diff options
Diffstat (limited to 'usr.bin/vi/nex/ex_exit.c')
| -rw-r--r-- | usr.bin/vi/nex/ex_exit.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/usr.bin/vi/nex/ex_exit.c b/usr.bin/vi/nex/ex_exit.c new file mode 100644 index 000000000000..b0f929a5bbe3 --- /dev/null +++ b/usr.bin/vi/nex/ex_exit.c @@ -0,0 +1,82 @@ +/*- + * Copyright (c) 1992, 1993 + * 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_exit.c 8.7 (Berkeley) 12/10/93"; +#endif /* not lint */ + +#include <sys/types.h> + +#include "vi.h" +#include "excmd.h" + +/* + * ex_quit -- :quit[!] + * Quit. + */ +int +ex_quit(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + int force; + + force = F_ISSET(cmdp, E_FORCE); + + /* Check for modifications. */ + if (F_ISSET(ep, F_MODIFIED) && ep->refcnt <= 1 && !force) { + msgq(sp, M_ERR, + "Modified since last write; write or use ! to override."); + return (1); + } + + /* + * !!! + * Historic practice: quit! or two quit's done in succession + * (where ZZ counts as a quit) didn't check for other files. + * + * Also check for related screens; if they exist, quit, the + * user will get the message on the last screen. + */ + if (!force && sp->ccnt != sp->q_ccnt + 1 && + ep->refcnt <= 1 && file_unedited(sp) != NULL) { + sp->q_ccnt = sp->ccnt; + msgq(sp, M_ERR, + "More files; use \":n\" to go to the next file, \":q!\" to quit."); + return (1); + } + + F_SET(sp, force ? S_EXIT_FORCE : S_EXIT); + return (0); +} |