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]>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/edit.zig b/src/edit.zig
index a373741c..5e0d20a4 100644
--- a/src/edit.zig
+++ b/src/edit.zig
@@ -148,7 +148,7 @@ pub fn applyPaste(p: *Pardes, bytes: []const u8) void {
             n += 1;
         };
         if (n > 0) insertKey(p, &pane.input, .{ .cp = line[0], .text = line[0..n] });
-        if (normal.selRegexArmed(pane)) |a| if (p.promptTarget(pane)) |t| normal.applySelRegex(p, pane, t, a.pat, a.split);
+        if (normal.selRegexArmed(pane)) |a| if (p.promptTarget(pane)) |t| normal.applySelRegex(p, pane, t, a.pat, a.mode);
         return;
     }
     if (pane.focus == .tag) return pasteInto(p, &pane.tag, bytes);
@@ -355,7 +355,8 @@ pub fn exitInsert(p: *Pardes, t: *Text) void {
     for (rs[0..got.n]) |*r| {
         const from = @min(r.anchor, r.head);
         const to = @max(r.anchor, r.head);
-        r.* = .{ .anchor = from, .head = if (r.head > r.anchor) @max(from, modal.prevGrapheme(text, to)) else to };
+        const head = if (r.head > r.anchor) @max(from, modal.prevGrapheme(text, to)) else to;
+        r.* = .{ .anchor = from, .head = head };
     }
     t.setRanges(text, rs[0..got.n], &.{}, got.pri, expl);
 }