projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 18ae9d6b AS |
1 | /*- |
| 2 | * Copyright (c) 1992, 1993 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| 32 | */ | |
| 33 | ||
| 34 | #ifndef lint | |
| 35 | static char sccsid[] = "@(#)ex_exit.c 8.7 (Berkeley) 12/10/93"; | |
| 36 | #endif /* not lint */ | |
| 37 | ||
| 38 | #include <sys/types.h> | |
| 39 | ||
| 40 | #include "vi.h" | |
| 41 | #include "excmd.h" | |
| 42 | ||
| 43 | /* | |
| 44 | * ex_quit -- :quit[!] | |
| 45 | * Quit. | |
| 46 | */ | |
| 47 | int | |
| 48 | ex_quit(sp, ep, cmdp) | |
| 49 | SCR *sp; | |
| 50 | EXF *ep; | |
| 51 | EXCMDARG *cmdp; | |
| 52 | { | |
| 53 | int force; | |
| 54 | ||
| 55 | force = F_ISSET(cmdp, E_FORCE); | |
| 56 | ||
| 57 | /* Check for modifications. */ | |
| 58 | if (F_ISSET(ep, F_MODIFIED) && ep->refcnt <= 1 && !force) { | |
| 59 | msgq(sp, M_ERR, | |
| 60 | "Modified since last write; write or use ! to override."); | |
| 61 | return (1); | |
| 62 | } | |
| 63 | ||
| 64 | /* | |
| 65 | * !!! | |
| 66 | * Historic practice: quit! or two quit's done in succession | |
| 67 | * (where ZZ counts as a quit) didn't check for other files. | |
| 68 | * | |
| 69 | * Also check for related screens; if they exist, quit, the | |
| 70 | * user will get the message on the last screen. | |
| 71 | */ | |
| 72 | if (!force && sp->ccnt != sp->q_ccnt + 1 && | |
| 73 | ep->refcnt <= 1 && file_unedited(sp) != NULL) { | |
| 74 | sp->q_ccnt = sp->ccnt; | |
| 75 | msgq(sp, M_ERR, | |
| 76 | "More files; use \":n\" to go to the next file, \":q!\" to quit."); | |
| 77 | return (1); | |
| 78 | } | |
| 79 | ||
| 80 | F_SET(sp, force ? S_EXIT_FORCE : S_EXIT); | |
| 81 | return (0); | |
| 82 | } |