1 files changed, 9 insertions, 0 deletions
diff --git a/src/dump.zig b/src/dump.zig
index 93bf08cc..ff46205f 100644
--- a/src/dump.zig
+++ b/src/dump.zig
@@ -109,6 +109,7 @@ pub const Pane = struct {
     cols: u16 = 0,
     rows: u16 = 0,
     vweight: f32 = 1,
+    collapsed: bool = false,
     /// Exact editable tail when the user touched it. Null retains the live
     /// default; a present empty slice deliberately restores an empty tail.
     tag_tail: ?[]const u8 = null,
@@ -118,6 +119,7 @@ pub const Pane = struct {
 };
 
 pub const Column = struct {
+    tag: ?[]const u8 = null,
     weight: f32 = 1,
     panes: []const usize = &.{},
 };
@@ -130,13 +132,20 @@ pub const State = struct {
     screen: Size,
     active: usize = 0,
     topbar: []const u8 = "",
+    topbar_custom: ?[]const u8 = null,
     theme: []const u8 = "dark",
     columns: []const Column = &.{},
     panes: []const Pane = &.{},
     mounts: []const Mount = &.{},
 };
 
+fn validateTag(bar: []const u8) !void {
+    if (bar.len > limits.max_tag_tail or std.mem.indexOfAny(u8, bar, "\r\n\x00") != null or !std.unicode.utf8ValidateSlice(bar)) return error.BadDumpTag;
+}
+
 pub fn validate(state: State) !void {
+    if (state.topbar_custom) |bar| try validateTag(bar);
+    for (state.columns) |column| if (column.tag) |bar| try validateTag(bar);
     if (!std.mem.eql(u8, state.magic, magic)) return error.BadDumpMagic;
     if (state.version != version) return error.BadDumpVersion;
     if (state.panes.len == 0 or state.panes.len > max_panes) return error.BadDumpPanes;