" //some settings// vim: et

:%s: \(\S\+\)4\.\(\S*\): \18\2 \~ \18 \~ \18:g
:%s: \(\S\+\)4\(\S*\): \18\2 \~ \18:g
:%s:\(\~ \S\+\)[,']:\1:g
" caution: might work badly on hand-written lines
:%s: \(\S\+\)8\(\S*\)\{ \~\}* \(\S\+8\S*\)\( \~\}*: \\times 2\/3 { \14\2\3 \4\5 }:g