Kannada字体不使用我建议的字体

Question

我有一个文件10-sub.conf，用于替换特定区域设置的字体：(使用这答案创建)

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">

<!-- file saved in /.config/fontconfig/conf.d -->

<fontconfig>
    <match>
        <test compare="contains" name="lang">
            <string>hi</string>
        </test>
        <edit mode="prepend" name="family">
            <string>Lohit Devanagari</string>
        </edit>
    </match>
    <match>
        <test compare="contains" name="lang">
            <string>gu</string>
        </test>
        <edit mode="prepend" name="family">
            <string>Lohit Gujarati</string>
        </edit>
    </match>
    <match>
        <test compare="contains" name="lang">
            <string>kn</string>
        </test>
        <edit mode="prepend" name="family">
            <string>Lohit Kannada</string>
        </edit>
    </match>
    <alias>
        <family>sans-serif</family>
            <prefer>
                <family>Ubuntu</family>
                <familt>DejaVu Sans</family>
                <family>Liberation Sans</family>
                <family>Noto Sans</family>
                <family>Arial Unicode MS</family>
            </prefer>
    </alias>
    
    <alias>
        <family>serif</family>
            <prefer>
                <family>Noto Serif</family>
                <family>DejaVu Serif</family>
                <family>Liberation Serif</family>
                <family>Noto Serif Devanagari</family>
                <family>Arial Unicode MS</family>
            </prefer>
    </alias>
    
    <alias>
        <family>monospace</family>
            <prefer>
                <family>Ubuntu Mono</family>
                <family>Noto Sans Mono</family>
                <family>DejaVu Sans Mono</family>
                <family>Liberation Mono</family>
                <family>Arial Unicode MS</family>
            </prefer>
    </alias>    
</fontconfig>

Arial字体用于捕获系统上未安装的任何字体。这个方法适用于Devanagari和Gujarati，但是Kannada脚本总是由Arial Unicode而不是Lohit Kannada呈现。我已经在我的系统/usr/share/fonts/truetype/lohit-kannada/Lohit-Kannada.ttf上安装了Lohit Kannada

系统: Ubuntu 22.04 on GNOME 42.5。

访问这网站将Kannada字体呈现为Arial，尽管在文件中为其提供了<match>，而这网站则以Lohit古吉拉特语呈现古吉拉特语(删除古吉拉特语的<match>标记时，古吉拉特语以回退字体呈现)

LC_CTYPE=kn_IN fc-match输出

Lohit-Kannada.ttf: "Lohit Kannada" "Regular"

Answer 1

我不得不将从系统中删除以使其工作。然后，我稍微调整了配置文件：

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
   <alias>
        <family>sans-serif</family>
        <prefer>
            <family>Ubuntu</family>
            <family>Liberation Sans</family>
            <family>DejaVu Sans</family>
            <family>Noto Sans</family>
            <family>Lohit Devanagari</family>
            <family>Lohit Gujarati</family>          
        </prefer>
    </alias>
    
    <alias>
        <family>serif</family>
        <prefer>
            <family>Noto Serif</family>
            <family>Liberation Serif</family>
            <family>DejaVu Serif</family>
            <family>Noto Serif Devanagari</family>
        </prefer>
    </alias>
    
    <alias>
        <family>monospace</family>
        <prefer>
            <family>Ubuntu Mono</family>
            <family>Noto Sans Mono</family>
            <family>Liberation Mono</family>
            <family>Biryani</family>
        </prefer>
    </alias>    
</fontconfig>

此外，黑名单中的FreeSans和FreeSerif是因为它们不是为印度语而设计的，然而系统却以某种方式回到了它们身上(通过字体管理器很容易做到)：

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
<fontconfig>
  <selectfont>
    <rejectfont>
      <pattern>
        <patelt name="family">
          <string>FreeSerif</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>FreeSans</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>FreeMono</string>
        </patelt>
      </pattern>
    </rejectfont>
  </selectfont>
</fontconfig>