/
vim.c
2548 lines (2355 loc) · 80 KB
/
vim.c
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
// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "nvim/api/vim.h"
#include "nvim/ascii.h"
#include "nvim/api/private/helpers.h"
#include "nvim/api/private/defs.h"
#include "nvim/api/private/dispatch.h"
#include "nvim/api/buffer.h"
#include "nvim/api/window.h"
#include "nvim/msgpack_rpc/channel.h"
#include "nvim/msgpack_rpc/helpers.h"
#include "nvim/lua/executor.h"
#include "nvim/vim.h"
#include "nvim/buffer.h"
#include "nvim/context.h"
#include "nvim/file_search.h"
#include "nvim/highlight.h"
#include "nvim/window.h"
#include "nvim/types.h"
#include "nvim/ex_cmds2.h"
#include "nvim/ex_docmd.h"
#include "nvim/screen.h"
#include "nvim/memline.h"
#include "nvim/mark.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/popupmnu.h"
#include "nvim/edit.h"
#include "nvim/eval.h"
#include "nvim/eval/typval.h"
#include "nvim/fileio.h"
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/state.h"
#include "nvim/mark_extended.h"
#include "nvim/syntax.h"
#include "nvim/getchar.h"
#include "nvim/os/input.h"
#include "nvim/os/process.h"
#include "nvim/viml/parser/expressions.h"
#include "nvim/viml/parser/parser.h"
#include "nvim/ui.h"
#define LINE_BUFFER_SIZE 4096
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "api/vim.c.generated.h"
#endif
void api_vim_init(void)
FUNC_API_NOEXPORT
{
namespace_ids = map_new(String, handle_T)();
}
void api_vim_free_all_mem(void)
FUNC_API_NOEXPORT
{
String name;
handle_T id;
map_foreach(namespace_ids, name, id, {
(void)id;
xfree(name.data);
})
map_free(String, handle_T)(namespace_ids);
}
/// Executes Vimscript (multiline block of Ex-commands), like anonymous
/// |:source|.
///
/// Unlike |nvim_command()| this function supports heredocs, script-scope (s:),
/// etc.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @see |execute()|
/// @see |nvim_command()|
///
/// @param src Vimscript code
/// @param output Capture and return all (non-error, non-shell |:!|) output
/// @param[out] err Error details (Vim error), if any
/// @return Output (non-error, non-shell |:!|) if `output` is true,
/// else empty string.
String nvim_exec(String src, Boolean output, Error *err)
FUNC_API_SINCE(7)
{
const int save_msg_silent = msg_silent;
garray_T *const save_capture_ga = capture_ga;
garray_T capture_local;
if (output) {
ga_init(&capture_local, 1, 80);
capture_ga = &capture_local;
}
try_start();
msg_silent++;
do_source_str(src.data, "nvim_exec()");
capture_ga = save_capture_ga;
msg_silent = save_msg_silent;
try_end(err);
if (ERROR_SET(err)) {
goto theend;
}
if (output && capture_local.ga_len > 1) {
String s = (String){
.data = capture_local.ga_data,
.size = (size_t)capture_local.ga_len,
};
// redir usually (except :echon) prepends a newline.
if (s.data[0] == '\n') {
memmove(s.data, s.data + 1, s.size - 1);
s.data[s.size - 1] = '\0';
s.size = s.size - 1;
}
return s; // Caller will free the memory.
}
theend:
if (output) {
ga_clear(&capture_local);
}
return (String)STRING_INIT;
}
/// Executes an ex-command.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @see |nvim_exec()|
///
/// @param command Ex-command string
/// @param[out] err Error details (Vim error), if any
void nvim_command(String command, Error *err)
FUNC_API_SINCE(1)
{
try_start();
do_cmdline_cmd(command.data);
try_end(err);
}
/// Gets a highlight definition by name.
///
/// @param name Highlight group name
/// @param rgb Export RGB colors
/// @param[out] err Error details, if any
/// @return Highlight definition map
/// @see nvim_get_hl_by_id
Dictionary nvim_get_hl_by_name(String name, Boolean rgb, Error *err)
FUNC_API_SINCE(3)
{
Dictionary result = ARRAY_DICT_INIT;
int id = syn_name2id((const char_u *)name.data);
if (id == 0) {
api_set_error(err, kErrorTypeException, "Invalid highlight name: %s",
name.data);
return result;
}
result = nvim_get_hl_by_id(id, rgb, err);
return result;
}
/// Gets a highlight definition by id. |hlID()|
///
/// @param hl_id Highlight id as returned by |hlID()|
/// @param rgb Export RGB colors
/// @param[out] err Error details, if any
/// @return Highlight definition map
/// @see nvim_get_hl_by_name
Dictionary nvim_get_hl_by_id(Integer hl_id, Boolean rgb, Error *err)
FUNC_API_SINCE(3)
{
Dictionary dic = ARRAY_DICT_INIT;
if (syn_get_final_id((int)hl_id) == 0) {
api_set_error(err, kErrorTypeException,
"Invalid highlight id: %" PRId64, hl_id);
return dic;
}
int attrcode = syn_id2attr((int)hl_id);
return hl_get_attr_by_id(attrcode, rgb, err);
}
/// Sends input-keys to Nvim, subject to various quirks controlled by `mode`
/// flags. This is a blocking call, unlike |nvim_input()|.
///
/// On execution error: does not fail, but updates v:errmsg.
///
/// @param keys to be typed
/// @param mode behavior flags, see |feedkeys()|
/// @param escape_csi If true, escape K_SPECIAL/CSI bytes in `keys`
/// @see feedkeys()
/// @see vim_strsave_escape_csi
void nvim_feedkeys(String keys, String mode, Boolean escape_csi)
FUNC_API_SINCE(1)
{
bool remap = true;
bool insert = false;
bool typed = false;
bool execute = false;
bool dangerous = false;
for (size_t i = 0; i < mode.size; ++i) {
switch (mode.data[i]) {
case 'n': remap = false; break;
case 'm': remap = true; break;
case 't': typed = true; break;
case 'i': insert = true; break;
case 'x': execute = true; break;
case '!': dangerous = true; break;
}
}
if (keys.size == 0 && !execute) {
return;
}
char *keys_esc;
if (escape_csi) {
// Need to escape K_SPECIAL and CSI before putting the string in the
// typeahead buffer.
keys_esc = (char *)vim_strsave_escape_csi((char_u *)keys.data);
} else {
keys_esc = keys.data;
}
ins_typebuf((char_u *)keys_esc, (remap ? REMAP_YES : REMAP_NONE),
insert ? 0 : typebuf.tb_len, !typed, false);
if (escape_csi) {
xfree(keys_esc);
}
if (vgetc_busy) {
typebuf_was_filled = true;
}
if (execute) {
int save_msg_scroll = msg_scroll;
/* Avoid a 1 second delay when the keys start Insert mode. */
msg_scroll = false;
if (!dangerous) {
ex_normal_busy++;
}
exec_normal(true);
if (!dangerous) {
ex_normal_busy--;
}
msg_scroll |= save_msg_scroll;
}
}
/// Queues raw user-input. Unlike |nvim_feedkeys()|, this uses a low-level
/// input buffer and the call is non-blocking (input is processed
/// asynchronously by the eventloop).
///
/// On execution error: does not fail, but updates v:errmsg.
///
/// @note |keycodes| like <CR> are translated, so "<" is special.
/// To input a literal "<", send <LT>.
///
/// @note For mouse events use |nvim_input_mouse()|. The pseudokey form
/// "<LeftMouse><col,row>" is deprecated since |api-level| 6.
///
/// @param keys to be typed
/// @return Number of bytes actually written (can be fewer than
/// requested if the buffer becomes full).
Integer nvim_input(String keys)
FUNC_API_SINCE(1) FUNC_API_FAST
{
return (Integer)input_enqueue(keys);
}
/// Send mouse event from GUI.
///
/// Non-blocking: does not wait on any result, but queues the event to be
/// processed soon by the event loop.
///
/// @note Currently this doesn't support "scripting" multiple mouse events
/// by calling it multiple times in a loop: the intermediate mouse
/// positions will be ignored. It should be used to implement real-time
/// mouse input in a GUI. The deprecated pseudokey form
/// ("<LeftMouse><col,row>") of |nvim_input()| has the same limitiation.
///
/// @param button Mouse button: one of "left", "right", "middle", "wheel".
/// @param action For ordinary buttons, one of "press", "drag", "release".
/// For the wheel, one of "up", "down", "left", "right".
/// @param modifier String of modifiers each represented by a single char.
/// The same specifiers are used as for a key press, except
/// that the "-" separator is optional, so "C-A-", "c-a"
/// and "CA" can all be used to specify Ctrl+Alt+click.
/// @param grid Grid number if the client uses |ui-multigrid|, else 0.
/// @param row Mouse row-position (zero-based, like redraw events)
/// @param col Mouse column-position (zero-based, like redraw events)
/// @param[out] err Error details, if any
void nvim_input_mouse(String button, String action, String modifier,
Integer grid, Integer row, Integer col, Error *err)
FUNC_API_SINCE(6) FUNC_API_FAST
{
if (button.data == NULL || action.data == NULL) {
goto error;
}
int code = 0;
if (strequal(button.data, "left")) {
code = KE_LEFTMOUSE;
} else if (strequal(button.data, "middle")) {
code = KE_MIDDLEMOUSE;
} else if (strequal(button.data, "right")) {
code = KE_RIGHTMOUSE;
} else if (strequal(button.data, "wheel")) {
code = KE_MOUSEDOWN;
} else {
goto error;
}
if (code == KE_MOUSEDOWN) {
if (strequal(action.data, "down")) {
code = KE_MOUSEUP;
} else if (strequal(action.data, "up")) {
code = KE_MOUSEDOWN;
} else if (strequal(action.data, "left")) {
code = KE_MOUSERIGHT;
} else if (strequal(action.data, "right")) {
code = KE_MOUSELEFT;
} else {
goto error;
}
} else {
if (strequal(action.data, "press")) {
// pass
} else if (strequal(action.data, "drag")) {
code += KE_LEFTDRAG - KE_LEFTMOUSE;
} else if (strequal(action.data, "release")) {
code += KE_LEFTRELEASE - KE_LEFTMOUSE;
} else {
goto error;
}
}
int modmask = 0;
for (size_t i = 0; i < modifier.size; i++) {
char byte = modifier.data[i];
if (byte == '-') {
continue;
}
int mod = name_to_mod_mask(byte);
if (mod == 0) {
api_set_error(err, kErrorTypeValidation,
"invalid modifier %c", byte);
return;
}
modmask |= mod;
}
input_enqueue_mouse(code, (uint8_t)modmask, (int)grid, (int)row, (int)col);
return;
error:
api_set_error(err, kErrorTypeValidation,
"invalid button or action");
}
/// Replaces terminal codes and |keycodes| (<CR>, <Esc>, ...) in a string with
/// the internal representation.
///
/// @param str String to be converted.
/// @param from_part Legacy Vim parameter. Usually true.
/// @param do_lt Also translate <lt>. Ignored if `special` is false.
/// @param special Replace |keycodes|, e.g. <CR> becomes a "\n" char.
/// @see replace_termcodes
/// @see cpoptions
String nvim_replace_termcodes(String str, Boolean from_part, Boolean do_lt,
Boolean special)
FUNC_API_SINCE(1)
{
if (str.size == 0) {
// Empty string
return (String) { .data = NULL, .size = 0 };
}
char *ptr = NULL;
replace_termcodes((char_u *)str.data, str.size, (char_u **)&ptr,
from_part, do_lt, special, CPO_TO_CPO_FLAGS);
return cstr_as_string(ptr);
}
/// @deprecated
/// @see nvim_exec
String nvim_command_output(String command, Error *err)
FUNC_API_SINCE(1)
FUNC_API_DEPRECATED_SINCE(7)
{
return nvim_exec(command, true, err);
}
/// Evaluates a VimL |expression|.
/// Dictionaries and Lists are recursively expanded.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @param expr VimL expression string
/// @param[out] err Error details, if any
/// @return Evaluation result or expanded object
Object nvim_eval(String expr, Error *err)
FUNC_API_SINCE(1)
{
static int recursive = 0; // recursion depth
Object rv = OBJECT_INIT;
TRY_WRAP({
// Initialize `force_abort` and `suppress_errthrow` at the top level.
if (!recursive) {
force_abort = false;
suppress_errthrow = false;
current_exception = NULL;
// `did_emsg` is set by emsg(), which cancels execution.
did_emsg = false;
}
recursive++;
try_start();
typval_T rettv;
int ok = eval0((char_u *)expr.data, &rettv, NULL, true);
if (!try_end(err)) {
if (ok == FAIL) {
// Should never happen, try_end() should get the error. #8371
api_set_error(err, kErrorTypeException, "Failed to evaluate expression");
} else {
rv = vim_to_object(&rettv);
}
}
tv_clear(&rettv);
recursive--;
});
return rv;
}
/// @deprecated Use nvim_exec_lua() instead.
Object nvim_execute_lua(String code, Array args, Error *err)
FUNC_API_SINCE(3)
FUNC_API_DEPRECATED_SINCE(7)
FUNC_API_REMOTE_ONLY
{
return executor_exec_lua_api(code, args, err);
}
/// Execute Lua code. Parameters (if any) are available as `...` inside the
/// chunk. The chunk can return a value.
///
/// Only statements are executed. To evaluate an expression, prefix it
/// with `return`: return my_function(...)
///
/// @param code Lua code to execute
/// @param args Arguments to the code
/// @param[out] err Details of an error encountered while parsing
/// or executing the Lua code.
///
/// @return Return value of Lua code if present or NIL.
Object nvim_exec_lua(String code, Array args, Error *err)
FUNC_API_SINCE(7)
FUNC_API_REMOTE_ONLY
{
return executor_exec_lua_api(code, args, err);
}
/// Calls a VimL function.
///
/// @param fn Function name
/// @param args Function arguments
/// @param self `self` dict, or NULL for non-dict functions
/// @param[out] err Error details, if any
/// @return Result of the function call
static Object _call_function(String fn, Array args, dict_T *self, Error *err)
{
static int recursive = 0; // recursion depth
Object rv = OBJECT_INIT;
if (args.size > MAX_FUNC_ARGS) {
api_set_error(err, kErrorTypeValidation,
"Function called with too many arguments");
return rv;
}
// Convert the arguments in args from Object to typval_T values
typval_T vim_args[MAX_FUNC_ARGS + 1];
size_t i = 0; // also used for freeing the variables
for (; i < args.size; i++) {
if (!object_to_vim(args.items[i], &vim_args[i], err)) {
goto free_vim_args;
}
}
TRY_WRAP({
// Initialize `force_abort` and `suppress_errthrow` at the top level.
if (!recursive) {
force_abort = false;
suppress_errthrow = false;
current_exception = NULL;
// `did_emsg` is set by emsg(), which cancels execution.
did_emsg = false;
}
recursive++;
try_start();
typval_T rettv;
int dummy;
// call_func() retval is deceptive, ignore it. Instead we set `msg_list`
// (see above) to capture abort-causing non-exception errors.
(void)call_func((char_u *)fn.data, (int)fn.size, &rettv, (int)args.size,
vim_args, NULL, curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&dummy, true, NULL, self);
if (!try_end(err)) {
rv = vim_to_object(&rettv);
}
tv_clear(&rettv);
recursive--;
});
free_vim_args:
while (i > 0) {
tv_clear(&vim_args[--i]);
}
return rv;
}
/// Calls a VimL function with the given arguments.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @param fn Function to call
/// @param args Function arguments packed in an Array
/// @param[out] err Error details, if any
/// @return Result of the function call
Object nvim_call_function(String fn, Array args, Error *err)
FUNC_API_SINCE(1)
{
return _call_function(fn, args, NULL, err);
}
/// Calls a VimL |Dictionary-function| with the given arguments.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @param dict Dictionary, or String evaluating to a VimL |self| dict
/// @param fn Name of the function defined on the VimL dict
/// @param args Function arguments packed in an Array
/// @param[out] err Error details, if any
/// @return Result of the function call
Object nvim_call_dict_function(Object dict, String fn, Array args, Error *err)
FUNC_API_SINCE(4)
{
Object rv = OBJECT_INIT;
typval_T rettv;
bool mustfree = false;
switch (dict.type) {
case kObjectTypeString: {
try_start();
if (eval0((char_u *)dict.data.string.data, &rettv, NULL, true) == FAIL) {
api_set_error(err, kErrorTypeException,
"Failed to evaluate dict expression");
}
if (try_end(err)) {
return rv;
}
// Evaluation of the string arg created a new dict or increased the
// refcount of a dict. Not necessary for a RPC dict.
mustfree = true;
break;
}
case kObjectTypeDictionary: {
if (!object_to_vim(dict, &rettv, err)) {
goto end;
}
break;
}
default: {
api_set_error(err, kErrorTypeValidation,
"dict argument type must be String or Dictionary");
return rv;
}
}
dict_T *self_dict = rettv.vval.v_dict;
if (rettv.v_type != VAR_DICT || !self_dict) {
api_set_error(err, kErrorTypeValidation, "dict not found");
goto end;
}
if (fn.data && fn.size > 0 && dict.type != kObjectTypeDictionary) {
dictitem_T *const di = tv_dict_find(self_dict, fn.data, (ptrdiff_t)fn.size);
if (di == NULL) {
api_set_error(err, kErrorTypeValidation, "Not found: %s", fn.data);
goto end;
}
if (di->di_tv.v_type == VAR_PARTIAL) {
api_set_error(err, kErrorTypeValidation,
"partial function not supported");
goto end;
}
if (di->di_tv.v_type != VAR_FUNC) {
api_set_error(err, kErrorTypeValidation, "Not a function: %s", fn.data);
goto end;
}
fn = (String) {
.data = (char *)di->di_tv.vval.v_string,
.size = strlen((char *)di->di_tv.vval.v_string),
};
}
if (!fn.data || fn.size < 1) {
api_set_error(err, kErrorTypeValidation, "Invalid (empty) function name");
goto end;
}
rv = _call_function(fn, args, self_dict, err);
end:
if (mustfree) {
tv_clear(&rettv);
}
return rv;
}
/// Calculates the number of display cells occupied by `text`.
/// <Tab> counts as one cell.
///
/// @param text Some text
/// @param[out] err Error details, if any
/// @return Number of cells
Integer nvim_strwidth(String text, Error *err)
FUNC_API_SINCE(1)
{
if (text.size > INT_MAX) {
api_set_error(err, kErrorTypeValidation, "String is too long");
return 0;
}
return (Integer)mb_string2cells((char_u *)text.data);
}
/// Gets the paths contained in 'runtimepath'.
///
/// @return List of paths
ArrayOf(String) nvim_list_runtime_paths(void)
FUNC_API_SINCE(1)
{
Array rv = ARRAY_DICT_INIT;
char_u *rtp = p_rtp;
if (*rtp == NUL) {
// No paths
return rv;
}
// Count the number of paths in rtp
while (*rtp != NUL) {
if (*rtp == ',') {
rv.size++;
}
rtp++;
}
rv.size++;
// Allocate memory for the copies
rv.items = xmalloc(sizeof(*rv.items) * rv.size);
// Reset the position
rtp = p_rtp;
// Start copying
for (size_t i = 0; i < rv.size; i++) {
rv.items[i].type = kObjectTypeString;
rv.items[i].data.string.data = xmalloc(MAXPATHL);
// Copy the path from 'runtimepath' to rv.items[i]
size_t length = copy_option_part(&rtp,
(char_u *)rv.items[i].data.string.data,
MAXPATHL,
",");
rv.items[i].data.string.size = length;
}
return rv;
}
/// Changes the global working directory.
///
/// @param dir Directory path
/// @param[out] err Error details, if any
void nvim_set_current_dir(String dir, Error *err)
FUNC_API_SINCE(1)
{
if (dir.size >= MAXPATHL) {
api_set_error(err, kErrorTypeValidation, "Directory name is too long");
return;
}
char string[MAXPATHL];
memcpy(string, dir.data, dir.size);
string[dir.size] = NUL;
try_start();
if (vim_chdir((char_u *)string)) {
if (!try_end(err)) {
api_set_error(err, kErrorTypeException, "Failed to change directory");
}
return;
}
post_chdir(kCdScopeGlobal, true);
try_end(err);
}
/// Gets the current line.
///
/// @param[out] err Error details, if any
/// @return Current line string
String nvim_get_current_line(Error *err)
FUNC_API_SINCE(1)
{
return buffer_get_line(curbuf->handle, curwin->w_cursor.lnum - 1, err);
}
/// Sets the current line.
///
/// @param line Line contents
/// @param[out] err Error details, if any
void nvim_set_current_line(String line, Error *err)
FUNC_API_SINCE(1)
{
buffer_set_line(curbuf->handle, curwin->w_cursor.lnum - 1, line, err);
}
/// Deletes the current line.
///
/// @param[out] err Error details, if any
void nvim_del_current_line(Error *err)
FUNC_API_SINCE(1)
{
buffer_del_line(curbuf->handle, curwin->w_cursor.lnum - 1, err);
}
/// Gets a global (g:) variable.
///
/// @param name Variable name
/// @param[out] err Error details, if any
/// @return Variable value
Object nvim_get_var(String name, Error *err)
FUNC_API_SINCE(1)
{
return dict_get_value(&globvardict, name, err);
}
/// Sets a global (g:) variable.
///
/// @param name Variable name
/// @param value Variable value
/// @param[out] err Error details, if any
void nvim_set_var(String name, Object value, Error *err)
FUNC_API_SINCE(1)
{
dict_set_var(&globvardict, name, value, false, false, err);
}
/// Removes a global (g:) variable.
///
/// @param name Variable name
/// @param[out] err Error details, if any
void nvim_del_var(String name, Error *err)
FUNC_API_SINCE(1)
{
dict_set_var(&globvardict, name, NIL, true, false, err);
}
/// @deprecated
/// @see nvim_set_var
/// @warning May return nil if there was no previous value
/// OR if previous value was `v:null`.
/// @return Old value or nil if there was no previous value.
Object vim_set_var(String name, Object value, Error *err)
{
return dict_set_var(&globvardict, name, value, false, true, err);
}
/// @deprecated
/// @see nvim_del_var
Object vim_del_var(String name, Error *err)
{
return dict_set_var(&globvardict, name, NIL, true, true, err);
}
/// Gets a v: variable.
///
/// @param name Variable name
/// @param[out] err Error details, if any
/// @return Variable value
Object nvim_get_vvar(String name, Error *err)
FUNC_API_SINCE(1)
{
return dict_get_value(&vimvardict, name, err);
}
/// Sets a v: variable, if it is not readonly.
///
/// @param name Variable name
/// @param value Variable value
/// @param[out] err Error details, if any
void nvim_set_vvar(String name, Object value, Error *err)
FUNC_API_SINCE(6)
{
dict_set_var(&vimvardict, name, value, false, false, err);
}
/// Gets an option value string.
///
/// @param name Option name
/// @param[out] err Error details, if any
/// @return Option value (global)
Object nvim_get_option(String name, Error *err)
FUNC_API_SINCE(1)
{
return get_option_from(NULL, SREQ_GLOBAL, name, err);
}
/// Sets an option value.
///
/// @param channel_id
/// @param name Option name
/// @param value New option value
/// @param[out] err Error details, if any
void nvim_set_option(uint64_t channel_id, String name, Object value, Error *err)
FUNC_API_SINCE(1)
{
set_option_to(channel_id, NULL, SREQ_GLOBAL, name, value, err);
}
/// Writes a message to the Vim output buffer. Does not append "\n", the
/// message is buffered (won't display) until a linefeed is written.
///
/// @param str Message
void nvim_out_write(String str)
FUNC_API_SINCE(1)
{
write_msg(str, false);
}
/// Writes a message to the Vim error buffer. Does not append "\n", the
/// message is buffered (won't display) until a linefeed is written.
///
/// @param str Message
void nvim_err_write(String str)
FUNC_API_SINCE(1)
{
write_msg(str, true);
}
/// Writes a message to the Vim error buffer. Appends "\n", so the buffer is
/// flushed (and displayed).
///
/// @param str Message
/// @see nvim_err_write()
void nvim_err_writeln(String str)
FUNC_API_SINCE(1)
{
nvim_err_write(str);
nvim_err_write((String) { .data = "\n", .size = 1 });
}
/// Gets the current list of buffer handles
///
/// Includes unlisted (unloaded/deleted) buffers, like `:ls!`.
/// Use |nvim_buf_is_loaded()| to check if a buffer is loaded.
///
/// @return List of buffer handles
ArrayOf(Buffer) nvim_list_bufs(void)
FUNC_API_SINCE(1)
{
Array rv = ARRAY_DICT_INIT;
FOR_ALL_BUFFERS(b) {
rv.size++;
}
rv.items = xmalloc(sizeof(Object) * rv.size);
size_t i = 0;
FOR_ALL_BUFFERS(b) {
rv.items[i++] = BUFFER_OBJ(b->handle);
}
return rv;
}
/// Gets the current buffer.
///
/// @return Buffer handle
Buffer nvim_get_current_buf(void)
FUNC_API_SINCE(1)
{
return curbuf->handle;
}
/// Sets the current buffer.
///
/// @param buffer Buffer handle
/// @param[out] err Error details, if any
void nvim_set_current_buf(Buffer buffer, Error *err)
FUNC_API_SINCE(1)
{
buf_T *buf = find_buffer_by_handle(buffer, err);
if (!buf) {
return;
}
try_start();
int result = do_buffer(DOBUF_GOTO, DOBUF_FIRST, FORWARD, buf->b_fnum, 0);
if (!try_end(err) && result == FAIL) {
api_set_error(err,
kErrorTypeException,
"Failed to switch to buffer %d",
buffer);
}
}
/// Gets the current list of window handles.
///
/// @return List of window handles
ArrayOf(Window) nvim_list_wins(void)
FUNC_API_SINCE(1)
{
Array rv = ARRAY_DICT_INIT;
FOR_ALL_TAB_WINDOWS(tp, wp) {
rv.size++;
}
rv.items = xmalloc(sizeof(Object) * rv.size);
size_t i = 0;
FOR_ALL_TAB_WINDOWS(tp, wp) {
rv.items[i++] = WINDOW_OBJ(wp->handle);
}
return rv;
}
/// Gets the current window.
///
/// @return Window handle
Window nvim_get_current_win(void)
FUNC_API_SINCE(1)
{
return curwin->handle;
}
/// Sets the current window.
///
/// @param window Window handle
/// @param[out] err Error details, if any
void nvim_set_current_win(Window window, Error *err)
FUNC_API_SINCE(1)
{
win_T *win = find_window_by_handle(window, err);
if (!win) {
return;
}
try_start();
goto_tabpage_win(win_find_tabpage(win), win);
if (!try_end(err) && win != curwin) {
api_set_error(err,
kErrorTypeException,
"Failed to switch to window %d",
window);
}
}
/// Creates a new, empty, unnamed buffer.
///
/// @param listed Sets 'buflisted'
/// @param scratch Creates a "throwaway" |scratch-buffer| for temporary work
/// (always 'nomodified')
/// @param[out] err Error details, if any
/// @return Buffer handle, or 0 on error
///
/// @see buf_open_scratch
Buffer nvim_create_buf(Boolean listed, Boolean scratch, Error *err)
FUNC_API_SINCE(6)