846 lines
20 KiB
C
846 lines
20 KiB
C
/* $Header: /src/pub/tcsh/sh.file.c,v 3.23 2003/02/08 20:03:26 christos Exp $ */
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/*
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* sh.file.c: File completion for csh. This file is not used in tcsh.
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "sh.h"
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#include "ed.h"
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RCSID("$Id: sh.file.c,v 3.23 2003/02/08 20:03:26 christos Exp $")
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#if defined(FILEC) && defined(TIOCSTI)
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/*
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* Tenex style file name recognition, .. and more.
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* History:
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* Author: Ken Greer, Sept. 1975, CMU.
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* Finally got around to adding to the Cshell., Ken Greer, Dec. 1981.
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*/
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#define ON 1
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#define OFF 0
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#define ESC CTL_ESC('\033')
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typedef enum {
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LIST, RECOGNIZE
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} COMMAND;
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static void setup_tty __P((int));
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static void back_to_col_1 __P((void));
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static void pushback __P((Char *));
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static void catn __P((Char *, Char *, int));
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static void copyn __P((Char *, Char *, int));
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static Char filetype __P((Char *, Char *));
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static void print_by_column __P((Char *, Char *[], int));
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static Char *tilde __P((Char *, Char *));
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static void retype __P((void));
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static void beep __P((void));
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static void print_recognized_stuff __P((Char *));
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static void extract_dir_and_name __P((Char *, Char *, Char *));
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static Char *getitem __P((DIR *, int));
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static void free_items __P((Char **, size_t));
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static int tsearch __P((Char *, COMMAND, int));
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static int compare __P((const ptr_t, const ptr_t));
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static int recognize __P((Char *, Char *, int, int));
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static int is_prefix __P((Char *, Char *));
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static int is_suffix __P((Char *, Char *));
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static int ignored __P((Char *));
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/*
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* Put this here so the binary can be patched with adb to enable file
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* completion by default. Filec controls completion, nobeep controls
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* ringing the terminal bell on incomplete expansions.
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*/
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bool filec = 0;
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static void
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setup_tty(on)
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int on;
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{
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#ifdef TERMIO
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# ifdef POSIX
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struct termios tchars;
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# else
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struct termio tchars;
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# endif /* POSIX */
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# ifdef POSIX
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(void) tcgetattr(SHIN, &tchars);
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# else
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(void) ioctl(SHIN, TCGETA, (ioctl_t) &tchars);
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# endif /* POSIX */
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if (on) {
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tchars.c_cc[VEOL] = ESC;
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if (tchars.c_lflag & ICANON)
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# ifdef POSIX
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on = TCSADRAIN;
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# else
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on = TCSETA;
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# endif /* POSIX */
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else {
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# ifdef POSIX
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on = TCSAFLUSH;
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# else
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on = TCSETAF;
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# endif /* POSIX */
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tchars.c_lflag |= ICANON;
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}
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}
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else {
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tchars.c_cc[VEOL] = _POSIX_VDISABLE;
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# ifdef POSIX
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on = TCSADRAIN;
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# else
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on = TCSETA;
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# endif /* POSIX */
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}
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# ifdef POSIX
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(void) tcsetattr(SHIN, on, &tchars);
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# else
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(void) ioctl(SHIN, on, (ioctl_t) &tchars);
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# endif /* POSIX */
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#else
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struct sgttyb sgtty;
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static struct tchars tchars;/* INT, QUIT, XON, XOFF, EOF, BRK */
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if (on) {
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(void) ioctl(SHIN, TIOCGETC, (ioctl_t) & tchars);
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tchars.t_brkc = ESC;
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(void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars);
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/*
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* This must be done after every command: if the tty gets into raw or
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* cbreak mode the user can't even type 'reset'.
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*/
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(void) ioctl(SHIN, TIOCGETP, (ioctl_t) & sgtty);
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if (sgtty.sg_flags & (RAW | CBREAK)) {
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sgtty.sg_flags &= ~(RAW | CBREAK);
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(void) ioctl(SHIN, TIOCSETP, (ioctl_t) & sgtty);
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}
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}
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else {
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tchars.t_brkc = -1;
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(void) ioctl(SHIN, TIOCSETC, (ioctl_t) & tchars);
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}
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#endif /* TERMIO */
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}
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/*
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* Move back to beginning of current line
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*/
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static void
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back_to_col_1()
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{
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#ifdef TERMIO
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# ifdef POSIX
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struct termios tty, tty_normal;
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# else
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struct termio tty, tty_normal;
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# endif /* POSIX */
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#else
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struct sgttyb tty, tty_normal;
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#endif /* TERMIO */
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# ifdef BSDSIGS
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sigmask_t omask = sigblock(sigmask(SIGINT));
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# else
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(void) sighold(SIGINT);
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# endif /* BSDSIGS */
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#ifdef TERMIO
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# ifdef POSIX
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(void) tcgetattr(SHOUT, &tty);
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# else
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(void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty_normal);
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# endif /* POSIX */
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tty_normal = tty;
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tty.c_iflag &= ~INLCR;
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tty.c_oflag &= ~ONLCR;
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# ifdef POSIX
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(void) tcsetattr(SHOUT, TCSANOW, &tty);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
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# endif /* POSIX */
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(void) write(SHOUT, "\r", 1);
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# ifdef POSIX
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(void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal);
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# endif /* POSIX */
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#else
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(void) ioctl(SHIN, TIOCGETP, (ioctl_t) & tty);
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tty_normal = tty;
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tty.sg_flags &= ~CRMOD;
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(void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty);
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(void) write(SHOUT, "\r", 1);
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(void) ioctl(SHIN, TIOCSETN, (ioctl_t) & tty_normal);
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#endif /* TERMIO */
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# ifdef BSDSIGS
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(void) sigsetmask(omask);
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# else
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(void) sigrelse(SIGINT);
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# endif /* BSDISGS */
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}
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/*
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* Push string contents back into tty queue
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*/
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static void
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pushback(string)
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Char *string;
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{
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Char *p;
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char c;
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#ifdef TERMIO
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# ifdef POSIX
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struct termios tty, tty_normal;
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# else
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struct termio tty, tty_normal;
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# endif /* POSIX */
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#else
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struct sgttyb tty, tty_normal;
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#endif /* TERMIO */
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#ifdef BSDSIGS
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sigmask_t omask = sigblock(sigmask(SIGINT));
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#else
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(void) sighold(SIGINT);
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#endif /* BSDSIGS */
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#ifdef TERMIO
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# ifdef POSIX
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(void) tcgetattr(SHOUT, &tty);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
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# endif /* POSIX */
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tty_normal = tty;
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tty.c_lflag &= ~(ECHOKE | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL);
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# ifdef POSIX
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(void) tcsetattr(SHOUT, TCSANOW, &tty);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
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# endif /* POSIX */
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for (p = string; (c = *p) != '\0'; p++)
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(void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c);
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# ifdef POSIX
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(void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty_normal);
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# endif /* POSIX */
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#else
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(void) ioctl(SHOUT, TIOCGETP, (ioctl_t) & tty);
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tty_normal = tty;
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tty.sg_flags &= ~ECHO;
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(void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty);
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for (p = string; c = *p; p++)
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(void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c);
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(void) ioctl(SHOUT, TIOCSETN, (ioctl_t) & tty_normal);
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#endif /* TERMIO */
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# ifdef BSDSIGS
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(void) sigsetmask(omask);
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# else
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(void) sigrelse(SIGINT);
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# endif /* BSDISGS */
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}
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/*
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* Concatenate src onto tail of des.
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* Des is a string whose maximum length is count.
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* Always null terminate.
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*/
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static void
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catn(des, src, count)
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Char *des, *src;
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int count;
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{
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while (--count >= 0 && *des)
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des++;
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while (--count >= 0)
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if ((*des++ = *src++) == 0)
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return;
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*des = '\0';
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}
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/*
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* Like strncpy but always leave room for trailing \0
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* and always null terminate.
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*/
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static void
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copyn(des, src, count)
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Char *des, *src;
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int count;
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{
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while (--count >= 0)
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if ((*des++ = *src++) == 0)
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return;
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*des = '\0';
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}
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static Char
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filetype(dir, file)
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Char *dir, *file;
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{
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Char path[MAXPATHLEN];
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struct stat statb;
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catn(Strcpy(path, dir), file, sizeof(path) / sizeof(Char));
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if (lstat(short2str(path), &statb) == 0) {
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switch (statb.st_mode & S_IFMT) {
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case S_IFDIR:
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return ('/');
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case S_IFLNK:
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if (stat(short2str(path), &statb) == 0 && /* follow it out */
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S_ISDIR(statb.st_mode))
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return ('>');
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else
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return ('@');
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case S_IFSOCK:
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return ('=');
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default:
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if (statb.st_mode & 0111)
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return ('*');
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}
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}
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return (' ');
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}
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static struct winsize win;
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/*
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* Print sorted down columns
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*/
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static void
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print_by_column(dir, items, count)
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Char *dir, *items[];
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int count;
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{
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int i, rows, r, c, maxwidth = 0, columns;
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if (ioctl(SHOUT, TIOCGWINSZ, (ioctl_t) & win) < 0 || win.ws_col == 0)
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win.ws_col = 80;
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for (i = 0; i < count; i++)
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maxwidth = maxwidth > (r = Strlen(items[i])) ? maxwidth : r;
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maxwidth += 2; /* for the file tag and space */
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columns = win.ws_col / maxwidth;
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if (columns == 0)
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columns = 1;
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rows = (count + (columns - 1)) / columns;
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for (r = 0; r < rows; r++) {
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for (c = 0; c < columns; c++) {
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i = c * rows + r;
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if (i < count) {
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int w;
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xprintf("%S", items[i]);
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xputchar(dir ? filetype(dir, items[i]) : ' ');
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if (c < columns - 1) { /* last column? */
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w = Strlen(items[i]) + 1;
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for (; w < maxwidth; w++)
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xputchar(' ');
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}
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}
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}
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xputchar('\r');
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xputchar('\n');
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}
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}
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/*
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* Expand file name with possible tilde usage
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* ~person/mumble
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* expands to
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* home_directory_of_person/mumble
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*/
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static Char *
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tilde(new, old)
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Char *new, *old;
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{
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Char *o, *p;
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struct passwd *pw;
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static Char person[40];
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if (old[0] != '~')
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return (Strcpy(new, old));
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for (p = person, o = &old[1]; *o && *o != '/'; *p++ = *o++);
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*p = '\0';
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if (person[0] == '\0')
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(void) Strcpy(new, varval(STRhome));
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else {
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pw = getpwnam(short2str(person));
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if (pw == NULL)
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return (NULL);
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(void) Strcpy(new, str2short(pw->pw_dir));
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}
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(void) Strcat(new, o);
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return (new);
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}
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/*
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* Cause pending line to be printed
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*/
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static void
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retype()
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{
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#ifdef TERMIO
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# ifdef POSIX
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struct termios tty;
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(void) tcgetattr(SHOUT, &tty);
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# else
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struct termio tty;
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(void) ioctl(SHOUT, TCGETA, (ioctl_t) &tty);
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# endif /* POSIX */
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tty.c_lflag |= PENDIN;
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# ifdef POSIX
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(void) tcsetattr(SHOUT, TCSANOW, &tty);
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# else
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(void) ioctl(SHOUT, TCSETAW, (ioctl_t) &tty);
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# endif /* POSIX */
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#else
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int pending_input = LPENDIN;
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(void) ioctl(SHOUT, TIOCLBIS, (ioctl_t) & pending_input);
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#endif /* TERMIO */
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}
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static void
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beep()
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{
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if (adrof(STRnobeep) == 0)
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#ifdef IS_ASCII
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(void) write(SHOUT, "\007", 1);
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#else
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{
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unsigned char beep_ch = CTL_ESC('\007');
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(void) write(SHOUT, &beep_ch, 1);
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}
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#endif
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}
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/*
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* Erase that silly ^[ and
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* print the recognized part of the string
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*/
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static void
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print_recognized_stuff(recognized_part)
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Char *recognized_part;
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{
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/* An optimized erasing of that silly ^[ */
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(void) putraw('\b');
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(void) putraw('\b');
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switch (Strlen(recognized_part)) {
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case 0: /* erase two Characters: ^[ */
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(void) putraw(' ');
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(void) putraw(' ');
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(void) putraw('\b');
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(void) putraw('\b');
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break;
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case 1: /* overstrike the ^, erase the [ */
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xprintf("%S", recognized_part);
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(void) putraw(' ');
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(void) putraw('\b');
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break;
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default: /* overstrike both Characters ^[ */
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xprintf("%S", recognized_part);
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break;
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}
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flush();
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}
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/*
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* Parse full path in file into 2 parts: directory and file names
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* Should leave final slash (/) at end of dir.
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*/
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static void
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extract_dir_and_name(path, dir, name)
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Char *path, *dir, *name;
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{
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Char *p;
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p = Strrchr(path, '/');
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if (p == NULL) {
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copyn(name, path, MAXNAMLEN);
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dir[0] = '\0';
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}
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else {
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copyn(name, ++p, MAXNAMLEN);
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copyn(dir, path, p - path);
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}
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}
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/* atp vmsposix - I need to remove all the setpwent
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* getpwent endpwent stuff. VMS_POSIX has getpwnam getpwuid
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* and getlogin. This needs fixing. (There is no access to
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* pw->passwd in VMS - a secure system benefit :-| )
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*/
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static Char *
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getitem(dir_fd, looking_for_lognames)
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DIR *dir_fd;
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int looking_for_lognames;
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{
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struct passwd *pw;
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struct dirent *dirp;
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|
|
if (looking_for_lognames) {
|
|
#ifdef _VMS_POSIX
|
|
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);
|
|
}
|
|
|
|
static void
|
|
free_items(items, numitems)
|
|
Char **items;
|
|
size_t numitems;
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < numitems; i++)
|
|
xfree((ptr_t) items[i]);
|
|
xfree((ptr_t) items);
|
|
}
|
|
|
|
#ifdef BSDSIGS
|
|
# define FREE_ITEMS(items, numitems) { \
|
|
sigmask_t omask;\
|
|
\
|
|
omask = sigblock(sigmask(SIGINT));\
|
|
free_items(items, numitems);\
|
|
(void) sigsetmask(omask);\
|
|
}
|
|
#else
|
|
# define FREE_ITEMS(items, numitems) { \
|
|
(void) sighold(SIGINT);\
|
|
free_items(items, numitems);\
|
|
(void) sigrelse(SIGINT);\
|
|
}
|
|
#endif /* BSDSIGS */
|
|
|
|
/*
|
|
* Perform a RECOGNIZE or LIST command on string "word".
|
|
*/
|
|
static int
|
|
tsearch(word, command, max_word_length)
|
|
Char *word;
|
|
int max_word_length;
|
|
COMMAND command;
|
|
{
|
|
DIR *dir_fd;
|
|
int numitems = 0, ignoring = TRUE, nignored = 0;
|
|
int name_length, looking_for_lognames;
|
|
Char tilded_dir[MAXPATHLEN + 1], dir[MAXPATHLEN + 1];
|
|
Char name[MAXNAMLEN + 1], extended_name[MAXNAMLEN + 1];
|
|
Char *item;
|
|
Char **items = NULL;
|
|
size_t maxitems = 0;
|
|
|
|
looking_for_lognames = (*word == '~') && (Strchr(word, '/') == NULL);
|
|
if (looking_for_lognames) {
|
|
#ifndef _VMS_POSIX
|
|
(void) setpwent();
|
|
#endif /*atp vmsposix */
|
|
copyn(name, &word[1], MAXNAMLEN); /* name sans ~ */
|
|
dir_fd = NULL;
|
|
}
|
|
else {
|
|
extract_dir_and_name(word, dir, name);
|
|
if (tilde(tilded_dir, dir) == 0)
|
|
return (0);
|
|
dir_fd = opendir(*tilded_dir ? short2str(tilded_dir) : ".");
|
|
if (dir_fd == NULL)
|
|
return (0);
|
|
}
|
|
|
|
again: /* search for matches */
|
|
name_length = Strlen(name);
|
|
for (numitems = 0;
|
|
(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) {
|
|
if (numitems >= maxitems) {
|
|
maxitems += 1024;
|
|
if (items == NULL)
|
|
items = (Char **) xmalloc(sizeof(*items) * maxitems);
|
|
else
|
|
items = (Char **) xrealloc((ptr_t) items,
|
|
sizeof(*items) * maxitems);
|
|
}
|
|
items[numitems] = (Char *) xmalloc((size_t) (Strlen(item) + 1) *
|
|
sizeof(Char));
|
|
copyn(items[numitems], item, MAXNAMLEN);
|
|
numitems++;
|
|
}
|
|
else { /* RECOGNIZE command */
|
|
if (ignoring && ignored(item))
|
|
nignored++;
|
|
else if (recognize(extended_name,
|
|
item, name_length, ++numitems))
|
|
break;
|
|
}
|
|
}
|
|
if (ignoring && numitems == 0 && nignored > 0) {
|
|
ignoring = FALSE;
|
|
nignored = 0;
|
|
if (looking_for_lognames)
|
|
#ifndef _VMS_POSIX
|
|
(void) setpwent();
|
|
#endif /* atp vmsposix */
|
|
else
|
|
rewinddir(dir_fd);
|
|
goto again;
|
|
}
|
|
|
|
if (looking_for_lognames)
|
|
#ifndef _VMS_POSIX
|
|
(void) endpwent();
|
|
#endif /*atp vmsposix */
|
|
else
|
|
(void) closedir(dir_fd);
|
|
if (numitems == 0)
|
|
return (0);
|
|
if (command == RECOGNIZE) {
|
|
if (looking_for_lognames)
|
|
copyn(word, STRtilde, 1);
|
|
else
|
|
/* put back dir part */
|
|
copyn(word, dir, max_word_length);
|
|
/* add extended name */
|
|
catn(word, extended_name, max_word_length);
|
|
return (numitems);
|
|
}
|
|
else { /* LIST */
|
|
qsort((ptr_t) items, (size_t) numitems, sizeof(items[0]),
|
|
(int (*) __P((const void *, const void *))) compare);
|
|
print_by_column(looking_for_lognames ? NULL : tilded_dir,
|
|
items, numitems);
|
|
if (items != NULL)
|
|
FREE_ITEMS(items, numitems);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int
|
|
compare(p, q)
|
|
const ptr_t p, q;
|
|
{
|
|
#if defined(NLS) && !defined(NOSTRCOLL)
|
|
errno = 0; /* strcoll sets errno, another brain-damage */
|
|
|
|
return (strcoll(*(char **) p, *(char **) q));
|
|
#else
|
|
return (strcmp(*(char **) p, *(char **) q));
|
|
#endif /* NLS && !NOSTRCOLL */
|
|
}
|
|
|
|
/*
|
|
* 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(extended_name, item, name_length, numitems)
|
|
Char *extended_name, *item;
|
|
int name_length, numitems;
|
|
{
|
|
if (numitems == 1) /* 1st match */
|
|
copyn(extended_name, item, MAXNAMLEN);
|
|
else { /* 2nd & subsequent matches */
|
|
Char *x, *ent;
|
|
int 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(check, template)
|
|
Char *check, *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(check, template)
|
|
Char *check, *template;
|
|
{
|
|
Char *c, *t;
|
|
|
|
for (c = check; *c++;);
|
|
for (t = template; *t++;);
|
|
for (;;) {
|
|
if (t == template)
|
|
return 1;
|
|
if (c == check || *--t != *--c)
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
tenex(inputline, inputline_size)
|
|
Char *inputline;
|
|
int inputline_size;
|
|
{
|
|
int numitems, num_read;
|
|
char tinputline[BUFSIZE];
|
|
|
|
|
|
setup_tty(ON);
|
|
|
|
while ((num_read = read(SHIN, tinputline, BUFSIZE)) > 0) {
|
|
int i;
|
|
static Char delims[] = {' ', '\'', '"', '\t', ';', '&', '<',
|
|
'>', '(', ')', '|', '^', '%', '\0'};
|
|
Char *str_end, *word_start, last_Char, should_retype;
|
|
int space_left;
|
|
COMMAND command;
|
|
|
|
for (i = 0; i < num_read; i++)
|
|
inputline[i] = (unsigned char) tinputline[i];
|
|
last_Char = inputline[num_read - 1] & ASCII;
|
|
|
|
if (last_Char == '\n' || 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();
|
|
}
|
|
setup_tty(OFF);
|
|
return (num_read);
|
|
}
|
|
|
|
static int
|
|
ignored(item)
|
|
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 */
|