Repository navigation
Expand file tree
/
Copy pathcli.py
More file actions
2007 lines (1650 loc) · 61 KB
/
Copy pathcli.py
File metadata and controls
2007 lines (1650 loc) · 61 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# The MIT License
#
# Copyright (c) 2008 Bob Farrell
# Copyright (c) bpython authors
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Modified by Brandon Navra
# Notes for Windows
# Prerequisites
# - Curses
# - pyreadline
#
# Added
#
# - Support for running on windows command prompt
# - input from numpad keys
#
# Issues
#
# - Suspend doesn't work nor does detection of resizing of screen
# - Instead the suspend key exits the program
# - View source doesn't work on windows unless you install the less program (From GnuUtils or Cygwin)
import curses
import errno
import functools
import math
import os
import platform
import re
import struct
import sys
import time
from typing import Iterator, NoReturn, List
import unicodedata
from dataclasses import dataclass
if platform.system() != "Windows":
import signal # Windows does not have job control
import termios # Windows uses curses
import fcntl # Windows uses curses
# These are used for syntax highlighting
from pygments import format
from pygments.formatters import TerminalFormatter
from pygments.lexers import Python3Lexer
from pygments.token import Token
from .formatter import BPythonFormatter
# This for config
from .config import getpreferredencoding
# This for keys
from .keys import cli_key_dispatch as key_dispatch
# This for i18n
from . import translations
from .translations import _
from . import repl
from . import args as bpargs
from .pager import page
from .args import parse as argsparse
# --- module globals ---
stdscr = None
colors = None
DO_RESIZE = False
# ---
@dataclass
class ShowListState:
cols: int = 0
rows: int = 0
wl: int = 0
def calculate_screen_lines(tokens, width, cursor=0) -> int:
"""Given a stream of tokens and a screen width plus an optional
initial cursor position, return the amount of needed lines on the
screen."""
lines = 1
pos = cursor
for (token, value) in tokens:
if token is Token.Text and value == "\n":
lines += 1
else:
pos += len(value)
lines += pos // width
pos %= width
return lines
def forward_if_not_current(func):
@functools.wraps(func)
def newfunc(self, *args, **kwargs):
dest = self.get_dest()
if self is dest:
return func(self, *args, **kwargs)
else:
return getattr(self.get_dest(), newfunc.__name__)(*args, **kwargs)
return newfunc
class FakeStream:
"""Provide a fake file object which calls functions on the interface
provided."""
def __init__(self, interface, get_dest):
self.encoding: str = getpreferredencoding()
self.interface = interface
self.get_dest = get_dest
@forward_if_not_current
def write(self, s) -> None:
self.interface.write(s)
@forward_if_not_current
def writelines(self, l) -> None:
for s in l:
self.write(s)
def isatty(self) -> bool:
# some third party (amongst them mercurial) depend on this
return True
def flush(self) -> None:
self.interface.flush()
class FakeStdin:
"""Provide a fake stdin type for things like raw_input() etc."""
def __init__(self, interface) -> None:
"""Take the curses Repl on init and assume it provides a get_key method
which, fortunately, it does."""
self.encoding = getpreferredencoding()
self.interface = interface
self.buffer: List[str] = list()
def __iter__(self) -> Iterator:
return iter(self.readlines())
def flush(self):
"""Flush the internal buffer. This is a no-op. Flushing stdin
doesn't make any sense anyway."""
def write(self, value) -> NoReturn:
# XXX IPython expects sys.stdin.write to exist, there will no doubt be
# others, so here's a hack to keep them happy
raise OSError(errno.EBADF, "sys.stdin is read-only")
def isatty(self) -> bool:
return True
def readline(self, size=-1):
"""I can't think of any reason why anything other than readline would
be useful in the context of an interactive interpreter so this is the
only one I've done anything with. The others are just there in case
someone does something weird to stop it from blowing up."""
if not size:
return ""
elif self.buffer:
buffer = self.buffer.pop(0)
else:
buffer = ""
curses.raw(True)
try:
while not buffer.endswith(("\n", "\r")):
key = self.interface.get_key()
if key in (curses.erasechar(), "KEY_BACKSPACE"):
y, x = self.interface.scr.getyx()
if buffer:
self.interface.scr.delch(y, x - 1)
buffer = buffer[:-1]
continue
elif key == chr(4) and not buffer:
# C-d
return ""
elif key not in ("\n", "\r") and (
len(key) > 1 or unicodedata.category(key) == "Cc"
):
continue
sys.stdout.write(key)
# Include the \n in the buffer - raw_input() seems to deal with trailing
# linebreaks and will break if it gets an empty string.
buffer += key
finally:
curses.raw(False)
if size > 0:
rest = buffer[size:]
if rest:
self.buffer.append(rest)
buffer = buffer[:size]
return buffer
def read(self, size=None):
if size == 0:
return ""
data = list()
while size is None or size > 0:
line = self.readline(size or -1)
if not line:
break
if size is not None:
size -= len(line)
data.append(line)
return "".join(data)
def readlines(self, size=-1):
return list(iter(self.readline, ""))
# TODO:
#
# Tab completion does not work if not at the end of the line.
#
# Numerous optimisations can be made but it seems to do all the lookup stuff
# fast enough on even my crappy server so I'm not too bothered about that
# at the moment.
#
# The popup window that displays the argspecs and completion suggestions
# needs to be an instance of a ListWin class or something so I can wrap
# the addstr stuff to a higher level.
#
def get_color(config, name):
global colors
return colors[config.color_scheme[name].lower()]
def get_colpair(config, name):
return curses.color_pair(get_color(config, name) + 1)
def make_colors(config):
"""Init all the colours in curses and bang them into a dictionary"""
# blacK, Red, Green, Yellow, Blue, Magenta, Cyan, White, Default:
c = {
"k": 0,
"r": 1,
"g": 2,
"y": 3,
"b": 4,
"m": 5,
"c": 6,
"w": 7,
"d": -1,
}
if platform.system() == "Windows":
c = dict(
list(c.items())
+ [
("K", 8),
("R", 9),
("G", 10),
("Y", 11),
("B", 12),
("M", 13),
("C", 14),
("W", 15),
]
)
for i in range(63):
if i > 7:
j = i // 8
else:
j = c[config.color_scheme["background"]]
curses.init_pair(i + 1, i % 8, j)
return c
class CLIInteraction(repl.Interaction):
def __init__(self, config, statusbar=None):
super().__init__(config, statusbar)
def confirm(self, q):
"""Ask for yes or no and return boolean"""
try:
reply = self.statusbar.prompt(q)
except ValueError:
return False
return reply.lower() in (_("y"), _("yes"))
def notify(self, s, n=10, wait_for_keypress=False):
return self.statusbar.message(s, n)
def file_prompt(self, s):
return self.statusbar.prompt(s)
class CLIRepl(repl.Repl):
def __init__(self, scr, interp, statusbar, config, idle=None):
super().__init__(interp, config)
self.interp.writetb = self.writetb
self.scr = scr
self.stdout_hist = "" # native str (bytes in Py2, unicode in Py3)
self.list_win = newwin(get_colpair(config, "background"), 1, 1, 1, 1)
self.cpos = 0
self.do_exit = False
self.exit_value = ()
self.f_string = ""
self.idle = idle
self.in_hist = False
self.paste_mode = False
self.last_key_press = time.time()
self.s = ""
self.statusbar = statusbar
self.formatter = BPythonFormatter(config.color_scheme)
self.interact = CLIInteraction(self.config, statusbar=self.statusbar)
if config.cli_suggestion_width <= 0 or config.cli_suggestion_width > 1:
config.cli_suggestion_width = 0.8
def _get_cursor_offset(self):
return len(self.s) - self.cpos
def _set_cursor_offset(self, offset):
self.cpos = len(self.s) - offset
cursor_offset = property(
_get_cursor_offset,
_set_cursor_offset,
None,
"The cursor offset from the beginning of the line",
)
def addstr(self, s):
"""Add a string to the current input line and figure out
where it should go, depending on the cursor position."""
self.rl_history.reset()
if not self.cpos:
self.s += s
else:
l = len(self.s)
self.s = self.s[: l - self.cpos] + s + self.s[l - self.cpos :]
self.complete()
def atbol(self):
"""Return True or False accordingly if the cursor is at the beginning
of the line (whitespace is ignored). This exists so that p_key() knows
how to handle the tab key being pressed - if there is nothing but white
space before the cursor then process it as a normal tab otherwise
attempt tab completion."""
return not self.s.lstrip()
def bs(self, delete_tabs=True):
"""Process a backspace"""
self.rl_history.reset()
y, x = self.scr.getyx()
if not self.s:
return
if x == self.ix and y == self.iy:
return
n = 1
self.clear_wrapped_lines()
if not self.cpos:
# I know the nested if blocks look nasty. :(
if self.atbol() and delete_tabs:
n = len(self.s) % self.config.tab_length
if not n:
n = self.config.tab_length
self.s = self.s[:-n]
else:
self.s = self.s[: -self.cpos - 1] + self.s[-self.cpos :]
self.print_line(self.s, clr=True)
return n
def bs_word(self):
self.rl_history.reset()
pos = len(self.s) - self.cpos - 1
deleted = []
# First we delete any space to the left of the cursor.
while pos >= 0 and self.s[pos] == " ":
deleted.append(self.s[pos])
pos -= self.bs()
# Then we delete a full word.
while pos >= 0 and self.s[pos] != " ":
deleted.append(self.s[pos])
pos -= self.bs()
return "".join(reversed(deleted))
def check(self):
"""Check if paste mode should still be active and, if not, deactivate
it and force syntax highlighting."""
if (
self.paste_mode
and time.time() - self.last_key_press > self.config.paste_time
):
self.paste_mode = False
self.print_line(self.s)
def clear_current_line(self):
"""Called when a SyntaxError occurred in the interpreter. It is
used to prevent autoindentation from occurring after a
traceback."""
repl.Repl.clear_current_line(self)
self.s = ""
def clear_wrapped_lines(self):
"""Clear the wrapped lines of the current input."""
# curses does not handle this on its own. Sad.
height, width = self.scr.getmaxyx()
max_y = min(self.iy + (self.ix + len(self.s)) // width + 1, height)
for y in range(self.iy + 1, max_y):
self.scr.move(y, 0)
self.scr.clrtoeol()
def complete(self, tab=False):
"""Get Autocomplete list and window.
Called whenever these should be updated, and called
with tab
"""
if self.paste_mode:
self.scr.touchwin() # TODO necessary?
return
list_win_visible = repl.Repl.complete(self, tab)
if list_win_visible:
try:
self.show_list(
self.matches_iter.matches,
self.arg_pos,
topline=self.funcprops,
formatter=self.matches_iter.completer.format,
)
except curses.error:
# XXX: This is a massive hack, it will go away when I get
# cusswords into a good enough state that we can start
# using it.
self.list_win.border()
self.list_win.refresh()
list_win_visible = False
if not list_win_visible:
self.scr.redrawwin()
self.scr.refresh()
def clrtobol(self):
"""Clear from cursor to beginning of line; usual C-u behaviour"""
self.clear_wrapped_lines()
if not self.cpos:
self.s = ""
else:
self.s = self.s[-self.cpos :]
self.print_line(self.s, clr=True)
self.scr.redrawwin()
self.scr.refresh()
def _get_current_line(self):
return self.s
def _set_current_line(self, line):
self.s = line
current_line = property(
_get_current_line,
_set_current_line,
None,
"The characters of the current line",
)
def cut_to_buffer(self):
"""Clear from cursor to end of line, placing into cut buffer"""
self.cut_buffer = self.s[-self.cpos :]
self.s = self.s[: -self.cpos]
self.cpos = 0
self.print_line(self.s, clr=True)
self.scr.redrawwin()
self.scr.refresh()
def delete(self):
"""Process a del"""
if not self.s:
return
if self.mvc(-1):
self.bs(False)
def echo(self, s, redraw=True):
"""Parse and echo a formatted string with appropriate attributes. It
uses the formatting method as defined in formatter.py to parse the
strings. It won't update the screen if it's reevaluating the code (as it
does with undo)."""
a = get_colpair(self.config, "output")
if "\x01" in s:
rx = re.search("\x01([A-Za-z])([A-Za-z]?)", s)
if rx:
fg = rx.groups()[0]
bg = rx.groups()[1]
col_num = self._C[fg.lower()]
if bg and bg != "I":
col_num *= self._C[bg.lower()]
a = curses.color_pair(int(col_num) + 1)
if bg == "I":
a = a | curses.A_REVERSE
s = re.sub("\x01[A-Za-z][A-Za-z]?", "", s)
if fg.isupper():
a = a | curses.A_BOLD
s = s.replace("\x03", "")
s = s.replace("\x01", "")
# Replace NUL bytes, as addstr raises an exception otherwise
s = s.replace("\0", "")
# Replace \r\n bytes, as addstr remove the current line otherwise
s = s.replace("\r\n", "\n")
self.scr.addstr(s, a)
if redraw and not self.evaluating:
self.scr.refresh()
def end(self, refresh=True):
self.cpos = 0
h, w = gethw()
y, x = divmod(len(self.s) + self.ix, w)
y += self.iy
self.scr.move(y, x)
if refresh:
self.scr.refresh()
return True
def hbegin(self):
"""Replace the active line with first line in history and
increment the index to keep track"""
self.cpos = 0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s = self.rl_history.first()
self.print_line(self.s, clr=True)
def hend(self):
"""Same as hbegin() but, well, forward"""
self.cpos = 0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s = self.rl_history.last()
self.print_line(self.s, clr=True)
def back(self):
"""Replace the active line with previous line in history and
increment the index to keep track"""
self.cpos = 0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s = self.rl_history.back()
self.print_line(self.s, clr=True)
def fwd(self):
"""Same as back() but, well, forward"""
self.cpos = 0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s = self.rl_history.forward()
self.print_line(self.s, clr=True)
def search(self):
"""Search with the partial matches from the history object."""
self.cpo = 0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s = self.rl_history.back(start=False, search=True)
self.print_line(self.s, clr=True)
def get_key(self):
key = ""
while True:
try:
key += self.scr.getkey()
# Seems like we get a in the locale's encoding
# encoded string in Python 3 as well, but of
# type str instead of bytes, hence convert it to
# bytes first and decode then
key = key.encode("latin-1").decode(getpreferredencoding())
self.scr.nodelay(False)
except UnicodeDecodeError:
# Yes, that actually kind of sucks, but I don't see another way to get
# input right
self.scr.nodelay(True)
except curses.error:
# I'm quite annoyed with the ambiguity of this exception handler. I previously
# caught "curses.error, x" and accessed x.message and checked that it was "no
# input", which seemed a crappy way of doing it. But then I ran it on a
# different computer and the exception seems to have entirely different
# attributes. So let's hope getkey() doesn't raise any other crazy curses
# exceptions. :)
self.scr.nodelay(False)
# XXX What to do here? Raise an exception?
if key:
return key
else:
if key != "\x00":
t = time.time()
self.paste_mode = (
t - self.last_key_press <= self.config.paste_time
)
self.last_key_press = t
return key
else:
key = ""
finally:
if self.idle:
self.idle(self)
def get_line(self):
"""Get a line of text and return it
This function initialises an empty string and gets the
curses cursor position on the screen and stores it
for the echo() function to use later (I think).
Then it waits for key presses and passes them to p_key(),
which returns None if Enter is pressed (that means "Return",
idiot)."""
self.s = ""
self.rl_history.reset()
self.iy, self.ix = self.scr.getyx()
if not self.paste_mode:
for _ in range(self.next_indentation()):
self.p_key("\t")
self.cpos = 0
while True:
key = self.get_key()
if self.p_key(key) is None:
if self.config.cli_trim_prompts and self.s.startswith(">>> "):
self.s = self.s[4:]
return self.s
def home(self, refresh=True):
self.scr.move(self.iy, self.ix)
self.cpos = len(self.s)
if refresh:
self.scr.refresh()
return True
def lf(self):
"""Process a linefeed character; it only needs to check the
cursor position and move appropriately so it doesn't clear
the current line after the cursor."""
if self.cpos:
for _ in range(self.cpos):
self.mvc(-1)
# Reprint the line (as there was maybe a highlighted paren in it)
self.print_line(self.s, newline=True)
self.echo("\n")
def mkargspec(self, topline, in_arg, down):
"""This figures out what to do with the argspec and puts it nicely into
the list window. It returns the number of lines used to display the
argspec. It's also kind of messy due to it having to call so many
addstr() to get the colouring right, but it seems to be pretty
sturdy."""
r = 3
fn = topline.func
args = topline.argspec.args
kwargs = topline.argspec.defaults
_args = topline.argspec.varargs
_kwargs = topline.argspec.varkwargs
is_bound_method = topline.is_bound_method
kwonly = topline.argspec.kwonly
kwonly_defaults = topline.argspec.kwonly_defaults or dict()
max_w = int(self.scr.getmaxyx()[1] * 0.6)
self.list_win.erase()
self.list_win.resize(3, max_w)
h, w = self.list_win.getmaxyx()
self.list_win.addstr("\n ")
self.list_win.addstr(
fn, get_colpair(self.config, "name") | curses.A_BOLD
)
self.list_win.addstr(": (", get_colpair(self.config, "name"))
maxh = self.scr.getmaxyx()[0]
if is_bound_method and isinstance(in_arg, int):
in_arg += 1
punctuation_colpair = get_colpair(self.config, "punctuation")
for k, i in enumerate(args):
y, x = self.list_win.getyx()
ln = len(str(i))
kw = None
if kwargs and k + 1 > len(args) - len(kwargs):
kw = repr(kwargs[k - (len(args) - len(kwargs))])
ln += len(kw) + 1
if ln + x >= w:
ty = self.list_win.getbegyx()[0]
if not down and ty > 0:
h += 1
self.list_win.mvwin(ty - 1, 1)
self.list_win.resize(h, w)
elif down and h + r < maxh - ty:
h += 1
self.list_win.resize(h, w)
else:
break
r += 1
self.list_win.addstr("\n\t")
if str(i) == "self" and k == 0:
color = get_colpair(self.config, "name")
else:
color = get_colpair(self.config, "token")
if k == in_arg or i == in_arg:
color |= curses.A_BOLD
self.list_win.addstr(str(i), color)
if kw is not None:
self.list_win.addstr("=", punctuation_colpair)
self.list_win.addstr(kw, get_colpair(self.config, "token"))
if k != len(args) - 1:
self.list_win.addstr(", ", punctuation_colpair)
if _args:
if args:
self.list_win.addstr(", ", punctuation_colpair)
self.list_win.addstr(f"*{_args}", get_colpair(self.config, "token"))
if kwonly:
if not _args:
if args:
self.list_win.addstr(", ", punctuation_colpair)
self.list_win.addstr("*", punctuation_colpair)
marker = object()
for arg in kwonly:
self.list_win.addstr(", ", punctuation_colpair)
color = get_colpair(self.config, "token")
if arg == in_arg:
color |= curses.A_BOLD
self.list_win.addstr(arg, color)
default = kwonly_defaults.get(arg, marker)
if default is not marker:
self.list_win.addstr("=", punctuation_colpair)
self.list_win.addstr(
repr(default), get_colpair(self.config, "token")
)
if _kwargs:
if args or _args or kwonly:
self.list_win.addstr(", ", punctuation_colpair)
self.list_win.addstr(
f"**{_kwargs}", get_colpair(self.config, "token")
)
self.list_win.addstr(")", punctuation_colpair)
return r
def mvc(self, i, refresh=True):
"""This method moves the cursor relatively from the current
position, where:
0 == (right) end of current line
length of current line len(self.s) == beginning of current line
and:
current cursor position + i
for positive values of i the cursor will move towards the beginning
of the line, negative values the opposite."""
y, x = self.scr.getyx()
if self.cpos == 0 and i < 0:
return False
if x == self.ix and y == self.iy and i >= 1:
return False
h, w = gethw()
if x - i < 0:
y -= 1
x = w
if x - i >= w:
y += 1
x = 0 + i
self.cpos += i
self.scr.move(y, x - i)
if refresh:
self.scr.refresh()
return True
def p_key(self, key):
"""Process a keypress"""
if key is None:
return ""
config = self.config
if platform.system() == "Windows":
C_BACK = chr(127)
BACKSP = chr(8)
else:
C_BACK = chr(8)
BACKSP = chr(127)
if key == C_BACK: # C-Backspace (on my computer anyway!)
self.clrtobol()
key = "\n"
# Don't return; let it get handled
if key == chr(27): # Escape Key
return ""
if key in (BACKSP, "KEY_BACKSPACE"):
self.bs()
self.complete()
return ""
elif key in key_dispatch[config.delete_key] and not self.s:
# Delete on empty line exits
self.do_exit = True
return None
elif key in ("KEY_DC",) + key_dispatch[config.delete_key]:
self.delete()
self.complete()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
return ""
elif key in key_dispatch[config.undo_key]: # C-r
n = self.prompt_undo()
if n > 0:
self.undo(n=n)
return ""
elif key in key_dispatch[config.search_key]:
self.search()
return ""
elif key in ("KEY_UP",) + key_dispatch[config.up_one_line_key]:
# Cursor Up/C-p
self.back()
return ""
elif key in ("KEY_DOWN",) + key_dispatch[config.down_one_line_key]:
# Cursor Down/C-n
self.fwd()
return ""
elif key in ("KEY_LEFT", " ^B", chr(2)): # Cursor Left or ^B
self.mvc(1)
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elif key in ("KEY_RIGHT", "^F", chr(6)): # Cursor Right or ^F
self.mvc(-1)
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elif key in ("KEY_HOME", "^A", chr(1)): # home or ^A
self.home()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elif key in ("KEY_END", "^E", chr(5)): # end or ^E
self.end()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elif key in ("KEY_NPAGE",): # page_down
self.hend()
self.print_line(self.s)
elif key in ("KEY_PPAGE",): # page_up
self.hbegin()
self.print_line(self.s)
elif key in key_dispatch[config.cut_to_buffer_key]: # cut to buffer
self.cut_to_buffer()
return ""
elif key in key_dispatch[config.yank_from_buffer_key]:
# yank from buffer
self.yank_from_buffer()
return ""
elif key in key_dispatch[config.clear_word_key]:
self.cut_buffer = self.bs_word()
self.complete()
return ""
elif key in key_dispatch[config.clear_line_key]:
self.clrtobol()
return ""
elif key in key_dispatch[config.clear_screen_key]:
# clear all but current line
self.screen_hist = [self.screen_hist[-1]]
self.highlighted_paren = None
self.redraw()
return ""
elif key in key_dispatch[config.exit_key]:
if not self.s:
self.do_exit = True
return None
else:
return ""
elif key in key_dispatch[config.save_key]:
self.write2file()
return ""
elif key in key_dispatch[config.pastebin_key]:
self.pastebin()
return ""
elif key in key_dispatch[config.copy_clipboard_key]:
self.copy2clipboard()
return ""
elif key in key_dispatch[config.last_output_key]:
page(self.stdout_hist[self.prev_block_finished : -4])
return ""
elif key in key_dispatch[config.show_source_key]:
try:
source = self.get_source_of_current_name()
except repl.SourceNotFound as e:
self.statusbar.message(f"{e}")
else:
if config.highlight_show_source:
source = format(
Python3Lexer().get_tokens(source), TerminalFormatter()
)
page(source)
return ""
elif key in ("\n", "\r", "PADENTER"):
self.lf()
return None
elif key == "\t":
return self.tab()
elif key == "KEY_BTAB":