tiny.pdf.font

1const std = @import("std");23const cmap = @import("cmap.zig");45pub const Font = struct {6    map: ?cmap.Map = null,7};89pub const Entry = struct {10    name: []const u8,11    font: *const Font,12};1314pub const Set = struct {15    entries: []const Entry = &.{},1617    pub fn get(self: Set, name: []const u8) ?*const Font {18        for (self.entries) |entry| {19            if (std.mem.eql(u8, entry.name, name)) return entry.font;20        }21        return null;22    }23};2425pub fn appendText(current: ?*const Font, allocator: std.mem.Allocator, out: *std.ArrayList(u8), bytes: []const u8) error{OutOfMemory}!void {26    if (current) |selected| {27        if (selected.map) |map| return map.appendDecoded(allocator, out, bytes);28    }29    out.appendSlice(allocator, bytes) catch return error.OutOfMemory;30}3132test "font set resolves names and unmapped fonts pass bytes through" {33    const plain = Font{};34    const set = Set{ .entries = &.{.{ .name = "F1", .font = &plain }} };35    try std.testing.expect(set.get("F1") != null);36    try std.testing.expect(set.get("F2") == null);37    var out = std.ArrayList(u8).empty;38    defer out.deinit(std.testing.allocator);39    try appendText(set.get("F1"), std.testing.allocator, &out, "raw bytes");40    try appendText(null, std.testing.allocator, &out, "!");41    try std.testing.expectEqualStrings("raw bytes!", out.items);42}

1pub const font = @import("font.zig");