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保留逐字 margin／jiya.bias 字体后备方案；补齐 demo 重排、量测边界说明及共享规则 1.0.1 反例向量。 验证：完整构建通过，Node 376 项、WKWebView 64 项及原生 demo 9 项通过；Firefox 仍暂缓。
96 lines
3.8 KiB
JavaScript
96 lines
3.8 KiB
JavaScript
import assert from "node:assert/strict";
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import { mkdtempSync, rmSync } from "node:fs";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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import { spawnSync } from "node:child_process";
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import { test } from "node:test";
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import { fileURLToPath } from "node:url";
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const python = "python3";
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const available = spawnSync(python, [ "-c", "import fontTools" ]).status === 0;
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const tool = fileURLToPath(new URL("../tools/measure-bias.py", import.meta.url));
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const fixture = `
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from fontTools.fontBuilder import FontBuilder
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from fontTools.pens.ttGlyphPen import TTGlyphPen
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from fontTools.feaLib.builder import addOpenTypeFeaturesFromString
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import sys
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fb = FontBuilder(1000, isTTF=True)
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names = ['.notdef', 'comma', 'commaHant', 'fullstop']
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fb.setupGlyphOrder(names)
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fb.setupCharacterMap({0xff0c: 'comma', 0xff0e: 'fullstop'})
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glyphs = {}
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for name, left, right in [('.notdef', 0, 0), ('comma', 50, 250),
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('commaHant', 450, 550), ('fullstop', 650, 850)]:
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p = TTGlyphPen(None)
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if right > left:
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p.moveTo((left, 0)); p.lineTo((right, 0)); p.lineTo((right, 150))
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p.lineTo((left, 150)); p.closePath()
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glyphs[name] = p.glyph()
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fb.setupGlyf(glyphs)
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fb.setupHorizontalMetrics({'.notdef': (1000, 0), 'comma': (1000, 50),
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'commaHant': (1000, 450), 'fullstop': (1000, 650)})
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fb.setupHorizontalHeader(ascent=800, descent=-200)
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fb.setupNameTable({'familyName': 'BiasFixture', 'styleName': 'Regular',
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'uniqueFontIdentifier': 'BiasFixture', 'fullName': 'BiasFixture',
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'psName': 'BiasFixture'})
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fb.setupOS2(sTypoAscender=800, sTypoDescender=-200, usWinAscent=800, usWinDescent=200)
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fb.setupPost(); fb.setupMaxp()
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features = 'languagesystem hani ZHT; feature locl { script hani; language ZHT; sub comma by commaHant; } locl;'
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if sys.argv[2] == 'halt':
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features += ' feature halt { sub fullstop by comma; } halt;'
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addOpenTypeFeaturesFromString(fb.font, features)
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fb.save(sys.argv[1])
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`;
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function run(args)
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{
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const result = spawnSync(python, args, { encoding: "utf8" });
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assert.equal(result.status, 0, result.stderr || String(result.error));
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return result.stdout;
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}
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function withFont(feature, check)
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{
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const dir = mkdtempSync(join(tmpdir(), "juzhen-bias-test-"));
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try
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{
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const font = join(dir, "fixture.ttf");
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run([ "-c", fixture, font, feature ]);
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check(font);
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}
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finally { rmSync(dir, { recursive: true, force: true }); }
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}
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function table(output)
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{
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return JSON.parse(output.slice(output.indexOf("\n{") + 1));
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}
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test("measure-bias：全角句點入表，lang 僅選鍵且輸出說明 cmap／locl 限制",
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{ skip: available ? false : "需工具本身的 Python fonttools 依賴" }, () =>
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{
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withFont("none", (font) =>
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{
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for (const lang of [ "zh-Hans", "zh-Hant" ])
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{
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const output = run([ tool, font, lang ]);
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assert.equal(table(output)[lang]["．"], "right");
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assert.equal(table(output)[lang]["，"], "left", "仍量預設 cmap，未套 ZHT locl 替代字形");
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assert.match(output, /未做 shaping.*未應用 locl/);
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assert.match(output, /語言參數僅選 JSON 分類鍵/);
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assert.match(output, /瀏覽器實際字形逐字微調/);
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}
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});
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});
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test("measure-bias：halt feature 存在只報存在，不承諾逐字覆蓋",
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{ skip: available ? false : "需工具本身的 Python fonttools 依賴" }, () =>
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{
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withFont("halt", (font) =>
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{
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const output = run([ tool, font ]);
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assert.match(output, /halt：有.*不保證涵蓋所有標點/);
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assert.equal(table(output)["zh-Hans"]["．"], "right", "feature 偵測不改預設輪廓分類");
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});
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});
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