def test_history_search_backward (self):
q = LineHistory()
for x in [u"aaaa",u"aaba",u"aaca",u" aacax",u"akca",u"bbb",u"ako"]:
q.add_history(RL(x))
a=RL(u"aa",point=2)
for x in [u"aaca",u"aaba",u"aaaa",u"aaaa"]:
res=q.history_search_backward(a)
assert res.get_line_text()==x
def test_history_search_backward (self):
history._ignore_leading_spaces=False
q=LineHistory()
for x in ["aaaa","aaba","aaca"," aacax","akca","bbb","ako"]:
q.add_history(RL(x))
a=RL("aa",point=2)
for x in ["aaca","aaba","aaaa","aaaa"]:
res=q.history_search_backward(a)
assert res.get_line_text()==x
def test_history_search_backward(self):
history._ignore_leading_spaces = False
q = LineHistory()
for x in ["aaaa", "aaba", "aaca", " aacax", "akca", "bbb", "ako"]:
q.add_history(RL(x))
a = RL("aa", point=2)
for x in ["aaca", "aaba", "aaaa", "aaaa"]:
res = q.history_search_backward(a)
assert res.get_line_text() == x
def test_history_search_backward(self):
q = LineHistory()
for x in [
u"aaaa", u"aaba", u"aaca", u" aacax", u"akca", u"bbb",
u"ako"
]:
q.add_history(RL(x))
a = RL(u"aa", point=2)
for x in [u"aaca", u"aaba", u"aaaa", u"aaaa"]:
res = q.history_search_backward(a)
assert res.get_line_text() == x
class TestLineHistoryDunderMethods(unittest.TestCase):
def setUp(self):
self.buf = LineHistory()
def test_index(self):
# Does get_history_item say, index starts at 1?
# FFS this passed
with self.assertRaises(IndexError):
self.buf.get_history_item(0)
def test_adding_only_a_string_to_the_history(self):
# like we jump through some acrobatic hoops for seemingly no reason
self.buf.add_history("a simple str")
self.assertEqual(self.buf.get_history_item(0), "a simple str")
def test_history_search_forward(self):
q = LineHistory()
for x in ["aaaa", "aaba", "aaca", " aacax", "akca", "bbb", "ako"]:
q.add_history(RL(x))
q.beginning_of_history()
a = RL("aa", point=2)
for x in ["aaba", "aaca", "aaca"]:
res = q.history_search_forward(a)
assert res.get_line_text() == x
def test_history_search_forward (self):
q = LineHistory()
for x in ["aaaa","aaba","aaca"," aacax","akca","bbb","ako"]:
q.add_history(RL(x))
q.beginning_of_history()
a=RL("aa",point=2)
for x in ["aaba","aaca","aaca"]:
res=q.history_search_forward(a)
assert res.get_line_text()==x
def setUp(self):
self.q = q = LineHistory()
for x in ["aaaa", "aaba", "aaca", "akca", "bbb", "ako"]:
q.add_history(RL(x))
def setUp(self):
self.q = q = LineHistory()
def init_test2(self):
self.q = q = LineHistory()
for x in [u"aaaa", u"aaba", u"aaca", u"akca", u"bbb", u"ako"]:
q.add_history(RL(x))
def init_test(self):
history._ignore_leading_spaces = False
self.q = q = LineHistory()
for x in [u"aaaa", u"aaba", u"aaca", u"akca", u"bbb", u"ako"]:
q.add_history(RL(x))
class EmacsMode(DigitArgumentMode):
mode = "emacs"
def __init__(
self,
rlobj,
previous_func=None,
prompt=">>> ",
_insert_verbatim=False,
next_meta=False,
_history_cursor=0,
_history_length=100,
history=None,
# history_filename=None,
debug=False,
*args,
**kwargs):
self._keylog = lambda x, y: None
self.previous_func = previous_func
self.prompt = prompt
self._insert_verbatim = _insert_verbatim
self.debug = debug
# True to force meta on next character
self.next_meta = next_meta
self.process_keyevent_queue = [self._process_keyevent]
self._history = LineHistory()
# _history_cursor, _history_length, history, # history_filename
# )
super().__init__(rlobj, *args, *kwargs)
def __repr__(self):
return "<EmacsMode>"
def add_key_logger(self, logfun):
"""logfun should be function that takes `disp_fun` and `line`_"""
self._keylog = logfun
def nop(self, *args, **kwargs):
pass
def process_keyevent(self, keyinfo):
try:
r = self.process_keyevent_queue[-1](keyinfo)
except LeaveModeTryNext:
self.process_keyevent_queue = self.process_keyevent_queue[:-1]
r = self.process_keyevent(keyinfo)
if r:
self.add_history(self.l_buffer.copy())
return True
return False
def _process_keyevent(self, keyinfo):
"""Return True when line is final."""
# Process exit keys. Only exit on empty line
if self.debug:
log("_process_keyevent <%s>" % keyinfo)
if self.next_meta:
self.next_meta = False
keyinfo.meta = True
keytuple = keyinfo.tuple()
if self._insert_verbatim:
self.insert_text(keyinfo)
self._insert_verbatim = False
self.argument = 0
return False
if keytuple in self.exit_dispatch:
pars = (self.l_buffer, lineobj.EndOfLine(self.l_buffer))
log("exit_dispatch:<%s, %s>" % pars)
if lineobj.EndOfLine(self.l_buffer) == 0:
raise EOFError
if keyinfo.keyname or keyinfo.control or keyinfo.meta:
default = self.nop
else:
default = self.self_insert
dispatch_func = self.key_dispatch.get(keytuple, default)
if self.debug:
log("readline from keyboard:<%s,%s>" % (keytuple, dispatch_func))
r = None
if dispatch_func:
r = dispatch_func(keyinfo)
self._keylog(dispatch_func, self.l_buffer)
self.l_buffer.push_undo()
self.previous_func = dispatch_func
return r
# History commands
def previous_history(self, e): # (C-p)
"""Move back through the history list, fetching the previous command."""
self._history.previous_history(self.l_buffer)
self.l_buffer.point = lineobj.EndOfLine
self.finalize()
def next_history(self, e): # (C-n)
"""Move forward through the history list, fetching the next command."""
self._history.next_history(self.l_buffer)
self.finalize()
def beginning_of_history(self, e): # (M-<)
"""Move to the first line in the history."""
self._history.beginning_of_history()
self.finalize()
def end_of_history(self, e): # (M->)
"""Move to the end of the input history."""
self._history.end_of_history(self.l_buffer)
self.finalize()
def reverse_search_history(self, e): # (C-r)
"""Search backward starting at the current line and moving up
through the history as necessary. This is an incremental search."""
log("rev_search_history")
self._init_incremental_search(self._history.reverse_search_history, e)
self.finalize()
def forward_search_history(self, e): # (C-s)
"""Search forward starting at the current line and moving down
through the the history as necessary. This is an incremental
search."""
log("fwd_search_history")
self._init_incremental_search(self._history.forward_search_history, e)
self.finalize()
def history_search_forward(self, e): # ()
"""Search forward through the history for the string of characters
between the start of the current line and the point. This is a
non-incremental search. By default, this command is unbound."""
# everything about this feels like it should be implemented in the
# history class
if self.previous_func and hasattr(self._history,
self.previous_func.__name__):
self._history.lastcommand = getattr(self._history,
self.previous_func.__name__)
else:
self._history.lastcommand = None
# Up until here
q = self._history.history_search_forward(self.l_buffer)
if q is None:
return # TODO: raise?
self.l_buffer = q
self.l_buffer.point = q.point
self.finalize()
def history_search_backward(self, e): # ()
"""Search backward through the history for the string of characters
between the start of the current line and the point.
This is a non-incremental search. By default, this command is unbound.
"""
if self.previous_func and hasattr(self._history,
self.previous_func.__name__):
self._history.lastcommand = getattr(self._history,
self.previous_func.__name__)
else:
self._history.lastcommand = None
q = self._history.history_search_backward(self.l_buffer)
if q is None:
return # TODO: raise?
self.l_buffer = q
self.l_buffer.point = q.point
self.finalize()
def yank_nth_arg(self, e): # (M-C-y)
"""Insert the first argument to the previous command (usually the
second word on the previous line) at point. With an argument n,
insert the nth word from the previous command (the words in the
previous command begin with word 0). A negative argument inserts the
nth word from the end of the previous command."""
self.finalize()
def yank_last_arg(self, e): # (M-. or M-_)
"""Insert last argument to the previous command (the last word of
the previous history entry). With an argument, behave exactly like
yank-nth-arg. Successive calls to yank-last-arg move back through
the history list, inserting the last argument of each line in turn."""
self.finalize()
def forward_backward_delete_char(self, e): # ()
"""Delete the character under the cursor, unless the cursor is at
the end of the line, in which case the character behind the cursor
is deleted. By default, this is not bound to a key."""
self.finalize()
def quoted_insert(self, e): # (C-q or C-v)
"""Add the next character typed to the line verbatim. This is how to
insert key sequences like C-q, for example."""
self._insert_verbatim = True
self.finalize()
def tab_insert(self, e): # (M-TAB)
"""Insert a tab character. """
cursor = min(self.l_buffer.point, len(self.l_buffer.line_buffer))
ws = " " * (self.tabstop - (cursor % self.tabstop))
self.insert_text(ws)
self.finalize()
def transpose_chars(self, e): # (C-t)
"""Drag the character before the cursor forward over the character
at the cursor, moving the cursor forward as well. If the insertion
point is at the end of the line, then this transposes the last two
characters of the line. Negative arguments have no effect."""
self.l_buffer.transpose_chars()
self.finalize()
def transpose_words(self, e): # (M-t)
"""Drag the word before point past the word after point, moving
point past that word as well. If the insertion point is at the end
of the line, this transposes the last two words on the line."""
self.l_buffer.transpose_words()
self.finalize()
def overwrite_mode(self, e): # ()
"""Toggle overwrite mode. With an explicit positive numeric
argument, switches to overwrite mode. With an explicit non-positive
numeric argument, switches to insert mode. This command affects only
emacs mode; vi mode does overwrite differently. Each call to
readline() starts in insert mode. In overwrite mode, characters
bound to self-insert replace the text at point rather than pushing
the text to the right. Characters bound to backward-delete-char
replace the character before point with a space."""
self.finalize()
def kill_line(self, e): # (C-k)
"""Kill the text from point to the end of the line. """
self.l_buffer.kill_line()
self.finalize()
def backward_kill_line(self, e): # (C-x Rubout)
"""Kill backward to the beginning of the line. """
self.l_buffer.backward_kill_line()
self.finalize()
def unix_line_discard(self, e): # (C-u)
"""Kill backward from the cursor to the beginning of the current
line. """
# how is this different from backward_kill_line?
self.l_buffer.unix_line_discard()
self.finalize()
def kill_whole_line(self, e): # ()
"""Kill all characters on the current line, no matter where point
is. By default, this is unbound."""
self.l_buffer.kill_whole_line()
self.finalize()
def kill_word(self, e): # (M-d)
"""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."""
self.l_buffer.kill_word()
self.finalize()
forward_kill_word = kill_word
def backward_kill_word(self, e): # (M-DEL)
"""Kill the word behind point. Word boundaries are the same as
backward-word. """
self.l_buffer.backward_kill_word()
self.finalize()
def unix_word_rubout(self, e): # (C-w)
"""Kill the word behind point, using white space as a word
boundary. The killed text is saved on the kill-ring."""
self.l_buffer.unix_word_rubout()
self.finalize()
def kill_region(self, e): # ()
"""Kill the text in the current region. By default, this command is
unbound. """
self.finalize()
def copy_region_as_kill(self, e): # ()
"""Copy the text in the region to the kill buffer, so it can be
yanked right away. By default, this command is unbound."""
self.finalize()
def copy_backward_word(self, e): # ()
"""Copy the word before point to the kill buffer. The word
boundaries are the same as backward-word. By default, this command
is unbound."""
self.finalize()
def copy_forward_word(self, e): # ()
"""Copy the word following point to the kill buffer. The word
boundaries are the same as forward-word. By default, this command is
unbound."""
self.finalize()
def yank(self, e): # (C-y)
"""Yank the top of the kill ring into the buffer at point. """
self.l_buffer.yank()
self.finalize()
def yank_pop(self, e): # (M-y)
"""Rotate the kill-ring, and yank the new top. You can only do this
if the prior command is yank or yank-pop."""
self.l_buffer.yank_pop()
self.finalize()
def delete_char_or_list(self, e): # ()
"""Deletes the character under the cursor if not at the beginning or
end of the line (like delete-char). If at the end of the line,
behaves identically to possible-completions. This command is unbound
by default."""
self.finalize()
def start_kbd_macro(self, e): # (C-x ()
"""Begin saving the characters typed into the current keyboard
macro. """
self.finalize()
def end_kbd_macro(self, e): # (C-x ))
"""Stop saving the characters typed into the current keyboard macro
and save the definition."""
self.finalize()
def call_last_kbd_macro(self, e): # (C-x e)
"""Re-execute the last keyboard macro defined, by making the
characters in the macro appear as if typed at the keyboard."""
self.finalize()
def re_read_init_file(self, e): # (C-x C-r)
"""Read in the contents of the inputrc file, and incorporate any
bindings or variable assignments found there."""
self.finalize()
def abort(self, e): # (C-g)
"""Abort the current editing command and ring the terminals bell
(subject to the setting of bell-style)."""
self._bell()
self.finalize()
def do_uppercase_version(self, e): # (M-a, M-b, M-x, ...)
"""If the metafied character x is lowercase, run the command that is
bound to the corresponding uppercase character."""
self.finalize()
def prefix_meta(self, e): # (ESC)
"""Metafy the next character typed. This is for keyboards without a
meta key. Typing ESC f is equivalent to typing M-f. """
self.next_meta = True
self.finalize()
def undo(self, e): # (C-_ or C-x C-u)
"""Incremental undo, separately remembered for each line."""
self.l_buffer.pop_undo()
self.finalize()
def revert_line(self, e): # (M-r)
"""Undo all changes made to this line. This is like executing the
undo command enough times to get back to the beginning."""
self.finalize()
def tilde_expand(self, e): # (M-~)
"""Perform tilde expansion on the current word."""
self.finalize()
def set_mark(self, e): # (C-@)
"""Set the mark to the point. If a numeric argument is supplied, the
mark is set to that position."""
self.l_buffer.set_mark()
self.finalize()
def exchange_point_and_mark(self, e): # (C-x C-x)
"""Swap the point with the mark. The current cursor position is set
to the saved position, and the old cursor position is saved as the
mark."""
self.finalize()
def character_search(self, e): # (C-])
"""A character is read and point is moved to the next occurrence of
that character. A negative count searches for previous occurrences."""
self.finalize()
def character_search_backward(self, e): # (M-C-])
"""A character is read and point is moved to the previous occurrence
of that character. A negative count searches for subsequent
occurrences."""
self.finalize()
def insert_comment(self, e): # (M-#)
"""Without a numeric argument, the value of the comment-begin
variable is inserted at the beginning of the current line. If a
numeric argument is supplied, this command acts as a toggle: if the
characters at the beginning of the line do not match the value of
comment-begin, the value is inserted, otherwise the characters in
comment-begin are deleted from the beginning of the line. In either
case, the line is accepted as if a newline had been typed."""
self.finalize()
def dump_variables(self, e): # ()
"""Print all of the settable variables and their values to the
Readline output stream. If a numeric argument is supplied, the
output is formatted in such a way that it can be made part of an
inputrc file. This command is unbound by default."""
self.finalize()
def dump_macros(self, e): # ()
"""Print all of the Readline key sequences bound to macros and the
strings they output.
If a numeric argument is supplied, the output is formatted in such a way
that it can be made part of an inputrc file.
This command is unbound by default.
"""
self.finalize()
def digit_argument(self, e): # (M-0, M-1, ... M--)
"""Add this digit to the argument already accumulating, or start a
new argument.
M-- starts a negative argument.
"""
self._init_digit_argument(e)
# Should not finalize
def universal_argument(self, e): # ()
"""This is another way to specify an argument.
If this command is followed by one or more digits, optionally with a leading minus
sign, those digits define the argument. If the command is followed
by digits, executing universal-argument again ends the numeric
argument, but is otherwise ignored. As a special case, if this
command is immediately followed by a character that is neither a
digit or minus sign, the argument count for the next command is
multiplied by four. The argument count is initially one, so
executing this function the first time makes the argument count
four, a second time makes the argument count sixteen, and so on.
By default, this is not bound to a key.
"""
pass
# Should not finalize
def init_editing_mode(self, *args): # (C-e)
"""Create key bindings."""
self._bind_exit_key("Control-d")
self._bind_exit_key("Control-z")
# I often accidentally hold the shift or control while typing space
self._bind_key("space", self.self_insert)
self._bind_key("Shift-space", self.self_insert)
self._bind_key("Control-space", self.self_insert)
self._bind_key("Return", self.accept_line)
self._bind_key("Left", self.backward_char)
self._bind_key("Control-b", self.backward_char)
self._bind_key("Right", self.forward_char)
self._bind_key("Control-f", self.forward_char)
self._bind_key("Control-h", self.backward_delete_char)
self._bind_key("BackSpace", self.backward_delete_char)
self._bind_key("Control-BackSpace", self.backward_delete_word)
self._bind_key("Home", self.beginning_of_line)
self._bind_key("End", self.end_of_line)
self._bind_key("Delete", self.delete_char)
self._bind_key("Control-d", self.delete_char)
self._bind_key("Clear", self.clear_screen)
self._bind_key("Alt-f", self.forward_word)
self._bind_key("Alt-b", self.backward_word)
self._bind_key("Control-l", self.clear_screen)
self._bind_key("Control-p", self.previous_history)
self._bind_key("Up", self.history_search_backward)
self._bind_key("Control-n", self.next_history)
self._bind_key("Down", self.history_search_forward)
self._bind_key("Control-a", self.beginning_of_line)
self._bind_key("Control-e", self.end_of_line)
self._bind_key("Alt-<", self.beginning_of_history)
self._bind_key("Alt->", self.end_of_history)
self._bind_key("Control-r", self.reverse_search_history)
self._bind_key("Control-s", self.forward_search_history)
self._bind_key("Control-Shift-r", self.forward_search_history)
self._bind_key("Alt-p", self.non_incremental_reverse_search_history)
self._bind_key("Alt-n", self.non_incremental_forward_search_history)
self._bind_key("Control-z", self.undo)
self._bind_key("Control-_", self.undo)
self._bind_key("Escape", self.kill_whole_line)
self._bind_key("Meta-d", self.kill_word)
self._bind_key("Control-Delete", self.forward_delete_word)
self._bind_key("Control-w", self.unix_word_rubout)
# self._bind_key('Control-Shift-v', self.quoted_insert)
self._bind_key("Control-v", self.paste)
self._bind_key("Alt-v", self.ipython_paste)
self._bind_key("Control-y", self.yank)
self._bind_key("Control-k", self.kill_line)
self._bind_key("Control-m", self.set_mark)
self._bind_key("Control-q", self.copy_region_to_clipboard)
# self._bind_key('Control-shift-k', self.kill_whole_line)
self._bind_key("Control-Shift-v", self.paste_mulitline_code)
self._bind_key("Control-Right", self.forward_word_end)
self._bind_key("Control-Left", self.backward_word)
self._bind_key("Shift-Right", self.forward_char_extend_selection)
self._bind_key("Shift-Left", self.backward_char_extend_selection)
self._bind_key("Shift-Control-Right",
self.forward_word_end_extend_selection)
self._bind_key("Shift-Control-Left",
self.backward_word_extend_selection)
self._bind_key("Shift-Home", self.beginning_of_line_extend_selection)
self._bind_key("Shift-End", self.end_of_line_extend_selection)
self._bind_key("numpad0", self.self_insert)
self._bind_key("numpad1", self.self_insert)
self._bind_key("numpad2", self.self_insert)
self._bind_key("numpad3", self.self_insert)
self._bind_key("numpad4", self.self_insert)
self._bind_key("numpad5", self.self_insert)
self._bind_key("numpad6", self.self_insert)
self._bind_key("numpad7", self.self_insert)
self._bind_key("numpad8", self.self_insert)
self._bind_key("numpad9", self.self_insert)
self._bind_key("add", self.self_insert)
self._bind_key("subtract", self.self_insert)
self._bind_key("multiply", self.self_insert)
self._bind_key("divide", self.self_insert)
self._bind_key("vk_decimal", self.self_insert)
# log("RUNNING INIT EMACS")
for i in range(0, 10):
self._bind_key("alt-%d" % i, self.digit_argument)
self._bind_key("alt--", self.digit_argument)
def setUp(self):
self.buf = LineHistory()