1 files changed, 126 insertions, 0 deletions
diff --git a/contrib/nvi/vi/v_init.c b/contrib/nvi/vi/v_init.c
new file mode 100644
index 0000000..ee58de3
--- /dev/null
+++ b/contrib/nvi/vi/v_init.c
@@ -0,0 +1,126 @@
+/*-
+ * 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[] = "@(#)v_init.c	10.8 (Berkeley) 3/30/96";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/queue.h>
+#include <sys/time.h>
+
+#include <bitstring.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../common/common.h"
+#include "vi.h"
+
+/*
+ * v_screen_copy --
+ *	Copy vi screen.
+ *
+ * PUBLIC: int v_screen_copy __P((SCR *, SCR *));
+ */
+int
+v_screen_copy(orig, sp)
+	SCR *orig, *sp;
+{
+	VI_PRIVATE *ovip, *nvip;
+
+	/* Create the private vi structure. */
+	CALLOC_RET(orig, nvip, VI_PRIVATE *, 1, sizeof(VI_PRIVATE));
+	sp->vi_private = nvip;
+
+	/* Invalidate the line size cache. */
+	VI_SCR_CFLUSH(nvip);
+
+	if (orig == NULL) {
+		nvip->csearchdir = CNOTSET;
+	} else {
+		ovip = VIP(orig);
+
+		/* User can replay the last input, but nothing else. */
+		if (ovip->rep_len != 0) {
+			MALLOC_RET(orig, nvip->rep, EVENT *, ovip->rep_len);
+			memmove(nvip->rep, ovip->rep, ovip->rep_len);
+			nvip->rep_len = ovip->rep_len;
+		}
+
+		/* Copy the paragraph/section information. */
+		if (ovip->ps != NULL && (nvip->ps =
+		    v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
+			return (1);
+
+		nvip->lastckey = ovip->lastckey;
+		nvip->csearchdir = ovip->csearchdir;
+
+		nvip->srows = ovip->srows;
+	}
+	return (0);
+}
+
+/*
+ * v_screen_end --
+ *	End a vi screen.
+ *
+ * PUBLIC: int v_screen_end __P((SCR *));
+ */
+int
+v_screen_end(sp)
+	SCR *sp;
+{
+	VI_PRIVATE *vip;
+
+	if ((vip = VIP(sp)) == NULL)
+		return (0);
+	if (vip->keyw != NULL)
+		free(vip->keyw);
+	if (vip->rep != NULL)
+		free(vip->rep);
+	if (vip->ps != NULL)
+		free(vip->ps);
+
+	if (HMAP != NULL)
+		free(HMAP);
+
+	free(vip);
+	sp->vi_private = NULL;
+
+	return (0);
+}
+
+/*
+ * v_optchange --
+ *	Handle change of options for vi.
+ *
+ * PUBLIC: int v_optchange __P((SCR *, int, char *, u_long *));
+ */
+int
+v_optchange(sp, offset, str, valp)
+	SCR *sp;
+	int offset;
+	char *str;
+	u_long *valp;
+{
+	switch (offset) {
+	case O_PARAGRAPHS:
+		return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
+	case O_SECTIONS:
+		return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
+	case O_WINDOW:
+		return (vs_crel(sp, *valp));
+	}
+	return (0);
+}