') : (NO_BUTTON, SCROLL_UP, ALT), # scroll_up Alt 64+ +8+ =72
+ (76, 'M') : (NO_BUTTON, SCROLL_UP, SHIFT_ALT), # scroll_up Shift Alt 64+4+8+ =76
+ (80, 'M') : (NO_BUTTON, SCROLL_UP, CONTROL), # scroll_up Control 64+ + +16=80
+ (84, 'M') : (NO_BUTTON, SCROLL_UP, SHIFT_CONTROL), # scroll_up Shift Control 64+4+ +16=84
+ (88, 'M') : (NO_BUTTON, SCROLL_UP, ALT_CONTROL), # scroll_up Alt Control 64+ +8+16=88
+ (92, 'M') : (NO_BUTTON, SCROLL_UP, SHIFT_ALT_CONTROL), # scroll_up Shift Alt Control 64+4+8+16=92
+
+ (65, 'M') : (NO_BUTTON, SCROLL_DOWN, NO_MODIFIER), # scroll_down 64+ + + =65
+ (69, 'M') : (NO_BUTTON, SCROLL_DOWN, SHIFT), # scroll_down Shift 64+4+ + =69
+ (73, 'M') : (NO_BUTTON, SCROLL_DOWN, ALT), # scroll_down Alt 64+ +8+ =73
+ (77, 'M') : (NO_BUTTON, SCROLL_DOWN, SHIFT_ALT), # scroll_down Shift Alt 64+4+8+ =77
+ (81, 'M') : (NO_BUTTON, SCROLL_DOWN, CONTROL), # scroll_down Control 64+ + +16=81
+ (85, 'M') : (NO_BUTTON, SCROLL_DOWN, SHIFT_CONTROL), # scroll_down Shift Control 64+4+ +16=85
+ (89, 'M') : (NO_BUTTON, SCROLL_DOWN, ALT_CONTROL), # scroll_down Alt Control 64+ +8+16=89
+ (93, 'M') : (NO_BUTTON, SCROLL_DOWN, SHIFT_ALT_CONTROL), # scroll_down Shift Alt Control 64+4+8+16=93
+}
+
+typical_mouse_events = {
+ 32: (LEFT , MOUSE_DOWN , UNKNOWN_MODIFIER),
+ 33: (MIDDLE , MOUSE_DOWN , UNKNOWN_MODIFIER),
+ 34: (RIGHT , MOUSE_DOWN , UNKNOWN_MODIFIER),
+ 35: (UNKNOWN_BUTTON , MOUSE_UP , UNKNOWN_MODIFIER),
+
+ 64: (LEFT , MOUSE_MOVE , UNKNOWN_MODIFIER),
+ 65: (MIDDLE , MOUSE_MOVE , UNKNOWN_MODIFIER),
+ 66: (RIGHT , MOUSE_MOVE , UNKNOWN_MODIFIER),
+ 67: (NO_BUTTON , MOUSE_MOVE , UNKNOWN_MODIFIER),
+
+ 96: (NO_BUTTON , SCROLL_UP , UNKNOWN_MODIFIER),
+ 97: (NO_BUTTON , SCROLL_DOWN, UNKNOWN_MODIFIER),
+}
+
+urxvt_mouse_events={
+ 32: (UNKNOWN_BUTTON, MOUSE_DOWN , UNKNOWN_MODIFIER),
+ 35: (UNKNOWN_BUTTON, MOUSE_UP , UNKNOWN_MODIFIER),
+ 96: (NO_BUTTON , SCROLL_UP , UNKNOWN_MODIFIER),
+ 97: (NO_BUTTON , SCROLL_DOWN, UNKNOWN_MODIFIER),
+}
+# fmt:on
+
+
+def load_mouse_bindings() -> KeyBindings:
+ """
+ Key bindings, required for mouse support.
+ (Mouse events enter through the key binding system.)
+ """
+ key_bindings = KeyBindings()
+
+ @key_bindings.add(Keys.Vt100MouseEvent)
+ def _(event: E) -> "NotImplementedOrNone":
+ """
+ Handling of incoming mouse event.
+ """
+ # TypicaL: "eSC[MaB*"
+ # Urxvt: "Esc[96;14;13M"
+ # Xterm SGR: "Esc[<64;85;12M"
+
+ # Parse incoming packet.
+ if event.data[2] == "M":
+ # Typical.
+ mouse_event, x, y = map(ord, event.data[3:])
+
+ # TODO: Is it possible to add modifiers here?
+ mouse_button, mouse_event_type, mouse_modifiers = typical_mouse_events[
+ mouse_event
+ ]
+
+ # Handle situations where `PosixStdinReader` used surrogateescapes.
+ if x >= 0xDC00:
+ x -= 0xDC00
+ if y >= 0xDC00:
+ y -= 0xDC00
+
+ x -= 32
+ y -= 32
+ else:
+ # Urxvt and Xterm SGR.
+ # When the '<' is not present, we are not using the Xterm SGR mode,
+ # but Urxvt instead.
+ data = event.data[2:]
+ if data[:1] == "<":
+ sgr = True
+ data = data[1:]
+ else:
+ sgr = False
+
+ # Extract coordinates.
+ mouse_event, x, y = map(int, data[:-1].split(";"))
+ m = data[-1]
+
+ # Parse event type.
+ if sgr:
+ try:
+ (
+ mouse_button,
+ mouse_event_type,
+ mouse_modifiers,
+ ) = xterm_sgr_mouse_events[mouse_event, m]
+ except KeyError:
+ return NotImplemented
+
+ else:
+ # Some other terminals, like urxvt, Hyper terminal, ...
+ (
+ mouse_button,
+ mouse_event_type,
+ mouse_modifiers,
+ ) = urxvt_mouse_events.get(
+ mouse_event, (UNKNOWN_BUTTON, MOUSE_MOVE, UNKNOWN_MODIFIER)
+ )
+
+ x -= 1
+ y -= 1
+
+ # Only handle mouse events when we know the window height.
+ if event.app.renderer.height_is_known and mouse_event_type is not None:
+ # Take region above the layout into account. The reported
+ # coordinates are absolute to the visible part of the terminal.
+ from prompt_toolkit.renderer import HeightIsUnknownError
+
+ try:
+ y -= event.app.renderer.rows_above_layout
+ except HeightIsUnknownError:
+ return NotImplemented
+
+ # Call the mouse handler from the renderer.
+
+ # Note: This can return `NotImplemented` if no mouse handler was
+ # found for this position, or if no repainting needs to
+ # happen. this way, we avoid excessive repaints during mouse
+ # movements.
+ handler = event.app.renderer.mouse_handlers.mouse_handlers[y][x]
+ return handler(
+ MouseEvent(
+ position=Point(x=x, y=y),
+ event_type=mouse_event_type,
+ button=mouse_button,
+ modifiers=mouse_modifiers,
+ )
+ )
+
+ return NotImplemented
+
+ @key_bindings.add(Keys.ScrollUp)
+ def _scroll_up(event: E) -> None:
+ """
+ Scroll up event without cursor position.
+ """
+ # We don't receive a cursor position, so we don't know which window to
+ # scroll. Just send an 'up' key press instead.
+ event.key_processor.feed(KeyPress(Keys.Up), first=True)
+
+ @key_bindings.add(Keys.ScrollDown)
+ def _scroll_down(event: E) -> None:
+ """
+ Scroll down event without cursor position.
+ """
+ event.key_processor.feed(KeyPress(Keys.Down), first=True)
+
+ @key_bindings.add(Keys.WindowsMouseEvent)
+ def _mouse(event: E) -> "NotImplementedOrNone":
+ """
+ Handling of mouse events for Windows.
+ """
+ # This key binding should only exist for Windows.
+ if sys.platform == "win32":
+ # Parse data.
+ pieces = event.data.split(";")
+
+ button = MouseButton(pieces[0])
+ event_type = MouseEventType(pieces[1])
+ x = int(pieces[2])
+ y = int(pieces[3])
+
+ # Make coordinates absolute to the visible part of the terminal.
+ output = event.app.renderer.output
+
+ from prompt_toolkit.output.win32 import Win32Output
+ from prompt_toolkit.output.windows10 import Windows10_Output
+
+ if isinstance(output, (Win32Output, Windows10_Output)):
+ screen_buffer_info = output.get_win32_screen_buffer_info()
+ rows_above_cursor = (
+ screen_buffer_info.dwCursorPosition.Y
+ - event.app.renderer._cursor_pos.y
+ )
+ y -= rows_above_cursor
+
+ # Call the mouse event handler.
+ # (Can return `NotImplemented`.)
+ handler = event.app.renderer.mouse_handlers.mouse_handlers[y][x]
+
+ return handler(
+ MouseEvent(
+ position=Point(x=x, y=y),
+ event_type=event_type,
+ button=button,
+ modifiers=UNKNOWN_MODIFIER,
+ )
+ )
+
+ # No mouse handler found. Return `NotImplemented` so that we don't
+ # invalidate the UI.
+ return NotImplemented
+
+ return key_bindings
diff --git a/src/prompt_toolkit/key_binding/bindings/named_commands.py b/src/prompt_toolkit/key_binding/bindings/named_commands.py
new file mode 100644
index 0000000..e0796ef
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/named_commands.py
@@ -0,0 +1,687 @@
+"""
+Key bindings which are also known by GNU Readline by the given names.
+
+See: http://www.delorie.com/gnu/docs/readline/rlman_13.html
+"""
+from typing import Callable, Dict, TypeVar, Union, cast
+
+from prompt_toolkit.document import Document
+from prompt_toolkit.enums import EditingMode
+from prompt_toolkit.key_binding.key_bindings import Binding, key_binding
+from prompt_toolkit.key_binding.key_processor import KeyPress, KeyPressEvent
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.layout.controls import BufferControl
+from prompt_toolkit.search import SearchDirection
+from prompt_toolkit.selection import PasteMode
+
+from .completion import display_completions_like_readline, generate_completions
+
+__all__ = [
+ "get_by_name",
+]
+
+
+# Typing.
+_Handler = Callable[[KeyPressEvent], None]
+_HandlerOrBinding = Union[_Handler, Binding]
+_T = TypeVar("_T", bound=_HandlerOrBinding)
+E = KeyPressEvent
+
+
+# Registry that maps the Readline command names to their handlers.
+_readline_commands: Dict[str, Binding] = {}
+
+
+def register(name: str) -> Callable[[_T], _T]:
+ """
+ Store handler in the `_readline_commands` dictionary.
+ """
+
+ def decorator(handler: _T) -> _T:
+ "`handler` is a callable or Binding."
+ if isinstance(handler, Binding):
+ _readline_commands[name] = handler
+ else:
+ _readline_commands[name] = key_binding()(cast(_Handler, handler))
+
+ return handler
+
+ return decorator
+
+
+def get_by_name(name: str) -> Binding:
+ """
+ Return the handler for the (Readline) command with the given name.
+ """
+ try:
+ return _readline_commands[name]
+ except KeyError as e:
+ raise KeyError("Unknown Readline command: %r" % name) from e
+
+
+#
+# Commands for moving
+# See: http://www.delorie.com/gnu/docs/readline/rlman_14.html
+#
+
+
+@register("beginning-of-buffer")
+def beginning_of_buffer(event: E) -> None:
+ """
+ Move to the start of the buffer.
+ """
+ buff = event.current_buffer
+ buff.cursor_position = 0
+
+
+@register("end-of-buffer")
+def end_of_buffer(event: E) -> None:
+ """
+ Move to the end of the buffer.
+ """
+ buff = event.current_buffer
+ buff.cursor_position = len(buff.text)
+
+
+@register("beginning-of-line")
+def beginning_of_line(event: E) -> None:
+ """
+ Move to the start of the current line.
+ """
+ buff = event.current_buffer
+ buff.cursor_position += buff.document.get_start_of_line_position(
+ after_whitespace=False
+ )
+
+
+@register("end-of-line")
+def end_of_line(event: E) -> None:
+ """
+ Move to the end of the line.
+ """
+ buff = event.current_buffer
+ buff.cursor_position += buff.document.get_end_of_line_position()
+
+
+@register("forward-char")
+def forward_char(event: E) -> None:
+ """
+ Move forward a character.
+ """
+ buff = event.current_buffer
+ buff.cursor_position += buff.document.get_cursor_right_position(count=event.arg)
+
+
+@register("backward-char")
+def backward_char(event: E) -> None:
+ "Move back a character."
+ buff = event.current_buffer
+ buff.cursor_position += buff.document.get_cursor_left_position(count=event.arg)
+
+
+@register("forward-word")
+def forward_word(event: E) -> None:
+ """
+ Move forward to the end of the next word. Words are composed of letters and
+ digits.
+ """
+ buff = event.current_buffer
+ pos = buff.document.find_next_word_ending(count=event.arg)
+
+ if pos:
+ buff.cursor_position += pos
+
+
+@register("backward-word")
+def backward_word(event: E) -> None:
+ """
+ Move back to the start of the current or previous word. Words are composed
+ of letters and digits.
+ """
+ buff = event.current_buffer
+ pos = buff.document.find_previous_word_beginning(count=event.arg)
+
+ if pos:
+ buff.cursor_position += pos
+
+
+@register("clear-screen")
+def clear_screen(event: E) -> None:
+ """
+ Clear the screen and redraw everything at the top of the screen.
+ """
+ event.app.renderer.clear()
+
+
+@register("redraw-current-line")
+def redraw_current_line(event: E) -> None:
+ """
+ Refresh the current line.
+ (Readline defines this command, but prompt-toolkit doesn't have it.)
+ """
+ pass
+
+
+#
+# Commands for manipulating the history.
+# See: http://www.delorie.com/gnu/docs/readline/rlman_15.html
+#
+
+
+@register("accept-line")
+def accept_line(event: E) -> None:
+ """
+ Accept the line regardless of where the cursor is.
+ """
+ event.current_buffer.validate_and_handle()
+
+
+@register("previous-history")
+def previous_history(event: E) -> None:
+ """
+ Move `back` through the history list, fetching the previous command.
+ """
+ event.current_buffer.history_backward(count=event.arg)
+
+
+@register("next-history")
+def next_history(event: E) -> None:
+ """
+ Move `forward` through the history list, fetching the next command.
+ """
+ event.current_buffer.history_forward(count=event.arg)
+
+
+@register("beginning-of-history")
+def beginning_of_history(event: E) -> None:
+ """
+ Move to the first line in the history.
+ """
+ event.current_buffer.go_to_history(0)
+
+
+@register("end-of-history")
+def end_of_history(event: E) -> None:
+ """
+ Move to the end of the input history, i.e., the line currently being entered.
+ """
+ event.current_buffer.history_forward(count=10**100)
+ buff = event.current_buffer
+ buff.go_to_history(len(buff._working_lines) - 1)
+
+
+@register("reverse-search-history")
+def reverse_search_history(event: E) -> None:
+ """
+ Search backward starting at the current line and moving `up` through
+ the history as necessary. This is an incremental search.
+ """
+ control = event.app.layout.current_control
+
+ if isinstance(control, BufferControl) and control.search_buffer_control:
+ event.app.current_search_state.direction = SearchDirection.BACKWARD
+ event.app.layout.current_control = control.search_buffer_control
+
+
+#
+# Commands for changing text
+#
+
+
+@register("end-of-file")
+def end_of_file(event: E) -> None:
+ """
+ Exit.
+ """
+ event.app.exit()
+
+
+@register("delete-char")
+def delete_char(event: E) -> None:
+ """
+ Delete character before the cursor.
+ """
+ deleted = event.current_buffer.delete(count=event.arg)
+ if not deleted:
+ event.app.output.bell()
+
+
+@register("backward-delete-char")
+def backward_delete_char(event: E) -> None:
+ """
+ Delete the character behind the cursor.
+ """
+ if event.arg < 0:
+ # When a negative argument has been given, this should delete in front
+ # of the cursor.
+ deleted = event.current_buffer.delete(count=-event.arg)
+ else:
+ deleted = event.current_buffer.delete_before_cursor(count=event.arg)
+
+ if not deleted:
+ event.app.output.bell()
+
+
+@register("self-insert")
+def self_insert(event: E) -> None:
+ """
+ Insert yourself.
+ """
+ event.current_buffer.insert_text(event.data * event.arg)
+
+
+@register("transpose-chars")
+def transpose_chars(event: E) -> None:
+ """
+ Emulate Emacs transpose-char behavior: at the beginning of the buffer,
+ do nothing. At the end of a line or buffer, swap the characters before
+ the cursor. Otherwise, move the cursor right, and then swap the
+ characters before the cursor.
+ """
+ b = event.current_buffer
+ p = b.cursor_position
+ if p == 0:
+ return
+ elif p == len(b.text) or b.text[p] == "\n":
+ b.swap_characters_before_cursor()
+ else:
+ b.cursor_position += b.document.get_cursor_right_position()
+ b.swap_characters_before_cursor()
+
+
+@register("uppercase-word")
+def uppercase_word(event: E) -> None:
+ """
+ Uppercase the current (or following) word.
+ """
+ buff = event.current_buffer
+
+ for i in range(event.arg):
+ pos = buff.document.find_next_word_ending()
+ words = buff.document.text_after_cursor[:pos]
+ buff.insert_text(words.upper(), overwrite=True)
+
+
+@register("downcase-word")
+def downcase_word(event: E) -> None:
+ """
+ Lowercase the current (or following) word.
+ """
+ buff = event.current_buffer
+
+ for i in range(event.arg): # XXX: not DRY: see meta_c and meta_u!!
+ pos = buff.document.find_next_word_ending()
+ words = buff.document.text_after_cursor[:pos]
+ buff.insert_text(words.lower(), overwrite=True)
+
+
+@register("capitalize-word")
+def capitalize_word(event: E) -> None:
+ """
+ Capitalize the current (or following) word.
+ """
+ buff = event.current_buffer
+
+ for i in range(event.arg):
+ pos = buff.document.find_next_word_ending()
+ words = buff.document.text_after_cursor[:pos]
+ buff.insert_text(words.title(), overwrite=True)
+
+
+@register("quoted-insert")
+def quoted_insert(event: E) -> None:
+ """
+ Add the next character typed to the line verbatim. This is how to insert
+ key sequences like C-q, for example.
+ """
+ event.app.quoted_insert = True
+
+
+#
+# Killing and yanking.
+#
+
+
+@register("kill-line")
+def kill_line(event: E) -> None:
+ """
+ Kill the text from the cursor to the end of the line.
+
+ If we are at the end of the line, this should remove the newline.
+ (That way, it is possible to delete multiple lines by executing this
+ command multiple times.)
+ """
+ buff = event.current_buffer
+ if event.arg < 0:
+ deleted = buff.delete_before_cursor(
+ count=-buff.document.get_start_of_line_position()
+ )
+ else:
+ if buff.document.current_char == "\n":
+ deleted = buff.delete(1)
+ else:
+ deleted = buff.delete(count=buff.document.get_end_of_line_position())
+ event.app.clipboard.set_text(deleted)
+
+
+@register("kill-word")
+def kill_word(event: E) -> None:
+ """
+ Kill from point to the end of the current word, or if between words, to the
+ end of the next word. Word boundaries are the same as forward-word.
+ """
+ buff = event.current_buffer
+ pos = buff.document.find_next_word_ending(count=event.arg)
+
+ if pos:
+ deleted = buff.delete(count=pos)
+
+ if event.is_repeat:
+ deleted = event.app.clipboard.get_data().text + deleted
+
+ event.app.clipboard.set_text(deleted)
+
+
+@register("unix-word-rubout")
+def unix_word_rubout(event: E, WORD: bool = True) -> None:
+ """
+ Kill the word behind point, using whitespace as a word boundary.
+ Usually bound to ControlW.
+ """
+ buff = event.current_buffer
+ pos = buff.document.find_start_of_previous_word(count=event.arg, WORD=WORD)
+
+ if pos is None:
+ # Nothing found? delete until the start of the document. (The
+ # input starts with whitespace and no words were found before the
+ # cursor.)
+ pos = -buff.cursor_position
+
+ if pos:
+ deleted = buff.delete_before_cursor(count=-pos)
+
+ # If the previous key press was also Control-W, concatenate deleted
+ # text.
+ if event.is_repeat:
+ deleted += event.app.clipboard.get_data().text
+
+ event.app.clipboard.set_text(deleted)
+ else:
+ # Nothing to delete. Bell.
+ event.app.output.bell()
+
+
+@register("backward-kill-word")
+def backward_kill_word(event: E) -> None:
+ """
+ Kills the word before point, using "not a letter nor a digit" as a word boundary.
+ Usually bound to M-Del or M-Backspace.
+ """
+ unix_word_rubout(event, WORD=False)
+
+
+@register("delete-horizontal-space")
+def delete_horizontal_space(event: E) -> None:
+ """
+ Delete all spaces and tabs around point.
+ """
+ buff = event.current_buffer
+ text_before_cursor = buff.document.text_before_cursor
+ text_after_cursor = buff.document.text_after_cursor
+
+ delete_before = len(text_before_cursor) - len(text_before_cursor.rstrip("\t "))
+ delete_after = len(text_after_cursor) - len(text_after_cursor.lstrip("\t "))
+
+ buff.delete_before_cursor(count=delete_before)
+ buff.delete(count=delete_after)
+
+
+@register("unix-line-discard")
+def unix_line_discard(event: E) -> None:
+ """
+ Kill backward from the cursor to the beginning of the current line.
+ """
+ buff = event.current_buffer
+
+ if buff.document.cursor_position_col == 0 and buff.document.cursor_position > 0:
+ buff.delete_before_cursor(count=1)
+ else:
+ deleted = buff.delete_before_cursor(
+ count=-buff.document.get_start_of_line_position()
+ )
+ event.app.clipboard.set_text(deleted)
+
+
+@register("yank")
+def yank(event: E) -> None:
+ """
+ Paste before cursor.
+ """
+ event.current_buffer.paste_clipboard_data(
+ event.app.clipboard.get_data(), count=event.arg, paste_mode=PasteMode.EMACS
+ )
+
+
+@register("yank-nth-arg")
+def yank_nth_arg(event: E) -> None:
+ """
+ Insert the first argument of the previous command. With an argument, insert
+ the nth word from the previous command (start counting at 0).
+ """
+ n = event.arg if event.arg_present else None
+ event.current_buffer.yank_nth_arg(n)
+
+
+@register("yank-last-arg")
+def yank_last_arg(event: E) -> None:
+ """
+ Like `yank_nth_arg`, but if no argument has been given, yank the last word
+ of each line.
+ """
+ n = event.arg if event.arg_present else None
+ event.current_buffer.yank_last_arg(n)
+
+
+@register("yank-pop")
+def yank_pop(event: E) -> None:
+ """
+ Rotate the kill ring, and yank the new top. Only works following yank or
+ yank-pop.
+ """
+ buff = event.current_buffer
+ doc_before_paste = buff.document_before_paste
+ clipboard = event.app.clipboard
+
+ if doc_before_paste is not None:
+ buff.document = doc_before_paste
+ clipboard.rotate()
+ buff.paste_clipboard_data(clipboard.get_data(), paste_mode=PasteMode.EMACS)
+
+
+#
+# Completion.
+#
+
+
+@register("complete")
+def complete(event: E) -> None:
+ """
+ Attempt to perform completion.
+ """
+ display_completions_like_readline(event)
+
+
+@register("menu-complete")
+def menu_complete(event: E) -> None:
+ """
+ Generate completions, or go to the next completion. (This is the default
+ way of completing input in prompt_toolkit.)
+ """
+ generate_completions(event)
+
+
+@register("menu-complete-backward")
+def menu_complete_backward(event: E) -> None:
+ """
+ Move backward through the list of possible completions.
+ """
+ event.current_buffer.complete_previous()
+
+
+#
+# Keyboard macros.
+#
+
+
+@register("start-kbd-macro")
+def start_kbd_macro(event: E) -> None:
+ """
+ Begin saving the characters typed into the current keyboard macro.
+ """
+ event.app.emacs_state.start_macro()
+
+
+@register("end-kbd-macro")
+def end_kbd_macro(event: E) -> None:
+ """
+ Stop saving the characters typed into the current keyboard macro and save
+ the definition.
+ """
+ event.app.emacs_state.end_macro()
+
+
+@register("call-last-kbd-macro")
+@key_binding(record_in_macro=False)
+def call_last_kbd_macro(event: E) -> None:
+ """
+ Re-execute the last keyboard macro defined, by making the characters in the
+ macro appear as if typed at the keyboard.
+
+ Notice that we pass `record_in_macro=False`. This ensures that the 'c-x e'
+ key sequence doesn't appear in the recording itself. This function inserts
+ the body of the called macro back into the KeyProcessor, so these keys will
+ be added later on to the macro of their handlers have `record_in_macro=True`.
+ """
+ # Insert the macro.
+ macro = event.app.emacs_state.macro
+
+ if macro:
+ event.app.key_processor.feed_multiple(macro, first=True)
+
+
+@register("print-last-kbd-macro")
+def print_last_kbd_macro(event: E) -> None:
+ """
+ Print the last keyboard macro.
+ """
+ # TODO: Make the format suitable for the inputrc file.
+ def print_macro() -> None:
+ macro = event.app.emacs_state.macro
+ if macro:
+ for k in macro:
+ print(k)
+
+ from prompt_toolkit.application.run_in_terminal import run_in_terminal
+
+ run_in_terminal(print_macro)
+
+
+#
+# Miscellaneous Commands.
+#
+
+
+@register("undo")
+def undo(event: E) -> None:
+ """
+ Incremental undo.
+ """
+ event.current_buffer.undo()
+
+
+@register("insert-comment")
+def insert_comment(event: E) -> None:
+ """
+ Without numeric argument, comment all lines.
+ With numeric argument, uncomment all lines.
+ In any case accept the input.
+ """
+ buff = event.current_buffer
+
+ # Transform all lines.
+ if event.arg != 1:
+
+ def change(line: str) -> str:
+ return line[1:] if line.startswith("#") else line
+
+ else:
+
+ def change(line: str) -> str:
+ return "#" + line
+
+ buff.document = Document(
+ text="\n".join(map(change, buff.text.splitlines())), cursor_position=0
+ )
+
+ # Accept input.
+ buff.validate_and_handle()
+
+
+@register("vi-editing-mode")
+def vi_editing_mode(event: E) -> None:
+ """
+ Switch to Vi editing mode.
+ """
+ event.app.editing_mode = EditingMode.VI
+
+
+@register("emacs-editing-mode")
+def emacs_editing_mode(event: E) -> None:
+ """
+ Switch to Emacs editing mode.
+ """
+ event.app.editing_mode = EditingMode.EMACS
+
+
+@register("prefix-meta")
+def prefix_meta(event: E) -> None:
+ """
+ Metafy the next character typed. This is for keyboards without a meta key.
+
+ Sometimes people also want to bind other keys to Meta, e.g. 'jj'::
+
+ key_bindings.add_key_binding('j', 'j', filter=ViInsertMode())(prefix_meta)
+ """
+ # ('first' should be true, because we want to insert it at the current
+ # position in the queue.)
+ event.app.key_processor.feed(KeyPress(Keys.Escape), first=True)
+
+
+@register("operate-and-get-next")
+def operate_and_get_next(event: E) -> None:
+ """
+ Accept the current line for execution and fetch the next line relative to
+ the current line from the history for editing.
+ """
+ buff = event.current_buffer
+ new_index = buff.working_index + 1
+
+ # Accept the current input. (This will also redraw the interface in the
+ # 'done' state.)
+ buff.validate_and_handle()
+
+ # Set the new index at the start of the next run.
+ def set_working_index() -> None:
+ if new_index < len(buff._working_lines):
+ buff.working_index = new_index
+
+ event.app.pre_run_callables.append(set_working_index)
+
+
+@register("edit-and-execute-command")
+def edit_and_execute(event: E) -> None:
+ """
+ Invoke an editor on the current command line, and accept the result.
+ """
+ buff = event.current_buffer
+ buff.open_in_editor(validate_and_handle=True)
diff --git a/src/prompt_toolkit/key_binding/bindings/open_in_editor.py b/src/prompt_toolkit/key_binding/bindings/open_in_editor.py
new file mode 100644
index 0000000..f8699f4
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/open_in_editor.py
@@ -0,0 +1,49 @@
+"""
+Open in editor key bindings.
+"""
+from prompt_toolkit.filters import emacs_mode, has_selection, vi_navigation_mode
+
+from ..key_bindings import KeyBindings, KeyBindingsBase, merge_key_bindings
+from .named_commands import get_by_name
+
+__all__ = [
+ "load_open_in_editor_bindings",
+ "load_emacs_open_in_editor_bindings",
+ "load_vi_open_in_editor_bindings",
+]
+
+
+def load_open_in_editor_bindings() -> KeyBindingsBase:
+ """
+ Load both the Vi and emacs key bindings for handling edit-and-execute-command.
+ """
+ return merge_key_bindings(
+ [
+ load_emacs_open_in_editor_bindings(),
+ load_vi_open_in_editor_bindings(),
+ ]
+ )
+
+
+def load_emacs_open_in_editor_bindings() -> KeyBindings:
+ """
+ Pressing C-X C-E will open the buffer in an external editor.
+ """
+ key_bindings = KeyBindings()
+
+ key_bindings.add("c-x", "c-e", filter=emacs_mode & ~has_selection)(
+ get_by_name("edit-and-execute-command")
+ )
+
+ return key_bindings
+
+
+def load_vi_open_in_editor_bindings() -> KeyBindings:
+ """
+ Pressing 'v' in navigation mode will open the buffer in an external editor.
+ """
+ key_bindings = KeyBindings()
+ key_bindings.add("v", filter=vi_navigation_mode)(
+ get_by_name("edit-and-execute-command")
+ )
+ return key_bindings
diff --git a/src/prompt_toolkit/key_binding/bindings/page_navigation.py b/src/prompt_toolkit/key_binding/bindings/page_navigation.py
new file mode 100644
index 0000000..4d531c0
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/page_navigation.py
@@ -0,0 +1,82 @@
+"""
+Key bindings for extra page navigation: bindings for up/down scrolling through
+long pages, like in Emacs or Vi.
+"""
+from prompt_toolkit.filters import buffer_has_focus, emacs_mode, vi_mode
+from prompt_toolkit.key_binding.key_bindings import (
+ ConditionalKeyBindings,
+ KeyBindings,
+ KeyBindingsBase,
+ merge_key_bindings,
+)
+
+from .scroll import (
+ scroll_backward,
+ scroll_forward,
+ scroll_half_page_down,
+ scroll_half_page_up,
+ scroll_one_line_down,
+ scroll_one_line_up,
+ scroll_page_down,
+ scroll_page_up,
+)
+
+__all__ = [
+ "load_page_navigation_bindings",
+ "load_emacs_page_navigation_bindings",
+ "load_vi_page_navigation_bindings",
+]
+
+
+def load_page_navigation_bindings() -> KeyBindingsBase:
+ """
+ Load both the Vi and Emacs bindings for page navigation.
+ """
+ # Only enable when a `Buffer` is focused, otherwise, we would catch keys
+ # when another widget is focused (like for instance `c-d` in a
+ # ptterm.Terminal).
+ return ConditionalKeyBindings(
+ merge_key_bindings(
+ [
+ load_emacs_page_navigation_bindings(),
+ load_vi_page_navigation_bindings(),
+ ]
+ ),
+ buffer_has_focus,
+ )
+
+
+def load_emacs_page_navigation_bindings() -> KeyBindingsBase:
+ """
+ Key bindings, for scrolling up and down through pages.
+ This are separate bindings, because GNU readline doesn't have them.
+ """
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ handle("c-v")(scroll_page_down)
+ handle("pagedown")(scroll_page_down)
+ handle("escape", "v")(scroll_page_up)
+ handle("pageup")(scroll_page_up)
+
+ return ConditionalKeyBindings(key_bindings, emacs_mode)
+
+
+def load_vi_page_navigation_bindings() -> KeyBindingsBase:
+ """
+ Key bindings, for scrolling up and down through pages.
+ This are separate bindings, because GNU readline doesn't have them.
+ """
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ handle("c-f")(scroll_forward)
+ handle("c-b")(scroll_backward)
+ handle("c-d")(scroll_half_page_down)
+ handle("c-u")(scroll_half_page_up)
+ handle("c-e")(scroll_one_line_down)
+ handle("c-y")(scroll_one_line_up)
+ handle("pagedown")(scroll_page_down)
+ handle("pageup")(scroll_page_up)
+
+ return ConditionalKeyBindings(key_bindings, vi_mode)
diff --git a/src/prompt_toolkit/key_binding/bindings/scroll.py b/src/prompt_toolkit/key_binding/bindings/scroll.py
new file mode 100644
index 0000000..4a43ff5
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/scroll.py
@@ -0,0 +1,187 @@
+"""
+Key bindings, for scrolling up and down through pages.
+
+This are separate bindings, because GNU readline doesn't have them, but
+they are very useful for navigating through long multiline buffers, like in
+Vi, Emacs, etc...
+"""
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+
+__all__ = [
+ "scroll_forward",
+ "scroll_backward",
+ "scroll_half_page_up",
+ "scroll_half_page_down",
+ "scroll_one_line_up",
+ "scroll_one_line_down",
+]
+
+E = KeyPressEvent
+
+
+def scroll_forward(event: E, half: bool = False) -> None:
+ """
+ Scroll window down.
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w and w.render_info:
+ info = w.render_info
+ ui_content = info.ui_content
+
+ # Height to scroll.
+ scroll_height = info.window_height
+ if half:
+ scroll_height //= 2
+
+ # Calculate how many lines is equivalent to that vertical space.
+ y = b.document.cursor_position_row + 1
+ height = 0
+ while y < ui_content.line_count:
+ line_height = info.get_height_for_line(y)
+
+ if height + line_height < scroll_height:
+ height += line_height
+ y += 1
+ else:
+ break
+
+ b.cursor_position = b.document.translate_row_col_to_index(y, 0)
+
+
+def scroll_backward(event: E, half: bool = False) -> None:
+ """
+ Scroll window up.
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w and w.render_info:
+ info = w.render_info
+
+ # Height to scroll.
+ scroll_height = info.window_height
+ if half:
+ scroll_height //= 2
+
+ # Calculate how many lines is equivalent to that vertical space.
+ y = max(0, b.document.cursor_position_row - 1)
+ height = 0
+ while y > 0:
+ line_height = info.get_height_for_line(y)
+
+ if height + line_height < scroll_height:
+ height += line_height
+ y -= 1
+ else:
+ break
+
+ b.cursor_position = b.document.translate_row_col_to_index(y, 0)
+
+
+def scroll_half_page_down(event: E) -> None:
+ """
+ Same as ControlF, but only scroll half a page.
+ """
+ scroll_forward(event, half=True)
+
+
+def scroll_half_page_up(event: E) -> None:
+ """
+ Same as ControlB, but only scroll half a page.
+ """
+ scroll_backward(event, half=True)
+
+
+def scroll_one_line_down(event: E) -> None:
+ """
+ scroll_offset += 1
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w:
+ # When the cursor is at the top, move to the next line. (Otherwise, only scroll.)
+ if w.render_info:
+ info = w.render_info
+
+ if w.vertical_scroll < info.content_height - info.window_height:
+ if info.cursor_position.y <= info.configured_scroll_offsets.top:
+ b.cursor_position += b.document.get_cursor_down_position()
+
+ w.vertical_scroll += 1
+
+
+def scroll_one_line_up(event: E) -> None:
+ """
+ scroll_offset -= 1
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w:
+ # When the cursor is at the bottom, move to the previous line. (Otherwise, only scroll.)
+ if w.render_info:
+ info = w.render_info
+
+ if w.vertical_scroll > 0:
+ first_line_height = info.get_height_for_line(info.first_visible_line())
+
+ cursor_up = info.cursor_position.y - (
+ info.window_height
+ - 1
+ - first_line_height
+ - info.configured_scroll_offsets.bottom
+ )
+
+ # Move cursor up, as many steps as the height of the first line.
+ # TODO: not entirely correct yet, in case of line wrapping and many long lines.
+ for _ in range(max(0, cursor_up)):
+ b.cursor_position += b.document.get_cursor_up_position()
+
+ # Scroll window
+ w.vertical_scroll -= 1
+
+
+def scroll_page_down(event: E) -> None:
+ """
+ Scroll page down. (Prefer the cursor at the top of the page, after scrolling.)
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w and w.render_info:
+ # Scroll down one page.
+ line_index = max(w.render_info.last_visible_line(), w.vertical_scroll + 1)
+ w.vertical_scroll = line_index
+
+ b.cursor_position = b.document.translate_row_col_to_index(line_index, 0)
+ b.cursor_position += b.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+
+def scroll_page_up(event: E) -> None:
+ """
+ Scroll page up. (Prefer the cursor at the bottom of the page, after scrolling.)
+ """
+ w = event.app.layout.current_window
+ b = event.app.current_buffer
+
+ if w and w.render_info:
+ # Put cursor at the first visible line. (But make sure that the cursor
+ # moves at least one line up.)
+ line_index = max(
+ 0,
+ min(w.render_info.first_visible_line(), b.document.cursor_position_row - 1),
+ )
+
+ b.cursor_position = b.document.translate_row_col_to_index(line_index, 0)
+ b.cursor_position += b.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+ # Set the scroll offset. We can safely set it to zero; the Window will
+ # make sure that it scrolls at least until the cursor becomes visible.
+ w.vertical_scroll = 0
diff --git a/src/prompt_toolkit/key_binding/bindings/search.py b/src/prompt_toolkit/key_binding/bindings/search.py
new file mode 100644
index 0000000..06a047e
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/search.py
@@ -0,0 +1,93 @@
+"""
+Search related key bindings.
+"""
+from prompt_toolkit import search
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.filters import Condition, control_is_searchable, is_searching
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+
+from ..key_bindings import key_binding
+
+__all__ = [
+ "abort_search",
+ "accept_search",
+ "start_reverse_incremental_search",
+ "start_forward_incremental_search",
+ "reverse_incremental_search",
+ "forward_incremental_search",
+ "accept_search_and_accept_input",
+]
+
+E = KeyPressEvent
+
+
+@key_binding(filter=is_searching)
+def abort_search(event: E) -> None:
+ """
+ Abort an incremental search and restore the original
+ line.
+ (Usually bound to ControlG/ControlC.)
+ """
+ search.stop_search()
+
+
+@key_binding(filter=is_searching)
+def accept_search(event: E) -> None:
+ """
+ When enter pressed in isearch, quit isearch mode. (Multiline
+ isearch would be too complicated.)
+ (Usually bound to Enter.)
+ """
+ search.accept_search()
+
+
+@key_binding(filter=control_is_searchable)
+def start_reverse_incremental_search(event: E) -> None:
+ """
+ Enter reverse incremental search.
+ (Usually ControlR.)
+ """
+ search.start_search(direction=search.SearchDirection.BACKWARD)
+
+
+@key_binding(filter=control_is_searchable)
+def start_forward_incremental_search(event: E) -> None:
+ """
+ Enter forward incremental search.
+ (Usually ControlS.)
+ """
+ search.start_search(direction=search.SearchDirection.FORWARD)
+
+
+@key_binding(filter=is_searching)
+def reverse_incremental_search(event: E) -> None:
+ """
+ Apply reverse incremental search, but keep search buffer focused.
+ """
+ search.do_incremental_search(search.SearchDirection.BACKWARD, count=event.arg)
+
+
+@key_binding(filter=is_searching)
+def forward_incremental_search(event: E) -> None:
+ """
+ Apply forward incremental search, but keep search buffer focused.
+ """
+ search.do_incremental_search(search.SearchDirection.FORWARD, count=event.arg)
+
+
+@Condition
+def _previous_buffer_is_returnable() -> bool:
+ """
+ True if the previously focused buffer has a return handler.
+ """
+ prev_control = get_app().layout.search_target_buffer_control
+ return bool(prev_control and prev_control.buffer.is_returnable)
+
+
+@key_binding(filter=is_searching & _previous_buffer_is_returnable)
+def accept_search_and_accept_input(event: E) -> None:
+ """
+ Accept the search operation first, then accept the input.
+ """
+ search.accept_search()
+ event.current_buffer.validate_and_handle()
diff --git a/src/prompt_toolkit/key_binding/bindings/vi.py b/src/prompt_toolkit/key_binding/bindings/vi.py
new file mode 100644
index 0000000..9cb075c
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/bindings/vi.py
@@ -0,0 +1,2221 @@
+# pylint: disable=function-redefined
+import codecs
+import string
+from enum import Enum
+from itertools import accumulate
+from typing import Callable, Iterable, List, Optional, Tuple, TypeVar, Union
+
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.buffer import Buffer, indent, reshape_text, unindent
+from prompt_toolkit.clipboard import ClipboardData
+from prompt_toolkit.document import Document
+from prompt_toolkit.filters import (
+ Always,
+ Condition,
+ Filter,
+ has_arg,
+ is_read_only,
+ is_searching,
+)
+from prompt_toolkit.filters.app import (
+ in_paste_mode,
+ is_multiline,
+ vi_digraph_mode,
+ vi_insert_mode,
+ vi_insert_multiple_mode,
+ vi_mode,
+ vi_navigation_mode,
+ vi_recording_macro,
+ vi_replace_mode,
+ vi_replace_single_mode,
+ vi_search_direction_reversed,
+ vi_selection_mode,
+ vi_waiting_for_text_object_mode,
+)
+from prompt_toolkit.input.vt100_parser import Vt100Parser
+from prompt_toolkit.key_binding.digraphs import DIGRAPHS
+from prompt_toolkit.key_binding.key_processor import KeyPress, KeyPressEvent
+from prompt_toolkit.key_binding.vi_state import CharacterFind, InputMode
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.search import SearchDirection
+from prompt_toolkit.selection import PasteMode, SelectionState, SelectionType
+
+from ..key_bindings import ConditionalKeyBindings, KeyBindings, KeyBindingsBase
+from .named_commands import get_by_name
+
+__all__ = [
+ "load_vi_bindings",
+ "load_vi_search_bindings",
+]
+
+E = KeyPressEvent
+
+ascii_lowercase = string.ascii_lowercase
+
+vi_register_names = ascii_lowercase + "0123456789"
+
+
+class TextObjectType(Enum):
+ EXCLUSIVE = "EXCLUSIVE"
+ INCLUSIVE = "INCLUSIVE"
+ LINEWISE = "LINEWISE"
+ BLOCK = "BLOCK"
+
+
+class TextObject:
+ """
+ Return struct for functions wrapped in ``text_object``.
+ Both `start` and `end` are relative to the current cursor position.
+ """
+
+ def __init__(
+ self, start: int, end: int = 0, type: TextObjectType = TextObjectType.EXCLUSIVE
+ ):
+
+ self.start = start
+ self.end = end
+ self.type = type
+
+ @property
+ def selection_type(self) -> SelectionType:
+ if self.type == TextObjectType.LINEWISE:
+ return SelectionType.LINES
+ if self.type == TextObjectType.BLOCK:
+ return SelectionType.BLOCK
+ else:
+ return SelectionType.CHARACTERS
+
+ def sorted(self) -> Tuple[int, int]:
+ """
+ Return a (start, end) tuple where start <= end.
+ """
+ if self.start < self.end:
+ return self.start, self.end
+ else:
+ return self.end, self.start
+
+ def operator_range(self, document: Document) -> Tuple[int, int]:
+ """
+ Return a (start, end) tuple with start <= end that indicates the range
+ operators should operate on.
+ `buffer` is used to get start and end of line positions.
+
+ This should return something that can be used in a slice, so the `end`
+ position is *not* included.
+ """
+ start, end = self.sorted()
+ doc = document
+
+ if (
+ self.type == TextObjectType.EXCLUSIVE
+ and doc.translate_index_to_position(end + doc.cursor_position)[1] == 0
+ ):
+ # If the motion is exclusive and the end of motion is on the first
+ # column, the end position becomes end of previous line.
+ end -= 1
+ if self.type == TextObjectType.INCLUSIVE:
+ end += 1
+ if self.type == TextObjectType.LINEWISE:
+ # Select whole lines
+ row, col = doc.translate_index_to_position(start + doc.cursor_position)
+ start = doc.translate_row_col_to_index(row, 0) - doc.cursor_position
+ row, col = doc.translate_index_to_position(end + doc.cursor_position)
+ end = (
+ doc.translate_row_col_to_index(row, len(doc.lines[row]))
+ - doc.cursor_position
+ )
+ return start, end
+
+ def get_line_numbers(self, buffer: Buffer) -> Tuple[int, int]:
+ """
+ Return a (start_line, end_line) pair.
+ """
+ # Get absolute cursor positions from the text object.
+ from_, to = self.operator_range(buffer.document)
+ from_ += buffer.cursor_position
+ to += buffer.cursor_position
+
+ # Take the start of the lines.
+ from_, _ = buffer.document.translate_index_to_position(from_)
+ to, _ = buffer.document.translate_index_to_position(to)
+
+ return from_, to
+
+ def cut(self, buffer: Buffer) -> Tuple[Document, ClipboardData]:
+ """
+ Turn text object into `ClipboardData` instance.
+ """
+ from_, to = self.operator_range(buffer.document)
+
+ from_ += buffer.cursor_position
+ to += buffer.cursor_position
+
+ # For Vi mode, the SelectionState does include the upper position,
+ # while `self.operator_range` does not. So, go one to the left, unless
+ # we're in the line mode, then we don't want to risk going to the
+ # previous line, and missing one line in the selection.
+ if self.type != TextObjectType.LINEWISE:
+ to -= 1
+
+ document = Document(
+ buffer.text,
+ to,
+ SelectionState(original_cursor_position=from_, type=self.selection_type),
+ )
+
+ new_document, clipboard_data = document.cut_selection()
+ return new_document, clipboard_data
+
+
+# Typevar for any text object function:
+TextObjectFunction = Callable[[E], TextObject]
+_TOF = TypeVar("_TOF", bound=TextObjectFunction)
+
+
+def create_text_object_decorator(
+ key_bindings: KeyBindings,
+) -> Callable[..., Callable[[_TOF], _TOF]]:
+ """
+ Create a decorator that can be used to register Vi text object implementations.
+ """
+
+ def text_object_decorator(
+ *keys: Union[Keys, str],
+ filter: Filter = Always(),
+ no_move_handler: bool = False,
+ no_selection_handler: bool = False,
+ eager: bool = False,
+ ) -> Callable[[_TOF], _TOF]:
+ """
+ Register a text object function.
+
+ Usage::
+
+ @text_object('w', filter=..., no_move_handler=False)
+ def handler(event):
+ # Return a text object for this key.
+ return TextObject(...)
+
+ :param no_move_handler: Disable the move handler in navigation mode.
+ (It's still active in selection mode.)
+ """
+
+ def decorator(text_object_func: _TOF) -> _TOF:
+ @key_bindings.add(
+ *keys, filter=vi_waiting_for_text_object_mode & filter, eager=eager
+ )
+ def _apply_operator_to_text_object(event: E) -> None:
+ # Arguments are multiplied.
+ vi_state = event.app.vi_state
+ event._arg = str((vi_state.operator_arg or 1) * (event.arg or 1))
+
+ # Call the text object handler.
+ text_obj = text_object_func(event)
+
+ # Get the operator function.
+ # (Should never be None here, given the
+ # `vi_waiting_for_text_object_mode` filter state.)
+ operator_func = vi_state.operator_func
+
+ if text_obj is not None and operator_func is not None:
+ # Call the operator function with the text object.
+ operator_func(event, text_obj)
+
+ # Clear operator.
+ event.app.vi_state.operator_func = None
+ event.app.vi_state.operator_arg = None
+
+ # Register a move operation. (Doesn't need an operator.)
+ if not no_move_handler:
+
+ @key_bindings.add(
+ *keys,
+ filter=~vi_waiting_for_text_object_mode
+ & filter
+ & vi_navigation_mode,
+ eager=eager,
+ )
+ def _move_in_navigation_mode(event: E) -> None:
+ """
+ Move handler for navigation mode.
+ """
+ text_object = text_object_func(event)
+ event.current_buffer.cursor_position += text_object.start
+
+ # Register a move selection operation.
+ if not no_selection_handler:
+
+ @key_bindings.add(
+ *keys,
+ filter=~vi_waiting_for_text_object_mode
+ & filter
+ & vi_selection_mode,
+ eager=eager,
+ )
+ def _move_in_selection_mode(event: E) -> None:
+ """
+ Move handler for selection mode.
+ """
+ text_object = text_object_func(event)
+ buff = event.current_buffer
+ selection_state = buff.selection_state
+
+ if selection_state is None:
+ return # Should not happen, because of the `vi_selection_mode` filter.
+
+ # When the text object has both a start and end position, like 'i(' or 'iw',
+ # Turn this into a selection, otherwise the cursor.
+ if text_object.end:
+ # Take selection positions from text object.
+ start, end = text_object.operator_range(buff.document)
+ start += buff.cursor_position
+ end += buff.cursor_position
+
+ selection_state.original_cursor_position = start
+ buff.cursor_position = end
+
+ # Take selection type from text object.
+ if text_object.type == TextObjectType.LINEWISE:
+ selection_state.type = SelectionType.LINES
+ else:
+ selection_state.type = SelectionType.CHARACTERS
+ else:
+ event.current_buffer.cursor_position += text_object.start
+
+ # Make it possible to chain @text_object decorators.
+ return text_object_func
+
+ return decorator
+
+ return text_object_decorator
+
+
+# Typevar for any operator function:
+OperatorFunction = Callable[[E, TextObject], None]
+_OF = TypeVar("_OF", bound=OperatorFunction)
+
+
+def create_operator_decorator(
+ key_bindings: KeyBindings,
+) -> Callable[..., Callable[[_OF], _OF]]:
+ """
+ Create a decorator that can be used for registering Vi operators.
+ """
+
+ def operator_decorator(
+ *keys: Union[Keys, str], filter: Filter = Always(), eager: bool = False
+ ) -> Callable[[_OF], _OF]:
+ """
+ Register a Vi operator.
+
+ Usage::
+
+ @operator('d', filter=...)
+ def handler(event, text_object):
+ # Do something with the text object here.
+ """
+
+ def decorator(operator_func: _OF) -> _OF:
+ @key_bindings.add(
+ *keys,
+ filter=~vi_waiting_for_text_object_mode & filter & vi_navigation_mode,
+ eager=eager,
+ )
+ def _operator_in_navigation(event: E) -> None:
+ """
+ Handle operator in navigation mode.
+ """
+ # When this key binding is matched, only set the operator
+ # function in the ViState. We should execute it after a text
+ # object has been received.
+ event.app.vi_state.operator_func = operator_func
+ event.app.vi_state.operator_arg = event.arg
+
+ @key_bindings.add(
+ *keys,
+ filter=~vi_waiting_for_text_object_mode & filter & vi_selection_mode,
+ eager=eager,
+ )
+ def _operator_in_selection(event: E) -> None:
+ """
+ Handle operator in selection mode.
+ """
+ buff = event.current_buffer
+ selection_state = buff.selection_state
+
+ if selection_state is not None:
+ # Create text object from selection.
+ if selection_state.type == SelectionType.LINES:
+ text_obj_type = TextObjectType.LINEWISE
+ elif selection_state.type == SelectionType.BLOCK:
+ text_obj_type = TextObjectType.BLOCK
+ else:
+ text_obj_type = TextObjectType.INCLUSIVE
+
+ text_object = TextObject(
+ selection_state.original_cursor_position - buff.cursor_position,
+ type=text_obj_type,
+ )
+
+ # Execute operator.
+ operator_func(event, text_object)
+
+ # Quit selection mode.
+ buff.selection_state = None
+
+ return operator_func
+
+ return decorator
+
+ return operator_decorator
+
+
+def load_vi_bindings() -> KeyBindingsBase:
+ """
+ Vi extensions.
+
+ # Overview of Readline Vi commands:
+ # http://www.catonmat.net/download/bash-vi-editing-mode-cheat-sheet.pdf
+ """
+ # Note: Some key bindings have the "~IsReadOnly()" filter added. This
+ # prevents the handler to be executed when the focus is on a
+ # read-only buffer.
+ # This is however only required for those that change the ViState to
+ # INSERT mode. The `Buffer` class itself throws the
+ # `EditReadOnlyBuffer` exception for any text operations which is
+ # handled correctly. There is no need to add "~IsReadOnly" to all key
+ # bindings that do text manipulation.
+
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+
+ # (Note: Always take the navigation bindings in read-only mode, even when
+ # ViState says different.)
+
+ TransformFunction = Tuple[Tuple[str, ...], Filter, Callable[[str], str]]
+
+ vi_transform_functions: List[TransformFunction] = [
+ # Rot 13 transformation
+ (
+ ("g", "?"),
+ Always(),
+ lambda string: codecs.encode(string, "rot_13"),
+ ),
+ # To lowercase
+ (("g", "u"), Always(), lambda string: string.lower()),
+ # To uppercase.
+ (("g", "U"), Always(), lambda string: string.upper()),
+ # Swap case.
+ (("g", "~"), Always(), lambda string: string.swapcase()),
+ (
+ ("~",),
+ Condition(lambda: get_app().vi_state.tilde_operator),
+ lambda string: string.swapcase(),
+ ),
+ ]
+
+ # Insert a character literally (quoted insert).
+ handle("c-v", filter=vi_insert_mode)(get_by_name("quoted-insert"))
+
+ @handle("escape")
+ def _back_to_navigation(event: E) -> None:
+ """
+ Escape goes to vi navigation mode.
+ """
+ buffer = event.current_buffer
+ vi_state = event.app.vi_state
+
+ if vi_state.input_mode in (InputMode.INSERT, InputMode.REPLACE):
+ buffer.cursor_position += buffer.document.get_cursor_left_position()
+
+ vi_state.input_mode = InputMode.NAVIGATION
+
+ if bool(buffer.selection_state):
+ buffer.exit_selection()
+
+ @handle("k", filter=vi_selection_mode)
+ def _up_in_selection(event: E) -> None:
+ """
+ Arrow up in selection mode.
+ """
+ event.current_buffer.cursor_up(count=event.arg)
+
+ @handle("j", filter=vi_selection_mode)
+ def _down_in_selection(event: E) -> None:
+ """
+ Arrow down in selection mode.
+ """
+ event.current_buffer.cursor_down(count=event.arg)
+
+ @handle("up", filter=vi_navigation_mode)
+ @handle("c-p", filter=vi_navigation_mode)
+ def _up_in_navigation(event: E) -> None:
+ """
+ Arrow up and ControlP in navigation mode go up.
+ """
+ event.current_buffer.auto_up(count=event.arg)
+
+ @handle("k", filter=vi_navigation_mode)
+ def _go_up(event: E) -> None:
+ """
+ Go up, but if we enter a new history entry, move to the start of the
+ line.
+ """
+ event.current_buffer.auto_up(
+ count=event.arg, go_to_start_of_line_if_history_changes=True
+ )
+
+ @handle("down", filter=vi_navigation_mode)
+ @handle("c-n", filter=vi_navigation_mode)
+ def _go_down(event: E) -> None:
+ """
+ Arrow down and Control-N in navigation mode.
+ """
+ event.current_buffer.auto_down(count=event.arg)
+
+ @handle("j", filter=vi_navigation_mode)
+ def _go_down2(event: E) -> None:
+ """
+ Go down, but if we enter a new history entry, go to the start of the line.
+ """
+ event.current_buffer.auto_down(
+ count=event.arg, go_to_start_of_line_if_history_changes=True
+ )
+
+ @handle("backspace", filter=vi_navigation_mode)
+ def _go_left(event: E) -> None:
+ """
+ In navigation-mode, move cursor.
+ """
+ event.current_buffer.cursor_position += (
+ event.current_buffer.document.get_cursor_left_position(count=event.arg)
+ )
+
+ @handle("c-n", filter=vi_insert_mode)
+ def _complete_next(event: E) -> None:
+ b = event.current_buffer
+
+ if b.complete_state:
+ b.complete_next()
+ else:
+ b.start_completion(select_first=True)
+
+ @handle("c-p", filter=vi_insert_mode)
+ def _complete_prev(event: E) -> None:
+ """
+ Control-P: To previous completion.
+ """
+ b = event.current_buffer
+
+ if b.complete_state:
+ b.complete_previous()
+ else:
+ b.start_completion(select_last=True)
+
+ @handle("c-g", filter=vi_insert_mode)
+ @handle("c-y", filter=vi_insert_mode)
+ def _accept_completion(event: E) -> None:
+ """
+ Accept current completion.
+ """
+ event.current_buffer.complete_state = None
+
+ @handle("c-e", filter=vi_insert_mode)
+ def _cancel_completion(event: E) -> None:
+ """
+ Cancel completion. Go back to originally typed text.
+ """
+ event.current_buffer.cancel_completion()
+
+ @Condition
+ def is_returnable() -> bool:
+ return get_app().current_buffer.is_returnable
+
+ # In navigation mode, pressing enter will always return the input.
+ handle("enter", filter=vi_navigation_mode & is_returnable)(
+ get_by_name("accept-line")
+ )
+
+ # In insert mode, also accept input when enter is pressed, and the buffer
+ # has been marked as single line.
+ handle("enter", filter=is_returnable & ~is_multiline)(get_by_name("accept-line"))
+
+ @handle("enter", filter=~is_returnable & vi_navigation_mode)
+ def _start_of_next_line(event: E) -> None:
+ """
+ Go to the beginning of next line.
+ """
+ b = event.current_buffer
+ b.cursor_down(count=event.arg)
+ b.cursor_position += b.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+ # ** In navigation mode **
+
+ # List of navigation commands: http://hea-www.harvard.edu/~fine/Tech/vi.html
+
+ @handle("insert", filter=vi_navigation_mode)
+ def _insert_mode(event: E) -> None:
+ """
+ Pressing the Insert key.
+ """
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("insert", filter=vi_insert_mode)
+ def _navigation_mode(event: E) -> None:
+ """
+ Pressing the Insert key.
+ """
+ event.app.vi_state.input_mode = InputMode.NAVIGATION
+
+ @handle("a", filter=vi_navigation_mode & ~is_read_only)
+ # ~IsReadOnly, because we want to stay in navigation mode for
+ # read-only buffers.
+ def _a(event: E) -> None:
+ event.current_buffer.cursor_position += (
+ event.current_buffer.document.get_cursor_right_position()
+ )
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("A", filter=vi_navigation_mode & ~is_read_only)
+ def _A(event: E) -> None:
+ event.current_buffer.cursor_position += (
+ event.current_buffer.document.get_end_of_line_position()
+ )
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("C", filter=vi_navigation_mode & ~is_read_only)
+ def _change_until_end_of_line(event: E) -> None:
+ """
+ Change to end of line.
+ Same as 'c$' (which is implemented elsewhere.)
+ """
+ buffer = event.current_buffer
+
+ deleted = buffer.delete(count=buffer.document.get_end_of_line_position())
+ event.app.clipboard.set_text(deleted)
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("c", "c", filter=vi_navigation_mode & ~is_read_only)
+ @handle("S", filter=vi_navigation_mode & ~is_read_only)
+ def _change_current_line(event: E) -> None: # TODO: implement 'arg'
+ """
+ Change current line
+ """
+ buffer = event.current_buffer
+
+ # We copy the whole line.
+ data = ClipboardData(buffer.document.current_line, SelectionType.LINES)
+ event.app.clipboard.set_data(data)
+
+ # But we delete after the whitespace
+ buffer.cursor_position += buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+ buffer.delete(count=buffer.document.get_end_of_line_position())
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("D", filter=vi_navigation_mode)
+ def _delete_until_end_of_line(event: E) -> None:
+ """
+ Delete from cursor position until the end of the line.
+ """
+ buffer = event.current_buffer
+ deleted = buffer.delete(count=buffer.document.get_end_of_line_position())
+ event.app.clipboard.set_text(deleted)
+
+ @handle("d", "d", filter=vi_navigation_mode)
+ def _delete_line(event: E) -> None:
+ """
+ Delete line. (Or the following 'n' lines.)
+ """
+ buffer = event.current_buffer
+
+ # Split string in before/deleted/after text.
+ lines = buffer.document.lines
+
+ before = "\n".join(lines[: buffer.document.cursor_position_row])
+ deleted = "\n".join(
+ lines[
+ buffer.document.cursor_position_row : buffer.document.cursor_position_row
+ + event.arg
+ ]
+ )
+ after = "\n".join(lines[buffer.document.cursor_position_row + event.arg :])
+
+ # Set new text.
+ if before and after:
+ before = before + "\n"
+
+ # Set text and cursor position.
+ buffer.document = Document(
+ text=before + after,
+ # Cursor At the start of the first 'after' line, after the leading whitespace.
+ cursor_position=len(before) + len(after) - len(after.lstrip(" ")),
+ )
+
+ # Set clipboard data
+ event.app.clipboard.set_data(ClipboardData(deleted, SelectionType.LINES))
+
+ @handle("x", filter=vi_selection_mode)
+ def _cut(event: E) -> None:
+ """
+ Cut selection.
+ ('x' is not an operator.)
+ """
+ clipboard_data = event.current_buffer.cut_selection()
+ event.app.clipboard.set_data(clipboard_data)
+
+ @handle("i", filter=vi_navigation_mode & ~is_read_only)
+ def _i(event: E) -> None:
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("I", filter=vi_navigation_mode & ~is_read_only)
+ def _I(event: E) -> None:
+ event.app.vi_state.input_mode = InputMode.INSERT
+ event.current_buffer.cursor_position += (
+ event.current_buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+ )
+
+ @Condition
+ def in_block_selection() -> bool:
+ buff = get_app().current_buffer
+ return bool(
+ buff.selection_state and buff.selection_state.type == SelectionType.BLOCK
+ )
+
+ @handle("I", filter=in_block_selection & ~is_read_only)
+ def insert_in_block_selection(event: E, after: bool = False) -> None:
+ """
+ Insert in block selection mode.
+ """
+ buff = event.current_buffer
+
+ # Store all cursor positions.
+ positions = []
+
+ if after:
+
+ def get_pos(from_to: Tuple[int, int]) -> int:
+ return from_to[1]
+
+ else:
+
+ def get_pos(from_to: Tuple[int, int]) -> int:
+ return from_to[0]
+
+ for i, from_to in enumerate(buff.document.selection_ranges()):
+ positions.append(get_pos(from_to))
+ if i == 0:
+ buff.cursor_position = get_pos(from_to)
+
+ buff.multiple_cursor_positions = positions
+
+ # Go to 'INSERT_MULTIPLE' mode.
+ event.app.vi_state.input_mode = InputMode.INSERT_MULTIPLE
+ buff.exit_selection()
+
+ @handle("A", filter=in_block_selection & ~is_read_only)
+ def _append_after_block(event: E) -> None:
+ insert_in_block_selection(event, after=True)
+
+ @handle("J", filter=vi_navigation_mode & ~is_read_only)
+ def _join(event: E) -> None:
+ """
+ Join lines.
+ """
+ for i in range(event.arg):
+ event.current_buffer.join_next_line()
+
+ @handle("g", "J", filter=vi_navigation_mode & ~is_read_only)
+ def _join_nospace(event: E) -> None:
+ """
+ Join lines without space.
+ """
+ for i in range(event.arg):
+ event.current_buffer.join_next_line(separator="")
+
+ @handle("J", filter=vi_selection_mode & ~is_read_only)
+ def _join_selection(event: E) -> None:
+ """
+ Join selected lines.
+ """
+ event.current_buffer.join_selected_lines()
+
+ @handle("g", "J", filter=vi_selection_mode & ~is_read_only)
+ def _join_selection_nospace(event: E) -> None:
+ """
+ Join selected lines without space.
+ """
+ event.current_buffer.join_selected_lines(separator="")
+
+ @handle("p", filter=vi_navigation_mode)
+ def _paste(event: E) -> None:
+ """
+ Paste after
+ """
+ event.current_buffer.paste_clipboard_data(
+ event.app.clipboard.get_data(),
+ count=event.arg,
+ paste_mode=PasteMode.VI_AFTER,
+ )
+
+ @handle("P", filter=vi_navigation_mode)
+ def _paste_before(event: E) -> None:
+ """
+ Paste before
+ """
+ event.current_buffer.paste_clipboard_data(
+ event.app.clipboard.get_data(),
+ count=event.arg,
+ paste_mode=PasteMode.VI_BEFORE,
+ )
+
+ @handle('"', Keys.Any, "p", filter=vi_navigation_mode)
+ def _paste_register(event: E) -> None:
+ """
+ Paste from named register.
+ """
+ c = event.key_sequence[1].data
+ if c in vi_register_names:
+ data = event.app.vi_state.named_registers.get(c)
+ if data:
+ event.current_buffer.paste_clipboard_data(
+ data, count=event.arg, paste_mode=PasteMode.VI_AFTER
+ )
+
+ @handle('"', Keys.Any, "P", filter=vi_navigation_mode)
+ def _paste_register_before(event: E) -> None:
+ """
+ Paste (before) from named register.
+ """
+ c = event.key_sequence[1].data
+ if c in vi_register_names:
+ data = event.app.vi_state.named_registers.get(c)
+ if data:
+ event.current_buffer.paste_clipboard_data(
+ data, count=event.arg, paste_mode=PasteMode.VI_BEFORE
+ )
+
+ @handle("r", filter=vi_navigation_mode)
+ def _replace(event: E) -> None:
+ """
+ Go to 'replace-single'-mode.
+ """
+ event.app.vi_state.input_mode = InputMode.REPLACE_SINGLE
+
+ @handle("R", filter=vi_navigation_mode)
+ def _replace_mode(event: E) -> None:
+ """
+ Go to 'replace'-mode.
+ """
+ event.app.vi_state.input_mode = InputMode.REPLACE
+
+ @handle("s", filter=vi_navigation_mode & ~is_read_only)
+ def _substitute(event: E) -> None:
+ """
+ Substitute with new text
+ (Delete character(s) and go to insert mode.)
+ """
+ text = event.current_buffer.delete(count=event.arg)
+ event.app.clipboard.set_text(text)
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("u", filter=vi_navigation_mode, save_before=(lambda e: False))
+ def _undo(event: E) -> None:
+ for i in range(event.arg):
+ event.current_buffer.undo()
+
+ @handle("V", filter=vi_navigation_mode)
+ def _visual_line(event: E) -> None:
+ """
+ Start lines selection.
+ """
+ event.current_buffer.start_selection(selection_type=SelectionType.LINES)
+
+ @handle("c-v", filter=vi_navigation_mode)
+ def _visual_block(event: E) -> None:
+ """
+ Enter block selection mode.
+ """
+ event.current_buffer.start_selection(selection_type=SelectionType.BLOCK)
+
+ @handle("V", filter=vi_selection_mode)
+ def _visual_line2(event: E) -> None:
+ """
+ Exit line selection mode, or go from non line selection mode to line
+ selection mode.
+ """
+ selection_state = event.current_buffer.selection_state
+
+ if selection_state is not None:
+ if selection_state.type != SelectionType.LINES:
+ selection_state.type = SelectionType.LINES
+ else:
+ event.current_buffer.exit_selection()
+
+ @handle("v", filter=vi_navigation_mode)
+ def _visual(event: E) -> None:
+ """
+ Enter character selection mode.
+ """
+ event.current_buffer.start_selection(selection_type=SelectionType.CHARACTERS)
+
+ @handle("v", filter=vi_selection_mode)
+ def _visual2(event: E) -> None:
+ """
+ Exit character selection mode, or go from non-character-selection mode
+ to character selection mode.
+ """
+ selection_state = event.current_buffer.selection_state
+
+ if selection_state is not None:
+ if selection_state.type != SelectionType.CHARACTERS:
+ selection_state.type = SelectionType.CHARACTERS
+ else:
+ event.current_buffer.exit_selection()
+
+ @handle("c-v", filter=vi_selection_mode)
+ def _visual_block2(event: E) -> None:
+ """
+ Exit block selection mode, or go from non block selection mode to block
+ selection mode.
+ """
+ selection_state = event.current_buffer.selection_state
+
+ if selection_state is not None:
+ if selection_state.type != SelectionType.BLOCK:
+ selection_state.type = SelectionType.BLOCK
+ else:
+ event.current_buffer.exit_selection()
+
+ @handle("a", "w", filter=vi_selection_mode)
+ @handle("a", "W", filter=vi_selection_mode)
+ def _visual_auto_word(event: E) -> None:
+ """
+ Switch from visual linewise mode to visual characterwise mode.
+ """
+ buffer = event.current_buffer
+
+ if (
+ buffer.selection_state
+ and buffer.selection_state.type == SelectionType.LINES
+ ):
+ buffer.selection_state.type = SelectionType.CHARACTERS
+
+ @handle("x", filter=vi_navigation_mode)
+ def _delete(event: E) -> None:
+ """
+ Delete character.
+ """
+ buff = event.current_buffer
+ count = min(event.arg, len(buff.document.current_line_after_cursor))
+ if count:
+ text = event.current_buffer.delete(count=count)
+ event.app.clipboard.set_text(text)
+
+ @handle("X", filter=vi_navigation_mode)
+ def _delete_before_cursor(event: E) -> None:
+ buff = event.current_buffer
+ count = min(event.arg, len(buff.document.current_line_before_cursor))
+ if count:
+ text = event.current_buffer.delete_before_cursor(count=count)
+ event.app.clipboard.set_text(text)
+
+ @handle("y", "y", filter=vi_navigation_mode)
+ @handle("Y", filter=vi_navigation_mode)
+ def _yank_line(event: E) -> None:
+ """
+ Yank the whole line.
+ """
+ text = "\n".join(event.current_buffer.document.lines_from_current[: event.arg])
+ event.app.clipboard.set_data(ClipboardData(text, SelectionType.LINES))
+
+ @handle("+", filter=vi_navigation_mode)
+ def _next_line(event: E) -> None:
+ """
+ Move to first non whitespace of next line
+ """
+ buffer = event.current_buffer
+ buffer.cursor_position += buffer.document.get_cursor_down_position(
+ count=event.arg
+ )
+ buffer.cursor_position += buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+ @handle("-", filter=vi_navigation_mode)
+ def _prev_line(event: E) -> None:
+ """
+ Move to first non whitespace of previous line
+ """
+ buffer = event.current_buffer
+ buffer.cursor_position += buffer.document.get_cursor_up_position(
+ count=event.arg
+ )
+ buffer.cursor_position += buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+
+ @handle(">", ">", filter=vi_navigation_mode)
+ def _indent(event: E) -> None:
+ """
+ Indent lines.
+ """
+ buffer = event.current_buffer
+ current_row = buffer.document.cursor_position_row
+ indent(buffer, current_row, current_row + event.arg)
+
+ @handle("<", "<", filter=vi_navigation_mode)
+ def _unindent(event: E) -> None:
+ """
+ Unindent lines.
+ """
+ current_row = event.current_buffer.document.cursor_position_row
+ unindent(event.current_buffer, current_row, current_row + event.arg)
+
+ @handle("O", filter=vi_navigation_mode & ~is_read_only)
+ def _open_above(event: E) -> None:
+ """
+ Open line above and enter insertion mode
+ """
+ event.current_buffer.insert_line_above(copy_margin=not in_paste_mode())
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("o", filter=vi_navigation_mode & ~is_read_only)
+ def _open_below(event: E) -> None:
+ """
+ Open line below and enter insertion mode
+ """
+ event.current_buffer.insert_line_below(copy_margin=not in_paste_mode())
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ @handle("~", filter=vi_navigation_mode)
+ def _reverse_case(event: E) -> None:
+ """
+ Reverse case of current character and move cursor forward.
+ """
+ buffer = event.current_buffer
+ c = buffer.document.current_char
+
+ if c is not None and c != "\n":
+ buffer.insert_text(c.swapcase(), overwrite=True)
+
+ @handle("g", "u", "u", filter=vi_navigation_mode & ~is_read_only)
+ def _lowercase_line(event: E) -> None:
+ """
+ Lowercase current line.
+ """
+ buff = event.current_buffer
+ buff.transform_current_line(lambda s: s.lower())
+
+ @handle("g", "U", "U", filter=vi_navigation_mode & ~is_read_only)
+ def _uppercase_line(event: E) -> None:
+ """
+ Uppercase current line.
+ """
+ buff = event.current_buffer
+ buff.transform_current_line(lambda s: s.upper())
+
+ @handle("g", "~", "~", filter=vi_navigation_mode & ~is_read_only)
+ def _swapcase_line(event: E) -> None:
+ """
+ Swap case of the current line.
+ """
+ buff = event.current_buffer
+ buff.transform_current_line(lambda s: s.swapcase())
+
+ @handle("#", filter=vi_navigation_mode)
+ def _prev_occurence(event: E) -> None:
+ """
+ Go to previous occurrence of this word.
+ """
+ b = event.current_buffer
+ search_state = event.app.current_search_state
+
+ search_state.text = b.document.get_word_under_cursor()
+ search_state.direction = SearchDirection.BACKWARD
+
+ b.apply_search(search_state, count=event.arg, include_current_position=False)
+
+ @handle("*", filter=vi_navigation_mode)
+ def _next_occurance(event: E) -> None:
+ """
+ Go to next occurrence of this word.
+ """
+ b = event.current_buffer
+ search_state = event.app.current_search_state
+
+ search_state.text = b.document.get_word_under_cursor()
+ search_state.direction = SearchDirection.FORWARD
+
+ b.apply_search(search_state, count=event.arg, include_current_position=False)
+
+ @handle("(", filter=vi_navigation_mode)
+ def _begin_of_sentence(event: E) -> None:
+ # TODO: go to begin of sentence.
+ # XXX: should become text_object.
+ pass
+
+ @handle(")", filter=vi_navigation_mode)
+ def _end_of_sentence(event: E) -> None:
+ # TODO: go to end of sentence.
+ # XXX: should become text_object.
+ pass
+
+ operator = create_operator_decorator(key_bindings)
+ text_object = create_text_object_decorator(key_bindings)
+
+ @handle(Keys.Any, filter=vi_waiting_for_text_object_mode)
+ def _unknown_text_object(event: E) -> None:
+ """
+ Unknown key binding while waiting for a text object.
+ """
+ event.app.output.bell()
+
+ #
+ # *** Operators ***
+ #
+
+ def create_delete_and_change_operators(
+ delete_only: bool, with_register: bool = False
+ ) -> None:
+ """
+ Delete and change operators.
+
+ :param delete_only: Create an operator that deletes, but doesn't go to insert mode.
+ :param with_register: Copy the deleted text to this named register instead of the clipboard.
+ """
+ handler_keys: Iterable[str]
+ if with_register:
+ handler_keys = ('"', Keys.Any, "cd"[delete_only])
+ else:
+ handler_keys = "cd"[delete_only]
+
+ @operator(*handler_keys, filter=~is_read_only)
+ def delete_or_change_operator(event: E, text_object: TextObject) -> None:
+ clipboard_data = None
+ buff = event.current_buffer
+
+ if text_object:
+ new_document, clipboard_data = text_object.cut(buff)
+ buff.document = new_document
+
+ # Set deleted/changed text to clipboard or named register.
+ if clipboard_data and clipboard_data.text:
+ if with_register:
+ reg_name = event.key_sequence[1].data
+ if reg_name in vi_register_names:
+ event.app.vi_state.named_registers[reg_name] = clipboard_data
+ else:
+ event.app.clipboard.set_data(clipboard_data)
+
+ # Only go back to insert mode in case of 'change'.
+ if not delete_only:
+ event.app.vi_state.input_mode = InputMode.INSERT
+
+ create_delete_and_change_operators(False, False)
+ create_delete_and_change_operators(False, True)
+ create_delete_and_change_operators(True, False)
+ create_delete_and_change_operators(True, True)
+
+ def create_transform_handler(
+ filter: Filter, transform_func: Callable[[str], str], *a: str
+ ) -> None:
+ @operator(*a, filter=filter & ~is_read_only)
+ def _(event: E, text_object: TextObject) -> None:
+ """
+ Apply transformation (uppercase, lowercase, rot13, swap case).
+ """
+ buff = event.current_buffer
+ start, end = text_object.operator_range(buff.document)
+
+ if start < end:
+ # Transform.
+ buff.transform_region(
+ buff.cursor_position + start,
+ buff.cursor_position + end,
+ transform_func,
+ )
+
+ # Move cursor
+ buff.cursor_position += text_object.end or text_object.start
+
+ for k, f, func in vi_transform_functions:
+ create_transform_handler(f, func, *k)
+
+ @operator("y")
+ def _yank(event: E, text_object: TextObject) -> None:
+ """
+ Yank operator. (Copy text.)
+ """
+ _, clipboard_data = text_object.cut(event.current_buffer)
+ if clipboard_data.text:
+ event.app.clipboard.set_data(clipboard_data)
+
+ @operator('"', Keys.Any, "y")
+ def _yank_to_register(event: E, text_object: TextObject) -> None:
+ """
+ Yank selection to named register.
+ """
+ c = event.key_sequence[1].data
+ if c in vi_register_names:
+ _, clipboard_data = text_object.cut(event.current_buffer)
+ event.app.vi_state.named_registers[c] = clipboard_data
+
+ @operator(">")
+ def _indent_text_object(event: E, text_object: TextObject) -> None:
+ """
+ Indent.
+ """
+ buff = event.current_buffer
+ from_, to = text_object.get_line_numbers(buff)
+ indent(buff, from_, to + 1, count=event.arg)
+
+ @operator("<")
+ def _unindent_text_object(event: E, text_object: TextObject) -> None:
+ """
+ Unindent.
+ """
+ buff = event.current_buffer
+ from_, to = text_object.get_line_numbers(buff)
+ unindent(buff, from_, to + 1, count=event.arg)
+
+ @operator("g", "q")
+ def _reshape(event: E, text_object: TextObject) -> None:
+ """
+ Reshape text.
+ """
+ buff = event.current_buffer
+ from_, to = text_object.get_line_numbers(buff)
+ reshape_text(buff, from_, to)
+
+ #
+ # *** Text objects ***
+ #
+
+ @text_object("b")
+ def _b(event: E) -> TextObject:
+ """
+ Move one word or token left.
+ """
+ return TextObject(
+ event.current_buffer.document.find_start_of_previous_word(count=event.arg)
+ or 0
+ )
+
+ @text_object("B")
+ def _B(event: E) -> TextObject:
+ """
+ Move one non-blank word left
+ """
+ return TextObject(
+ event.current_buffer.document.find_start_of_previous_word(
+ count=event.arg, WORD=True
+ )
+ or 0
+ )
+
+ @text_object("$")
+ def _dollar(event: E) -> TextObject:
+ """
+ 'c$', 'd$' and '$': Delete/change/move until end of line.
+ """
+ return TextObject(event.current_buffer.document.get_end_of_line_position())
+
+ @text_object("w")
+ def _word_forward(event: E) -> TextObject:
+ """
+ 'word' forward. 'cw', 'dw', 'w': Delete/change/move one word.
+ """
+ return TextObject(
+ event.current_buffer.document.find_next_word_beginning(count=event.arg)
+ or event.current_buffer.document.get_end_of_document_position()
+ )
+
+ @text_object("W")
+ def _WORD_forward(event: E) -> TextObject:
+ """
+ 'WORD' forward. 'cW', 'dW', 'W': Delete/change/move one WORD.
+ """
+ return TextObject(
+ event.current_buffer.document.find_next_word_beginning(
+ count=event.arg, WORD=True
+ )
+ or event.current_buffer.document.get_end_of_document_position()
+ )
+
+ @text_object("e")
+ def _end_of_word(event: E) -> TextObject:
+ """
+ End of 'word': 'ce', 'de', 'e'
+ """
+ end = event.current_buffer.document.find_next_word_ending(count=event.arg)
+ return TextObject(end - 1 if end else 0, type=TextObjectType.INCLUSIVE)
+
+ @text_object("E")
+ def _end_of_WORD(event: E) -> TextObject:
+ """
+ End of 'WORD': 'cE', 'dE', 'E'
+ """
+ end = event.current_buffer.document.find_next_word_ending(
+ count=event.arg, WORD=True
+ )
+ return TextObject(end - 1 if end else 0, type=TextObjectType.INCLUSIVE)
+
+ @text_object("i", "w", no_move_handler=True)
+ def _inner_word(event: E) -> TextObject:
+ """
+ Inner 'word': ciw and diw
+ """
+ start, end = event.current_buffer.document.find_boundaries_of_current_word()
+ return TextObject(start, end)
+
+ @text_object("a", "w", no_move_handler=True)
+ def _a_word(event: E) -> TextObject:
+ """
+ A 'word': caw and daw
+ """
+ start, end = event.current_buffer.document.find_boundaries_of_current_word(
+ include_trailing_whitespace=True
+ )
+ return TextObject(start, end)
+
+ @text_object("i", "W", no_move_handler=True)
+ def _inner_WORD(event: E) -> TextObject:
+ """
+ Inner 'WORD': ciW and diW
+ """
+ start, end = event.current_buffer.document.find_boundaries_of_current_word(
+ WORD=True
+ )
+ return TextObject(start, end)
+
+ @text_object("a", "W", no_move_handler=True)
+ def _a_WORD(event: E) -> TextObject:
+ """
+ A 'WORD': caw and daw
+ """
+ start, end = event.current_buffer.document.find_boundaries_of_current_word(
+ WORD=True, include_trailing_whitespace=True
+ )
+ return TextObject(start, end)
+
+ @text_object("a", "p", no_move_handler=True)
+ def _paragraph(event: E) -> TextObject:
+ """
+ Auto paragraph.
+ """
+ start = event.current_buffer.document.start_of_paragraph()
+ end = event.current_buffer.document.end_of_paragraph(count=event.arg)
+ return TextObject(start, end)
+
+ @text_object("^")
+ def _start_of_line(event: E) -> TextObject:
+ """'c^', 'd^' and '^': Soft start of line, after whitespace."""
+ return TextObject(
+ event.current_buffer.document.get_start_of_line_position(
+ after_whitespace=True
+ )
+ )
+
+ @text_object("0")
+ def _hard_start_of_line(event: E) -> TextObject:
+ """
+ 'c0', 'd0': Hard start of line, before whitespace.
+ (The move '0' key is implemented elsewhere, because a '0' could also change the `arg`.)
+ """
+ return TextObject(
+ event.current_buffer.document.get_start_of_line_position(
+ after_whitespace=False
+ )
+ )
+
+ def create_ci_ca_handles(
+ ci_start: str, ci_end: str, inner: bool, key: Optional[str] = None
+ ) -> None:
+ # TODO: 'dat', 'dit', (tags (like xml)
+ """
+ Delete/Change string between this start and stop character. But keep these characters.
+ This implements all the ci", ci<, ci{, ci(, di", di<, ca", ca<, ... combinations.
+ """
+
+ def handler(event: E) -> TextObject:
+ if ci_start == ci_end:
+ # Quotes
+ start = event.current_buffer.document.find_backwards(
+ ci_start, in_current_line=False
+ )
+ end = event.current_buffer.document.find(ci_end, in_current_line=False)
+ else:
+ # Brackets
+ start = event.current_buffer.document.find_enclosing_bracket_left(
+ ci_start, ci_end
+ )
+ end = event.current_buffer.document.find_enclosing_bracket_right(
+ ci_start, ci_end
+ )
+
+ if start is not None and end is not None:
+ offset = 0 if inner else 1
+ return TextObject(start + 1 - offset, end + offset)
+ else:
+ # Nothing found.
+ return TextObject(0)
+
+ if key is None:
+ text_object("ai"[inner], ci_start, no_move_handler=True)(handler)
+ text_object("ai"[inner], ci_end, no_move_handler=True)(handler)
+ else:
+ text_object("ai"[inner], key, no_move_handler=True)(handler)
+
+ for inner in (False, True):
+ for ci_start, ci_end in [
+ ('"', '"'),
+ ("'", "'"),
+ ("`", "`"),
+ ("[", "]"),
+ ("<", ">"),
+ ("{", "}"),
+ ("(", ")"),
+ ]:
+ create_ci_ca_handles(ci_start, ci_end, inner)
+
+ create_ci_ca_handles("(", ")", inner, "b") # 'dab', 'dib'
+ create_ci_ca_handles("{", "}", inner, "B") # 'daB', 'diB'
+
+ @text_object("{")
+ def _previous_section(event: E) -> TextObject:
+ """
+ Move to previous blank-line separated section.
+ Implements '{', 'c{', 'd{', 'y{'
+ """
+ index = event.current_buffer.document.start_of_paragraph(
+ count=event.arg, before=True
+ )
+ return TextObject(index)
+
+ @text_object("}")
+ def _next_section(event: E) -> TextObject:
+ """
+ Move to next blank-line separated section.
+ Implements '}', 'c}', 'd}', 'y}'
+ """
+ index = event.current_buffer.document.end_of_paragraph(
+ count=event.arg, after=True
+ )
+ return TextObject(index)
+
+ @text_object("f", Keys.Any)
+ def _next_occurence(event: E) -> TextObject:
+ """
+ Go to next occurrence of character. Typing 'fx' will move the
+ cursor to the next occurrence of character. 'x'.
+ """
+ event.app.vi_state.last_character_find = CharacterFind(event.data, False)
+ match = event.current_buffer.document.find(
+ event.data, in_current_line=True, count=event.arg
+ )
+ if match:
+ return TextObject(match, type=TextObjectType.INCLUSIVE)
+ else:
+ return TextObject(0)
+
+ @text_object("F", Keys.Any)
+ def _previous_occurance(event: E) -> TextObject:
+ """
+ Go to previous occurrence of character. Typing 'Fx' will move the
+ cursor to the previous occurrence of character. 'x'.
+ """
+ event.app.vi_state.last_character_find = CharacterFind(event.data, True)
+ return TextObject(
+ event.current_buffer.document.find_backwards(
+ event.data, in_current_line=True, count=event.arg
+ )
+ or 0
+ )
+
+ @text_object("t", Keys.Any)
+ def _t(event: E) -> TextObject:
+ """
+ Move right to the next occurrence of c, then one char backward.
+ """
+ event.app.vi_state.last_character_find = CharacterFind(event.data, False)
+ match = event.current_buffer.document.find(
+ event.data, in_current_line=True, count=event.arg
+ )
+ if match:
+ return TextObject(match - 1, type=TextObjectType.INCLUSIVE)
+ else:
+ return TextObject(0)
+
+ @text_object("T", Keys.Any)
+ def _T(event: E) -> TextObject:
+ """
+ Move left to the previous occurrence of c, then one char forward.
+ """
+ event.app.vi_state.last_character_find = CharacterFind(event.data, True)
+ match = event.current_buffer.document.find_backwards(
+ event.data, in_current_line=True, count=event.arg
+ )
+ return TextObject(match + 1 if match else 0)
+
+ def repeat(reverse: bool) -> None:
+ """
+ Create ',' and ';' commands.
+ """
+
+ @text_object("," if reverse else ";")
+ def _(event: E) -> TextObject:
+ """
+ Repeat the last 'f'/'F'/'t'/'T' command.
+ """
+ pos: Optional[int] = 0
+ vi_state = event.app.vi_state
+
+ type = TextObjectType.EXCLUSIVE
+
+ if vi_state.last_character_find:
+ char = vi_state.last_character_find.character
+ backwards = vi_state.last_character_find.backwards
+
+ if reverse:
+ backwards = not backwards
+
+ if backwards:
+ pos = event.current_buffer.document.find_backwards(
+ char, in_current_line=True, count=event.arg
+ )
+ else:
+ pos = event.current_buffer.document.find(
+ char, in_current_line=True, count=event.arg
+ )
+ type = TextObjectType.INCLUSIVE
+ if pos:
+ return TextObject(pos, type=type)
+ else:
+ return TextObject(0)
+
+ repeat(True)
+ repeat(False)
+
+ @text_object("h")
+ @text_object("left")
+ def _left(event: E) -> TextObject:
+ """
+ Implements 'ch', 'dh', 'h': Cursor left.
+ """
+ return TextObject(
+ event.current_buffer.document.get_cursor_left_position(count=event.arg)
+ )
+
+ @text_object("j", no_move_handler=True, no_selection_handler=True)
+ # Note: We also need `no_selection_handler`, because we in
+ # selection mode, we prefer the other 'j' binding that keeps
+ # `buffer.preferred_column`.
+ def _down(event: E) -> TextObject:
+ """
+ Implements 'cj', 'dj', 'j', ... Cursor up.
+ """
+ return TextObject(
+ event.current_buffer.document.get_cursor_down_position(count=event.arg),
+ type=TextObjectType.LINEWISE,
+ )
+
+ @text_object("k", no_move_handler=True, no_selection_handler=True)
+ def _up(event: E) -> TextObject:
+ """
+ Implements 'ck', 'dk', 'k', ... Cursor up.
+ """
+ return TextObject(
+ event.current_buffer.document.get_cursor_up_position(count=event.arg),
+ type=TextObjectType.LINEWISE,
+ )
+
+ @text_object("l")
+ @text_object(" ")
+ @text_object("right")
+ def _right(event: E) -> TextObject:
+ """
+ Implements 'cl', 'dl', 'l', 'c ', 'd ', ' '. Cursor right.
+ """
+ return TextObject(
+ event.current_buffer.document.get_cursor_right_position(count=event.arg)
+ )
+
+ @text_object("H")
+ def _top_of_screen(event: E) -> TextObject:
+ """
+ Moves to the start of the visible region. (Below the scroll offset.)
+ Implements 'cH', 'dH', 'H'.
+ """
+ w = event.app.layout.current_window
+ b = event.current_buffer
+
+ if w and w.render_info:
+ # When we find a Window that has BufferControl showing this window,
+ # move to the start of the visible area.
+ pos = (
+ b.document.translate_row_col_to_index(
+ w.render_info.first_visible_line(after_scroll_offset=True), 0
+ )
+ - b.cursor_position
+ )
+
+ else:
+ # Otherwise, move to the start of the input.
+ pos = -len(b.document.text_before_cursor)
+ return TextObject(pos, type=TextObjectType.LINEWISE)
+
+ @text_object("M")
+ def _middle_of_screen(event: E) -> TextObject:
+ """
+ Moves cursor to the vertical center of the visible region.
+ Implements 'cM', 'dM', 'M'.
+ """
+ w = event.app.layout.current_window
+ b = event.current_buffer
+
+ if w and w.render_info:
+ # When we find a Window that has BufferControl showing this window,
+ # move to the center of the visible area.
+ pos = (
+ b.document.translate_row_col_to_index(
+ w.render_info.center_visible_line(), 0
+ )
+ - b.cursor_position
+ )
+
+ else:
+ # Otherwise, move to the start of the input.
+ pos = -len(b.document.text_before_cursor)
+ return TextObject(pos, type=TextObjectType.LINEWISE)
+
+ @text_object("L")
+ def _end_of_screen(event: E) -> TextObject:
+ """
+ Moves to the end of the visible region. (Above the scroll offset.)
+ """
+ w = event.app.layout.current_window
+ b = event.current_buffer
+
+ if w and w.render_info:
+ # When we find a Window that has BufferControl showing this window,
+ # move to the end of the visible area.
+ pos = (
+ b.document.translate_row_col_to_index(
+ w.render_info.last_visible_line(before_scroll_offset=True), 0
+ )
+ - b.cursor_position
+ )
+
+ else:
+ # Otherwise, move to the end of the input.
+ pos = len(b.document.text_after_cursor)
+ return TextObject(pos, type=TextObjectType.LINEWISE)
+
+ @text_object("n", no_move_handler=True)
+ def _search_next(event: E) -> TextObject:
+ """
+ Search next.
+ """
+ buff = event.current_buffer
+ search_state = event.app.current_search_state
+
+ cursor_position = buff.get_search_position(
+ search_state, include_current_position=False, count=event.arg
+ )
+ return TextObject(cursor_position - buff.cursor_position)
+
+ @handle("n", filter=vi_navigation_mode)
+ def _search_next2(event: E) -> None:
+ """
+ Search next in navigation mode. (This goes through the history.)
+ """
+ search_state = event.app.current_search_state
+
+ event.current_buffer.apply_search(
+ search_state, include_current_position=False, count=event.arg
+ )
+
+ @text_object("N", no_move_handler=True)
+ def _search_previous(event: E) -> TextObject:
+ """
+ Search previous.
+ """
+ buff = event.current_buffer
+ search_state = event.app.current_search_state
+
+ cursor_position = buff.get_search_position(
+ ~search_state, include_current_position=False, count=event.arg
+ )
+ return TextObject(cursor_position - buff.cursor_position)
+
+ @handle("N", filter=vi_navigation_mode)
+ def _search_previous2(event: E) -> None:
+ """
+ Search previous in navigation mode. (This goes through the history.)
+ """
+ search_state = event.app.current_search_state
+
+ event.current_buffer.apply_search(
+ ~search_state, include_current_position=False, count=event.arg
+ )
+
+ @handle("z", "+", filter=vi_navigation_mode | vi_selection_mode)
+ @handle("z", "t", filter=vi_navigation_mode | vi_selection_mode)
+ @handle("z", "enter", filter=vi_navigation_mode | vi_selection_mode)
+ def _scroll_top(event: E) -> None:
+ """
+ Scrolls the window to makes the current line the first line in the visible region.
+ """
+ b = event.current_buffer
+ event.app.layout.current_window.vertical_scroll = b.document.cursor_position_row
+
+ @handle("z", "-", filter=vi_navigation_mode | vi_selection_mode)
+ @handle("z", "b", filter=vi_navigation_mode | vi_selection_mode)
+ def _scroll_bottom(event: E) -> None:
+ """
+ Scrolls the window to makes the current line the last line in the visible region.
+ """
+ # We can safely set the scroll offset to zero; the Window will make
+ # sure that it scrolls at least enough to make the cursor visible
+ # again.
+ event.app.layout.current_window.vertical_scroll = 0
+
+ @handle("z", "z", filter=vi_navigation_mode | vi_selection_mode)
+ def _scroll_center(event: E) -> None:
+ """
+ Center Window vertically around cursor.
+ """
+ w = event.app.layout.current_window
+ b = event.current_buffer
+
+ if w and w.render_info:
+ info = w.render_info
+
+ # Calculate the offset that we need in order to position the row
+ # containing the cursor in the center.
+ scroll_height = info.window_height // 2
+
+ y = max(0, b.document.cursor_position_row - 1)
+ height = 0
+ while y > 0:
+ line_height = info.get_height_for_line(y)
+
+ if height + line_height < scroll_height:
+ height += line_height
+ y -= 1
+ else:
+ break
+
+ w.vertical_scroll = y
+
+ @text_object("%")
+ def _goto_corresponding_bracket(event: E) -> TextObject:
+ """
+ Implements 'c%', 'd%', '%, 'y%' (Move to corresponding bracket.)
+ If an 'arg' has been given, go this this % position in the file.
+ """
+ buffer = event.current_buffer
+
+ if event._arg:
+ # If 'arg' has been given, the meaning of % is to go to the 'x%'
+ # row in the file.
+ if 0 < event.arg <= 100:
+ absolute_index = buffer.document.translate_row_col_to_index(
+ int((event.arg * buffer.document.line_count - 1) / 100), 0
+ )
+ return TextObject(
+ absolute_index - buffer.document.cursor_position,
+ type=TextObjectType.LINEWISE,
+ )
+ else:
+ return TextObject(0) # Do nothing.
+
+ else:
+ # Move to the corresponding opening/closing bracket (()'s, []'s and {}'s).
+ match = buffer.document.find_matching_bracket_position()
+ if match:
+ return TextObject(match, type=TextObjectType.INCLUSIVE)
+ else:
+ return TextObject(0)
+
+ @text_object("|")
+ def _to_column(event: E) -> TextObject:
+ """
+ Move to the n-th column (you may specify the argument n by typing it on
+ number keys, for example, 20|).
+ """
+ return TextObject(
+ event.current_buffer.document.get_column_cursor_position(event.arg - 1)
+ )
+
+ @text_object("g", "g")
+ def _goto_first_line(event: E) -> TextObject:
+ """
+ Go to the start of the very first line.
+ Implements 'gg', 'cgg', 'ygg'
+ """
+ d = event.current_buffer.document
+
+ if event._arg:
+ # Move to the given line.
+ return TextObject(
+ d.translate_row_col_to_index(event.arg - 1, 0) - d.cursor_position,
+ type=TextObjectType.LINEWISE,
+ )
+ else:
+ # Move to the top of the input.
+ return TextObject(
+ d.get_start_of_document_position(), type=TextObjectType.LINEWISE
+ )
+
+ @text_object("g", "_")
+ def _goto_last_line(event: E) -> TextObject:
+ """
+ Go to last non-blank of line.
+ 'g_', 'cg_', 'yg_', etc..
+ """
+ return TextObject(
+ event.current_buffer.document.last_non_blank_of_current_line_position(),
+ type=TextObjectType.INCLUSIVE,
+ )
+
+ @text_object("g", "e")
+ def _ge(event: E) -> TextObject:
+ """
+ Go to last character of previous word.
+ 'ge', 'cge', 'yge', etc..
+ """
+ prev_end = event.current_buffer.document.find_previous_word_ending(
+ count=event.arg
+ )
+ return TextObject(
+ prev_end - 1 if prev_end is not None else 0, type=TextObjectType.INCLUSIVE
+ )
+
+ @text_object("g", "E")
+ def _gE(event: E) -> TextObject:
+ """
+ Go to last character of previous WORD.
+ 'gE', 'cgE', 'ygE', etc..
+ """
+ prev_end = event.current_buffer.document.find_previous_word_ending(
+ count=event.arg, WORD=True
+ )
+ return TextObject(
+ prev_end - 1 if prev_end is not None else 0, type=TextObjectType.INCLUSIVE
+ )
+
+ @text_object("g", "m")
+ def _gm(event: E) -> TextObject:
+ """
+ Like g0, but half a screenwidth to the right. (Or as much as possible.)
+ """
+ w = event.app.layout.current_window
+ buff = event.current_buffer
+
+ if w and w.render_info:
+ width = w.render_info.window_width
+ start = buff.document.get_start_of_line_position(after_whitespace=False)
+ start += int(min(width / 2, len(buff.document.current_line)))
+
+ return TextObject(start, type=TextObjectType.INCLUSIVE)
+ return TextObject(0)
+
+ @text_object("G")
+ def _last_line(event: E) -> TextObject:
+ """
+ Go to the end of the document. (If no arg has been given.)
+ """
+ buf = event.current_buffer
+ return TextObject(
+ buf.document.translate_row_col_to_index(buf.document.line_count - 1, 0)
+ - buf.cursor_position,
+ type=TextObjectType.LINEWISE,
+ )
+
+ #
+ # *** Other ***
+ #
+
+ @handle("G", filter=has_arg)
+ def _to_nth_history_line(event: E) -> None:
+ """
+ If an argument is given, move to this line in the history. (for
+ example, 15G)
+ """
+ event.current_buffer.go_to_history(event.arg - 1)
+
+ for n in "123456789":
+
+ @handle(
+ n,
+ filter=vi_navigation_mode
+ | vi_selection_mode
+ | vi_waiting_for_text_object_mode,
+ )
+ def _arg(event: E) -> None:
+ """
+ Always handle numerics in navigation mode as arg.
+ """
+ event.append_to_arg_count(event.data)
+
+ @handle(
+ "0",
+ filter=(
+ vi_navigation_mode | vi_selection_mode | vi_waiting_for_text_object_mode
+ )
+ & has_arg,
+ )
+ def _0_arg(event: E) -> None:
+ """
+ Zero when an argument was already give.
+ """
+ event.append_to_arg_count(event.data)
+
+ @handle(Keys.Any, filter=vi_replace_mode)
+ def _insert_text(event: E) -> None:
+ """
+ Insert data at cursor position.
+ """
+ event.current_buffer.insert_text(event.data, overwrite=True)
+
+ @handle(Keys.Any, filter=vi_replace_single_mode)
+ def _replace_single(event: E) -> None:
+ """
+ Replace single character at cursor position.
+ """
+ event.current_buffer.insert_text(event.data, overwrite=True)
+ event.current_buffer.cursor_position -= 1
+ event.app.vi_state.input_mode = InputMode.NAVIGATION
+
+ @handle(
+ Keys.Any,
+ filter=vi_insert_multiple_mode,
+ save_before=(lambda e: not e.is_repeat),
+ )
+ def _insert_text_multiple_cursors(event: E) -> None:
+ """
+ Insert data at multiple cursor positions at once.
+ (Usually a result of pressing 'I' or 'A' in block-selection mode.)
+ """
+ buff = event.current_buffer
+ original_text = buff.text
+
+ # Construct new text.
+ text = []
+ p = 0
+
+ for p2 in buff.multiple_cursor_positions:
+ text.append(original_text[p:p2])
+ text.append(event.data)
+ p = p2
+
+ text.append(original_text[p:])
+
+ # Shift all cursor positions.
+ new_cursor_positions = [
+ pos + i + 1 for i, pos in enumerate(buff.multiple_cursor_positions)
+ ]
+
+ # Set result.
+ buff.text = "".join(text)
+ buff.multiple_cursor_positions = new_cursor_positions
+ buff.cursor_position += 1
+
+ @handle("backspace", filter=vi_insert_multiple_mode)
+ def _delete_before_multiple_cursors(event: E) -> None:
+ """
+ Backspace, using multiple cursors.
+ """
+ buff = event.current_buffer
+ original_text = buff.text
+
+ # Construct new text.
+ deleted_something = False
+ text = []
+ p = 0
+
+ for p2 in buff.multiple_cursor_positions:
+ if p2 > 0 and original_text[p2 - 1] != "\n": # Don't delete across lines.
+ text.append(original_text[p : p2 - 1])
+ deleted_something = True
+ else:
+ text.append(original_text[p:p2])
+ p = p2
+
+ text.append(original_text[p:])
+
+ if deleted_something:
+ # Shift all cursor positions.
+ lengths = [len(part) for part in text[:-1]]
+ new_cursor_positions = list(accumulate(lengths))
+
+ # Set result.
+ buff.text = "".join(text)
+ buff.multiple_cursor_positions = new_cursor_positions
+ buff.cursor_position -= 1
+ else:
+ event.app.output.bell()
+
+ @handle("delete", filter=vi_insert_multiple_mode)
+ def _delete_after_multiple_cursors(event: E) -> None:
+ """
+ Delete, using multiple cursors.
+ """
+ buff = event.current_buffer
+ original_text = buff.text
+
+ # Construct new text.
+ deleted_something = False
+ text = []
+ new_cursor_positions = []
+ p = 0
+
+ for p2 in buff.multiple_cursor_positions:
+ text.append(original_text[p:p2])
+ if p2 >= len(original_text) or original_text[p2] == "\n":
+ # Don't delete across lines.
+ p = p2
+ else:
+ p = p2 + 1
+ deleted_something = True
+
+ text.append(original_text[p:])
+
+ if deleted_something:
+ # Shift all cursor positions.
+ lengths = [len(part) for part in text[:-1]]
+ new_cursor_positions = list(accumulate(lengths))
+
+ # Set result.
+ buff.text = "".join(text)
+ buff.multiple_cursor_positions = new_cursor_positions
+ else:
+ event.app.output.bell()
+
+ @handle("left", filter=vi_insert_multiple_mode)
+ def _left_multiple(event: E) -> None:
+ """
+ Move all cursors to the left.
+ (But keep all cursors on the same line.)
+ """
+ buff = event.current_buffer
+ new_positions = []
+
+ for p in buff.multiple_cursor_positions:
+ if buff.document.translate_index_to_position(p)[1] > 0:
+ p -= 1
+ new_positions.append(p)
+
+ buff.multiple_cursor_positions = new_positions
+
+ if buff.document.cursor_position_col > 0:
+ buff.cursor_position -= 1
+
+ @handle("right", filter=vi_insert_multiple_mode)
+ def _right_multiple(event: E) -> None:
+ """
+ Move all cursors to the right.
+ (But keep all cursors on the same line.)
+ """
+ buff = event.current_buffer
+ new_positions = []
+
+ for p in buff.multiple_cursor_positions:
+ row, column = buff.document.translate_index_to_position(p)
+ if column < len(buff.document.lines[row]):
+ p += 1
+ new_positions.append(p)
+
+ buff.multiple_cursor_positions = new_positions
+
+ if not buff.document.is_cursor_at_the_end_of_line:
+ buff.cursor_position += 1
+
+ @handle("up", filter=vi_insert_multiple_mode)
+ @handle("down", filter=vi_insert_multiple_mode)
+ def _updown_multiple(event: E) -> None:
+ """
+ Ignore all up/down key presses when in multiple cursor mode.
+ """
+
+ @handle("c-x", "c-l", filter=vi_insert_mode)
+ def _complete_line(event: E) -> None:
+ """
+ Pressing the ControlX - ControlL sequence in Vi mode does line
+ completion based on the other lines in the document and the history.
+ """
+ event.current_buffer.start_history_lines_completion()
+
+ @handle("c-x", "c-f", filter=vi_insert_mode)
+ def _complete_filename(event: E) -> None:
+ """
+ Complete file names.
+ """
+ # TODO
+ pass
+
+ @handle("c-k", filter=vi_insert_mode | vi_replace_mode)
+ def _digraph(event: E) -> None:
+ """
+ Go into digraph mode.
+ """
+ event.app.vi_state.waiting_for_digraph = True
+
+ @Condition
+ def digraph_symbol_1_given() -> bool:
+ return get_app().vi_state.digraph_symbol1 is not None
+
+ @handle(Keys.Any, filter=vi_digraph_mode & ~digraph_symbol_1_given)
+ def _digraph1(event: E) -> None:
+ """
+ First digraph symbol.
+ """
+ event.app.vi_state.digraph_symbol1 = event.data
+
+ @handle(Keys.Any, filter=vi_digraph_mode & digraph_symbol_1_given)
+ def _create_digraph(event: E) -> None:
+ """
+ Insert digraph.
+ """
+ try:
+ # Lookup.
+ code: Tuple[str, str] = (
+ event.app.vi_state.digraph_symbol1 or "",
+ event.data,
+ )
+ if code not in DIGRAPHS:
+ code = code[::-1] # Try reversing.
+ symbol = DIGRAPHS[code]
+ except KeyError:
+ # Unknown digraph.
+ event.app.output.bell()
+ else:
+ # Insert digraph.
+ overwrite = event.app.vi_state.input_mode == InputMode.REPLACE
+ event.current_buffer.insert_text(chr(symbol), overwrite=overwrite)
+ event.app.vi_state.waiting_for_digraph = False
+ finally:
+ event.app.vi_state.waiting_for_digraph = False
+ event.app.vi_state.digraph_symbol1 = None
+
+ @handle("c-o", filter=vi_insert_mode | vi_replace_mode)
+ def _quick_normal_mode(event: E) -> None:
+ """
+ Go into normal mode for one single action.
+ """
+ event.app.vi_state.temporary_navigation_mode = True
+
+ @handle("q", Keys.Any, filter=vi_navigation_mode & ~vi_recording_macro)
+ def _start_macro(event: E) -> None:
+ """
+ Start recording macro.
+ """
+ c = event.key_sequence[1].data
+ if c in vi_register_names:
+ vi_state = event.app.vi_state
+
+ vi_state.recording_register = c
+ vi_state.current_recording = ""
+
+ @handle("q", filter=vi_navigation_mode & vi_recording_macro)
+ def _stop_macro(event: E) -> None:
+ """
+ Stop recording macro.
+ """
+ vi_state = event.app.vi_state
+
+ # Store and stop recording.
+ if vi_state.recording_register:
+ vi_state.named_registers[vi_state.recording_register] = ClipboardData(
+ vi_state.current_recording
+ )
+ vi_state.recording_register = None
+ vi_state.current_recording = ""
+
+ @handle("@", Keys.Any, filter=vi_navigation_mode, record_in_macro=False)
+ def _execute_macro(event: E) -> None:
+ """
+ Execute macro.
+
+ Notice that we pass `record_in_macro=False`. This ensures that the `@x`
+ keys don't appear in the recording itself. This function inserts the
+ body of the called macro back into the KeyProcessor, so these keys will
+ be added later on to the macro of their handlers have
+ `record_in_macro=True`.
+ """
+ # Retrieve macro.
+ c = event.key_sequence[1].data
+ try:
+ macro = event.app.vi_state.named_registers[c]
+ except KeyError:
+ return
+
+ # Expand macro (which is a string in the register), in individual keys.
+ # Use vt100 parser for this.
+ keys: List[KeyPress] = []
+
+ parser = Vt100Parser(keys.append)
+ parser.feed(macro.text)
+ parser.flush()
+
+ # Now feed keys back to the input processor.
+ for _ in range(event.arg):
+ event.app.key_processor.feed_multiple(keys, first=True)
+
+ return ConditionalKeyBindings(key_bindings, vi_mode)
+
+
+def load_vi_search_bindings() -> KeyBindingsBase:
+ key_bindings = KeyBindings()
+ handle = key_bindings.add
+ from . import search
+
+ @Condition
+ def search_buffer_is_empty() -> bool:
+ "Returns True when the search buffer is empty."
+ return get_app().current_buffer.text == ""
+
+ # Vi-style forward search.
+ handle(
+ "/",
+ filter=(vi_navigation_mode | vi_selection_mode) & ~vi_search_direction_reversed,
+ )(search.start_forward_incremental_search)
+ handle(
+ "?",
+ filter=(vi_navigation_mode | vi_selection_mode) & vi_search_direction_reversed,
+ )(search.start_forward_incremental_search)
+ handle("c-s")(search.start_forward_incremental_search)
+
+ # Vi-style backward search.
+ handle(
+ "?",
+ filter=(vi_navigation_mode | vi_selection_mode) & ~vi_search_direction_reversed,
+ )(search.start_reverse_incremental_search)
+ handle(
+ "/",
+ filter=(vi_navigation_mode | vi_selection_mode) & vi_search_direction_reversed,
+ )(search.start_reverse_incremental_search)
+ handle("c-r")(search.start_reverse_incremental_search)
+
+ # Apply the search. (At the / or ? prompt.)
+ handle("enter", filter=is_searching)(search.accept_search)
+
+ handle("c-r", filter=is_searching)(search.reverse_incremental_search)
+ handle("c-s", filter=is_searching)(search.forward_incremental_search)
+
+ handle("c-c")(search.abort_search)
+ handle("c-g")(search.abort_search)
+ handle("backspace", filter=search_buffer_is_empty)(search.abort_search)
+
+ # Handle escape. This should accept the search, just like readline.
+ # `abort_search` would be a meaningful alternative.
+ handle("escape")(search.accept_search)
+
+ return ConditionalKeyBindings(key_bindings, vi_mode)
diff --git a/src/prompt_toolkit/key_binding/defaults.py b/src/prompt_toolkit/key_binding/defaults.py
new file mode 100644
index 0000000..baa5974
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/defaults.py
@@ -0,0 +1,60 @@
+"""
+Default key bindings.::
+
+ key_bindings = load_key_bindings()
+ app = Application(key_bindings=key_bindings)
+"""
+from prompt_toolkit.filters import buffer_has_focus
+from prompt_toolkit.key_binding.bindings.basic import load_basic_bindings
+from prompt_toolkit.key_binding.bindings.cpr import load_cpr_bindings
+from prompt_toolkit.key_binding.bindings.emacs import (
+ load_emacs_bindings,
+ load_emacs_search_bindings,
+ load_emacs_shift_selection_bindings,
+)
+from prompt_toolkit.key_binding.bindings.mouse import load_mouse_bindings
+from prompt_toolkit.key_binding.bindings.vi import (
+ load_vi_bindings,
+ load_vi_search_bindings,
+)
+from prompt_toolkit.key_binding.key_bindings import (
+ ConditionalKeyBindings,
+ KeyBindingsBase,
+ merge_key_bindings,
+)
+
+__all__ = [
+ "load_key_bindings",
+]
+
+
+def load_key_bindings() -> KeyBindingsBase:
+ """
+ Create a KeyBindings object that contains the default key bindings.
+ """
+ all_bindings = merge_key_bindings(
+ [
+ # Load basic bindings.
+ load_basic_bindings(),
+ # Load emacs bindings.
+ load_emacs_bindings(),
+ load_emacs_search_bindings(),
+ load_emacs_shift_selection_bindings(),
+ # Load Vi bindings.
+ load_vi_bindings(),
+ load_vi_search_bindings(),
+ ]
+ )
+
+ return merge_key_bindings(
+ [
+ # Make sure that the above key bindings are only active if the
+ # currently focused control is a `BufferControl`. For other controls, we
+ # don't want these key bindings to intervene. (This would break "ptterm"
+ # for instance, which handles 'Keys.Any' in the user control itself.)
+ ConditionalKeyBindings(all_bindings, buffer_has_focus),
+ # Active, even when no buffer has been focused.
+ load_mouse_bindings(),
+ load_cpr_bindings(),
+ ]
+ )
diff --git a/src/prompt_toolkit/key_binding/digraphs.py b/src/prompt_toolkit/key_binding/digraphs.py
new file mode 100644
index 0000000..ad3d288
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/digraphs.py
@@ -0,0 +1,1377 @@
+"""
+Vi Digraphs.
+This is a list of special characters that can be inserted in Vi insert mode by
+pressing Control-K followed by to normal characters.
+
+Taken from Neovim and translated to Python:
+https://raw.githubusercontent.com/neovim/neovim/master/src/nvim/digraph.c
+"""
+from typing import Dict, Tuple
+
+__all__ = [
+ "DIGRAPHS",
+]
+
+# digraphs for Unicode from RFC1345
+# (also work for ISO-8859-1 aka latin1)
+DIGRAPHS: Dict[Tuple[str, str], int] = {
+ ("N", "U"): 0x00,
+ ("S", "H"): 0x01,
+ ("S", "X"): 0x02,
+ ("E", "X"): 0x03,
+ ("E", "T"): 0x04,
+ ("E", "Q"): 0x05,
+ ("A", "K"): 0x06,
+ ("B", "L"): 0x07,
+ ("B", "S"): 0x08,
+ ("H", "T"): 0x09,
+ ("L", "F"): 0x0A,
+ ("V", "T"): 0x0B,
+ ("F", "F"): 0x0C,
+ ("C", "R"): 0x0D,
+ ("S", "O"): 0x0E,
+ ("S", "I"): 0x0F,
+ ("D", "L"): 0x10,
+ ("D", "1"): 0x11,
+ ("D", "2"): 0x12,
+ ("D", "3"): 0x13,
+ ("D", "4"): 0x14,
+ ("N", "K"): 0x15,
+ ("S", "Y"): 0x16,
+ ("E", "B"): 0x17,
+ ("C", "N"): 0x18,
+ ("E", "M"): 0x19,
+ ("S", "B"): 0x1A,
+ ("E", "C"): 0x1B,
+ ("F", "S"): 0x1C,
+ ("G", "S"): 0x1D,
+ ("R", "S"): 0x1E,
+ ("U", "S"): 0x1F,
+ ("S", "P"): 0x20,
+ ("N", "b"): 0x23,
+ ("D", "O"): 0x24,
+ ("A", "t"): 0x40,
+ ("<", "("): 0x5B,
+ ("/", "/"): 0x5C,
+ (")", ">"): 0x5D,
+ ("'", ">"): 0x5E,
+ ("'", "!"): 0x60,
+ ("(", "!"): 0x7B,
+ ("!", "!"): 0x7C,
+ ("!", ")"): 0x7D,
+ ("'", "?"): 0x7E,
+ ("D", "T"): 0x7F,
+ ("P", "A"): 0x80,
+ ("H", "O"): 0x81,
+ ("B", "H"): 0x82,
+ ("N", "H"): 0x83,
+ ("I", "N"): 0x84,
+ ("N", "L"): 0x85,
+ ("S", "A"): 0x86,
+ ("E", "S"): 0x87,
+ ("H", "S"): 0x88,
+ ("H", "J"): 0x89,
+ ("V", "S"): 0x8A,
+ ("P", "D"): 0x8B,
+ ("P", "U"): 0x8C,
+ ("R", "I"): 0x8D,
+ ("S", "2"): 0x8E,
+ ("S", "3"): 0x8F,
+ ("D", "C"): 0x90,
+ ("P", "1"): 0x91,
+ ("P", "2"): 0x92,
+ ("T", "S"): 0x93,
+ ("C", "C"): 0x94,
+ ("M", "W"): 0x95,
+ ("S", "G"): 0x96,
+ ("E", "G"): 0x97,
+ ("S", "S"): 0x98,
+ ("G", "C"): 0x99,
+ ("S", "C"): 0x9A,
+ ("C", "I"): 0x9B,
+ ("S", "T"): 0x9C,
+ ("O", "C"): 0x9D,
+ ("P", "M"): 0x9E,
+ ("A", "C"): 0x9F,
+ ("N", "S"): 0xA0,
+ ("!", "I"): 0xA1,
+ ("C", "t"): 0xA2,
+ ("P", "d"): 0xA3,
+ ("C", "u"): 0xA4,
+ ("Y", "e"): 0xA5,
+ ("B", "B"): 0xA6,
+ ("S", "E"): 0xA7,
+ ("'", ":"): 0xA8,
+ ("C", "o"): 0xA9,
+ ("-", "a"): 0xAA,
+ ("<", "<"): 0xAB,
+ ("N", "O"): 0xAC,
+ ("-", "-"): 0xAD,
+ ("R", "g"): 0xAE,
+ ("'", "m"): 0xAF,
+ ("D", "G"): 0xB0,
+ ("+", "-"): 0xB1,
+ ("2", "S"): 0xB2,
+ ("3", "S"): 0xB3,
+ ("'", "'"): 0xB4,
+ ("M", "y"): 0xB5,
+ ("P", "I"): 0xB6,
+ (".", "M"): 0xB7,
+ ("'", ","): 0xB8,
+ ("1", "S"): 0xB9,
+ ("-", "o"): 0xBA,
+ (">", ">"): 0xBB,
+ ("1", "4"): 0xBC,
+ ("1", "2"): 0xBD,
+ ("3", "4"): 0xBE,
+ ("?", "I"): 0xBF,
+ ("A", "!"): 0xC0,
+ ("A", "'"): 0xC1,
+ ("A", ">"): 0xC2,
+ ("A", "?"): 0xC3,
+ ("A", ":"): 0xC4,
+ ("A", "A"): 0xC5,
+ ("A", "E"): 0xC6,
+ ("C", ","): 0xC7,
+ ("E", "!"): 0xC8,
+ ("E", "'"): 0xC9,
+ ("E", ">"): 0xCA,
+ ("E", ":"): 0xCB,
+ ("I", "!"): 0xCC,
+ ("I", "'"): 0xCD,
+ ("I", ">"): 0xCE,
+ ("I", ":"): 0xCF,
+ ("D", "-"): 0xD0,
+ ("N", "?"): 0xD1,
+ ("O", "!"): 0xD2,
+ ("O", "'"): 0xD3,
+ ("O", ">"): 0xD4,
+ ("O", "?"): 0xD5,
+ ("O", ":"): 0xD6,
+ ("*", "X"): 0xD7,
+ ("O", "/"): 0xD8,
+ ("U", "!"): 0xD9,
+ ("U", "'"): 0xDA,
+ ("U", ">"): 0xDB,
+ ("U", ":"): 0xDC,
+ ("Y", "'"): 0xDD,
+ ("T", "H"): 0xDE,
+ ("s", "s"): 0xDF,
+ ("a", "!"): 0xE0,
+ ("a", "'"): 0xE1,
+ ("a", ">"): 0xE2,
+ ("a", "?"): 0xE3,
+ ("a", ":"): 0xE4,
+ ("a", "a"): 0xE5,
+ ("a", "e"): 0xE6,
+ ("c", ","): 0xE7,
+ ("e", "!"): 0xE8,
+ ("e", "'"): 0xE9,
+ ("e", ">"): 0xEA,
+ ("e", ":"): 0xEB,
+ ("i", "!"): 0xEC,
+ ("i", "'"): 0xED,
+ ("i", ">"): 0xEE,
+ ("i", ":"): 0xEF,
+ ("d", "-"): 0xF0,
+ ("n", "?"): 0xF1,
+ ("o", "!"): 0xF2,
+ ("o", "'"): 0xF3,
+ ("o", ">"): 0xF4,
+ ("o", "?"): 0xF5,
+ ("o", ":"): 0xF6,
+ ("-", ":"): 0xF7,
+ ("o", "/"): 0xF8,
+ ("u", "!"): 0xF9,
+ ("u", "'"): 0xFA,
+ ("u", ">"): 0xFB,
+ ("u", ":"): 0xFC,
+ ("y", "'"): 0xFD,
+ ("t", "h"): 0xFE,
+ ("y", ":"): 0xFF,
+ ("A", "-"): 0x0100,
+ ("a", "-"): 0x0101,
+ ("A", "("): 0x0102,
+ ("a", "("): 0x0103,
+ ("A", ";"): 0x0104,
+ ("a", ";"): 0x0105,
+ ("C", "'"): 0x0106,
+ ("c", "'"): 0x0107,
+ ("C", ">"): 0x0108,
+ ("c", ">"): 0x0109,
+ ("C", "."): 0x010A,
+ ("c", "."): 0x010B,
+ ("C", "<"): 0x010C,
+ ("c", "<"): 0x010D,
+ ("D", "<"): 0x010E,
+ ("d", "<"): 0x010F,
+ ("D", "/"): 0x0110,
+ ("d", "/"): 0x0111,
+ ("E", "-"): 0x0112,
+ ("e", "-"): 0x0113,
+ ("E", "("): 0x0114,
+ ("e", "("): 0x0115,
+ ("E", "."): 0x0116,
+ ("e", "."): 0x0117,
+ ("E", ";"): 0x0118,
+ ("e", ";"): 0x0119,
+ ("E", "<"): 0x011A,
+ ("e", "<"): 0x011B,
+ ("G", ">"): 0x011C,
+ ("g", ">"): 0x011D,
+ ("G", "("): 0x011E,
+ ("g", "("): 0x011F,
+ ("G", "."): 0x0120,
+ ("g", "."): 0x0121,
+ ("G", ","): 0x0122,
+ ("g", ","): 0x0123,
+ ("H", ">"): 0x0124,
+ ("h", ">"): 0x0125,
+ ("H", "/"): 0x0126,
+ ("h", "/"): 0x0127,
+ ("I", "?"): 0x0128,
+ ("i", "?"): 0x0129,
+ ("I", "-"): 0x012A,
+ ("i", "-"): 0x012B,
+ ("I", "("): 0x012C,
+ ("i", "("): 0x012D,
+ ("I", ";"): 0x012E,
+ ("i", ";"): 0x012F,
+ ("I", "."): 0x0130,
+ ("i", "."): 0x0131,
+ ("I", "J"): 0x0132,
+ ("i", "j"): 0x0133,
+ ("J", ">"): 0x0134,
+ ("j", ">"): 0x0135,
+ ("K", ","): 0x0136,
+ ("k", ","): 0x0137,
+ ("k", "k"): 0x0138,
+ ("L", "'"): 0x0139,
+ ("l", "'"): 0x013A,
+ ("L", ","): 0x013B,
+ ("l", ","): 0x013C,
+ ("L", "<"): 0x013D,
+ ("l", "<"): 0x013E,
+ ("L", "."): 0x013F,
+ ("l", "."): 0x0140,
+ ("L", "/"): 0x0141,
+ ("l", "/"): 0x0142,
+ ("N", "'"): 0x0143,
+ ("n", "'"): 0x0144,
+ ("N", ","): 0x0145,
+ ("n", ","): 0x0146,
+ ("N", "<"): 0x0147,
+ ("n", "<"): 0x0148,
+ ("'", "n"): 0x0149,
+ ("N", "G"): 0x014A,
+ ("n", "g"): 0x014B,
+ ("O", "-"): 0x014C,
+ ("o", "-"): 0x014D,
+ ("O", "("): 0x014E,
+ ("o", "("): 0x014F,
+ ("O", '"'): 0x0150,
+ ("o", '"'): 0x0151,
+ ("O", "E"): 0x0152,
+ ("o", "e"): 0x0153,
+ ("R", "'"): 0x0154,
+ ("r", "'"): 0x0155,
+ ("R", ","): 0x0156,
+ ("r", ","): 0x0157,
+ ("R", "<"): 0x0158,
+ ("r", "<"): 0x0159,
+ ("S", "'"): 0x015A,
+ ("s", "'"): 0x015B,
+ ("S", ">"): 0x015C,
+ ("s", ">"): 0x015D,
+ ("S", ","): 0x015E,
+ ("s", ","): 0x015F,
+ ("S", "<"): 0x0160,
+ ("s", "<"): 0x0161,
+ ("T", ","): 0x0162,
+ ("t", ","): 0x0163,
+ ("T", "<"): 0x0164,
+ ("t", "<"): 0x0165,
+ ("T", "/"): 0x0166,
+ ("t", "/"): 0x0167,
+ ("U", "?"): 0x0168,
+ ("u", "?"): 0x0169,
+ ("U", "-"): 0x016A,
+ ("u", "-"): 0x016B,
+ ("U", "("): 0x016C,
+ ("u", "("): 0x016D,
+ ("U", "0"): 0x016E,
+ ("u", "0"): 0x016F,
+ ("U", '"'): 0x0170,
+ ("u", '"'): 0x0171,
+ ("U", ";"): 0x0172,
+ ("u", ";"): 0x0173,
+ ("W", ">"): 0x0174,
+ ("w", ">"): 0x0175,
+ ("Y", ">"): 0x0176,
+ ("y", ">"): 0x0177,
+ ("Y", ":"): 0x0178,
+ ("Z", "'"): 0x0179,
+ ("z", "'"): 0x017A,
+ ("Z", "."): 0x017B,
+ ("z", "."): 0x017C,
+ ("Z", "<"): 0x017D,
+ ("z", "<"): 0x017E,
+ ("O", "9"): 0x01A0,
+ ("o", "9"): 0x01A1,
+ ("O", "I"): 0x01A2,
+ ("o", "i"): 0x01A3,
+ ("y", "r"): 0x01A6,
+ ("U", "9"): 0x01AF,
+ ("u", "9"): 0x01B0,
+ ("Z", "/"): 0x01B5,
+ ("z", "/"): 0x01B6,
+ ("E", "D"): 0x01B7,
+ ("A", "<"): 0x01CD,
+ ("a", "<"): 0x01CE,
+ ("I", "<"): 0x01CF,
+ ("i", "<"): 0x01D0,
+ ("O", "<"): 0x01D1,
+ ("o", "<"): 0x01D2,
+ ("U", "<"): 0x01D3,
+ ("u", "<"): 0x01D4,
+ ("A", "1"): 0x01DE,
+ ("a", "1"): 0x01DF,
+ ("A", "7"): 0x01E0,
+ ("a", "7"): 0x01E1,
+ ("A", "3"): 0x01E2,
+ ("a", "3"): 0x01E3,
+ ("G", "/"): 0x01E4,
+ ("g", "/"): 0x01E5,
+ ("G", "<"): 0x01E6,
+ ("g", "<"): 0x01E7,
+ ("K", "<"): 0x01E8,
+ ("k", "<"): 0x01E9,
+ ("O", ";"): 0x01EA,
+ ("o", ";"): 0x01EB,
+ ("O", "1"): 0x01EC,
+ ("o", "1"): 0x01ED,
+ ("E", "Z"): 0x01EE,
+ ("e", "z"): 0x01EF,
+ ("j", "<"): 0x01F0,
+ ("G", "'"): 0x01F4,
+ ("g", "'"): 0x01F5,
+ (";", "S"): 0x02BF,
+ ("'", "<"): 0x02C7,
+ ("'", "("): 0x02D8,
+ ("'", "."): 0x02D9,
+ ("'", "0"): 0x02DA,
+ ("'", ";"): 0x02DB,
+ ("'", '"'): 0x02DD,
+ ("A", "%"): 0x0386,
+ ("E", "%"): 0x0388,
+ ("Y", "%"): 0x0389,
+ ("I", "%"): 0x038A,
+ ("O", "%"): 0x038C,
+ ("U", "%"): 0x038E,
+ ("W", "%"): 0x038F,
+ ("i", "3"): 0x0390,
+ ("A", "*"): 0x0391,
+ ("B", "*"): 0x0392,
+ ("G", "*"): 0x0393,
+ ("D", "*"): 0x0394,
+ ("E", "*"): 0x0395,
+ ("Z", "*"): 0x0396,
+ ("Y", "*"): 0x0397,
+ ("H", "*"): 0x0398,
+ ("I", "*"): 0x0399,
+ ("K", "*"): 0x039A,
+ ("L", "*"): 0x039B,
+ ("M", "*"): 0x039C,
+ ("N", "*"): 0x039D,
+ ("C", "*"): 0x039E,
+ ("O", "*"): 0x039F,
+ ("P", "*"): 0x03A0,
+ ("R", "*"): 0x03A1,
+ ("S", "*"): 0x03A3,
+ ("T", "*"): 0x03A4,
+ ("U", "*"): 0x03A5,
+ ("F", "*"): 0x03A6,
+ ("X", "*"): 0x03A7,
+ ("Q", "*"): 0x03A8,
+ ("W", "*"): 0x03A9,
+ ("J", "*"): 0x03AA,
+ ("V", "*"): 0x03AB,
+ ("a", "%"): 0x03AC,
+ ("e", "%"): 0x03AD,
+ ("y", "%"): 0x03AE,
+ ("i", "%"): 0x03AF,
+ ("u", "3"): 0x03B0,
+ ("a", "*"): 0x03B1,
+ ("b", "*"): 0x03B2,
+ ("g", "*"): 0x03B3,
+ ("d", "*"): 0x03B4,
+ ("e", "*"): 0x03B5,
+ ("z", "*"): 0x03B6,
+ ("y", "*"): 0x03B7,
+ ("h", "*"): 0x03B8,
+ ("i", "*"): 0x03B9,
+ ("k", "*"): 0x03BA,
+ ("l", "*"): 0x03BB,
+ ("m", "*"): 0x03BC,
+ ("n", "*"): 0x03BD,
+ ("c", "*"): 0x03BE,
+ ("o", "*"): 0x03BF,
+ ("p", "*"): 0x03C0,
+ ("r", "*"): 0x03C1,
+ ("*", "s"): 0x03C2,
+ ("s", "*"): 0x03C3,
+ ("t", "*"): 0x03C4,
+ ("u", "*"): 0x03C5,
+ ("f", "*"): 0x03C6,
+ ("x", "*"): 0x03C7,
+ ("q", "*"): 0x03C8,
+ ("w", "*"): 0x03C9,
+ ("j", "*"): 0x03CA,
+ ("v", "*"): 0x03CB,
+ ("o", "%"): 0x03CC,
+ ("u", "%"): 0x03CD,
+ ("w", "%"): 0x03CE,
+ ("'", "G"): 0x03D8,
+ (",", "G"): 0x03D9,
+ ("T", "3"): 0x03DA,
+ ("t", "3"): 0x03DB,
+ ("M", "3"): 0x03DC,
+ ("m", "3"): 0x03DD,
+ ("K", "3"): 0x03DE,
+ ("k", "3"): 0x03DF,
+ ("P", "3"): 0x03E0,
+ ("p", "3"): 0x03E1,
+ ("'", "%"): 0x03F4,
+ ("j", "3"): 0x03F5,
+ ("I", "O"): 0x0401,
+ ("D", "%"): 0x0402,
+ ("G", "%"): 0x0403,
+ ("I", "E"): 0x0404,
+ ("D", "S"): 0x0405,
+ ("I", "I"): 0x0406,
+ ("Y", "I"): 0x0407,
+ ("J", "%"): 0x0408,
+ ("L", "J"): 0x0409,
+ ("N", "J"): 0x040A,
+ ("T", "s"): 0x040B,
+ ("K", "J"): 0x040C,
+ ("V", "%"): 0x040E,
+ ("D", "Z"): 0x040F,
+ ("A", "="): 0x0410,
+ ("B", "="): 0x0411,
+ ("V", "="): 0x0412,
+ ("G", "="): 0x0413,
+ ("D", "="): 0x0414,
+ ("E", "="): 0x0415,
+ ("Z", "%"): 0x0416,
+ ("Z", "="): 0x0417,
+ ("I", "="): 0x0418,
+ ("J", "="): 0x0419,
+ ("K", "="): 0x041A,
+ ("L", "="): 0x041B,
+ ("M", "="): 0x041C,
+ ("N", "="): 0x041D,
+ ("O", "="): 0x041E,
+ ("P", "="): 0x041F,
+ ("R", "="): 0x0420,
+ ("S", "="): 0x0421,
+ ("T", "="): 0x0422,
+ ("U", "="): 0x0423,
+ ("F", "="): 0x0424,
+ ("H", "="): 0x0425,
+ ("C", "="): 0x0426,
+ ("C", "%"): 0x0427,
+ ("S", "%"): 0x0428,
+ ("S", "c"): 0x0429,
+ ("=", '"'): 0x042A,
+ ("Y", "="): 0x042B,
+ ("%", '"'): 0x042C,
+ ("J", "E"): 0x042D,
+ ("J", "U"): 0x042E,
+ ("J", "A"): 0x042F,
+ ("a", "="): 0x0430,
+ ("b", "="): 0x0431,
+ ("v", "="): 0x0432,
+ ("g", "="): 0x0433,
+ ("d", "="): 0x0434,
+ ("e", "="): 0x0435,
+ ("z", "%"): 0x0436,
+ ("z", "="): 0x0437,
+ ("i", "="): 0x0438,
+ ("j", "="): 0x0439,
+ ("k", "="): 0x043A,
+ ("l", "="): 0x043B,
+ ("m", "="): 0x043C,
+ ("n", "="): 0x043D,
+ ("o", "="): 0x043E,
+ ("p", "="): 0x043F,
+ ("r", "="): 0x0440,
+ ("s", "="): 0x0441,
+ ("t", "="): 0x0442,
+ ("u", "="): 0x0443,
+ ("f", "="): 0x0444,
+ ("h", "="): 0x0445,
+ ("c", "="): 0x0446,
+ ("c", "%"): 0x0447,
+ ("s", "%"): 0x0448,
+ ("s", "c"): 0x0449,
+ ("=", "'"): 0x044A,
+ ("y", "="): 0x044B,
+ ("%", "'"): 0x044C,
+ ("j", "e"): 0x044D,
+ ("j", "u"): 0x044E,
+ ("j", "a"): 0x044F,
+ ("i", "o"): 0x0451,
+ ("d", "%"): 0x0452,
+ ("g", "%"): 0x0453,
+ ("i", "e"): 0x0454,
+ ("d", "s"): 0x0455,
+ ("i", "i"): 0x0456,
+ ("y", "i"): 0x0457,
+ ("j", "%"): 0x0458,
+ ("l", "j"): 0x0459,
+ ("n", "j"): 0x045A,
+ ("t", "s"): 0x045B,
+ ("k", "j"): 0x045C,
+ ("v", "%"): 0x045E,
+ ("d", "z"): 0x045F,
+ ("Y", "3"): 0x0462,
+ ("y", "3"): 0x0463,
+ ("O", "3"): 0x046A,
+ ("o", "3"): 0x046B,
+ ("F", "3"): 0x0472,
+ ("f", "3"): 0x0473,
+ ("V", "3"): 0x0474,
+ ("v", "3"): 0x0475,
+ ("C", "3"): 0x0480,
+ ("c", "3"): 0x0481,
+ ("G", "3"): 0x0490,
+ ("g", "3"): 0x0491,
+ ("A", "+"): 0x05D0,
+ ("B", "+"): 0x05D1,
+ ("G", "+"): 0x05D2,
+ ("D", "+"): 0x05D3,
+ ("H", "+"): 0x05D4,
+ ("W", "+"): 0x05D5,
+ ("Z", "+"): 0x05D6,
+ ("X", "+"): 0x05D7,
+ ("T", "j"): 0x05D8,
+ ("J", "+"): 0x05D9,
+ ("K", "%"): 0x05DA,
+ ("K", "+"): 0x05DB,
+ ("L", "+"): 0x05DC,
+ ("M", "%"): 0x05DD,
+ ("M", "+"): 0x05DE,
+ ("N", "%"): 0x05DF,
+ ("N", "+"): 0x05E0,
+ ("S", "+"): 0x05E1,
+ ("E", "+"): 0x05E2,
+ ("P", "%"): 0x05E3,
+ ("P", "+"): 0x05E4,
+ ("Z", "j"): 0x05E5,
+ ("Z", "J"): 0x05E6,
+ ("Q", "+"): 0x05E7,
+ ("R", "+"): 0x05E8,
+ ("S", "h"): 0x05E9,
+ ("T", "+"): 0x05EA,
+ (",", "+"): 0x060C,
+ (";", "+"): 0x061B,
+ ("?", "+"): 0x061F,
+ ("H", "'"): 0x0621,
+ ("a", "M"): 0x0622,
+ ("a", "H"): 0x0623,
+ ("w", "H"): 0x0624,
+ ("a", "h"): 0x0625,
+ ("y", "H"): 0x0626,
+ ("a", "+"): 0x0627,
+ ("b", "+"): 0x0628,
+ ("t", "m"): 0x0629,
+ ("t", "+"): 0x062A,
+ ("t", "k"): 0x062B,
+ ("g", "+"): 0x062C,
+ ("h", "k"): 0x062D,
+ ("x", "+"): 0x062E,
+ ("d", "+"): 0x062F,
+ ("d", "k"): 0x0630,
+ ("r", "+"): 0x0631,
+ ("z", "+"): 0x0632,
+ ("s", "+"): 0x0633,
+ ("s", "n"): 0x0634,
+ ("c", "+"): 0x0635,
+ ("d", "d"): 0x0636,
+ ("t", "j"): 0x0637,
+ ("z", "H"): 0x0638,
+ ("e", "+"): 0x0639,
+ ("i", "+"): 0x063A,
+ ("+", "+"): 0x0640,
+ ("f", "+"): 0x0641,
+ ("q", "+"): 0x0642,
+ ("k", "+"): 0x0643,
+ ("l", "+"): 0x0644,
+ ("m", "+"): 0x0645,
+ ("n", "+"): 0x0646,
+ ("h", "+"): 0x0647,
+ ("w", "+"): 0x0648,
+ ("j", "+"): 0x0649,
+ ("y", "+"): 0x064A,
+ (":", "+"): 0x064B,
+ ('"', "+"): 0x064C,
+ ("=", "+"): 0x064D,
+ ("/", "+"): 0x064E,
+ ("'", "+"): 0x064F,
+ ("1", "+"): 0x0650,
+ ("3", "+"): 0x0651,
+ ("0", "+"): 0x0652,
+ ("a", "S"): 0x0670,
+ ("p", "+"): 0x067E,
+ ("v", "+"): 0x06A4,
+ ("g", "f"): 0x06AF,
+ ("0", "a"): 0x06F0,
+ ("1", "a"): 0x06F1,
+ ("2", "a"): 0x06F2,
+ ("3", "a"): 0x06F3,
+ ("4", "a"): 0x06F4,
+ ("5", "a"): 0x06F5,
+ ("6", "a"): 0x06F6,
+ ("7", "a"): 0x06F7,
+ ("8", "a"): 0x06F8,
+ ("9", "a"): 0x06F9,
+ ("B", "."): 0x1E02,
+ ("b", "."): 0x1E03,
+ ("B", "_"): 0x1E06,
+ ("b", "_"): 0x1E07,
+ ("D", "."): 0x1E0A,
+ ("d", "."): 0x1E0B,
+ ("D", "_"): 0x1E0E,
+ ("d", "_"): 0x1E0F,
+ ("D", ","): 0x1E10,
+ ("d", ","): 0x1E11,
+ ("F", "."): 0x1E1E,
+ ("f", "."): 0x1E1F,
+ ("G", "-"): 0x1E20,
+ ("g", "-"): 0x1E21,
+ ("H", "."): 0x1E22,
+ ("h", "."): 0x1E23,
+ ("H", ":"): 0x1E26,
+ ("h", ":"): 0x1E27,
+ ("H", ","): 0x1E28,
+ ("h", ","): 0x1E29,
+ ("K", "'"): 0x1E30,
+ ("k", "'"): 0x1E31,
+ ("K", "_"): 0x1E34,
+ ("k", "_"): 0x1E35,
+ ("L", "_"): 0x1E3A,
+ ("l", "_"): 0x1E3B,
+ ("M", "'"): 0x1E3E,
+ ("m", "'"): 0x1E3F,
+ ("M", "."): 0x1E40,
+ ("m", "."): 0x1E41,
+ ("N", "."): 0x1E44,
+ ("n", "."): 0x1E45,
+ ("N", "_"): 0x1E48,
+ ("n", "_"): 0x1E49,
+ ("P", "'"): 0x1E54,
+ ("p", "'"): 0x1E55,
+ ("P", "."): 0x1E56,
+ ("p", "."): 0x1E57,
+ ("R", "."): 0x1E58,
+ ("r", "."): 0x1E59,
+ ("R", "_"): 0x1E5E,
+ ("r", "_"): 0x1E5F,
+ ("S", "."): 0x1E60,
+ ("s", "."): 0x1E61,
+ ("T", "."): 0x1E6A,
+ ("t", "."): 0x1E6B,
+ ("T", "_"): 0x1E6E,
+ ("t", "_"): 0x1E6F,
+ ("V", "?"): 0x1E7C,
+ ("v", "?"): 0x1E7D,
+ ("W", "!"): 0x1E80,
+ ("w", "!"): 0x1E81,
+ ("W", "'"): 0x1E82,
+ ("w", "'"): 0x1E83,
+ ("W", ":"): 0x1E84,
+ ("w", ":"): 0x1E85,
+ ("W", "."): 0x1E86,
+ ("w", "."): 0x1E87,
+ ("X", "."): 0x1E8A,
+ ("x", "."): 0x1E8B,
+ ("X", ":"): 0x1E8C,
+ ("x", ":"): 0x1E8D,
+ ("Y", "."): 0x1E8E,
+ ("y", "."): 0x1E8F,
+ ("Z", ">"): 0x1E90,
+ ("z", ">"): 0x1E91,
+ ("Z", "_"): 0x1E94,
+ ("z", "_"): 0x1E95,
+ ("h", "_"): 0x1E96,
+ ("t", ":"): 0x1E97,
+ ("w", "0"): 0x1E98,
+ ("y", "0"): 0x1E99,
+ ("A", "2"): 0x1EA2,
+ ("a", "2"): 0x1EA3,
+ ("E", "2"): 0x1EBA,
+ ("e", "2"): 0x1EBB,
+ ("E", "?"): 0x1EBC,
+ ("e", "?"): 0x1EBD,
+ ("I", "2"): 0x1EC8,
+ ("i", "2"): 0x1EC9,
+ ("O", "2"): 0x1ECE,
+ ("o", "2"): 0x1ECF,
+ ("U", "2"): 0x1EE6,
+ ("u", "2"): 0x1EE7,
+ ("Y", "!"): 0x1EF2,
+ ("y", "!"): 0x1EF3,
+ ("Y", "2"): 0x1EF6,
+ ("y", "2"): 0x1EF7,
+ ("Y", "?"): 0x1EF8,
+ ("y", "?"): 0x1EF9,
+ (";", "'"): 0x1F00,
+ (",", "'"): 0x1F01,
+ (";", "!"): 0x1F02,
+ (",", "!"): 0x1F03,
+ ("?", ";"): 0x1F04,
+ ("?", ","): 0x1F05,
+ ("!", ":"): 0x1F06,
+ ("?", ":"): 0x1F07,
+ ("1", "N"): 0x2002,
+ ("1", "M"): 0x2003,
+ ("3", "M"): 0x2004,
+ ("4", "M"): 0x2005,
+ ("6", "M"): 0x2006,
+ ("1", "T"): 0x2009,
+ ("1", "H"): 0x200A,
+ ("-", "1"): 0x2010,
+ ("-", "N"): 0x2013,
+ ("-", "M"): 0x2014,
+ ("-", "3"): 0x2015,
+ ("!", "2"): 0x2016,
+ ("=", "2"): 0x2017,
+ ("'", "6"): 0x2018,
+ ("'", "9"): 0x2019,
+ (".", "9"): 0x201A,
+ ("9", "'"): 0x201B,
+ ('"', "6"): 0x201C,
+ ('"', "9"): 0x201D,
+ (":", "9"): 0x201E,
+ ("9", '"'): 0x201F,
+ ("/", "-"): 0x2020,
+ ("/", "="): 0x2021,
+ (".", "."): 0x2025,
+ ("%", "0"): 0x2030,
+ ("1", "'"): 0x2032,
+ ("2", "'"): 0x2033,
+ ("3", "'"): 0x2034,
+ ("1", '"'): 0x2035,
+ ("2", '"'): 0x2036,
+ ("3", '"'): 0x2037,
+ ("C", "a"): 0x2038,
+ ("<", "1"): 0x2039,
+ (">", "1"): 0x203A,
+ (":", "X"): 0x203B,
+ ("'", "-"): 0x203E,
+ ("/", "f"): 0x2044,
+ ("0", "S"): 0x2070,
+ ("4", "S"): 0x2074,
+ ("5", "S"): 0x2075,
+ ("6", "S"): 0x2076,
+ ("7", "S"): 0x2077,
+ ("8", "S"): 0x2078,
+ ("9", "S"): 0x2079,
+ ("+", "S"): 0x207A,
+ ("-", "S"): 0x207B,
+ ("=", "S"): 0x207C,
+ ("(", "S"): 0x207D,
+ (")", "S"): 0x207E,
+ ("n", "S"): 0x207F,
+ ("0", "s"): 0x2080,
+ ("1", "s"): 0x2081,
+ ("2", "s"): 0x2082,
+ ("3", "s"): 0x2083,
+ ("4", "s"): 0x2084,
+ ("5", "s"): 0x2085,
+ ("6", "s"): 0x2086,
+ ("7", "s"): 0x2087,
+ ("8", "s"): 0x2088,
+ ("9", "s"): 0x2089,
+ ("+", "s"): 0x208A,
+ ("-", "s"): 0x208B,
+ ("=", "s"): 0x208C,
+ ("(", "s"): 0x208D,
+ (")", "s"): 0x208E,
+ ("L", "i"): 0x20A4,
+ ("P", "t"): 0x20A7,
+ ("W", "="): 0x20A9,
+ ("=", "e"): 0x20AC, # euro
+ ("E", "u"): 0x20AC, # euro
+ ("=", "R"): 0x20BD, # rouble
+ ("=", "P"): 0x20BD, # rouble
+ ("o", "C"): 0x2103,
+ ("c", "o"): 0x2105,
+ ("o", "F"): 0x2109,
+ ("N", "0"): 0x2116,
+ ("P", "O"): 0x2117,
+ ("R", "x"): 0x211E,
+ ("S", "M"): 0x2120,
+ ("T", "M"): 0x2122,
+ ("O", "m"): 0x2126,
+ ("A", "O"): 0x212B,
+ ("1", "3"): 0x2153,
+ ("2", "3"): 0x2154,
+ ("1", "5"): 0x2155,
+ ("2", "5"): 0x2156,
+ ("3", "5"): 0x2157,
+ ("4", "5"): 0x2158,
+ ("1", "6"): 0x2159,
+ ("5", "6"): 0x215A,
+ ("1", "8"): 0x215B,
+ ("3", "8"): 0x215C,
+ ("5", "8"): 0x215D,
+ ("7", "8"): 0x215E,
+ ("1", "R"): 0x2160,
+ ("2", "R"): 0x2161,
+ ("3", "R"): 0x2162,
+ ("4", "R"): 0x2163,
+ ("5", "R"): 0x2164,
+ ("6", "R"): 0x2165,
+ ("7", "R"): 0x2166,
+ ("8", "R"): 0x2167,
+ ("9", "R"): 0x2168,
+ ("a", "R"): 0x2169,
+ ("b", "R"): 0x216A,
+ ("c", "R"): 0x216B,
+ ("1", "r"): 0x2170,
+ ("2", "r"): 0x2171,
+ ("3", "r"): 0x2172,
+ ("4", "r"): 0x2173,
+ ("5", "r"): 0x2174,
+ ("6", "r"): 0x2175,
+ ("7", "r"): 0x2176,
+ ("8", "r"): 0x2177,
+ ("9", "r"): 0x2178,
+ ("a", "r"): 0x2179,
+ ("b", "r"): 0x217A,
+ ("c", "r"): 0x217B,
+ ("<", "-"): 0x2190,
+ ("-", "!"): 0x2191,
+ ("-", ">"): 0x2192,
+ ("-", "v"): 0x2193,
+ ("<", ">"): 0x2194,
+ ("U", "D"): 0x2195,
+ ("<", "="): 0x21D0,
+ ("=", ">"): 0x21D2,
+ ("=", "="): 0x21D4,
+ ("F", "A"): 0x2200,
+ ("d", "P"): 0x2202,
+ ("T", "E"): 0x2203,
+ ("/", "0"): 0x2205,
+ ("D", "E"): 0x2206,
+ ("N", "B"): 0x2207,
+ ("(", "-"): 0x2208,
+ ("-", ")"): 0x220B,
+ ("*", "P"): 0x220F,
+ ("+", "Z"): 0x2211,
+ ("-", "2"): 0x2212,
+ ("-", "+"): 0x2213,
+ ("*", "-"): 0x2217,
+ ("O", "b"): 0x2218,
+ ("S", "b"): 0x2219,
+ ("R", "T"): 0x221A,
+ ("0", "("): 0x221D,
+ ("0", "0"): 0x221E,
+ ("-", "L"): 0x221F,
+ ("-", "V"): 0x2220,
+ ("P", "P"): 0x2225,
+ ("A", "N"): 0x2227,
+ ("O", "R"): 0x2228,
+ ("(", "U"): 0x2229,
+ (")", "U"): 0x222A,
+ ("I", "n"): 0x222B,
+ ("D", "I"): 0x222C,
+ ("I", "o"): 0x222E,
+ (".", ":"): 0x2234,
+ (":", "."): 0x2235,
+ (":", "R"): 0x2236,
+ (":", ":"): 0x2237,
+ ("?", "1"): 0x223C,
+ ("C", "G"): 0x223E,
+ ("?", "-"): 0x2243,
+ ("?", "="): 0x2245,
+ ("?", "2"): 0x2248,
+ ("=", "?"): 0x224C,
+ ("H", "I"): 0x2253,
+ ("!", "="): 0x2260,
+ ("=", "3"): 0x2261,
+ ("=", "<"): 0x2264,
+ (">", "="): 0x2265,
+ ("<", "*"): 0x226A,
+ ("*", ">"): 0x226B,
+ ("!", "<"): 0x226E,
+ ("!", ">"): 0x226F,
+ ("(", "C"): 0x2282,
+ (")", "C"): 0x2283,
+ ("(", "_"): 0x2286,
+ (")", "_"): 0x2287,
+ ("0", "."): 0x2299,
+ ("0", "2"): 0x229A,
+ ("-", "T"): 0x22A5,
+ (".", "P"): 0x22C5,
+ (":", "3"): 0x22EE,
+ (".", "3"): 0x22EF,
+ ("E", "h"): 0x2302,
+ ("<", "7"): 0x2308,
+ (">", "7"): 0x2309,
+ ("7", "<"): 0x230A,
+ ("7", ">"): 0x230B,
+ ("N", "I"): 0x2310,
+ ("(", "A"): 0x2312,
+ ("T", "R"): 0x2315,
+ ("I", "u"): 0x2320,
+ ("I", "l"): 0x2321,
+ ("<", "/"): 0x2329,
+ ("/", ">"): 0x232A,
+ ("V", "s"): 0x2423,
+ ("1", "h"): 0x2440,
+ ("3", "h"): 0x2441,
+ ("2", "h"): 0x2442,
+ ("4", "h"): 0x2443,
+ ("1", "j"): 0x2446,
+ ("2", "j"): 0x2447,
+ ("3", "j"): 0x2448,
+ ("4", "j"): 0x2449,
+ ("1", "."): 0x2488,
+ ("2", "."): 0x2489,
+ ("3", "."): 0x248A,
+ ("4", "."): 0x248B,
+ ("5", "."): 0x248C,
+ ("6", "."): 0x248D,
+ ("7", "."): 0x248E,
+ ("8", "."): 0x248F,
+ ("9", "."): 0x2490,
+ ("h", "h"): 0x2500,
+ ("H", "H"): 0x2501,
+ ("v", "v"): 0x2502,
+ ("V", "V"): 0x2503,
+ ("3", "-"): 0x2504,
+ ("3", "_"): 0x2505,
+ ("3", "!"): 0x2506,
+ ("3", "/"): 0x2507,
+ ("4", "-"): 0x2508,
+ ("4", "_"): 0x2509,
+ ("4", "!"): 0x250A,
+ ("4", "/"): 0x250B,
+ ("d", "r"): 0x250C,
+ ("d", "R"): 0x250D,
+ ("D", "r"): 0x250E,
+ ("D", "R"): 0x250F,
+ ("d", "l"): 0x2510,
+ ("d", "L"): 0x2511,
+ ("D", "l"): 0x2512,
+ ("L", "D"): 0x2513,
+ ("u", "r"): 0x2514,
+ ("u", "R"): 0x2515,
+ ("U", "r"): 0x2516,
+ ("U", "R"): 0x2517,
+ ("u", "l"): 0x2518,
+ ("u", "L"): 0x2519,
+ ("U", "l"): 0x251A,
+ ("U", "L"): 0x251B,
+ ("v", "r"): 0x251C,
+ ("v", "R"): 0x251D,
+ ("V", "r"): 0x2520,
+ ("V", "R"): 0x2523,
+ ("v", "l"): 0x2524,
+ ("v", "L"): 0x2525,
+ ("V", "l"): 0x2528,
+ ("V", "L"): 0x252B,
+ ("d", "h"): 0x252C,
+ ("d", "H"): 0x252F,
+ ("D", "h"): 0x2530,
+ ("D", "H"): 0x2533,
+ ("u", "h"): 0x2534,
+ ("u", "H"): 0x2537,
+ ("U", "h"): 0x2538,
+ ("U", "H"): 0x253B,
+ ("v", "h"): 0x253C,
+ ("v", "H"): 0x253F,
+ ("V", "h"): 0x2542,
+ ("V", "H"): 0x254B,
+ ("F", "D"): 0x2571,
+ ("B", "D"): 0x2572,
+ ("T", "B"): 0x2580,
+ ("L", "B"): 0x2584,
+ ("F", "B"): 0x2588,
+ ("l", "B"): 0x258C,
+ ("R", "B"): 0x2590,
+ (".", "S"): 0x2591,
+ (":", "S"): 0x2592,
+ ("?", "S"): 0x2593,
+ ("f", "S"): 0x25A0,
+ ("O", "S"): 0x25A1,
+ ("R", "O"): 0x25A2,
+ ("R", "r"): 0x25A3,
+ ("R", "F"): 0x25A4,
+ ("R", "Y"): 0x25A5,
+ ("R", "H"): 0x25A6,
+ ("R", "Z"): 0x25A7,
+ ("R", "K"): 0x25A8,
+ ("R", "X"): 0x25A9,
+ ("s", "B"): 0x25AA,
+ ("S", "R"): 0x25AC,
+ ("O", "r"): 0x25AD,
+ ("U", "T"): 0x25B2,
+ ("u", "T"): 0x25B3,
+ ("P", "R"): 0x25B6,
+ ("T", "r"): 0x25B7,
+ ("D", "t"): 0x25BC,
+ ("d", "T"): 0x25BD,
+ ("P", "L"): 0x25C0,
+ ("T", "l"): 0x25C1,
+ ("D", "b"): 0x25C6,
+ ("D", "w"): 0x25C7,
+ ("L", "Z"): 0x25CA,
+ ("0", "m"): 0x25CB,
+ ("0", "o"): 0x25CE,
+ ("0", "M"): 0x25CF,
+ ("0", "L"): 0x25D0,
+ ("0", "R"): 0x25D1,
+ ("S", "n"): 0x25D8,
+ ("I", "c"): 0x25D9,
+ ("F", "d"): 0x25E2,
+ ("B", "d"): 0x25E3,
+ ("*", "2"): 0x2605,
+ ("*", "1"): 0x2606,
+ ("<", "H"): 0x261C,
+ (">", "H"): 0x261E,
+ ("0", "u"): 0x263A,
+ ("0", "U"): 0x263B,
+ ("S", "U"): 0x263C,
+ ("F", "m"): 0x2640,
+ ("M", "l"): 0x2642,
+ ("c", "S"): 0x2660,
+ ("c", "H"): 0x2661,
+ ("c", "D"): 0x2662,
+ ("c", "C"): 0x2663,
+ ("M", "d"): 0x2669,
+ ("M", "8"): 0x266A,
+ ("M", "2"): 0x266B,
+ ("M", "b"): 0x266D,
+ ("M", "x"): 0x266E,
+ ("M", "X"): 0x266F,
+ ("O", "K"): 0x2713,
+ ("X", "X"): 0x2717,
+ ("-", "X"): 0x2720,
+ ("I", "S"): 0x3000,
+ (",", "_"): 0x3001,
+ (".", "_"): 0x3002,
+ ("+", '"'): 0x3003,
+ ("+", "_"): 0x3004,
+ ("*", "_"): 0x3005,
+ (";", "_"): 0x3006,
+ ("0", "_"): 0x3007,
+ ("<", "+"): 0x300A,
+ (">", "+"): 0x300B,
+ ("<", "'"): 0x300C,
+ (">", "'"): 0x300D,
+ ("<", '"'): 0x300E,
+ (">", '"'): 0x300F,
+ ("(", '"'): 0x3010,
+ (")", '"'): 0x3011,
+ ("=", "T"): 0x3012,
+ ("=", "_"): 0x3013,
+ ("(", "'"): 0x3014,
+ (")", "'"): 0x3015,
+ ("(", "I"): 0x3016,
+ (")", "I"): 0x3017,
+ ("-", "?"): 0x301C,
+ ("A", "5"): 0x3041,
+ ("a", "5"): 0x3042,
+ ("I", "5"): 0x3043,
+ ("i", "5"): 0x3044,
+ ("U", "5"): 0x3045,
+ ("u", "5"): 0x3046,
+ ("E", "5"): 0x3047,
+ ("e", "5"): 0x3048,
+ ("O", "5"): 0x3049,
+ ("o", "5"): 0x304A,
+ ("k", "a"): 0x304B,
+ ("g", "a"): 0x304C,
+ ("k", "i"): 0x304D,
+ ("g", "i"): 0x304E,
+ ("k", "u"): 0x304F,
+ ("g", "u"): 0x3050,
+ ("k", "e"): 0x3051,
+ ("g", "e"): 0x3052,
+ ("k", "o"): 0x3053,
+ ("g", "o"): 0x3054,
+ ("s", "a"): 0x3055,
+ ("z", "a"): 0x3056,
+ ("s", "i"): 0x3057,
+ ("z", "i"): 0x3058,
+ ("s", "u"): 0x3059,
+ ("z", "u"): 0x305A,
+ ("s", "e"): 0x305B,
+ ("z", "e"): 0x305C,
+ ("s", "o"): 0x305D,
+ ("z", "o"): 0x305E,
+ ("t", "a"): 0x305F,
+ ("d", "a"): 0x3060,
+ ("t", "i"): 0x3061,
+ ("d", "i"): 0x3062,
+ ("t", "U"): 0x3063,
+ ("t", "u"): 0x3064,
+ ("d", "u"): 0x3065,
+ ("t", "e"): 0x3066,
+ ("d", "e"): 0x3067,
+ ("t", "o"): 0x3068,
+ ("d", "o"): 0x3069,
+ ("n", "a"): 0x306A,
+ ("n", "i"): 0x306B,
+ ("n", "u"): 0x306C,
+ ("n", "e"): 0x306D,
+ ("n", "o"): 0x306E,
+ ("h", "a"): 0x306F,
+ ("b", "a"): 0x3070,
+ ("p", "a"): 0x3071,
+ ("h", "i"): 0x3072,
+ ("b", "i"): 0x3073,
+ ("p", "i"): 0x3074,
+ ("h", "u"): 0x3075,
+ ("b", "u"): 0x3076,
+ ("p", "u"): 0x3077,
+ ("h", "e"): 0x3078,
+ ("b", "e"): 0x3079,
+ ("p", "e"): 0x307A,
+ ("h", "o"): 0x307B,
+ ("b", "o"): 0x307C,
+ ("p", "o"): 0x307D,
+ ("m", "a"): 0x307E,
+ ("m", "i"): 0x307F,
+ ("m", "u"): 0x3080,
+ ("m", "e"): 0x3081,
+ ("m", "o"): 0x3082,
+ ("y", "A"): 0x3083,
+ ("y", "a"): 0x3084,
+ ("y", "U"): 0x3085,
+ ("y", "u"): 0x3086,
+ ("y", "O"): 0x3087,
+ ("y", "o"): 0x3088,
+ ("r", "a"): 0x3089,
+ ("r", "i"): 0x308A,
+ ("r", "u"): 0x308B,
+ ("r", "e"): 0x308C,
+ ("r", "o"): 0x308D,
+ ("w", "A"): 0x308E,
+ ("w", "a"): 0x308F,
+ ("w", "i"): 0x3090,
+ ("w", "e"): 0x3091,
+ ("w", "o"): 0x3092,
+ ("n", "5"): 0x3093,
+ ("v", "u"): 0x3094,
+ ('"', "5"): 0x309B,
+ ("0", "5"): 0x309C,
+ ("*", "5"): 0x309D,
+ ("+", "5"): 0x309E,
+ ("a", "6"): 0x30A1,
+ ("A", "6"): 0x30A2,
+ ("i", "6"): 0x30A3,
+ ("I", "6"): 0x30A4,
+ ("u", "6"): 0x30A5,
+ ("U", "6"): 0x30A6,
+ ("e", "6"): 0x30A7,
+ ("E", "6"): 0x30A8,
+ ("o", "6"): 0x30A9,
+ ("O", "6"): 0x30AA,
+ ("K", "a"): 0x30AB,
+ ("G", "a"): 0x30AC,
+ ("K", "i"): 0x30AD,
+ ("G", "i"): 0x30AE,
+ ("K", "u"): 0x30AF,
+ ("G", "u"): 0x30B0,
+ ("K", "e"): 0x30B1,
+ ("G", "e"): 0x30B2,
+ ("K", "o"): 0x30B3,
+ ("G", "o"): 0x30B4,
+ ("S", "a"): 0x30B5,
+ ("Z", "a"): 0x30B6,
+ ("S", "i"): 0x30B7,
+ ("Z", "i"): 0x30B8,
+ ("S", "u"): 0x30B9,
+ ("Z", "u"): 0x30BA,
+ ("S", "e"): 0x30BB,
+ ("Z", "e"): 0x30BC,
+ ("S", "o"): 0x30BD,
+ ("Z", "o"): 0x30BE,
+ ("T", "a"): 0x30BF,
+ ("D", "a"): 0x30C0,
+ ("T", "i"): 0x30C1,
+ ("D", "i"): 0x30C2,
+ ("T", "U"): 0x30C3,
+ ("T", "u"): 0x30C4,
+ ("D", "u"): 0x30C5,
+ ("T", "e"): 0x30C6,
+ ("D", "e"): 0x30C7,
+ ("T", "o"): 0x30C8,
+ ("D", "o"): 0x30C9,
+ ("N", "a"): 0x30CA,
+ ("N", "i"): 0x30CB,
+ ("N", "u"): 0x30CC,
+ ("N", "e"): 0x30CD,
+ ("N", "o"): 0x30CE,
+ ("H", "a"): 0x30CF,
+ ("B", "a"): 0x30D0,
+ ("P", "a"): 0x30D1,
+ ("H", "i"): 0x30D2,
+ ("B", "i"): 0x30D3,
+ ("P", "i"): 0x30D4,
+ ("H", "u"): 0x30D5,
+ ("B", "u"): 0x30D6,
+ ("P", "u"): 0x30D7,
+ ("H", "e"): 0x30D8,
+ ("B", "e"): 0x30D9,
+ ("P", "e"): 0x30DA,
+ ("H", "o"): 0x30DB,
+ ("B", "o"): 0x30DC,
+ ("P", "o"): 0x30DD,
+ ("M", "a"): 0x30DE,
+ ("M", "i"): 0x30DF,
+ ("M", "u"): 0x30E0,
+ ("M", "e"): 0x30E1,
+ ("M", "o"): 0x30E2,
+ ("Y", "A"): 0x30E3,
+ ("Y", "a"): 0x30E4,
+ ("Y", "U"): 0x30E5,
+ ("Y", "u"): 0x30E6,
+ ("Y", "O"): 0x30E7,
+ ("Y", "o"): 0x30E8,
+ ("R", "a"): 0x30E9,
+ ("R", "i"): 0x30EA,
+ ("R", "u"): 0x30EB,
+ ("R", "e"): 0x30EC,
+ ("R", "o"): 0x30ED,
+ ("W", "A"): 0x30EE,
+ ("W", "a"): 0x30EF,
+ ("W", "i"): 0x30F0,
+ ("W", "e"): 0x30F1,
+ ("W", "o"): 0x30F2,
+ ("N", "6"): 0x30F3,
+ ("V", "u"): 0x30F4,
+ ("K", "A"): 0x30F5,
+ ("K", "E"): 0x30F6,
+ ("V", "a"): 0x30F7,
+ ("V", "i"): 0x30F8,
+ ("V", "e"): 0x30F9,
+ ("V", "o"): 0x30FA,
+ (".", "6"): 0x30FB,
+ ("-", "6"): 0x30FC,
+ ("*", "6"): 0x30FD,
+ ("+", "6"): 0x30FE,
+ ("b", "4"): 0x3105,
+ ("p", "4"): 0x3106,
+ ("m", "4"): 0x3107,
+ ("f", "4"): 0x3108,
+ ("d", "4"): 0x3109,
+ ("t", "4"): 0x310A,
+ ("n", "4"): 0x310B,
+ ("l", "4"): 0x310C,
+ ("g", "4"): 0x310D,
+ ("k", "4"): 0x310E,
+ ("h", "4"): 0x310F,
+ ("j", "4"): 0x3110,
+ ("q", "4"): 0x3111,
+ ("x", "4"): 0x3112,
+ ("z", "h"): 0x3113,
+ ("c", "h"): 0x3114,
+ ("s", "h"): 0x3115,
+ ("r", "4"): 0x3116,
+ ("z", "4"): 0x3117,
+ ("c", "4"): 0x3118,
+ ("s", "4"): 0x3119,
+ ("a", "4"): 0x311A,
+ ("o", "4"): 0x311B,
+ ("e", "4"): 0x311C,
+ ("a", "i"): 0x311E,
+ ("e", "i"): 0x311F,
+ ("a", "u"): 0x3120,
+ ("o", "u"): 0x3121,
+ ("a", "n"): 0x3122,
+ ("e", "n"): 0x3123,
+ ("a", "N"): 0x3124,
+ ("e", "N"): 0x3125,
+ ("e", "r"): 0x3126,
+ ("i", "4"): 0x3127,
+ ("u", "4"): 0x3128,
+ ("i", "u"): 0x3129,
+ ("v", "4"): 0x312A,
+ ("n", "G"): 0x312B,
+ ("g", "n"): 0x312C,
+ ("1", "c"): 0x3220,
+ ("2", "c"): 0x3221,
+ ("3", "c"): 0x3222,
+ ("4", "c"): 0x3223,
+ ("5", "c"): 0x3224,
+ ("6", "c"): 0x3225,
+ ("7", "c"): 0x3226,
+ ("8", "c"): 0x3227,
+ ("9", "c"): 0x3228,
+ # code points 0xe000 - 0xefff excluded, they have no assigned
+ # characters, only used in proposals.
+ ("f", "f"): 0xFB00,
+ ("f", "i"): 0xFB01,
+ ("f", "l"): 0xFB02,
+ ("f", "t"): 0xFB05,
+ ("s", "t"): 0xFB06,
+ # Vim 5.x compatible digraphs that don't conflict with the above
+ ("~", "!"): 161,
+ ("c", "|"): 162,
+ ("$", "$"): 163,
+ ("o", "x"): 164, # currency symbol in ISO 8859-1
+ ("Y", "-"): 165,
+ ("|", "|"): 166,
+ ("c", "O"): 169,
+ ("-", ","): 172,
+ ("-", "="): 175,
+ ("~", "o"): 176,
+ ("2", "2"): 178,
+ ("3", "3"): 179,
+ ("p", "p"): 182,
+ ("~", "."): 183,
+ ("1", "1"): 185,
+ ("~", "?"): 191,
+ ("A", "`"): 192,
+ ("A", "^"): 194,
+ ("A", "~"): 195,
+ ("A", '"'): 196,
+ ("A", "@"): 197,
+ ("E", "`"): 200,
+ ("E", "^"): 202,
+ ("E", '"'): 203,
+ ("I", "`"): 204,
+ ("I", "^"): 206,
+ ("I", '"'): 207,
+ ("N", "~"): 209,
+ ("O", "`"): 210,
+ ("O", "^"): 212,
+ ("O", "~"): 213,
+ ("/", "\\"): 215, # multiplication symbol in ISO 8859-1
+ ("U", "`"): 217,
+ ("U", "^"): 219,
+ ("I", "p"): 222,
+ ("a", "`"): 224,
+ ("a", "^"): 226,
+ ("a", "~"): 227,
+ ("a", '"'): 228,
+ ("a", "@"): 229,
+ ("e", "`"): 232,
+ ("e", "^"): 234,
+ ("e", '"'): 235,
+ ("i", "`"): 236,
+ ("i", "^"): 238,
+ ("n", "~"): 241,
+ ("o", "`"): 242,
+ ("o", "^"): 244,
+ ("o", "~"): 245,
+ ("u", "`"): 249,
+ ("u", "^"): 251,
+ ("y", '"'): 255,
+}
diff --git a/src/prompt_toolkit/key_binding/emacs_state.py b/src/prompt_toolkit/key_binding/emacs_state.py
new file mode 100644
index 0000000..4c99622
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/emacs_state.py
@@ -0,0 +1,36 @@
+from typing import List, Optional
+
+from .key_processor import KeyPress
+
+__all__ = [
+ "EmacsState",
+]
+
+
+class EmacsState:
+ """
+ Mutable class to hold Emacs specific state.
+ """
+
+ def __init__(self) -> None:
+ # Simple macro recording. (Like Readline does.)
+ # (For Emacs mode.)
+ self.macro: Optional[List[KeyPress]] = []
+ self.current_recording: Optional[List[KeyPress]] = None
+
+ def reset(self) -> None:
+ self.current_recording = None
+
+ @property
+ def is_recording(self) -> bool:
+ "Tell whether we are recording a macro."
+ return self.current_recording is not None
+
+ def start_macro(self) -> None:
+ "Start recording macro."
+ self.current_recording = []
+
+ def end_macro(self) -> None:
+ "End recording macro."
+ self.macro = self.current_recording
+ self.current_recording = None
diff --git a/src/prompt_toolkit/key_binding/key_bindings.py b/src/prompt_toolkit/key_binding/key_bindings.py
new file mode 100644
index 0000000..03bc79e
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/key_bindings.py
@@ -0,0 +1,672 @@
+"""
+Key bindings registry.
+
+A `KeyBindings` object is a container that holds a list of key bindings. It has a
+very efficient internal data structure for checking which key bindings apply
+for a pressed key.
+
+Typical usage::
+
+ kb = KeyBindings()
+
+ @kb.add(Keys.ControlX, Keys.ControlC, filter=INSERT)
+ def handler(event):
+ # Handle ControlX-ControlC key sequence.
+ pass
+
+It is also possible to combine multiple KeyBindings objects. We do this in the
+default key bindings. There are some KeyBindings objects that contain the Emacs
+bindings, while others contain the Vi bindings. They are merged together using
+`merge_key_bindings`.
+
+We also have a `ConditionalKeyBindings` object that can enable/disable a group of
+key bindings at once.
+
+
+It is also possible to add a filter to a function, before a key binding has
+been assigned, through the `key_binding` decorator.::
+
+ # First define a key handler with the `filter`.
+ @key_binding(filter=condition)
+ def my_key_binding(event):
+ ...
+
+ # Later, add it to the key bindings.
+ kb.add(Keys.A, my_key_binding)
+"""
+from abc import ABCMeta, abstractmethod, abstractproperty
+from inspect import isawaitable
+from typing import (
+ TYPE_CHECKING,
+ Awaitable,
+ Callable,
+ Hashable,
+ List,
+ Optional,
+ Sequence,
+ Tuple,
+ TypeVar,
+ Union,
+ cast,
+)
+
+from prompt_toolkit.cache import SimpleCache
+from prompt_toolkit.filters import FilterOrBool, Never, to_filter
+from prompt_toolkit.keys import KEY_ALIASES, Keys
+
+if TYPE_CHECKING:
+ # Avoid circular imports.
+ from .key_processor import KeyPressEvent
+
+ # The only two return values for a mouse hander (and key bindings) are
+ # `None` and `NotImplemented`. For the type checker it's best to annotate
+ # this as `object`. (The consumer never expects a more specific instance:
+ # checking for NotImplemented can be done using `is NotImplemented`.)
+ NotImplementedOrNone = object
+ # Other non-working options are:
+ # * Optional[Literal[NotImplemented]]
+ # --> Doesn't work, Literal can't take an Any.
+ # * None
+ # --> Doesn't work. We can't assign the result of a function that
+ # returns `None` to a variable.
+ # * Any
+ # --> Works, but too broad.
+
+
+__all__ = [
+ "NotImplementedOrNone",
+ "Binding",
+ "KeyBindingsBase",
+ "KeyBindings",
+ "ConditionalKeyBindings",
+ "merge_key_bindings",
+ "DynamicKeyBindings",
+ "GlobalOnlyKeyBindings",
+]
+
+# Key bindings can be regular functions or coroutines.
+# In both cases, if they return `NotImplemented`, the UI won't be invalidated.
+# This is mainly used in case of mouse move events, to prevent excessive
+# repainting during mouse move events.
+KeyHandlerCallable = Callable[
+ ["KeyPressEvent"], Union["NotImplementedOrNone", Awaitable["NotImplementedOrNone"]]
+]
+
+
+class Binding:
+ """
+ Key binding: (key sequence + handler + filter).
+ (Immutable binding class.)
+
+ :param record_in_macro: When True, don't record this key binding when a
+ macro is recorded.
+ """
+
+ def __init__(
+ self,
+ keys: Tuple[Union[Keys, str], ...],
+ handler: KeyHandlerCallable,
+ filter: FilterOrBool = True,
+ eager: FilterOrBool = False,
+ is_global: FilterOrBool = False,
+ save_before: Callable[["KeyPressEvent"], bool] = (lambda e: True),
+ record_in_macro: FilterOrBool = True,
+ ) -> None:
+ self.keys = keys
+ self.handler = handler
+ self.filter = to_filter(filter)
+ self.eager = to_filter(eager)
+ self.is_global = to_filter(is_global)
+ self.save_before = save_before
+ self.record_in_macro = to_filter(record_in_macro)
+
+ def call(self, event: "KeyPressEvent") -> None:
+ result = self.handler(event)
+
+ # If the handler is a coroutine, create an asyncio task.
+ if isawaitable(result):
+ awaitable = cast(Awaitable["NotImplementedOrNone"], result)
+
+ async def bg_task() -> None:
+ result = await awaitable
+ if result != NotImplemented:
+ event.app.invalidate()
+
+ event.app.create_background_task(bg_task())
+
+ elif result != NotImplemented:
+ event.app.invalidate()
+
+ def __repr__(self) -> str:
+ return "{}(keys={!r}, handler={!r})".format(
+ self.__class__.__name__,
+ self.keys,
+ self.handler,
+ )
+
+
+# Sequence of keys presses.
+KeysTuple = Tuple[Union[Keys, str], ...]
+
+
+class KeyBindingsBase(metaclass=ABCMeta):
+ """
+ Interface for a KeyBindings.
+ """
+
+ @abstractproperty
+ def _version(self) -> Hashable:
+ """
+ For cache invalidation. - This should increase every time that
+ something changes.
+ """
+ return 0
+
+ @abstractmethod
+ def get_bindings_for_keys(self, keys: KeysTuple) -> List[Binding]:
+ """
+ Return a list of key bindings that can handle these keys.
+ (This return also inactive bindings, so the `filter` still has to be
+ called, for checking it.)
+
+ :param keys: tuple of keys.
+ """
+ return []
+
+ @abstractmethod
+ def get_bindings_starting_with_keys(self, keys: KeysTuple) -> List[Binding]:
+ """
+ Return a list of key bindings that handle a key sequence starting with
+ `keys`. (It does only return bindings for which the sequences are
+ longer than `keys`. And like `get_bindings_for_keys`, it also includes
+ inactive bindings.)
+
+ :param keys: tuple of keys.
+ """
+ return []
+
+ @abstractproperty
+ def bindings(self) -> List[Binding]:
+ """
+ List of `Binding` objects.
+ (These need to be exposed, so that `KeyBindings` objects can be merged
+ together.)
+ """
+ return []
+
+ # `add` and `remove` don't have to be part of this interface.
+
+
+T = TypeVar("T", bound=Union[KeyHandlerCallable, Binding])
+
+
+class KeyBindings(KeyBindingsBase):
+ """
+ A container for a set of key bindings.
+
+ Example usage::
+
+ kb = KeyBindings()
+
+ @kb.add('c-t')
+ def _(event):
+ print('Control-T pressed')
+
+ @kb.add('c-a', 'c-b')
+ def _(event):
+ print('Control-A pressed, followed by Control-B')
+
+ @kb.add('c-x', filter=is_searching)
+ def _(event):
+ print('Control-X pressed') # Works only if we are searching.
+
+ """
+
+ def __init__(self) -> None:
+ self._bindings: List[Binding] = []
+ self._get_bindings_for_keys_cache: SimpleCache[
+ KeysTuple, List[Binding]
+ ] = SimpleCache(maxsize=10000)
+ self._get_bindings_starting_with_keys_cache: SimpleCache[
+ KeysTuple, List[Binding]
+ ] = SimpleCache(maxsize=1000)
+ self.__version = 0 # For cache invalidation.
+
+ def _clear_cache(self) -> None:
+ self.__version += 1
+ self._get_bindings_for_keys_cache.clear()
+ self._get_bindings_starting_with_keys_cache.clear()
+
+ @property
+ def bindings(self) -> List[Binding]:
+ return self._bindings
+
+ @property
+ def _version(self) -> Hashable:
+ return self.__version
+
+ def add(
+ self,
+ *keys: Union[Keys, str],
+ filter: FilterOrBool = True,
+ eager: FilterOrBool = False,
+ is_global: FilterOrBool = False,
+ save_before: Callable[["KeyPressEvent"], bool] = (lambda e: True),
+ record_in_macro: FilterOrBool = True,
+ ) -> Callable[[T], T]:
+ """
+ Decorator for adding a key bindings.
+
+ :param filter: :class:`~prompt_toolkit.filters.Filter` to determine
+ when this key binding is active.
+ :param eager: :class:`~prompt_toolkit.filters.Filter` or `bool`.
+ When True, ignore potential longer matches when this key binding is
+ hit. E.g. when there is an active eager key binding for Ctrl-X,
+ execute the handler immediately and ignore the key binding for
+ Ctrl-X Ctrl-E of which it is a prefix.
+ :param is_global: When this key bindings is added to a `Container` or
+ `Control`, make it a global (always active) binding.
+ :param save_before: Callable that takes an `Event` and returns True if
+ we should save the current buffer, before handling the event.
+ (That's the default.)
+ :param record_in_macro: Record these key bindings when a macro is
+ being recorded. (True by default.)
+ """
+ assert keys
+
+ keys = tuple(_parse_key(k) for k in keys)
+
+ if isinstance(filter, Never):
+ # When a filter is Never, it will always stay disabled, so in that
+ # case don't bother putting it in the key bindings. It will slow
+ # down every key press otherwise.
+ def decorator(func: T) -> T:
+ return func
+
+ else:
+
+ def decorator(func: T) -> T:
+ if isinstance(func, Binding):
+ # We're adding an existing Binding object.
+ self.bindings.append(
+ Binding(
+ keys,
+ func.handler,
+ filter=func.filter & to_filter(filter),
+ eager=to_filter(eager) | func.eager,
+ is_global=to_filter(is_global) | func.is_global,
+ save_before=func.save_before,
+ record_in_macro=func.record_in_macro,
+ )
+ )
+ else:
+ self.bindings.append(
+ Binding(
+ keys,
+ cast(KeyHandlerCallable, func),
+ filter=filter,
+ eager=eager,
+ is_global=is_global,
+ save_before=save_before,
+ record_in_macro=record_in_macro,
+ )
+ )
+ self._clear_cache()
+
+ return func
+
+ return decorator
+
+ def remove(self, *args: Union[Keys, str, KeyHandlerCallable]) -> None:
+ """
+ Remove a key binding.
+
+ This expects either a function that was given to `add` method as
+ parameter or a sequence of key bindings.
+
+ Raises `ValueError` when no bindings was found.
+
+ Usage::
+
+ remove(handler) # Pass handler.
+ remove('c-x', 'c-a') # Or pass the key bindings.
+ """
+ found = False
+
+ if callable(args[0]):
+ assert len(args) == 1
+ function = args[0]
+
+ # Remove the given function.
+ for b in self.bindings:
+ if b.handler == function:
+ self.bindings.remove(b)
+ found = True
+
+ else:
+ assert len(args) > 0
+ args = cast(Tuple[Union[Keys, str]], args)
+
+ # Remove this sequence of key bindings.
+ keys = tuple(_parse_key(k) for k in args)
+
+ for b in self.bindings:
+ if b.keys == keys:
+ self.bindings.remove(b)
+ found = True
+
+ if found:
+ self._clear_cache()
+ else:
+ # No key binding found for this function. Raise ValueError.
+ raise ValueError(f"Binding not found: {function!r}")
+
+ # For backwards-compatibility.
+ add_binding = add
+ remove_binding = remove
+
+ def get_bindings_for_keys(self, keys: KeysTuple) -> List[Binding]:
+ """
+ Return a list of key bindings that can handle this key.
+ (This return also inactive bindings, so the `filter` still has to be
+ called, for checking it.)
+
+ :param keys: tuple of keys.
+ """
+
+ def get() -> List[Binding]:
+ result: List[Tuple[int, Binding]] = []
+
+ for b in self.bindings:
+ if len(keys) == len(b.keys):
+ match = True
+ any_count = 0
+
+ for i, j in zip(b.keys, keys):
+ if i != j and i != Keys.Any:
+ match = False
+ break
+
+ if i == Keys.Any:
+ any_count += 1
+
+ if match:
+ result.append((any_count, b))
+
+ # Place bindings that have more 'Any' occurrences in them at the end.
+ result = sorted(result, key=lambda item: -item[0])
+
+ return [item[1] for item in result]
+
+ return self._get_bindings_for_keys_cache.get(keys, get)
+
+ def get_bindings_starting_with_keys(self, keys: KeysTuple) -> List[Binding]:
+ """
+ Return a list of key bindings that handle a key sequence starting with
+ `keys`. (It does only return bindings for which the sequences are
+ longer than `keys`. And like `get_bindings_for_keys`, it also includes
+ inactive bindings.)
+
+ :param keys: tuple of keys.
+ """
+
+ def get() -> List[Binding]:
+ result = []
+ for b in self.bindings:
+ if len(keys) < len(b.keys):
+ match = True
+ for i, j in zip(b.keys, keys):
+ if i != j and i != Keys.Any:
+ match = False
+ break
+ if match:
+ result.append(b)
+ return result
+
+ return self._get_bindings_starting_with_keys_cache.get(keys, get)
+
+
+def _parse_key(key: Union[Keys, str]) -> Union[str, Keys]:
+ """
+ Replace key by alias and verify whether it's a valid one.
+ """
+ # Already a parse key? -> Return it.
+ if isinstance(key, Keys):
+ return key
+
+ # Lookup aliases.
+ key = KEY_ALIASES.get(key, key)
+
+ # Replace 'space' by ' '
+ if key == "space":
+ key = " "
+
+ # Return as `Key` object when it's a special key.
+ try:
+ return Keys(key)
+ except ValueError:
+ pass
+
+ # Final validation.
+ if len(key) != 1:
+ raise ValueError(f"Invalid key: {key}")
+
+ return key
+
+
+def key_binding(
+ filter: FilterOrBool = True,
+ eager: FilterOrBool = False,
+ is_global: FilterOrBool = False,
+ save_before: Callable[["KeyPressEvent"], bool] = (lambda event: True),
+ record_in_macro: FilterOrBool = True,
+) -> Callable[[KeyHandlerCallable], Binding]:
+ """
+ Decorator that turn a function into a `Binding` object. This can be added
+ to a `KeyBindings` object when a key binding is assigned.
+ """
+ assert save_before is None or callable(save_before)
+
+ filter = to_filter(filter)
+ eager = to_filter(eager)
+ is_global = to_filter(is_global)
+ save_before = save_before
+ record_in_macro = to_filter(record_in_macro)
+ keys = ()
+
+ def decorator(function: KeyHandlerCallable) -> Binding:
+ return Binding(
+ keys,
+ function,
+ filter=filter,
+ eager=eager,
+ is_global=is_global,
+ save_before=save_before,
+ record_in_macro=record_in_macro,
+ )
+
+ return decorator
+
+
+class _Proxy(KeyBindingsBase):
+ """
+ Common part for ConditionalKeyBindings and _MergedKeyBindings.
+ """
+
+ def __init__(self) -> None:
+ # `KeyBindings` to be synchronized with all the others.
+ self._bindings2: KeyBindingsBase = KeyBindings()
+ self._last_version: Hashable = ()
+
+ def _update_cache(self) -> None:
+ """
+ If `self._last_version` is outdated, then this should update
+ the version and `self._bindings2`.
+ """
+ raise NotImplementedError
+
+ # Proxy methods to self._bindings2.
+
+ @property
+ def bindings(self) -> List[Binding]:
+ self._update_cache()
+ return self._bindings2.bindings
+
+ @property
+ def _version(self) -> Hashable:
+ self._update_cache()
+ return self._last_version
+
+ def get_bindings_for_keys(self, keys: KeysTuple) -> List[Binding]:
+ self._update_cache()
+ return self._bindings2.get_bindings_for_keys(keys)
+
+ def get_bindings_starting_with_keys(self, keys: KeysTuple) -> List[Binding]:
+ self._update_cache()
+ return self._bindings2.get_bindings_starting_with_keys(keys)
+
+
+class ConditionalKeyBindings(_Proxy):
+ """
+ Wraps around a `KeyBindings`. Disable/enable all the key bindings according to
+ the given (additional) filter.::
+
+ @Condition
+ def setting_is_true():
+ return True # or False
+
+ registry = ConditionalKeyBindings(key_bindings, setting_is_true)
+
+ When new key bindings are added to this object. They are also
+ enable/disabled according to the given `filter`.
+
+ :param registries: List of :class:`.KeyBindings` objects.
+ :param filter: :class:`~prompt_toolkit.filters.Filter` object.
+ """
+
+ def __init__(
+ self, key_bindings: KeyBindingsBase, filter: FilterOrBool = True
+ ) -> None:
+
+ _Proxy.__init__(self)
+
+ self.key_bindings = key_bindings
+ self.filter = to_filter(filter)
+
+ def _update_cache(self) -> None:
+ "If the original key bindings was changed. Update our copy version."
+ expected_version = self.key_bindings._version
+
+ if self._last_version != expected_version:
+ bindings2 = KeyBindings()
+
+ # Copy all bindings from `self.key_bindings`, adding our condition.
+ for b in self.key_bindings.bindings:
+ bindings2.bindings.append(
+ Binding(
+ keys=b.keys,
+ handler=b.handler,
+ filter=self.filter & b.filter,
+ eager=b.eager,
+ is_global=b.is_global,
+ save_before=b.save_before,
+ record_in_macro=b.record_in_macro,
+ )
+ )
+
+ self._bindings2 = bindings2
+ self._last_version = expected_version
+
+
+class _MergedKeyBindings(_Proxy):
+ """
+ Merge multiple registries of key bindings into one.
+
+ This class acts as a proxy to multiple :class:`.KeyBindings` objects, but
+ behaves as if this is just one bigger :class:`.KeyBindings`.
+
+ :param registries: List of :class:`.KeyBindings` objects.
+ """
+
+ def __init__(self, registries: Sequence[KeyBindingsBase]) -> None:
+ _Proxy.__init__(self)
+ self.registries = registries
+
+ def _update_cache(self) -> None:
+ """
+ If one of the original registries was changed. Update our merged
+ version.
+ """
+ expected_version = tuple(r._version for r in self.registries)
+
+ if self._last_version != expected_version:
+ bindings2 = KeyBindings()
+
+ for reg in self.registries:
+ bindings2.bindings.extend(reg.bindings)
+
+ self._bindings2 = bindings2
+ self._last_version = expected_version
+
+
+def merge_key_bindings(bindings: Sequence[KeyBindingsBase]) -> _MergedKeyBindings:
+ """
+ Merge multiple :class:`.Keybinding` objects together.
+
+ Usage::
+
+ bindings = merge_key_bindings([bindings1, bindings2, ...])
+ """
+ return _MergedKeyBindings(bindings)
+
+
+class DynamicKeyBindings(_Proxy):
+ """
+ KeyBindings class that can dynamically returns any KeyBindings.
+
+ :param get_key_bindings: Callable that returns a :class:`.KeyBindings` instance.
+ """
+
+ def __init__(
+ self, get_key_bindings: Callable[[], Optional[KeyBindingsBase]]
+ ) -> None:
+ self.get_key_bindings = get_key_bindings
+ self.__version = 0
+ self._last_child_version = None
+ self._dummy = KeyBindings() # Empty key bindings.
+
+ def _update_cache(self) -> None:
+ key_bindings = self.get_key_bindings() or self._dummy
+ assert isinstance(key_bindings, KeyBindingsBase)
+ version = id(key_bindings), key_bindings._version
+
+ self._bindings2 = key_bindings
+ self._last_version = version
+
+
+class GlobalOnlyKeyBindings(_Proxy):
+ """
+ Wrapper around a :class:`.KeyBindings` object that only exposes the global
+ key bindings.
+ """
+
+ def __init__(self, key_bindings: KeyBindingsBase) -> None:
+ _Proxy.__init__(self)
+ self.key_bindings = key_bindings
+
+ def _update_cache(self) -> None:
+ """
+ If one of the original registries was changed. Update our merged
+ version.
+ """
+ expected_version = self.key_bindings._version
+
+ if self._last_version != expected_version:
+ bindings2 = KeyBindings()
+
+ for b in self.key_bindings.bindings:
+ if b.is_global():
+ bindings2.bindings.append(b)
+
+ self._bindings2 = bindings2
+ self._last_version = expected_version
diff --git a/src/prompt_toolkit/key_binding/key_processor.py b/src/prompt_toolkit/key_binding/key_processor.py
new file mode 100644
index 0000000..6fdd519
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/key_processor.py
@@ -0,0 +1,528 @@
+"""
+An :class:`~.KeyProcessor` receives callbacks for the keystrokes parsed from
+the input in the :class:`~prompt_toolkit.inputstream.InputStream` instance.
+
+The `KeyProcessor` will according to the implemented keybindings call the
+correct callbacks when new key presses are feed through `feed`.
+"""
+import weakref
+from asyncio import Task, sleep
+from collections import deque
+from typing import TYPE_CHECKING, Any, Deque, Generator, List, Optional, Union
+
+from prompt_toolkit.application.current import get_app
+from prompt_toolkit.enums import EditingMode
+from prompt_toolkit.filters.app import vi_navigation_mode
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.utils import Event
+
+from .key_bindings import Binding, KeyBindingsBase
+
+if TYPE_CHECKING:
+ from prompt_toolkit.application import Application
+ from prompt_toolkit.buffer import Buffer
+
+
+__all__ = [
+ "KeyProcessor",
+ "KeyPress",
+ "KeyPressEvent",
+]
+
+
+class KeyPress:
+ """
+ :param key: A `Keys` instance or text (one character).
+ :param data: The received string on stdin. (Often vt100 escape codes.)
+ """
+
+ def __init__(self, key: Union[Keys, str], data: Optional[str] = None) -> None:
+ assert isinstance(key, Keys) or len(key) == 1
+
+ if data is None:
+ if isinstance(key, Keys):
+ data = key.value
+ else:
+ data = key # 'key' is a one character string.
+
+ self.key = key
+ self.data = data
+
+ def __repr__(self) -> str:
+ return f"{self.__class__.__name__}(key={self.key!r}, data={self.data!r})"
+
+ def __eq__(self, other: object) -> bool:
+ if not isinstance(other, KeyPress):
+ return False
+ return self.key == other.key and self.data == other.data
+
+
+"""
+Helper object to indicate flush operation in the KeyProcessor.
+NOTE: the implementation is very similar to the VT100 parser.
+"""
+_Flush = KeyPress("?", data="_Flush")
+
+
+class KeyProcessor:
+ """
+ Statemachine that receives :class:`KeyPress` instances and according to the
+ key bindings in the given :class:`KeyBindings`, calls the matching handlers.
+
+ ::
+
+ p = KeyProcessor(key_bindings)
+
+ # Send keys into the processor.
+ p.feed(KeyPress(Keys.ControlX, '\x18'))
+ p.feed(KeyPress(Keys.ControlC, '\x03')
+
+ # Process all the keys in the queue.
+ p.process_keys()
+
+ # Now the ControlX-ControlC callback will be called if this sequence is
+ # registered in the key bindings.
+
+ :param key_bindings: `KeyBindingsBase` instance.
+ """
+
+ def __init__(self, key_bindings: KeyBindingsBase) -> None:
+ self._bindings = key_bindings
+
+ self.before_key_press = Event(self)
+ self.after_key_press = Event(self)
+
+ self._flush_wait_task: Optional[Task[None]] = None
+
+ self.reset()
+
+ def reset(self) -> None:
+ self._previous_key_sequence: List[KeyPress] = []
+ self._previous_handler: Optional[Binding] = None
+
+ # The queue of keys not yet send to our _process generator/state machine.
+ self.input_queue: Deque[KeyPress] = deque()
+
+ # The key buffer that is matched in the generator state machine.
+ # (This is at at most the amount of keys that make up for one key binding.)
+ self.key_buffer: List[KeyPress] = []
+
+ #: Readline argument (for repetition of commands.)
+ #: https://www.gnu.org/software/bash/manual/html_node/Readline-Arguments.html
+ self.arg: Optional[str] = None
+
+ # Start the processor coroutine.
+ self._process_coroutine = self._process()
+ self._process_coroutine.send(None) # type: ignore
+
+ def _get_matches(self, key_presses: List[KeyPress]) -> List[Binding]:
+ """
+ For a list of :class:`KeyPress` instances. Give the matching handlers
+ that would handle this.
+ """
+ keys = tuple(k.key for k in key_presses)
+
+ # Try match, with mode flag
+ return [b for b in self._bindings.get_bindings_for_keys(keys) if b.filter()]
+
+ def _is_prefix_of_longer_match(self, key_presses: List[KeyPress]) -> bool:
+ """
+ For a list of :class:`KeyPress` instances. Return True if there is any
+ handler that is bound to a suffix of this keys.
+ """
+ keys = tuple(k.key for k in key_presses)
+
+ # Get the filters for all the key bindings that have a longer match.
+ # Note that we transform it into a `set`, because we don't care about
+ # the actual bindings and executing it more than once doesn't make
+ # sense. (Many key bindings share the same filter.)
+ filters = {
+ b.filter for b in self._bindings.get_bindings_starting_with_keys(keys)
+ }
+
+ # When any key binding is active, return True.
+ return any(f() for f in filters)
+
+ def _process(self) -> Generator[None, KeyPress, None]:
+ """
+ Coroutine implementing the key match algorithm. Key strokes are sent
+ into this generator, and it calls the appropriate handlers.
+ """
+ buffer = self.key_buffer
+ retry = False
+
+ while True:
+ flush = False
+
+ if retry:
+ retry = False
+ else:
+ key = yield
+ if key is _Flush:
+ flush = True
+ else:
+ buffer.append(key)
+
+ # If we have some key presses, check for matches.
+ if buffer:
+ matches = self._get_matches(buffer)
+
+ if flush:
+ is_prefix_of_longer_match = False
+ else:
+ is_prefix_of_longer_match = self._is_prefix_of_longer_match(buffer)
+
+ # When eager matches were found, give priority to them and also
+ # ignore all the longer matches.
+ eager_matches = [m for m in matches if m.eager()]
+
+ if eager_matches:
+ matches = eager_matches
+ is_prefix_of_longer_match = False
+
+ # Exact matches found, call handler.
+ if not is_prefix_of_longer_match and matches:
+ self._call_handler(matches[-1], key_sequence=buffer[:])
+ del buffer[:] # Keep reference.
+
+ # No match found.
+ elif not is_prefix_of_longer_match and not matches:
+ retry = True
+ found = False
+
+ # Loop over the input, try longest match first and shift.
+ for i in range(len(buffer), 0, -1):
+ matches = self._get_matches(buffer[:i])
+ if matches:
+ self._call_handler(matches[-1], key_sequence=buffer[:i])
+ del buffer[:i]
+ found = True
+ break
+
+ if not found:
+ del buffer[:1]
+
+ def feed(self, key_press: KeyPress, first: bool = False) -> None:
+ """
+ Add a new :class:`KeyPress` to the input queue.
+ (Don't forget to call `process_keys` in order to process the queue.)
+
+ :param first: If true, insert before everything else.
+ """
+ if first:
+ self.input_queue.appendleft(key_press)
+ else:
+ self.input_queue.append(key_press)
+
+ def feed_multiple(self, key_presses: List[KeyPress], first: bool = False) -> None:
+ """
+ :param first: If true, insert before everything else.
+ """
+ if first:
+ self.input_queue.extendleft(reversed(key_presses))
+ else:
+ self.input_queue.extend(key_presses)
+
+ def process_keys(self) -> None:
+ """
+ Process all the keys in the `input_queue`.
+ (To be called after `feed`.)
+
+ Note: because of the `feed`/`process_keys` separation, it is
+ possible to call `feed` from inside a key binding.
+ This function keeps looping until the queue is empty.
+ """
+ app = get_app()
+
+ def not_empty() -> bool:
+ # When the application result is set, stop processing keys. (E.g.
+ # if ENTER was received, followed by a few additional key strokes,
+ # leave the other keys in the queue.)
+ if app.is_done:
+ # But if there are still CPRResponse keys in the queue, these
+ # need to be processed.
+ return any(k for k in self.input_queue if k.key == Keys.CPRResponse)
+ else:
+ return bool(self.input_queue)
+
+ def get_next() -> KeyPress:
+ if app.is_done:
+ # Only process CPR responses. Everything else is typeahead.
+ cpr = [k for k in self.input_queue if k.key == Keys.CPRResponse][0]
+ self.input_queue.remove(cpr)
+ return cpr
+ else:
+ return self.input_queue.popleft()
+
+ is_flush = False
+
+ while not_empty():
+ # Process next key.
+ key_press = get_next()
+
+ is_flush = key_press is _Flush
+ is_cpr = key_press.key == Keys.CPRResponse
+
+ if not is_flush and not is_cpr:
+ self.before_key_press.fire()
+
+ try:
+ self._process_coroutine.send(key_press)
+ except Exception:
+ # If for some reason something goes wrong in the parser, (maybe
+ # an exception was raised) restart the processor for next time.
+ self.reset()
+ self.empty_queue()
+ raise
+
+ if not is_flush and not is_cpr:
+ self.after_key_press.fire()
+
+ # Skip timeout if the last key was flush.
+ if not is_flush:
+ self._start_timeout()
+
+ def empty_queue(self) -> List[KeyPress]:
+ """
+ Empty the input queue. Return the unprocessed input.
+ """
+ key_presses = list(self.input_queue)
+ self.input_queue.clear()
+
+ # Filter out CPRs. We don't want to return these.
+ key_presses = [k for k in key_presses if k.key != Keys.CPRResponse]
+ return key_presses
+
+ def _call_handler(self, handler: Binding, key_sequence: List[KeyPress]) -> None:
+ app = get_app()
+ was_recording_emacs = app.emacs_state.is_recording
+ was_recording_vi = bool(app.vi_state.recording_register)
+ was_temporary_navigation_mode = app.vi_state.temporary_navigation_mode
+ arg = self.arg
+ self.arg = None
+
+ event = KeyPressEvent(
+ weakref.ref(self),
+ arg=arg,
+ key_sequence=key_sequence,
+ previous_key_sequence=self._previous_key_sequence,
+ is_repeat=(handler == self._previous_handler),
+ )
+
+ # Save the state of the current buffer.
+ if handler.save_before(event):
+ event.app.current_buffer.save_to_undo_stack()
+
+ # Call handler.
+ from prompt_toolkit.buffer import EditReadOnlyBuffer
+
+ try:
+ handler.call(event)
+ self._fix_vi_cursor_position(event)
+
+ except EditReadOnlyBuffer:
+ # When a key binding does an attempt to change a buffer which is
+ # read-only, we can ignore that. We sound a bell and go on.
+ app.output.bell()
+
+ if was_temporary_navigation_mode:
+ self._leave_vi_temp_navigation_mode(event)
+
+ self._previous_key_sequence = key_sequence
+ self._previous_handler = handler
+
+ # Record the key sequence in our macro. (Only if we're in macro mode
+ # before and after executing the key.)
+ if handler.record_in_macro():
+ if app.emacs_state.is_recording and was_recording_emacs:
+ recording = app.emacs_state.current_recording
+ if recording is not None: # Should always be true, given that
+ # `was_recording_emacs` is set.
+ recording.extend(key_sequence)
+
+ if app.vi_state.recording_register and was_recording_vi:
+ for k in key_sequence:
+ app.vi_state.current_recording += k.data
+
+ def _fix_vi_cursor_position(self, event: "KeyPressEvent") -> None:
+ """
+ After every command, make sure that if we are in Vi navigation mode, we
+ never put the cursor after the last character of a line. (Unless it's
+ an empty line.)
+ """
+ app = event.app
+ buff = app.current_buffer
+ preferred_column = buff.preferred_column
+
+ if (
+ vi_navigation_mode()
+ and buff.document.is_cursor_at_the_end_of_line
+ and len(buff.document.current_line) > 0
+ ):
+ buff.cursor_position -= 1
+
+ # Set the preferred_column for arrow up/down again.
+ # (This was cleared after changing the cursor position.)
+ buff.preferred_column = preferred_column
+
+ def _leave_vi_temp_navigation_mode(self, event: "KeyPressEvent") -> None:
+ """
+ If we're in Vi temporary navigation (normal) mode, return to
+ insert/replace mode after executing one action.
+ """
+ app = event.app
+
+ if app.editing_mode == EditingMode.VI:
+ # Not waiting for a text object and no argument has been given.
+ if app.vi_state.operator_func is None and self.arg is None:
+ app.vi_state.temporary_navigation_mode = False
+
+ def _start_timeout(self) -> None:
+ """
+ Start auto flush timeout. Similar to Vim's `timeoutlen` option.
+
+ Start a background coroutine with a timer. When this timeout expires
+ and no key was pressed in the meantime, we flush all data in the queue
+ and call the appropriate key binding handlers.
+ """
+ app = get_app()
+ timeout = app.timeoutlen
+
+ if timeout is None:
+ return
+
+ async def wait() -> None:
+ "Wait for timeout."
+ # This sleep can be cancelled. In that case we don't flush.
+ await sleep(timeout)
+
+ if len(self.key_buffer) > 0:
+ # (No keys pressed in the meantime.)
+ flush_keys()
+
+ def flush_keys() -> None:
+ "Flush keys."
+ self.feed(_Flush)
+ self.process_keys()
+
+ # Automatically flush keys.
+ if self._flush_wait_task:
+ self._flush_wait_task.cancel()
+ self._flush_wait_task = app.create_background_task(wait())
+
+ def send_sigint(self) -> None:
+ """
+ Send SIGINT. Immediately call the SIGINT key handler.
+ """
+ self.feed(KeyPress(key=Keys.SIGINT), first=True)
+ self.process_keys()
+
+
+class KeyPressEvent:
+ """
+ Key press event, delivered to key bindings.
+
+ :param key_processor_ref: Weak reference to the `KeyProcessor`.
+ :param arg: Repetition argument.
+ :param key_sequence: List of `KeyPress` instances.
+ :param previouskey_sequence: Previous list of `KeyPress` instances.
+ :param is_repeat: True when the previous event was delivered to the same handler.
+ """
+
+ def __init__(
+ self,
+ key_processor_ref: "weakref.ReferenceType[KeyProcessor]",
+ arg: Optional[str],
+ key_sequence: List[KeyPress],
+ previous_key_sequence: List[KeyPress],
+ is_repeat: bool,
+ ) -> None:
+
+ self._key_processor_ref = key_processor_ref
+ self.key_sequence = key_sequence
+ self.previous_key_sequence = previous_key_sequence
+
+ #: True when the previous key sequence was handled by the same handler.
+ self.is_repeat = is_repeat
+
+ self._arg = arg
+ self._app = get_app()
+
+ def __repr__(self) -> str:
+ return "KeyPressEvent(arg={!r}, key_sequence={!r}, is_repeat={!r})".format(
+ self.arg,
+ self.key_sequence,
+ self.is_repeat,
+ )
+
+ @property
+ def data(self) -> str:
+ return self.key_sequence[-1].data
+
+ @property
+ def key_processor(self) -> KeyProcessor:
+ processor = self._key_processor_ref()
+ if processor is None:
+ raise Exception("KeyProcessor was lost. This should not happen.")
+ return processor
+
+ @property
+ def app(self) -> "Application[Any]":
+ """
+ The current `Application` object.
+ """
+ return self._app
+
+ @property
+ def current_buffer(self) -> "Buffer":
+ """
+ The current buffer.
+ """
+ return self.app.current_buffer
+
+ @property
+ def arg(self) -> int:
+ """
+ Repetition argument.
+ """
+ if self._arg == "-":
+ return -1
+
+ result = int(self._arg or 1)
+
+ # Don't exceed a million.
+ if int(result) >= 1000000:
+ result = 1
+
+ return result
+
+ @property
+ def arg_present(self) -> bool:
+ """
+ True if repetition argument was explicitly provided.
+ """
+ return self._arg is not None
+
+ def append_to_arg_count(self, data: str) -> None:
+ """
+ Add digit to the input argument.
+
+ :param data: the typed digit as string
+ """
+ assert data in "-0123456789"
+ current = self._arg
+
+ if data == "-":
+ assert current is None or current == "-"
+ result = data
+ elif current is None:
+ result = data
+ else:
+ result = f"{current}{data}"
+
+ self.key_processor.arg = result
+
+ @property
+ def cli(self) -> "Application[Any]":
+ "For backward-compatibility."
+ return self.app
diff --git a/src/prompt_toolkit/key_binding/vi_state.py b/src/prompt_toolkit/key_binding/vi_state.py
new file mode 100644
index 0000000..10593a8
--- /dev/null
+++ b/src/prompt_toolkit/key_binding/vi_state.py
@@ -0,0 +1,107 @@
+from enum import Enum
+from typing import TYPE_CHECKING, Callable, Dict, Optional
+
+from prompt_toolkit.clipboard import ClipboardData
+
+if TYPE_CHECKING:
+ from .key_bindings.vi import TextObject
+ from .key_processor import KeyPressEvent
+
+__all__ = [
+ "InputMode",
+ "CharacterFind",
+ "ViState",
+]
+
+
+class InputMode(str, Enum):
+ value: str
+
+ INSERT = "vi-insert"
+ INSERT_MULTIPLE = "vi-insert-multiple"
+ NAVIGATION = "vi-navigation" # Normal mode.
+ REPLACE = "vi-replace"
+ REPLACE_SINGLE = "vi-replace-single"
+
+
+class CharacterFind:
+ def __init__(self, character: str, backwards: bool = False) -> None:
+ self.character = character
+ self.backwards = backwards
+
+
+class ViState:
+ """
+ Mutable class to hold the state of the Vi navigation.
+ """
+
+ def __init__(self) -> None:
+ #: None or CharacterFind instance. (This is used to repeat the last
+ #: search in Vi mode, by pressing the 'n' or 'N' in navigation mode.)
+ self.last_character_find: Optional[CharacterFind] = None
+
+ # When an operator is given and we are waiting for text object,
+ # -- e.g. in the case of 'dw', after the 'd' --, an operator callback
+ # is set here.
+ self.operator_func: Optional[
+ Callable[["KeyPressEvent", "TextObject"], None]
+ ] = None
+ self.operator_arg: Optional[int] = None
+
+ #: Named registers. Maps register name (e.g. 'a') to
+ #: :class:`ClipboardData` instances.
+ self.named_registers: Dict[str, ClipboardData] = {}
+
+ #: The Vi mode we're currently in to.
+ self.__input_mode = InputMode.INSERT
+
+ #: Waiting for digraph.
+ self.waiting_for_digraph = False
+ self.digraph_symbol1: Optional[str] = None # (None or a symbol.)
+
+ #: When true, make ~ act as an operator.
+ self.tilde_operator = False
+
+ #: Register in which we are recording a macro.
+ #: `None` when not recording anything.
+ # Note that the recording is only stored in the register after the
+ # recording is stopped. So we record in a separate `current_recording`
+ # variable.
+ self.recording_register: Optional[str] = None
+ self.current_recording: str = ""
+
+ # Temporary navigation (normal) mode.
+ # This happens when control-o has been pressed in insert or replace
+ # mode. The user can now do one navigation action and we'll return back
+ # to insert/replace.
+ self.temporary_navigation_mode = False
+
+ @property
+ def input_mode(self) -> InputMode:
+ "Get `InputMode`."
+ return self.__input_mode
+
+ @input_mode.setter
+ def input_mode(self, value: InputMode) -> None:
+ "Set `InputMode`."
+ if value == InputMode.NAVIGATION:
+ self.waiting_for_digraph = False
+ self.operator_func = None
+ self.operator_arg = None
+
+ self.__input_mode = value
+
+ def reset(self) -> None:
+ """
+ Reset state, go back to the given mode. INSERT by default.
+ """
+ # Go back to insert mode.
+ self.input_mode = InputMode.INSERT
+
+ self.waiting_for_digraph = False
+ self.operator_func = None
+ self.operator_arg = None
+
+ # Reset recording state.
+ self.recording_register = None
+ self.current_recording = ""