mybin

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git clone https://a3nm.net/git/mybin/
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addmathjax (1252B)

      1 #!/bin/bash
      2 
      3 TEMP=$(mktemp)
      4 
      5 CACHEDIR="$HOME/temp/addmathjax.cache"
      6 mkdir -p "$CACHEDIR"
      7 
      8 # a3nm-mathjax-testing follows a base debian image and included config
      9 # and a container must have been created with
     10 # sudo docker run -di --name=a3nm-mathjax-testing \
     11 #   a3nm-mathjax-testing bash
     12 #if ! sudo docker ps | grep '\sa3nm-mathjax-testing$' > /dev/null
     13 #then
     14 #  sudo docker start a3nm-mathjax-testing >/dev/null || {
     15 #      echo "cannot start the mathjax container" >&2; exit 3;
     16 #    }
     17 #fi
     18 
     19 cat > $TEMP
     20 if grep -E "class=\"math\"|class=\"tex\"|class=\"MathJax_Preview\"" $TEMP > /dev/null
     21 then
     22   # expensive processing
     23   SHA=$(sha1sum < $TEMP | cut -d ' ' -f1)
     24   if [ -f "$CACHEDIR/$SHA" ]
     25   then
     26     # already cached
     27     cat "$CACHEDIR/$SHA"
     28   else
     29     TEMP2=$(mktemp)
     30     #sudo docker exec -i a3nm-mathjax-testing node_modules/mathjax-node/bin/page2html \
     31     ~/apps/MathJax-node/bin/page2html \
     32       --fontURL "https://a3nm.net/mathjax/fonts/HTML-CSS" <$TEMP >$TEMP2 || \
     33     { echo "cannot run mathjax" >&2; exit 2;}
     34     sed 's,<style id="MathJax_CHTML_styles">undefined</style>,,g' "$TEMP2" |
     35       sed 's,<span class="mjx-char"></span>,,g' >$CACHEDIR/$SHA
     36     cat "$CACHEDIR/$SHA"
     37     rm -f "$TEMP2"
     38   fi
     39 else
     40   cat "$TEMP"
     41 fi
     42 
     43 rm -f "$TEMP"
     44