PATCH: simple up/down line widgets

[Oliver Kiddle <okiddle@yahoo.co.uk>]

This adds simple up and down line widgets that don't do any history
recall at all. Probably should have done this long ago because
everything is already there so its a tiny change.

I'll probably make these default in visual selection mode because I can't
imagine anyone wanting history to work from there. Personally, I do all
my history stuff from insert mode and will use these for vicmd.

Oliver

diff --git a/Doc/Zsh/zle.yo b/Doc/Zsh/zle.yo
index bf1b315..998bf4a 100644
--- a/Doc/Zsh/zle.yo
+++ b/Doc/Zsh/zle.yo
@@ -1087,6 +1087,10 @@ tindex(vi-beginning-of-line)
 item(tt(vi-beginning-of-line))(
 Move to the beginning of the line, without changing lines.
 )
+tindex(down-line)
+item(tt(down-line) (unbound) (unbound) (unbound))(
+Move down a line in the buffer.
+)
 tindex(end-of-line)
 item(tt(end-of-line) (^E) (unbound) (unbound))(
 Move to the end of the line.  If already at the end
@@ -1179,6 +1183,10 @@ tindex(vi-rev-repeat-find)
 item(tt(vi-rev-repeat-find) (unbound) (,) (unbound))(
 Repeat the last tt(vi-find) command in the opposite direction.
 )
+tindex(up-line)
+item(tt(up-line) (unbound) (unbound) (unbound))(
+Move up a line in the buffer.
+)
 enditem()
 texinode(History Control)(Modifying Text)(Movement)(Zle Widgets)
 subsect(History Control)
diff --git a/Src/Zle/iwidgets.list b/Src/Zle/iwidgets.list
index 39c81e6..2618297 100644
--- a/Src/Zle/iwidgets.list
+++ b/Src/Zle/iwidgets.list
@@ -41,6 +41,7 @@
 "digit-argument", digitargument, ZLE_MENUCMP | ZLE_KEEPSUFFIX | ZLE_LASTCOL | ZLE_NOTCOMMAND
 "down-case-word", downcaseword, 0
 "down-history", downhistory, 0
+"down-line", downline, ZLE_LINEMOVE | ZLE_LASTCOL
 "down-line-or-history", downlineorhistory, ZLE_LINEMOVE | ZLE_LASTCOL
 "down-line-or-search", downlineorsearch, ZLE_LINEMOVE | ZLE_LASTCOL
 "emacs-backward-word", emacsbackwardword, 0
@@ -113,6 +114,7 @@
 "universal-argument", universalargument, ZLE_MENUCMP | ZLE_KEEPSUFFIX | ZLE_LASTCOL | ZLE_NOTCOMMAND
 "up-case-word", upcaseword, 0
 "up-history", uphistory, 0
+"up-line", upline, ZLE_LINEMOVE | ZLE_LASTCOL
 "up-line-or-history", uplineorhistory, ZLE_LINEMOVE | ZLE_LASTCOL
 "up-line-or-search", uplineorsearch, ZLE_LINEMOVE | ZLE_LASTCOL
 "vi-add-eol", viaddeol, 0
diff --git a/Src/Zle/zle_hist.c b/Src/Zle/zle_hist.c
index 44b39d1..bf7b5f4 100644
--- a/Src/Zle/zle_hist.c
+++ b/Src/Zle/zle_hist.c
@@ -227,14 +227,14 @@ uphistory(UNUSED(char **args))
 }
 
 /**/
-static int
-upline(void)
+int
+upline(char **args)
 {
     int n = zmult;
 
     if (n < 0) {
 	zmult = -zmult;
-	n = -downline();
+	n = -downline(args);
 	zmult = -zmult;
 	return n;
     }
@@ -270,7 +270,7 @@ int
 uplineorhistory(char **args)
 {
     int ocs = zlecs;
-    int n = upline();
+    int n = upline(args);
     if (n) {
 	int m = zmult, ret;
 
@@ -300,7 +300,7 @@ int
 uplineorsearch(char **args)
 {
     int ocs = zlecs;
-    int n = upline();
+    int n = upline(args);
     if (n) {
 	int m = zmult, ret;
 
@@ -316,14 +316,14 @@ uplineorsearch(char **args)
 }
 
 /**/
-static int
-downline(void)
+int
+downline(char **args)
 {
     int n = zmult;
 
     if (n < 0) {
 	zmult = -zmult;
-	n = -upline();
+	n = -upline(args);
 	zmult = -zmult;
 	return n;
     }
@@ -358,7 +358,7 @@ int
 downlineorhistory(char **args)
 {
     int ocs = zlecs;
-    int n = downline();
+    int n = downline(args);
     if (n) {
 	int m = zmult, ret;
 
@@ -388,7 +388,7 @@ int
 downlineorsearch(char **args)
 {
     int ocs = zlecs;
-    int n = downline();
+    int n = downline(args);
     if (n) {
 	int m = zmult, ret;