K and Alt-K keep or drop the ranges a regex matches in; Alt-: turns every range forward

K and Alt-K share the s/S prompt, which now carries a mode rather than a
split flag: a range stays when a match starts inside it (K) or when none does
(Alt-K), the primary becomes the first, and keeping none leaves the selection
as it was (helix keep_or_remove_matches). Alt-: is ensure_selections_forward.

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

2 files changed, 16 insertions, 0 deletions

diff --git a/test/hxcases/cases.jsonl b/test/hxcases/cases.jsonl
index 7aeb12e8..43cbbf11 100644
--- a/test/hxcases/cases.jsonl
+++ b/test/hxcases/cases.jsonl
@@ -432,6 +432,14 @@
 {"name": "msel-rotate-contents-lines", "pane": "file", "text": "aa\nbbb\n", "keys": "%<A-s><A-)>"}
 {"name": "sel-many-ranges", "pane": "file", "text": "w w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\n", "keys": "%sw<ret>"}
 {"name": "sel-many-ranges-edit", "pane": "file", "text": "w w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\nw w w w w w w w w w w w w w w w w w w w\n", "keys": "%sw<ret>cxy<esc>"}
+{"name": "keep-regex", "pane": "file", "text": "foo bar baz\n", "keys": "%s\\w+<ret>Kba<ret>"}
+{"name": "remove-regex", "pane": "file", "text": "foo bar baz\n", "keys": "%s\\w+<ret><A-K>ba<ret>"}
+{"name": "keep-regex-none", "pane": "file", "text": "foo bar\n", "keys": "%s\\w+<ret>Kzz<ret>"}
+{"name": "keep-regex-primary", "pane": "file", "text": "a1 b2 a3\n", "keys": "%s\\w+<ret>))Ka<ret>"}
+{"name": "keep-regex-esc", "pane": "file", "text": "foo bar\n", "keys": "%s\\w+<ret>Kfo<esc>"}
+{"name": "keep-regex-lines", "pane": "file", "text": "foo\nbar\nbaz\n", "keys": "%<A-s>K^b<ret>"}
+{"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": "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 b8221c4c..9839335a 100644
--- a/test/hxcases/goldens.jsonl
+++ b/test/hxcases/goldens.jsonl
@@ -432,6 +432,14 @@
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