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Diffstat (limited to 'contrib/tcsh/sh.file.c')
| -rw-r--r-- | contrib/tcsh/sh.file.c | 763 |
1 files changed, 0 insertions, 763 deletions
diff --git a/contrib/tcsh/sh.file.c b/contrib/tcsh/sh.file.c deleted file mode 100644 index 6955358..0000000 --- a/contrib/tcsh/sh.file.c +++ /dev/null @@ -1,763 +0,0 @@ -/* $Header: /p/tcsh/cvsroot/tcsh/sh.file.c,v 3.35 2006/08/23 15:03:14 christos Exp $ */ -/* - * sh.file.c: File completion for csh. This file is not used in tcsh. - */ -/*- - * 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. 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" -#include "ed.h" - -RCSID("$tcsh: sh.file.c,v 3.35 2006/08/23 15:03:14 christos Exp $") - -#if defined(FILEC) && defined(TIOCSTI) - -/* - * Tenex style file name recognition, .. and more. - * History: - * Author: Ken Greer, Sept. 1975, CMU. - * Finally got around to adding to the Cshell., Ken Greer, Dec. 1981. - */ - -#define ON 1 -#define OFF 0 -#ifndef TRUE -#define TRUE 1 -#endif -#ifndef FALSE -#define FALSE 0 -#endif - -#define ESC CTL_ESC('\033') - -typedef enum { - LIST, RECOGNIZE -} COMMAND; - -static void setup_tty (int); -static void back_to_col_1 (void); -static void pushback (const Char *); -static int filetype (const Char *, const Char *); -static void print_by_column (const Char *, Char *[], size_t); -static Char *tilde (const Char *); -static void retype (void); -static void beep (void); -static void print_recognized_stuff (const Char *); -static void extract_dir_and_name (const Char *, Char **, const Char **); -static Char *getitem (DIR *, int); -static size_t tsearch (Char *, COMMAND, size_t); -static int compare (const void *, const void *); -static int recognize (Char **, Char *, size_t, size_t); -static int is_prefix (const Char *, const Char *); -static int is_suffix (const Char *, const Char *); -static int ignored (const Char *); - - -/* - * Put this here so the binary can be patched with adb to enable file - * completion by default. Filec controls completion, nobeep controls - * ringing the terminal bell on incomplete expansions. - */ -int filec = 0; - -static void -setup_tty(int on) -{ -#ifdef TERMIO -# ifdef POSIX - struct termios tchars; -# else - struct termio tchars; -# endif /* POSIX */ - -# ifdef POSIX - (void) tcgetattr(SHIN, &tchars); -# else - (void) ioctl(SHIN, TCGETA, (ioctl_t) &tchars); -# endif /* POSIX */ - if (on) { - tchars.c_cc[VEOL] = ESC; - if (tchars.c_lflag & ICANON) -# ifdef POSIX - on = TCSADRAIN; -# else - on = TCSETA; -# endif /* POSIX */ - else { -# ifdef POSIX - on = TCSAFLUSH; -# else - on = TCSETAF; -# endif /* POSIX */ - tchars.c_lflag |= ICANON; - - } - } - else { - tchars.c_cc[VEOL] = _POSIX_VDISABLE; -# ifdef POSIX - on = TCSADRAIN; -# else - on = TCSETA; -# endif /* POSIX */ - } -# ifdef POSIX - (void) xtcsetattr(SHIN, on, &tchars); -# else - (void) ioctl(SHIN, on, (ioctl_t) &tchars); -# endif /* POSIX */ -#else - struct sgttyb sgtty; - static struct tchars tchars;/* INT, QUIT, XON, XOFF, EOF, BRK */ - - if (on) { - (void) ioctl(SHIN, TIOCGETC, (ioctl_t) & tchars); - tchars.t_brkc = ESC; - (void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars); - /* - * This must be done after every command: if the tty gets into raw or - * cbreak mode the user can't even type 'reset'. - */ - (void) ioctl(SHIN, TIOCGETP, (ioctl_t) & sgtty); - if (sgtty.sg_flags & (RAW | CBREAK)) { - sgtty.sg_flags &= ~(RAW | CBREAK); - (void) ioctl(SHIN, TIOCSETP, (ioctl_t) & sgtty); - } - } - else { - tchars.t_brkc = -1; - (void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars); - } -#endif /* TERMIO */ -} - -/* - * Move back to beginning of current line - */ -static void -back_to_col_1(void) -{ -#ifdef TERMIO -# ifdef POSIX - struct termios tty, tty_normal; -# else - struct termio tty, tty_normal; -# endif /* POSIX */ -#else - struct sgttyb tty, tty_normal; -#endif /* TERMIO */ - - pintr_disabled++; - cleanup_push(&pintr_disabled, disabled_cleanup); - -#ifdef TERMIO -# ifdef POSIX - (void) tcgetattr(SHOUT, &tty); -# else - (void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty_normal); -# endif /* POSIX */ - tty_normal = tty; - tty.c_iflag &= ~INLCR; - tty.c_oflag &= ~ONLCR; -# ifdef POSIX - (void) xtcsetattr(SHOUT, TCSANOW, &tty); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty); -# endif /* POSIX */ - (void) xwrite(SHOUT, "\r", 1); -# ifdef POSIX - (void) xtcsetattr(SHOUT, TCSANOW, &tty_normal); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal); -# endif /* POSIX */ -#else - (void) ioctl(SHIN, TIOCGETP, (ioctl_t) & tty); - tty_normal = tty; - tty.sg_flags &= ~CRMOD; - (void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty); - (void) xwrite(SHOUT, "\r", 1); - (void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty_normal); -#endif /* TERMIO */ - - cleanup_until(&pintr_disabled); -} - -/* - * Push string contents back into tty queue - */ -static void -pushback(const Char *string) -{ - const Char *p; -#ifdef TERMIO -# ifdef POSIX - struct termios tty, tty_normal; -# else - struct termio tty, tty_normal; -# endif /* POSIX */ -#else - struct sgttyb tty, tty_normal; -#endif /* TERMIO */ - - pintr_disabled++; - cleanup_push(&pintr_disabled, disabled_cleanup); - -#ifdef TERMIO -# ifdef POSIX - (void) tcgetattr(SHOUT, &tty); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty); -# endif /* POSIX */ - tty_normal = tty; - tty.c_lflag &= ~(ECHOKE | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL); -# ifdef POSIX - (void) xtcsetattr(SHOUT, TCSANOW, &tty); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty); -# endif /* POSIX */ - - for (p = string; *p != '\0'; p++) { - char buf[MB_LEN_MAX]; - size_t i, len; - - len = one_wctomb(buf, *p & CHAR); - for (i = 0; i < len; i++) - (void) ioctl(SHOUT, TIOCSTI, (ioctl_t) &buf[i]); - } -# ifdef POSIX - (void) xtcsetattr(SHOUT, TCSANOW, &tty_normal); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal); -# endif /* POSIX */ -#else - (void) ioctl(SHOUT, TIOCGETP, (ioctl_t) & tty); - tty_normal = tty; - tty.sg_flags &= ~ECHO; - (void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty); - - for (p = string; c = *p; p++) - (void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c); - (void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty_normal); -#endif /* TERMIO */ - - cleanup_until(&pintr_disabled); -} - -static int -filetype(const Char *dir, const Char *file) -{ - Char *path; - char *spath; - struct stat statb; - - path = Strspl(dir, file); - spath = short2str(path); - xfree(path); - if (lstat(spath, &statb) == 0) { - switch (statb.st_mode & S_IFMT) { - case S_IFDIR: - return ('/'); - - case S_IFLNK: - if (stat(spath, &statb) == 0 && /* follow it out */ - S_ISDIR(statb.st_mode)) - return ('>'); - else - return ('@'); - - case S_IFSOCK: - return ('='); - - default: - if (statb.st_mode & 0111) - return ('*'); - } - } - return (' '); -} - -/* - * Print sorted down columns - */ -static void -print_by_column(const Char *dir, Char *items[], size_t count) -{ - struct winsize win; - size_t i; - int rows, r, c, maxwidth = 0, columns; - - if (ioctl(SHOUT, TIOCGWINSZ, (ioctl_t) & win) < 0 || win.ws_col == 0) - win.ws_col = 80; - for (i = 0; i < count; i++) - maxwidth = maxwidth > (r = Strlen(items[i])) ? maxwidth : r; - maxwidth += 2; /* for the file tag and space */ - columns = win.ws_col / maxwidth; - if (columns == 0) - columns = 1; - rows = (count + (columns - 1)) / columns; - for (r = 0; r < rows; r++) { - for (c = 0; c < columns; c++) { - i = c * rows + r; - if (i < count) { - int w; - - xprintf("%S", items[i]); - xputchar(dir ? filetype(dir, items[i]) : ' '); - if (c < columns - 1) { /* last column? */ - w = Strlen(items[i]) + 1; - for (; w < maxwidth; w++) - xputchar(' '); - } - } - } - xputchar('\r'); - xputchar('\n'); - } -} - -/* - * Expand file name with possible tilde usage - * ~person/mumble - * expands to - * home_directory_of_person/mumble - */ -static Char * -tilde(const Char *old) -{ - const Char *o, *home; - struct passwd *pw; - - if (old[0] != '~') - return (Strsave(old)); - old++; - - for (o = old; *o != '\0' && *o != '/'; o++) - ; - if (o == old) - home = varval(STRhome); - else { - Char *person; - - person = Strnsave(old, o - old); - pw = xgetpwnam(short2str(person)); - xfree(person); - if (pw == NULL) - return (NULL); - home = str2short(pw->pw_dir); - } - return Strspl(home, o); -} - -/* - * Cause pending line to be printed - */ -static void -retype(void) -{ -#ifdef TERMIO -# ifdef POSIX - struct termios tty; - - (void) tcgetattr(SHOUT, &tty); -# else - struct termio tty; - - (void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty); -# endif /* POSIX */ - - tty.c_lflag |= PENDIN; - -# ifdef POSIX - (void) xtcsetattr(SHOUT, TCSANOW, &tty); -# else - (void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty); -# endif /* POSIX */ -#else - int pending_input = LPENDIN; - - (void) ioctl(SHOUT, TIOCLBIS, (ioctl_t) & pending_input); -#endif /* TERMIO */ -} - -static void -beep(void) -{ - if (adrof(STRnobeep) == 0) -#ifdef IS_ASCII - (void) xwrite(SHOUT, "\007", 1); -#else - { - unsigned char beep_ch = CTL_ESC('\007'); - (void) xwrite(SHOUT, &beep_ch, 1); - } -#endif -} - -/* - * Erase that silly ^[ and - * print the recognized part of the string - */ -static void -print_recognized_stuff(const Char *recognized_part) -{ - /* An optimized erasing of that silly ^[ */ - (void) putraw('\b'); - (void) putraw('\b'); - switch (Strlen(recognized_part)) { - - case 0: /* erase two Characters: ^[ */ - (void) putraw(' '); - (void) putraw(' '); - (void) putraw('\b'); - (void) putraw('\b'); - break; - - case 1: /* overstrike the ^, erase the [ */ - xprintf("%S", recognized_part); - (void) putraw(' '); - (void) putraw('\b'); - break; - - default: /* overstrike both Characters ^[ */ - xprintf("%S", recognized_part); - break; - } - flush(); -} - -/* - * 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(const Char *path, Char **dir, const Char **name) -{ - const Char *p; - - p = Strrchr(path, '/'); - if (p == NULL) - p = path; - else - p++; - *name = p; - *dir = Strnsave(path, p - path); -} - -static Char * -getitem(DIR *dir_fd, int looking_for_lognames) -{ - struct passwd *pw; - struct dirent *dirp; - - if (looking_for_lognames) { -#ifndef HAVE_GETPWENT - return (NULL); -#else - if ((pw = getpwent()) == NULL) - return (NULL); - return (str2short(pw->pw_name)); -#endif /* atp vmsposix */ - } - if ((dirp = readdir(dir_fd)) != NULL) - return (str2short(dirp->d_name)); - return (NULL); -} - -/* - * Perform a RECOGNIZE or LIST command on string "word". - */ -static size_t -tsearch(Char *word, COMMAND command, size_t max_word_length) -{ - DIR *dir_fd; - int ignoring = TRUE, nignored = 0; - int looking_for_lognames; - Char *tilded_dir = NULL, *dir = NULL; - Char *extended_name = NULL; - const Char *name; - Char *item; - struct blk_buf items = BLK_BUF_INIT; - size_t name_length; - - looking_for_lognames = (*word == '~') && (Strchr(word, '/') == NULL); - if (looking_for_lognames) { -#ifdef HAVE_GETPWENT - (void) setpwent(); -#endif - name = word + 1; /* name sans ~ */ - dir_fd = NULL; - cleanup_push(dir, xfree); - } - else { - extract_dir_and_name(word, &dir, &name); - cleanup_push(dir, xfree); - tilded_dir = tilde(dir); - if (tilded_dir == NULL) - goto end; - cleanup_push(tilded_dir, xfree); - dir_fd = opendir(*tilded_dir ? short2str(tilded_dir) : "."); - if (dir_fd == NULL) - goto end; - } - - name_length = Strlen(name); - cleanup_push(&extended_name, xfree_indirect); - cleanup_push(&items, bb_cleanup); -again: /* search for matches */ - while ((item = getitem(dir_fd, looking_for_lognames)) != NULL) { - if (!is_prefix(name, item)) - continue; - /* Don't match . files on null prefix match */ - if (name_length == 0 && item[0] == '.' && - !looking_for_lognames) - continue; - if (command == LIST) - bb_append(&items, Strsave(item)); - else { /* RECOGNIZE command */ - if (ignoring && ignored(item)) - nignored++; - else if (recognize(&extended_name, item, name_length, ++items.len)) - break; - } - } - if (ignoring && items.len == 0 && nignored > 0) { - ignoring = FALSE; - nignored = 0; - if (looking_for_lognames) { -#ifdef HAVE_GETPWENT - (void) setpwent(); -#endif /* atp vmsposix */ - } else - rewinddir(dir_fd); - goto again; - } - - if (looking_for_lognames) { -#ifndef HAVE_GETPWENT - (void) endpwent(); -#endif - } else - xclosedir(dir_fd); - if (items.len != 0) { - if (command == RECOGNIZE) { - if (looking_for_lognames) - copyn(word, STRtilde, 2);/*FIXBUF, sort of */ - else - /* put back dir part */ - copyn(word, dir, max_word_length);/*FIXBUF*/ - /* add extended name */ - catn(word, extended_name, max_word_length);/*FIXBUF*/ - } - else { /* LIST */ - qsort(items.vec, items.len, sizeof(items.vec[0]), compare); - print_by_column(looking_for_lognames ? NULL : tilded_dir, - items.vec, items.len); - } - } - end: - cleanup_until(dir); - return items.len; -} - - -static int -compare(const void *p, const void *q) -{ -#ifdef WIDE_STRINGS - errno = 0; - - return (wcscoll(*(Char *const *) p, *(Char *const *) q)); -#else - char *p1, *q1; - int res; - - p1 = strsave(short2str(*(Char *const *) p)); - q1 = strsave(short2str(*(Char *const *) q)); -# if defined(NLS) && defined(HAVE_STRCOLL) - res = strcoll(p1, q1); -# else - res = strcmp(p1, q1); -# endif /* NLS && HAVE_STRCOLL */ - xfree (p1); - xfree (q1); - return res; -#endif /* not WIDE_STRINGS */ -} - -/* - * 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 extended_name to the first - * Character mismatch between extended_name and item. - * If we shorten it back to the prefix length, stop searching. - */ -static int -recognize(Char **extended_name, Char *item, size_t name_length, - size_t numitems) -{ - if (numitems == 1) /* 1st match */ - *extended_name = Strsave(item); - else { /* 2nd & subsequent matches */ - Char *x, *ent; - size_t len = 0; - - x = *extended_name; - for (ent = item; *x && *x == *ent++; x++, len++); - *x = '\0'; /* Shorten at 1st Char diff */ - if (len == name_length) /* Ambiguous to prefix? */ - return (-1); /* So stop now and save time */ - } - return (0); -} - -/* - * 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(const Char *check, const Char *template) -{ - do - if (*check == 0) - return (TRUE); - while (*check++ == *template++); - return (FALSE); -} - -/* - * Return true if the Chars in template appear at the - * end of check, I.e., are it's suffix. - */ -static int -is_suffix(const Char *check, const Char *template) -{ - const Char *c, *t; - - for (c = check; *c++;); - for (t = template; *t++;); - for (;;) { - if (t == template) - return 1; - if (c == check || *--t != *--c) - return 0; - } -} - -static void -setup_tty_cleanup(void *dummy) -{ - USE(dummy); - setup_tty(OFF); -} - -size_t -tenex(Char *inputline, size_t inputline_size) -{ - size_t numitems; - ssize_t num_read; - char tinputline[BUFSIZE + 1];/*FIXBUF*/ - - setup_tty(ON); - cleanup_push(&num_read, setup_tty_cleanup); /* num_read is only a marker */ - - while ((num_read = xread(SHIN, tinputline, BUFSIZE)) > 0) {/*FIXBUF*/ - static const Char delims[] = {' ', '\'', '"', '\t', ';', '&', '<', - '>', '(', ')', '|', '^', '%', '\0'}; - Char *str_end, *word_start, last_Char, should_retype; - size_t space_left; - COMMAND command; - - tinputline[num_read] = 0; - Strcpy(inputline, str2short(tinputline));/*FIXBUF*/ - num_read = Strlen(inputline); - last_Char = CTL_ESC(ASC(inputline[num_read - 1]) & ASCII); - - if (last_Char == '\n' || (size_t)num_read == inputline_size) - break; - command = (last_Char == ESC) ? RECOGNIZE : LIST; - if (command == LIST) - xputchar('\n'); - str_end = &inputline[num_read]; - if (last_Char == ESC) - --str_end; /* wipeout trailing cmd Char */ - *str_end = '\0'; - /* - * Find LAST occurence of a delimiter in the inputline. The word start - * is one Character past it. - */ - for (word_start = str_end; word_start > inputline; --word_start) - if (Strchr(delims, word_start[-1])) - break; - space_left = inputline_size - (word_start - inputline) - 1; - numitems = tsearch(word_start, command, space_left); - - if (command == RECOGNIZE) { - /* print from str_end on */ - print_recognized_stuff(str_end); - if (numitems != 1) /* Beep = No match/ambiguous */ - beep(); - } - - /* - * Tabs in the input line cause trouble after a pushback. tty driver - * won't backspace over them because column positions are now - * incorrect. This is solved by retyping over current line. - */ - should_retype = FALSE; - if (Strchr(inputline, '\t')) { /* tab Char in input line? */ - back_to_col_1(); - should_retype = TRUE; - } - if (command == LIST) /* Always retype after a LIST */ - should_retype = TRUE; - if (should_retype) - printprompt(0, NULL); - pushback(inputline); - if (should_retype) - retype(); - } - cleanup_until(&num_read); - return (num_read); -} - -static int -ignored(const Char *item) -{ - struct varent *vp; - 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); -} -#endif /* FILEC && TIOCSTI */ |
