g. goes to where the last edit ended

helix goto_last_modification: every range moves to the end of the last
change (the start of a deletion, the end of an insertion), extending in
select mode. The position is kept on the Text in surface rows, set where
setEditText hands a body its new text, so a terminal's typed text has one
too and moves with its scrollback.

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

2 files changed, 10 insertions, 0 deletions

diff --git a/test/hxcases/cases.jsonl b/test/hxcases/cases.jsonl
index 8a8f8a94..03b20ff5 100644
--- a/test/hxcases/cases.jsonl
+++ b/test/hxcases/cases.jsonl
@@ -441,6 +441,11 @@
 {"name": "ensure-forward", "pane": "file", "text": "ab cd\n", "keys": "%s\\w+<ret><A-;><A-:>"}
 {"name": "ensure-forward-one", "pane": "file", "text": "abc\n", "keys": "vll<A-;><A-:>"}
 {"name": "node-keys-plain-text", "pane": "file", "text": "ab cd\n", "keys": "w<A-o><A-i><A-p><A-right><A-a><A-I><A-e><A-b>"}
+{"name": "goto-last-mod", "pane": "file", "text": "ab\ncd\nef\n", "keys": "jliXY<esc>gg"}
+{"name": "goto-last-mod-go", "pane": "file", "text": "ab\ncd\nef\n", "keys": "jliXY<esc>ggg."}
+{"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": "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 f1df5c0a..8e642073 100644
--- a/test/hxcases/goldens.jsonl
+++ b/test/hxcases/goldens.jsonl
@@ -441,6 +441,11 @@
 {"name":"ensure-forward","text":"ab cd\n","mode":"normal","cursor":{"row":0,"col":1},"anchor":{"row":0,"col":0},"sels":[{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":0}},{"cursor":{"row":0,"col":4},"anchor":{"row":0,"col":3}}],"primary":0}
 {"name":"ensure-forward-one","text":"abc\n","mode":"select","cursor":{"row":0,"col":2},"anchor":{"row":0,"col":0}}
 {"name":"node-keys-plain-text","text":"ab cd\n","mode":"normal","cursor":{"row":0,"col":2},"anchor":{"row":0,"col":0}}
+{"name":"goto-last-mod","text":"ab\ncXYd\nef\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}}
+{"name":"goto-last-mod-go","text":"ab\ncXYd\nef\n","mode":"normal","cursor":{"row":1,"col":3},"anchor":{"row":1,"col":3}}
+{"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":"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}