R524809
54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
#!/usr/bin/env python3
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"""从 ToneOZ-Pinyin-WenKai-Regular.ttf 中提取拼音/字母/数字字符，生成新的字体文件。"""
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from fontTools.ttLib import TTFont
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from fontTools.subset import Subsetter
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from pathlib import Path
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BASE = Path(__file__).resolve().parent
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INPUT = BASE / "input-fonts" / "ToneOZ-Pinyin-WenKai-Regular.ttf"
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OUTPUT = BASE / "output-fonts" / "ToneOZ-Pinyin-Regular.ttf"
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# Unicode 码点范围
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RANGES = [
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(0x0020, 0x007E), # 基本 ASCII（字母、数字、标点）
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(0x00C0, 0x00FF), # 拉丁字母-1 补充
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(0x0100, 0x017F), # 拉丁字母扩展 A
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(0x01CD, 0x01DC), # 拉丁字母扩展 B（含 ǎ ǐ ǒ ǔ 以及 ü 的四个声调变体）
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]
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def build_unicodes():
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codepoints = set()
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for start, end in RANGES:
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for cp in range(start, end + 1):
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codepoints.add(cp)
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return sorted(codepoints)
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def main():
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font = TTFont(INPUT)
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unicodes = build_unicodes()
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# 使用 fonttools Subsetter 提取指定字符
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sub = Subsetter()
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sub.populate(unicodes=unicodes)
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sub.subset(font)
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OUTPUT.parent.mkdir(parents=True, exist_ok=True)
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font.save(OUTPUT)
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print(f"提取完成: {OUTPUT}")
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print(f"包含 {len(unicodes)} 个码点")
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# 输出范围统计
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for start, end in RANGES:
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name = f"U+{start:04X}-U+{end:04X}"
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glyphs_in_range = sum(
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1 for cp in range(start, end + 1) if cp in set(unicodes)
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)
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print(f" {name}: {glyphs_in_range} 个字符")
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if __name__ == "__main__":
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main()
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