style(eval): move in its own package

1 files changed, 45 insertions, 0 deletions

diff --git a/src/eval/Title.zig b/src/eval/Title.zig
new file mode 100644
index 0000000..56524ad
--- /dev/null
+++ b/src/eval/Title.zig
@@ -0,0 +1,45 @@
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const HTML = Parent.HTML;
+const Parent = @import("Element.zig");
+
+level: u3,
+content: Parent,
+
+const Self = @This();
+
+pub fn init(alloc: Allocator, level: u3, content: Parent) !*Self {
+    const v = try alloc.create(Self);
+    v.* = .{ .level = level, .content = content };
+    return v;
+}
+
+pub fn element(self: *Self) Parent {
+    return .{ .ptr = self, .vtable = .{ .deinit = destroy, .html = html } };
+}
+
+pub fn deinit(self: *Self, alloc: Allocator) void {
+    self.element().deinit(alloc);
+}
+
+fn destroy(context: *anyopaque, alloc: Allocator) void {
+    var self: *Self = @ptrCast(@alignCast(context));
+    self.content.deinit(alloc);
+    alloc.destroy(self);
+}
+
+fn html(context: *anyopaque, alloc: Allocator) HTML.Error!HTML {
+    const self: *Self = @ptrCast(@alignCast(context));
+    var el = try HTML.init(alloc, .content, switch (self.level) {
+        1 => "h1",
+        2 => "h2",
+        3 => "h3",
+        4 => "h4",
+        5 => "h5",
+        6 => "h6",
+        else => unreachable,
+        });
+    errdefer el.deinit();
+    try el.appendContent(try self.content.html(alloc));
+    return el;
+}