some cjk bold font can't display in firefox

[easthero]

The cjk characters bold font can't display in firefox which use <strong>bold font</strong> html tag,the display is correct which use <b>bold font></b> html tag.
we must modify /etc/fonts/fonts.conf,modify this part

               <test target="pattern" name="weight" compare="more_eq">
                        <int>200</int>
                </test>

change "<int>200</int>" to "<int>180</int>",then The cjk characters bold font can display which use <strong>bold font</strong> html tag

[atie (atie-at-matrix)]

@easthero, could you test with following configuration?

 <match target="font">
        <test name="weight" compare="less_eq">
                <const>medium</const>
        </test>
        <test target="pattern" name="weight" compare="more">
                <const>medium</const>
        </test>
        <edit name="embolden" mode="assign">
                <bool>true</bool>
        </edit>
        <edit name="weight" mode="assign">
                <const>bold</const>
        </edit>
 </match>

[easthero (easthero)]

sorry,no effective,and all Chinese characters can't display at all。

[atie (atie-at-matrix)]

@easthero, please attach your font configurations, let me know the URL you tested.

[easthero (easthero)]

this is my $HOME/.fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
 <match target="pattern" >
  <test name="family" qual="any" >
   <string>serif</string>
  </test>
  <edit mode="append" binding="strong" name="family" >
   <string>Bitstream Vera Serif</string>
  </edit>
 </match>
 <match target="pattern" >
  <test name="family" qual="any" >
   <string>sans-serif</string>
  </test>
  <edit mode="append" binding="strong" name="family" >
   <string>Bitstream Vera Sans</string>
  </edit>
 </match>
 <match target="pattern" >
  <test name="family" qual="any" >
   <string>monospace</string>
  </test>
  <edit mode="append" binding="strong" name="family" >
   <string>Bitstream Vera Sans Mono</string>
  </edit>
 </match>
 <alias>
  <family>serif</family>
  <prefer>
   <family>Bitstream Vera Serif</family>
   <family>SimSun</family>
   <family>WenQuanYi Bitmap Song</family>
   <family>AR PL New Sung</family>
  </prefer>
 </alias>
 <alias>
  <family>sans-serif</family>
  <prefer>
   <family>Bitstream Vera Sans</family>
   <family>SimSun</family>
   <family>WenQuanYi Bitmap Song</family>
   <family>Tahoma</family>
   <family>AR PL New Sung</family>
  </prefer>
 </alias>
 <alias>
  <family>monospace</family>
  <prefer>
   <family>Bitstream Vera Sans Mono</family>
   <family>SimSun</family>
   <family>WenQuanYi Bitmap Song</family>
   <family>AR PL New Sung</family>
  </prefer>
 </alias>
<!-- disable antialias when font size lessthan<17 pixelsize --> <match target="font" >
  <test name="family" >
   <string>SimSun</string>
   <string>AR PL New Sung</string>
   <string>AR PL ShanHeiSun Uni</string>
  </test>
  <test compare="more_eq" name="pixelsize" >
   <double>12</double>
  </test>
  <test compare="less_eq" name="pixelsize" >
   <double>16</double>
  </test>
  <edit mode="assign" name="antialias" >
   <bool>false</bool>
  </edit>
 </match>
<!--Enable "hinting & autohint" for all fonts. --> <match target="font" >
  <edit mode="assign" name="hinting" >
   <bool>true</bool>
  </edit>
  <edit mode="assign" name="autohint" >
   <bool>true</bool>
  </edit>
 </match>
 <match target="font" >
  <edit mode="assign" name="hinting" >
   <bool>true</bool>
  </edit>
 </match>
 <match target="font" >
  <edit mode="assign" name="hintstyle" >
   <const>hintmedium</const>
  </edit>
 </match>
</fontconfig>

[Abel Cheung (abelcheung)]

easthero, do you mean ALL chinese chars can't be displayed, including bold or non-bold ones?

Btw, Michael, I have created a sample test page that demonstrates this problem. After installing chinese fonts, visit this page:

http://deaddog.org/~deaddog/boldfont.html

This is screenshot captured without atie's config:

http://paste.ubuntu-nl.org/12821

The 2nd line and 3rd line in test page are both marked as bold, but the chinese letters in right hand side differ; one is emboldened and one is not.

The problem is, when using CSS style "style='font-weight: bold'", the font weight in fontconfig becomes 200, and hence becomes emboldened as requested in /etc/fonts/fonts.conf. But when sentences are enclosed inside <b> and </b>, the font weight is only 180 (semibold), and synthetic embolden glyph is not turned on.

[easthero (easthero)]

I mean use <strong></strong> tag can't display bold,use <b></b> and style='font-weight: bold is normal

[easthero (easthero)]

sorry for my mistake,I tested again,when <int>200</int>,use <b> and <strong> tags,chinese bold can't display,only use css "font-weight: bold" can display normal
here is my test file http://linuxfire.com.cn/~easthero/cjktest/test.html
here is my snapshot
use <int>200</int> http://linuxfire.com/~easthero/cjktest/200.png
use <int>180</int> http://linuxfire.com/~easthero/cjktest/180.png

[easthero (easthero)]

sorry,the snapshot url is error,the correct is here:
use <int>200</int> http://linuxfire.com.cn/~easthero/cjktest/200.png
use <int>180</int> http://linuxfire.com.cn/~easthero/cjktest/180.png

[easthero (easthero)]

this happen only in firefox,in konquror all is normal

[easthero (easthero)]

please close this issue ... all is normal

[easthero (easthero)]

this bug is resolved by version upgrade .. upgrade