Edit runs acme's file and shell commands: < | > through the session's Shell off the loop (one undo step, a failure changes nothing, its stderr in +Errors, a 9P write answered when done), X and Y over the open text panes, b B D e r f w and the "file" address; checked against sam -d, and the reference's Edit section and Coming from acme row say so

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

1 files changed, 7 insertions, 28 deletions

diff --git a/src/builtins.zig b/src/builtins.zig
index da87ba37..ed6ac467 100644
--- a/src/builtins.zig
+++ b/src/builtins.zig
@@ -555,9 +555,9 @@ fn warnModified(c: Ctx, asking: Pane.Discarding) bool {
 
 /// Which panes a refusal asks about: every one (Exit, Restore), one (Del),
 /// or a column's (Delcol).
-const Asked = union(enum) { all, pane: usize, column: usize };
+pub const Asked = union(enum) { all, pane: usize, column: usize };
 
-fn warnModifiedIn(c: Ctx, asking: Pane.Discarding, which: Asked) bool {
+pub fn warnModifiedIn(c: Ctx, asking: Pane.Discarding, which: Asked) bool {
     // Every pane asked about is an `unsaved <serial> <name>` record, as
     // acme's rowclean names them all (wind.c:511); the refusal a write
     // gets names the one, or counts them, never a list cut short.
@@ -1330,36 +1330,15 @@ pub const Togglettymode = struct {
 };
 
 /// acme's Edit (exec.c `edit`, edit.c): sam's command language over the
-/// pane's body, from a tag, a pane ctl or exec. One undo step; a failure
-/// changes nothing and says why. src/sam_edit.zig has what is left out.
+/// open text panes, from a tag, a pane ctl or exec, starting in the pane's
+/// body. One undo step in each file it changes; a failure changes nothing
+/// and says why. src/edit_cmd.zig runs it; src/sam_edit.zig has what is
+/// left out.
 pub const Edit = struct {
     pub const takes_arg = true;
     pub const requires_arg = true;
     pub fn run(c: Ctx) void {
-        const sam = @import("sam_edit.zig");
-        const ninep_pane = @import("ninep/pane.zig");
-        const f = ninep_pane.fileOf(c.pane) orelse return c.p.reportFailure(c.id, "Edit: only a text pane is edited");
-        const arena = c.p.scratch.allocator();
-        var why: sam.Why = .{};
-        var said: [260]u8 = undefined;
-        const res = sam.run(arena, f.content, ninep_pane.dotOf(c.pane), f.path, c.arg orelse "", &why) catch |err| switch (err) {
-            error.Edit => return c.p.reportFailure(c.id, std.fmt.bufPrint(&said, "Edit: {s}", .{why.text()}) catch "Edit: failed"),
-            error.OutOfMemory => return c.p.reportError(c.id, "Edit", err),
-        };
-        if (res.undo != 0) {
-            for (0..@abs(res.undo)) |_| if (res.undo > 0) panes.File.undo(c.p, c.pane) else panes.File.redo(c.p, c.pane);
-            return;
-        }
-        if (res.ops.len > 0) {
-            const new = sam.apply(c.p.gpa, f.content, res.ops) catch |err| return c.p.reportError(c.id, "Edit", err);
-            // `s/a/a/` changes nothing: no undo step, no new revision.
-            if (std.mem.eql(u8, new, f.content)) c.p.gpa.free(new) else {
-                panes.File.pushUndo(c.p, c.pane);
-                panes.File.setContent(c.p, f, new);
-            }
-        }
-        ninep_pane.setDot(c.pane, sam.moveDot(res.dot, res.ops));
-        if (res.printed.len > 0) _ = ninep_pane.appendErrors(c.p, c.id, res.printed);
+        @import("edit_cmd.zig").run(c.p, c.id, c.arg orelse "");
     }
 };