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authorsvn2git <svn2git@FreeBSD.org>1994-07-01 00:00:00 -0800
committersvn2git <svn2git@FreeBSD.org>1994-07-01 00:00:00 -0800
commit5e0e9b99dc3fc0ecd49d929db0d57c784b66f481 (patch)
treee779b5a6edddbb949b7990751b12d6f25304ba86 /usr.bin/vi/vi/v_increment.c
parenta16f65c7d117419bd266c28a1901ef129a337569 (diff)
downloadsrc-releng/1.tar.gz
src-releng/1.zip
Release FreeBSD 1.1.5.1release/1.1.5.1_cvsreleng/1
This commit was manufactured to restore the state of the 1.1.5.1-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.
Diffstat (limited to 'usr.bin/vi/vi/v_increment.c')
-rw-r--r--usr.bin/vi/vi/v_increment.c162
1 files changed, 162 insertions, 0 deletions
diff --git a/usr.bin/vi/vi/v_increment.c b/usr.bin/vi/vi/v_increment.c
new file mode 100644
index 000000000000..aee358922662
--- /dev/null
+++ b/usr.bin/vi/vi/v_increment.c
@@ -0,0 +1,162 @@
+/*-
+ * Copyright (c) 1992, 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[] = "@(#)v_increment.c 8.8 (Berkeley) 3/8/94";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <queue.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 <db.h>
+#include <regex.h>
+
+#include "vi.h"
+#include "vcmd.h"
+
+static char * const fmt[] = {
+#define DEC 0
+ "%ld",
+#define SDEC 1
+ "%+ld",
+#define HEXC 2
+ "%#0.*lX",
+#define HEXL 3
+ "%#0.*lx",
+#define OCTAL 4
+ "%#0.*lo",
+};
+
+/*
+ * v_increment -- [count]#[#+-]
+ * Increment/decrement a keyword number.
+ */
+int
+v_increment(sp, ep, vp)
+ SCR *sp;
+ EXF *ep;
+ VICMDARG *vp;
+{
+ VI_PRIVATE *vip;
+ u_long ulval;
+ long lval;
+ size_t blen, len, nlen;
+ int rval;
+ char *bp, *ntype, *p, nbuf[100];
+
+ vip = VIP(sp);
+
+ /* Do repeat operations. */
+ if (vp->character == '#')
+ vp->character = vip->inc_lastch;
+
+ /* Get new value. */
+ if (F_ISSET(vp, VC_C1SET))
+ vip->inc_lastval = vp->count;
+
+ if (vp->character != '+' && vp->character != '-') {
+ msgq(sp, M_ERR, "usage: %s.", vp->kp->usage);
+ return (1);
+ }
+ vip->inc_lastch = vp->character;
+
+ /* Figure out the resulting type and number. */
+ p = vp->keyword;
+ len = vp->klen;
+ if (len > 1 && p[0] == '0') {
+ if (vp->character == '+') {
+ ulval = strtoul(vp->keyword, NULL, 0);
+ if (ULONG_MAX - ulval < vip->inc_lastval)
+ goto overflow;
+ ulval += vip->inc_lastval;
+ } else {
+ ulval = strtoul(vp->keyword, NULL, 0);
+ if (ulval < vip->inc_lastval)
+ goto underflow;
+ ulval -= vip->inc_lastval;
+ }
+ ntype = fmt[OCTAL];
+ if (len > 2)
+ if (p[1] == 'X')
+ ntype = fmt[HEXC];
+ else if (p[1] == 'x')
+ ntype = fmt[HEXL];
+ nlen = snprintf(nbuf, sizeof(nbuf), ntype, len, ulval);
+ } else {
+ if (vp->character == '+') {
+ lval = strtol(vp->keyword, NULL, 0);
+ if (lval > 0 && LONG_MAX - lval < vip->inc_lastval) {
+overflow: msgq(sp, M_ERR, "Resulting number too large.");
+ return (1);
+ }
+ lval += vip->inc_lastval;
+ } else {
+ lval = strtol(vp->keyword, NULL, 0);
+ if (lval < 0 && -(LONG_MIN - lval) < vip->inc_lastval) {
+underflow: msgq(sp, M_ERR, "Resulting number too small.");
+ return (1);
+ }
+ lval -= vip->inc_lastval;
+ }
+ ntype = lval != 0 &&
+ (*vp->keyword == '+' || *vp->keyword == '-') ?
+ fmt[SDEC] : fmt[DEC];
+ nlen = snprintf(nbuf, sizeof(nbuf), ntype, lval);
+ }
+
+ if ((p = file_gline(sp, ep, vp->m_start.lno, &len)) == NULL) {
+ GETLINE_ERR(sp, vp->m_start.lno);
+ return (1);
+ }
+
+ GET_SPACE_RET(sp, bp, blen, len + nlen);
+ memmove(bp, p, vp->m_start.cno);
+ memmove(bp + vp->m_start.cno, nbuf, nlen);
+ memmove(bp + vp->m_start.cno + nlen,
+ p + vp->m_start.cno + vp->klen, len - vp->m_start.cno - vp->klen);
+ len = len - vp->klen + nlen;
+
+ rval = file_sline(sp, ep, vp->m_start.lno, bp, len);
+ FREE_SPACE(sp, bp, blen);
+ return (rval);
+}