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https://github.com/2234839/web-font.git
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6f0e3d8e6b
name.js write 函数改用 view.setUint16 后未同步 writer.offset， 导致 name 字符串覆盖 header，name 表损坏。浏览器依赖 name 表 识别字体所以无法渲染，而 Node 端渲染不依赖 name 表所以基准 测试未检测到。 同时修复 cmap sizeof 动态计算记录头大小的问题。 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
72 lines
2.4 KiB
TypeScript
72 lines
2.4 KiB
TypeScript
/**
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* 字体裁剪验证 — 裁剪多种字体并保存为文件
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* 运行: pnpm tsx scripts/test_font_valid.ts
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*/
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import { Font } from "../vendor/fonteditor-core/lib/ttf/font.js";
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import { readFile, writeFile, mkdir, readdir } from "node:fs/promises";
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const OUTPUT_DIR = "benchmark_results/font_test";
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await mkdir(OUTPUT_DIR, { recursive: true });
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/** 在所有字体目录中查找字体 */
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import { stat } from "node:fs/promises";
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const fontDirs = ["font/admin", "font", "font/temp"];
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async function findFonts(): Promise<Array<{ name: string; path: string }>> {
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const all: Array<{ name: string; path: string }> = [];
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for (const dir of fontDirs) {
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try {
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const entries = await readdir(dir);
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for (const entry of entries) {
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const name = typeof entry === "string" ? entry : entry.name;
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if (/\.(ttf|otf|woff|woff2)$/i.test(name)) {
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const fullPath = `${dir}/${name}`;
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try {
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const s = await stat(fullPath);
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if (s.isFile()) {
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all.push({ name, path: fullPath });
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}
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} catch { /* skip */ }
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}
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}
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} catch { /* skip */ }
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}
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return all;
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}
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const fonts = await findFonts();
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const testText = "你好世界";
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const codePoints = [...testText].map(c => c.codePointAt(0)!);
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console.log("\n=== 字体裁剪验证 ===\n");
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console.log(`测试文本: "${testText}"\n`);
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for (const f of fonts) {
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try {
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const raw = await readFile(f.path);
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const buf = new Uint8Array(raw).buffer;
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const font = Font.create(buf, { type: "ttf", subset: codePoints });
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const optimized = font.optimize().sort();
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const result = optimized.write({ type: "ttf" });
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const data = typeof result === "string"
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? new TextEncoder().encode(result)
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: new Uint8Array(result);
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const outPath = `${OUTPUT_DIR}/${f.name.replace(/\.[^.]+$/, "")}_subset.ttf`;
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await writeFile(outPath, data);
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/** 检查 TTF 文件头 */
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const view = new DataView(data.buffer, data.byteOffset, data.byteLength);
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const sfVersion = view.getUint32(0, false);
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const numTables = view.getUint16(4, false);
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console.log(` ${f.name}: ${data.length.toLocaleString()} bytes, sfVersion=0x${sfVersion.toString(16)}, numTables=${numTables}`);
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} catch (e: any) {
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console.log(` ${f.name}: ERROR - ${e.message}`);
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}
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}
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console.log(`\n输出目录: ${OUTPUT_DIR}/`);
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console.log("请在 Windows 字体查看器中打开验证");
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