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bfe13c81 KB |
1 | /* |
2 | * Copyright (c) 1988 Mark Nudleman | |
1e3ab5ee KB |
3 | * Copyright (c) 1988, 1993 |
4 | * The Regents of the University of California. All rights reserved. | |
bfe13c81 | 5 | * |
f15db449 | 6 | * %sccs.include.redist.c% |
bfe13c81 KB |
7 | */ |
8 | ||
9 | #ifndef lint | |
1e3ab5ee | 10 | static char sccsid[] = "@(#)command.c 8.1 (Berkeley) %G%"; |
bfe13c81 KB |
11 | #endif /* not lint */ |
12 | ||
bc258617 KB |
13 | #include <sys/param.h> |
14 | #include <stdio.h> | |
15 | #include <ctype.h> | |
16 | #include <less.h> | |
f5506e0f | 17 | #include "pathnames.h" |
bfe13c81 KB |
18 | |
19 | #define NO_MCA 0 | |
20 | #define MCA_DONE 1 | |
21 | #define MCA_MORE 2 | |
22 | ||
bc258617 | 23 | extern int erase_char, kill_char, werase_char; |
bfe13c81 KB |
24 | extern int ispipe; |
25 | extern int sigs; | |
26 | extern int quit_at_eof; | |
27 | extern int hit_eof; | |
28 | extern int sc_width; | |
29 | extern int sc_height; | |
30 | extern int sc_window; | |
31 | extern int curr_ac; | |
32 | extern int ac; | |
33 | extern int quitting; | |
34 | extern int scroll; | |
bfe13c81 KB |
35 | extern int screen_trashed; /* The screen has been overwritten */ |
36 | ||
37 | static char cmdbuf[120]; /* Buffer for holding a multi-char command */ | |
bfe13c81 KB |
38 | static char *cp; /* Pointer into cmdbuf */ |
39 | static int cmd_col; /* Current column of the multi-char command */ | |
bc258617 | 40 | static int longprompt; /* if stat command instead of prompt */ |
bfe13c81 KB |
41 | static int mca; /* The multicharacter command (action) */ |
42 | static int last_mca; /* The previous mca */ | |
43 | static int number; /* The number typed by the user */ | |
44 | static int wsearch; /* Search for matches (1) or non-matches (0) */ | |
45 | ||
dce1e0a2 KB |
46 | #define CMD_RESET cp = cmdbuf /* reset command buffer to empty */ |
47 | #define CMD_EXEC lower_left(); flush() | |
bfe13c81 | 48 | |
dce1e0a2 | 49 | /* backspace in command buffer. */ |
bc258617 | 50 | static |
bfe13c81 KB |
51 | cmd_erase() |
52 | { | |
dce1e0a2 KB |
53 | /* |
54 | * backspace past beginning of the string: this usually means | |
55 | * abort the command. | |
56 | */ | |
bfe13c81 | 57 | if (cp == cmdbuf) |
bc258617 | 58 | return(1); |
bfe13c81 | 59 | |
dce1e0a2 | 60 | /* erase an extra character, for the carat. */ |
bc258617 | 61 | if (CONTROL_CHAR(*--cp)) { |
bfe13c81 | 62 | backspace(); |
bc258617 | 63 | --cmd_col; |
bfe13c81 | 64 | } |
dce1e0a2 | 65 | |
bfe13c81 | 66 | backspace(); |
bc258617 KB |
67 | --cmd_col; |
68 | return(0); | |
bfe13c81 KB |
69 | } |
70 | ||
dce1e0a2 | 71 | /* set up the display to start a new multi-character command. */ |
bfe13c81 KB |
72 | start_mca(action, prompt) |
73 | int action; | |
74 | char *prompt; | |
75 | { | |
76 | lower_left(); | |
77 | clear_eol(); | |
78 | putstr(prompt); | |
79 | cmd_col = strlen(prompt); | |
80 | mca = action; | |
81 | } | |
82 | ||
83 | /* | |
dce1e0a2 | 84 | * process a single character of a multi-character command, such as |
bfe13c81 KB |
85 | * a number, or the pattern of a search command. |
86 | */ | |
bc258617 | 87 | static |
bfe13c81 KB |
88 | cmd_char(c) |
89 | int c; | |
90 | { | |
91 | if (c == erase_char) | |
bc258617 KB |
92 | return(cmd_erase()); |
93 | /* in this order, in case werase == erase_char */ | |
94 | if (c == werase_char) { | |
95 | if (cp > cmdbuf) { | |
96 | while (isspace(cp[-1]) && !cmd_erase()); | |
97 | while (!isspace(cp[-1]) && !cmd_erase()); | |
98 | while (isspace(cp[-1]) && !cmd_erase()); | |
99 | } | |
100 | return(cp == cmdbuf); | |
101 | } | |
102 | if (c == kill_char) { | |
103 | while (!cmd_erase()); | |
104 | return(1); | |
105 | } | |
106 | /* | |
107 | * No room in the command buffer, or no room on the screen; | |
108 | * {{ Could get fancy here; maybe shift the displayed line | |
109 | * and make room for more chars, like ksh. }} | |
110 | */ | |
111 | if (cp >= &cmdbuf[sizeof(cmdbuf)-1] || cmd_col >= sc_width-3) | |
bfe13c81 | 112 | bell(); |
bc258617 | 113 | else { |
bfe13c81 | 114 | *cp++ = c; |
bc258617 | 115 | if (CONTROL_CHAR(c)) { |
bfe13c81 KB |
116 | putchr('^'); |
117 | cmd_col++; | |
bc258617 | 118 | c = CARAT_CHAR(c); |
bfe13c81 KB |
119 | } |
120 | putchr(c); | |
121 | cmd_col++; | |
122 | } | |
bc258617 | 123 | return(0); |
bfe13c81 KB |
124 | } |
125 | ||
bfe13c81 KB |
126 | prompt() |
127 | { | |
00f91e6d | 128 | extern int linenums, short_file; |
7a3f847f | 129 | extern char *current_name, *firstsearch, *next_name; |
bc258617 KB |
130 | off_t len, pos, ch_length(), position(), forw_line(); |
131 | char pbuf[40]; | |
bfe13c81 KB |
132 | |
133 | /* | |
bc258617 KB |
134 | * if nothing is displayed yet, display starting from line 1; |
135 | * if search string provided, go there instead. | |
bfe13c81 | 136 | */ |
bc258617 KB |
137 | if (position(TOP) == NULL_POSITION) { |
138 | if (forw_line((off_t)0) == NULL_POSITION) | |
139 | return(0); | |
140 | if (!firstsearch || !search(1, firstsearch, 1, 1)) | |
141 | jump_back(1); | |
142 | } | |
bfe13c81 KB |
143 | else if (screen_trashed) |
144 | repaint(); | |
145 | ||
bc258617 | 146 | /* if no -e flag and we've hit EOF on the last file, quit. */ |
00f91e6d | 147 | if ((!quit_at_eof || short_file) && hit_eof && curr_ac + 1 >= ac) |
bfe13c81 KB |
148 | quit(); |
149 | ||
bc258617 | 150 | /* select the proper prompt and display it. */ |
bfe13c81 KB |
151 | lower_left(); |
152 | clear_eol(); | |
bc258617 KB |
153 | if (longprompt) { |
154 | so_enter(); | |
155 | putstr(current_name); | |
156 | putstr(":"); | |
157 | if (!ispipe) { | |
158 | (void)sprintf(pbuf, " file %d/%d", curr_ac + 1, ac); | |
159 | putstr(pbuf); | |
160 | } | |
161 | if (linenums) { | |
6d713a99 | 162 | (void)sprintf(pbuf, " line %d", currline(BOTTOM)); |
bc258617 KB |
163 | putstr(pbuf); |
164 | } | |
6d713a99 | 165 | if ((pos = position(BOTTOM)) != NULL_POSITION) { |
4395015c | 166 | (void)sprintf(pbuf, " byte %qd", pos); |
bc258617 KB |
167 | putstr(pbuf); |
168 | if (!ispipe && (len = ch_length())) { | |
4395015c | 169 | (void)sprintf(pbuf, "/%qd pct %qd%%", |
6d713a99 | 170 | len, ((100 * pos) / len)); |
bc258617 KB |
171 | putstr(pbuf); |
172 | } | |
173 | } | |
174 | so_exit(); | |
175 | longprompt = 0; | |
176 | } | |
bc258617 | 177 | else { |
bfe13c81 | 178 | so_enter(); |
bc258617 KB |
179 | putstr(current_name); |
180 | if (hit_eof) | |
7a3f847f | 181 | if (next_name) { |
d93c9cef CL |
182 | putstr(": END (next file: "); |
183 | putstr(next_name); | |
184 | putstr(")"); | |
7a3f847f KB |
185 | } |
186 | else | |
187 | putstr(": END"); | |
e80c9812 KB |
188 | else if (!ispipe && |
189 | (pos = position(BOTTOM)) != NULL_POSITION && | |
190 | (len = ch_length())) { | |
4395015c | 191 | (void)sprintf(pbuf, " (%qd%%)", ((100 * pos) / len)); |
bc258617 KB |
192 | putstr(pbuf); |
193 | } | |
bfe13c81 KB |
194 | so_exit(); |
195 | } | |
bc258617 | 196 | return(1); |
bfe13c81 KB |
197 | } |
198 | ||
dce1e0a2 | 199 | /* get command character. */ |
bc258617 | 200 | static |
bfe13c81 KB |
201 | getcc() |
202 | { | |
62b94f40 KB |
203 | extern int cmdstack; |
204 | int ch; | |
9c6f1f3b | 205 | off_t position(); |
62b94f40 KB |
206 | |
207 | /* left over from error() routine. */ | |
208 | if (cmdstack) { | |
209 | ch = cmdstack; | |
210 | cmdstack = NULL; | |
211 | return(ch); | |
212 | } | |
bc258617 | 213 | if (cp > cmdbuf && position(TOP) == NULL_POSITION) { |
bfe13c81 | 214 | /* |
bc258617 KB |
215 | * Command is incomplete, so try to complete it. |
216 | * There are only two cases: | |
217 | * 1. We have "/string" but no newline. Add the \n. | |
218 | * 2. We have a number but no command. Treat as #g. | |
219 | * (This is all pretty hokey.) | |
bfe13c81 | 220 | */ |
bc258617 KB |
221 | if (mca != A_DIGIT) |
222 | /* Not a number; must be search string */ | |
223 | return('\n'); | |
224 | else | |
225 | /* A number; append a 'g' */ | |
226 | return('g'); | |
bfe13c81 | 227 | } |
bc258617 | 228 | return(getchr()); |
bfe13c81 KB |
229 | } |
230 | ||
dce1e0a2 | 231 | /* execute a multicharacter command. */ |
bc258617 | 232 | static |
bfe13c81 KB |
233 | exec_mca() |
234 | { | |
bc258617 KB |
235 | extern int file; |
236 | extern char *tagfile; | |
bfe13c81 | 237 | register char *p; |
bc258617 | 238 | char *glob(); |
bfe13c81 KB |
239 | |
240 | *cp = '\0'; | |
dce1e0a2 | 241 | CMD_EXEC; |
bc258617 | 242 | switch (mca) { |
bfe13c81 | 243 | case A_F_SEARCH: |
bc258617 | 244 | (void)search(1, cmdbuf, number, wsearch); |
bfe13c81 KB |
245 | break; |
246 | case A_B_SEARCH: | |
bc258617 | 247 | (void)search(0, cmdbuf, number, wsearch); |
bfe13c81 KB |
248 | break; |
249 | case A_EXAMINE: | |
bc258617 KB |
250 | for (p = cmdbuf; isspace(*p); ++p); |
251 | (void)edit(glob(p)); | |
252 | break; | |
253 | case A_TAGFILE: | |
254 | for (p = cmdbuf; isspace(*p); ++p); | |
255 | findtag(p); | |
256 | if (tagfile == NULL) | |
257 | break; | |
258 | if (edit(tagfile)) | |
259 | (void)tagsearch(); | |
bfe13c81 | 260 | break; |
bfe13c81 KB |
261 | } |
262 | } | |
263 | ||
dce1e0a2 | 264 | /* add a character to a multi-character command. */ |
bc258617 | 265 | static |
bfe13c81 KB |
266 | mca_char(c) |
267 | int c; | |
268 | { | |
bc258617 KB |
269 | switch (mca) { |
270 | case 0: /* not in a multicharacter command. */ | |
271 | case A_PREFIX: /* in the prefix of a command. */ | |
272 | return(NO_MCA); | |
bfe13c81 KB |
273 | case A_DIGIT: |
274 | /* | |
275 | * Entering digits of a number. | |
276 | * Terminated by a non-digit. | |
277 | */ | |
bc258617 KB |
278 | if (!isascii(c) || !isdigit(c) && |
279 | c != erase_char && c != kill_char && c != werase_char) { | |
bfe13c81 KB |
280 | /* |
281 | * Not part of the number. | |
282 | * Treat as a normal command character. | |
283 | */ | |
dce1e0a2 KB |
284 | *cp = '\0'; |
285 | number = atoi(cmdbuf); | |
286 | CMD_RESET; | |
bfe13c81 | 287 | mca = 0; |
bc258617 | 288 | return(NO_MCA); |
bfe13c81 KB |
289 | } |
290 | break; | |
291 | } | |
292 | ||
293 | /* | |
294 | * Any other multicharacter command | |
295 | * is terminated by a newline. | |
296 | */ | |
bc258617 | 297 | if (c == '\n' || c == '\r') { |
bfe13c81 | 298 | exec_mca(); |
bc258617 | 299 | return(MCA_DONE); |
bfe13c81 | 300 | } |
dce1e0a2 KB |
301 | |
302 | /* append the char to the command buffer. */ | |
bfe13c81 | 303 | if (cmd_char(c)) |
bc258617 | 304 | return(MCA_DONE); |
dce1e0a2 | 305 | |
bc258617 | 306 | return(MCA_MORE); |
bfe13c81 KB |
307 | } |
308 | ||
309 | /* | |
310 | * Main command processor. | |
311 | * Accept and execute commands until a quit command, then return. | |
312 | */ | |
bfe13c81 KB |
313 | commands() |
314 | { | |
315 | register int c; | |
316 | register int action; | |
317 | ||
318 | last_mca = 0; | |
319 | scroll = (sc_height + 1) / 2; | |
320 | ||
bc258617 | 321 | for (;;) { |
bfe13c81 KB |
322 | mca = 0; |
323 | number = 0; | |
324 | ||
325 | /* | |
326 | * See if any signals need processing. | |
327 | */ | |
bc258617 | 328 | if (sigs) { |
bfe13c81 KB |
329 | psignals(); |
330 | if (quitting) | |
331 | quit(); | |
332 | } | |
bfe13c81 KB |
333 | /* |
334 | * Display prompt and accept a character. | |
335 | */ | |
dce1e0a2 | 336 | CMD_RESET; |
bc258617 KB |
337 | if (!prompt()) { |
338 | next_file(1); | |
339 | continue; | |
340 | } | |
bfe13c81 KB |
341 | noprefix(); |
342 | c = getcc(); | |
343 | ||
f5167107 | 344 | again: if (sigs) |
bfe13c81 KB |
345 | continue; |
346 | ||
347 | /* | |
348 | * If we are in a multicharacter command, call mca_char. | |
349 | * Otherwise we call cmd_decode to determine the | |
350 | * action to be performed. | |
351 | */ | |
352 | if (mca) | |
bc258617 | 353 | switch (mca_char(c)) { |
bfe13c81 KB |
354 | case MCA_MORE: |
355 | /* | |
356 | * Need another character. | |
357 | */ | |
358 | c = getcc(); | |
359 | goto again; | |
360 | case MCA_DONE: | |
361 | /* | |
362 | * Command has been handled by mca_char. | |
363 | * Start clean with a prompt. | |
364 | */ | |
365 | continue; | |
366 | case NO_MCA: | |
367 | /* | |
368 | * Not a multi-char command | |
369 | * (at least, not anymore). | |
370 | */ | |
371 | break; | |
372 | } | |
373 | ||
dce1e0a2 KB |
374 | /* decode the command character and decide what to do. */ |
375 | switch (action = cmd_decode(c)) { | |
376 | case A_DIGIT: /* first digit of a number */ | |
bfe13c81 KB |
377 | start_mca(A_DIGIT, ":"); |
378 | goto again; | |
dce1e0a2 KB |
379 | case A_F_SCREEN: /* forward one screen */ |
380 | CMD_EXEC; | |
381 | if (number <= 0 && (number = sc_window) <= 0) | |
bfe13c81 | 382 | number = sc_height - 1; |
bfe13c81 KB |
383 | forward(number, 1); |
384 | break; | |
dce1e0a2 KB |
385 | case A_B_SCREEN: /* backward one screen */ |
386 | CMD_EXEC; | |
387 | if (number <= 0 && (number = sc_window) <= 0) | |
bfe13c81 | 388 | number = sc_height - 1; |
bfe13c81 KB |
389 | backward(number, 1); |
390 | break; | |
dce1e0a2 KB |
391 | case A_F_LINE: /* forward N (default 1) line */ |
392 | CMD_EXEC; | |
393 | forward(number <= 0 ? 1 : number, 0); | |
bfe13c81 | 394 | break; |
dce1e0a2 KB |
395 | case A_B_LINE: /* backward N (default 1) line */ |
396 | CMD_EXEC; | |
397 | backward(number <= 0 ? 1 : number, 0); | |
bfe13c81 | 398 | break; |
dce1e0a2 KB |
399 | case A_F_SCROLL: /* forward N lines */ |
400 | CMD_EXEC; | |
bfe13c81 KB |
401 | if (number > 0) |
402 | scroll = number; | |
bfe13c81 KB |
403 | forward(scroll, 0); |
404 | break; | |
dce1e0a2 KB |
405 | case A_B_SCROLL: /* backward N lines */ |
406 | CMD_EXEC; | |
bfe13c81 KB |
407 | if (number > 0) |
408 | scroll = number; | |
bfe13c81 KB |
409 | backward(scroll, 0); |
410 | break; | |
dce1e0a2 KB |
411 | case A_FREPAINT: /* flush buffers and repaint */ |
412 | if (!ispipe) { | |
bfe13c81 KB |
413 | ch_init(0, 0); |
414 | clr_linenum(); | |
415 | } | |
dce1e0a2 | 416 | /* FALLTHROUGH */ |
e810d3c9 | 417 | case A_REPAINT: /* repaint the screen */ |
dce1e0a2 | 418 | CMD_EXEC; |
bfe13c81 KB |
419 | repaint(); |
420 | break; | |
dce1e0a2 KB |
421 | case A_GOLINE: /* go to line N, default 1 */ |
422 | CMD_EXEC; | |
bfe13c81 KB |
423 | if (number <= 0) |
424 | number = 1; | |
bfe13c81 KB |
425 | jump_back(number); |
426 | break; | |
dce1e0a2 KB |
427 | case A_PERCENT: /* go to percent of file */ |
428 | CMD_EXEC; | |
bfe13c81 KB |
429 | if (number < 0) |
430 | number = 0; | |
dce1e0a2 | 431 | else if (number > 100) |
bfe13c81 | 432 | number = 100; |
bfe13c81 KB |
433 | jump_percent(number); |
434 | break; | |
dce1e0a2 KB |
435 | case A_GOEND: /* go to line N, default end */ |
436 | CMD_EXEC; | |
bfe13c81 KB |
437 | if (number <= 0) |
438 | jump_forw(); | |
439 | else | |
440 | jump_back(number); | |
441 | break; | |
bc258617 KB |
442 | case A_STAT: /* print file name, etc. */ |
443 | longprompt = 1; | |
444 | continue; | |
bc258617 | 445 | case A_QUIT: /* exit */ |
bfe13c81 | 446 | quit(); |
dce1e0a2 | 447 | case A_F_SEARCH: /* search for a pattern */ |
bfe13c81 | 448 | case A_B_SEARCH: |
bfe13c81 KB |
449 | if (number <= 0) |
450 | number = 1; | |
451 | start_mca(action, (action==A_F_SEARCH) ? "/" : "?"); | |
452 | last_mca = mca; | |
453 | wsearch = 1; | |
454 | c = getcc(); | |
bc258617 | 455 | if (c == '!') { |
bfe13c81 | 456 | /* |
dce1e0a2 KB |
457 | * Invert the sense of the search; set wsearch |
458 | * to 0 and get a new character for the start | |
459 | * of the pattern. | |
bfe13c81 KB |
460 | */ |
461 | start_mca(action, | |
dce1e0a2 | 462 | (action == A_F_SEARCH) ? "!/" : "!?"); |
bfe13c81 KB |
463 | wsearch = 0; |
464 | c = getcc(); | |
465 | } | |
466 | goto again; | |
dce1e0a2 | 467 | case A_AGAIN_SEARCH: /* repeat previous search */ |
bfe13c81 KB |
468 | if (number <= 0) |
469 | number = 1; | |
470 | if (wsearch) | |
471 | start_mca(last_mca, | |
dce1e0a2 | 472 | (last_mca == A_F_SEARCH) ? "/" : "?"); |
bfe13c81 KB |
473 | else |
474 | start_mca(last_mca, | |
dce1e0a2 KB |
475 | (last_mca == A_F_SEARCH) ? "!/" : "!?"); |
476 | CMD_EXEC; | |
bc258617 KB |
477 | (void)search(mca == A_F_SEARCH, (char *)NULL, |
478 | number, wsearch); | |
bfe13c81 | 479 | break; |
dce1e0a2 | 480 | case A_HELP: /* help */ |
bfe13c81 KB |
481 | lower_left(); |
482 | clear_eol(); | |
483 | putstr("help"); | |
dce1e0a2 | 484 | CMD_EXEC; |
bfe13c81 KB |
485 | help(); |
486 | break; | |
dce1e0a2 KB |
487 | case A_TAGFILE: /* tag a new file */ |
488 | CMD_RESET; | |
bc258617 KB |
489 | start_mca(A_TAGFILE, "Tag: "); |
490 | c = getcc(); | |
491 | goto again; | |
dce1e0a2 KB |
492 | case A_FILE_LIST: /* show list of file names */ |
493 | CMD_EXEC; | |
e810d3c9 KB |
494 | showlist(); |
495 | repaint(); | |
496 | break; | |
dce1e0a2 KB |
497 | case A_EXAMINE: /* edit a new file */ |
498 | CMD_RESET; | |
bfe13c81 KB |
499 | start_mca(A_EXAMINE, "Examine: "); |
500 | c = getcc(); | |
501 | goto again; | |
dce1e0a2 KB |
502 | case A_VISUAL: /* invoke the editor */ |
503 | if (ispipe) { | |
bfe13c81 KB |
504 | error("Cannot edit standard input"); |
505 | break; | |
506 | } | |
dce1e0a2 | 507 | CMD_EXEC; |
1a2c8d49 | 508 | editfile(); |
bfe13c81 KB |
509 | ch_init(0, 0); |
510 | clr_linenum(); | |
511 | break; | |
dce1e0a2 | 512 | case A_NEXT_FILE: /* examine next file */ |
bfe13c81 KB |
513 | if (number <= 0) |
514 | number = 1; | |
515 | next_file(number); | |
516 | break; | |
dce1e0a2 | 517 | case A_PREV_FILE: /* examine previous file */ |
bfe13c81 KB |
518 | if (number <= 0) |
519 | number = 1; | |
520 | prev_file(number); | |
521 | break; | |
dce1e0a2 | 522 | case A_SETMARK: /* set a mark */ |
bfe13c81 KB |
523 | lower_left(); |
524 | clear_eol(); | |
525 | start_mca(A_SETMARK, "mark: "); | |
526 | c = getcc(); | |
527 | if (c == erase_char || c == kill_char) | |
528 | break; | |
529 | setmark(c); | |
530 | break; | |
dce1e0a2 | 531 | case A_GOMARK: /* go to mark */ |
bfe13c81 KB |
532 | lower_left(); |
533 | clear_eol(); | |
534 | start_mca(A_GOMARK, "goto mark: "); | |
535 | c = getcc(); | |
536 | if (c == erase_char || c == kill_char) | |
537 | break; | |
538 | gomark(c); | |
539 | break; | |
bfe13c81 KB |
540 | case A_PREFIX: |
541 | /* | |
542 | * The command is incomplete (more chars are needed). | |
dce1e0a2 KB |
543 | * Display the current char so the user knows what's |
544 | * going on and get another character. | |
bfe13c81 KB |
545 | */ |
546 | if (mca != A_PREFIX) | |
dce1e0a2 KB |
547 | start_mca(A_PREFIX, ""); |
548 | if (CONTROL_CHAR(c)) { | |
bfe13c81 | 549 | putchr('^'); |
bc258617 | 550 | c = CARAT_CHAR(c); |
bfe13c81 KB |
551 | } |
552 | putchr(c); | |
553 | c = getcc(); | |
554 | goto again; | |
bfe13c81 KB |
555 | default: |
556 | bell(); | |
557 | break; | |
558 | } | |
559 | } | |
560 | } | |
1a2c8d49 | 561 | |
1a2c8d49 KB |
562 | editfile() |
563 | { | |
bc258617 | 564 | extern char *current_file; |
1a2c8d49 KB |
565 | static int dolinenumber; |
566 | static char *editor; | |
567 | int c; | |
bc258617 | 568 | char buf[MAXPATHLEN * 2 + 20], *getenv(); |
1a2c8d49 KB |
569 | |
570 | if (editor == NULL) { | |
571 | editor = getenv("EDITOR"); | |
572 | /* pass the line number to vi */ | |
573 | if (editor == NULL || *editor == '\0') { | |
f5506e0f | 574 | editor = _PATH_VI; |
1a2c8d49 KB |
575 | dolinenumber = 1; |
576 | } | |
577 | else | |
578 | dolinenumber = 0; | |
579 | } | |
580 | if (dolinenumber && (c = currline(MIDDLE))) | |
581 | (void)sprintf(buf, "%s +%d %s", editor, c, current_file); | |
582 | else | |
583 | (void)sprintf(buf, "%s %s", editor, current_file); | |
584 | lsystem(buf); | |
585 | } | |
e810d3c9 | 586 | |
e810d3c9 KB |
587 | showlist() |
588 | { | |
589 | extern int sc_width; | |
590 | extern char **av; | |
591 | register int indx, width; | |
592 | int len; | |
593 | char *p; | |
594 | ||
595 | if (ac <= 0) { | |
596 | error("No files provided as arguments."); | |
597 | return; | |
598 | } | |
599 | for (width = indx = 0; indx < ac;) { | |
600 | p = strcmp(av[indx], "-") ? av[indx] : "stdin"; | |
601 | len = strlen(p) + 1; | |
602 | if (curr_ac == indx) | |
603 | len += 2; | |
604 | if (width + len + 1 >= sc_width) { | |
605 | if (!width) { | |
606 | if (curr_ac == indx) | |
607 | putchr('['); | |
608 | putstr(p); | |
609 | if (curr_ac == indx) | |
610 | putchr(']'); | |
611 | ++indx; | |
612 | } | |
613 | width = 0; | |
614 | putchr('\n'); | |
615 | continue; | |
616 | } | |
617 | if (width) | |
618 | putchr(' '); | |
619 | if (curr_ac == indx) | |
620 | putchr('['); | |
621 | putstr(p); | |
622 | if (curr_ac == indx) | |
623 | putchr(']'); | |
624 | width += len; | |
625 | ++indx; | |
626 | } | |
627 | putchr('\n'); | |
628 | error((char *)NULL); | |
629 | } |