Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/cmd/tex/web2c/web2c/cvtmf2.sed
s/else write/else\ write/ s/ maxcoef( *[^( ])/ lmaxcoef\1/g s/ b1/ lb1/g s/ b2/ lb2/g s/ b3/ lb3/g