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PATCH: default vi-mode key bindings

I would like to suggest the following changes to the default key
bindings in vi mode.

The undo bindings are a change to existing behaviour.
I think it is better that someone has to explicitly select the
vi-compatible single level undo/redo toggling and that the default is
multi-level undo with redo on Ctrl-R. Ctrl-R is currently redisplay.

The other keys are all vim bindings starting with a g prefix. gg is very
common and well known. I've bound it to beginning-of-buffer-or-history.
The beginning of history is really fairly useless but it probably needs
to be that for consistency with other keys: I only care about it going
to that start of the buffer. I'm slightly inclined to add a goto-line
to go to a line in the buffer based on numeric argument. Note that G
is bound to vi-fetch-history. That does go to the end of a buffer but
not if you're on a previous history line. I use a combination of it
with end-of-buffer-or-history in a custom widget. These should all be
line-based moves within a vi buffer so the patch also sets those flags.

Next is ga to what-cursor-position. ^G probably sooner comes to mind for
that purpose but that's currently list-expand. ga in vim gives you the
ASCII code of the character under the cursor, similarly to zsh's

g~ is swap case (like ~) but with a movement command. I have vim's gu/gU
implemented as shell functions.

Finally, there are ge and gE for moving back to the end of the previous

Any thoughts or other suggestions?


diff --git a/Src/Zle/iwidgets.list b/Src/Zle/iwidgets.list
index 1a664e5..b3d1c92 100644
--- a/Src/Zle/iwidgets.list
+++ b/Src/Zle/iwidgets.list
@@ -24,7 +24,7 @@
 "backward-kill-word", backwardkillword, ZLE_KILL | ZLE_KEEPSUFFIX
 "backward-word", backwardword, 0
 "beep", handlefeep, 0
-"beginning-of-buffer-or-history", beginningofbufferorhistory, 0
+"beginning-of-buffer-or-history", beginningofbufferorhistory, ZLE_LINEMOVE
 "beginning-of-history", beginningofhistory, 0
 "beginning-of-line", beginningofline, 0
 "beginning-of-line-hist", beginningoflinehist, 0
@@ -46,7 +46,7 @@
 "down-line-or-search", downlineorsearch, ZLE_LINEMOVE | ZLE_LASTCOL
 "emacs-backward-word", emacsbackwardword, 0
 "emacs-forward-word", emacsforwardword, 0
-"end-of-buffer-or-history", endofbufferorhistory, 0
+"end-of-buffer-or-history", endofbufferorhistory, ZLE_LINEMOVE
 "end-of-history", endofhistory, 0
 "end-of-line", endofline, 0
 "end-of-line-hist", endoflinehist, 0
@@ -143,7 +143,7 @@
 "vi-digit-or-beginning-of-line", vidigitorbeginningofline, 0
 "vi-down-line-or-history", vidownlineorhistory, ZLE_LINEMOVE
 "vi-end-of-line", viendofline, ZLE_LASTCOL
-"vi-fetch-history", vifetchhistory, 0
+"vi-fetch-history", vifetchhistory, ZLE_LINEMOVE
 "vi-find-next-char", vifindnextchar, 0
 "vi-find-next-char-skip", vifindnextcharskip, 0
 "vi-find-prev-char", vifindprevchar, 0
diff --git a/Src/Zle/zle_bindings.c b/Src/Zle/zle_bindings.c
index 50a2955..e3337d0 100644
--- a/Src/Zle/zle_bindings.c
+++ b/Src/Zle/zle_bindings.c
@@ -308,7 +308,7 @@ int vicmdbind[128] = {
     /* ^O */ z_undefinedkey,
     /* ^P */ z_uphistory,
     /* ^Q */ z_undefinedkey,
-    /* ^R */ z_redisplay,
+    /* ^R */ z_redo,
     /* ^S */ z_undefinedkey,
     /* ^T */ z_undefinedkey,
     /* ^U */ z_undefinedkey,
@@ -407,7 +407,7 @@ int vicmdbind[128] = {
     /* r */ z_vireplacechars,
     /* s */ z_visubstitute,
     /* t */ z_vifindnextcharskip,
-    /* u */ z_viundochange,
+    /* u */ z_undo,
     /* v */ z_visualmode,
     /* w */ z_viforwardword,
     /* x */ z_videletechar,
diff --git a/Src/Zle/zle_keymap.c b/Src/Zle/zle_keymap.c
index 30d25eb..6957e9f 100644
--- a/Src/Zle/zle_keymap.c
+++ b/Src/Zle/zle_keymap.c
@@ -1357,6 +1357,13 @@ default_bindings(void)
     bindkey(vismap, "x", refthingy(t_videlete), NULL);
     bindkey(vismap, "~", refthingy(t_vioperswapcase), NULL);
+    /* vi mode: some common vim bindings */
+    bindkey(amap, "ga", refthingy(t_whatcursorposition), NULL);
+    bindkey(amap, "ge", refthingy(t_vibackwardwordend), NULL);
+    bindkey(amap, "gE", refthingy(t_vibackwardblankwordend), NULL);
+    bindkey(amap, "gg", refthingy(t_beginningofbufferorhistory), NULL);
+    bindkey(amap, "g~", refthingy(t_vioperswapcase), NULL);
     /* emacs mode: arrow keys */ 
     add_cursor_key(emap, TCUPCURSOR, t_uplineorhistory, 'A');
     add_cursor_key(emap, TCDOWNCURSOR, t_downlineorhistory, 'B');

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