Viewing File: /home/ubuntu/combine_ai/combine/lib/python3.10/site-packages/pyreadline3/lineeditor/lineobj.py
# -*- coding: utf-8 -*-
# *****************************************************************************
# Copyright (C) 2006-2020 Jorgen Stenarson. <jorgen.stenarson@bostream.nu>
# Copyright (C) 2020 Bassem Girgis. <brgirgis@gmail.com>
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
# *****************************************************************************
from __future__ import absolute_import, print_function, unicode_literals
import pyreadline3.clipboard as clipboard
from pyreadline3.unicode_helper import biter, ensure_unicode
from . import wordmatcher
# set to true to copy every addition to kill ring to clipboard
kill_ring_to_clipboard = False
class NotAWordError(IndexError):
pass
def quote_char(c):
if ord(c) > 0:
return c
# ############# Line positioner ########################
class LinePositioner(object):
def __call__(self, line):
NotImplementedError("Base class !!!")
class NextChar(LinePositioner):
def __call__(self, line):
if line.point < len(line.line_buffer):
return line.point + 1
else:
return line.point
NextChar = NextChar()
class PrevChar(LinePositioner):
def __call__(self, line):
if line.point > 0:
return line.point - 1
else:
return line.point
PrevChar = PrevChar()
class NextWordStart(LinePositioner):
def __call__(self, line):
return line.next_start_segment(
line.line_buffer,
line.is_word_token)[
line.point]
NextWordStart = NextWordStart()
class NextWordEnd(LinePositioner):
def __call__(self, line):
return line.next_end_segment(
line.line_buffer,
line.is_word_token)[
line.point]
NextWordEnd = NextWordEnd()
class PrevWordStart(LinePositioner):
def __call__(self, line):
return line.prev_start_segment(
line.line_buffer,
line.is_word_token)[
line.point]
PrevWordStart = PrevWordStart()
class WordStart(LinePositioner):
def __call__(self, line):
if line.is_word_token(
line.get_line_text()[
Point(line):Point(line) + 1]):
if Point(line) > 0 and line.is_word_token(
line.get_line_text()[Point(line) - 1:Point(line)]):
return PrevWordStart(line)
else:
return line.point
else:
raise NotAWordError("Point is not in a word")
WordStart = WordStart()
class WordEnd(LinePositioner):
def __call__(self, line):
if line.is_word_token(
line.get_line_text()[
Point(line):Point(line) + 1]):
if line.is_word_token(
line.get_line_text()[
Point(line) + 1:Point(line) + 2]):
return NextWordEnd(line)
else:
return line.point
else:
raise NotAWordError("Point is not in a word")
WordEnd = WordEnd()
class PrevWordEnd(LinePositioner):
def __call__(self, line):
return line.prev_end_segment(
line.line_buffer,
line.is_word_token)[
line.point]
PrevWordEnd = PrevWordEnd()
class PrevSpace(LinePositioner):
def __call__(self, line):
point = line.point
if line[point - 1:point].get_line_text() == " ":
while point > 0 and line[point - 1:point].get_line_text() == " ":
point -= 1
while point > 0 and line[point - 1:point].get_line_text() != " ":
point -= 1
return point
PrevSpace = PrevSpace()
class StartOfLine(LinePositioner):
def __call__(self, line):
return 0
StartOfLine = StartOfLine()
class EndOfLine(LinePositioner):
def __call__(self, line):
return len(line.line_buffer)
EndOfLine = EndOfLine()
class Point(LinePositioner):
def __call__(self, line):
return line.point
Point = Point()
class Mark(LinePositioner):
def __call__(self, line):
return line.mark
k = Mark()
all_positioners = sorted([(value.__class__.__name__, value)
for key, value in globals().items()
if isinstance(value, LinePositioner)])
# ############## LineSlice #################
class LineSlice(object):
def __call__(self, line):
NotImplementedError("Base class !!!")
class CurrentWord(LineSlice):
def __call__(self, line):
return slice(WordStart(line), WordEnd(line), None)
CurrentWord = CurrentWord()
class NextWord(LineSlice):
def __call__(self, line):
work = TextLine(line)
work.point = NextWordStart
start = work.point
stop = NextWordEnd(work)
return slice(start, stop)
NextWord = NextWord()
class PrevWord(LineSlice):
def __call__(self, line):
work = TextLine(line)
work.point = PrevWordEnd
stop = work.point
start = PrevWordStart(work)
return slice(start, stop)
PrevWord = PrevWord()
class PointSlice(LineSlice):
def __call__(self, line):
return slice(Point(line), Point(line) + 1, None)
PointSlice = PointSlice()
# ############## TextLine ######################
class TextLine(object):
def __init__(self, txtstr, point=None, mark=None):
self.line_buffer = []
self._point = 0
self.mark = -1
self.undo_stack = []
self.overwrite = False
if isinstance(txtstr, TextLine): # copy
self.line_buffer = txtstr.line_buffer[:]
if point is None:
self.point = txtstr.point
else:
self.point = point
if mark is None:
self.mark = txtstr.mark
else:
self.mark = mark
else:
self._insert_text(txtstr)
if point is None:
self.point = 0
else:
self.point = point
if mark is None:
self.mark = -1
else:
self.mark = mark
self.is_word_token = wordmatcher.is_word_token
self.next_start_segment = wordmatcher.next_start_segment
self.next_end_segment = wordmatcher.next_end_segment
self.prev_start_segment = wordmatcher.prev_start_segment
self.prev_end_segment = wordmatcher.prev_end_segment
def push_undo(self):
l_text = self.get_line_text()
if self.undo_stack and l_text == self.undo_stack[-1].get_line_text():
self.undo_stack[-1].point = self.point
else:
self.undo_stack.append(self.copy())
def pop_undo(self):
if len(self.undo_stack) >= 2:
self.undo_stack.pop()
self.set_top_undo()
self.undo_stack.pop()
else:
self.reset_line()
self.undo_stack = []
def set_top_undo(self):
if self.undo_stack:
undo = self.undo_stack[-1]
self.line_buffer = undo.line_buffer
self.point = undo.point
self.mark = undo.mark
else:
pass
def __repr__(self):
return 'TextLine("%s",point=%s,mark=%s)' % (
self.line_buffer, self.point, self.mark)
def copy(self):
return self.__class__(self)
def set_point(self, value):
if isinstance(value, LinePositioner):
value = value(self)
assert (value <= len(self.line_buffer))
if value > len(self.line_buffer):
value = len(self.line_buffer)
self._point = value
def get_point(self):
return self._point
point = property(get_point, set_point)
def visible_line_width(self, position=Point):
"""Return the visible width of the text up to position."""
extra_char_width = len(
[
None
for c in self[:position].line_buffer
if 0x2013 <= ord(c) <= 0xFFFD
]
)
return len(self[:position].quoted_text()) + \
self[:position].line_buffer.count("\t") * 7 + extra_char_width
def quoted_text(self):
quoted = [quote_char(c) for c in self.line_buffer]
return ''.join(map(ensure_unicode, quoted))
def get_line_text(self):
buf = self.line_buffer
buf = list(map(ensure_unicode, buf))
return ''.join(buf)
def set_line(self, text, cursor=None):
self.line_buffer = [c for c in str(text)]
if cursor is None:
self.point = len(self.line_buffer)
else:
self.point = cursor
def reset_line(self):
self.line_buffer = []
self.point = 0
def end_of_line(self):
self.point = len(self.line_buffer)
def _insert_text(self, text, argument=1):
text = text * argument
if self.overwrite:
for c in biter(text):
# if self.point:
self.line_buffer[self.point] = c
self.point += 1
else:
for c in biter(text):
self.line_buffer.insert(self.point, c)
self.point += 1
def __getitem__(self, key):
# Check if key is LineSlice, convert to regular slice
# and continue processing
if isinstance(key, LineSlice):
key = key(self)
if isinstance(key, slice):
if key.step is None:
pass
else:
raise RuntimeError('step is not "None"')
if key.start is None:
start = StartOfLine(self)
elif isinstance(key.start, LinePositioner):
start = key.start(self)
else:
start = key.start
if key.stop is None:
stop = EndOfLine(self)
elif isinstance(key.stop, LinePositioner):
stop = key.stop(self)
else:
stop = key.stop
return self.__class__(self.line_buffer[start:stop], point=0)
elif isinstance(key, LinePositioner):
return self.line_buffer[key(self)]
elif isinstance(key, tuple):
# Multiple slice not allowed
raise IndexError("Cannot use step in line buffer indexing")
else:
# return TextLine(self.line_buffer[key])
return self.line_buffer[key]
def __delitem__(self, key):
point = self.point
if isinstance(key, LineSlice):
key = key(self)
if isinstance(key, slice):
start = key.start
stop = key.stop
if isinstance(start, LinePositioner):
start = start(self)
elif start is None:
start = 0
if isinstance(stop, LinePositioner):
stop = stop(self)
elif stop is None:
stop = EndOfLine(self)
elif isinstance(key, LinePositioner):
start = key(self)
stop = start + 1
else:
start = key
stop = key + 1
prev = self.line_buffer[:start]
rest = self.line_buffer[stop:]
self.line_buffer = prev + rest
if point > stop:
self.point = point - (stop - start)
elif point >= start and point <= stop:
self.point = start
def __setitem__(self, key, value):
if isinstance(key, LineSlice):
key = key(self)
if isinstance(key, slice):
start = key.start
stop = key.stop
elif isinstance(key, LinePositioner):
start = key(self)
stop = start + 1
else:
start = key
stop = key + 1
prev = self.line_buffer[:start]
value = self.__class__(value).line_buffer
rest = self.line_buffer[stop:]
out = prev + value + rest
if len(out) >= len(self):
self.point = len(self)
self.line_buffer = out
def __len__(self):
return len(self.line_buffer)
def upper(self):
self.line_buffer = [x.upper() for x in self.line_buffer]
return self
def lower(self):
self.line_buffer = [x.lower() for x in self.line_buffer]
return self
def capitalize(self):
self.set_line(self.get_line_text().capitalize(), self.point)
return self
def startswith(self, txt):
return self.get_line_text().startswith(txt)
def endswith(self, txt):
return self.get_line_text().endswith(txt)
def __contains__(self, txt):
return txt in self.get_line_text()
class ReadLineTextBuffer(TextLine):
def __init__(self, txtstr, point=None, mark=None):
super(ReadLineTextBuffer, self).__init__(txtstr, point, mark)
self.enable_win32_clipboard = True
self.selection_mark = -1
self.enable_selection = True
self.kill_ring = []
def __repr__(self):
return 'ReadLineTextBuffer'\
'("%s",point=%s,mark=%s,selection_mark=%s)' %\
(self.line_buffer, self.point, self.mark, self.selection_mark)
def insert_text(self, char, argument=1):
self.delete_selection()
self.selection_mark = -1
self._insert_text(char, argument)
def to_clipboard(self):
if self.enable_win32_clipboard:
clipboard.set_clipboard_text(self.get_line_text())
# Movement
def beginning_of_line(self):
self.selection_mark = -1
self.point = StartOfLine
def end_of_line(self):
self.selection_mark = -1
self.point = EndOfLine
def forward_char(self, argument=1):
if argument < 0:
self.backward_char(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = NextChar
def backward_char(self, argument=1):
if argument < 0:
self.forward_char(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = PrevChar
def forward_word(self, argument=1):
if argument < 0:
self.backward_word(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = NextWordStart
def backward_word(self, argument=1):
if argument < 0:
self.forward_word(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = PrevWordStart
def forward_word_end(self, argument=1):
if argument < 0:
self.backward_word_end(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = NextWordEnd
def backward_word_end(self, argument=1):
if argument < 0:
self.forward_word_end(-argument)
self.selection_mark = -1
for _ in range(argument):
self.point = NextWordEnd
# Movement select
def beginning_of_line_extend_selection(self):
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
self.point = StartOfLine
def end_of_line_extend_selection(self):
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
self.point = EndOfLine
def forward_char_extend_selection(self, argument=1):
if argument < 0:
self.backward_char_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = NextChar
def backward_char_extend_selection(self, argument=1):
if argument < 0:
self.forward_char_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = PrevChar
def forward_word_extend_selection(self, argument=1):
if argument < 0:
self.backward_word_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = NextWordStart
def backward_word_extend_selection(self, argument=1):
if argument < 0:
self.forward_word_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = PrevWordStart
def forward_word_end_extend_selection(self, argument=1):
if argument < 0:
self.backward_word_end_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = NextWordEnd
def backward_word_end_extend_selection(self, argument=1):
if argument < 0:
self.forward_word_end_extend_selection(-argument)
if self.enable_selection and self.selection_mark < 0:
self.selection_mark = self.point
for _ in range(argument):
self.point = PrevWordEnd
# delete
def delete_selection(self):
if self.enable_selection and self.selection_mark >= 0:
if self.selection_mark < self.point:
del self[self.selection_mark:self.point]
self.selection_mark = -1
else:
del self[self.point:self.selection_mark]
self.selection_mark = -1
return True
else:
self.selection_mark = -1
return False
def delete_char(self, argument=1):
if argument < 0:
self.backward_delete_char(-argument)
if self.delete_selection():
argument -= 1
for _ in range(argument):
del self[Point]
def backward_delete_char(self, argument=1):
if argument < 0:
self.delete_char(-argument)
if self.delete_selection():
argument -= 1
for _ in range(argument):
if self.point > 0:
self.backward_char()
self.delete_char()
def forward_delete_word(self, argument=1):
if argument < 0:
self.backward_delete_word(-argument)
if self.delete_selection():
argument -= 1
for _ in range(argument):
del self[Point:NextWordStart]
def backward_delete_word(self, argument=1):
if argument < 0:
self.forward_delete_word(-argument)
if self.delete_selection():
argument -= 1
for _ in range(argument):
del self[PrevWordStart:Point]
def delete_current_word(self):
if not self.delete_selection():
del self[CurrentWord]
self.selection_mark = - 1
def delete_horizontal_space(self):
if self[Point] in " \t":
del self[PrevWordEnd:NextWordStart]
self.selection_mark = -1
# Case
def upcase_word(self):
p = self.point
try:
self[CurrentWord] = self[CurrentWord].upper()
self.point = p
except NotAWordError:
pass
def downcase_word(self):
p = self.point
try:
self[CurrentWord] = self[CurrentWord].lower()
self.point = p
except NotAWordError:
pass
def capitalize_word(self):
p = self.point
try:
self[CurrentWord] = self[CurrentWord].capitalize()
self.point = p
except NotAWordError:
pass
# Transpose
def transpose_chars(self):
p2 = Point(self)
if p2 == 0:
return
elif p2 == len(self):
p2 = p2 - 1
p1 = p2 - 1
self[p2], self[p1] = self[p1], self[p2]
self.point = p2 + 1
def transpose_words(self):
word1 = TextLine(self)
word2 = TextLine(self)
if self.point == len(self):
word2.point = PrevWordStart
word1.point = PrevWordStart(word2)
else:
word1.point = PrevWordStart
word2.point = NextWordStart
stop1 = NextWordEnd(word1)
stop2 = NextWordEnd(word2)
start1 = word1.point
start2 = word2.point
self[start2:stop2] = word1[Point:NextWordEnd]
self[start1:stop1] = word2[Point:NextWordEnd]
self.point = stop2
# Kill
def kill_line(self):
self.add_to_kill_ring(self[self.point:])
del self.line_buffer[self.point:]
def kill_whole_line(self):
self.add_to_kill_ring(self[:])
del self[:]
def backward_kill_line(self):
del self[StartOfLine:Point]
def unix_line_discard(self):
del self[StartOfLine:Point]
def kill_word(self):
"""Kills to next word ending"""
del self[Point:NextWordEnd]
def backward_kill_word(self):
"""Kills to next word ending"""
if not self.delete_selection():
del self[PrevWordStart:Point]
self.selection_mark = -1
def forward_kill_word(self):
"""Kills to next word ending"""
if not self.delete_selection():
del self[Point:NextWordEnd]
self.selection_mark = -1
def unix_word_rubout(self):
if not self.delete_selection():
del self[PrevSpace:Point]
self.selection_mark = -1
def kill_region(self):
pass
def copy_region_as_kill(self):
pass
def copy_backward_word(self):
pass
def copy_forward_word(self):
pass
def yank(self):
self.paste_from_kill_ring()
def yank_pop(self):
pass
# Mark
def set_mark(self):
self.mark = self.point
def exchange_point_and_mark(self):
pass
def copy_region_to_clipboard(self): # ()
'''Copy the text in the region to the windows clipboard.'''
if self.enable_win32_clipboard:
mark = min(self.mark, len(self.line_buffer))
cursor = min(self.point, len(self.line_buffer))
if self.mark == -1:
return
begin = min(cursor, mark)
end = max(cursor, mark)
toclipboard = "".join(self.line_buffer[begin:end])
clipboard.SetClipboardText(toclipboard)
def copy_selection_to_clipboard(self): # ()
'''Copy the text in the region to the windows clipboard.'''
if self.enable_win32_clipboard and self.enable_selection and \
self.selection_mark >= 0:
selection_mark = min(self.selection_mark, len(self.line_buffer))
cursor = min(self.point, len(self.line_buffer))
if self.selection_mark == -1:
return
begin = min(cursor, selection_mark)
end = max(cursor, selection_mark)
toclipboard = "".join(self.line_buffer[begin:end])
clipboard.SetClipboardText(toclipboard)
def cut_selection_to_clipboard(self): # ()
self.copy_selection_to_clipboard()
self.delete_selection()
# Paste
# Kill ring
def add_to_kill_ring(self, txt):
self.kill_ring = [txt]
if kill_ring_to_clipboard:
clipboard.SetClipboardText(txt.get_line_text())
def paste_from_kill_ring(self):
if self.kill_ring:
self.insert_text(self.kill_ring[0])
##################################################################
q = ReadLineTextBuffer("asff asFArw ewrWErhg", point=8)
q = TextLine("asff asFArw ewrWErhg", point=8)
def show_pos(buff, pos, chr="."):
l_n = len(buff.line_buffer)
def choice(is_bool):
if is_bool:
return chr
else:
return " "
return "".join([choice(pos == idx) for idx in range(l_n + 1)])
def test_positioner(buff, points, positioner):
print((" %s " % positioner.__class__.__name__).center(40, "-"))
buffstr = buff.line_buffer
print('"%s"' % (buffstr))
for point in points:
b = TextLine(buff, point=point)
out = [" "] * (len(buffstr) + 1)
pos = positioner(b)
if pos == point:
out[pos] = "&"
else:
out[point] = "."
out[pos] = "^"
print('"%s"' % ("".join(out)))
if __name__ == "__main__":
print('%-15s "%s"' % ("Position", q.get_line_text()))
print('%-15s "%s"' % ("Point", show_pos(q, q.point)))
for name, positioner_q in all_positioners:
pos_q = positioner_q(q)
print('%-15s "%s"' % (name, show_pos(q, pos_q, "^")))
l_t = ReadLineTextBuffer("kjjk asads asad")
l_t.point = EndOfLine
Back to Directory
File Manager