1 files changed, 65 insertions, 0 deletions
diff --git a/contrib/nvi/ex/ex_delete.c b/contrib/nvi/ex/ex_delete.c
new file mode 100644
index 0000000..58734bb
--- /dev/null
+++ b/contrib/nvi/ex/ex_delete.c
@@ -0,0 +1,65 @@
+/*-
+ * Copyright (c) 1992, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ * Copyright (c) 1992, 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_delete.c	10.9 (Berkeley) 10/23/96";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/queue.h>
+
+#include <bitstring.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include "../common/common.h"
+
+/*
+ * ex_delete: [line [,line]] d[elete] [buffer] [count] [flags]
+ *
+ *	Delete lines from the file.
+ *
+ * PUBLIC: int ex_delete __P((SCR *, EXCMD *));
+ */
+int
+ex_delete(sp, cmdp)
+	SCR *sp;
+	EXCMD *cmdp;
+{
+	recno_t lno;
+
+	NEEDFILE(sp, cmdp);
+
+	/*
+	 * !!!
+	 * Historically, lines deleted in ex were not placed in the numeric
+	 * buffers.  We follow historic practice so that we don't overwrite
+	 * vi buffers accidentally.
+	 */
+	if (cut(sp,
+	    FL_ISSET(cmdp->iflags, E_C_BUFFER) ? &cmdp->buffer : NULL,
+	    &cmdp->addr1, &cmdp->addr2, CUT_LINEMODE))
+		return (1);
+
+	/* Delete the lines. */
+	if (del(sp, &cmdp->addr1, &cmdp->addr2, 1))
+		return (1);
+
+	/* Set the cursor to the line after the last line deleted. */
+	sp->lno = cmdp->addr1.lno;
+
+	/* Or the last line in the file if deleted to the end of the file. */
+	if (db_last(sp, &lno))
+		return (1);
+	if (sp->lno > lno)
+		sp->lno = lno;
+	return (0);
+}