Alt-u and Alt-U undo and redo

helix's earlier/later walk its history tree by time; pardes's history is a
line, where earlier and later are undo and redo, so the keys are aliases.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

2 files changed, 4 insertions, 0 deletions

diff --git a/test/hxcases/cases.jsonl b/test/hxcases/cases.jsonl
index 03b20ff5..f23a8b2f 100644
--- a/test/hxcases/cases.jsonl
+++ b/test/hxcases/cases.jsonl
@@ -446,6 +446,8 @@
 {"name": "goto-last-mod-delete", "pane": "file", "text": "abc\ndef\n", "keys": "jlxdgg"}
 {"name": "goto-last-mod-delete-go", "pane": "file", "text": "abc\ndef\n", "keys": "jldggg."}
 {"name": "goto-last-mod-select", "pane": "file", "text": "ab\ncd\nef\n", "keys": "jjiX<esc>ggvg."}
+{"name": "alt-u-undo", "pane": "file", "text": "ab\n", "keys": "iX<esc><A-u>"}
+{"name": "alt-U-redo", "pane": "file", "text": "ab\n", "keys": "iX<esc>u<A-U>"}
 {"name": "msel-align-basic", "pane": "file", "text": "a=1\nbbb=2\n", "keys": "%s=<ret>&"}
 {"name": "msel-align-columns", "pane": "file", "text": "a,b,c\nccc,d,e\n", "keys": "%s,<ret>&"}
 {"name": "msel-align-uneven", "pane": "file", "text": "a,b\nccc,d,eee,f\n", "keys": "%s,<ret>&"}
diff --git a/test/hxcases/goldens.jsonl b/test/hxcases/goldens.jsonl
index 8e642073..4c565b53 100644
--- a/test/hxcases/goldens.jsonl
+++ b/test/hxcases/goldens.jsonl
@@ -446,6 +446,8 @@
 {"name":"goto-last-mod-delete","text":"abc\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}}
 {"name":"goto-last-mod-delete-go","text":"abc\ndf\n","mode":"normal","cursor":{"row":1,"col":1},"anchor":{"row":1,"col":1}}
 {"name":"goto-last-mod-select","text":"ab\ncd\nXef\n","mode":"select","cursor":{"row":2,"col":1},"anchor":{"row":0,"col":0}}
+{"name":"alt-u-undo","text":"ab\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}}
+{"name":"alt-U-redo","text":"Xab\n","mode":"normal","cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}}
 {"name":"msel-align-basic","text":"a  =1\nbbb=2\n","mode":"normal","cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3},"sels":[{"cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3}},{"cursor":{"row":1,"col":3},"anchor":{"row":1,"col":3}}],"primary":0}
 {"name":"msel-align-columns","text":"a  ,b,c\nccc,d,e\n","mode":"normal","cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3},"sels":[{"cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3}},{"cursor":{"row":0,"col":5},"anchor":{"row":0,"col":5}},{"cursor":{"row":1,"col":3},"anchor":{"row":1,"col":3}},{"cursor":{"row":1,"col":5},"anchor":{"row":1,"col":5}}],"primary":0}
 {"name":"msel-align-uneven","text":"a  ,b\nccc,d,eee,f\n","mode":"normal","cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3},"sels":[{"cursor":{"row":0,"col":3},"anchor":{"row":0,"col":3}},{"cursor":{"row":1,"col":3},"anchor":{"row":1,"col":3}},{"cursor":{"row":1,"col":5},"anchor":{"row":1,"col":5}},{"cursor":{"row":1,"col":9},"anchor":{"row":1,"col":9}}],"primary":0}