style(html): split elements in multiple files

1 files changed, 8 insertions, 222 deletions

diff --git a/src/eval/html/Element.zig b/src/eval/html/Element.zig
index a0e2a02..6bccc0f 100644
--- a/src/eval/html/Element.zig
+++ b/src/eval/html/Element.zig
@@ -5,6 +5,11 @@ const eql = std.mem.eql;
 const List = std.ArrayList;
 const html = @import("html.zig");
 
+pub const Void = @import("Void.zig");
+pub const Content  = @import("Content.zig");
+pub const Literal = @import("Literal.zig");
+pub const Root = @import("Root.zig");
+
 pub const Error = html.Error || Allocator.Error;
 
 const Element = @This();
@@ -18,225 +23,6 @@ pub fn render(self: Element, alloc: Allocator) Error![]const u8 {
     return self.vtable.render(self.ptr, alloc);
 }
 
-fn renderAttribute(alloc: Allocator, attributes: *std.StringArrayHashMap([]const u8), class_list: *std.BufSet) Error!?[]const u8 {
-    const class = try renderClass(alloc, class_list);
-    defer if (class) |it| {
-        _ = attributes.orderedRemove("class");
-        alloc.free(it);
-    };
-    if (class) |it| try attributes.put("class", it);
-    var iter = attributes.iterator();
-    if (iter.len == 0) return null;
-    var acc = try List(u8).initCapacity(alloc, iter.len);
-    errdefer acc.deinit(alloc);
-    try acc.append(alloc, ' ');
-    var i: usize = 0;
-    while (iter.next()) |it| : (i += 1) {
-        try acc.appendSlice(alloc, it.key_ptr.*);
-        try acc.appendSlice(alloc, "=\"");
-        const escape = try html.escape(alloc, it.value_ptr.*);
-        defer alloc.free(escape);
-        try acc.appendSlice(alloc, escape);
-        try acc.append(alloc, '"');
-        if (i < iter.len - 1) try acc.append(alloc, ' ');
-    }
-    return try acc.toOwnedSlice(alloc);
-}
-
-fn renderClass(alloc: Allocator, class_list: *std.BufSet) Error!?[]const u8 {
-    const n = class_list.count();
-    if (n == 0) return null;
-    var acc = try List(u8).initCapacity(alloc, n);
-    errdefer acc.deinit(alloc);
-    var iter = class_list.iterator();
-    var i: usize = 0;
-    while (iter.next()) |it| : (i += 1) {
-        try acc.appendSlice(alloc, it.*);
-        if (i < n - 1) try acc.append(alloc, ' ');
-    }
-    return try acc.toOwnedSlice(alloc);
-}
-
-pub const Void = struct {
-    alloc: Allocator,
-    tag: []const u8,
-    attributes: std.StringArrayHashMap([]const u8),
-    class_list: std.BufSet,
-
-    pub const Self = @This();
-
-    pub fn init(alloc: Allocator, tag: []const u8) Error!*Self {
-        const v = try alloc.create(Self);
-        v.* = .{
-            .alloc = alloc,
-            .tag = tag,
-            .attributes = .init(alloc),
-            .class_list = .init(alloc),
-        };
-        return v;
-    }
-
-    pub fn element(self: *Self) Element {
-        return .{ .vtable = .{ .render = Self.render }, .ptr = self };
-    }
-
-    pub fn setAttribute(self: *Self, k: []const u8, v: []const u8) Error!void {
-        try self.attributes.put(try self.alloc.dupe(u8, k), try self.alloc.dupe(u8, v));
-    }
-
-    pub fn removeAttribute(self: *Self, k: []const u8) void {
-        _ = self.attributes.orderedRemove(k);
-    }
-
-    pub fn hasAttribute(self: *Self, k: []const u8) bool {
-        return self.attributes.contains(k);
-    }
-
-    pub fn appendClass(self: *Self, v: []const u8) Error!void {
-        try self.class_list.insert(v);
-    }
-
-    pub fn hasClass(self: *Self, v: []const u8) bool {
-        return self.class_list.contains(v);
-    }
-
-    pub fn removeClass(self: *Self, v: []const u8) void {
-        self.class_list.remove(v);
-    }
-
-    fn render(context: *anyopaque, alloc: Allocator) Error![]const u8 {
-        const self: *Self = @ptrCast(@alignCast(context));
-        const attr = try renderAttribute(alloc, &self.attributes, &self.class_list);
-        defer if (attr) |it| alloc.free(it);
-        var acc = try List(u8).initCapacity(alloc, self.tag.len + 2);
-        errdefer acc.deinit(alloc);
-        try acc.append(alloc, '<');
-        try acc.appendSlice(alloc, self.tag);
-        if (attr) |it| try acc.appendSlice(alloc, it);
-        try acc.append(alloc, '>');
-        return acc.toOwnedSlice(alloc);
-    }
-};
-
-pub const Content = struct {
-    base: Void,
-    content: List(Element),
-
-    pub const Self = @This();
-
-    pub fn init(alloc: Allocator, tag: []const u8) Error!*Self {
-        const v = try alloc.create(Self);
-        v.* = .{
-            .base = .{
-                .alloc = alloc,
-                .tag = tag,
-                .attributes = .init(alloc),
-                .class_list = .init(alloc),
-            },
-            .content = try .initCapacity(alloc, 2),
-        };
-        return v;
-    }
-
-    pub fn element(self: *Self) Element {
-        return .{ .vtable = .{ .render = Self.render }, .ptr = self };
-    }
-
-    pub fn append(self: *Self, content: Element) Error!void {
-        return self.content.append(self.base.alloc, content);
-    }
-
-    fn render(context: *anyopaque, alloc: Allocator) Error![]const u8 {
-        const self: *Self = @ptrCast(@alignCast(context));
-        var base = self.base;
-        const b = try base.element().render(alloc);
-        defer alloc.free(b);
-        var acc = try List(u8).initCapacity(alloc, b.len + self.content.items.len);
-        try acc.appendSlice(alloc, b);
-        for (self.content.items) |it| {
-            var v = it;
-            const sub = try v.render(alloc);
-            defer alloc.free(sub);
-            try acc.appendSlice(alloc, sub);
-        }
-        try acc.appendSlice(alloc, "</");
-        try acc.appendSlice(alloc, base.tag);
-        try acc.append(alloc, '>');
-        return acc.toOwnedSlice(alloc);
-    }
-};
-
-pub const Literal = struct {
-    literal: []const u8,
-
-    const Self = @This();
-
-    pub fn init(alloc: Allocator, literal: []const u8) Error!*Literal {
-        const v = try alloc.create(Self);
-        v.* = .{ .literal = try html.escape(alloc, literal) };
-        return v;
-    }
-
-    pub fn element(self: *Self) Element {
-        return .{ .vtable = .{ .render = Self.render }, .ptr = self };
-    }
-
-    fn render(context: *anyopaque, alloc: Allocator) Error![]const u8 {
-        const self: *Self = @ptrCast(@alignCast(context));
-        return try alloc.dupe(u8, self.literal);
-    }
-};
-
-pub const Root = struct {
-    content: List(Element),
-    arena: Arena,
-
-    const Self = @This();
-
-    pub fn init(parent: Allocator) Error!*Self {
-        var s = Self{
-            .content = undefined,
-            .arena = .init(parent),
-        };
-        var alloc = s.arena.allocator();
-        s.content = try .initCapacity(alloc, 2);
-        const v = try alloc.create(Self);
-        v.* = s;
-        return v;
-    }
-
-    pub fn deinit(self: *Self) void {
-        self.arena.deinit();
-    }
-
-    pub fn element(self: *Self) Element {
-        return .{ .vtable = .{ .render = Self.render, }, .ptr = self };
-    }
-
-    pub fn allocator(self: *Self) Allocator {
-        return self.arena.allocator();
-    }
-
-    pub fn append(self: *Self, el: Element) Error!void {
-        try self.content.append(self.allocator(), el);
-    }
-
-    fn render(context: *anyopaque, alloc: Allocator) Error![]const u8 {
-        const self: *Self = @ptrCast(@alignCast(context));
-        if (self.content.items.len == 0) return "";
-        var acc = try List(u8).initCapacity(alloc, self.content.items.len);
-        errdefer acc.deinit(alloc);
-
-        var arena = Arena.init(alloc);
-        defer arena.deinit();
-        for (self.content.items) |it| {
-            const res = try it.render(arena.allocator());
-            try acc.appendSlice(alloc, res);
-        }
-        return acc.toOwnedSlice(alloc);
-    }
-};
-
 fn doTest(alloc: Allocator, el: Element, exp: []const u8) !void {
     const got = try el.render(alloc);
     defer alloc.free(got);
@@ -246,7 +32,7 @@ fn doTest(alloc: Allocator, el: Element, exp: []const u8) !void {
     };
 }
 
-test "void element" {
+test "void" {
     var arena = Arena.init(std.testing.allocator);
     defer arena.deinit();
     const alloc = arena.allocator();
@@ -262,7 +48,7 @@ test "void element" {
     try doTest(alloc, img.element(), "<img src=\"foo\" alt=\"bar\">");
 }
 
-test "content element" {
+test "content" {
     var arena = Arena.init(std.testing.allocator);
     defer arena.deinit();
     const alloc = arena.allocator();
@@ -283,7 +69,7 @@ test "content element" {
     try doTest(alloc, div.element(), "<div class=\"foo-bar\"><p>hello world</p><br></div>");
 }
 
-test "root element" {
+test "root" {
     const root = try Root.init(std.testing.allocator);
     defer root.deinit();
     const alloc = root.allocator();