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Diffstat (limited to 'contrib/tcsh/tw.parse.c')
| -rw-r--r-- | contrib/tcsh/tw.parse.c | 2251 |
1 files changed, 0 insertions, 2251 deletions
diff --git a/contrib/tcsh/tw.parse.c b/contrib/tcsh/tw.parse.c deleted file mode 100644 index af3f1338df64..000000000000 --- a/contrib/tcsh/tw.parse.c +++ /dev/null @@ -1,2251 +0,0 @@ -/* $Header: /src/pub/tcsh/tw.parse.c,v 3.87 2000/01/14 22:57:30 christos Exp $ */ -/* - * tw.parse.c: Everyone has taken a shot in this futile effort to - * lexically analyze a csh line... Well we cannot good - * a job as good as sh.lex.c; but we try. Amazing that - * it works considering how many hands have touched this code - */ -/*- - * Copyright (c) 1980, 1991 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include "sh.h" - -RCSID("$Id: tw.parse.c,v 3.87 2000/01/14 22:57:30 christos Exp $") - -#include "tw.h" -#include "ed.h" -#include "tc.h" - -#ifdef WINNT -#include "nt.const.h" -#endif /* WINNT */ -#define EVEN(x) (((x) & 1) != 1) - -#define DOT_NONE 0 /* Don't display dot files */ -#define DOT_NOT 1 /* Don't display dot or dot-dot */ -#define DOT_ALL 2 /* Display all dot files */ - -/* TW_NONE, TW_COMMAND, TW_VARIABLE, TW_LOGNAME, */ -/* TW_FILE, TW_DIRECTORY, TW_VARLIST, TW_USER, */ -/* TW_COMPLETION, TW_ALIAS, TW_SHELLVAR, TW_ENVVAR, */ -/* TW_BINDING, TW_WORDLIST, TW_LIMIT, TW_SIGNAL */ -/* TW_JOB, TW_EXPLAIN, TW_TEXT, TW_GRPNAME */ -static void (*tw_start_entry[]) __P((DIR *, Char *)) = { - tw_file_start, tw_cmd_start, tw_var_start, tw_logname_start, - tw_file_start, tw_file_start, tw_vl_start, tw_logname_start, - tw_complete_start, tw_alias_start, tw_var_start, tw_var_start, - tw_bind_start, tw_wl_start, tw_limit_start, tw_sig_start, - tw_job_start, tw_file_start, tw_file_start, tw_grpname_start -}; - -static Char * (*tw_next_entry[]) __P((Char *, int *)) = { - tw_file_next, tw_cmd_next, tw_var_next, tw_logname_next, - tw_file_next, tw_file_next, tw_var_next, tw_logname_next, - tw_var_next, tw_var_next, tw_shvar_next, tw_envvar_next, - tw_bind_next, tw_wl_next, tw_limit_next, tw_sig_next, - tw_job_next, tw_file_next, tw_file_next, tw_grpname_next -}; - -static void (*tw_end_entry[]) __P((void)) = { - tw_dir_end, tw_dir_end, tw_dir_end, tw_logname_end, - tw_dir_end, tw_dir_end, tw_dir_end, tw_logname_end, - tw_dir_end, tw_dir_end, tw_dir_end, tw_dir_end, - tw_dir_end, tw_dir_end, tw_dir_end, tw_dir_end, - tw_dir_end, tw_dir_end, tw_dir_end, tw_grpname_end -}; - -/* #define TDEBUG */ - -/* Set to TRUE if recexact is set and an exact match is found - * along with other, longer, matches. - */ - -int curchoice = -1; - -int match_unique_match = FALSE; -int non_unique_match = FALSE; -static bool SearchNoDirErr = 0; /* t_search returns -2 if dir is unreadable */ - -/* state so if a completion is interrupted, the input line doesn't get - nuked */ -int InsideCompletion = 0; - -/* do the expand or list on the command line -- SHOULD BE REPLACED */ - -extern Char NeedsRedraw; /* from ed.h */ -extern int Tty_raw_mode; -extern int TermH; /* from the editor routines */ -extern int lbuffed; /* from sh.print.c */ - -static void extract_dir_and_name __P((Char *, Char *, Char *)); -static int insert_meta __P((Char *, Char *, Char *, bool)); -static Char *tilde __P((Char *, Char *)); -static int expand_dir __P((Char *, Char *, DIR **, COMMAND)); -static bool nostat __P((Char *)); -static Char filetype __P((Char *, Char *)); -static int t_glob __P((Char ***, int)); -static int c_glob __P((Char ***)); -static int is_prefix __P((Char *, Char *)); -static int is_prefixmatch __P((Char *, Char *, int)); -static int is_suffix __P((Char *, Char *)); -static int recognize __P((Char *, Char *, int, int, int)); -static int ignored __P((Char *)); -static int isadirectory __P((Char *, Char *)); -static int tw_collect_items __P((COMMAND, int, Char *, Char *, - Char *, Char *, int)); -static int tw_collect __P((COMMAND, int, Char *, Char *, - Char **, Char *, int, DIR *)); -static Char tw_suffix __P((int, Char *, Char *, Char *, - Char *)); -static void tw_fixword __P((int, Char *, Char *, Char *, int)); -static void tw_list_items __P((int, int, int)); -static void add_scroll_tab __P((Char *)); -static void choose_scroll_tab __P((Char **, int)); -static void free_scroll_tab __P((void)); -static int find_rows __P((Char *[], int, int)); - -#ifdef notdef -/* - * If we find a set command, then we break a=b to a= and word becomes - * b else, we don't break a=b. [don't use that; splits words badly and - * messes up tw_complete()] - */ -#define isaset(c, w) ((w)[-1] == '=' && \ - ((c)[0] == 's' && (c)[1] == 'e' && (c)[2] == 't' && \ - ((c[3] == ' ' || (c)[3] == '\t')))) -#endif - -#define QLINESIZE (INBUFSIZE + 1) - -/* TRUE if character must be quoted */ -#define tricky(w) (cmap(w, _META | _DOL | _QF | _QB | _ESC | _GLOB) && w != '#') -/* TRUE if double quotes don't protect character */ -#define tricky_dq(w) (cmap(w, _DOL | _QB)) - -/* tenematch(): - * Return: - * > 1: No. of items found - * = 1: Exactly one match / spelling corrected - * = 0: No match / spelling was correct - * < 0: Error (incl spelling correction impossible) - */ -int -tenematch(inputline, num_read, command) - Char *inputline; /* match string prefix */ - int num_read; /* # actually in inputline */ - COMMAND command; /* LIST or RECOGNIZE or PRINT_HELP */ - -{ - Char qline[QLINESIZE]; - Char qu = 0, *pat = STRNULL; - Char *str_end, *cp, *wp, *wordp; - Char *cmd_start, *word_start, *word; - Char *ocmd_start = NULL, *oword_start = NULL, *oword = NULL; - int suf = 0; - int space_left; - int looking; /* what we are looking for */ - int search_ret; /* what search returned for debugging */ - int backq = 0; - - if (num_read > QLINESIZE - 1) - return -1; - str_end = &inputline[num_read]; - - word_start = inputline; - word = cmd_start = wp = qline; - for (cp = inputline; cp < str_end; cp++) { - if (!cmap(qu, _ESC)) { - if (cmap(*cp, _QF|_ESC)) { - if (qu == 0 || qu == *cp) { - qu ^= *cp; - continue; - } - } - if (qu != '\'' && cmap(*cp, _QB)) { - if ((backq ^= 1) != 0) { - ocmd_start = cmd_start; - oword_start = word_start; - oword = word; - word_start = cp + 1; - word = cmd_start = wp + 1; - } - else { - cmd_start = ocmd_start; - word_start = oword_start; - word = oword; - } - *wp++ = *cp; - continue; - } - } - if (iscmdmeta(*cp)) - cmd_start = wp + 1; - - /* Don't quote '/' to make the recognize stuff work easily */ - /* Don't quote '$' in double quotes */ - - if (cmap(*cp, _ESC) && cp < str_end - 1 && cp[1] == HIST) - *wp = *++cp | QUOTE; - else if (qu && (tricky(*cp) || *cp == '~') && !(qu == '\"' && tricky_dq(*cp))) - *wp = *cp | QUOTE; - else - *wp = *cp; - if (ismetahash(*wp) /* || isaset(cmd_start, wp + 1) */) - word = wp + 1, word_start = cp + 1; - wp++; - if (cmap(qu, _ESC)) - qu = 0; - } - *wp = 0; - -#ifdef masscomp - /* - * Avoid a nasty message from the RTU 4.1A & RTU 5.0 compiler concerning - * the "overuse of registers". According to the compiler release notes, - * incorrect code may be produced unless the offending expression is - * rewritten. Therefore, we can't just ignore it, DAS DEC-90. - */ - space_left = QLINESIZE - 1; - space_left -= word - qline; -#else - space_left = QLINESIZE - 1 - (int) (word - qline); -#endif - - /* - * SPECIAL HARDCODED COMPLETIONS: - * first word of command -> TW_COMMAND - * everything else -> TW_ZERO - * - */ - looking = starting_a_command(word - 1, qline) ? - TW_COMMAND : TW_ZERO; - - wordp = word; - -#ifdef TDEBUG - xprintf(CGETS(30, 1, "starting_a_command %d\n"), looking); - xprintf("\ncmd_start:%S:\n", cmd_start); - xprintf("qline:%S:\n", qline); - xprintf("qline:"); - for (wp = qline; *wp; wp++) - xprintf("%c", *wp & QUOTE ? '-' : ' '); - xprintf(":\n"); - xprintf("word:%S:\n", word); - xprintf("word:"); - /* Must be last, so wp is still pointing to the end of word */ - for (wp = word; *wp; wp++) - xprintf("%c", *wp & QUOTE ? '-' : ' '); - xprintf(":\n"); -#endif - - if ((looking == TW_COMMAND || looking == TW_ZERO) && - (command == RECOGNIZE || command == LIST || command == SPELL || - command == RECOGNIZE_SCROLL)) { -#ifdef TDEBUG - xprintf(CGETS(30, 2, "complete %d "), looking); -#endif - looking = tw_complete(cmd_start, &wordp, &pat, looking, &suf); -#ifdef TDEBUG - xprintf(CGETS(30, 3, "complete %d %S\n"), looking, pat); -#endif - } - - switch (command) { - Char buffer[FILSIZ + 1], *bptr; - Char *slshp; - Char *items[2], **ptr; - int i, count; - - case RECOGNIZE: - case RECOGNIZE_SCROLL: - case RECOGNIZE_ALL: - if (adrof(STRautocorrect)) { - if ((slshp = Strrchr(wordp, '/')) != NULL && slshp[1] != '\0') { - SearchNoDirErr = 1; - for (bptr = wordp; bptr < slshp; bptr++) { - /* - * do not try to correct spelling of words containing - * globbing characters - */ - if (isglob(*bptr)) { - SearchNoDirErr = 0; - break; - } - } - } - } - else - slshp = STRNULL; - search_ret = t_search(wordp, wp, command, space_left, looking, 1, - pat, suf); - SearchNoDirErr = 0; - - if (search_ret == -2) { - Char rword[FILSIZ + 1]; - - (void) Strcpy(rword, slshp); - if (slshp != STRNULL) - *slshp = '\0'; - search_ret = spell_me(wordp, QLINESIZE - (wordp - qline), looking, - pat, suf); - if (search_ret == 1) { - (void) Strcat(wordp, rword); - wp = wordp + (int) Strlen(wordp); - search_ret = t_search(wordp, wp, command, space_left, - looking, 1, pat, suf); - } - } - if (*wp && insert_meta(word_start, str_end, word, !qu) < 0) - return -1; /* error inserting */ - return search_ret; - - case SPELL: - for (bptr = word_start; bptr < str_end; bptr++) { - /* - * do not try to correct spelling of words containing globbing - * characters - */ - if (isglob(*bptr)) - return 0; - } - search_ret = spell_me(wordp, QLINESIZE - (wordp - qline), looking, - pat, suf); - if (search_ret == 1) { - if (insert_meta(word_start, str_end, word, !qu) < 0) - return -1; /* error inserting */ - } - return search_ret; - - case PRINT_HELP: - do_help(cmd_start); - return 1; - - case GLOB: - case GLOB_EXPAND: - (void) Strncpy(buffer, wordp, FILSIZ + 1); - items[0] = buffer; - items[1] = NULL; - ptr = items; - count = (looking == TW_COMMAND && Strchr(wordp, '/') == 0) ? - c_glob(&ptr) : - t_glob(&ptr, looking == TW_COMMAND); - if (count > 0) { - if (command == GLOB) - print_by_column(STRNULL, ptr, count, 0); - else { - DeleteBack(str_end - word_start);/* get rid of old word */ - for (i = 0; i < count; i++) - if (ptr[i] && *ptr[i]) { - (void) quote(ptr[i]); - if (insert_meta(0, 0, ptr[i], 0) < 0 || - InsertStr(STRspace) < 0) { - blkfree(ptr); - return -1; /* error inserting */ - } - } - } - blkfree(ptr); - } - return count; - - case VARS_EXPAND: - if (dollar(buffer, word)) { - if (insert_meta(word_start, str_end, buffer, !qu) < 0) - return -1; /* error inserting */ - return 1; - } - return 0; - - case PATH_NORMALIZE: - if ((bptr = dnormalize(wordp, symlinks == SYM_IGNORE || - symlinks == SYM_EXPAND)) != NULL) { - (void) Strcpy(buffer, bptr); - xfree((ptr_t) bptr); - if (insert_meta(word_start, str_end, buffer, !qu) < 0) - return -1; /* error inserting */ - return 1; - } - return 0; - - case COMMAND_NORMALIZE: - if (!cmd_expand(wordp, buffer)) - return 0; - if (insert_meta(word_start, str_end, buffer, !qu) < 0) - return -1; /* error inserting */ - return 1; - - case LIST: - case LIST_ALL: - search_ret = t_search(wordp, wp, LIST, space_left, looking, 1, - pat, suf); - return search_ret; - - default: - xprintf(CGETS(30, 4, "%s: Internal match error.\n"), progname); - return 1; - - } -} /* end tenematch */ - - -/* t_glob(): - * Return a list of files that match the pattern - */ -static int -t_glob(v, cmd) - register Char ***v; - int cmd; -{ - jmp_buf_t osetexit; - - if (**v == 0) - return (0); - gflag = 0, tglob(*v); - if (gflag) { - getexit(osetexit); /* make sure to come back here */ - if (setexit() == 0) - *v = globall(*v); - resexit(osetexit); - gargv = 0; - if (haderr) { - haderr = 0; - NeedsRedraw = 1; - return (-1); - } - if (*v == 0) - return (0); - } - else - return (0); - - if (cmd) { - Char **av = *v, *p; - int fwd, i, ac = gargc; - - for (i = 0, fwd = 0; i < ac; i++) - if (!executable(NULL, av[i], 0)) { - fwd++; - p = av[i]; - av[i] = NULL; - xfree((ptr_t) p); - } - else if (fwd) - av[i - fwd] = av[i]; - - if (fwd) - av[i - fwd] = av[i]; - gargc -= fwd; - av[gargc] = NULL; - } - - return (gargc); -} /* end t_glob */ - - -/* c_glob(): - * Return a list of commands that match the pattern - */ -static int -c_glob(v) - register Char ***v; -{ - Char *pat = **v, *cmd, **av; - Char dir[MAXPATHLEN+1]; - int flag, at, ac; - - if (pat == NULL) - return (0); - - ac = 0; - at = 10; - av = (Char **) xmalloc((size_t) (at * sizeof(Char *))); - av[ac] = NULL; - - tw_cmd_start(NULL, NULL); - while ((cmd = tw_cmd_next(dir, &flag)) != NULL) - if (Gmatch(cmd, pat)) { - if (ac + 1 >= at) { - at += 10; - av = (Char **) xrealloc((ptr_t) av, - (size_t) (at * sizeof(Char *))); - } - av[ac++] = Strsave(cmd); - av[ac] = NULL; - } - tw_dir_end(); - *v = av; - - return (ac); -} /* end c_glob */ - - -/* insert_meta(): - * change the word before the cursor. - * cp must point to the start of the unquoted word. - * cpend to the end of it. - * word is the text that has to be substituted. - * strategy: - * try to keep all the quote characters of the user's input. - * change quote type only if necessary. - */ -static int -insert_meta(cp, cpend, word, closequotes) - Char *cp; - Char *cpend; - Char *word; - bool closequotes; -{ - Char buffer[2 * FILSIZ + 1], *bptr, *wptr; - int in_sync = (cp != NULL); - int qu = 0; - int ndel = (int) (cp ? cpend - cp : 0); - Char w, wq; -#ifdef DSPMBYTE - int mbytepos = 1; -#endif /* DSPMBYTE */ - - for (bptr = buffer, wptr = word;;) { - if (bptr > buffer + 2 * FILSIZ - 5) - break; - - if (cp >= cpend) - in_sync = 0; -#ifdef DSPMBYTE - if (mbytepos == 1) -#endif /* DSPMBYTE */ - if (in_sync && !cmap(qu, _ESC) && cmap(*cp, _QF|_ESC)) - if (qu == 0 || qu == *cp) { - qu ^= *cp; - *bptr++ = *cp++; - continue; - } - w = *wptr; - if (w == 0) - break; - - wq = w & QUOTE; - w &= ~QUOTE; - -#ifdef DSPMBYTE - if (mbytepos == 2) - goto mbyteskip; -#endif /* DSPMBYTE */ - if (cmap(w, _ESC | _QF)) - wq = QUOTE; /* quotes are always quoted */ - - if (!wq && qu && tricky(w) && !(qu == '\"' && tricky_dq(w))) { - /* We have to unquote the character */ - in_sync = 0; - if (cmap(qu, _ESC)) - bptr[-1] = w; - else { - *bptr++ = (Char) qu; - *bptr++ = w; - if (wptr[1] == 0) - qu = 0; - else - *bptr++ = (Char) qu; - } - } else if (qu && w == qu) { - in_sync = 0; - if (bptr > buffer && bptr[-1] == qu) { - /* User misunderstanding :) */ - bptr[-1] = '\\'; - *bptr++ = w; - qu = 0; - } else { - *bptr++ = (Char) qu; - *bptr++ = '\\'; - *bptr++ = w; - *bptr++ = (Char) qu; - } - } - else if (wq && qu == '\"' && tricky_dq(w)) { - in_sync = 0; - *bptr++ = (Char) qu; - *bptr++ = '\\'; - *bptr++ = w; - *bptr++ = (Char) qu; - } else if (wq && ((!qu && (tricky(w) || (w == HISTSUB && bptr == buffer))) || (!cmap(qu, _ESC) && w == HIST))) { - in_sync = 0; - *bptr++ = '\\'; - *bptr++ = w; - } else { -#ifdef DSPMBYTE - mbyteskip: -#endif /* DSPMBYTE */ - if (in_sync && *cp++ != w) - in_sync = 0; - *bptr++ = w; -#ifdef DSPMBYTE - if (mbytepos == 1 && Ismbyte1(w)) - mbytepos = 2; - else - mbytepos = 1; -#endif /* DSPMBYTE */ - } - wptr++; - if (cmap(qu, _ESC)) - qu = 0; - } - if (closequotes && qu && !cmap(qu, _ESC)) - *bptr++ = (Char) qu; - *bptr = '\0'; - if (ndel) - DeleteBack(ndel); - return InsertStr(buffer); -} /* end insert_meta */ - - - -/* is_prefix(): - * return true if check matches initial chars in template - * This differs from PWB imatch in that if check is null - * it matches anything - */ -static int -is_prefix(check, template) - register Char *check, *template; -{ - for (; *check; check++, template++) - if ((*check & TRIM) != (*template & TRIM)) - return (FALSE); - return (TRUE); -} /* end is_prefix */ - - -/* is_prefixmatch(): - * return true if check matches initial chars in template - * This differs from PWB imatch in that if check is null - * it matches anything - * and matches on shortening of commands - */ -static int -is_prefixmatch(check, template, igncase) - Char *check, *template; - int igncase; -{ - Char MCH1, MCH2; - - for (; *check; check++, template++) { - if ((*check & TRIM) != (*template & TRIM)) { - MCH1 = (*check & TRIM); - MCH2 = (*template & TRIM); - MCH1 = Isupper(MCH1) ? Tolower(MCH1) : MCH1; - MCH2 = Isupper(MCH2) ? Tolower(MCH2) : MCH2; - if (MCH1 != MCH2) { - if (!igncase && ((*check & TRIM) == '-' || - (*check & TRIM) == '.' || - (*check & TRIM) == '_')) { - MCH1 = MCH2 = (*check & TRIM); - if (MCH1 == '_') { - MCH2 = '-'; - } else if (MCH1 == '-') { - MCH2 = '_'; - } - for (;*template && (*template & TRIM) != MCH1 && - (*template & TRIM) != MCH2; template++) - continue; - if (!*template) { - return (FALSE); - } - } else { - return (FALSE); - } - } - } - } - return (TRUE); -} /* end is_prefixmatch */ - - -/* is_suffix(): - * Return true if the chars in template appear at the - * end of check, I.e., are it's suffix. - */ -static int -is_suffix(check, template) - register Char *check, *template; -{ - register Char *t, *c; - - for (t = template; *t++;) - continue; - for (c = check; *c++;) - continue; - for (;;) { - if (t == template) - return 1; - if (c == check || (*--t & TRIM) != (*--c & TRIM)) - return 0; - } -} /* end is_suffix */ - - -/* ignored(): - * Return true if this is an ignored item - */ -static int -ignored(item) - register Char *item; -{ - struct varent *vp; - register Char **cp; - - if ((vp = adrof(STRfignore)) == NULL || (cp = vp->vec) == NULL) - return (FALSE); - for (; *cp != NULL; cp++) - if (is_suffix(item, *cp)) - return (TRUE); - return (FALSE); -} /* end ignored */ - - - -/* starting_a_command(): - * return true if the command starting at wordstart is a command - */ -int -starting_a_command(wordstart, inputline) - register Char *wordstart, *inputline; -{ - register Char *ptr, *ncmdstart; - int count; - static Char - cmdstart[] = {'`', ';', '&', '(', '|', '\0'}, - cmdalive[] = {' ', '\t', '\'', '"', '<', '>', '\0'}; - - /* - * Find if the number of backquotes is odd or even. - */ - for (ptr = wordstart, count = 0; - ptr >= inputline; - count += (*ptr-- == '`')) - continue; - /* - * if the number of backquotes is even don't include the backquote char in - * the list of command starting delimiters [if it is zero, then it does not - * matter] - */ - ncmdstart = cmdstart + EVEN(count); - - /* - * look for the characters previous to this word if we find a command - * starting delimiter we break. if we find whitespace and another previous - * word then we are not a command - * - * count is our state machine: 0 looking for anything 1 found white-space - * looking for non-ws - */ - for (count = 0; wordstart >= inputline; wordstart--) { - if (*wordstart == '\0') - continue; - if (Strchr(ncmdstart, *wordstart)) - break; - /* - * found white space - */ - if ((ptr = Strchr(cmdalive, *wordstart)) != NULL) - count = 1; - if (count == 1 && !ptr) - return (FALSE); - } - - if (wordstart > inputline) - switch (*wordstart) { - case '&': /* Look for >& */ - while (wordstart > inputline && - (*--wordstart == ' ' || *wordstart == '\t')) - continue; - if (*wordstart == '>') - return (FALSE); - break; - case '(': /* check for foreach, if etc. */ - while (wordstart > inputline && - (*--wordstart == ' ' || *wordstart == '\t')) - continue; - if (!iscmdmeta(*wordstart) && - (*wordstart != ' ' && *wordstart != '\t')) - return (FALSE); - break; - default: - break; - } - return (TRUE); -} /* end starting_a_command */ - - -/* recognize(): - * Object: extend what user typed up to an ambiguity. - * Algorithm: - * On first match, copy full item (assume it'll be the only match) - * On subsequent matches, shorten exp_name to the first - * character mismatch between exp_name and item. - * If we shorten it back to the prefix length, stop searching. - */ -static int -recognize(exp_name, item, name_length, numitems, enhanced) - Char *exp_name, *item; - int name_length, numitems, enhanced; -{ - Char MCH1, MCH2; - register Char *x, *ent; - register int len = 0; -#ifdef WINNT - struct varent *vp; - int igncase; - igncase = (vp = adrof(STRcomplete)) != NULL && - Strcmp(*(vp->vec), STRigncase) == 0; -#endif /* WINNT */ - - if (numitems == 1) { /* 1st match */ - copyn(exp_name, item, MAXNAMLEN); - return (0); - } - if (!enhanced -#ifdef WINNT - && !igncase -#endif /* WINNT */ - ) { - for (x = exp_name, ent = item; *x && (*x & TRIM) == (*ent & TRIM); x++, ent++) - len++; - } else { - for (x = exp_name, ent = item; *x; x++, ent++) { - MCH1 = *x & TRIM; - MCH2 = *ent & TRIM; - MCH1 = Isupper(MCH1) ? Tolower(MCH1) : MCH1; - MCH2 = Isupper(MCH2) ? Tolower(MCH2) : MCH2; - if (MCH1 != MCH2) - break; - len++; - } - if (*x || !*ent) /* Shorter or exact match */ - copyn(exp_name, item, MAXNAMLEN); - } - *x = '\0'; /* Shorten at 1st char diff */ - if (!(match_unique_match || is_set(STRrecexact) || (enhanced && *ent)) && len == name_length) /* Ambiguous to prefix? */ - return (-1); /* So stop now and save time */ - return (0); -} /* end recognize */ - - -/* tw_collect_items(): - * Collect items that match target. - * SPELL command: - * Returns the spelling distance of the closest match. - * else - * Returns the number of items found. - * If none found, but some ignored items were found, - * It returns the -number of ignored items. - */ -static int -tw_collect_items(command, looking, exp_dir, exp_name, target, pat, flags) - COMMAND command; - int looking; - Char *exp_dir, *exp_name, *target, *pat; - int flags; - -{ - int done = FALSE; /* Search is done */ - int showdots; /* Style to show dot files */ - int nignored = 0; /* Number of fignored items */ - int numitems = 0; /* Number of matched items */ - int name_length = (int) Strlen(target); /* Length of prefix (file name) */ - int exec_check = flags & TW_EXEC_CHK;/* need to check executability */ - int dir_check = flags & TW_DIR_CHK; /* Need to check for directories */ - int text_check = flags & TW_TEXT_CHK;/* Need to check for non-directories */ - int dir_ok = flags & TW_DIR_OK; /* Ignore directories? */ - int gpat = flags & TW_PAT_OK; /* Match against a pattern */ - int ignoring = flags & TW_IGN_OK; /* Use fignore? */ - int d = 4, nd; /* Spelling distance */ - Char *item, *ptr; - Char buf[MAXPATHLEN+1]; - struct varent *vp; - int len, enhanced; - int cnt = 0; - int igncase = 0; - - - flags = 0; - - showdots = DOT_NONE; - if ((ptr = varval(STRlistflags)) != STRNULL) - while (*ptr) - switch (*ptr++) { - case 'a': - showdots = DOT_ALL; - break; - case 'A': - showdots = DOT_NOT; - break; - default: - break; - } - - while (!done && (item = (*tw_next_entry[looking])(exp_dir, &flags))) { -#ifdef TDEBUG - xprintf("item = %S\n", item); -#endif - switch (looking) { - case TW_FILE: - case TW_DIRECTORY: - case TW_TEXT: - /* - * Don't match . files on null prefix match - */ - if (showdots == DOT_NOT && (ISDOT(item) || ISDOTDOT(item))) - done = TRUE; - if (name_length == 0 && item[0] == '.' && showdots == DOT_NONE) - done = TRUE; - break; - - case TW_COMMAND: - exec_check = flags & TW_EXEC_CHK; - dir_ok = flags & TW_DIR_OK; - break; - - default: - break; - } - - if (done) { - done = FALSE; - continue; - } - - switch (command) { - - case SPELL: /* correct the spelling of the last bit */ - if (name_length == 0) {/* zero-length word can't be misspelled */ - exp_name[0] = '\0';/* (not trying is important for ~) */ - d = 0; - done = TRUE; - break; - } - if (gpat && !Gmatch(item, pat)) - break; - /* - * Swapped the order of the spdist() arguments as suggested - * by eeide@asylum.cs.utah.edu (Eric Eide) - */ - nd = spdist(target, item); /* test the item against original */ - if (nd <= d && nd != 4) { - if (!(exec_check && !executable(exp_dir, item, dir_ok))) { - (void) Strcpy(exp_name, item); - d = nd; - if (d == 0) /* if found it exactly */ - done = TRUE; - } - } - else if (nd == 4) { - if (spdir(exp_name, exp_dir, item, target)) { - if (exec_check && !executable(exp_dir, exp_name, dir_ok)) - break; -#ifdef notdef - /* - * We don't want to stop immediately, because - * we might find an exact/better match later. - */ - d = 0; - done = TRUE; -#endif - d = 3; - } - } - break; - - case LIST: - case RECOGNIZE: - case RECOGNIZE_ALL: - case RECOGNIZE_SCROLL: - -#ifdef WINNT - igncase = (vp = adrof(STRcomplete)) != NULL && - Strcmp(*(vp->vec), STRigncase) == 0; -#endif /* WINNT */ - enhanced = (vp = adrof(STRcomplete)) != NULL && !Strcmp(*(vp->vec),STRenhance); - if (enhanced || igncase) { - if (!is_prefixmatch(target, item, igncase)) - break; - } else { - if (!is_prefix(target, item)) - break; - } - - if (exec_check && !executable(exp_dir, item, dir_ok)) - break; - - if (dir_check && !isadirectory(exp_dir, item)) - break; - - if (text_check && isadirectory(exp_dir, item)) - break; - - /* - * Only pattern match directories if we're checking - * for directories. - */ - if (gpat && !Gmatch(item, pat) && - (dir_check || !isadirectory(exp_dir, item))) - break; - - /* - * Remove duplicates in command listing and completion - * AFEB added code for TW_LOGNAME and TW_USER cases - */ - if (looking == TW_COMMAND || looking == TW_LOGNAME - || looking == TW_USER || command == LIST) { - copyn(buf, item, MAXPATHLEN); - len = (int) Strlen(buf); - switch (looking) { - case TW_COMMAND: - if (!(dir_ok && exec_check)) - break; - if (filetype(exp_dir, item) == '/') { - buf[len++] = '/'; - buf[len] = '\0'; - } - break; - - case TW_FILE: - case TW_DIRECTORY: - buf[len++] = filetype(exp_dir, item); - buf[len] = '\0'; - break; - - default: - break; - } - if ((looking == TW_COMMAND || looking == TW_USER - || looking == TW_LOGNAME) && tw_item_find(buf)) - break; - else { - /* maximum length 1 (NULL) + 1 (~ or $) + 1 (filetype) */ - ptr = tw_item_add(len + 3); - copyn(ptr, buf, MAXPATHLEN); - if (command == LIST) - numitems++; - } - } - - if (command == RECOGNIZE || command == RECOGNIZE_ALL || - command == RECOGNIZE_SCROLL) { - if (ignoring && ignored(item)) { - nignored++; - break; - } - else if (command == RECOGNIZE_SCROLL) { - add_scroll_tab(item); - cnt++; - } - - if (match_unique_match || is_set(STRrecexact)) { - if (StrQcmp(target, item) == 0) { /* EXACT match */ - copyn(exp_name, item, MAXNAMLEN); - numitems = 1; /* fake into expanding */ - non_unique_match = TRUE; - done = TRUE; - break; - } - } - if (recognize(exp_name, item, name_length, ++numitems, enhanced)) - if (command != RECOGNIZE_SCROLL) - done = TRUE; - if (enhanced && (int)Strlen(exp_name) < name_length) - copyn(exp_name, target, MAXNAMLEN); - } - break; - - default: - break; - } -#ifdef TDEBUG - xprintf("done item = %S\n", item); -#endif - } - - - if (command == RECOGNIZE_SCROLL) { - if ((cnt <= curchoice) || (curchoice == -1)) { - curchoice = -1; - nignored = 0; - numitems = 0; - } else if (numitems > 1) { - if (curchoice < -1) - curchoice = cnt - 1; - choose_scroll_tab(&exp_name, cnt); - numitems = 1; - } - } - free_scroll_tab(); - - if (command == SPELL) - return d; - else { - if (ignoring && numitems == 0 && nignored > 0) - return -nignored; - else - return numitems; - } -} - - -/* tw_suffix(): - * Find and return the appropriate suffix character - */ -/*ARGSUSED*/ -static Char -tw_suffix(looking, exp_dir, exp_name, target, name) - int looking; - Char *exp_dir, *exp_name, *target, *name; -{ - Char *ptr; - struct varent *vp; - - USE(name); - (void) strip(exp_name); - - switch (looking) { - - case TW_LOGNAME: - return '/'; - - case TW_VARIABLE: - /* - * Don't consider array variables or empty variables - */ - if ((vp = adrof(exp_name)) != NULL) { - if ((ptr = vp->vec[0]) == NULL || *ptr == '\0' || - vp->vec[1] != NULL) - return ' '; - } - else if ((ptr = tgetenv(exp_name)) == NULL || *ptr == '\0') - return ' '; - - *--target = '\0'; - - return isadirectory(exp_dir, ptr) ? '/' : ' '; - - - case TW_DIRECTORY: - return '/'; - - case TW_COMMAND: - case TW_FILE: - return isadirectory(exp_dir, exp_name) ? '/' : ' '; - - case TW_ALIAS: - case TW_VARLIST: - case TW_WORDLIST: - case TW_SHELLVAR: - case TW_ENVVAR: - case TW_USER: - case TW_BINDING: - case TW_LIMIT: - case TW_SIGNAL: - case TW_JOB: - case TW_COMPLETION: - case TW_TEXT: - case TW_GRPNAME: - return ' '; - - default: - return '\0'; - } -} /* end tw_suffix */ - - -/* tw_fixword(): - * Repair a word after a spalling or a recognizwe - */ -static void -tw_fixword(looking, word, dir, exp_name, max_word_length) - int looking; - Char *word, *dir, *exp_name; - int max_word_length; -{ - Char *ptr; - - switch (looking) { - case TW_LOGNAME: - copyn(word, STRtilde, 1); - break; - - case TW_VARIABLE: - if ((ptr = Strrchr(word, '$')) != NULL) - *++ptr = '\0'; /* Delete after the dollar */ - else - word[0] = '\0'; - break; - - case TW_DIRECTORY: - case TW_FILE: - case TW_TEXT: - copyn(word, dir, max_word_length); /* put back dir part */ - break; - - default: - word[0] = '\0'; - break; - } - - (void) quote(exp_name); - catn(word, exp_name, max_word_length); /* add extended name */ -} /* end tw_fixword */ - - -/* tw_collect(): - * Collect items. Return -1 in case we were interrupted or - * the return value of tw_collect - * This is really a wrapper for tw_collect_items, serving two - * purposes: - * 1. Handles interrupt cleanups. - * 2. Retries if we had no matches, but there were ignored matches - */ -static int -tw_collect(command, looking, exp_dir, exp_name, target, pat, flags, dir_fd) - COMMAND command; - int looking; - Char *exp_dir, *exp_name, **target, *pat; - int flags; - DIR *dir_fd; -{ - static int ni; /* static so we don't get clobbered */ - jmp_buf_t osetexit; - -#ifdef TDEBUG - xprintf("target = %S\n", *target); -#endif - ni = 0; - getexit(osetexit); - for (;;) { - (*tw_start_entry[looking])(dir_fd, pat); - InsideCompletion = 1; - if (setexit()) { - /* interrupted, clean up */ - resexit(osetexit); - InsideCompletion = 0; - haderr = 0; - -#if defined(SOLARIS2) && defined(i386) && !defined(__GNUC__) - /* Compiler bug? (from PWP) */ - if ((looking == TW_LOGNAME) || (looking == TW_USER)) - tw_logname_end(); - else - if (looking == TW_GRPNAME) - tw_grpname_end(); - else - tw_dir_end(); -#else /* !(SOLARIS2 && i386 && !__GNUC__) */ - (*tw_end_entry[looking])(); -#endif /* !(SOLARIS2 && i386 && !__GNUC__) */ - - /* flag error */ - return(-1); - } - if ((ni = tw_collect_items(command, looking, exp_dir, exp_name, - *target, pat, - ni >= 0 ? flags : - flags & ~TW_IGN_OK)) >= 0) { - resexit(osetexit); - InsideCompletion = 0; - -#if defined(SOLARIS2) && defined(i386) && !defined(__GNUC__) - /* Compiler bug? (from PWP) */ - if ((looking == TW_LOGNAME) || (looking == TW_USER)) - tw_logname_end(); - else - if (looking == TW_GRPNAME) - tw_grpname_end(); - else - tw_dir_end(); -#else /* !(SOLARIS2 && i386 && !__GNUC__) */ - (*tw_end_entry[looking])(); -#endif /* !(SOLARIS2 && i386 && !__GNUC__) */ - - return(ni); - } - } -} /* end tw_collect */ - - -/* tw_list_items(): - * List the items that were found - * - * NOTE instead of looking at numerical vars listmax and listmaxrows - * we can look at numerical var listmax, and have a string value - * listmaxtype (or similar) than can have values 'items' and 'rows' - * (by default interpreted as 'items', for backwards compatibility) - */ -static void -tw_list_items(looking, numitems, list_max) - int looking, numitems, list_max; -{ - Char *ptr; - int max_items = 0; - int max_rows = 0; - - if ((ptr = varval(STRlistmax)) != STRNULL) { - while (*ptr) { - if (!Isdigit(*ptr)) { - max_items = 0; - break; - } - max_items = max_items * 10 + *ptr++ - '0'; - } - if ((max_items > 0) && (numitems > max_items) && list_max) - max_items = numitems; - else - max_items = 0; - } - - if (max_items == 0 && (ptr = varval(STRlistmaxrows)) != STRNULL) { - int rows; - - while (*ptr) { - if (!Isdigit(*ptr)) { - max_rows = 0; - break; - } - max_rows = max_rows * 10 + *ptr++ - '0'; - } - if (max_rows != 0 && looking != TW_JOB) - rows = find_rows(tw_item_get(), numitems, TRUE); - else - rows = numitems; /* underestimate for lines wider than the termH */ - if ((max_rows > 0) && (rows > max_rows) && list_max) - max_rows = rows; - else - max_rows = 0; - } - - - if (max_items || max_rows) { - char tc; - const char *name; - int maxs; - - if (max_items) { - name = CGETS(30, 5, "items"); - maxs = max_items; - } - else { - name = CGETS(30, 6, "rows"); - maxs = max_rows; - } - - xprintf(CGETS(30, 7, "There are %d %s, list them anyway? [n/y] "), - maxs, name); - flush(); - /* We should be in Rawmode here, so no \n to catch */ - (void) read(SHIN, &tc, 1); - xprintf("%c\r\n", tc); /* echo the char, do a newline */ - /* - * Perhaps we should use the yesexpr from the - * actual locale - */ - if (strchr(CGETS(30, 13, "Yy"), tc) == NULL) - return; - } - - if (looking != TW_SIGNAL) - qsort((ptr_t) tw_item_get(), (size_t) numitems, sizeof(Char *), - (int (*) __P((const void *, const void *))) fcompare); - if (looking != TW_JOB) - print_by_column(STRNULL, tw_item_get(), numitems, TRUE); - else { - /* - * print one item on every line because jobs can have spaces - * and it is confusing. - */ - int i; - Char **w = tw_item_get(); - - for (i = 0; i < numitems; i++) { - xprintf("%S", w[i]); - if (Tty_raw_mode) - xputchar('\r'); - xputchar('\n'); - } - } -} /* end tw_list_items */ - - -/* t_search(): - * Perform a RECOGNIZE, LIST or SPELL command on string "word". - * - * Return value: - * >= 0: SPELL command: "distance" (see spdist()) - * other: No. of items found - * < 0: Error (message or beep is output) - */ -/*ARGSUSED*/ -int -t_search(word, wp, command, max_word_length, looking, list_max, pat, suf) - Char *word, *wp; /* original end-of-word */ - COMMAND command; - int max_word_length, looking, list_max; - Char *pat; - int suf; -{ - int numitems, /* Number of items matched */ - flags = 0, /* search flags */ - gpat = pat[0] != '\0', /* Glob pattern search */ - nd; /* Normalized directory return */ - Char exp_dir[FILSIZ + 1], /* dir after ~ expansion */ - dir[FILSIZ + 1], /* /x/y/z/ part in /x/y/z/f */ - exp_name[MAXNAMLEN + 1], /* the recognized (extended) */ - name[MAXNAMLEN + 1], /* f part in /d/d/d/f name */ - *target; /* Target to expand/correct/list */ - DIR *dir_fd = NULL; - - USE(wp); - - /* - * bugfix by Marty Grossman (grossman@CC5.BBN.COM): directory listing can - * dump core when interrupted - */ - tw_item_free(); - - non_unique_match = FALSE; /* See the recexact code below */ - - extract_dir_and_name(word, dir, name); - - /* - * SPECIAL HARDCODED COMPLETIONS: - * foo$variable -> TW_VARIABLE - * ~user -> TW_LOGNAME - * - */ - if ((*word == '~') && (Strchr(word, '/') == NULL)) { - looking = TW_LOGNAME; - target = name; - gpat = 0; /* Override pattern mechanism */ - } - else if ((target = Strrchr(name, '$')) != 0 && - (Strchr(name, '/') == NULL)) { - target++; - looking = TW_VARIABLE; - gpat = 0; /* Override pattern mechanism */ - } - else - target = name; - - /* - * Try to figure out what we should be looking for - */ - if (looking & TW_PATH) { - gpat = 0; /* pattern holds the pathname to be used */ - copyn(exp_dir, pat, MAXNAMLEN); - if (exp_dir[Strlen(exp_dir) - 1] != '/') - catn(exp_dir, STRslash, MAXNAMLEN); - catn(exp_dir, dir, MAXNAMLEN); - } - else - exp_dir[0] = '\0'; - - switch (looking & ~TW_PATH) { - case TW_NONE: - return -1; - - case TW_ZERO: - looking = TW_FILE; - break; - - case TW_COMMAND: - if (Strchr(word, '/') || (looking & TW_PATH)) { - looking = TW_FILE; - flags |= TW_EXEC_CHK; - flags |= TW_DIR_OK; - } -#ifdef notdef - /* PWP: don't even bother when doing ALL of the commands */ - if (looking == TW_COMMAND && (*word == '\0')) - return (-1); -#endif - break; - - - case TW_VARLIST: - case TW_WORDLIST: - gpat = 0; /* pattern holds the name of the variable */ - break; - - case TW_EXPLAIN: - if (command == LIST && pat != NULL) { - xprintf("%S", pat); - if (Tty_raw_mode) - xputchar('\r'); - xputchar('\n'); - } - return 2; - - default: - break; - } - - /* - * let fignore work only when we are not using a pattern - */ - flags |= (gpat == 0) ? TW_IGN_OK : TW_PAT_OK; - -#ifdef TDEBUG - xprintf(CGETS(30, 8, "looking = %d\n"), looking); -#endif - - switch (looking) { - case TW_ALIAS: - case TW_SHELLVAR: - case TW_ENVVAR: - case TW_BINDING: - case TW_LIMIT: - case TW_SIGNAL: - case TW_JOB: - case TW_COMPLETION: - case TW_GRPNAME: - break; - - - case TW_VARIABLE: - if ((nd = expand_dir(dir, exp_dir, &dir_fd, command)) != 0) - return nd; - break; - - case TW_DIRECTORY: - flags |= TW_DIR_CHK; - -#ifdef notyet - /* - * This is supposed to expand the directory stack. - * Problems: - * 1. Slow - * 2. directories with the same name - */ - flags |= TW_DIR_OK; -#endif -#ifdef notyet - /* - * Supposed to do delayed expansion, but it is inconsistent - * from a user-interface point of view, since it does not - * immediately obey addsuffix - */ - if ((nd = expand_dir(dir, exp_dir, &dir_fd, command)) != 0) - return nd; - if (isadirectory(exp_dir, name)) { - if (exp_dir[0] != '\0' || name[0] != '\0') { - catn(dir, name, MAXNAMLEN); - if (dir[Strlen(dir) - 1] != '/') - catn(dir, STRslash, MAXNAMLEN); - if ((nd = expand_dir(dir, exp_dir, &dir_fd, command)) != 0) - return nd; - if (word[Strlen(word) - 1] != '/') - catn(word, STRslash, MAXNAMLEN); - name[0] = '\0'; - } - } -#endif - if ((nd = expand_dir(dir, exp_dir, &dir_fd, command)) != 0) - return nd; - break; - - case TW_TEXT: - flags |= TW_TEXT_CHK; - /*FALLTHROUGH*/ - case TW_FILE: - if ((nd = expand_dir(dir, exp_dir, &dir_fd, command)) != 0) - return nd; - break; - - case TW_PATH | TW_TEXT: - case TW_PATH | TW_FILE: - case TW_PATH | TW_DIRECTORY: - case TW_PATH | TW_COMMAND: - if ((dir_fd = opendir(short2str(exp_dir))) == NULL) { - xprintf("%S: %s\n", exp_dir, strerror(errno)); - return -1; - } - if (exp_dir[Strlen(exp_dir) - 1] != '/') - catn(exp_dir, STRslash, MAXNAMLEN); - - looking &= ~TW_PATH; - - switch (looking) { - case TW_TEXT: - flags |= TW_TEXT_CHK; - break; - - case TW_FILE: - break; - - case TW_DIRECTORY: - flags |= TW_DIR_CHK; - break; - - case TW_COMMAND: - copyn(target, word, MAXNAMLEN); /* so it can match things */ - break; - - default: - abort(); /* Cannot happen */ - break; - } - break; - - case TW_LOGNAME: - word++; - /*FALLTHROUGH*/ - case TW_USER: - /* - * Check if the spelling was already correct - * From: Rob McMahon <cudcv@cu.warwick.ac.uk> - */ - if (command == SPELL && getpwnam(short2str(word)) != NULL) { -#ifdef YPBUGS - fix_yp_bugs(); -#endif /* YPBUGS */ - return (0); - } - copyn(name, word, MAXNAMLEN); /* name sans ~ */ - if (looking == TW_LOGNAME) - word--; - break; - - case TW_COMMAND: - case TW_VARLIST: - case TW_WORDLIST: - copyn(target, word, MAXNAMLEN); /* so it can match things */ - break; - - default: - xprintf(CGETS(30, 9, - "\n%s internal error: I don't know what I'm looking for!\n"), - progname); - NeedsRedraw = 1; - return (-1); - } - - numitems = tw_collect(command, looking, exp_dir, exp_name, - &target, pat, flags, dir_fd); - if (numitems == -1) - return -1; - - switch (command) { - case RECOGNIZE: - case RECOGNIZE_ALL: - case RECOGNIZE_SCROLL: - if (numitems <= 0) - return (numitems); - - tw_fixword(looking, word, dir, exp_name, max_word_length); - - if (!match_unique_match && is_set(STRaddsuffix) && numitems == 1) { - Char suffix[2]; - - suffix[1] = '\0'; - switch (suf) { - case 0: /* Automatic suffix */ - suffix[0] = tw_suffix(looking, exp_dir, exp_name, target, name); - break; - - case -1: /* No suffix */ - return numitems; - - default: /* completion specified suffix */ - suffix[0] = (Char) suf; - break; - } - catn(word, suffix, max_word_length); - } - return numitems; - - case LIST: - tw_list_items(looking, numitems, list_max); - tw_item_free(); - return (numitems); - - case SPELL: - tw_fixword(looking, word, dir, exp_name, max_word_length); - return (numitems); - - default: - xprintf("Bad tw_command\n"); - return (0); - } -} /* end t_search */ - - -/* extract_dir_and_name(): - * parse full path in file into 2 parts: directory and file names - * Should leave final slash (/) at end of dir. - */ -static void -extract_dir_and_name(path, dir, name) - Char *path, *dir, *name; -{ - register Char *p; - - p = Strrchr(path, '/'); -#ifdef WINNT - if (p == NULL) - p = Strrchr(path, ':'); -#endif /* WINNT */ - if (p == NULL) { - copyn(name, path, MAXNAMLEN); - dir[0] = '\0'; - } - else { - p++; - copyn(name, p, MAXNAMLEN); - copyn(dir, path, p - path); - } -} /* end extract_dir_and_name */ - - -/* dollar(): - * expand "/$old1/$old2/old3/" - * to "/value_of_old1/value_of_old2/old3/" - */ -Char * -dollar(new, old) - Char *new; - const Char *old; -{ - Char *p; - size_t space; - - for (space = FILSIZ, p = new; *old && space > 0;) - if (*old != '$') { - *p++ = *old++; - space--; - } - else { - if (expdollar(&p, &old, &space, QUOTE) == NULL) - return NULL; - } - *p = '\0'; - return (new); -} /* end dollar */ - - -/* tilde(): - * expand ~person/foo to home_directory_of_person/foo - * or =<stack-entry> to <dir in stack entry> - */ -static Char * -tilde(new, old) - Char *new, *old; -{ - register Char *o, *p; - - switch (old[0]) { - case '~': - for (p = new, o = &old[1]; *o && *o != '/'; *p++ = *o++) - continue; - *p = '\0'; - if (gethdir(new)) { - new[0] = '\0'; - return NULL; - } - (void) Strcat(new, o); - return new; - - case '=': - if ((p = globequal(new, old)) == NULL) { - *new = '\0'; - return NULL; - } - if (p == new) - return new; - /*FALLTHROUGH*/ - - default: - (void) Strcpy(new, old); - return new; - } -} /* end tilde */ - - -/* expand_dir(): - * Open the directory given, expanding ~user and $var - * Optionally normalize the path given - */ -static int -expand_dir(dir, edir, dfd, cmd) - Char *dir, *edir; - DIR **dfd; - COMMAND cmd; -{ - Char *nd = NULL; - Char tdir[MAXPATHLEN + 1]; - - if ((dollar(tdir, dir) == 0) || - (tilde(edir, tdir) == 0) || - !(nd = dnormalize(*edir ? edir : STRdot, symlinks == SYM_IGNORE || - symlinks == SYM_EXPAND)) || - ((*dfd = opendir(short2str(nd))) == NULL)) { - xfree((ptr_t) nd); - if (cmd == SPELL || SearchNoDirErr) - return (-2); - /* - * From: Amos Shapira <amoss@cs.huji.ac.il> - * Print a better message when completion fails - */ - xprintf("\n%S %s\n", - *edir ? edir : - (*tdir ? tdir : dir), - (errno == ENOTDIR ? CGETS(30, 10, "not a directory") : - (errno == ENOENT ? CGETS(30, 11, "not found") : - CGETS(30, 12, "unreadable")))); - NeedsRedraw = 1; - return (-1); - } - if (nd) { - if (*dir != '\0') { - Char *s, *d, *p; - - /* - * Copy and append a / if there was one - */ - for (p = edir; *p; p++) - continue; - if (*--p == '/') { - for (p = nd; *p; p++) - continue; - if (*--p != '/') - p = NULL; - } - for (d = edir, s = nd; (*d++ = *s++) != '\0';) - continue; - if (!p) { - *d-- = '\0'; - *d = '/'; - } - } - xfree((ptr_t) nd); - } - return 0; -} /* end expand_dir */ - - -/* nostat(): - * Returns true if the directory should not be stat'd, - * false otherwise. - * This way, things won't grind to a halt when you complete in /afs - * or very large directories. - */ -static bool -nostat(dir) - Char *dir; -{ - struct varent *vp; - register Char **cp; - - if ((vp = adrof(STRnostat)) == NULL || (cp = vp->vec) == NULL) - return FALSE; - for (; *cp != NULL; cp++) { - if (Strcmp(*cp, STRstar) == 0) - return TRUE; - if (Gmatch(dir, *cp)) - return TRUE; - } - return FALSE; -} /* end nostat */ - - -/* filetype(): - * Return a character that signifies a filetype - * symbology from 4.3 ls command. - */ -static Char -filetype(dir, file) - Char *dir, *file; -{ - if (dir) { - Char path[512]; - char *ptr; - struct stat statb; -#ifdef S_ISCDF - /* - * From: veals@crchh84d.bnr.ca (Percy Veals) - * An extra stat is required for HPUX CDF files. - */ - struct stat hpstatb; -#endif /* S_ISCDF */ - - if (nostat(dir)) return(' '); - - (void) Strcpy(path, dir); - catn(path, file, (int) (sizeof(path) / sizeof(Char))); - - if (lstat(ptr = short2str(path), &statb) != -1) - /* see above #define of lstat */ - { -#ifdef S_ISLNK - if (S_ISLNK(statb.st_mode)) { /* Symbolic link */ - if (adrof(STRlistlinks)) { - if (stat(ptr, &statb) == -1) - return ('&'); - else if (S_ISDIR(statb.st_mode)) - return ('>'); - else - return ('@'); - } - else - return ('@'); - } -#endif -#ifdef S_ISSOCK - if (S_ISSOCK(statb.st_mode)) /* Socket */ - return ('='); -#endif -#ifdef S_ISFIFO - if (S_ISFIFO(statb.st_mode)) /* Named Pipe */ - return ('|'); -#endif -#ifdef S_ISHIDDEN - if (S_ISHIDDEN(statb.st_mode)) /* Hidden Directory [aix] */ - return ('+'); -#endif -#ifdef S_ISCDF - (void) strcat(ptr, "+"); /* Must append a '+' and re-stat(). */ - if ((stat(ptr, &hpstatb) != -1) && S_ISCDF(hpstatb.st_mode)) - return ('+'); /* Context Dependent Files [hpux] */ -#endif -#ifdef S_ISNWK - if (S_ISNWK(statb.st_mode)) /* Network Special [hpux] */ - return (':'); -#endif -#ifdef S_ISCHR - if (S_ISCHR(statb.st_mode)) /* char device */ - return ('%'); -#endif -#ifdef S_ISBLK - if (S_ISBLK(statb.st_mode)) /* block device */ - return ('#'); -#endif -#ifdef S_ISDIR - if (S_ISDIR(statb.st_mode)) /* normal Directory */ - return ('/'); -#endif - if (statb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) - return ('*'); - } - } - return (' '); -} /* end filetype */ - - -/* isadirectory(): - * Return trus if the file is a directory - */ -static int -isadirectory(dir, file) /* return 1 if dir/file is a directory */ - Char *dir, *file; /* uses stat rather than lstat to get dest. */ -{ - if (dir) { - Char path[MAXPATHLEN]; - struct stat statb; - - (void) Strcpy(path, dir); - catn(path, file, (int) (sizeof(path) / sizeof(Char))); - if (stat(short2str(path), &statb) >= 0) { /* resolve through - * symlink */ -#ifdef S_ISSOCK - if (S_ISSOCK(statb.st_mode)) /* Socket */ - return 0; -#endif -#ifdef S_ISFIFO - if (S_ISFIFO(statb.st_mode)) /* Named Pipe */ - return 0; -#endif - if (S_ISDIR(statb.st_mode)) /* normal Directory */ - return 1; - } - } - return 0; -} /* end isadirectory */ - - - -/* find_rows(): - * Return how many rows needed to print sorted down columns - */ -static int -find_rows(items, count, no_file_suffix) - Char *items[]; - int count, no_file_suffix; -{ - register int i, columns, rows; - unsigned int maxwidth = 0; - - for (i = 0; i < count; i++) /* find widest string */ - maxwidth = max(maxwidth, (unsigned int) Strlen(items[i])); - - maxwidth += no_file_suffix ? 1 : 2; /* for the file tag and space */ - columns = (TermH + 1) / maxwidth; /* PWP: terminal size change */ - if (!columns) - columns = 1; - rows = (count + (columns - 1)) / columns; - - return rows; -} /* end rows_needed_by_print_by_column */ - - -/* print_by_column(): - * Print sorted down columns or across columns when the first - * word of $listflags shell variable contains 'x'. - * - */ -void -print_by_column(dir, items, count, no_file_suffix) - register Char *dir, *items[]; - int count, no_file_suffix; -{ - register int i, r, c, columns, rows; - unsigned int w, maxwidth = 0; - Char *val; - bool across; - - lbuffed = 0; /* turn off line buffering */ - - - across = ((val = varval(STRlistflags)) != STRNULL) && - (Strchr(val, 'x') != NULL); - - for (i = 0; i < count; i++) /* find widest string */ - maxwidth = max(maxwidth, (unsigned int) Strlen(items[i])); - - maxwidth += no_file_suffix ? 1 : 2; /* for the file tag and space */ - columns = TermH / maxwidth; /* PWP: terminal size change */ - if (!columns || !isatty(didfds ? 1 : SHOUT)) - columns = 1; - rows = (count + (columns - 1)) / columns; - - i = -1; - for (r = 0; r < rows; r++) { - for (c = 0; c < columns; c++) { - i = across ? (i + 1) : (c * rows + r); - - if (i < count) { - w = (unsigned int) Strlen(items[i]); - -#ifdef COLOR_LS_F - if (no_file_suffix) { - /* Print the command name */ - Char f = items[i][w - 1]; - items[i][w - 1] = 0; - print_with_color(items[i], w - 1, f); - } - else { - /* Print filename followed by '/' or '*' or ' ' */ - print_with_color(items[i], w, filetype(dir, items[i])); - w++; - } -#else /* ifndef COLOR_LS_F */ - if (no_file_suffix) { - /* Print the command name */ - xprintf("%S", items[i]); - } - else { - /* Print filename followed by '/' or '*' or ' ' */ - xprintf("%S%c", items[i], - filetype(dir, items[i])); - w++; - } -#endif /* COLOR_LS_F */ - - if (c < (columns - 1)) /* Not last column? */ - for (; w < maxwidth; w++) - xputchar(' '); - } - else if (across) - break; - } - if (Tty_raw_mode) - xputchar('\r'); - xputchar('\n'); - } - - lbuffed = 1; /* turn back on line buffering */ - flush(); -} /* end print_by_column */ - - -/* StrQcmp(): - * Compare strings ignoring the quoting chars - */ -int -StrQcmp(str1, str2) - register Char *str1, *str2; -{ - for (; *str1 && samecase(*str1 & TRIM) == samecase(*str2 & TRIM); - str1++, str2++) - continue; - /* - * The following case analysis is necessary so that characters which look - * negative collate low against normal characters but high against the - * end-of-string NUL. - */ - if (*str1 == '\0' && *str2 == '\0') - return (0); - else if (*str1 == '\0') - return (-1); - else if (*str2 == '\0') - return (1); - else - return ((*str1 & TRIM) - (*str2 & TRIM)); -} /* end StrQcmp */ - - -/* fcompare(): - * Comparison routine for qsort - */ -int -fcompare(file1, file2) - Char **file1, **file2; -{ - return (int) collate(*file1, *file2); -} /* end fcompare */ - - -/* catn(): - * Concatenate src onto tail of des. - * Des is a string whose maximum length is count. - * Always null terminate. - */ -void -catn(des, src, count) - register Char *des, *src; - int count; -{ - while (--count >= 0 && *des) - des++; - while (--count >= 0) - if ((*des++ = *src++) == 0) - return; - *des = '\0'; -} /* end catn */ - - -/* copyn(): - * like strncpy but always leave room for trailing \0 - * and always null terminate. - */ -void -copyn(des, src, count) - register Char *des, *src; - int count; -{ - while (--count >= 0) - if ((*des++ = *src++) == 0) - return; - *des = '\0'; -} /* end copyn */ - - -/* tgetenv(): - * like it's normal string counter-part - * [apollo uses that in tc.os.c, so it cannot be static] - */ -Char * -tgetenv(str) - Char *str; -{ - Char **var; - int len, res; - - len = (int) Strlen(str); - /* Search the STR_environ for the entry matching str. */ - for (var = STR_environ; var != NULL && *var != NULL; var++) - if (Strlen(*var) >= len && (*var)[len] == '=') { - /* Temporarily terminate the string so we can copy the variable - name. */ - (*var)[len] = '\0'; - res = StrQcmp(*var, str); - /* Restore the '=' and return a pointer to the value of the - environment variable. */ - (*var)[len] = '='; - if (res == 0) - return (&((*var)[len + 1])); - } - return (NULL); -} /* end tgetenv */ - - -struct scroll_tab_list *scroll_tab = 0; - -static void -add_scroll_tab(item) - Char *item; -{ - struct scroll_tab_list *new_scroll; - - new_scroll = (struct scroll_tab_list *) xmalloc((size_t) - sizeof(struct scroll_tab_list)); - new_scroll->element = Strsave(item); - new_scroll->next = scroll_tab; - scroll_tab = new_scroll; -} - -static void -choose_scroll_tab(exp_name, cnt) - Char **exp_name; - int cnt; -{ - struct scroll_tab_list *loop; - int tmp = cnt; - Char **ptr; - - ptr = (Char **) xmalloc((size_t) sizeof(Char *) * cnt); - - for(loop = scroll_tab; loop && (tmp >= 0); loop = loop->next) - ptr[--tmp] = loop->element; - - qsort((ptr_t) ptr, (size_t) cnt, sizeof(Char *), - (int (*) __P((const void *, const void *))) fcompare); - - copyn(*exp_name, ptr[curchoice], (int) Strlen(ptr[curchoice])); - xfree((ptr_t) ptr); -} - -static void -free_scroll_tab() -{ - struct scroll_tab_list *loop; - - while(scroll_tab) { - loop = scroll_tab; - scroll_tab = scroll_tab->next; - xfree((ptr_t) loop->element); - xfree((ptr_t) loop); - } -} |