- cat <<-END
- <li><label><input type="checkbox" name="$card" value="$cat"
- $(printf %s "$cats" |grep -qF "$cat" && printf %s 'checked="checked"')>${cat}</label></li>
- END
+ printf '<li><label><input %s type="checkbox" name="%s" value="%s">%s</label></li>' \
+ "$(printf %s "$cats" |grep -qF "$cat" && printf 'checked="checked"')" \
+ "$(attribsafe "$card")" "$(attribsafe "$cat")" "$(htmlsafe "$cat")"