Re: a warning-free way to apply <edit> to multiple font families?

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Jungshik SHIN (신정식) wrote:
Hi,

This is about https://bugs.freedesktop.org/show_bug.cgi?id=82582.

In the past (e.g. fontconfig 2.7.x), I could use the following to apply
<edit>'s to a group of font families :

<match target="font">
    <test name="family" compare="contains">
         <string>MYingHeiB5HK</string>
         <string>MYingHeiGB18030</string>
         <string>MSung GB18030</string>
         <string>MSung B5HK</string>
     </test>
     <!-- Turn on light auto-hint -->
     <!-- Turn off sub-pixel anti-aliasing -->
     <edit name="hinting" mode="assign"><bool>true</bool></edit>
     <edit name="autohint" mode="assign"><bool>true</bool></edit>
     <edit name="hintstyle" mode="assign"><const>hintslight</const></edit>
     <edit name="antialias" mode="assign"><bool>true</bool></edit>
     <edit name="rgba" mode="assign"><const>none</const></edit>
  </match>


Two ways to do it -- both should work:

(1) assign a flag to the font, match on the flag:

  <match target="font">
    <test name="family"><string>MYingHeiB5HK</string></test>
    <edit mode="assign" name="custom_autohint"><bool>true</bool></edit>
  </match>
  <match target="font">
    <test name="family"><string>MYingHeiGB18030</string></test>
    <edit mode="assign" name="custom_autohint"><bool>true</bool></edit>
  </match>
  [...]
  <match target="font"> <!-- (*) -->
    <test name="custom_autohint"><bool>true</bool></test>
    <edit name="hinting" mode="assign"><bool>true</bool></edit>
    <edit name="autohint" mode="assign"><bool>true</bool></edit>
    <edit name="hintstyle" mode="assign"><const>hintslight</const></edit>
    <edit name="antialias" mode="assign"><bool>true</bool></edit>
    <edit name="rgba" mode="assign"><const>none</const></edit>
  </match>

(2) same, but match on the inverse case (shorter):

  <match target="font">
    <edit mode="assign" name="custom_autohint"><bool>true</bool></edit>
  </match>
  <match target="font">
<test name="family" qual="all" compare="not_eq"><string>MYingHeiB5HK</string></test> <test name="family" qual="all" compare="not_eq"><string>MYingHeiGB18030</string></test>
    [...]
    <edit mode="assign" name="custom_autohint"><bool>false</bool></edit>

    <!-- ... edit block as in (*) above. -->
  </match>

"contains" uses substring matching, so that's hardly useful.


Raimund


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