diff options
Diffstat (limited to 'usr.bin/vi/ex/ex_util.c')
| -rw-r--r-- | usr.bin/vi/ex/ex_util.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/usr.bin/vi/ex/ex_util.c b/usr.bin/vi/ex/ex_util.c deleted file mode 100644 index 67c1039..0000000 --- a/usr.bin/vi/ex/ex_util.c +++ /dev/null @@ -1,189 +0,0 @@ -/*- - * Copyright (c) 1993, 1994 - * 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. - */ - -#ifndef lint -static char sccsid[] = "@(#)ex_util.c 8.14 (Berkeley) 8/17/94"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/queue.h> -#include <sys/stat.h> -#include <sys/time.h> - -#include <bitstring.h> -#include <errno.h> -#include <limits.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <termios.h> -#include <unistd.h> - -#include "compat.h" -#include <db.h> -#include <regex.h> - -#include "vi.h" -#include "excmd.h" - -/* - * ex_getline -- - * Return a line from the terminal. - */ -int -ex_getline(sp, fp, lenp) - SCR *sp; - FILE *fp; - size_t *lenp; -{ - EX_PRIVATE *exp; - size_t off; - int ch; - char *p; - - exp = EXP(sp); - for (errno = 0, off = 0, p = exp->ibp;;) { - if (off >= exp->ibp_len) { - BINC_RET(sp, exp->ibp, exp->ibp_len, off + 1); - p = exp->ibp + off; - } - if ((ch = getc(fp)) == EOF && !feof(fp)) { - if (errno == EINTR) { - errno = 0; - clearerr(fp); - continue; - } - return (1); - } - if (ch == EOF || ch == '\n') { - if (ch == EOF && !off) - return (1); - *lenp = off; - return (0); - } - *p++ = ch; - ++off; - } - /* NOTREACHED */ -} - -/* - * ex_sleave -- - * Save the terminal/signal state, screen modification time. - * Specific to ex/filter.c and ex/ex_shell.c. - */ -int -ex_sleave(sp) - SCR *sp; -{ - struct stat sb; - EX_PRIVATE *exp; - - /* Ignore sessions not using tty's. */ - if (!F_ISSET(sp->gp, G_STDIN_TTY)) - return (1); - - exp = EXP(sp); - if (tcgetattr(STDIN_FILENO, &exp->leave_term)) { - msgq(sp, M_SYSERR, "tcgetattr"); - return (1); - } - if (tcsetattr(STDIN_FILENO, - TCSANOW | TCSASOFT, &sp->gp->original_termios)) { - msgq(sp, M_SYSERR, "tcsetattr"); - return (1); - } - /* - * The process may write to the terminal. Save the access time - * (read) and modification time (write) of the tty; if they have - * changed when we restore the modes, will have to refresh the - * screen. - */ - if (fstat(STDIN_FILENO, &sb)) { - msgq(sp, M_SYSERR, "stat: stdin"); - exp->leave_atime = exp->leave_mtime = 0; - } else { - exp->leave_atime = sb.st_atime; - exp->leave_mtime = sb.st_mtime; - } - return (0); -} - -/* - * ex_rleave -- - * Return the terminal/signal state, not screen modification time. - * Specific to ex/filter.c and ex/ex_shell.c. - */ -void -ex_rleave(sp) - SCR *sp; -{ - EX_PRIVATE *exp; - struct stat sb; - - exp = EXP(sp); - - /* Restore the terminal modes. */ - if (tcsetattr(STDIN_FILENO, TCSANOW | TCSASOFT, &exp->leave_term)) - msgq(sp, M_SYSERR, "tcsetattr"); - - /* If the terminal was used, refresh the screen. */ - if (fstat(STDIN_FILENO, &sb) || exp->leave_atime == 0 || - exp->leave_atime != sb.st_atime || exp->leave_mtime != sb.st_mtime) - F_SET(sp, S_REFRESH); -} - -/* - * ex_ncheck -- - * Check for more files to edit. - */ -int -ex_ncheck(sp, force) - SCR *sp; - int force; -{ - /* - * !!! - * Historic practice: quit! or two quit's done in succession - * (where ZZ counts as a quit) didn't check for other files. - */ - if (!force && sp->ccnt != sp->q_ccnt + 1 && - sp->cargv != NULL && sp->cargv[1] != NULL) { - sp->q_ccnt = sp->ccnt; - msgq(sp, M_ERR, - "More files to edit; use n[ext] to go to the next file, q[uit]! to quit"); - return (1); - } - return (0); -} |
