1 /* $Header: /p/tcsh/cvsroot/tcsh/tc.prompt.c,v 3.70 2011/10/27 22:41:06 christos Exp $ */
3 * tc.prompt.c: Prompt printing stuff
6 * Copyright (c) 1980, 1991 The Regents of the University of California.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 RCSID("$tcsh: tc.prompt.c,v 3.70 2011/10/27 22:41:06 christos Exp $")
41 * kfk 21oct1983 -- add @ (time) and / ($cwd) in prompt.
42 * PWP 4/27/87 -- rearange for tcsh.
43 * mrdch@com.tau.edu.il 6/26/89 - added ~, T and .# - rearanged to switch()
44 * instead of if/elseif
45 * Luke Mewburn, <lukem@cs.rmit.edu.au>
46 * 6-Sep-91 changed date format
47 * 16-Feb-94 rewrote directory prompt code, added $ellipsis
48 * 29-Dec-96 added rprompt support
51 static const char *month_list[12];
52 static const char *day_list[7];
60 setlocale(LC_TIME, "");
62 for (i = 0; i < 12; i++)
63 xfree((ptr_t) month_list[i]);
64 month_list[0] = strsave(_time_info->abbrev_month[0]);
65 month_list[1] = strsave(_time_info->abbrev_month[1]);
66 month_list[2] = strsave(_time_info->abbrev_month[2]);
67 month_list[3] = strsave(_time_info->abbrev_month[3]);
68 month_list[4] = strsave(_time_info->abbrev_month[4]);
69 month_list[5] = strsave(_time_info->abbrev_month[5]);
70 month_list[6] = strsave(_time_info->abbrev_month[6]);
71 month_list[7] = strsave(_time_info->abbrev_month[7]);
72 month_list[8] = strsave(_time_info->abbrev_month[8]);
73 month_list[9] = strsave(_time_info->abbrev_month[9]);
74 month_list[10] = strsave(_time_info->abbrev_month[10]);
75 month_list[11] = strsave(_time_info->abbrev_month[11]);
77 for (i = 0; i < 7; i++)
78 xfree((ptr_t) day_list[i]);
79 day_list[0] = strsave(_time_info->abbrev_wkday[0]);
80 day_list[1] = strsave(_time_info->abbrev_wkday[1]);
81 day_list[2] = strsave(_time_info->abbrev_wkday[2]);
82 day_list[3] = strsave(_time_info->abbrev_wkday[3]);
83 day_list[4] = strsave(_time_info->abbrev_wkday[4]);
84 day_list[5] = strsave(_time_info->abbrev_wkday[5]);
85 day_list[6] = strsave(_time_info->abbrev_wkday[6]);
87 month_list[0] = "Jan";
88 month_list[1] = "Feb";
89 month_list[2] = "Mar";
90 month_list[3] = "Apr";
91 month_list[4] = "May";
92 month_list[5] = "Jun";
93 month_list[6] = "Jul";
94 month_list[7] = "Aug";
95 month_list[8] = "Sep";
96 month_list[9] = "Oct";
97 month_list[10] = "Nov";
98 month_list[11] = "Dec";
111 printprompt(int promptno, const char *str)
113 static const Char *ocp = NULL;
114 static const char *ostr = NULL;
115 time_t lclock = time(NULL);
121 cp = varval(STRprompt);
124 cp = varval(STRprompt2);
127 cp = varval(STRprompt3);
135 cp = varval(STRprompt);
146 Prompt = tprintf(FMT_PROMPT, cp, str, lclock, NULL);
148 for (cp = Prompt; *cp ; )
149 (void) putwraw(*cp++);
156 if (promptno == 0) { /* determine rprompt if using main prompt */
157 cp = varval(STRrprompt);
158 RPrompt = tprintf(FMT_PROMPT, cp, NULL, lclock, NULL);
159 /* if not editing, put rprompt after prompt */
160 if (!editing && RPrompt[0] != '\0') {
161 for (cp = RPrompt; *cp ; )
162 (void) putwraw(*cp++);
171 tprintf_append_mbs(struct Strbuf *buf, const char *mbs, Char attributes)
176 mbs += one_mbtowc(&wc, mbs, MB_LEN_MAX);
177 Strbuf_append1(buf, wc | attributes);
182 tprintf(int what, const Char *fmt, const char *str, time_t tim, ptr_t info)
184 struct Strbuf buf = Strbuf_INIT;
187 static int print_prompt_did_ding = 0;
191 const Char *cp = fmt;
193 struct tm *t = localtime(&tim);
196 static Char *olduser = NULL;
200 cleanup_push(&buf, Strbuf_cleanup);
202 if ((*cp == '%') && ! (cp[1] == '\0')) {
206 if (what == FMT_HISTORY) {
207 cz = fmthist('R', info);
208 tprintf_append_mbs(&buf, cz, attributes);
212 tprintf_append_mbs(&buf, str, attributes);
216 Scp = (uid == 0 || euid == 0) ? PRCHROOT : PRCH;
218 Strbuf_append1(&buf, attributes | Scp);
224 cz = fmthist('h', info);
227 cz = xasprintf("%d", *(int *)info);
230 cz = xasprintf("%d", eventno + 1);
233 tprintf_append_mbs(&buf, cz, attributes);
236 case 'T': /* 24 hour format */
238 case 't': /* 12 hour am/pm format */
239 case 'p': /* With seconds */
245 /* addition by Hans J. Albertsson */
246 /* and another adapted from Justin Bur */
247 if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
255 } /* else do a 24 hour clock */
257 /* "DING!" stuff by Hans also */
258 if (t->tm_min || print_prompt_did_ding ||
259 what != FMT_PROMPT || adrof(STRnoding)) {
261 print_prompt_did_ding = 0;
263 * Pad hour to 2 characters if padhour is set,
264 * by ADAM David Alan Martin
266 p = Itoa(hr, adrof(STRpadhour) ? 2 : 0, attributes);
267 Strbuf_append(&buf, p);
269 Strbuf_append1(&buf, attributes | ':');
270 p = Itoa(t->tm_min, 2, attributes);
271 Strbuf_append(&buf, p);
273 if (*cp == 'p' || *cp == 'P') {
274 Strbuf_append1(&buf, attributes | ':');
275 p = Itoa(t->tm_sec, 2, attributes);
276 Strbuf_append(&buf, p);
279 if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
280 Strbuf_append1(&buf, attributes | ampm);
281 Strbuf_append1(&buf, attributes | 'm');
284 else { /* we need to ding */
287 for (i = 0; STRDING[i] != 0; i++)
288 Strbuf_append1(&buf, attributes | STRDING[i]);
289 print_prompt_did_ding = 1;
297 cz = who_info(info, 'M');
299 #endif /* HAVENOUTMP */
302 * Bug pointed out by Laurent Dami <dami@cui.unige.ch>: don't
303 * derefrence that NULL (if HOST is not set)...
306 tprintf_append_mbs(&buf, cz, attributes);
315 scz = cz = who_info(info, 'm');
317 #endif /* HAVENOUTMP */
321 while (*cz != 0 && (what == FMT_WHO || *cz != '.')) {
324 cz += one_mbtowc(&wc, cz, MB_LEN_MAX);
325 Strbuf_append1(&buf, wc | attributes);
332 /* lukem: new directory prompt code */
339 if (Scp == 'c') /* store format type (c == .) */
341 if ((z = varval(STRcwd)) == STRNULL)
342 break; /* no cwd, so don't do anything */
344 /* show ~ whenever possible - a la dirs */
345 if (Scp == '~' || Scp == '.' ) {
346 static Char *olddir = NULL;
348 if (tlength == 0 || olddir != z) {
349 olddir = z; /* have we changed dir? */
350 olduser = getusername(&olddir);
357 /* option to determine fixed # of dirs from path */
358 if (Scp == '.' || Scp == 'C') {
363 Strbuf_append1(&buf, attributes | *z++);
364 Strbuf_append1(&buf, attributes | *z++);
366 if (*z == '/' && z[1] == '/') {
367 Strbuf_append1(&buf, attributes | *z++);
368 Strbuf_append1(&buf, attributes | *z++);
370 Strbuf_append1(&buf, attributes | *z++);
373 #endif /* WINNT_NATIVE */
375 while (*z) /* calc # of /'s */
381 * for format type c, prompt will be following...
384 * //machine/share => //machine/share
385 * //machine/share/folder => //machine:folder
387 if (oldz[0] == '/' && oldz[1] == '/' && updirs > 1)
388 Strbuf_append1(&buf, attributes | ':');
389 #endif /* WINNT_NATIVE */
390 if ((Scp == 'C' && *q != '/'))
393 if (cp[1] == '0') { /* print <x> or ... */
397 if (cp[1] >= '1' && cp[1] <= '9') { /* calc # to skip */
406 while ((z > q) && (*z != '/'))
411 if (*z == '/' && z != q)
416 if ((olduser) && ((Scp == '~') ||
417 (Scp == '.' && (pdirs || (!pdirs && updirs <= 0))) )) {
418 Strbuf_append1(&buf, attributes | '~');
419 for (q = olduser; *q; q++)
420 Strbuf_append1(&buf, attributes | *q);
423 /* RWM - tell you how many dirs we've ignored */
424 /* and add '/' at front of this */
425 if (updirs > 0 && pdirs) {
426 if (adrof(STRellipsis)) {
427 Strbuf_append1(&buf, attributes | '.');
428 Strbuf_append1(&buf, attributes | '.');
429 Strbuf_append1(&buf, attributes | '.');
431 Strbuf_append1(&buf, attributes | '/');
432 Strbuf_append1(&buf, attributes | '<');
434 Strbuf_append1(&buf, attributes | '9');
435 Strbuf_append1(&buf, attributes | '+');
437 Strbuf_append1(&buf, attributes | ('0' + updirs));
438 Strbuf_append1(&buf, attributes | '>');
443 Strbuf_append1(&buf, attributes | *z++);
445 /* lukem: end of new directory prompt code */
449 if (what == FMT_WHO) {
450 cz = who_info(info, 'n');
451 tprintf_append_mbs(&buf, cz, attributes);
455 #endif /* HAVENOUTMP */
457 if ((z = varval(STRuser)) != STRNULL)
459 Strbuf_append1(&buf, attributes | *z++);
463 if ((z = varval(STReuser)) != STRNULL)
465 Strbuf_append1(&buf, attributes | *z++);
469 if (what == FMT_WHO) {
470 cz = who_info(info, 'l');
471 tprintf_append_mbs(&buf, cz, attributes);
475 #endif /* HAVENOUTMP */
477 if ((z = varval(STRtty)) != STRNULL)
479 Strbuf_append1(&buf, attributes | *z++);
483 tprintf_append_mbs(&buf, day_list[t->tm_wday], attributes);
486 p = Itoa(t->tm_mday, 2, attributes);
487 Strbuf_append(&buf, p);
491 tprintf_append_mbs(&buf, month_list[t->tm_mon], attributes);
494 p = Itoa(t->tm_mon + 1, 2, attributes);
495 Strbuf_append(&buf, p);
499 p = Itoa(t->tm_year % 100, 2, attributes);
500 Strbuf_append(&buf, p);
504 p = Itoa(t->tm_year + 1900, 4, attributes);
505 Strbuf_append(&buf, p);
508 case 'S': /* start standout */
509 attributes |= STANDOUT;
511 case 'B': /* start bold */
514 case 'U': /* start underline */
517 case 's': /* end standout */
518 attributes &= ~STANDOUT;
520 case 'b': /* end bold */
523 case 'u': /* end underline */
524 attributes &= ~UNDER;
535 for (pp = proclist.p_next; pp; pp = pp->p_next)
539 p = Itoa(njobs, 1, attributes);
540 Strbuf_append(&buf, p);
545 if ((z = varval(STRstatus)) != STRNULL)
547 Strbuf_append1(&buf, attributes | *z++);
550 expdollar(&buf, &cp, attributes);
551 /* cp should point the last char of current % sequence */
555 Strbuf_append1(&buf, attributes | '%');
557 case '{': /* literal characters start */
560 * No literal capability, so skip all chars in the literal
563 while (*cp != '\0' && (cp[-1] != '%' || *cp != '}'))
565 #endif /* LITERAL == 0 */
566 attributes |= LITERAL;
568 case '}': /* literal characters end */
569 attributes &= ~LITERAL;
573 if (*cp == 'a' && what == FMT_WHO) {
574 cz = who_info(info, 'a');
575 tprintf_append_mbs(&buf, cz, attributes);
579 #endif /* HAVENOUTMP */
581 Strbuf_append1(&buf, attributes | '%');
582 Strbuf_append1(&buf, attributes | *cp);
587 else if (*cp == '\\' || *cp == '^')
588 Strbuf_append1(&buf, attributes | parseescape(&cp));
589 else if (*cp == HIST) { /* EGS: handle '!'s in prompts */
590 if (what == FMT_HISTORY)
591 cz = fmthist('h', info);
593 cz = xasprintf("%d", eventno + 1);
594 tprintf_append_mbs(&buf, cz, attributes);
598 Strbuf_append1(&buf, attributes | *cp); /* normal character */
600 cleanup_ignore(&buf);
602 return Strbuf_finish(&buf);
606 expdollar(struct Strbuf *buf, const Char **srcp, Char attr)
609 const Char *src = *srcp;
614 /* found a variable, expand it */
615 var = xmalloc((Strlen(src) + 1) * sizeof (*var));
617 var[i] = *++src & TRIM;
618 if (i == 0 && var[i] == '{') {
620 var[i] = *++src & TRIM;
622 if (!alnum(var[i]) && var[i] != '_') {
628 if (curly && (*src & TRIM) == '}')
633 for (i = 0; vp->vec[i] != NULL; i++) {
634 for (val = vp->vec[i]; *val; val++)
635 if (*val != '\n' && *val != '\r')
636 Strbuf_append1(buf, *val | attr);
638 Strbuf_append1(buf, ' ' | attr);
642 val = (!vp) ? tgetenv(var) : NULL;
645 if (*val != '\n' && *val != '\r')
646 Strbuf_append1(buf, *val | attr);