def load_emacs_system_bindings(registry, filter=None):
handle = create_handle_decorator(registry, filter & EmacsMode())
has_focus = HasFocus(SYSTEM_BUFFER)
@handle(Keys.Escape, '!', filter=~has_focus)
def _(event):
"""
M-'!' opens the system prompt.
"""
event.cli.push_focus(SYSTEM_BUFFER)
@handle(Keys.Escape, filter=has_focus)
@handle(Keys.ControlG, filter=has_focus)
@handle(Keys.ControlC, filter=has_focus)
def _(event):
"""
Cancel system prompt.
"""
event.cli.buffers[SYSTEM_BUFFER].reset()
event.cli.pop_focus()
@handle(Keys.ControlJ, filter=has_focus)
def _(event):
"""
Run system command.
"""
system_line = event.cli.buffers[SYSTEM_BUFFER]
event.cli.run_system_command(system_line.text)
system_line.reset(append_to_history=True)
# Focus previous buffer again.
event.cli.pop_focus()
def load_emacs_open_in_editor_bindings():
"""
Pressing C-X C-E will open the buffer in an external editor.
"""
registry = Registry()
registry.add_binding(Keys.ControlX, Keys.ControlE,
filter=EmacsMode() & ~HasSelection())(
get_by_name('edit-and-execute-command'))
return registry
def load_extra_emacs_page_navigation_bindings(registry, filter=None):
"""
Key bindings, for scrolling up and down through pages.
This are separate bindings, because GNU readline doesn't have them.
"""
filter = to_cli_filter(filter)
handle = create_handle_decorator(registry, filter & EmacsMode())
handle(Keys.ControlV)(scroll_page_down)
handle(Keys.PageDown)(scroll_page_down)
handle(Keys.Escape, 'v')(scroll_page_up)
handle(Keys.PageUp)(scroll_page_up)
def load_emacs_open_in_editor_bindings(registry, filter=None):
"""
Pressing C-X C-E will open the buffer in an external editor.
"""
handle = create_handle_decorator(registry, filter & EmacsMode())
has_selection = HasSelection()
@handle(Keys.ControlX, Keys.ControlE, filter=~has_selection)
def _(event):
"""
Open editor.
"""
event.current_buffer.open_in_editor(event.cli)
def load_extra_emacs_page_navigation_bindings():
"""
Key bindings, for scrolling up and down through pages.
This are separate bindings, because GNU readline doesn't have them.
"""
registry = ConditionalRegistry(Registry(), EmacsMode())
handle = registry.add_binding
handle(Keys.ControlV)(scroll_page_down)
handle(Keys.PageDown)(scroll_page_down)
handle(Keys.Escape, 'v')(scroll_page_up)
handle(Keys.PageUp)(scroll_page_up)
return registry
def load_emacs_system_bindings():
registry = ConditionalRegistry(Registry(), EmacsMode())
handle = registry.add_binding
has_focus = HasFocus(SYSTEM_BUFFER)
@handle(Keys.Escape, '!', filter=~has_focus)
def _(event):
"""
M-'!' opens the system prompt.
"""
event.cli.push_focus(SYSTEM_BUFFER)
@handle(Keys.Escape, filter=has_focus)
@handle(Keys.ControlG, filter=has_focus)
@handle(Keys.ControlC, filter=has_focus)
def _(event):
"""
Cancel system prompt.
"""
event.cli.buffers[SYSTEM_BUFFER].reset()
event.cli.pop_focus()
@handle(Keys.ControlJ, filter=has_focus)
def _(event):
"""
Run system command.
"""
system_line = event.cli.buffers[SYSTEM_BUFFER]
event.cli.run_system_command(system_line.text)
system_line.reset(append_to_history=True)
# Focus previous buffer again.
event.cli.pop_focus()
return registry
def load_emacs_search_bindings(registry, get_search_state=None, filter=None):
filter = to_cli_filter(filter)
handle = create_handle_decorator(registry, filter & EmacsMode())
has_focus = HasFocus(SEARCH_BUFFER)
assert get_search_state is None or callable(get_search_state)
if not get_search_state:
def get_search_state(cli):
return cli.search_state
@handle(Keys.ControlG, filter=has_focus)
@handle(Keys.ControlC, filter=has_focus)
# NOTE: the reason for not also binding Escape to this one, is that we want
# Alt+Enter to accept input directly in incremental search mode.
def _(event):
"""
Abort an incremental search and restore the original line.
"""
search_buffer = event.cli.buffers[SEARCH_BUFFER]
search_buffer.reset()
event.cli.pop_focus()
@handle(Keys.ControlJ, filter=has_focus)
def _(event):
"""
When enter pressed in isearch, quit isearch mode. (Multiline
isearch would be too complicated.)
"""
input_buffer = event.cli.buffers.previous(event.cli)
search_buffer = event.cli.buffers[SEARCH_BUFFER]
# Update search state.
if search_buffer.text:
get_search_state(event.cli).text = search_buffer.text
# Apply search.
input_buffer.apply_search(get_search_state(event.cli),
include_current_position=True)
# Add query to history of search line.
search_buffer.append_to_history()
search_buffer.reset()
# Focus previous document again.
event.cli.pop_focus()
@handle(Keys.ControlR, filter=~has_focus)
def _(event):
get_search_state(
event.cli).direction = IncrementalSearchDirection.BACKWARD
event.cli.push_focus(SEARCH_BUFFER)
@handle(Keys.ControlS, filter=~has_focus)
def _(event):
get_search_state(
event.cli).direction = IncrementalSearchDirection.FORWARD
event.cli.push_focus(SEARCH_BUFFER)
def incremental_search(cli, direction, count=1):
" Apply search, but keep search buffer focussed. "
# Update search_state.
search_state = get_search_state(cli)
direction_changed = search_state.direction != direction
search_state.text = cli.buffers[SEARCH_BUFFER].text
search_state.direction = direction
# Apply search to current buffer.
if not direction_changed:
input_buffer = cli.buffers.previous(cli)
input_buffer.apply_search(search_state,
include_current_position=False,
count=count)
@handle(Keys.ControlR, filter=has_focus)
@handle(Keys.Up, filter=has_focus)
def _(event):
incremental_search(event.cli,
IncrementalSearchDirection.BACKWARD,
count=event.arg)
@handle(Keys.ControlS, filter=has_focus)
@handle(Keys.Down, filter=has_focus)
def _(event):
incremental_search(event.cli,
IncrementalSearchDirection.FORWARD,
count=event.arg)
def load_emacs_bindings(registry, filter=Always()):
"""
Some e-macs extensions.
"""
# Overview of Readline emacs commands:
# http://www.catonmat.net/download/readline-emacs-editing-mode-cheat-sheet.pdf
filter = to_cli_filter(filter)
handle = create_handle_decorator(registry, filter & EmacsMode())
insert_mode = EmacsInsertMode()
has_selection = HasSelection()
@handle(Keys.Escape)
def _(event):
"""
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(Keys.ControlA)(get_by_name('beginning-of-line'))
handle(Keys.ControlB)(get_by_name('backward-char'))
handle(Keys.ControlDelete, filter=insert_mode)(get_by_name('kill-word'))
handle(Keys.ControlE)(get_by_name('end-of-line'))
handle(Keys.ControlF)(get_by_name('forward-char'))
handle(Keys.ControlLeft)(get_by_name('backward-word'))
handle(Keys.ControlRight)(get_by_name('forward-word'))
handle(Keys.ControlX, 'r', 'y', filter=insert_mode)(get_by_name('yank'))
handle(Keys.ControlY, filter=insert_mode)(get_by_name('yank'))
handle(Keys.Escape, 'b')(get_by_name('backward-word'))
handle(Keys.Escape, 'c',
filter=insert_mode)(get_by_name('capitalize-word'))
handle(Keys.Escape, 'd', filter=insert_mode)(get_by_name('kill-word'))
handle(Keys.Escape, 'f')(get_by_name('forward-word'))
handle(Keys.Escape, 'l', filter=insert_mode)(get_by_name('downcase-word'))
handle(Keys.Escape, 'u', filter=insert_mode)(get_by_name('uppercase-word'))
handle(Keys.Escape, Keys.ControlH,
filter=insert_mode)(get_by_name('unix-word-rubout'))
handle(Keys.Escape, Keys.Backspace,
filter=insert_mode)(get_by_name('unix-word-rubout'))
handle(Keys.Escape, '\\',
filter=insert_mode)(get_by_name('delete-horizontal-space'))
handle(Keys.ControlUnderscore,
save_before=(lambda e: False),
filter=insert_mode)(get_by_name('undo'))
handle(Keys.ControlX,
Keys.ControlU,
save_before=(lambda e: False),
filter=insert_mode)(get_by_name('undo'))
handle(Keys.Escape, '<',
filter=~has_selection)(get_by_name('beginning-of-history'))
handle(Keys.Escape, '>',
filter=~has_selection)(get_by_name('end-of-history'))
@handle(Keys.ControlN)
def _(event):
" Next line. "
event.current_buffer.auto_down()
@handle(Keys.ControlO, filter=insert_mode)
def _(event):
" Insert newline, but don't move the cursor. "
event.current_buffer.insert_text('\n', move_cursor=False)
@handle(Keys.ControlP)
def _(event):
" Previous line. "
event.current_buffer.auto_up(count=event.arg)
@handle(Keys.ControlQ, Keys.Any, filter=~has_selection)
def _(event):
"""
Quoted insert.
For vt100 terminals, you have to disable flow control by running
``stty -ixon``, otherwise Ctrl-Q and Ctrl-S are captured by the
terminal.
"""
event.current_buffer.insert_text(event.data, overwrite=False)
def handle_digit(c):
"""
Handle input of arguments.
The first number needs to be preceeded by escape.
"""
@handle(c, filter=HasArg())
@handle(Keys.Escape, c)
def _(event):
event.append_to_arg_count(c)
for c in '0123456789':
handle_digit(c)
@handle(Keys.Escape, '-', filter=~HasArg())
def _(event):
"""
"""
if event._arg is None:
event.append_to_arg_count('-')
@handle('-', filter=Condition(lambda cli: cli.input_processor.arg == '-'))
def _(event):
"""
When '-' is typed again, after exactly '-' has been given as an
argument, ignore this.
"""
event.cli.input_processor.arg = '-'
is_returnable = Condition(
lambda cli: cli.current_buffer.accept_action.is_returnable)
# Meta + Newline: always accept input.
handle(Keys.Escape, Keys.ControlJ,
filter=insert_mode & is_returnable)(get_by_name('accept-line'))
def character_search(buff, char, count):
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(Keys.ControlSquareClose, Keys.Any)
def _(event):
" When Ctl-] + a character is pressed. go to that character. "
character_search(event.current_buffer, event.data, event.arg)
@handle(Keys.Escape, Keys.ControlSquareClose, Keys.Any)
def _(event):
" Like Ctl-], but backwards. "
character_search(event.current_buffer, event.data, -event.arg)
@handle(Keys.Escape, 'a')
def _(event):
" Previous sentence. "
# TODO:
@handle(Keys.Escape, 'e')
def _(event):
" Move to end of sentence. "
# TODO:
@handle(Keys.Escape, 't', filter=insert_mode)
def _(event):
"""
Swap the last two words before the cursor.
"""
# TODO
@handle(Keys.Escape, '.', filter=insert_mode)
def _(event):
"""
Rotate through the last word (white-space delimited) of the previous lines in history.
"""
# TODO
@handle(Keys.Escape, '*', filter=insert_mode)
def _(event):
"""
`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(Keys.ControlX, Keys.ControlX)
def _(event):
"""
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(Keys.ControlSpace)
def _(event):
"""
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(Keys.ControlG, filter=~has_selection)
def _(event):
"""
Control + G: Cancel completion menu and validation state.
"""
event.current_buffer.complete_state = None
event.current_buffer.validation_error = None
@handle(Keys.ControlG, filter=has_selection)
def _(event):
"""
Cancel selection.
"""
event.current_buffer.exit_selection()
@handle(Keys.ControlW, filter=has_selection)
@handle(Keys.ControlX, 'r', 'k', filter=has_selection)
def _(event):
"""
Cut selected text.
"""
data = event.current_buffer.cut_selection()
event.cli.clipboard.set_data(data)
@handle(Keys.Escape, 'w', filter=has_selection)
def _(event):
"""
Copy selected text.
"""
data = event.current_buffer.copy_selection()
event.cli.clipboard.set_data(data)
@handle(Keys.Escape, Keys.Left)
def _(event):
"""
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(Keys.Escape, Keys.Right)
def _(event):
"""
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(Keys.Escape, '/', filter=insert_mode)
def _(event):
"""
M-/: Complete.
"""
b = event.current_buffer
if b.complete_state:
b.complete_next()
else:
event.cli.start_completion(select_first=True)
@handle(Keys.ControlC, '>', filter=has_selection)
def _(event):
"""
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(Keys.ControlC, '<', filter=has_selection)
def _(event):
"""
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)
def load_emacs_bindings(registry, filter=Always()):
"""
Some e-macs extensions.
"""
# Overview of Readline emacs commands:
# http://www.catonmat.net/download/readline-emacs-editing-mode-cheat-sheet.pdf
filter = to_cli_filter(filter)
handle = create_handle_decorator(registry, filter & EmacsMode())
insert_mode = EmacsInsertMode()
has_selection = HasSelection()
@handle(Keys.Escape)
def _(event):
"""
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(Keys.ControlA)
def _(event):
"""
Start of line.
"""
buffer = event.current_buffer
buffer.cursor_position += buffer.document.get_start_of_line_position(
after_whitespace=False)
@handle(Keys.ControlB)
def _(event):
"""
Character back.
"""
buffer = event.current_buffer
buffer.cursor_position += buffer.document.get_cursor_left_position(
count=event.arg)
@handle(Keys.ControlE)
def _(event):
"""
End of line.
"""
buffer = event.current_buffer
buffer.cursor_position += buffer.document.get_end_of_line_position()
@handle(Keys.ControlF)
def _(event):
"""
Character forward.
"""
buffer = event.current_buffer
buffer.cursor_position += buffer.document.get_cursor_right_position(
count=event.arg)
@handle(Keys.ControlN, filter=~has_selection)
def _(event):
"""
Next line.
"""
event.current_buffer.auto_down()
@handle(Keys.ControlN, filter=has_selection)
def _(event):
"""
Next line.
"""
event.current_buffer.cursor_down()
@handle(Keys.ControlO, filter=insert_mode)
def _(event):
"""
Insert newline, but don't move the cursor.
"""
event.current_buffer.insert_text('\n', move_cursor=False)
@handle(Keys.ControlP, filter=~has_selection)
def _(event):
"""
Previous line.
"""
event.current_buffer.auto_up(count=event.arg)
@handle(Keys.ControlP, filter=has_selection)
def _(event):
"""
Previous line.
"""
event.current_buffer.cursor_up(count=event.arg)
@handle(Keys.ControlQ, Keys.Any, filter=~has_selection)
def _(event):
"""
Quoted insert.
For vt100 terminals, you have to disable flow control by running
``stty -ixon``, otherwise Ctrl-Q and Ctrl-S are captured by the
terminal.
"""
event.current_buffer.insert_text(event.data, overwrite=False)
@handle(Keys.ControlY, filter=insert_mode)
@handle(Keys.ControlX, 'r', 'y', filter=insert_mode)
def _(event):
"""
Paste before cursor.
"""
event.current_buffer.paste_clipboard_data(
event.cli.clipboard.get_data(), count=event.arg, before=True)
@handle(Keys.ControlUnderscore,
save_before=(lambda e: False),
filter=insert_mode)
def _(event):
"""
Undo.
"""
event.current_buffer.undo()
def handle_digit(c):
"""
Handle Alt + digit in the `meta_digit` method.
"""
@handle(Keys.Escape, c)
def _(event):
event.append_to_arg_count(c)
for c in '0123456789':
handle_digit(c)
@handle(Keys.Escape, '-')
def _(event):
"""
"""
if event._arg is None:
event.append_to_arg_count('-')
is_returnable = Condition(
lambda cli: cli.current_buffer.accept_action.is_returnable)
@handle(Keys.Escape, Keys.ControlJ, filter=insert_mode & is_returnable)
def _(event):
"""
Meta + Newline: always accept input.
"""
b = event.current_buffer
b.accept_action.validate_and_handle(event.cli, b)
@handle(Keys.ControlSquareClose, Keys.Any)
def _(event):
"""
When Ctl-] + a character is pressed. go to that character.
"""
match = event.current_buffer.document.find(event.data,
in_current_line=True,
count=(event.arg))
if match is not None:
event.current_buffer.cursor_position += match
@handle(Keys.Escape, Keys.Backspace, filter=insert_mode)
def _(event):
"""
Delete word backwards.
"""
buffer = event.current_buffer
pos = buffer.document.find_start_of_previous_word(count=event.arg)
if pos is None:
# Nothing found. Only whitespace before the cursor?
pos = -buffer.cursor_position
if pos:
deleted = buffer.delete_before_cursor(count=-pos)
event.cli.clipboard.set_text(deleted)
@handle(Keys.ControlDelete, filter=insert_mode)
def _(event):
"""
Delete word after cursor.
"""
buff = event.current_buffer
pos = buff.document.find_next_word_ending(count=event.arg)
if pos:
deleted = buff.delete(count=pos)
event.cli.clipboard.set_text(deleted)
@handle(Keys.Escape, 'a')
def _(event):
"""
Previous sentence.
"""
# TODO:
pass
@handle(Keys.Escape, 'c', filter=insert_mode)
def _(event):
"""
Capitalize the current (or following) word.
"""
buffer = event.current_buffer
for i in range(event.arg):
pos = buffer.document.find_next_word_ending()
words = buffer.document.text_after_cursor[:pos]
buffer.insert_text(words.title(), overwrite=True)
@handle(Keys.Escape, 'd', filter=insert_mode)
def _(event):
"""
Delete word forwards.
"""
buffer = event.current_buffer
pos = buffer.document.find_next_word_ending(count=event.arg)
if pos:
deleted = buffer.delete(count=pos)
event.cli.clipboard.set_text(deleted)
@handle(Keys.Escape, 'e')
def _(event):
""" Move to end of sentence. """
# TODO:
pass
@handle(Keys.Escape, 'f')
@handle(Keys.ControlRight)
def _(event):
"""
Cursor to end of next word.
"""
buffer = event.current_buffer
pos = buffer.document.find_next_word_ending(count=event.arg)
if pos:
buffer.cursor_position += pos
@handle(Keys.Escape, 'b')
@handle(Keys.ControlLeft)
def _(event):
"""
Cursor to start of previous word.
"""
buffer = event.current_buffer
pos = buffer.document.find_previous_word_beginning(count=event.arg)
if pos:
buffer.cursor_position += pos
@handle(Keys.Escape, 'l', filter=insert_mode)
def _(event):
"""
Lowercase the current (or following) word.
"""
buffer = event.current_buffer
for i in range(event.arg): # XXX: not DRY: see meta_c and meta_u!!
pos = buffer.document.find_next_word_ending()
words = buffer.document.text_after_cursor[:pos]
buffer.insert_text(words.lower(), overwrite=True)
@handle(Keys.Escape, 't', filter=insert_mode)
def _(event):
"""
Swap the last two words before the cursor.
"""
# TODO
@handle(Keys.Escape, 'u', filter=insert_mode)
def _(event):
"""
Uppercase the current (or following) word.
"""
buffer = event.current_buffer
for i in range(event.arg):
pos = buffer.document.find_next_word_ending()
words = buffer.document.text_after_cursor[:pos]
buffer.insert_text(words.upper(), overwrite=True)
@handle(Keys.Escape, '.', filter=insert_mode)
def _(event):
"""
Rotate through the last word (white-space delimited) of the previous lines in history.
"""
# TODO
@handle(Keys.Escape, '\\', filter=insert_mode)
def _(event):
"""
Delete all spaces and tabs around point.
(delete-horizontal-space)
"""
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)
@handle(Keys.Escape, '*', filter=insert_mode)
def _(event):
"""
`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(Keys.ControlX,
Keys.ControlU,
save_before=(lambda e: False),
filter=insert_mode)
def _(event):
event.current_buffer.undo()
@handle(Keys.ControlX, Keys.ControlX)
def _(event):
"""
Move cursor back and forth between the start and end of the current
line.
"""
buffer = event.current_buffer
if buffer.document.current_char == '\n':
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(Keys.ControlSpace)
def _(event):
"""
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(Keys.ControlG, filter=~has_selection)
def _(event):
"""
Control + G: Cancel completion menu and validation state.
"""
event.current_buffer.complete_state = None
event.current_buffer.validation_error = None
@handle(Keys.ControlG, filter=has_selection)
def _(event):
"""
Cancel selection.
"""
event.current_buffer.exit_selection()
@handle(Keys.ControlW, filter=has_selection)
@handle(Keys.ControlX, 'r', 'k', filter=has_selection)
def _(event):
"""
Cut selected text.
"""
data = event.current_buffer.cut_selection()
event.cli.clipboard.set_data(data)
@handle(Keys.Escape, 'w', filter=has_selection)
def _(event):
"""
Copy selected text.
"""
data = event.current_buffer.copy_selection()
event.cli.clipboard.set_data(data)
@handle(Keys.Escape, '<', filter=~has_selection)
def _(event):
"""
Move to the first line in the history.
"""
event.current_buffer.go_to_history(0)
@handle(Keys.Escape, '>', filter=~has_selection)
def _(event):
"""
Move to the end of the input history.
This is the line we are editing.
"""
buffer = event.current_buffer
buffer.go_to_history(len(buffer._working_lines) - 1)
@handle(Keys.Escape, Keys.Left)
def _(event):
"""
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(Keys.Escape, Keys.Right)
def _(event):
"""
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(Keys.Escape, '/', filter=insert_mode)
def _(event):
"""
M-/: Complete.
"""
b = event.current_buffer
if b.complete_state:
b.complete_next()
else:
event.cli.start_completion(select_first=True)
@handle(Keys.ControlC, '>', filter=has_selection)
def _(event):
"""
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(Keys.ControlC, '<', filter=has_selection)
def _(event):
"""
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)
