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author | peter <peter@FreeBSD.org> | 2013-08-11 08:38:10 +0000 |
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committer | peter <peter@FreeBSD.org> | 2013-08-11 08:38:10 +0000 |
commit | 75700a8c067d4d910e2017f0aa29cbbca644f9cc (patch) | |
tree | fcfc8dee7b416cacdea763f18f34e0930234186a /contrib/nvi/ex/ex_z.c | |
parent | 3102470d94db36e49a2262542f69cc4219ae1aee (diff) | |
download | FreeBSD-src-75700a8c067d4d910e2017f0aa29cbbca644f9cc.zip FreeBSD-src-75700a8c067d4d910e2017f0aa29cbbca644f9cc.tar.gz |
Post-cvs2svn flatten pass.
Diffstat (limited to 'contrib/nvi/ex/ex_z.c')
-rw-r--r-- | contrib/nvi/ex/ex_z.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/contrib/nvi/ex/ex_z.c b/contrib/nvi/ex/ex_z.c deleted file mode 100644 index 41b72ad..0000000 --- a/contrib/nvi/ex/ex_z.c +++ /dev/null @@ -1,150 +0,0 @@ -/*- - * Copyright (c) 1993, 1994 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1993, 1994, 1995, 1996 - * Keith Bostic. All rights reserved. - * - * See the LICENSE file for redistribution information. - */ - -#include "config.h" - -#ifndef lint -static const char sccsid[] = "@(#)ex_z.c 10.10 (Berkeley) 3/6/96"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/queue.h> - -#include <bitstring.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "../common/common.h" - -/* - * ex_z -- :[line] z [^-.+=] [count] [flags] - * Adjust window. - * - * PUBLIC: int ex_z __P((SCR *, EXCMD *)); - */ -int -ex_z(sp, cmdp) - SCR *sp; - EXCMD *cmdp; -{ - MARK abs; - recno_t cnt, equals, lno; - int eofcheck; - - NEEDFILE(sp, cmdp); - - /* - * !!! - * 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 (FL_ISSET(cmdp->iflags, E_C_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 (FL_ISSET(cmdp->iflags, - E_C_CARAT | E_C_DASH | E_C_DOT | E_C_EQUAL | E_C_PLUS)) { - case E_C_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_C_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_C_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, ABSMARK1, &abs, 1); - break; - case E_C_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, cmdp)) - return (1); - (void)ex_puts(sp, "----------------------------------------\n"); - cmdp->addr2.lno = cmdp->addr1.lno = equals = lno; - if (ex_pr(sp, cmdp)) - return (1); - (void)ex_puts(sp, "----------------------------------------\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_ADDR_DEF)) - ++lno; - /* FALLTHROUGH */ - case E_C_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 (db_last(sp, &lno)) - return (1); - if (cmdp->addr2.lno > lno) - cmdp->addr2.lno = lno; - } - - if (ex_pr(sp, cmdp)) - return (1); - if (equals) - sp->lno = equals; - return (0); -} |