Initial revision

1 files changed, 91 insertions, 0 deletions

diff --git a/Src/Zle/deltochar.c b/Src/Zle/deltochar.c
new file mode 100644
index 000000000..87f8593b8
--- /dev/null
+++ b/Src/Zle/deltochar.c
@@ -0,0 +1,91 @@
+/*
+ * deltochar.c - ZLE module implementing Emacs' zap-to-char
+ *
+ * This file is part of zsh, the Z shell.
+ *
+ * Copyright (c) 1996-1997 Peter Stephenson
+ * All rights reserved.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and to distribute modified versions of this software for any
+ * purpose, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * In no event shall Peter Stephenson or the Zsh Development Group be liable
+ * to any party for direct, indirect, special, incidental, or consequential
+ * damages arising out of the use of this software and its documentation,
+ * even if Peter Stephenson and the Zsh Development Group have been advised of
+ * the possibility of such damage.
+ *
+ * Peter Stephenson and the Zsh Development Group specifically disclaim any
+ * warranties, including, but not limited to, the implied warranties of
+ * merchantability and fitness for a particular purpose.  The software
+ * provided hereunder is on an "as is" basis, and Peter Stephenson and the
+ * Zsh Development Group have no obligation to provide maintenance,
+ * support, updates, enhancements, or modifications.
+ *
+ */
+
+#include "deltochar.mdh"
+#include "deltochar.pro"
+
+static Widget w_deletetochar;
+
+/**/
+static void
+deltochar(void)
+{
+    int c = getkey(0), dest = cs, ok = 0, n = zmult;
+
+    if (n > 0) {
+	while (n-- && dest != ll) {
+	    while (dest != ll && line[dest] != c)
+		dest++;
+	    if (dest != ll) {
+		dest++;
+		if (!n) {
+		    foredel(dest - cs);
+		    ok++;
+		}
+	    }
+	}
+    } else {
+	/* ignore character cursor is on when scanning backwards */
+	if (dest)
+	    dest--;
+	while (n++ && dest != 0) {
+	    while (dest != 0 && line[dest] != c)
+		dest--;
+	    if (line[dest] == c && !n) {
+		backdel(cs - dest);
+		ok++;
+	    }
+	}
+    }
+    if (!ok)
+	feep();
+}
+
+/**/
+int
+boot_deltochar(Module m)
+{
+    w_deletetochar = addzlefunction("delete-to-char", deltochar, ZLE_KEEPSUFFIX);
+    if (w_deletetochar)
+	return 0;
+    zwarnnam(m->nam, "name clash when adding ZLE function `delete-to-char'",
+	     NULL, 0);
+    return -1;
+}
+
+#ifdef MODULE
+
+/**/
+int
+cleanup_deltochar(Module m)
+{
+    deletezlefunction(w_deletetochar);
+    return 0;
+}
+#endif