diff options
Diffstat (limited to 'usr.bin/vi/ex/ex_z.c')
| -rw-r--r-- | usr.bin/vi/ex/ex_z.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/usr.bin/vi/ex/ex_z.c b/usr.bin/vi/ex/ex_z.c deleted file mode 100644 index d130646..0000000 --- a/usr.bin/vi/ex/ex_z.c +++ /dev/null @@ -1,180 +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_z.c 8.8 (Berkeley) 8/17/94"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/queue.h> -#include <sys/time.h> - -#include <bitstring.h> -#include <limits.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <termios.h> - -#include "compat.h" -#include <db.h> -#include <regex.h> - -#include "vi.h" -#include "excmd.h" - -/* - * ex_z -- :[line] z [^-.+=] [count] [flags] - * - * Adjust window. - */ -int -ex_z(sp, ep, cmdp) - SCR *sp; - EXF *ep; - EXCMDARG *cmdp; -{ - MARK abs; - recno_t cnt, equals, lno; - int eofcheck; - - /* - * !!! - * If no count specified, use either two times the size of the - * scrolling region, or the size of the window option. POSIX - * 1003.2 claims that the latter is correct, but historic ex/vi - * documentation and practice appear to use the scrolling region. - * I'm using the window size as it means that the entire screen - * is used instead of losing a line to roundoff. Note, we drop - * a line from the cnt if using the window size to leave room for - * the next ex prompt. - */ - if (F_ISSET(cmdp, E_COUNT)) - cnt = cmdp->count; - else -#ifdef HISTORIC_PRACTICE - cnt = O_VAL(sp, O_SCROLL) * 2; -#else - cnt = O_VAL(sp, O_WINDOW) - 1; -#endif - - equals = 0; - eofcheck = 0; - lno = cmdp->addr1.lno; - - switch (F_ISSET(cmdp, - E_F_CARAT | E_F_DASH | E_F_DOT | E_F_EQUAL | E_F_PLUS)) { - case E_F_CARAT: /* Display cnt * 2 before the line. */ - eofcheck = 1; - if (lno > cnt * 2) - cmdp->addr1.lno = (lno - cnt * 2) + 1; - else - cmdp->addr1.lno = 1; - cmdp->addr2.lno = (cmdp->addr1.lno + cnt) - 1; - break; - case E_F_DASH: /* Line goes at the bottom of the screen. */ - cmdp->addr1.lno = lno > cnt ? (lno - cnt) + 1 : 1; - cmdp->addr2.lno = lno; - break; - case E_F_DOT: /* Line goes in the middle of the screen. */ - /* - * !!! - * Historically, the "middleness" of the line overrode the - * count, so that "3z.19" or "3z.20" would display the first - * 12 lines of the file, i.e. (N - 1) / 2 lines before and - * after the specified line. - */ - eofcheck = 1; - cnt = (cnt - 1) / 2; - cmdp->addr1.lno = lno > cnt ? lno - cnt : 1; - cmdp->addr2.lno = lno + cnt; - - /* - * !!! - * Historically, z. set the absolute cursor mark. - */ - abs.lno = sp->lno; - abs.cno = sp->cno; - (void)mark_set(sp, ep, ABSMARK1, &abs, 1); - break; - case E_F_EQUAL: /* Center with hyphens. */ - /* - * !!! - * Strangeness. The '=' flag is like the '.' flag (see the - * above comment, it applies here as well) but with a special - * little hack. Print out lines of hyphens before and after - * the specified line. Additionally, the cursor remains set - * on that line. - */ - eofcheck = 1; - cnt = (cnt - 1) / 2; - cmdp->addr1.lno = lno > cnt ? lno - cnt : 1; - cmdp->addr2.lno = lno - 1; - if (ex_pr(sp, ep, cmdp)) - return (1); - (void)ex_printf(EXCOOKIE, - "%s", "----------------------------------------\n"); - cmdp->addr2.lno = cmdp->addr1.lno = equals = lno; - if (ex_pr(sp, ep, cmdp)) - return (1); - (void)ex_printf(EXCOOKIE, - "%s", "----------------------------------------\n"); - cmdp->addr1.lno = lno + 1; - cmdp->addr2.lno = (lno + cnt) - 1; - break; - default: - /* If no line specified, move to the next one. */ - if (F_ISSET(cmdp, E_ADDRDEF)) - ++lno; - /* FALLTHROUGH */ - case E_F_PLUS: /* Line goes at the top of the screen. */ - eofcheck = 1; - cmdp->addr1.lno = lno; - cmdp->addr2.lno = (lno + cnt) - 1; - break; - } - - if (eofcheck) { - if (file_lline(sp, ep, &lno)) - return (1); - if (cmdp->addr2.lno > lno) - cmdp->addr2.lno = lno; - } - - if (ex_pr(sp, ep, cmdp)) - return (1); - if (equals) - sp->lno = equals; - return (0); -} |
