1 /* $Header: /p/tcsh/cvsroot/tcsh/tw.parse.c,v 3.123 2007/03/01 21:21:42 corinna Exp $ */
3 * tw.parse.c: Everyone has taken a shot in this futile effort to
4 * lexically analyze a csh line... Well we cannot good
5 * a job as good as sh.lex.c; but we try. Amazing that
6 * it works considering how many hands have touched this code
9 * Copyright (c) 1980, 1991 The Regents of the University of California.
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 RCSID("$tcsh: tw.parse.c,v 3.123 2007/03/01 21:21:42 corinna Exp $")
48 #endif /* WINNT_NATIVE */
49 #define EVEN(x) (((x) & 1) != 1)
51 #define DOT_NONE 0 /* Don't display dot files */
52 #define DOT_NOT 1 /* Don't display dot or dot-dot */
53 #define DOT_ALL 2 /* Display all dot files */
55 /* TW_NONE, TW_COMMAND, TW_VARIABLE, TW_LOGNAME, */
56 /* TW_FILE, TW_DIRECTORY, TW_VARLIST, TW_USER, */
57 /* TW_COMPLETION, TW_ALIAS, TW_SHELLVAR, TW_ENVVAR, */
58 /* TW_BINDING, TW_WORDLIST, TW_LIMIT, TW_SIGNAL */
59 /* TW_JOB, TW_EXPLAIN, TW_TEXT, TW_GRPNAME */
60 static void (*const tw_start_entry[]) (DIR *, const Char *) = {
61 tw_file_start, tw_cmd_start, tw_var_start, tw_logname_start,
62 tw_file_start, tw_file_start, tw_vl_start, tw_logname_start,
63 tw_complete_start, tw_alias_start, tw_var_start, tw_var_start,
64 tw_bind_start, tw_wl_start, tw_limit_start, tw_sig_start,
65 tw_job_start, tw_file_start, tw_file_start, tw_grpname_start
68 static int (*const tw_next_entry[]) (struct Strbuf *, struct Strbuf *,
70 tw_file_next, tw_cmd_next, tw_var_next, tw_logname_next,
71 tw_file_next, tw_file_next, tw_var_next, tw_logname_next,
72 tw_var_next, tw_var_next, tw_shvar_next, tw_envvar_next,
73 tw_bind_next, tw_wl_next, tw_limit_next, tw_sig_next,
74 tw_job_next, tw_file_next, tw_file_next, tw_grpname_next
77 static void (*const tw_end_entry[]) (void) = {
78 tw_dir_end, tw_dir_end, tw_dir_end, tw_logname_end,
79 tw_dir_end, tw_dir_end, tw_dir_end, tw_logname_end,
80 tw_dir_end, tw_dir_end, tw_dir_end, tw_dir_end,
81 tw_dir_end, tw_dir_end, tw_dir_end, tw_dir_end,
82 tw_dir_end, tw_dir_end, tw_dir_end, tw_grpname_end
87 /* Set to TRUE if recexact is set and an exact match is found
88 * along with other, longer, matches.
93 int match_unique_match = FALSE;
94 int non_unique_match = FALSE;
95 static int SearchNoDirErr = 0; /* t_search returns -2 if dir is unreadable */
97 /* state so if a completion is interrupted, the input line doesn't get
99 int InsideCompletion = 0;
101 /* do the expand or list on the command line -- SHOULD BE REPLACED */
103 static void extract_dir_and_name (const Char *, struct Strbuf *,
105 static int insert_meta (const Char *, const Char *,
107 static int tilde (struct Strbuf *, Char *);
108 static int expand_dir (const Char *, struct Strbuf *, DIR **,
110 static int nostat (Char *);
111 static Char filetype (Char *, Char *);
112 static int t_glob (Char ***, int);
113 static int c_glob (Char ***);
114 static int is_prefix (Char *, Char *);
115 static int is_prefixmatch (Char *, Char *, int);
116 static int is_suffix (Char *, Char *);
117 static int recognize (struct Strbuf *, const Char *, size_t,
119 static int ignored (Char *);
120 static int isadirectory (const Char *, const Char *);
121 static int tw_collect_items (COMMAND, int, struct Strbuf *,
122 struct Strbuf *, Char *, const Char *,
124 static int tw_collect (COMMAND, int, struct Strbuf *,
125 struct Strbuf *, Char *, Char *, int,
127 static Char tw_suffix (int, const Char *, Char *);
128 static void tw_fixword (int, struct Strbuf *, Char *, Char *);
129 static void tw_list_items (int, int, int);
130 static void add_scroll_tab (Char *);
131 static void choose_scroll_tab (struct Strbuf *, int);
132 static void free_scroll_tab (void);
133 static int find_rows (Char *[], int, int);
137 * If we find a set command, then we break a=b to a= and word becomes
138 * b else, we don't break a=b. [don't use that; splits words badly and
139 * messes up tw_complete()]
141 #define isaset(c, w) ((w)[-1] == '=' && \
142 ((c)[0] == 's' && (c)[1] == 'e' && (c)[2] == 't' && \
143 ((c[3] == ' ' || (c)[3] == '\t'))))
146 /* TRUE if character must be quoted */
147 #define tricky(w) (cmap(w, _META | _DOL | _QF | _QB | _ESC | _GLOB) && w != '#')
148 /* TRUE if double quotes don't protect character */
149 #define tricky_dq(w) (cmap(w, _DOL | _QB))
153 * > 1: No. of items found
154 * = 1: Exactly one match / spelling corrected
155 * = 0: No match / spelling was correct
156 * < 0: Error (incl spelling correction impossible)
159 tenematch(Char *inputline, int num_read, COMMAND command)
161 struct Strbuf qline = Strbuf_INIT;
162 Char qu = 0, *pat = STRNULL;
163 size_t wp, word, wordp, cmd_start, oword = 0, ocmd_start = 0;
166 Char *oword_start = NULL;
168 int looking; /* what we are looking for */
169 int search_ret; /* what search returned for debugging */
172 str_end = &inputline[num_read];
173 cleanup_push(&qline, Strbuf_cleanup);
175 word_start = inputline;
176 word = cmd_start = 0;
177 for (cp = inputline; cp < str_end; cp++) {
178 if (!cmap(qu, _ESC)) {
179 if (cmap(*cp, _QF|_ESC)) {
180 if (qu == 0 || qu == *cp) {
185 if (qu != '\'' && cmap(*cp, _QB)) {
186 if ((backq ^= 1) != 0) {
187 ocmd_start = cmd_start;
188 oword_start = word_start;
191 word = cmd_start = qline.len + 1;
194 cmd_start = ocmd_start;
195 word_start = oword_start;
198 Strbuf_append1(&qline, *cp);
203 cmd_start = qline.len + 1;
205 /* Don't quote '/' to make the recognize stuff work easily */
206 /* Don't quote '$' in double quotes */
208 if (cmap(*cp, _ESC) && cp < str_end - 1 && cp[1] == HIST)
209 Strbuf_append1(&qline, *++cp | QUOTE);
210 else if (qu && (tricky(*cp) || *cp == '~') && !(qu == '\"' && tricky_dq(*cp)))
211 Strbuf_append1(&qline, *cp | QUOTE);
213 Strbuf_append1(&qline, *cp);
214 if (ismetahash(qline.s[qline.len - 1])
215 /* || isaset(qline.s + cmd_start, qline.s + qline.len) */)
216 word = qline.len, word_start = cp + 1;
220 Strbuf_terminate(&qline);
224 * SPECIAL HARDCODED COMPLETIONS:
225 * first word of command -> TW_COMMAND
226 * everything else -> TW_ZERO
229 looking = starting_a_command(qline.s + word - 1, qline.s) ?
230 TW_COMMAND : TW_ZERO;
238 xprintf(CGETS(30, 1, "starting_a_command %d\n"), looking);
239 xprintf("\ncmd_start:%S:\n", qline.s + cmd_start);
240 xprintf("qline:%S:\n", qline.s);
242 for (p = qline.s; *p; p++)
243 xprintf("%c", *p & QUOTE ? '-' : ' ');
245 xprintf("word:%S:\n", qline.s + word);
247 for (p = qline.s + word; *p; p++)
248 xprintf("%c", *p & QUOTE ? '-' : ' ');
253 if ((looking == TW_COMMAND || looking == TW_ZERO) &&
254 (command == RECOGNIZE || command == LIST || command == SPELL ||
255 command == RECOGNIZE_SCROLL)) {
259 xprintf(CGETS(30, 2, "complete %d "), looking);
262 looking = tw_complete(qline.s + cmd_start, &p, &pat, looking, &suf);
265 xprintf(CGETS(30, 3, "complete %d %S\n"), looking, pat);
271 Char *items[2], **ptr;
275 case RECOGNIZE_SCROLL:
276 case RECOGNIZE_ALL: {
277 struct Strbuf wordbuf = Strbuf_INIT;
280 if (adrof(STRautocorrect)) {
281 if ((slshp = Strrchr(qline.s + wordp, '/')) != NULL &&
284 for (bptr = qline.s + wordp; bptr < slshp; bptr++) {
286 * do not try to correct spelling of words containing
287 * globbing characters
298 Strbuf_append(&wordbuf, qline.s + wordp);
299 Strbuf_terminate(&wordbuf);
300 cleanup_push(&wordbuf, Strbuf_cleanup);
301 search_ret = t_search(&wordbuf, command, looking, 1, pat, suf);
303 Strbuf_append(&qline, wordbuf.s);
304 Strbuf_terminate(&qline);
305 cleanup_until(&wordbuf);
308 if (search_ret == -2) {
311 rword = Strsave(slshp);
312 cleanup_push(rword, xfree);
313 if (slshp != STRNULL)
315 wordbuf = Strbuf_init;
316 Strbuf_append(&wordbuf, qline.s + wordp);
317 Strbuf_terminate(&wordbuf);
318 cleanup_push(&wordbuf, Strbuf_cleanup);
319 search_ret = spell_me(&wordbuf, looking, pat, suf);
320 if (search_ret == 1) {
321 Strbuf_append(&wordbuf, rword);
322 Strbuf_terminate(&wordbuf);
323 wp = wordp + wordbuf.len;
324 search_ret = t_search(&wordbuf, command, looking, 1, pat, suf);
327 Strbuf_append(&qline, wordbuf.s);
328 Strbuf_terminate(&qline);
329 cleanup_until(rword);
331 if (qline.s[wp] != '\0' &&
332 insert_meta(word_start, str_end, qline.s + word, !qu) < 0)
333 goto err; /* error inserting */
338 struct Strbuf wordbuf = Strbuf_INIT;
340 for (bptr = word_start; bptr < str_end; bptr++) {
342 * do not try to correct spelling of words containing globbing
350 Strbuf_append(&wordbuf, qline.s + wordp);
351 Strbuf_terminate(&wordbuf);
352 cleanup_push(&wordbuf, Strbuf_cleanup);
353 search_ret = spell_me(&wordbuf, looking, pat, suf);
355 Strbuf_append(&qline, wordbuf.s);
356 Strbuf_terminate(&qline);
357 cleanup_until(&wordbuf);
358 if (search_ret == 1) {
359 if (insert_meta(word_start, str_end, qline.s + word, !qu) < 0)
360 goto err; /* error inserting */
366 do_help(qline.s + cmd_start);
372 items[0] = Strsave(qline.s + wordp);
374 cleanup_push(items[0], xfree);
376 count = (looking == TW_COMMAND && Strchr(qline.s + wordp, '/') == 0) ?
378 t_glob(&ptr, looking == TW_COMMAND);
379 cleanup_until(items[0]);
381 cleanup_push(ptr, blk_cleanup);
384 print_by_column(STRNULL, ptr, count, 0);
386 DeleteBack(str_end - word_start);/* get rid of old word */
387 for (i = 0; i < count; i++)
388 if (ptr[i] && *ptr[i]) {
389 (void) quote(ptr[i]);
390 if (insert_meta(0, 0, ptr[i], 0) < 0 ||
391 InsertStr(STRspace) < 0) {
394 goto err; /* error inserting */
405 bptr = dollar(qline.s + word);
407 if (insert_meta(word_start, str_end, bptr, !qu) < 0) {
409 goto err; /* error inserting */
419 if ((bptr = dnormalize(qline.s + wordp, symlinks == SYM_IGNORE ||
420 symlinks == SYM_EXPAND)) != NULL) {
421 if (insert_meta(word_start, str_end, bptr, !qu) < 0) {
423 goto err; /* error inserting */
432 case COMMAND_NORMALIZE: {
436 found = !cmd_expand(qline.s + wordp, &p);
443 if (insert_meta(word_start, str_end, p, !qu) < 0) {
445 goto err; /* error inserting */
454 struct Strbuf wordbuf = Strbuf_INIT;
456 Strbuf_append(&wordbuf, qline.s + wordp);
457 Strbuf_terminate(&wordbuf);
458 cleanup_push(&wordbuf, Strbuf_cleanup);
459 search_ret = t_search(&wordbuf, LIST, looking, 1, pat, suf);
461 Strbuf_append(&qline, wordbuf.s);
462 Strbuf_terminate(&qline);
463 cleanup_until(&wordbuf);
468 xprintf(CGETS(30, 4, "%s: Internal match error.\n"), progname);
472 cleanup_until(&qline);
476 cleanup_until(&qline);
478 } /* end tenematch */
482 * Return a list of files that match the pattern
485 t_glob(Char ***v, int cmd)
496 getexit(osetexit); /* make sure to come back here */
497 omark = cleanup_push_mark();
499 *v = globall(*v, gflag);
500 cleanup_pop_mark(omark);
517 for (i = 0, fwd = 0; av[i] != NULL; i++)
518 if (!executable(NULL, av[i], 0)) {
536 * Return a list of commands that match the pattern
541 struct blk_buf av = BLK_BUF_INIT;
542 struct Strbuf cmd = Strbuf_INIT, dir = Strbuf_INIT;
549 cleanup_push(&av, bb_cleanup);
550 cleanup_push(&cmd, Strbuf_cleanup);
551 cleanup_push(&dir, Strbuf_cleanup);
553 tw_cmd_start(NULL, NULL);
554 while (cmd.len = 0, tw_cmd_next(&cmd, &dir, &flag) != 0) {
555 Strbuf_terminate(&cmd);
556 if (Gmatch(cmd.s, pat))
557 bb_append(&av, Strsave(cmd.s));
569 * change the word before the cursor.
570 * cp must point to the start of the unquoted word.
571 * cpend to the end of it.
572 * word is the text that has to be substituted.
574 * try to keep all the quote characters of the user's input.
575 * change quote type only if necessary.
578 insert_meta(const Char *cp, const Char *cpend, const Char *word,
581 struct Strbuf buffer = Strbuf_INIT;
584 int in_sync = (cp != NULL);
586 int ndel = (int) (cp ? cpend - cp : 0);
590 for (wptr = word;;) {
593 if (in_sync && !cmap(qu, _ESC) && cmap(*cp, _QF|_ESC))
594 if (qu == 0 || qu == *cp) {
596 Strbuf_append1(&buffer, *cp++);
606 if (cmap(w, _ESC | _QF))
607 wq = QUOTE; /* quotes are always quoted */
609 if (!wq && qu && tricky(w) && !(qu == '\"' && tricky_dq(w))) {
610 /* We have to unquote the character */
613 buffer.s[buffer.len - 1] = w;
615 Strbuf_append1(&buffer, qu);
616 Strbuf_append1(&buffer, w);
620 Strbuf_append1(&buffer, qu);
622 } else if (qu && w == qu) {
624 if (buffer.len != 0 && buffer.s[buffer.len - 1] == qu) {
625 /* User misunderstanding :) */
626 buffer.s[buffer.len - 1] = '\\';
627 Strbuf_append1(&buffer, w);
630 Strbuf_append1(&buffer, qu);
631 Strbuf_append1(&buffer, '\\');
632 Strbuf_append1(&buffer, w);
633 Strbuf_append1(&buffer, qu);
636 else if (wq && qu == '\"' && tricky_dq(w)) {
638 Strbuf_append1(&buffer, qu);
639 Strbuf_append1(&buffer, '\\');
640 Strbuf_append1(&buffer, w);
641 Strbuf_append1(&buffer, qu);
643 ((!qu && (tricky(w) || (w == HISTSUB && buffer.len == 0))) ||
644 (!cmap(qu, _ESC) && w == HIST))) {
646 Strbuf_append1(&buffer, '\\');
647 Strbuf_append1(&buffer, w);
649 if (in_sync && *cp++ != w)
651 Strbuf_append1(&buffer, w);
657 if (closequotes && qu && !cmap(qu, _ESC))
658 Strbuf_append1(&buffer, w);
659 bptr = Strbuf_finish(&buffer);
662 res = InsertStr(bptr);
665 } /* end insert_meta */
670 * return true if check matches initial chars in template
671 * This differs from PWB imatch in that if check is null
672 * it matches anything
675 is_prefix(Char *check, Char *template)
677 for (; *check; check++, template++)
678 if ((*check & TRIM) != (*template & TRIM))
681 } /* end is_prefix */
685 * return true if check matches initial chars in template
686 * This differs from PWB imatch in that if check is null
687 * it matches anything
688 * and matches on shortening of commands
691 is_prefixmatch(Char *check, Char *template, int igncase)
695 for (; *check; check++, template++) {
696 if ((*check & TRIM) != (*template & TRIM)) {
697 MCH1 = (*check & TRIM);
698 MCH2 = (*template & TRIM);
699 MCH1 = Isupper(MCH1) ? Tolower(MCH1) : MCH1;
700 MCH2 = Isupper(MCH2) ? Tolower(MCH2) : MCH2;
702 if (!igncase && ((*check & TRIM) == '-' ||
703 (*check & TRIM) == '.' ||
704 (*check & TRIM) == '_')) {
705 MCH1 = MCH2 = (*check & TRIM);
708 } else if (MCH1 == '-') {
711 for (;*template && (*template & TRIM) != MCH1 &&
712 (*template & TRIM) != MCH2; template++)
724 } /* end is_prefixmatch */
728 * Return true if the chars in template appear at the
729 * end of check, I.e., are it's suffix.
732 is_suffix(Char *check, Char *template)
736 t = Strend(template);
741 if (c == check || (*--t & TRIM) != (*--c & TRIM))
744 } /* end is_suffix */
748 * Return true if this is an ignored item
756 if ((vp = adrof(STRfignore)) == NULL || (cp = vp->vec) == NULL)
758 for (; *cp != NULL; cp++)
759 if (is_suffix(item, *cp))
766 /* starting_a_command():
767 * return true if the command starting at wordstart is a command
770 starting_a_command(Char *wordstart, Char *inputline)
772 Char *ptr, *ncmdstart;
775 cmdstart[] = {'`', ';', '&', '(', '|', '\0'},
776 cmdalive[] = {' ', '\t', '\'', '"', '<', '>', '\0'};
779 * Find if the number of backquotes is odd or even.
781 for (ptr = wordstart, count = 0;
783 count += (*ptr-- == '`'))
786 * if the number of backquotes is even don't include the backquote char in
787 * the list of command starting delimiters [if it is zero, then it does not
790 ncmdstart = cmdstart + EVEN(count);
793 * look for the characters previous to this word if we find a command
794 * starting delimiter we break. if we find whitespace and another previous
795 * word then we are not a command
797 * count is our state machine: 0 looking for anything 1 found white-space
800 for (count = 0; wordstart >= inputline; wordstart--) {
801 if (*wordstart == '\0')
803 if (Strchr(ncmdstart, *wordstart)) {
804 for (ptr = wordstart, bsl = 0; *(--ptr) == '\\'; bsl++);
814 if ((ptr = Strchr(cmdalive, *wordstart)) != NULL)
816 if (count == 1 && !ptr)
820 if (wordstart > inputline)
821 switch (*wordstart) {
822 case '&': /* Look for >& */
823 while (wordstart > inputline &&
824 (*--wordstart == ' ' || *wordstart == '\t'))
826 if (*wordstart == '>')
829 case '(': /* check for foreach, if etc. */
830 while (wordstart > inputline &&
831 (*--wordstart == ' ' || *wordstart == '\t'))
833 if (!iscmdmeta(*wordstart) &&
834 (*wordstart != ' ' && *wordstart != '\t'))
841 } /* end starting_a_command */
845 * Object: extend what user typed up to an ambiguity.
847 * On first match, copy full item (assume it'll be the only match)
848 * On subsequent matches, shorten exp_name to the first
849 * character mismatch between exp_name and item.
850 * If we shorten it back to the prefix length, stop searching.
853 recognize(struct Strbuf *exp_name, const Char *item, size_t name_length,
854 int numitems, int enhanced, int igncase)
861 if (numitems == 1) { /* 1st match */
863 Strbuf_append(exp_name, item);
864 Strbuf_terminate(exp_name);
867 if (!enhanced && !igncase) {
868 for (x = exp_name->s, ent = item; *x && (*x & TRIM) == (*ent & TRIM);
872 for (x = exp_name->s, ent = item; *x; x++, ent++) {
875 MCH1 = Isupper(MCH1) ? Tolower(MCH1) : MCH1;
876 MCH2 = Isupper(MCH2) ? Tolower(MCH2) : MCH2;
881 if (*x || !*ent) /* Shorter or exact match */
882 memcpy(exp_name->s, item, len * sizeof(*exp_name->s));
884 *x = '\0'; /* Shorten at 1st char diff */
885 exp_name->len = x - exp_name->s;
886 if (!(match_unique_match || is_set(STRrecexact) || (enhanced && *ent)) && len == name_length) /* Ambiguous to prefix? */
887 return (-1); /* So stop now and save time */
889 } /* end recognize */
892 /* tw_collect_items():
893 * Collect items that match target.
895 * Returns the spelling distance of the closest match.
897 * Returns the number of items found.
898 * If none found, but some ignored items were found,
899 * It returns the -number of ignored items.
902 tw_collect_items(COMMAND command, int looking, struct Strbuf *exp_dir,
903 struct Strbuf *exp_name, Char *target, const Char *pat,
906 int done = FALSE; /* Search is done */
907 int showdots; /* Style to show dot files */
908 int nignored = 0; /* Number of fignored items */
909 int numitems = 0; /* Number of matched items */
910 size_t name_length = Strlen(target); /* Length of prefix (file name) */
911 int exec_check = flags & TW_EXEC_CHK;/* need to check executability */
912 int dir_check = flags & TW_DIR_CHK; /* Need to check for directories */
913 int text_check = flags & TW_TEXT_CHK;/* Need to check for non-directories */
914 int dir_ok = flags & TW_DIR_OK; /* Ignore directories? */
915 int gpat = flags & TW_PAT_OK; /* Match against a pattern */
916 int ignoring = flags & TW_IGN_OK; /* Use fignore? */
917 int d = 4, nd; /* Spelling distance */
920 struct Strbuf buf = Strbuf_INIT, item = Strbuf_INIT;
929 if ((ptr = varval(STRlistflags)) != STRNULL)
942 cleanup_push(&item, Strbuf_cleanup);
943 cleanup_push(&buf, Strbuf_cleanup);
946 tw_next_entry[looking](&item, exp_dir, &flags) != 0)) {
947 Strbuf_terminate(&item);
949 xprintf("item = %S\n", item.s);
956 * Don't match . files on null prefix match
958 if (showdots == DOT_NOT && (ISDOT(item.s) || ISDOTDOT(item.s)))
960 if (name_length == 0 && item.s[0] == '.' && showdots == DOT_NONE)
965 #if defined(_UWIN) || defined(__CYGWIN__)
967 * Turn foo.{exe,com,bat,cmd} into foo since UWIN's readdir returns
968 * the file with the .exe, .com, .bat, .cmd extension
971 static const char *rext[] = { ".exe", ".bat", ".com", ".cmd" };
972 size_t exti = Strlen(item.s);
975 char *ext = short2str(&item.s[exti -= 4]);
978 for (i = 0; i < sizeof(rext) / sizeof(rext[0]); i++)
979 if (strcasecmp(ext, rext[i]) == 0) {
981 Strbuf_terminate(&item);
986 #endif /* _UWIN || __CYGWIN__ */
987 exec_check = flags & TW_EXEC_CHK;
988 dir_ok = flags & TW_DIR_OK;
1002 case SPELL: /* correct the spelling of the last bit */
1003 if (name_length == 0) {/* zero-length word can't be misspelled */
1004 exp_name->len = 0; /* (not trying is important for ~) */
1005 Strbuf_terminate(exp_name);
1010 if (gpat && !Gmatch(item.s, pat))
1013 * Swapped the order of the spdist() arguments as suggested
1014 * by eeide@asylum.cs.utah.edu (Eric Eide)
1016 nd = spdist(target, item.s); /* test the item against original */
1017 if (nd <= d && nd != 4) {
1018 if (!(exec_check && !executable(exp_dir->s, item.s, dir_ok))) {
1020 Strbuf_append(exp_name, item.s);
1021 Strbuf_terminate(exp_name);
1023 if (d == 0) /* if found it exactly */
1028 if (spdir(exp_name, exp_dir->s, item.s, target)) {
1030 !executable(exp_dir->s, exp_name->s, dir_ok))
1034 * We don't want to stop immediately, because
1035 * we might find an exact/better match later.
1048 case RECOGNIZE_SCROLL:
1050 if ((vp = adrof(STRcomplete)) != NULL && vp->vec != NULL) {
1052 for (cp = vp->vec; *cp; cp++) {
1053 if (Strcmp(*cp, STRigncase) == 0)
1055 if (Strcmp(*cp, STRenhance) == 0)
1060 if (enhanced || igncase) {
1061 if (!is_prefixmatch(target, item.s, igncase))
1064 if (!is_prefix(target, item.s))
1068 if (exec_check && !executable(exp_dir->s, item.s, dir_ok))
1071 if (dir_check && !isadirectory(exp_dir->s, item.s))
1074 if (text_check && isadirectory(exp_dir->s, item.s))
1078 * Only pattern match directories if we're checking
1081 if (gpat && !Gmatch(item.s, pat) &&
1082 (dir_check || !isadirectory(exp_dir->s, item.s)))
1086 * Remove duplicates in command listing and completion
1087 * AFEB added code for TW_LOGNAME and TW_USER cases
1089 if (looking == TW_COMMAND || looking == TW_LOGNAME
1090 || looking == TW_USER || command == LIST) {
1092 Strbuf_append(&buf, item.s);
1095 if (!(dir_ok && exec_check))
1097 if (filetype(exp_dir->s, item.s) == '/')
1098 Strbuf_append1(&buf, '/');
1103 Strbuf_append1(&buf, filetype(exp_dir->s, item.s));
1109 Strbuf_terminate(&buf);
1110 if ((looking == TW_COMMAND || looking == TW_USER
1111 || looking == TW_LOGNAME) && tw_item_find(buf.s))
1114 /* maximum length 1 (NULL) + 1 (~ or $) + 1 (filetype) */
1116 if (command == LIST)
1121 if (command == RECOGNIZE || command == RECOGNIZE_ALL ||
1122 command == RECOGNIZE_SCROLL) {
1123 if (ignoring && ignored(item.s)) {
1127 else if (command == RECOGNIZE_SCROLL) {
1128 add_scroll_tab(item.s);
1132 if (match_unique_match || is_set(STRrecexact)) {
1133 if (StrQcmp(target, item.s) == 0) { /* EXACT match */
1135 Strbuf_append(exp_name, item.s);
1136 Strbuf_terminate(exp_name);
1137 numitems = 1; /* fake into expanding */
1138 non_unique_match = TRUE;
1143 if (recognize(exp_name, item.s, name_length, ++numitems,
1145 if (command != RECOGNIZE_SCROLL)
1147 if (enhanced && exp_name->len < name_length) {
1149 Strbuf_append(exp_name, target);
1150 Strbuf_terminate(exp_name);
1159 xprintf("done item = %S\n", item.s);
1162 cleanup_until(&item);
1164 if (command == RECOGNIZE_SCROLL) {
1165 if ((cnt <= curchoice) || (curchoice == -1)) {
1169 } else if (numitems > 1) {
1171 curchoice = cnt - 1;
1172 choose_scroll_tab(exp_name, cnt);
1178 if (command == SPELL)
1181 if (ignoring && numitems == 0 && nignored > 0)
1190 * Find and return the appropriate suffix character
1194 tw_suffix(int looking, const Char *exp_dir, Char *exp_name)
1199 (void) strip(exp_name);
1208 * Don't consider array variables or empty variables
1210 if ((vp = adrof(exp_name)) != NULL && vp->vec != NULL) {
1211 if ((ptr = vp->vec[0]) == NULL || *ptr == '\0' ||
1215 else if ((ptr = tgetenv(exp_name)) == NULL || *ptr == '\0')
1218 return isadirectory(exp_dir, ptr) ? '/' : ' ';
1226 return isadirectory(exp_dir, exp_name) ? '/' : ' ';
1246 } /* end tw_suffix */
1250 * Repair a word after a spalling or a recognizwe
1253 tw_fixword(int looking, struct Strbuf *word, Char *dir, Char *exp_name)
1260 Strbuf_append1(word, '~');
1264 if ((ptr = Strrchr(word->s, '$')) != NULL) {
1265 word->len = ptr + 1 - word->s; /* Delete after the dollar */
1274 Strbuf_append(word, dir); /* put back dir part */
1282 (void) quote(exp_name);
1283 Strbuf_append(word, exp_name); /* add extended name */
1284 Strbuf_terminate(word);
1285 } /* end tw_fixword */
1289 * Collect items. Return -1 in case we were interrupted or
1290 * the return value of tw_collect
1291 * This is really a wrapper for tw_collect_items, serving two
1293 * 1. Handles interrupt cleanups.
1294 * 2. Retries if we had no matches, but there were ignored matches
1297 tw_collect(COMMAND command, int looking, struct Strbuf *exp_dir,
1298 struct Strbuf *exp_name, Char *target, Char *pat, int flags,
1305 xprintf("target = %S\n", target);
1310 volatile size_t omark;
1312 (*tw_start_entry[looking])(dir_fd, pat);
1313 InsideCompletion = 1;
1315 cleanup_pop_mark(omark);
1317 /* interrupted, clean up */
1319 ni = -1; /* flag error */
1322 omark = cleanup_push_mark();
1323 ni = tw_collect_items(command, looking, exp_dir, exp_name, target, pat,
1324 ni >= 0 ? flags : flags & ~TW_IGN_OK);
1325 cleanup_pop_mark(omark);
1330 InsideCompletion = 0;
1331 #if defined(SOLARIS2) && defined(i386) && !defined(__GNUC__)
1332 /* Compiler bug? (from PWP) */
1333 if ((looking == TW_LOGNAME) || (looking == TW_USER))
1335 else if (looking == TW_GRPNAME)
1339 #else /* !(SOLARIS2 && i386 && !__GNUC__) */
1340 (*tw_end_entry[looking])();
1341 #endif /* !(SOLARIS2 && i386 && !__GNUC__) */
1343 } /* end tw_collect */
1347 * List the items that were found
1349 * NOTE instead of looking at numerical vars listmax and listmaxrows
1350 * we can look at numerical var listmax, and have a string value
1351 * listmaxtype (or similar) than can have values 'items' and 'rows'
1352 * (by default interpreted as 'items', for backwards compatibility)
1355 tw_list_items(int looking, int numitems, int list_max)
1364 if ((ptr = varval(STRlistmax)) != STRNULL) {
1366 if (!Isdigit(*ptr)) {
1370 max_items = max_items * 10 + *ptr++ - '0';
1372 if ((max_items > 0) && (numitems > max_items) && list_max)
1373 max_items = numitems;
1378 if (max_items == 0 && (ptr = varval(STRlistmaxrows)) != STRNULL) {
1382 if (!Isdigit(*ptr)) {
1386 max_rows = max_rows * 10 + *ptr++ - '0';
1388 if (max_rows != 0 && looking != TW_JOB)
1389 rows = find_rows(tw_item_get(), numitems, TRUE);
1391 rows = numitems; /* underestimate for lines wider than the termH */
1392 if ((max_rows > 0) && (rows > max_rows) && list_max)
1399 if (max_items || max_rows) {
1405 name = CGETS(30, 5, "items");
1409 name = CGETS(30, 6, "rows");
1413 sname = strsave(name);
1414 cleanup_push(sname, xfree);
1415 xprintf(CGETS(30, 7, "There are %d %s, list them anyway? [n/y] "),
1417 cleanup_until(sname);
1419 /* We should be in Rawmode here, so no \n to catch */
1420 (void) xread(SHIN, &tc, 1);
1421 xprintf("%c\r\n", tc); /* echo the char, do a newline */
1423 * Perhaps we should use the yesexpr from the
1426 if (strchr(CGETS(30, 13, "Yy"), tc) == NULL)
1430 if (looking != TW_SIGNAL)
1431 qsort(tw_item_get(), numitems, sizeof(Char *), fcompare);
1432 if (looking != TW_JOB)
1433 print_by_column(STRNULL, tw_item_get(), numitems, TRUE);
1436 * print one item on every line because jobs can have spaces
1437 * and it is confusing.
1440 Char **w = tw_item_get();
1442 for (i = 0; i < numitems; i++) {
1443 xprintf("%S", w[i]);
1449 } /* end tw_list_items */
1453 * Perform a RECOGNIZE, LIST or SPELL command on string "word".
1456 * >= 0: SPELL command: "distance" (see spdist())
1457 * other: No. of items found
1458 * < 0: Error (message or beep is output)
1462 t_search(struct Strbuf *word, COMMAND command, int looking, int list_max,
1463 Char *pat, eChar suf)
1465 int numitems, /* Number of items matched */
1466 flags = 0, /* search flags */
1467 gpat = pat[0] != '\0', /* Glob pattern search */
1468 res; /* Return value */
1469 struct Strbuf exp_dir = Strbuf_INIT;/* dir after ~ expansion */
1470 struct Strbuf dir = Strbuf_INIT; /* /x/y/z/ part in /x/y/z/f */
1471 struct Strbuf exp_name = Strbuf_INIT;/* the recognized (extended) */
1472 Char *name, /* f part in /d/d/d/f name */
1473 *target; /* Target to expand/correct/list */
1477 * bugfix by Marty Grossman (grossman@CC5.BBN.COM): directory listing can
1478 * dump core when interrupted
1482 non_unique_match = FALSE; /* See the recexact code below */
1484 extract_dir_and_name(word->s, &dir, &name);
1485 cleanup_push(&dir, Strbuf_cleanup);
1486 cleanup_push(&name, xfree_indirect);
1489 * SPECIAL HARDCODED COMPLETIONS:
1490 * foo$variable -> TW_VARIABLE
1491 * ~user -> TW_LOGNAME
1494 if ((*word->s == '~') && (Strchr(word->s, '/') == NULL)) {
1495 looking = TW_LOGNAME;
1497 gpat = 0; /* Override pattern mechanism */
1499 else if ((target = Strrchr(name, '$')) != 0 &&
1500 (Strchr(name, '/') == NULL)) {
1502 looking = TW_VARIABLE;
1503 gpat = 0; /* Override pattern mechanism */
1509 * Try to figure out what we should be looking for
1511 if (looking & TW_PATH) {
1512 gpat = 0; /* pattern holds the pathname to be used */
1513 Strbuf_append(&exp_dir, pat);
1514 if (exp_dir.len != 0 && exp_dir.s[exp_dir.len - 1] != '/')
1515 Strbuf_append1(&exp_dir, '/');
1516 Strbuf_append(&exp_dir, dir.s);
1518 Strbuf_terminate(&exp_dir);
1519 cleanup_push(&exp_dir, Strbuf_cleanup);
1521 switch (looking & ~TW_PATH) {
1531 if (Strchr(word->s, '/') || (looking & TW_PATH)) {
1533 flags |= TW_EXEC_CHK;
1537 /* PWP: don't even bother when doing ALL of the commands */
1538 if (looking == TW_COMMAND && word->len == 0) {
1548 gpat = 0; /* pattern holds the name of the variable */
1552 if (command == LIST && pat != NULL) {
1566 * let fignore work only when we are not using a pattern
1568 flags |= (gpat == 0) ? TW_IGN_OK : TW_PAT_OK;
1571 xprintf(CGETS(30, 8, "looking = %d\n"), looking);
1590 if ((res = expand_dir(dir.s, &exp_dir, &dir_fd, command)) != 0)
1595 flags |= TW_DIR_CHK;
1599 * This is supposed to expand the directory stack.
1602 * 2. directories with the same name
1608 * Supposed to do delayed expansion, but it is inconsistent
1609 * from a user-interface point of view, since it does not
1610 * immediately obey addsuffix
1612 if ((res = expand_dir(dir.s, &exp_dir, &dir_fd, command)) != 0)
1614 if (isadirectory(exp_dir.s, name)) {
1615 if (exp_dir.len != 0 || name[0] != '\0') {
1616 Strbuf_append(&dir, name);
1617 if (dir.s[dir.len - 1] != '/')
1618 Strbuf_append1(&dir, '/');
1619 Strbuf_terminate(&dir);
1620 if ((res = expand_dir(dir.s, &exp_dir, &dir_fd, command)) != 0)
1622 if (word->len != 0 && word->s[word->len - 1] != '/') {
1623 Strbuf_append1(word, '/');
1624 Strbuf_terminate(word);
1630 if ((res = expand_dir(dir.s, &exp_dir, &dir_fd, command)) != 0)
1635 flags |= TW_TEXT_CHK;
1638 if ((res = expand_dir(dir.s, &exp_dir, &dir_fd, command)) != 0)
1642 case TW_PATH | TW_TEXT:
1643 case TW_PATH | TW_FILE:
1644 case TW_PATH | TW_DIRECTORY:
1645 case TW_PATH | TW_COMMAND:
1646 if ((dir_fd = opendir(short2str(exp_dir.s))) == NULL) {
1647 if (command == RECOGNIZE)
1649 xprintf("%S: %s", exp_dir.s, strerror(errno));
1650 if (command != RECOGNIZE)
1656 if (exp_dir.len != 0 && exp_dir.s[exp_dir.len - 1] != '/') {
1657 Strbuf_append1(&exp_dir, '/');
1658 Strbuf_terminate(&exp_dir);
1661 looking &= ~TW_PATH;
1665 flags |= TW_TEXT_CHK;
1672 flags |= TW_DIR_CHK;
1677 target = name = Strsave(word->s); /* so it can match things */
1681 abort(); /* Cannot happen */
1687 user_name = word->s + 1;
1692 user_name = word->s;
1695 * Check if the spelling was already correct
1696 * From: Rob McMahon <cudcv@cu.warwick.ac.uk>
1698 if (command == SPELL && xgetpwnam(short2str(user_name)) != NULL) {
1706 target = name = Strsave(user_name);
1712 target = name = Strsave(word->s); /* so it can match things */
1716 xprintf(CGETS(30, 9,
1717 "\n%s internal error: I don't know what I'm looking for!\n"),
1724 cleanup_push(&exp_name, Strbuf_cleanup);
1725 numitems = tw_collect(command, looking, &exp_dir, &exp_name, target, pat,
1733 case RECOGNIZE_SCROLL:
1737 Strbuf_terminate(&exp_name);
1738 tw_fixword(looking, word, dir.s, exp_name.s);
1740 if (!match_unique_match && is_set(STRaddsuffix) && numitems == 1) {
1742 case 0: /* Automatic suffix */
1743 Strbuf_append1(word,
1744 tw_suffix(looking, exp_dir.s, exp_name.s));
1747 case CHAR_ERR: /* No suffix */
1750 default: /* completion specified suffix */
1751 Strbuf_append1(word, suf);
1754 Strbuf_terminate(word);
1759 tw_list_items(looking, numitems, list_max);
1764 Strbuf_terminate(&exp_name);
1765 tw_fixword(looking, word, dir.s, exp_name.s);
1769 xprintf("Bad tw_command\n");
1775 cleanup_until(&dir);
1777 } /* end t_search */
1780 /* extract_dir_and_name():
1781 * parse full path in file into 2 parts: directory and file names
1782 * Should leave final slash (/) at end of dir.
1785 extract_dir_and_name(const Char *path, struct Strbuf *dir, Char **name)
1789 p = Strrchr(path, '/');
1792 p = Strrchr(path, ':');
1793 #endif /* WINNT_NATIVE */
1795 *name = Strsave(path);
1799 Strbuf_appendn(dir, path, p - path);
1801 Strbuf_terminate(dir);
1802 } /* end extract_dir_and_name */
1806 * expand "/$old1/$old2/old3/"
1807 * to "/value_of_old1/value_of_old2/old3/"
1810 dollar(const Char *old)
1812 struct Strbuf buf = Strbuf_INIT;
1816 Strbuf_append1(&buf, *old++);
1818 if (expdollar(&buf, &old, QUOTE) == 0) {
1824 return Strbuf_finish(&buf);
1829 * expand ~person/foo to home_directory_of_person/foo
1830 * or =<stack-entry> to <dir in stack entry>
1833 tilde(struct Strbuf *new, Char *old)
1843 for (o = old; *o && *o != '/'; o++)
1845 name = Strnsave(old, o - old);
1846 home = gethdir(name);
1850 Strbuf_append(new, home);
1852 /* If the home directory expands to "/", we do
1853 * not want to create "//" by appending a slash from o.
1855 if (new->s[0] == '/' && new->len == 1 && *o == '/')
1857 Strbuf_append(new, o);
1862 if ((p = globequal(old)) == NULL)
1865 Strbuf_append(new, p);
1872 Strbuf_append(new, old);
1875 Strbuf_terminate(new);
1879 Strbuf_terminate(new);
1885 * Open the directory given, expanding ~user and $var
1886 * Optionally normalize the path given
1889 expand_dir(const Char *dir, struct Strbuf *edir, DIR **dfd, COMMAND cmd)
1895 cleanup_push(tdir, xfree);
1897 (tilde(edir, tdir) != 0) ||
1898 !(nd = dnormalize(edir->len ? edir->s : STRdot,
1899 symlinks == SYM_IGNORE || symlinks == SYM_EXPAND)) ||
1900 ((*dfd = opendir(short2str(nd))) == NULL)) {
1902 if (cmd == SPELL || SearchNoDirErr) {
1903 cleanup_until(tdir);
1907 * From: Amos Shapira <amoss@cs.huji.ac.il>
1908 * Print a better message when completion fails
1910 xprintf("\n%S %s\n", edir->len ? edir->s : (tdir ? tdir : dir),
1911 (errno == ENOTDIR ? CGETS(30, 10, "not a directory") :
1912 (errno == ENOENT ? CGETS(30, 11, "not found") :
1913 CGETS(30, 12, "unreadable"))));
1915 cleanup_until(tdir);
1918 cleanup_until(tdir);
1924 * Copy and append a / if there was one
1926 slash = edir->len != 0 && edir->s[edir->len - 1] == '/';
1928 Strbuf_append(edir, nd);
1929 if (slash != 0 && edir->s[edir->len - 1] != '/')
1930 Strbuf_append1(edir, '/');
1931 Strbuf_terminate(edir);
1936 } /* end expand_dir */
1940 * Returns true if the directory should not be stat'd,
1942 * This way, things won't grind to a halt when you complete in /afs
1943 * or very large directories.
1951 if ((vp = adrof(STRnostat)) == NULL || (cp = vp->vec) == NULL)
1953 for (; *cp != NULL; cp++) {
1954 if (Strcmp(*cp, STRstar) == 0)
1956 if (Gmatch(dir, *cp))
1964 * Return a character that signifies a filetype
1965 * symbology from 4.3 ls command.
1968 filetype(Char *dir, Char *file)
1975 if (nostat(dir)) return(' ');
1977 path = Strspl(dir, file);
1978 ptr = short2str(path);
1981 if (lstat(ptr, &statb) != -1) {
1983 if (S_ISLNK(statb.st_mode)) { /* Symbolic link */
1984 if (adrof(STRlistlinks)) {
1985 if (stat(ptr, &statb) == -1)
1987 else if (S_ISDIR(statb.st_mode))
1997 if (S_ISSOCK(statb.st_mode)) /* Socket */
2001 if (S_ISFIFO(statb.st_mode)) /* Named Pipe */
2005 if (S_ISHIDDEN(statb.st_mode)) /* Hidden Directory [aix] */
2010 struct stat hpstatb;
2013 p2 = strspl(ptr, "+"); /* Must append a '+' and re-stat(). */
2014 if ((stat(p2, &hpstatb) != -1) && S_ISCDF(hpstatb.st_mode)) {
2016 return ('+'); /* Context Dependent Files [hpux] */
2022 if (S_ISNWK(statb.st_mode)) /* Network Special [hpux] */
2026 if (S_ISCHR(statb.st_mode)) /* char device */
2030 if (S_ISBLK(statb.st_mode)) /* block device */
2034 if (S_ISDIR(statb.st_mode)) /* normal Directory */
2037 if (statb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH))
2042 } /* end filetype */
2046 * Return trus if the file is a directory
2049 isadirectory(const Char *dir, const Char *file)
2050 /* return 1 if dir/file is a directory */
2051 /* uses stat rather than lstat to get dest. */
2058 path = Strspl(dir, file);
2059 cpath = short2str(path);
2061 if (stat(cpath, &statb) >= 0) { /* resolve through symlink */
2063 if (S_ISSOCK(statb.st_mode)) /* Socket */
2067 if (S_ISFIFO(statb.st_mode)) /* Named Pipe */
2070 if (S_ISDIR(statb.st_mode)) /* normal Directory */
2075 } /* end isadirectory */
2080 * Return how many rows needed to print sorted down columns
2083 find_rows(Char *items[], int count, int no_file_suffix)
2085 int i, columns, rows;
2086 unsigned int maxwidth = 0;
2088 for (i = 0; i < count; i++) /* find widest string */
2089 maxwidth = max(maxwidth, (unsigned int) Strlen(items[i]));
2091 maxwidth += no_file_suffix ? 1 : 2; /* for the file tag and space */
2092 columns = (TermH + 1) / maxwidth; /* PWP: terminal size change */
2095 rows = (count + (columns - 1)) / columns;
2098 } /* end rows_needed_by_print_by_column */
2101 /* print_by_column():
2102 * Print sorted down columns or across columns when the first
2103 * word of $listflags shell variable contains 'x'.
2107 print_by_column(Char *dir, Char *items[], int count, int no_file_suffix)
2109 int i, r, c, columns, rows;
2111 unsigned int wx, maxwidth = 0;
2115 lbuffed = 0; /* turn off line buffering */
2118 across = ((val = varval(STRlistflags)) != STRNULL) &&
2119 (Strchr(val, 'x') != NULL);
2121 for (i = 0; i < count; i++) { /* find widest string */
2122 maxwidth = max(maxwidth, (unsigned int) NLSStringWidth(items[i]));
2125 maxwidth += no_file_suffix ? 1 : 2; /* for the file tag and space */
2126 columns = TermH / maxwidth; /* PWP: terminal size change */
2127 if (!columns || !isatty(didfds ? 1 : SHOUT))
2129 rows = (count + (columns - 1)) / columns;
2132 for (r = 0; r < rows; r++) {
2133 for (c = 0; c < columns; c++) {
2134 i = across ? (i + 1) : (c * rows + r);
2138 w = Strlen(items[i]);
2141 if (no_file_suffix) {
2142 /* Print the command name */
2143 Char f = items[i][w - 1];
2144 items[i][w - 1] = 0;
2145 print_with_color(items[i], w - 1, f);
2146 items[i][w - 1] = f;
2149 /* Print filename followed by '/' or '*' or ' ' */
2150 print_with_color(items[i], w, filetype(dir, items[i]));
2153 #else /* ifndef COLOR_LS_F */
2154 if (no_file_suffix) {
2155 /* Print the command name */
2156 xprintf("%S", items[i]);
2159 /* Print filename followed by '/' or '*' or ' ' */
2160 xprintf("%-S%c", items[i], filetype(dir, items[i]));
2163 #endif /* COLOR_LS_F */
2165 if (c < (columns - 1)) { /* Not last column? */
2166 w = NLSStringWidth(items[i]) + wx;
2167 for (; w < maxwidth; w++)
2179 lbuffed = 1; /* turn back on line buffering */
2181 } /* end print_by_column */
2185 * Compare strings ignoring the quoting chars
2188 StrQcmp(const Char *str1, const Char *str2)
2190 for (; *str1 && samecase(*str1 & TRIM) == samecase(*str2 & TRIM);
2194 * The following case analysis is necessary so that characters which look
2195 * negative collate low against normal characters but high against the
2196 * end-of-string NUL.
2198 if (*str1 == '\0' && *str2 == '\0')
2200 else if (*str1 == '\0')
2202 else if (*str2 == '\0')
2205 return ((*str1 & TRIM) - (*str2 & TRIM));
2210 * Comparison routine for qsort, (Char **, Char **)
2213 fcompare(const void *xfile1, const void *xfile2)
2215 const Char *const *file1 = xfile1, *const *file2 = xfile2;
2217 return collate(*file1, *file2);
2218 } /* end fcompare */
2222 * Concatenate src onto tail of des.
2223 * Des is a string whose maximum length is count.
2224 * Always null terminate.
2227 catn(Char *des, const Char *src, int count)
2229 while (*des && --count > 0)
2232 if ((*des++ = *src++) == 0)
2239 * like strncpy but always leave room for trailing \0
2240 * and always null terminate.
2243 copyn(Char *des, const Char *src, size_t count)
2245 while (--count != 0)
2246 if ((*des++ = *src++) == 0)
2253 * like it's normal string counter-part
2263 /* Search the STR_environ for the entry matching str. */
2264 for (var = STR_environ; var != NULL && *var != NULL; var++)
2265 if (Strlen(*var) >= len && (*var)[len] == '=') {
2266 /* Temporarily terminate the string so we can copy the variable
2269 res = StrQcmp(*var, str);
2270 /* Restore the '=' and return a pointer to the value of the
2271 environment variable. */
2274 return (&((*var)[len + 1]));
2280 struct scroll_tab_list *scroll_tab = 0;
2283 add_scroll_tab(Char *item)
2285 struct scroll_tab_list *new_scroll;
2287 new_scroll = xmalloc(sizeof(struct scroll_tab_list));
2288 new_scroll->element = Strsave(item);
2289 new_scroll->next = scroll_tab;
2290 scroll_tab = new_scroll;
2294 choose_scroll_tab(struct Strbuf *exp_name, int cnt)
2296 struct scroll_tab_list *loop;
2300 ptr = xmalloc(sizeof(Char *) * cnt);
2301 cleanup_push(ptr, xfree);
2303 for(loop = scroll_tab; loop && (tmp >= 0); loop = loop->next)
2304 ptr[--tmp] = loop->element;
2306 qsort(ptr, cnt, sizeof(Char *), fcompare);
2309 Strbuf_append(exp_name, ptr[curchoice]);
2310 Strbuf_terminate(exp_name);
2315 free_scroll_tab(void)
2317 struct scroll_tab_list *loop;
2321 scroll_tab = scroll_tab->next;
2322 xfree(loop->element);