dte test coverage


Directory: ./
File: src/commands.c
Date: 2026-01-09 16:07:09
Coverage Exec Excl Total
Lines: 77.1% 1190 1 1545
Functions: 92.6% 100 0 108
Branches: 56.0% 501 0 895

Line Branch Exec Source
1 #include <errno.h>
2 #include <fcntl.h>
3 #include <glob.h>
4 #include <signal.h>
5 #include <stdlib.h>
6 #include <string.h>
7 #include <sys/stat.h>
8 #include <unistd.h>
9 #include "commands.h"
10 #include "bind.h"
11 #include "bookmark.h"
12 #include "buffer.h"
13 #include "case.h"
14 #include "change.h"
15 #include "cmdline.h"
16 #include "command/alias.h"
17 #include "command/args.h"
18 #include "command/error.h"
19 #include "command/macro.h"
20 #include "compiler.h"
21 #include "config.h"
22 #include "convert.h"
23 #include "copy.h"
24 #include "delete.h"
25 #include "editor.h"
26 #include "encoding.h"
27 #include "exec.h"
28 #include "file-option.h"
29 #include "filetype.h"
30 #include "frame.h"
31 #include "history.h"
32 #include "insert.h"
33 #include "join.h"
34 #include "load-save.h"
35 #include "lock.h"
36 #include "mode.h"
37 #include "move.h"
38 #include "msg.h"
39 #include "regexp.h"
40 #include "replace.h"
41 #include "search.h"
42 #include "selection.h"
43 #include "shift.h"
44 #include "show.h"
45 #include "spawn.h"
46 #include "syntax/color.h"
47 #include "syntax/syntax.h"
48 #include "tag.h"
49 #include "terminal/cursor.h"
50 #include "terminal/mode.h"
51 #include "terminal/osc52.h"
52 #include "terminal/style.h"
53 #include "terminal/terminal.h"
54 #include "ui.h"
55 #include "util/arith.h"
56 #include "util/array.h"
57 #include "util/ascii.h"
58 #include "util/bsearch.h"
59 #include "util/debug.h"
60 #include "util/errorcode.h"
61 #include "util/intern.h"
62 #include "util/log.h"
63 #include "util/numtostr.h"
64 #include "util/path.h"
65 #include "util/str-array.h"
66 #include "util/str-util.h"
67 #include "util/strtonum.h"
68 #include "util/time-util.h"
69 #include "util/xmalloc.h"
70 #include "util/xsnprintf.h"
71 #include "util/xstring.h"
72 #include "view.h"
73 #include "window.h"
74 #include "wrap.h"
75
76 8389 static bool has_flag(const CommandArgs *a, unsigned char flag)
77 {
78 8389 return cmdargs_has_flag(a, flag);
79 }
80
81 134 static void handle_selection_flags(View *view, const CommandArgs *a)
82 {
83 134 CommandFlagSet c = has_flag(a, 'c');
84 134 CommandFlagSet l = has_flag(a, 'l');
85
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134 SelectionType sel = l ? SELECT_LINES : (c ? SELECT_CHARS : SELECT_NONE);
86 134 view_set_selection_type(view, MAX(sel, view->select_mode));
87 134 }
88
89 217 static bool cmd_alias(EditorState *e, const CommandArgs *a)
90 {
91 217 const char *const name = a->args[0];
92 217 const char *const cmd = a->args[1];
93 217 ErrorBuffer *ebuf = &e->err;
94
95
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217 if (unlikely(name[0] == '\0')) {
96 1 return error_msg(ebuf, "Empty alias name not allowed");
97 }
98
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216 if (unlikely(name[0] == '-')) {
99 // Disallowing this simplifies auto-completion for "alias "
100 1 return error_msg(ebuf, "Alias name cannot begin with '-'");
101 }
102
103
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1861 for (size_t i = 0; name[i]; i++) {
104 1647 unsigned char c = name[i];
105
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1647 if (unlikely(!(is_word_byte(c) || c == '-' || c == '?' || c == '!'))) {
106 1 return error_msg(ebuf, "Invalid byte in alias name: %c (0x%02hhX)", c, c);
107 }
108 }
109
110
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214 if (unlikely(find_normal_command(name))) {
111 1 return error_msg(ebuf, "Can't replace existing command %s with an alias", name);
112 }
113
114
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213 if (likely(cmd)) {
115 211 add_alias(&e->aliases, name, cmd);
116 } else {
117 2 remove_alias(&e->aliases, name);
118 }
119
120 return true;
121 }
122
123 1623 static bool cmd_bind(EditorState *e, const CommandArgs *a)
124 {
125 1623 const char *keystr = a->args[a->nr_flag_args];
126 1623 const char *cmd = a->args[a->nr_flag_args + 1];
127 1623 KeyCode key = keycode_from_str(keystr);
128
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1623 if (unlikely(key == KEY_NONE)) {
129
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1 if (has_flag(a, 'q')) {
130 LOG_INFO("bind -q: dropped invalid key string: %s", keystr);
131 return false;
132 }
133 1 return error_msg(&e->err, "invalid key string: %s", keystr);
134 }
135
136 1622 ModeHandler *modes[10];
137 1622 size_t nmodes = 0;
138 1622 static_assert(ARRAYLEN(modes) <= ARRAYLEN(a->flags));
139
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1622 if (has_flag(a, 'n')) {
140 modes[nmodes++] = e->normal_mode;
141 }
142
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1622 if (has_flag(a, 'c')) {
143 351 modes[nmodes++] = e->command_mode;
144 }
145
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1622 if (has_flag(a, 's')) {
146 360 modes[nmodes++] = e->search_mode;
147 }
148
149
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1622 if (unlikely(nmodes + a->nr_flag_args > ARRAYLEN(modes))) {
150 // This is already prevented by the ARGERR_TOO_MANY_OPTIONS check
151 // in do_parse_args(), but since that's only incidental, it's still
152 // checked here
153 return error_msg(&e->err, "too many modes specified");
154 }
155
156 // Gather pointers to modes specified via `-T modename`. This is done
157 // separately from adding/removing bindings, partly so that either all
158 // modes are processed or none are (if the error below is triggered).
159
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1622 for (size_t i = 0, n = a->nr_flag_args; i < n; i++) {
160 1 const char *name = a->args[i];
161 1 ModeHandler *mode = get_mode_handler(&e->modes, name);
162
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1 if (unlikely(!mode)) {
163 1 return error_msg(&e->err, "can't bind key in unknown mode '%s'", name);
164 }
165 modes[nmodes++] = mode;
166 }
167
168
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1621 if (nmodes == 0) {
169 // No [-cnsT] flags used; default to normal mode
170 1243 modes[nmodes++] = e->normal_mode;
171 }
172
173
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1621 if (!cmd) {
174 for (size_t i = 0; i < nmodes; i++) {
175 remove_binding(&modes[i]->key_bindings, key);
176 }
177 return true;
178 }
179
180 1621 CommandRunner runner = cmdrunner(e, NULL);
181
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3575 for (size_t i = 0; i < nmodes; i++) {
182 1954 runner.cmds = modes[i]->cmds;
183 1954 CachedCommand *cc = cached_command_new(&runner, cmd);
184 1954 add_binding(&modes[i]->key_bindings, key, cc);
185 }
186
187 return true;
188 }
189
190 4 static bool cmd_bof(EditorState *e, const CommandArgs *a)
191 {
192 4 handle_selection_flags(e->view, a);
193 4 move_bof(e->view);
194 4 return true;
195 }
196
197 7 static bool cmd_bol(EditorState *e, const CommandArgs *a)
198 {
199 7 SmartBolType type = BOL_SIMPLE;
200
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7 switch (cmdargs_pick_winning_flag(a, "rst")) {
201 case 'r': type = BOL_TOGGLE_LR; break;
202 case 's': type = BOL_INDENT; break;
203 case 't': type = BOL_TOGGLE_RL; break;
204 }
205
206 7 handle_selection_flags(e->view, a);
207 7 move_bol(e->view, type);
208 7 return true;
209 }
210
211 1 static bool cmd_bolsf(EditorState *e, const CommandArgs *a)
212 {
213 1 BUG_ON(a->nr_args);
214 1 View *view = e->view;
215 1 handle_selection_flags(view, a);
216
217
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1 if (!block_iter_bol(&view->cursor)) {
218 1 long margin = window_get_scroll_margin(e->window);
219 1 long top = view->vy + margin;
220
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1 if (view->cy > top) {
221 1 move_up(view, view->cy - top);
222 } else {
223 block_iter_bof(&view->cursor);
224 }
225 }
226
227 1 view_reset_preferred_x(view);
228 1 return true;
229 }
230
231 1 static bool cmd_bookmark(EditorState *e, const CommandArgs *a)
232 {
233 1 PointerArray *bookmarks = &e->bookmarks;
234 1 ErrorBuffer *ebuf = &e->err;
235 1 bool verbose = has_flag(a, 'v');
236
237
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1 if (has_flag(a, 'r')) {
238 size_t popped = bookmark_pop(bookmarks, e->window);
239 if (!verbose || popped == 0) {
240 return verbose ? info_msg(ebuf, "no bookmarks to pop") : true;
241 }
242 return info_msg (
243 ebuf, "popped %zu bookmark%s (%zu remaining)",
244 popped, (popped == 1) ? "" : "s", bookmarks->count
245 );
246 }
247
248 1 FileLocation *loc = get_current_file_location(e->view);
249 1 size_t idx = bookmark_push(bookmarks, loc);
250
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1 if (!verbose) {
251 return true;
252 }
253
254 return info_msg (
255 ebuf, "pushed bookmark #%zu at position %lu,%lu (%s%s)",
256 idx, loc->line, loc->column,
257 loc->filename ? "" : "unsaved buffer #",
258 loc->filename ? loc->filename : ulong_to_str(loc->buffer_id)
259 );
260 }
261
262 2 static bool cmd_case(EditorState *e, const CommandArgs *a)
263 {
264 2 char mode = cmdargs_pick_winning_flag(a, "lu");
265
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2 change_case(e->view, mode ? mode : 't');
266 2 return true;
267 }
268
269 4 static void mark_tabbar_changed(Window *window, void* UNUSED_ARG(data))
270 {
271 4 window->update_tabbar = true;
272 4 }
273
274 6 static bool cmd_cd(EditorState *e, const CommandArgs *a)
275 {
276 6 const char *dir = a->args[0];
277 6 ErrorBuffer *ebuf = &e->err;
278
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6 if (unlikely(dir[0] == '\0')) {
279 1 return error_msg(ebuf, "directory argument cannot be empty");
280 }
281
282
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5 if (streq(dir, "-")) {
283 2 dir = xgetenv("OLDPWD");
284
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2 if (!dir) {
285 return error_msg(ebuf, "OLDPWD not set");
286 }
287 }
288
289 5 char buf[8192];
290 5 const char *cwd = getcwd(buf, sizeof(buf));
291
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5 if (chdir(dir) != 0) {
292 1 return error_msg_errno(ebuf, "changing directory failed");
293 }
294
295
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4 if (likely(cwd)) {
296 4 int r = setenv("OLDPWD", cwd, 1);
297
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4 if (unlikely(r != 0)) {
298 LOG_WARNING("failed to set OLDPWD: %s", strerror(errno));
299 }
300 }
301
302 4 cwd = getcwd(buf, sizeof(buf));
303
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4 if (likely(cwd)) {
304 4 int r = setenv("PWD", cwd, 1);
305
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4 if (unlikely(r != 0)) {
306 LOG_WARNING("failed to set PWD: %s", strerror(errno));
307 }
308 }
309
310
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140 for (size_t i = 0, n = e->buffers.count; i < n; i++) {
311 136 Buffer *buffer = e->buffers.ptrs[i];
312 136 buffer_update_short_filename_cwd(buffer, e->home_dir, cwd);
313 }
314
315 4 frame_for_each_window(e->root_frame, mark_tabbar_changed, NULL);
316 4 e->screen_update |= UPDATE_TERM_TITLE;
317
318 4 bool verbose = has_flag(a, 'v');
319
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4 return !verbose || info_msg(ebuf, "changed directory to: %s", cwd ? cwd : dir);
320 }
321
322 static bool cmd_center_view(EditorState *e, const CommandArgs *a)
323 {
324 BUG_ON(a->nr_args);
325 e->view->force_center = true;
326 return true;
327 }
328
329 4 static bool cmd_clear(EditorState *e, const CommandArgs *a)
330 {
331 4 char iflag = cmdargs_pick_winning_flag(a, "iI");
332
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4 bool auto_indent = iflag ? (iflag == 'i') : e->buffer->options.auto_indent;
333 4 clear_lines(e->view, auto_indent);
334 4 return true;
335 }
336
337 26 static bool cmd_close(EditorState *e, const CommandArgs *a)
338 {
339 26 bool force = has_flag(a, 'f');
340
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26 if (!force && !view_can_close(e->view)) {
341 2 bool prompt = has_flag(a, 'p');
342
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2 if (!prompt) {
343 1 return error_msg (
344 &e->err,
345 "The buffer is modified; "
346 "save or run 'close -f' to close without saving"
347 );
348 }
349
350
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1 if (unlikely(e->flags & EFLAG_HEADLESS)) {
351 1 return error_msg(&e->err, "-p flag unavailable in headless mode");
352 }
353
354 static const char str[] = "Close without saving changes? [y/N]";
355 if (dialog_prompt(e, str, "ny") != 'y') {
356 return false;
357 }
358 }
359
360 24 bool allow_quit = has_flag(a, 'q');
361
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24 if (allow_quit && e->buffers.count == 1 && e->root_frame->frames.count <= 1) {
362 e->status = EDITOR_EXIT_OK;
363 return true;
364 }
365
366 24 bool allow_wclose = has_flag(a, 'w');
367
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24 if (allow_wclose && e->window->views.count <= 1) {
368 window_close(e->window);
369 return true;
370 }
371
372 24 window_close_current_view(e->window);
373 24 set_view(e->window->view);
374 24 return true;
375 }
376
377 static bool cmd_command(EditorState *e, const CommandArgs *a)
378 {
379 const char *text = a->args[0];
380 push_input_mode(e, e->command_mode);
381 if (text) {
382 cmdline_set_text(&e->cmdline, text);
383 }
384 return true;
385 }
386
387 1 static bool cmd_compile(EditorState *e, const CommandArgs *a)
388 {
389 1 Compiler *compiler = find_compiler(&e->compilers, a->args[0]);
390
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1 if (unlikely(!compiler)) {
391 1 return error_msg(&e->err, "No such error parser %s", a->args[0]);
392 }
393
394 bool quiet = has_flag(a, 's');
395 if ((e->flags & EFLAG_HEADLESS) && !quiet) {
396 LOG_INFO("automatically added -s flag to compile command (headless mode)");
397 quiet = true;
398 }
399
400 SpawnContext ctx = {
401 .argv = (const char **)a->args + 1,
402 .ebuf = &e->err,
403 .quiet = quiet,
404 };
405
406 char abc = cmdargs_pick_winning_flag(a, "ABC");
407 size_t idx = abc ? abc - 'A' : e->options.msg_compile;
408 MessageList *messages = &e->messages[idx];
409 clear_messages(messages);
410
411 yield_terminal(e, quiet);
412 bool prompt = has_flag(a, 'p');
413 bool read_stdout = has_flag(a, '1');
414 bool spawned = spawn_compiler(&ctx, compiler, messages, read_stdout);
415 resume_terminal(e, quiet, spawned && prompt);
416
417 activate_current_message_save(messages, &e->bookmarks, e->view);
418 return spawned;
419 }
420
421 4 static bool cmd_copy(EditorState *e, const CommandArgs *a)
422 {
423 4 static const FlagMapping map[] = {
424 {'b', TCOPY_CLIPBOARD},
425 {'p', TCOPY_PRIMARY},
426 };
427
428 4 Terminal *term = &e->terminal;
429 4 TermCopyFlags flags = cmdargs_convert_flags(a, map, ARRAYLEN(map));
430
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4 bool internal = has_flag(a, 'i') || flags == 0;
431 bool osc52 = flags && (term->features & TFLAG_OSC52_COPY);
432 4 const char *text = a->args[0];
433
434
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4 if (text) {
435 size_t len = strlen(text);
436 if (internal) {
437 record_copy(&e->clipboard, xstrdup(text), len, false);
438 }
439 if (osc52) {
440 if (!term_osc52_copy(&term->obuf, string_view(text, len), flags)) {
441 error_msg_errno(&e->err, "OSC 52 copy failed");
442 }
443 }
444 return true;
445 }
446
447 4 const View *view = e->view;
448 4 BlockIter bi;
449 4 size_t size;
450 4 bool line_copy;
451
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4 if (view->selection) {
452 SelectionInfo info = init_selection(view);
453 size = info.eo - info.so;
454 bi = info.si;
455 line_copy = (view->selection == SELECT_LINES);
456 } else {
457 4 bi = view->cursor;
458 4 block_iter_bol(&bi);
459 4 BlockIter tmp = bi;
460 4 size = block_iter_eat_line(&tmp);
461 4 line_copy = true;
462 }
463
464
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4 if (unlikely(size == 0)) {
465 return true;
466 }
467
468 4 char *buf = block_iter_get_bytes(&bi, size);
469
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4 if (osc52) {
470 if (!term_osc52_copy(&term->obuf, string_view(buf, size), flags)) {
471 error_msg_errno(&e->err, "OSC 52 copy failed");
472 }
473 }
474
475
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4 if (internal) {
476 // Clipboard takes ownership of `buf`
477 4 record_copy(&e->clipboard, buf, size, line_copy);
478 } else {
479 free(buf);
480 }
481
482
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8 return has_flag(a, 'k') || unselect(e->view);
483 }
484
485 3 static bool cmd_cursor(EditorState *e, const CommandArgs *a)
486 {
487
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3 if (unlikely(a->nr_args == 0)) {
488 // Reset all cursor styles
489 for (CursorInputMode m = 0; m < ARRAYLEN(e->cursor_styles); m++) {
490 e->cursor_styles[m] = get_default_cursor_style(m);
491 }
492 e->screen_update |= UPDATE_CURSOR_STYLE;
493 return true;
494 }
495
496 3 CursorInputMode mode = cursor_mode_from_str(a->args[0]);
497
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3 if (unlikely(mode >= NR_CURSOR_MODES)) {
498 1 return error_msg(&e->err, "invalid mode argument: %s", a->args[0]);
499 }
500
501 2 TermCursorStyle style = get_default_cursor_style(mode);
502
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2 if (a->nr_args >= 2) {
503 2 style.type = cursor_type_from_str(a->args[1]);
504
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2 if (unlikely(style.type == CURSOR_INVALID)) {
505 1 return error_msg(&e->err, "invalid cursor type: %s", a->args[1]);
506 }
507 }
508
509
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1 if (a->nr_args >= 3) {
510 1 style.color = cursor_color_from_str(a->args[2]);
511
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1 if (unlikely(style.color == COLOR_INVALID)) {
512 1 return error_msg(&e->err, "invalid cursor color: %s", a->args[2]);
513 }
514 }
515
516 e->cursor_styles[mode] = style;
517 e->screen_update |= UPDATE_CURSOR_STYLE;
518 return true;
519 }
520
521 2 static bool cmd_cut(EditorState *e, const CommandArgs *a)
522 {
523 2 BUG_ON(a->nr_args);
524 2 View *view = e->view;
525 2 long preferred_x = view_get_preferred_x(view);
526 2 size_t size;
527 2 bool line_copy;
528
529
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2 if (view->selection) {
530 1 line_copy = (view->selection == SELECT_LINES);
531 1 size = prepare_selection(view);
532 1 unselect(view);
533 } else {
534 1 line_copy = true;
535 1 block_iter_bol(&view->cursor);
536 1 BlockIter tmp = view->cursor;
537 1 size = block_iter_eat_line(&tmp);
538 }
539
540
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2 if (size == 0) {
541 return true;
542 }
543
544 2 char *buf = block_iter_get_bytes(&view->cursor, size);
545 2 record_copy(&e->clipboard, buf, size, line_copy);
546 2 buffer_delete_bytes(view, size);
547
548
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2 if (line_copy) {
549 1 move_to_preferred_x(view, preferred_x);
550 }
551
552 return true;
553 }
554
555 9 static bool cmd_def_mode(EditorState *e, const CommandArgs *a)
556 {
557 9 ErrorBuffer *ebuf = &e->err;
558 9 const char *name = a->args[0];
559
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9 if (name[0] == '\0' || name[0] == '-') {
560 2 return error_msg(ebuf, "mode name can't be empty or start with '-'");
561 }
562
563 7 HashMap *modes = &e->modes;
564
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7 if (hashmap_get(modes, name)) {
565 4 return error_msg(ebuf, "mode '%s' already exists", name);
566 }
567
568 3 PointerArray ftmodes = PTR_ARRAY_INIT;
569
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3 for (size_t i = 1, n = a->nr_args; i < n; i++) {
570 2 const char *ftname = a->args[i];
571 2 ModeHandler *mode = get_mode_handler(modes, ftname);
572
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2 if (unlikely(!mode)) {
573 1 ptr_array_free_array(&ftmodes);
574 1 return error_msg(ebuf, "unknown fallthrough mode '%s'", ftname);
575 }
576
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1 if (unlikely(mode->cmds != &normal_commands)) {
577 // TODO: Support "command" and "search" as fallback modes?
578 // If implemented, all involved modes need to use the same
579 // `CommandSet`.
580 1 ptr_array_free_array(&ftmodes);
581 1 return error_msg(ebuf, "unable to use '%s' as fall-through mode", ftname);
582 }
583 ptr_array_append(&ftmodes, mode);
584 }
585
586 1 static const FlagMapping map[] = {
587 {'u', MHF_NO_TEXT_INSERTION},
588 {'U', MHF_NO_TEXT_INSERTION | MHF_NO_TEXT_INSERTION_RECURSIVE},
589 };
590
591 1 ModeHandler *mode = new_mode(modes, xstrdup(name), &normal_commands);
592 1 mode->flags = cmdargs_convert_flags(a, map, ARRAYLEN(map));
593 1 mode->fallthrough_modes = ftmodes;
594 1 return true;
595 }
596
597 9 static bool cmd_delete(EditorState *e, const CommandArgs *a)
598 {
599 9 BUG_ON(a->nr_args);
600 9 delete_ch(e->view);
601 9 return true;
602 }
603
604 2 static bool cmd_delete_eol(EditorState *e, const CommandArgs *a)
605 {
606 2 View *view = e->view;
607
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2 if (view->selection) {
608 // TODO: return false?
609 return true;
610 }
611
612 2 bool delete_newline_if_at_eol = has_flag(a, 'n');
613 2 BlockIter bi = view->cursor;
614
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2 if (delete_newline_if_at_eol) {
615 CodePoint ch;
616 if (block_iter_get_char(&view->cursor, &ch) == 1 && ch == '\n') {
617 delete_ch(view);
618 return true;
619 }
620 }
621
622 2 buffer_delete_bytes(view, block_iter_eol(&bi));
623 2 return true;
624 }
625
626 static bool cmd_delete_line(EditorState *e, const CommandArgs *a)
627 {
628 BUG_ON(a->nr_args);
629 View *view = e->view;
630 long x = view_get_preferred_x(view);
631 bool whole_lines = true;
632 size_t del_count;
633
634 if (view->selection) {
635 whole_lines = !has_flag(a, 'S');
636 view->selection = whole_lines ? SELECT_LINES : view->selection;
637 del_count = prepare_selection(view);
638 unselect(view);
639 } else {
640 block_iter_bol(&view->cursor);
641 BlockIter tmp = view->cursor;
642 del_count = block_iter_eat_line(&tmp);
643 }
644
645 buffer_delete_bytes(view, del_count);
646 if (whole_lines) {
647 move_to_preferred_x(view, x);
648 }
649
650 return true;
651 }
652
653 1 static bool cmd_delete_word(EditorState *e, const CommandArgs *a)
654 {
655 1 bool skip_non_word = has_flag(a, 's');
656 1 BlockIter bi = e->view->cursor;
657 1 buffer_delete_bytes(e->view, word_fwd(&bi, skip_non_word));
658 1 return true;
659 }
660
661 14 static bool cmd_down(EditorState *e, const CommandArgs *a)
662 {
663 14 handle_selection_flags(e->view, a);
664 14 move_down(e->view, 1);
665 14 return true;
666 }
667
668 6 static bool cmd_eof(EditorState *e, const CommandArgs *a)
669 {
670 6 handle_selection_flags(e->view, a);
671 6 move_eof(e->view);
672 6 return true;
673 }
674
675 6 static bool cmd_eol(EditorState *e, const CommandArgs *a)
676 {
677 6 handle_selection_flags(e->view, a);
678 6 move_eol(e->view);
679 6 return true;
680 }
681
682 1 static bool cmd_eolsf(EditorState *e, const CommandArgs *a)
683 {
684 1 BUG_ON(a->nr_args);
685 1 View *view = e->view;
686 1 handle_selection_flags(view, a);
687
688
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1 if (!block_iter_eol(&view->cursor)) {
689 1 Window *window = e->window;
690 1 long margin = window_get_scroll_margin(window);
691 1 long bottom = view->vy + window->edit_h - 1 - margin;
692
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1 if (view->cy < bottom) {
693 move_down(view, bottom - view->cy);
694 } else {
695 1 block_iter_eof(&view->cursor);
696 }
697 }
698
699 1 view_reset_preferred_x(view);
700 1 return true;
701 }
702
703 6 static bool cmd_erase(EditorState *e, const CommandArgs *a)
704 {
705 6 BUG_ON(a->nr_args);
706 6 erase(e->view);
707 6 return true;
708 }
709
710 1 static bool cmd_erase_bol(EditorState *e, const CommandArgs *a)
711 {
712 1 BUG_ON(a->nr_args);
713 1 buffer_erase_bytes(e->view, block_iter_bol(&e->view->cursor));
714 1 return true;
715 }
716
717 2 static bool cmd_erase_word(EditorState *e, const CommandArgs *a)
718 {
719 2 View *view = e->view;
720 2 bool skip_non_word = has_flag(a, 's');
721 2 buffer_erase_bytes(view, word_bwd(&view->cursor, skip_non_word));
722 2 return true;
723 }
724
725 263 static bool cmd_errorfmt(EditorState *e, const CommandArgs *a)
726 {
727 263 const size_t nr_args = a->nr_args;
728 263 BUG_ON(nr_args == 0 || nr_args > 2 + ERRORFMT_CAPTURE_MAX);
729 263 const char *name = a->args[0];
730
731
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263 if (nr_args == 1) {
732 18 remove_compiler(&e->compilers, name);
733 18 return true;
734 }
735
736
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245 if (has_flag(a, 'c')) {
737 9 Compiler *c = find_compiler(&e->compilers, name);
738
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9 if (c) {
739 ptr_array_clear(&c->error_formats, FREE_FUNC(free_error_format));
740 }
741 }
742
743 245 static_assert(NR_ERRFMT_INDICES == 4);
744 245 size_t max_idx = 0;
745 245 int8_t indices[NR_ERRFMT_INDICES] = {
746 [ERRFMT_FILE] = -1,
747 [ERRFMT_LINE] = -1,
748 [ERRFMT_COLUMN] = -1,
749 [ERRFMT_MESSAGE] = 0,
750 };
751
752
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535 for (size_t i = 0, n = nr_args - 2; i < n; i++) {
753 291 char *cap_name = a->args[i + 2];
754
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291 if (streq(cap_name, "_")) {
755 continue;
756 }
757 291 ssize_t cap_idx = errorfmt_capture_name_to_index(cap_name);
758
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291 if (unlikely(cap_idx < 0)) {
759 1 return error_msg(&e->err, "unknown substring name %s", cap_name);
760 }
761 290 max_idx = i + 1;
762 290 indices[cap_idx] = max_idx;
763 }
764
765 244 const char *pattern = a->args[1];
766 244 regex_t re;
767
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244 if (unlikely(!regexp_compile(&e->err, &re, pattern, 0))) {
768 return false;
769 }
770
771
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244 if (unlikely(max_idx > re.re_nsub)) {
772 1 regfree(&re);
773 1 return error_msg (
774 &e->err, "expected %zu subexpressions in regex, but found %zu: '%s'",
775 max_idx, re.re_nsub, pattern
776 );
777 }
778
779 243 bool ignore = has_flag(a, 'i');
780 243 add_error_fmt(&e->compilers, name, pattern, &re, indices, ignore);
781 243 return true;
782 }
783
784 18 static bool cmd_exec(EditorState *e, const CommandArgs *a)
785 {
786 18 ExecAction actions[3] = {EXEC_TTY, EXEC_TTY, EXEC_TTY};
787 18 ExecFlags exec_flags = 0;
788 18 bool lflag = false;
789 18 bool move_after_insert = false;
790
791
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51 for (size_t i = 0, n = a->nr_flags, argidx = 0, fd; i < n; i++) {
792
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36 switch (a->flags[i]) {
793 case 'e': fd = STDERR_FILENO; break;
794 4 case 'i': fd = STDIN_FILENO; break;
795 6 case 'o': fd = STDOUT_FILENO; break;
796 case 'p': exec_flags |= EXECFLAG_PROMPT; continue;
797 18 case 's': exec_flags |= EXECFLAG_QUIET; continue;
798 case 't': exec_flags &= ~EXECFLAG_QUIET; continue;
799 case 'l': lflag = true; continue;
800 case 'm': move_after_insert = true; continue;
801 case 'n': exec_flags |= EXECFLAG_STRIP_NL; continue;
802 default: BUG("unexpected flag"); return false;
803 }
804 18 const char *action_name = a->args[argidx++];
805 18 ExecAction action = lookup_exec_action(action_name, fd);
806
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18 if (unlikely(action == EXEC_INVALID)) {
807 3 return error_msg(&e->err, "invalid action for -%c: '%s'", a->flags[i], action_name);
808 }
809 15 actions[fd] = action;
810 }
811
812
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15 if (lflag && actions[STDIN_FILENO] == EXEC_BUFFER) {
813 // For compat. with old "filter" and "pipe-to" commands
814 actions[STDIN_FILENO] = EXEC_LINE;
815 }
816
817
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15 if ((e->flags & EFLAG_HEADLESS) && !(exec_flags & EXECFLAG_QUIET)) {
818 LOG_INFO("automatically added -s flag to exec command (headless mode)");
819 exec_flags |= EXECFLAG_QUIET;
820 }
821
822 15 const char **argv = (const char **)a->args + a->nr_flag_args;
823 15 ssize_t outlen = handle_exec(e, argv, actions, exec_flags);
824
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15 if (outlen <= 0) {
825 10 return outlen == 0;
826 }
827
828
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5 if (move_after_insert && actions[STDOUT_FILENO] == EXEC_BUFFER) {
829 block_iter_skip_bytes(&e->view->cursor, outlen);
830 }
831 return true;
832 }
833
834 20 static bool cmd_ft(EditorState *e, const CommandArgs *a)
835 {
836 20 ErrorBuffer *ebuf = &e->err;
837 20 char **args = a->args;
838 20 const char *filetype = args[0];
839
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20 if (unlikely(!is_valid_filetype_name(filetype))) {
840 1 return error_msg(ebuf, "Invalid filetype name: '%s'", filetype);
841 }
842
843 19 FileDetectionType dt = FT_EXTENSION;
844
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19 switch (cmdargs_pick_winning_flag(a, "bcfi")) {
845 case 'b': dt = FT_BASENAME; break;
846 case 'c': dt = FT_CONTENT; break;
847 18 case 'f': dt = FT_FILENAME; break;
848 case 'i': dt = FT_INTERPRETER; break;
849 }
850
851 19 PointerArray *filetypes = &e->filetypes;
852 19 size_t nfailed = 0;
853
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38 for (size_t i = 1, n = a->nr_args; i < n; i++) {
854
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19 if (!add_filetype(filetypes, filetype, args[i], dt, ebuf)) {
855 nfailed++;
856 }
857 }
858
859 19 return nfailed == 0;
860 }
861
862 850 static bool cmd_hi(EditorState *e, const CommandArgs *a)
863 {
864
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850 if (unlikely(a->nr_args == 0)) {
865 9 exec_builtin_color_reset(e);
866 9 return true;
867 }
868
869 841 char **strs = a->args + 1;
870 841 size_t strs_len = a->nr_args - 1;
871 841 TermStyle style;
872 841 ssize_t n = parse_term_style(&style, strs, strs_len);
873
874
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841 if (unlikely(n != strs_len)) {
875 2 bool quiet = has_flag(a, 'q');
876 2 ErrorBuffer *ebuf = &e->err;
877
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2 if (n < 0) {
878
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1 return quiet || error_msg(ebuf, "too many colors");
879 }
880 1 BUG_ON(n > strs_len);
881
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1 return quiet || error_msg(ebuf, "invalid color or attribute: '%s'", strs[n]);
882 }
883
884 839 TermFeatureFlags features = e->terminal.features;
885 839 bool true_color = !!(features & TFLAG_TRUE_COLOR);
886
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839 bool optimize = (true_color && e->options.optimize_true_color);
887 839 int32_t fg = color_to_nearest(style.fg, features, optimize);
888 839 int32_t bg = color_to_nearest(style.bg, features, optimize);
889
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839 if (!true_color && has_flag(a, 'c') && (fg != style.fg || bg != style.bg)) {
890 return true;
891 }
892
893 634 style.fg = fg;
894 634 style.bg = bg;
895 634 bool changed = set_highlight_style(&e->styles, a->args[0], &style);
896
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634 e->screen_update |= changed ? (UPDATE_SYNTAX_STYLES | UPDATE_ALL_WINDOWS) : 0;
897 634 return true;
898 }
899
900 104 static bool cmd_include(EditorState *e, const CommandArgs *a)
901 {
902 104 ConfigFlags flags = has_flag(a, 'q') ? CFG_NOFLAGS : CFG_MUST_EXIST;
903
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104 if (has_flag(a, 'b')) {
904 37 flags |= CFG_BUILTIN;
905 }
906
907 104 SystemErrno err = read_normal_config(e, a->args[0], flags);
908 // TODO: Clean up read_normal_config() so this can be simplified to `err == 0`
909
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104 return err == 0 || (err == ENOENT && !(flags & CFG_MUST_EXIST));
910 }
911
912 90 static bool cmd_insert(EditorState *e, const CommandArgs *a)
913 {
914 90 const char *str = a->args[0];
915
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90 if (has_flag(a, 'k')) {
916
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162 for (size_t i = 0; str[i]; i++) {
917 142 insert_ch(e->view, str[i]);
918 }
919 return true;
920 }
921
922 70 bool move_after = has_flag(a, 'm');
923 70 insert_text(e->view, str, strlen(str), move_after);
924 70 return true;
925 }
926
927 16 static bool cmd_join(EditorState *e, const CommandArgs *a)
928 {
929
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16 const char *delim = a->args[0] ? a->args[0] : " ";
930 16 join_lines(e->view, delim, strlen(delim));
931 16 return true;
932 }
933
934 16 static bool cmd_left(EditorState *e, const CommandArgs *a)
935 {
936 16 handle_selection_flags(e->view, a);
937 16 move_cursor_left(e->view);
938 16 return true;
939 }
940
941 4 static bool cmd_line(EditorState *e, const CommandArgs *a)
942 {
943 4 const char *str = a->args[0];
944 4 size_t line, column;
945
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4 if (unlikely(!str_to_xfilepos(str, &line, &column))) {
946 3 return error_msg(&e->err, "Invalid line number: %s", str);
947 }
948
949 1 View *view = e->view;
950 1 long x = view_get_preferred_x(view);
951 1 handle_selection_flags(view, a);
952
953
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1 if (column >= 1) {
954 // Column was specified; move to exact position
955 move_to_filepos(view, line, column);
956 } else {
957 // Column was omitted; move to line while preserving current column
958 1 move_to_line(view, line);
959 1 move_to_preferred_x(view, x);
960 }
961
962 return true;
963 }
964
965 2 static bool cmd_macro(EditorState *e, const CommandArgs *a)
966 {
967 2 MacroRecorder *m = &e->macro;
968 2 const char *action = a->args[0];
969
970
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2 if (streq(action, "play") || streq(action, "run")) {
971
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10 for (size_t i = 0, n = m->macro.count; i < n; i++) {
972 9 const char *cmd_str = m->macro.ptrs[i];
973
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9 if (!handle_normal_command(e, cmd_str, false)) {
974 return false;
975 }
976 }
977 return true;
978 }
979
980
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1 if (streq(action, "toggle")) {
981 action = m->recording ? "stop" : "record";
982 }
983
984
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1 if (streq(action, "record")) {
985 bool r = macro_record(m);
986 return info_msg(&e->err, "%s", r ? "Recording macro" : "Already recording");
987 }
988
989
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1 if (streq(action, "stop")) {
990 if (!macro_stop(m)) {
991 return info_msg(&e->err, "Not recording");
992 }
993 size_t count = m->macro.count;
994 const char *plural = (count != 1) ? "s" : "";
995 return info_msg(&e->err, "Macro recording stopped; %zu command%s saved", count, plural);
996 }
997
998
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1 if (streq(action, "cancel")) {
999 bool r = macro_cancel(m);
1000 return info_msg(&e->err, "%s", r ? "Macro recording cancelled" : "Not recording");
1001 }
1002
1003 1 return error_msg(&e->err, "Unknown action '%s'", action);
1004 }
1005
1006 5 static bool cmd_match_bracket(EditorState *e, const CommandArgs *a)
1007 {
1008 5 BUG_ON(a->nr_args);
1009 5 View *view = e->view;
1010 5 CodePoint cursor_char;
1011
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5 if (!block_iter_get_char(&view->cursor, &cursor_char)) {
1012 1 return error_msg(&e->err, "No character under cursor");
1013 }
1014
1015 4 CodePoint target = cursor_char;
1016 4 BlockIter bi = view->cursor;
1017 4 size_t level = 0;
1018 4 CodePoint u = 0;
1019
1020
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4 switch (cursor_char) {
1021 1 case '<':
1022 case '[':
1023 case '{':
1024 1 target++;
1025 // Fallthrough
1026 2 case '(':
1027 2 target++;
1028 2 goto search_fwd;
1029 1 case '>':
1030 case ']':
1031 case '}':
1032 1 target--;
1033 // Fallthrough
1034 1 case ')':
1035 1 target--;
1036 1 goto search_bwd;
1037 1 default:
1038 1 return error_msg(&e->err, "Character under cursor not matchable");
1039 }
1040
1041 2 search_fwd:
1042 2 block_iter_next_char(&bi, &u);
1043 2 BUG_ON(u != cursor_char);
1044
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47 while (block_iter_next_char(&bi, &u)) {
1045
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46 if (u == target) {
1046
2/2
✓ Branch 16 → 17 taken 1 time.
✓ Branch 16 → 19 taken 1 time.
2 if (level == 0) {
1047 1 block_iter_prev_char(&bi, &u);
1048 1 goto found;
1049 }
1050 1 level--;
1051
2/2
✓ Branch 20 → 21 taken 1 time.
✓ Branch 20 → 22 taken 43 times.
44 } else if (u == cursor_char) {
1052 1 level++;
1053 }
1054 }
1055 1 goto not_found;
1056
1057 1 search_bwd:
1058
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✗ Branch 34 → 35 not taken.
38 while (block_iter_prev_char(&bi, &u)) {
1059
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✓ Branch 26 → 30 taken 37 times.
38 if (u == target) {
1060
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1 if (level == 0) {
1061 1 goto found;
1062 }
1063 level--;
1064
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✓ Branch 30 → 32 taken 37 times.
37 } else if (u == cursor_char) {
1065 level++;
1066 }
1067 }
1068
1069 not_found:
1070 1 return error_msg(&e->err, "No matching bracket found");
1071
1072 2 found:
1073 2 handle_selection_flags(view, a);
1074 2 view->cursor = bi;
1075 2 return true;
1076 }
1077
1078 1 static bool cmd_mode(EditorState *e, const CommandArgs *a)
1079 {
1080 1 const char *name = a->args[0];
1081 1 ModeHandler *handler = get_mode_handler(&e->modes, name);
1082
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1 if (!handler) {
1083 1 return error_msg(&e->err, "unknown mode '%s'", name);
1084 }
1085
1086 push_input_mode(e, handler);
1087 return true;
1088 }
1089
1090 11 static bool cmd_move_tab(EditorState *e, const CommandArgs *a)
1091 {
1092 11 Window *window = e->window;
1093 11 const size_t ntabs = window->views.count;
1094 11 const char *str = a->args[0];
1095 11 size_t to, from = ptr_array_xindex(&window->views, e->view);
1096
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11 if (streq(str, "left")) {
1097 6 to = wrapping_decrement(from, ntabs);
1098
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✓ Branch 6 → 9 taken 2 times.
5 } else if (streq(str, "right")) {
1099 3 to = wrapping_increment(from, ntabs);
1100 } else {
1101
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✓ Branch 11 → 12 taken 1 time.
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2 if (!str_to_size(str, &to) || to == 0) {
1102 1 return error_msg(&e->err, "Invalid tab position %s", str);
1103 }
1104 1 to = MIN(to, ntabs) - 1;
1105 }
1106 10 ptr_array_move(&window->views, from, to);
1107 10 window->update_tabbar = true;
1108 10 return true;
1109 }
1110
1111 2 static bool cmd_msg(EditorState *e, const CommandArgs *a)
1112 {
1113 2 const char *str = a->args[0];
1114
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2 if (str && cmdargs_has_any_flag(a, "np")) {
1115 1 return error_msg (
1116 &e->err,
1117 "flags [-n|-p] can't be used with [number] argument"
1118 );
1119 }
1120
1121 1 char abc = cmdargs_pick_winning_flag(a, "ABC");
1122
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1 MessageList *msgs = &e->messages[abc ? abc - 'A' : 0];
1123 1 size_t n = msgs->array.count;
1124
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1 if (n == 0) {
1125 return true;
1126 }
1127
1128 bool wrap = has_flag(a, 'w');
1129 size_t p = msgs->pos;
1130 switch (cmdargs_pick_winning_flag(a, "np")) {
1131 case 'n':
1132 p = wrap ? wrapping_increment(p, n) : saturating_increment(p, n - 1);
1133 break;
1134 case 'p':
1135 p = wrap ? wrapping_decrement(p, n) : saturating_decrement(p);
1136 break;
1137 case 0:
1138 if (str) {
1139 if (!str_to_size(str, &p) || p == 0) {
1140 return error_msg(&e->err, "invalid message index: %s", str);
1141 }
1142 p = MIN(p - 1, n - 1);
1143 }
1144 }
1145
1146 msgs->pos = p;
1147 return activate_current_message(msgs, e->window);
1148 }
1149
1150 12 static bool cmd_new_line(EditorState *e, const CommandArgs *a)
1151 {
1152 12 bool autoindent = e->buffer->options.auto_indent;
1153 12 NewlineIndentType type = autoindent ? NLI_AUTO_INDENT : NLI_NO_INDENT;
1154
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✓ Branch 3 → 6 taken 4 times.
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12 switch (cmdargs_pick_winning_flag(a, "iIm")) {
1155 case 'I': type = NLI_NO_INDENT; break;
1156 case 'i': type = NLI_AUTO_INDENT; break;
1157 4 case 'm': type = NLI_COPY_INDENT; break;
1158 }
1159
1160 12 bool above_cursor = has_flag(a, 'a');
1161 12 new_line(e->view, above_cursor, type);
1162 12 return true;
1163 }
1164
1165 1 static bool cmd_next(EditorState *e, const CommandArgs *a)
1166 {
1167 1 BUG_ON(a->nr_args);
1168 1 const PointerArray *views = &e->window->views;
1169 1 size_t current = ptr_array_xindex(views, e->view);
1170 1 size_t next = wrapping_increment(current, views->count);
1171 1 set_view(views->ptrs[next]);
1172 1 return true;
1173 }
1174
1175 1 static bool xglob(ErrorBuffer *ebuf, char **args, glob_t *globbuf)
1176 {
1177 1 BUG_ON(!args);
1178 1 BUG_ON(!args[0]);
1179 1 int err = glob(*args, GLOB_NOCHECK, NULL, globbuf);
1180
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1 while (err == 0 && *++args) {
1181 err = glob(*args, GLOB_NOCHECK | GLOB_APPEND, NULL, globbuf);
1182 }
1183
1184
1/2
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1 if (likely(err == 0)) {
1185 1 BUG_ON(globbuf->gl_pathc == 0);
1186 1 BUG_ON(!globbuf->gl_pathv);
1187 1 BUG_ON(!globbuf->gl_pathv[0]);
1188 return true;
1189 }
1190
1191 BUG_ON(err == GLOB_NOMATCH);
1192 globfree(globbuf);
1193 return error_msg(ebuf, "glob: %s", (err == GLOB_NOSPACE) ? strerror(ENOMEM) : "failed");
1194 }
1195
1196 48 static bool cmd_open(EditorState *e, const CommandArgs *a)
1197 {
1198 48 ErrorBuffer *ebuf = &e->err;
1199 48 bool temporary = has_flag(a, 't');
1200
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48 if (unlikely(temporary && a->nr_args > 0)) {
1201 1 return error_msg(ebuf, "'open -t' can't be used with filename arguments");
1202 }
1203
1204 47 const char *requested_encoding = NULL;
1205 47 char **args = a->args;
1206
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✓ Branch 6 → 21 taken 44 times.
47 if (unlikely(a->nr_flag_args > 0)) {
1207 // The "-e" flag is the only one that takes an argument, so the
1208 // above condition implies it was used
1209 3 BUG_ON(!has_flag(a, 'e'));
1210 3 requested_encoding = args[a->nr_flag_args - 1];
1211 3 args += a->nr_flag_args;
1212 }
1213
1214 3 const char *encoding = NULL; // (Auto-detect)
1215
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3 if (requested_encoding) {
1216 3 EncodingType enctype = lookup_encoding(requested_encoding);
1217
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✗ Branch 12 → 14 not taken.
3 if (enctype == UTF8) {
1218 3 encoding = encoding_from_type(UTF8);
1219 } else if (conversion_supported_by_iconv(requested_encoding, "UTF-8")) {
1220 encoding = encoding_normalize(requested_encoding);
1221 } else {
1222 if (errno == EINVAL) {
1223 return error_msg(ebuf, "Unsupported encoding '%s'", requested_encoding);
1224 }
1225 return error_msg (
1226 ebuf,
1227 "iconv conversion from '%s' failed: %s",
1228 requested_encoding,
1229 strerror(errno)
1230 );
1231 }
1232 }
1233
1234 47 Window *window = e->window;
1235
2/2
✓ Branch 21 → 22 taken 42 times.
✓ Branch 21 → 26 taken 5 times.
47 if (a->nr_args == 0) {
1236 42 View *view = window_open_new_file(window);
1237 42 view->buffer->temporary = temporary;
1238
2/2
✓ Branch 23 → 24 taken 3 times.
✓ Branch 23 → 25 taken 39 times.
42 if (requested_encoding) {
1239 3 buffer_set_encoding(view->buffer, encoding, e->options.utf8_bom);
1240 }
1241 42 return true;
1242 }
1243
1244 5 char **paths = args;
1245 5 glob_t globbuf;
1246 5 bool use_glob = has_flag(a, 'g');
1247
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✓ Branch 27 → 31 taken 4 times.
5 if (use_glob) {
1248
1/2
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✗ Branch 29 → 35 not taken.
1 if (!xglob(ebuf, args, &globbuf)) {
1249 return false;
1250 }
1251 1 paths = globbuf.gl_pathv;
1252 }
1253
1254 5 View *first_opened = window_open_files(window, paths, encoding);
1255
1256
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5 if (use_glob) {
1257 1 globfree(&globbuf);
1258 }
1259
1260 5 return !!first_opened;
1261 }
1262
1263 138 static bool cmd_option(EditorState *e, const CommandArgs *a)
1264 {
1265 138 BUG_ON(a->nr_args < 3);
1266 138 const char *arg0 = a->args[0];
1267 138 char **strs = a->args + 1;
1268 138 size_t nstrs = a->nr_args - 1;
1269 138 ErrorBuffer *ebuf = &e->err;
1270
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138 if (unlikely(arg0[0] == '\0')) {
1271 3 return error_msg(ebuf, "first argument cannot be empty");
1272 }
1273
2/2
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135 if (unlikely(nstrs & 1)) {
1274 1 return error_msg(ebuf, "missing option value");
1275 }
1276
2/2
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✓ Branch 9 → 28 taken 8 times.
134 if (unlikely(!validate_local_options(ebuf, strs))) {
1277 return false;
1278 }
1279
1280 126 PointerArray *opts = &e->file_options;
1281
2/2
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126 if (has_flag(a, 'r')) {
1282 10 FileTypeOrFileName u = {.filename = regexp_intern(ebuf, arg0)};
1283
1/2
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✗ Branch 13 → 16 not taken.
10 if (unlikely(!u.filename)) {
1284 return false;
1285 }
1286 10 add_file_options(opts, FOPTS_FILENAME, u, strs, nstrs);
1287 10 return true;
1288 }
1289
1290 116 size_t errors = 0;
1291
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✓ Branch 26 → 27 taken 116 times.
402 for (size_t pos = 0, len = strlen(arg0); pos < len; ) {
1292 286 const StringView ft = get_delim(arg0, &pos, len, ',');
1293
2/2
✓ Branch 19 → 20 taken 8 times.
✓ Branch 19 → 22 taken 278 times.
286 if (unlikely(!is_valid_filetype_name_sv(ft))) {
1294 8 error_msg(ebuf, "invalid filetype name: '%.*s'", (int)ft.length, ft.data);
1295 8 errors++;
1296 8 continue;
1297 }
1298 278 FileTypeOrFileName u = {.filetype = mem_intern(ft.data, ft.length)};
1299 278 add_file_options(opts, FOPTS_FILETYPE, u, strs, nstrs);
1300 }
1301
1302 116 return !errors;
1303 }
1304
1305 9 static bool cmd_blkdown(EditorState *e, const CommandArgs *a)
1306 {
1307 9 View *view = e->view;
1308 9 handle_selection_flags(view, a);
1309
1310 // If current line is blank, skip past consecutive blank lines
1311 9 StringView line = get_current_line(view->cursor);
1312
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9 if (strview_isblank(line)) {
1313
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3 while (block_iter_next_line(&view->cursor)) {
1314 3 line = block_iter_get_line(&view->cursor);
1315
2/2
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✓ Branch 6 → 11 taken 2 times.
3 if (!strview_isblank(line)) {
1316 break;
1317 }
1318 }
1319 }
1320
1321 // Skip past non-blank lines
1322
2/2
✓ Branch 13 → 9 taken 21 times.
✓ Branch 13 → 14 taken 4 times.
25 while (block_iter_next_line(&view->cursor)) {
1323 21 line = block_iter_get_line(&view->cursor);
1324
2/2
✓ Branch 10 → 12 taken 16 times.
✓ Branch 10 → 14 taken 5 times.
21 if (strview_isblank(line)) {
1325 break;
1326 }
1327 }
1328
1329 // If we reach the last populated line in the buffer, move down one line
1330 9 BlockIter tmp = view->cursor;
1331 9 block_iter_eol(&tmp);
1332 9 block_iter_skip_bytes(&tmp, 1);
1333
2/2
✓ Branch 16 → 17 taken 4 times.
✓ Branch 16 → 18 taken 5 times.
9 if (block_iter_is_eof(&tmp)) {
1334 4 view->cursor = tmp;
1335 }
1336
1337 9 return true;
1338 }
1339
1340 4 static bool cmd_blkup(EditorState *e, const CommandArgs *a)
1341 {
1342 4 View *view = e->view;
1343 4 handle_selection_flags(view, a);
1344
1345 // If cursor is on the first line, just move to bol
1346
2/2
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4 if (view->cy == 0) {
1347 1 block_iter_bol(&view->cursor);
1348 1 return true;
1349 }
1350
1351 // If current line is blank, skip past consecutive blank lines
1352 3 StringView line = get_current_line(view->cursor);
1353
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3 if (strview_isblank(line)) {
1354
1/2
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✗ Branch 11 → 14 not taken.
3 while (block_iter_prev_line(&view->cursor)) {
1355 3 line = block_iter_get_line(&view->cursor);
1356
2/2
✓ Branch 9 → 10 taken 2 times.
✓ Branch 9 → 14 taken 1 time.
3 if (!strview_isblank(line)) {
1357 break;
1358 }
1359 }
1360 }
1361
1362 // Skip past non-blank lines
1363
2/2
✓ Branch 16 → 12 taken 14 times.
✓ Branch 16 → 17 taken 2 times.
16 while (block_iter_prev_line(&view->cursor)) {
1364 14 line = block_iter_get_line(&view->cursor);
1365
2/2
✓ Branch 13 → 15 taken 13 times.
✓ Branch 13 → 17 taken 1 time.
14 if (strview_isblank(line)) {
1366 break;
1367 }
1368 }
1369
1370 return true;
1371 }
1372
1373 6 static bool cmd_paste(EditorState *e, const CommandArgs *a)
1374 {
1375 6 PasteLinesType type = PASTE_LINES_BELOW_CURSOR;
1376
2/3
✗ Branch 3 → 4 not taken.
✓ Branch 3 → 5 taken 2 times.
✓ Branch 3 → 6 taken 4 times.
6 switch (cmdargs_pick_winning_flag(a, "ac")) {
1377 case 'a': type = PASTE_LINES_ABOVE_CURSOR; break;
1378 2 case 'c': type = PASTE_LINES_INLINE; break;
1379 }
1380
1381 6 bool move_after = has_flag(a, 'm');
1382 6 paste(&e->clipboard, e->view, type, move_after);
1383 6 return true;
1384 }
1385
1386 2 static bool cmd_pgdown(EditorState *e, const CommandArgs *a)
1387 {
1388 2 View *view = e->view;
1389 2 handle_selection_flags(view, a);
1390
1391 2 Window *window = e->window;
1392 2 long margin = window_get_scroll_margin(window);
1393 2 long bottom = view->vy + window->edit_h - 1 - margin;
1394 2 long count;
1395
1396
1/2
✗ Branch 4 → 5 not taken.
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2 if (view->cy < bottom) {
1397 count = bottom - view->cy;
1398 } else {
1399 2 count = window->edit_h - 1 - (margin * 2);
1400 }
1401
1402 2 move_down(view, count);
1403 2 return true;
1404 }
1405
1406 1 static bool cmd_pgup(EditorState *e, const CommandArgs *a)
1407 {
1408 1 View *view = e->view;
1409 1 handle_selection_flags(view, a);
1410
1411 1 Window *window = e->window;
1412 1 long margin = window_get_scroll_margin(window);
1413 1 long top = view->vy + margin;
1414 1 long count;
1415
1416
1/2
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1 if (view->cy > top) {
1417 1 count = view->cy - top;
1418 } else {
1419 count = window->edit_h - 1 - (margin * 2);
1420 }
1421
1422 1 move_up(view, count);
1423 1 return true;
1424 }
1425
1426 1 static bool cmd_prev(EditorState *e, const CommandArgs *a)
1427 {
1428 1 BUG_ON(a->nr_args);
1429 1 const PointerArray *views = &e->window->views;
1430 1 size_t current = ptr_array_xindex(views, e->view);
1431 1 size_t prev = wrapping_decrement(current, views->count);
1432 1 set_view(views->ptrs[prev]);
1433 1 return true;
1434 }
1435
1436 3 static View *window_find_modified_view(Window *window)
1437 {
1438
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✗ Branch 2 → 3 not taken.
✓ Branch 2 → 7 taken 3 times.
3 if (buffer_modified(window->view->buffer)) {
1439 return window->view;
1440 }
1441 for (size_t i = 0, n = window->views.count; i < n; i++) {
1442 View *view = window->views.ptrs[i];
1443 if (buffer_modified(view->buffer)) {
1444 return view;
1445 }
1446 }
1447 return NULL;
1448 }
1449
1450 5 static size_t count_modified_buffers(const PointerArray *buffers, View **first)
1451 {
1452 5 View *modified = NULL;
1453 5 size_t nr_modified = 0;
1454
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✓ Branch 8 → 3 taken 8 times.
✓ Branch 8 → 9 taken 5 times.
13 for (size_t i = 0, n = buffers->count; i < n; i++) {
1455 8 Buffer *buffer = buffers->ptrs[i];
1456
2/2
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✓ Branch 3 → 5 taken 3 times.
8 if (!buffer_modified(buffer)) {
1457 5 continue;
1458 }
1459 3 nr_modified++;
1460
1/2
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✗ Branch 5 → 7 not taken.
3 if (!modified) {
1461 3 modified = buffer_get_first_view(buffer);
1462 }
1463 }
1464
1465 5 BUG_ON(nr_modified > 0 && !modified);
1466 5 *first = modified;
1467 5 return nr_modified;
1468 }
1469
1470 7 static bool cmd_quit(EditorState *e, const CommandArgs *a)
1471 {
1472 7 static const FlagMapping fmap[] = {
1473 {'C', EFLAG_CMD_HIST},
1474 {'S', EFLAG_SEARCH_HIST},
1475 {'F', EFLAG_FILE_HIST},
1476 {'H', EFLAG_ALL_HIST},
1477 };
1478
1479 7 ErrorBuffer *ebuf = &e->err;
1480 7 int exit_code = EDITOR_EXIT_OK;
1481
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7 if (a->nr_args) {
1482
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✓ Branch 4 → 6 taken 4 times.
5 if (!str_to_int(a->args[0], &exit_code)) {
1483 1 return error_msg(ebuf, "Not a valid integer argument: '%s'", a->args[0]);
1484 }
1485 4 int max = EDITOR_EXIT_MAX;
1486
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4 if (exit_code < 0 || exit_code > max) {
1487 1 return error_msg(ebuf, "Exit code should be between 0 and %d", max);
1488 }
1489 }
1490
1491 5 View *first_modified = NULL;
1492 5 size_t n = count_modified_buffers(&e->buffers, &first_modified);
1493
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5 if (n == 0) {
1494 2 goto exit;
1495 }
1496
1497 3 BUG_ON(!first_modified);
1498
1/2
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✗ Branch 14 → 16 not taken.
3 const char *plural = (n != 1) ? "s" : "";
1499
1/2
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✓ Branch 17 → 20 taken 3 times.
3 if (has_flag(a, 'f')) {
1500 LOG_INFO("force quitting with %zu modified buffer%s", n, plural);
1501 goto exit;
1502 }
1503
1504 // Activate a modified view (giving preference to the current view or
1505 // a view in the current window)
1506 3 View *view = window_find_modified_view(e->window);
1507
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3 set_view(view ? view : first_modified);
1508
1509
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✓ Branch 24 → 26 taken 2 times.
3 if (!has_flag(a, 'p')) {
1510 1 return error_msg(ebuf, "Save modified files or run 'quit -f' to quit without saving");
1511 }
1512
1513
1/2
✓ Branch 26 → 27 taken 2 times.
✗ Branch 26 → 28 not taken.
2 if (unlikely(e->flags & EFLAG_HEADLESS)) {
1514 2 return error_msg(ebuf, "-p flag unavailable in headless mode");
1515 }
1516
1517 char question[128];
1518 xsnprintf (
1519 question, sizeof question,
1520 "Quit without saving %zu modified buffer%s? [y/N]",
1521 n, plural
1522 );
1523
1524 if (dialog_prompt(e, question, "ny") != 'y') {
1525 return false;
1526 }
1527 LOG_INFO("quit prompt accepted with %zu modified buffer%s", n, plural);
1528
1529 2 exit:;
1530 2 EditorFlags histflags = cmdargs_convert_flags(a, fmap, ARRAYLEN(fmap));
1531 2 e->flags &= ~histflags;
1532 2 e->status = exit_code;
1533 2 return true;
1534 }
1535
1536 7 static bool cmd_redo(EditorState *e, const CommandArgs *a)
1537 {
1538 7 char *arg = a->args[0];
1539 7 unsigned long change_id = 0;
1540
2/2
✓ Branch 2 → 3 taken 6 times.
✓ Branch 2 → 7 taken 1 time.
7 if (arg) {
1541
3/4
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✓ Branch 4 → 6 taken 1 time.
✗ Branch 5 → 6 not taken.
✓ Branch 5 → 7 taken 5 times.
6 if (!str_to_ulong(arg, &change_id) || change_id == 0) {
1542 1 return error_msg(&e->err, "Invalid change id: %s", arg);
1543 }
1544 }
1545
2/2
✓ Branch 8 → 9 taken 3 times.
✓ Branch 8 → 10 taken 3 times.
6 if (!redo(e->view, change_id)) {
1546 return false;
1547 }
1548
1549 3 return unselect(e->view);
1550 }
1551
1552 1 static bool cmd_refresh(EditorState *e, const CommandArgs *a)
1553 {
1554 1 BUG_ON(a->nr_args);
1555 1 e->screen_update |= UPDATE_ALL;
1556 1 return true;
1557 }
1558
1559 8 static bool repeat_insert (
1560 View *view,
1561 ErrorBuffer *ebuf,
1562 const char *str,
1563 unsigned int count,
1564 bool move_after
1565 ) {
1566 8 BUG_ON(count < 2);
1567 8 size_t str_len = strlen(str);
1568 8 size_t bufsize;
1569
1/2
✗ Branch 5 → 6 not taken.
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8 if (unlikely(size_multiply_overflows(count, str_len, &bufsize))) {
1570 return error_msg(ebuf, "Repeated insert would overflow");
1571 }
1572
1/2
✓ Branch 7 → 8 taken 8 times.
✗ Branch 7 → 29 not taken.
8 if (unlikely(bufsize == 0)) {
1573 return true;
1574 }
1575
1576 8 char *buf = malloc(bufsize);
1577
1/2
✗ Branch 8 → 9 not taken.
✓ Branch 8 → 10 taken 8 times.
8 if (unlikely(!buf)) {
1578 return error_msg_errno(ebuf, "malloc");
1579 }
1580
1581 8 char tmp[4096];
1582
2/2
✓ Branch 10 → 11 taken 3 times.
✓ Branch 10 → 13 taken 5 times.
8 if (str_len == 1) {
1583 3 memset(buf, str[0], bufsize);
1584 3 LOG_DEBUG("Optimized %u inserts of 1 byte into 1 memset()", count);
1585 3 goto insert;
1586
3/4
✓ Branch 13 → 14 taken 1 time.
✓ Branch 13 → 16 taken 4 times.
✗ Branch 14 → 16 not taken.
✓ Branch 14 → 19 taken 1 time.
5 } else if (bufsize < 2 * sizeof(tmp) || str_len > sizeof(tmp) / 8) {
1587
2/2
✓ Branch 17 → 15 taken 65 times.
✓ Branch 17 → 18 taken 4 times.
69 for (size_t i = 0; i < count; i++) {
1588 65 memcpy(buf + (i * str_len), str, str_len);
1589 }
1590 4 goto insert;
1591 }
1592
1593 1 size_t strs_per_tmp = sizeof(tmp) / str_len;
1594 1 size_t tmp_len = strs_per_tmp * str_len;
1595 1 size_t tmps_per_buf = bufsize / tmp_len;
1596 1 size_t remainder = bufsize % tmp_len;
1597
1598 // Create a block of text containing `strs_per_tmp` concatenated strs
1599
2/2
✓ Branch 21 → 20 taken 1024 times.
✓ Branch 21 → 23 taken 1 time.
1025 for (size_t i = 0; i < strs_per_tmp; i++) {
1600 1024 memcpy(tmp + (i * str_len), str, str_len);
1601 }
1602
1603 // Copy `tmps_per_buf` copies of `tmp` into `buf`
1604
2/2
✓ Branch 23 → 22 taken 2 times.
✓ Branch 23 → 24 taken 1 time.
3 for (size_t i = 0; i < tmps_per_buf; i++) {
1605 2 memcpy(buf + (i * tmp_len), tmp, tmp_len);
1606 }
1607
1608 // Copy the remainder into `buf` (if any)
1609
1/2
✓ Branch 24 → 25 taken 1 time.
✗ Branch 24 → 26 not taken.
1 if (remainder) {
1610 1 memcpy(buf + (tmps_per_buf * tmp_len), tmp, remainder);
1611 }
1612
1613 1 LOG_DEBUG (
1614 "Optimized %u inserts of %zu bytes into %zu inserts of %zu bytes",
1615 count, str_len,
1616 tmps_per_buf, tmp_len
1617 );
1618
1619 8 insert:
1620 8 insert_text(view, buf, bufsize, move_after);
1621 8 free(buf);
1622 8 return true;
1623 }
1624
1625 static bool cmd_reopen(EditorState *e, const CommandArgs* UNUSED_ARG(a))
1626 {
1627 for (const FileHistoryEntry *h = e->file_history.last; h; h = h->prev) {
1628 const char *path = h->filename;
1629 // The combination of walking the history and doing a linear search
1630 // (with find_buffer()) here makes this O(m*n) in the worst case,
1631 // although n (e->buffers.count) will typically be small and m
1632 // (e->file_history.entries.count) is bounded by FILEHIST_MAX_ENTRIES
1633 if (
1634 !find_buffer(&e->buffers, path) // Not already open in the editor
1635 && access(path, R_OK) == 0 // File exists and is readable
1636 && window_open_file(e->window, path, NULL) // Reopened successfully
1637 ) {
1638 return true;
1639 }
1640 }
1641
1642 return error_msg(&e->err, "no reopenable files in history");
1643 }
1644
1645 39 static bool cmd_repeat(EditorState *e, const CommandArgs *a)
1646 {
1647 39 ErrorBuffer *ebuf = &e->err;
1648 39 unsigned int count;
1649
2/2
✓ Branch 3 → 4 taken 1 time.
✓ Branch 3 → 5 taken 38 times.
39 if (unlikely(!str_to_uint(a->args[0], &count))) {
1650 1 return error_msg(ebuf, "Not a valid repeat count: %s", a->args[0]);
1651 }
1652
2/2
✓ Branch 5 → 6 taken 36 times.
✓ Branch 5 → 20 taken 2 times.
38 if (unlikely(count == 0)) {
1653 return true;
1654 }
1655
1656 36 const Command *cmd = find_normal_command(a->args[1]);
1657
2/2
✓ Branch 7 → 8 taken 1 time.
✓ Branch 7 → 9 taken 35 times.
36 if (unlikely(!cmd)) {
1658 1 return error_msg(ebuf, "No such command: %s", a->args[1]);
1659 }
1660
1661 35 CommandArgs a2 = cmdargs_new(a->args + 2);
1662
1/2
✓ Branch 10 → 11 taken 35 times.
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35 if (unlikely(!parse_args(cmd, &a2, ebuf))) {
1663 return false;
1664 }
1665
1666
6/6
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✓ Branch 11 → 18 taken 3 times.
✓ Branch 12 → 13 taken 10 times.
✓ Branch 12 → 18 taken 22 times.
✓ Branch 14 → 15 taken 8 times.
✓ Branch 14 → 18 taken 2 times.
35 if (count > 1 && cmd->cmd == cmd_insert && !has_flag(&a2, 'k')) {
1667 // Use optimized implementation for repeated "insert"
1668 8 bool move_after = has_flag(&a2, 'm');
1669 8 return repeat_insert(e->view, ebuf, a2.args[0], count, move_after);
1670 }
1671
1672
2/2
✓ Branch 19 → 17 taken 1096 times.
✓ Branch 19 → 20 taken 27 times.
1123 while (count--) {
1673 1096 command_func_call(e, ebuf, cmd, &a2);
1674 }
1675
1676 // TODO: return false if fn() fails?
1677 return true;
1678 }
1679
1680 14 static bool cmd_replace(EditorState *e, const CommandArgs *a)
1681 {
1682 14 static const FlagMapping map[] = {
1683 {'b', REPLACE_BASIC},
1684 {'c', REPLACE_CONFIRM},
1685 {'g', REPLACE_GLOBAL},
1686 {'i', REPLACE_IGNORE_CASE},
1687 };
1688
1689 14 const char *pattern = a->args[0];
1690 14 ReplaceFlags flags = cmdargs_convert_flags(a, map, ARRAYLEN(map));
1691
1692
3/4
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✓ Branch 3 → 6 taken 12 times.
✓ Branch 4 → 5 taken 2 times.
✗ Branch 4 → 6 not taken.
14 if (unlikely((flags & REPLACE_CONFIRM) && (e->flags & EFLAG_HEADLESS))) {
1693 2 return error_msg(&e->err, "-c flag unavailable in headless mode");
1694 }
1695
1696 12 char *alloc = NULL;
1697
1/2
✗ Branch 7 → 8 not taken.
✓ Branch 7 → 11 taken 12 times.
12 if (has_flag(a, 'e')) {
1698 StringView pat = strview(pattern);
1699 if (strview_contains_char_type(pat, ASCII_REGEX)) {
1700 pattern = alloc = regexp_escape(pattern, pat.length);
1701 }
1702 flags &= ~REPLACE_BASIC;
1703 }
1704
1705
2/2
✓ Branch 11 → 12 taken 10 times.
✓ Branch 11 → 13 taken 2 times.
12 const char *replacement = a->args[1] ? a->args[1] : "";
1706 12 bool r = reg_replace(e->view, pattern, replacement, flags);
1707 12 free(alloc);
1708 12 return r;
1709 }
1710
1711 31 static bool cmd_right(EditorState *e, const CommandArgs *a)
1712 {
1713 31 handle_selection_flags(e->view, a);
1714 31 move_cursor_right(e->view);
1715 31 return true;
1716 }
1717
1718 static bool stat_changed(const FileInfo *file, const struct stat *st)
1719 {
1720 // Don't compare st_mode because we allow chmod 755 etc.
1721 return !timespecs_equal(get_stat_mtime(st), &file->mtime)
1722 || st->st_dev != file->dev
1723 || st->st_ino != file->ino
1724 || st->st_size != file->size;
1725 }
1726
1727 static SystemErrno save_unmodified_buffer(Buffer *buffer, const char *filename)
1728 {
1729 SaveUnmodifiedType type = buffer->options.save_unmodified;
1730 if (type == SAVE_NONE) {
1731 LOG_INFO("buffer unchanged; leaving file untouched");
1732 return 0;
1733 }
1734
1735 BUG_ON(type != SAVE_TOUCH);
1736 struct timespec times[2];
1737 if (unlikely(clock_gettime(CLOCK_REALTIME, &times[0]) != 0)) {
1738 return LOG_ERRNO("aborting partial save; clock_gettime() failed");
1739 }
1740
1741 times[1] = times[0];
1742 if (unlikely(utimensat(AT_FDCWD, filename, times, 0) != 0)) {
1743 return LOG_ERRNO("aborting partial save; utimensat() failed");
1744 }
1745
1746 buffer->file.mtime = times[0];
1747 LOG_INFO("buffer unchanged; mtime/atime updated");
1748 return 0;
1749 }
1750
1751 25 static bool cmd_save(EditorState *e, const CommandArgs *a)
1752 {
1753 25 Buffer *buffer = e->buffer;
1754 25 ErrorBuffer *ebuf = &e->err;
1755
1/2
✗ Branch 2 → 3 not taken.
✓ Branch 2 → 5 taken 25 times.
25 if (unlikely(buffer->stdout_buffer)) {
1756 const char *f = buffer_filename(buffer);
1757 return info_msg(ebuf, "%s can't be saved; it will be piped to stdout on exit", f);
1758 }
1759
1760 25 char du_flag = cmdargs_pick_winning_flag(a, "du");
1761
2/2
✓ Branch 6 → 7 taken 1 time.
✓ Branch 6 → 8 taken 24 times.
25 bool crlf = du_flag ? (du_flag == 'd') : buffer->crlf_newlines;
1762
1763 25 const char *requested_encoding = NULL;
1764 25 char **args = a->args;
1765
2/2
✓ Branch 9 → 10 taken 2 times.
✓ Branch 9 → 14 taken 23 times.
25 if (unlikely(a->nr_flag_args > 0)) {
1766 2 BUG_ON(!has_flag(a, 'e'));
1767 2 requested_encoding = args[a->nr_flag_args - 1];
1768 2 args += a->nr_flag_args;
1769 }
1770
1771 25 const char *encoding = buffer->encoding;
1772 25 bool bom = buffer->bom;
1773
2/2
✓ Branch 14 → 15 taken 2 times.
✓ Branch 14 → 32 taken 23 times.
25 if (requested_encoding) {
1774 2 EncodingType et = lookup_encoding(requested_encoding);
1775
2/2
✓ Branch 16 → 17 taken 1 time.
✓ Branch 16 → 21 taken 1 time.
2 if (et == UTF8) {
1776
1/2
✗ Branch 18 → 19 not taken.
✓ Branch 18 → 32 taken 1 time.
1 if (!encoding_is_utf8(encoding)) {
1777 // Encoding changed
1778 encoding = encoding_from_type(UTF8);
1779 bom = e->options.utf8_bom;
1780 }
1781
1/2
✓ Branch 22 → 23 taken 1 time.
✗ Branch 22 → 28 not taken.
1 } else if (conversion_supported_by_iconv("UTF-8", requested_encoding)) {
1782 1 encoding = encoding_normalize(requested_encoding);
1783
1/2
✓ Branch 24 → 25 taken 1 time.
✗ Branch 24 → 32 not taken.
1 if (encoding != buffer->encoding) {
1784 // Encoding changed
1785 1 bom = !!get_bom_for_encoding(lookup_encoding(encoding));
1786 }
1787 } else {
1788 if (errno == EINVAL) {
1789 return error_msg(ebuf, "Unsupported encoding '%s'", requested_encoding);
1790 }
1791 return error_msg (
1792 ebuf,
1793 "iconv conversion to '%s' failed: %s",
1794 requested_encoding,
1795 strerror(errno)
1796 );
1797 }
1798 }
1799
1800 25 char b_flag = cmdargs_pick_winning_flag(a, "bB");
1801
1/2
✗ Branch 33 → 34 not taken.
✓ Branch 33 → 35 taken 25 times.
25 bom = b_flag ? (b_flag == 'b') : bom;
1802
1803 25 char *absolute = buffer->abs_filename;
1804 25 bool force = has_flag(a, 'f');
1805 25 bool new_locked = false;
1806
2/2
✓ Branch 36 → 37 taken 24 times.
✓ Branch 36 → 45 taken 1 time.
25 if (a->nr_args > 0) {
1807
2/2
✓ Branch 37 → 38 taken 1 time.
✓ Branch 37 → 39 taken 23 times.
24 if (args[0][0] == '\0') {
1808 1 return error_msg(ebuf, "Empty filename not allowed");
1809 }
1810 23 char *tmp = path_absolute(args[0]);
1811
1/2
✗ Branch 40 → 41 not taken.
✓ Branch 40 → 42 taken 23 times.
23 if (!tmp) {
1812 return error_msg_errno(ebuf, "Failed to make absolute path");
1813 }
1814
3/4
✓ Branch 42 → 43 taken 2 times.
✓ Branch 42 → 55 taken 21 times.
✗ Branch 43 → 44 not taken.
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23 if (absolute && streq(tmp, absolute)) {
1815 free(tmp);
1816 } else {
1817 absolute = tmp;
1818 }
1819 } else {
1820
1/2
✓ Branch 45 → 46 taken 1 time.
✗ Branch 45 → 52 not taken.
1 if (!absolute) {
1821
1/2
✓ Branch 47 → 48 taken 1 time.
✗ Branch 47 → 49 not taken.
1 if (!has_flag(a, 'p')) {
1822 1 return error_msg(ebuf, "No filename");
1823 }
1824 push_input_mode(e, e->command_mode);
1825 cmdline_set_text(&e->cmdline, "save ");
1826 return true;
1827 }
1828 if (buffer->readonly && !force) {
1829 return error_msg(ebuf, "Use -f to force saving read-only file");
1830 }
1831 }
1832
1833 23 mode_t old_mode = buffer->file.mode;
1834 23 bool hardlinks = false;
1835 23 struct stat st;
1836 23 bool stat_ok = !stat(absolute, &st);
1837
2/2
✓ Branch 56 → 57 taken 22 times.
✓ Branch 56 → 61 taken 1 time.
23 if (!stat_ok) {
1838
1/2
✗ Branch 57 → 58 not taken.
✓ Branch 57 → 70 taken 22 times.
22 if (errno != ENOENT) {
1839 error_msg(ebuf, "stat failed for %s: %s", absolute, strerror(errno));
1840 goto error;
1841 }
1842 } else {
1843 1 if (
1844
1/2
✗ Branch 61 → 62 not taken.
✓ Branch 61 → 66 taken 1 time.
1 absolute == buffer->abs_filename
1845 && !force
1846 && stat_changed(&buffer->file, &st)
1847 ) {
1848 error_msg (
1849 ebuf,
1850 "File has been modified by another process; "
1851 "use 'save -f' to force overwrite"
1852 );
1853 goto error;
1854 }
1855
1/2
✓ Branch 66 → 67 taken 1 time.
✗ Branch 66 → 69 not taken.
1 if (S_ISDIR(st.st_mode)) {
1856 1 error_msg(ebuf, "Will not overwrite directory %s", absolute);
1857 1 goto error;
1858 }
1859 hardlinks = (st.st_nlink >= 2);
1860 }
1861
1862
1/2
✗ Branch 70 → 71 not taken.
✓ Branch 70 → 84 taken 22 times.
22 if (e->options.lock_files) {
1863 if (absolute == buffer->abs_filename) {
1864 if (!buffer->locked) {
1865 if (!lock_file(&e->locks_ctx, ebuf, absolute)) {
1866 if (!force) {
1867 error_msg(ebuf, "Can't lock file %s", absolute);
1868 goto error;
1869 }
1870 } else {
1871 buffer->locked = true;
1872 }
1873 }
1874 } else {
1875 if (!lock_file(&e->locks_ctx, ebuf, absolute)) {
1876 if (!force) {
1877 error_msg(ebuf, "Can't lock file %s", absolute);
1878 goto error;
1879 }
1880 } else {
1881 new_locked = true;
1882 }
1883 }
1884 }
1885
1886
1/2
✗ Branch 84 → 85 not taken.
✓ Branch 84 → 102 taken 22 times.
22 if (stat_ok) {
1887 if (absolute != buffer->abs_filename && !force) {
1888 error_msg(ebuf, "Use -f to overwrite %s", absolute);
1889 goto error;
1890 }
1891 // Allow chmod 755 etc.
1892 buffer->file.mode = st.st_mode;
1893 }
1894
1895 if (
1896 stat_ok
1897 && buffer->options.save_unmodified != SAVE_FULL
1898 && !stat_changed(&buffer->file, &st)
1899 && st.st_uid == buffer->file.uid
1900 && st.st_gid == buffer->file.gid
1901 && !buffer_modified(buffer)
1902 && absolute == buffer->abs_filename
1903 && encoding == buffer->encoding
1904 && crlf == buffer->crlf_newlines
1905 && bom == buffer->bom
1906 && save_unmodified_buffer(buffer, absolute) == 0
1907 ) {
1908 BUG_ON(new_locked);
1909 return true;
1910 }
1911
1912 22 FileSaveContext ctx = {
1913 .ebuf = ebuf,
1914 .encoding = encoding,
1915 22 .new_file_mode = e->new_file_mode,
1916 .crlf = crlf,
1917 .write_bom = bom,
1918 .hardlinks = hardlinks,
1919 };
1920
1921
1/2
✗ Branch 103 → 104 not taken.
✓ Branch 103 → 105 taken 22 times.
22 if (!save_buffer(buffer, absolute, &ctx)) {
1922 goto error;
1923 }
1924
1925 22 buffer->saved_change = buffer->cur_change;
1926 22 buffer->readonly = false;
1927 22 buffer->temporary = false;
1928 22 buffer->crlf_newlines = crlf;
1929 22 buffer->bom = bom;
1930
2/2
✓ Branch 105 → 106 taken 2 times.
✓ Branch 105 → 107 taken 20 times.
22 if (requested_encoding) {
1931 2 buffer->encoding = encoding;
1932 }
1933
1934
1/2
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✗ Branch 107 → 112 not taken.
22 if (absolute != buffer->abs_filename) {
1935
1/2
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✓ Branch 108 → 110 taken 22 times.
22 if (buffer->locked) {
1936 // Filename changes, release old file lock
1937 unlock_file(&e->locks_ctx, ebuf, buffer->abs_filename);
1938 }
1939 22 buffer->locked = new_locked;
1940
1941 22 free(buffer->abs_filename);
1942 22 buffer->abs_filename = absolute;
1943 22 buffer_update_short_filename(buffer, e->home_dir);
1944 22 e->screen_update |= UPDATE_TERM_TITLE;
1945
1946 // Filename change is not detected (only buffer_modified() change)
1947 22 buffer_mark_tabbars_changed(buffer);
1948 }
1949
3/4
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✓ Branch 112 → 123 taken 2 times.
✓ Branch 113 → 114 taken 20 times.
✗ Branch 113 → 123 not taken.
22 if (!old_mode && streq(buffer->options.filetype, "none")) {
1950 // New file and most likely user has not changed the filetype
1951
1/2
✗ Branch 115 → 116 not taken.
✓ Branch 115 → 123 taken 20 times.
20 if (buffer_detect_filetype(buffer, &e->filetypes)) {
1952 set_file_options(e, buffer);
1953 set_editorconfig_options(buffer);
1954 buffer_update_syntax(e, buffer);
1955 }
1956 }
1957
1958 return true;
1959
1960 error:
1961
0/2
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✗ Branch 119 → 121 not taken.
1 if (new_locked) {
1962 unlock_file(&e->locks_ctx, ebuf, absolute);
1963 }
1964
1/2
✓ Branch 121 → 122 taken 1 time.
✗ Branch 121 → 123 not taken.
1 if (absolute != buffer->abs_filename) {
1965 1 free(absolute);
1966 }
1967 return false;
1968 }
1969
1970 1 static bool cmd_scroll_down(EditorState *e, const CommandArgs *a)
1971 {
1972 1 BUG_ON(a->nr_args);
1973 1 View *view = e->view;
1974 1 handle_selection_flags(view, a);
1975 1 view->vy++;
1976
1977
1/2
✓ Branch 6 → 7 taken 1 time.
✗ Branch 6 → 10 not taken.
1 if (has_flag(a, 'M')) {
1978 return true; // Don't move cursor, even at scroll margin
1979 }
1980
1981 1 long margin = window_get_scroll_margin(e->window);
1982
1/2
✓ Branch 8 → 9 taken 1 time.
✗ Branch 8 → 10 not taken.
1 if (view->cy < view->vy + margin) {
1983 1 move_down(view, 1);
1984 }
1985
1986 return true;
1987 }
1988
1989 1 static bool cmd_scroll_pgdown(EditorState *e, const CommandArgs *a)
1990 {
1991 1 BUG_ON(a->nr_args);
1992 1 View *view = e->view;
1993 1 handle_selection_flags(view, a);
1994
1995 1 const long edit_h = e->window->edit_h;
1996 1 const long max = view->buffer->nl - edit_h + 1;
1997 1 long count;
1998
1999
2/4
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✗ Branch 5 → 11 not taken.
✓ Branch 6 → 7 taken 1 time.
✗ Branch 6 → 11 not taken.
1 if (view->vy < max && max > 0) {
2000 1 bool half = has_flag(a, 'h');
2001 1 unsigned int shift = half & 1;
2002 1 count = (edit_h - 1) >> shift;
2003
1/2
✗ Branch 8 → 9 not taken.
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1 if (view->vy + count > max) {
2004 count = max - view->vy;
2005 }
2006 1 view->vy += count;
2007 } else if (view->cy < view->buffer->nl) {
2008 count = view->buffer->nl - view->cy;
2009 } else {
2010 return true;
2011 }
2012
2013 1 move_down(view, count);
2014 1 return true;
2015 }
2016
2017 1 static bool cmd_scroll_pgup(EditorState *e, const CommandArgs *a)
2018 {
2019 1 BUG_ON(a->nr_args);
2020 1 View *view = e->view;
2021 1 handle_selection_flags(view, a);
2022
2023 1 long count;
2024
1/2
✗ Branch 5 → 6 not taken.
✓ Branch 5 → 8 taken 1 time.
1 if (view->vy > 0) {
2025 bool half = has_flag(a, 'h');
2026 unsigned int shift = half & 1;
2027 count = MIN((e->window->edit_h - 1) >> shift, view->vy);
2028 view->vy -= count;
2029
1/2
✗ Branch 8 → 9 not taken.
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1 } else if (view->cy > 0) {
2030 count = view->cy;
2031 } else {
2032 return true;
2033 }
2034
2035 move_up(view, count);
2036 return true;
2037 }
2038
2039 1 static bool cmd_scroll_up(EditorState *e, const CommandArgs *a)
2040 {
2041 1 BUG_ON(a->nr_args);
2042 1 View *view = e->view;
2043 1 handle_selection_flags(view, a);
2044 1 view->vy -= (view->vy > 0);
2045
2046
1/2
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1 if (has_flag(a, 'M')) {
2047 return true; // Don't move cursor, even at scroll margin
2048 }
2049
2050 1 const Window *window = e->window;
2051 1 long margin = window_get_scroll_margin(window);
2052
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1 if (view->vy + (window->edit_h - margin) <= view->cy) {
2053 1 move_up(view, 1);
2054 }
2055
2056 return true;
2057 }
2058
2059 7 static bool cmd_search(EditorState *e, const CommandArgs *a)
2060 {
2061 7 const char *pattern = a->args[0];
2062 7 char npflag = cmdargs_pick_winning_flag(a, "np");
2063 7 bool use_word_under_cursor = has_flag(a, 'w');
2064
2065
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7 if (!!npflag + use_word_under_cursor + !!pattern > 1) {
2066 2 return error_msg (
2067 &e->err,
2068 "flags [-n|-p|-w] and [pattern] argument are mutually exclusive"
2069 );
2070 }
2071
2072 5 View *view = e->view;
2073 5 char pattbuf[4096];
2074
2075
2/2
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5 if (use_word_under_cursor) {
2076 1 StringView word = view_get_word_under_cursor(view);
2077
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1 if (word.length == 0) {
2078 1 return false; // Error message wouldn't be very useful here
2079 }
2080 1 const RegexpWordBoundaryTokens *rwbt = &e->regexp_word_tokens;
2081 1 const size_t n = rwbt->len;
2082
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1 if (unlikely(word.length >= sizeof(pattbuf) - (n * 2))) {
2083 1 return error_msg(&e->err, "word under cursor too long");
2084 }
2085 xmempcpy3(pattbuf, rwbt->start, n, word.data, word.length, rwbt->end, n + 1);
2086 pattern = pattbuf;
2087 }
2088
2089 4 SearchState *search = &e->search;
2090 4 search->reverse = has_flag(a, 'r');
2091
2092
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✓ Branch 15 → 18 taken 4 times.
4 if (!npflag && !pattern) {
2093 push_input_mode(e, e->search_mode);
2094 return true;
2095 }
2096
2097 // TODO: Make [-c|-l] selection flags apply to search mode (as handled above)
2098 // and/or add `[-c|-l]` flags to the search mode `accept` command and bind to
2099 // Shift+Enter and Ctrl+Shift+Enter
2100 4 handle_selection_flags(view, a);
2101
2102 4 SearchCaseSensitivity cs = e->options.case_sensitive_search;
2103
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4 switch (cmdargs_pick_winning_flag(a, "ais")) {
2104 case 'a': cs = CSS_AUTO; break;
2105 case 'i': cs = CSS_FALSE; break;
2106 case 's': cs = CSS_TRUE; break;
2107 }
2108
2109
3/3
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✓ Branch 24 → 27 taken 2 times.
4 switch (npflag) {
2110 1 case 'n': return search_next(view, search, cs);
2111 1 case 'p': return search_prev(view, search, cs);
2112 }
2113
2114 2 BUG_ON(!pattern);
2115 2 char *alloc = NULL;
2116
2117
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✗ Branch 29 → 35 not taken.
✗ Branch 31 → 32 not taken.
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2 if (!use_word_under_cursor && has_flag(a, 'e')) {
2118 StringView pat = strview(pattern);
2119 if (strview_contains_char_type(pat, ASCII_REGEX)) {
2120 pattern = alloc = regexp_escape(pattern, pat.length);
2121 }
2122 }
2123
2124
2/2
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✓ Branch 36 → 38 taken 1 time.
2 if (!has_flag(a, 'H')) {
2125 1 history_append(&e->search_history, pattern);
2126 }
2127
2128 2 search_set_regexp(search, pattern);
2129 2 free(alloc);
2130
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✓ Branch 42 → 43 taken 1 time.
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3 return has_flag(a, 'x') || do_search_next(view, search, cs, use_word_under_cursor);
2131 }
2132
2133 static bool cmd_select_block(EditorState *e, const CommandArgs *a)
2134 {
2135 BUG_ON(a->nr_args);
2136 select_block(e->view);
2137
2138 // TODO: return false if select_block() doesn't select anything?
2139 return true;
2140 }
2141
2142 3 static bool cmd_select(EditorState *e, const CommandArgs *a)
2143 {
2144 3 View *view = e->view;
2145
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3 SelectionType sel = has_flag(a, 'l') ? SELECT_LINES : SELECT_CHARS;
2146 3 bool keep = has_flag(a, 'k');
2147
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3 if (!keep && view->selection && view->selection == sel) {
2148 sel = SELECT_NONE;
2149 }
2150
2151 3 view->select_mode = sel;
2152 3 view_set_selection_type(view, sel);
2153 3 return true;
2154 }
2155
2156 41 static bool cmd_set(EditorState *e, const CommandArgs *a)
2157 {
2158 41 bool global = has_flag(a, 'g');
2159 41 bool local = has_flag(a, 'l');
2160
1/2
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✓ Branch 4 → 7 taken 41 times.
41 if (!e->buffer) {
2161 if (unlikely(local)) {
2162 return error_msg(&e->err, "Flag -l makes no sense in config file");
2163 }
2164 global = true;
2165 }
2166
2167 41 char **args = a->args;
2168 41 size_t count = a->nr_args;
2169
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41 if (count == 1) {
2170 1 return set_bool_option(e, args[0], local, global);
2171 }
2172
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✓ Branch 9 → 15 taken 39 times.
40 if (count & 1) {
2173 1 return error_msg(&e->err, "One or even number of arguments expected");
2174 }
2175
2176 size_t errors = 0;
2177
2/2
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78 for (size_t i = 0; i < count; i += 2) {
2178
2/2
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✓ Branch 12 → 14 taken 17 times.
39 if (!set_option(e, args[i], args[i + 1], local, global)) {
2179 22 errors++;
2180 }
2181 }
2182
2183 39 return !errors;
2184 }
2185
2186 18 static bool cmd_setenv(EditorState *e, const CommandArgs *a)
2187 {
2188 18 const char *name = a->args[0];
2189
2/2
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✓ Branch 2 → 4 taken 17 times.
18 if (unlikely(streq(name, "DTE_VERSION"))) {
2190 1 return error_msg(&e->err, "$DTE_VERSION cannot be changed");
2191 }
2192
2193 17 const size_t nr_args = a->nr_args;
2194 17 int res;
2195
2/2
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✓ Branch 4 → 6 taken 4 times.
17 if (nr_args == 2) {
2196 13 res = setenv(name, a->args[1], 1);
2197 } else {
2198 4 BUG_ON(nr_args != 1);
2199 4 res = unsetenv(name);
2200 }
2201
2202
1/2
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✓ Branch 9 → 15 taken 17 times.
17 if (likely(res == 0)) {
2203 return true;
2204 }
2205
2206 if (errno == EINVAL) {
2207 return error_msg(&e->err, "Invalid environment variable name '%s'", name);
2208 }
2209
2210 return error_msg_errno(&e->err, nr_args == 2 ? "setenv" : "unsetenv");
2211 }
2212
2213 12 static bool cmd_shift(EditorState *e, const CommandArgs *a)
2214 {
2215 12 const char *arg = a->args[0];
2216 12 int count;
2217
2/2
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✓ Branch 3 → 5 taken 11 times.
12 if (!str_to_int(arg, &count)) {
2218 1 return error_msg(&e->err, "Invalid number: %s", arg);
2219 }
2220
2/2
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✓ Branch 5 → 7 taken 10 times.
11 if (count == 0) {
2221 1 return error_msg(&e->err, "Count must be non-zero");
2222 }
2223 10 shift_lines(e->view, count);
2224 10 return true;
2225 }
2226
2227 9 static bool cmd_show(EditorState *e, const CommandArgs *a)
2228 {
2229 9 bool write_to_cmdline = has_flag(a, 'c');
2230 9 size_t nr_args = a->nr_args;
2231
2/2
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9 if (write_to_cmdline && nr_args < 2) {
2232 1 return error_msg(&e->err, "\"show -c\" requires 2 arguments");
2233 }
2234
2235
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8 const char *type = (nr_args > 0) ? a->args[0] : NULL;
2236
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✓ Branch 6 → 8 taken 2 times.
8 const char *key = (nr_args > 1) ? a->args[1] : NULL;
2237 8 return show(e, type, key, write_to_cmdline);
2238 }
2239
2240 2 static bool cmd_suspend(EditorState *e, const CommandArgs *a)
2241 {
2242 2 BUG_ON(a->nr_args);
2243
1/2
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2 if (e->flags & EFLAG_HEADLESS) {
2244 2 return error_msg(&e->err, "unavailable in headless mode");
2245 }
2246
2247 if (e->status == EDITOR_INITIALIZING) {
2248 LOG_WARNING("suspend request ignored");
2249 return false;
2250 }
2251
2252 if (e->session_leader) {
2253 return error_msg(&e->err, "Session leader can't suspend");
2254 }
2255
2256 ui_end(&e->terminal, false);
2257 term_cooked();
2258 LOG_INFO("suspending");
2259
2260 bool suspended = !kill(0, SIGSTOP);
2261 if (suspended) {
2262 LOG_INFO("resumed");
2263 } else {
2264 error_msg_errno(&e->err, "kill");
2265 }
2266
2267 term_raw();
2268 ui_start(e);
2269 return suspended;
2270 }
2271
2272 2 static bool cmd_tag(EditorState *e, const CommandArgs *a)
2273 {
2274
2/2
✓ Branch 3 → 4 taken 1 time.
✓ Branch 3 → 6 taken 1 time.
2 if (has_flag(a, 'r')) {
2275 1 bookmark_pop(&e->bookmarks, e->window);
2276 1 return true;
2277 }
2278
2279 1 size_t nargs = a->nr_args;
2280 1 StringView word_under_cursor;
2281
1/2
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1 if (nargs == 0) {
2282 word_under_cursor = view_get_word_under_cursor(e->view);
2283 if (word_under_cursor.length == 0) {
2284 return false;
2285 }
2286 }
2287
2288 1 char abc = cmdargs_pick_winning_flag(a, "ABC");
2289
1/2
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1 size_t idx = abc ? abc - 'A' : e->options.msg_tag;
2290 1 MessageList *msgs = &e->messages[idx];
2291 1 clear_messages(msgs);
2292
1/2
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✗ Branch 15 → 24 not taken.
1 if (!load_tag_file(&e->tagfile, &e->err)) {
2293 return false;
2294 }
2295
2296 1 const char *filename = e->buffer->abs_filename;
2297
1/2
✗ Branch 16 → 17 not taken.
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1 if (nargs == 0) {
2298 tag_lookup(&e->tagfile, msgs, &e->err, word_under_cursor, filename);
2299 }
2300
2301
2/2
✓ Branch 21 → 18 taken 1 time.
✓ Branch 21 → 22 taken 1 time.
2 for (size_t i = 0; i < nargs; i++) {
2302 1 StringView tagname = strview(a->args[i]);
2303 1 tag_lookup(&e->tagfile, msgs, &e->err, tagname, filename);
2304 }
2305
2306 1 activate_current_message_save(msgs, &e->bookmarks, e->view);
2307 1 return (msgs->array.count > 0);
2308 }
2309
2310 static bool cmd_title(EditorState *e, const CommandArgs *a)
2311 {
2312 Buffer *buffer = e->buffer;
2313 if (buffer->abs_filename) {
2314 return error_msg(&e->err, "saved buffers can't be retitled");
2315 }
2316
2317 buffer_set_display_filename(buffer, xstrdup(a->args[0]));
2318 buffer_mark_tabbars_changed(buffer);
2319 e->screen_update |= UPDATE_TERM_TITLE;
2320 return true;
2321 }
2322
2323 16 static bool cmd_toggle(EditorState *e, const CommandArgs *a)
2324 {
2325 16 bool global = has_flag(a, 'g');
2326 16 bool verbose = has_flag(a, 'v');
2327 16 const char *option_name = a->args[0];
2328 16 size_t nr_values = a->nr_args - 1;
2329
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16 if (nr_values == 0) {
2330 16 return toggle_option(e, option_name, global, verbose);
2331 }
2332
2333 char **values = a->args + 1;
2334 return toggle_option_values(e, option_name, global, verbose, values, nr_values);
2335 }
2336
2337 1020 static bool cmd_undo(EditorState *e, const CommandArgs *a)
2338 {
2339 1020 View *view = e->view;
2340 1020 bool move_only = has_flag(a, 'm');
2341
1/2
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✓ Branch 3 → 8 taken 1020 times.
1020 if (move_only) {
2342 const Change *change = view->buffer->cur_change;
2343 if (!change->next) {
2344 // If there's only 1 change, there's nothing meaningful to move to
2345 return false;
2346 }
2347 block_iter_goto_offset(&view->cursor, change->offset);
2348 view_reset_preferred_x(view);
2349 return true;
2350 }
2351
2352
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✗ Branch 11 → 12 not taken.
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1020 return undo(view) && unselect(view);
2353 }
2354
2355 1 static bool cmd_unselect(EditorState *e, const CommandArgs *a)
2356 {
2357 1 BUG_ON(a->nr_args);
2358 1 return unselect(e->view);
2359 }
2360
2361 16 static bool cmd_up(EditorState *e, const CommandArgs *a)
2362 {
2363 16 handle_selection_flags(e->view, a);
2364 16 move_up(e->view, 1);
2365 16 return true;
2366 }
2367
2368 3 static bool cmd_view(EditorState *e, const CommandArgs *a)
2369 {
2370 3 Window *window = e->window;
2371 3 BUG_ON(window->views.count == 0);
2372 3 const char *arg = a->args[0];
2373 3 size_t idx;
2374
1/2
✗ Branch 4 → 5 not taken.
✓ Branch 4 → 6 taken 3 times.
3 if (streq(arg, "last")) {
2375 idx = window->views.count - 1;
2376 } else {
2377
4/4
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✓ Branch 7 → 9 taken 1 time.
✓ Branch 8 → 9 taken 1 time.
✓ Branch 8 → 10 taken 1 time.
3 if (!str_to_size(arg, &idx) || idx == 0) {
2378 2 return error_msg(&e->err, "Invalid view index: %s", arg);
2379 }
2380 1 idx = MIN(idx, window->views.count) - 1;
2381 }
2382 1 set_view(window->views.ptrs[idx]);
2383 1 return true;
2384 }
2385
2386 4 static bool cmd_wclose(EditorState *e, const CommandArgs *a)
2387 {
2388 4 View *first_uncloseable;
2389 4 size_t n = window_count_uncloseable_views(e->window, &first_uncloseable);
2390 4 bool force = has_flag(a, 'f');
2391
2/2
✓ Branch 4 → 5 taken 2 times.
✓ Branch 4 → 6 taken 2 times.
4 if (n == 0 || force) {
2392 2 goto close;
2393 }
2394
2395 2 bool prompt = has_flag(a, 'p');
2396 2 set_view(first_uncloseable);
2397
2/2
✓ Branch 8 → 9 taken 1 time.
✓ Branch 8 → 10 taken 1 time.
2 if (!prompt) {
2398 1 return error_msg (
2399 &e->err,
2400 "Save modified files or run 'wclose -f' to close "
2401 "window without saving"
2402 );
2403 }
2404
2405
1/2
✓ Branch 10 → 11 taken 1 time.
✗ Branch 10 → 12 not taken.
1 if (unlikely(e->flags & EFLAG_HEADLESS)) {
2406 1 return error_msg(&e->err, "-p flag unavailable in headless mode");
2407 }
2408
2409 const char *plural = (n != 1) ? "s" : "";
2410 char question[128];
2411
2412 xsnprintf (
2413 question, sizeof question,
2414 "Close window without saving %zu modified buffer%s? [y/N]",
2415 n, plural
2416 );
2417
2418 if (dialog_prompt(e, question, "ny") != 'y') {
2419 return false;
2420 }
2421
2422 close:
2423 2 window_close(e->window);
2424 2 return true;
2425 }
2426
2427 1 static bool cmd_wflip(EditorState *e, const CommandArgs *a)
2428 {
2429 1 BUG_ON(a->nr_args);
2430 1 Frame *frame = e->window->frame;
2431
1/2
✗ Branch 4 → 5 not taken.
✓ Branch 4 → 6 taken 1 time.
1 if (!frame->parent) {
2432 return false;
2433 }
2434 frame->parent->vertical ^= 1;
2435 e->screen_update |= UPDATE_ALL_WINDOWS;
2436 return true;
2437 }
2438
2439 1 static bool cmd_wnext(EditorState *e, const CommandArgs *a)
2440 {
2441 1 BUG_ON(a->nr_args);
2442 1 e->window = window_next(e->window);
2443 1 set_view(e->window->view);
2444 1 e->screen_update |= UPDATE_ALL;
2445 1 frame_debug(e->root_frame);
2446 1 return true;
2447 }
2448
2449 1 static bool cmd_word_bwd(EditorState *e, const CommandArgs *a)
2450 {
2451 1 handle_selection_flags(e->view, a);
2452 1 bool skip_non_word = has_flag(a, 's');
2453 1 word_bwd(&e->view->cursor, skip_non_word);
2454 1 view_reset_preferred_x(e->view);
2455 1 return true;
2456 }
2457
2458 4 static bool cmd_word_fwd(EditorState *e, const CommandArgs *a)
2459 {
2460 4 handle_selection_flags(e->view, a);
2461 4 bool skip_non_word = has_flag(a, 's');
2462 4 word_fwd(&e->view->cursor, skip_non_word);
2463 4 view_reset_preferred_x(e->view);
2464 4 return true;
2465 }
2466
2467 1 static bool cmd_wprev(EditorState *e, const CommandArgs *a)
2468 {
2469 1 BUG_ON(a->nr_args);
2470 1 e->window = window_prev(e->window);
2471 1 set_view(e->window->view);
2472 1 e->screen_update |= UPDATE_ALL;
2473 1 frame_debug(e->root_frame);
2474 1 return true;
2475 }
2476
2477 4 static bool cmd_wrap_paragraph(EditorState *e, const CommandArgs *a)
2478 {
2479 4 const char *arg = a->args[0];
2480 4 unsigned int width = e->buffer->options.text_width;
2481
2/2
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✓ Branch 2 → 9 taken 1 time.
4 if (arg) {
2482
2/2
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✓ Branch 4 → 6 taken 2 times.
3 if (!str_to_uint(arg, &width)) {
2483 1 return error_msg(&e->err, "invalid paragraph width: %s", arg);
2484 }
2485 2 unsigned int max = TEXT_WIDTH_MAX;
2486
3/4
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✗ Branch 6 → 8 not taken.
✓ Branch 7 → 8 taken 1 time.
✓ Branch 7 → 9 taken 1 time.
2 if (width < 1 || width > max) {
2487 1 return error_msg(&e->err, "width must be between 1 and %u", max);
2488 }
2489 }
2490 2 wrap_paragraph(e->view, width);
2491 2 return true;
2492 }
2493
2494 2 static bool cmd_wresize(EditorState *e, const CommandArgs *a)
2495 {
2496 2 Window *window = e->window;
2497
2/2
✓ Branch 2 → 3 taken 1 time.
✓ Branch 2 → 19 taken 1 time.
2 if (!window->frame->parent) {
2498 // Only window
2499 return false;
2500 }
2501
2502 1 ResizeDirection dir = RESIZE_DIRECTION_AUTO;
2503
1/3
✗ Branch 4 → 5 not taken.
✗ Branch 4 → 6 not taken.
✓ Branch 4 → 7 taken 1 time.
1 switch (cmdargs_pick_winning_flag(a, "hv")) {
2504 case 'h':
2505 dir = RESIZE_DIRECTION_HORIZONTAL;
2506 break;
2507 case 'v':
2508 dir = RESIZE_DIRECTION_VERTICAL;
2509 break;
2510 }
2511
2512 1 const char *arg = a->args[0];
2513
1/2
✓ Branch 7 → 8 taken 1 time.
✗ Branch 7 → 16 not taken.
1 if (arg) {
2514 1 int n;
2515
1/2
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✗ Branch 9 → 12 not taken.
1 if (!str_to_int(arg, &n)) {
2516 1 return error_msg(&e->err, "Invalid resize value: %s", arg);
2517 }
2518 if (arg[0] == '+' || arg[0] == '-') {
2519 frame_add_to_size(window->frame, dir, n);
2520 } else {
2521 frame_resize(window->frame, dir, n);
2522 }
2523 } else {
2524 frame_equalize_sizes(window->frame->parent);
2525 }
2526
2527 e->screen_update |= UPDATE_ALL_WINDOWS;
2528 frame_debug(e->root_frame);
2529 // TODO: return false if resize failed?
2530 return true;
2531 }
2532
2533 3 static bool cmd_wsplit(EditorState *e, const CommandArgs *a)
2534 {
2535 3 bool before = has_flag(a, 'b');
2536
1/4
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✓ Branch 4 → 6 taken 3 times.
✗ Branch 5 → 6 not taken.
✗ Branch 5 → 7 not taken.
3 bool use_glob = has_flag(a, 'g') && a->nr_args > 0;
2537 3 bool vertical = has_flag(a, 'h');
2538 3 bool root = has_flag(a, 'r');
2539 3 bool temporary = has_flag(a, 't');
2540
3/4
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✗ Branch 12 → 13 not taken.
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3 bool empty = temporary || has_flag(a, 'n');
2541
2542
2/2
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✓ Branch 13 → 15 taken 1 time.
2 if (unlikely(empty && a->nr_args > 0)) {
2543 1 return error_msg(&e->err, "flags [-n|-t] can't be used with [filename] arguments");
2544 }
2545
2546 2 char **paths = a->args;
2547 2 glob_t globbuf;
2548
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2 if (use_glob) {
2549 if (!xglob(&e->err, a->args, &globbuf)) {
2550 return false;
2551 }
2552 paths = globbuf.gl_pathv;
2553 }
2554
2555 2 Frame *frame;
2556
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2 if (root) {
2557 frame = frame_split_root(e, vertical, before);
2558 } else {
2559 2 frame = frame_split(e->window, vertical, before);
2560 }
2561
2562 2 View *save = e->view;
2563 2 e->window = frame->window;
2564 2 e->view = NULL;
2565 2 e->buffer = NULL;
2566 2 e->screen_update |= UPDATE_ALL;
2567
2568 2 View *view;
2569
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2 if (empty) {
2570 1 view = window_open_new_file(e->window);
2571 1 view->buffer->temporary = temporary;
2572
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1 } else if (paths[0]) {
2573 view = window_open_files(e->window, paths, NULL);
2574 } else {
2575 1 view = window_add_buffer(e->window, save->buffer);
2576 1 view->cursor = save->cursor;
2577 1 set_view(view);
2578 }
2579
2580
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2 if (use_glob) {
2581 globfree(&globbuf);
2582 }
2583
2584
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2 if (!view) {
2585 // Open failed, remove new window
2586 frame_remove(e, e->window->frame);
2587 e->view = save;
2588 e->buffer = save->buffer;
2589 e->window = save->window;
2590 }
2591
2592 2 frame_debug(e->root_frame);
2593 2 return !!view;
2594 }
2595
2596 1 static bool cmd_wswap(EditorState *e, const CommandArgs *a)
2597 {
2598 1 BUG_ON(a->nr_args);
2599 1 Frame *frame = e->window->frame;
2600 1 Frame *parent = frame->parent;
2601
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1 if (!parent) {
2602 return false;
2603 }
2604
2605 1 PointerArray *pframes = &parent->frames;
2606 1 size_t current = ptr_array_xindex(pframes, frame);
2607 1 size_t next = wrapping_increment(current, pframes->count);
2608 1 ptr_array_swap(pframes, current, next);
2609 1 e->screen_update |= UPDATE_ALL_WINDOWS;
2610 1 return true;
2611 }
2612
2613 enum {
2614 // Short aliases for CommandOptions:
2615 NA = 0,
2616 RC = CMDOPT_ALLOW_IN_RC,
2617 NFAA = CMDOPT_NO_FLAGS_AFTER_ARGS,
2618 };
2619
2620 static const Command cmds[] = {
2621 {"alias", "", RC | NFAA, 1, 2, cmd_alias},
2622 {"bind", "cnqsT=", RC | NFAA, 1, 2, cmd_bind},
2623 {"blkdown", "cl", NA, 0, 0, cmd_blkdown},
2624 {"blkup", "cl", NA, 0, 0, cmd_blkup},
2625 {"bof", "cl", NA, 0, 0, cmd_bof},
2626 {"bol", "clrst", NA, 0, 0, cmd_bol},
2627 {"bolsf", "cl", NA, 0, 0, cmd_bolsf},
2628 {"bookmark", "rv", NA, 0, 0, cmd_bookmark},
2629 {"case", "lu", NA, 0, 0, cmd_case},
2630 {"cd", "v", RC, 1, 1, cmd_cd},
2631 {"center-view", "", NA, 0, 0, cmd_center_view},
2632 {"clear", "Ii", NA, 0, 0, cmd_clear},
2633 {"close", "fpqw", NA, 0, 0, cmd_close},
2634 {"command", "", NFAA, 0, 1, cmd_command},
2635 {"compile", "1ABCps", NFAA, 2, -1, cmd_compile},
2636 {"copy", "bikp", NA, 0, 1, cmd_copy},
2637 {"cursor", "", RC, 0, 3, cmd_cursor},
2638 {"cut", "", NA, 0, 0, cmd_cut},
2639 {"def-mode", "Uu", RC, 1, 16, cmd_def_mode},
2640 {"delete", "", NA, 0, 0, cmd_delete},
2641 {"delete-eol", "n", NA, 0, 0, cmd_delete_eol},
2642 {"delete-line", "S", NA, 0, 0, cmd_delete_line},
2643 {"delete-word", "s", NA, 0, 0, cmd_delete_word},
2644 {"down", "cl", NA, 0, 0, cmd_down},
2645 {"eof", "cl", NA, 0, 0, cmd_eof},
2646 {"eol", "cl", NA, 0, 0, cmd_eol},
2647 {"eolsf", "cl", NA, 0, 0, cmd_eolsf},
2648 {"erase", "", NA, 0, 0, cmd_erase},
2649 {"erase-bol", "", NA, 0, 0, cmd_erase_bol},
2650 {"erase-word", "s", NA, 0, 0, cmd_erase_word},
2651 {"errorfmt", "ci", RC, 1, 2 + ERRORFMT_CAPTURE_MAX, cmd_errorfmt},
2652 {"exec", "e=i=o=lmnpst", NFAA, 1, -1, cmd_exec},
2653 {"ft", "bcfi", RC | NFAA, 2, -1, cmd_ft},
2654 {"hi", "cq", RC | NFAA, 0, -1, cmd_hi},
2655 {"include", "bq", RC, 1, 1, cmd_include},
2656 {"insert", "km", NA, 1, 1, cmd_insert},
2657 {"join", "", NA, 0, 1, cmd_join},
2658 {"left", "cl", NA, 0, 0, cmd_left},
2659 {"line", "cl", NA, 1, 1, cmd_line},
2660 {"macro", "", NA, 1, 1, cmd_macro},
2661 {"match-bracket", "cl", NA, 0, 0, cmd_match_bracket},
2662 {"mode", "", RC, 1, 1, cmd_mode},
2663 {"move-tab", "", NA, 1, 1, cmd_move_tab},
2664 {"msg", "ABCnpw", NA, 0, 1, cmd_msg},
2665 {"new-line", "Iaim", NA, 0, 0, cmd_new_line},
2666 {"next", "", NA, 0, 0, cmd_next},
2667 {"open", "e=gt", NA, 0, -1, cmd_open},
2668 {"option", "r", RC | NFAA, 3, -1, cmd_option},
2669 {"paste", "acm", NA, 0, 0, cmd_paste},
2670 {"pgdown", "cl", NA, 0, 0, cmd_pgdown},
2671 {"pgup", "cl", NA, 0, 0, cmd_pgup},
2672 {"prev", "", NA, 0, 0, cmd_prev},
2673 {"quit", "CFHSfp", NA, 0, 1, cmd_quit},
2674 {"redo", "", NA, 0, 1, cmd_redo},
2675 {"refresh", "", NA, 0, 0, cmd_refresh},
2676 {"reopen", "", NA, 0, 0, cmd_reopen},
2677 {"repeat", "", NFAA, 2, -1, cmd_repeat},
2678 {"replace", "bcegi", NA, 1, 2, cmd_replace},
2679 {"right", "cl", NA, 0, 0, cmd_right},
2680 {"save", "Bbde=fpu", NA, 0, 1, cmd_save},
2681 {"scroll-down", "Mcl", NA, 0, 0, cmd_scroll_down},
2682 {"scroll-pgdown", "chl", NA, 0, 0, cmd_scroll_pgdown},
2683 {"scroll-pgup", "chl", NA, 0, 0, cmd_scroll_pgup},
2684 {"scroll-up", "Mcl", NA, 0, 0, cmd_scroll_up},
2685 {"search", "Haceilnprswx", NA, 0, 1, cmd_search},
2686 {"select", "kl", NA, 0, 0, cmd_select},
2687 {"select-block", "", NA, 0, 0, cmd_select_block},
2688 {"set", "gl", RC, 1, -1, cmd_set},
2689 {"setenv", "", RC, 1, 2, cmd_setenv},
2690 {"shift", "", NA, 1, 1, cmd_shift},
2691 {"show", "c", NA, 0, 2, cmd_show},
2692 {"suspend", "", NA, 0, 0, cmd_suspend},
2693 {"tag", "ABCr", NA, 0, -1, cmd_tag},
2694 {"title", "", NA, 1, 1, cmd_title},
2695 {"toggle", "gv", NA, 1, -1, cmd_toggle},
2696 {"undo", "m", NA, 0, 0, cmd_undo},
2697 {"unselect", "", NA, 0, 0, cmd_unselect},
2698 {"up", "cl", NA, 0, 0, cmd_up},
2699 {"view", "", NA, 1, 1, cmd_view},
2700 {"wclose", "fp", NA, 0, 0, cmd_wclose},
2701 {"wflip", "", NA, 0, 0, cmd_wflip},
2702 {"wnext", "", NA, 0, 0, cmd_wnext},
2703 {"word-bwd", "cls", NA, 0, 0, cmd_word_bwd},
2704 {"word-fwd", "cls", NA, 0, 0, cmd_word_fwd},
2705 {"wprev", "", NA, 0, 0, cmd_wprev},
2706 {"wrap-paragraph", "", NA, 0, 1, cmd_wrap_paragraph},
2707 {"wresize", "hv", NA, 0, 1, cmd_wresize},
2708 {"wsplit", "bghnrt", NA, 0, -1, cmd_wsplit},
2709 {"wswap", "", NA, 0, 0, cmd_wswap},
2710 };
2711
2712 269 static bool allow_macro_recording(const Command *cmd, char **args)
2713 {
2714 269 const CommandFunc fn = cmd->cmd;
2715
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269 if (fn == cmd_macro || fn == cmd_command || fn == cmd_mode) {
2716 return false;
2717 }
2718
2719
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221 if (fn == cmd_search) {
2720 168 char **args_copy = copy_string_array(args, string_array_length(args));
2721 168 CommandArgs a = cmdargs_new(args_copy);
2722 168 bool ret = true;
2723
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168 if (do_parse_args(cmd, &a) == ARGERR_NONE) {
2724
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168 if (a.nr_args == 0 && !cmdargs_has_any_flag(&a, "npw")) {
2725 // If command is "search" with no [pattern] argument or
2726 // [-n|-p|-w] flags, the command would put the editor into
2727 // search mode, which shouldn't be recorded.
2728 48 ret = false;
2729 }
2730 }
2731 168 free_string_array(args_copy);
2732 168 return ret;
2733 }
2734
2735 if (fn == cmd_exec) {
2736 // TODO: don't record -o with open/tag/eval/msg
2737 }
2738
2739 return true;
2740 }
2741
2742 24 UNITTEST {
2743 // NOLINTBEGIN(bugprone-assert-side-effect)
2744 24 const char *args[4] = {NULL};
2745 24 char **argp = (char**)args;
2746 24 const Command *cmd = find_normal_command("left");
2747 24 BUG_ON(!cmd);
2748 24 BUG_ON(!allow_macro_recording(cmd, argp));
2749
2750 24 cmd = find_normal_command("exec");
2751 24 BUG_ON(!cmd);
2752 24 BUG_ON(!allow_macro_recording(cmd, argp));
2753
2754 24 cmd = find_normal_command("command");
2755 24 BUG_ON(!cmd);
2756 24 BUG_ON(allow_macro_recording(cmd, argp));
2757
2758 24 cmd = find_normal_command("macro");
2759 24 BUG_ON(!cmd);
2760 24 BUG_ON(allow_macro_recording(cmd, argp));
2761
2762 24 cmd = find_normal_command("search");
2763 24 BUG_ON(!cmd);
2764 24 BUG_ON(allow_macro_recording(cmd, argp));
2765 24 args[0] = "xyz";
2766 24 BUG_ON(!allow_macro_recording(cmd, argp));
2767 24 args[0] = "-n";
2768 24 BUG_ON(!allow_macro_recording(cmd, argp));
2769 24 args[0] = "-p";
2770 24 BUG_ON(!allow_macro_recording(cmd, argp));
2771 24 args[0] = "-w";
2772 24 BUG_ON(!allow_macro_recording(cmd, argp));
2773 24 args[0] = "-Hr";
2774 24 BUG_ON(allow_macro_recording(cmd, argp));
2775 24 args[1] = "str";
2776 24 BUG_ON(!allow_macro_recording(cmd, argp));
2777 // NOLINTEND(bugprone-assert-side-effect)
2778 24 }
2779
2780 5 static void record_command(EditorState *e, const Command *cmd, char **args)
2781 {
2782
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5 if (!allow_macro_recording(cmd, args)) {
2783 return;
2784 }
2785 5 macro_command_hook(&e->macro, cmd->name, args);
2786 }
2787
2788 6837 const Command *find_normal_command(const char *name)
2789 {
2790 6837 return BSEARCH(name, cmds, command_cmp);
2791 }
2792
2793 const CommandSet normal_commands = {
2794 .lookup = find_normal_command,
2795 .macro_record = record_command,
2796 };
2797
2798 120 const char *find_normal_alias(const EditorState *e, const char *name)
2799 {
2800 120 return find_alias(&e->aliases, name);
2801 }
2802
2803 168 bool handle_normal_command(EditorState *e, const char *cmd, bool allow_recording)
2804 {
2805 168 CommandRunner runner = normal_mode_cmdrunner(e);
2806 168 BUG_ON(runner.flags & CMDRUNNER_ALLOW_RECORDING);
2807
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168 runner.flags |= allow_recording ? CMDRUNNER_ALLOW_RECORDING : 0;
2808 168 return handle_command(&runner, cmd);
2809 }
2810
2811 48 void exec_normal_config(EditorState *e, StringView config)
2812 {
2813 48 CommandRunner runner = normal_mode_cmdrunner(e);
2814 48 exec_config(&runner, config);
2815 48 }
2816
2817 106 SystemErrno read_normal_config(EditorState *e, const char *filename, ConfigFlags flags)
2818 {
2819 106 CommandRunner runner = normal_mode_cmdrunner(e);
2820 106 return read_config(&runner, filename, flags);
2821 }
2822
2823 5 void collect_normal_commands(PointerArray *a, const char *prefix)
2824 {
2825 5 COLLECT_STRING_FIELDS(cmds, name, a, prefix);
2826 5 }
2827
2828 24 UNITTEST {
2829 24 CHECK_BSEARCH_ARRAY(cmds, name);
2830
2831
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2160 for (size_t i = 0, n = ARRAYLEN(cmds); i < n; i++) {
2832 // Check that flags array is null-terminated within bounds
2833 2136 const char *const flags = cmds[i].flags;
2834 2136 BUG_ON(flags[ARRAYLEN(cmds[0].flags) - 1] != '\0');
2835
2836 // Count number of real flags (i.e. not including '=')
2837 size_t nr_real_flags = 0;
2838
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6480 for (size_t j = 0; flags[j]; j++) {
2839 4344 unsigned char flag = flags[j];
2840
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4344 if (ascii_isalnum(flag)) {
2841 4200 nr_real_flags++;
2842
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144 } else if (flag != '=') {
2843 BUG("invalid command flag: 0x%02hhX", flag);
2844 }
2845 }
2846
2847 // Check that max. number of real flags fits in CommandArgs::flags
2848 // array (and also leaves 1 byte for null-terminator)
2849 2136 CommandArgs a;
2850 2136 BUG_ON(nr_real_flags >= ARRAYLEN(a.flags));
2851 }
2852 24 }
2853