marked

#!/bin/bash 

/usr/local/bin/marked "$@" \
 | sed \
     -e 's!\[\ \]!<input type="checkbox" onclick="return false" onkeydown="return false">!' \
     -e 's!\[[.\-]\]!<input type="checkbox" onclick="return false" onkeydown="return false" indeterminate>!' \
     -e 's!\[[√xX]\]!<input type="checkbox" onclick="return false" onkeydown="return false" checked>!' \
 | awk '{print;if($0~/indeterminate/)found=1;}END{if(found)print "<script>window.addEventListener(\"load\",function(){var arr=document.querySelectorAll(\"input[type=checkbox][indeterminate]\");for(i in arr)arr[i].indeterminate=true;});</script>"}'

sample.md

GitHub style Task List in Marked.app

• Implement via custom processor
• [.] Allow toggle of tasks
• Ship with Marked.app

sample.md.png