pdf:uweb:echo file:///sdcard/uweb/app/pdfviewer.html?file=%u#page=1
djvu:uweb:echo file:///sdcard/uweb/app/djvu.html?url=%u#page=1
epub:uweb:echo file:///sdcard/uweb/app/epub.html?u=%u
txt:uweb:echo file:///sdcard/uweb/app/txtview.html?url=%u#page=1
md:uweb:echo file:///sdcard/uweb/app/txtview.html?url=%u#page=1
py:termux/*:python %f;exit -1