runtime-po/boldquot.sed - platform/external/bison - Git at Google

 s/"\([^"]*\)"/“\1”/g
 s/`\([^`']*\)'/‘\1’/g
 s/ '\([^`']*\)' / ‘\1’ /g
 s/ '\([^`']*\)'$/ ‘\1’/g
 s/^'\([^`']*\)' /‘\1’ /g
 s/“”/""/g
 s/“/“[1m/g
 s/”/[0m”/g
 s/‘/‘[1m/g
 s/’/[0m’/g
	s/"\([^"]*\)"/“\1”/g
	s/`\([^`']*\)'/‘\1’/g
	s/ '\([^`']*\)' / ‘\1’ /g
	s/ '\([^`']*\)'$/ ‘\1’/g
	s/^'\([^`']*\)' /‘\1’ /g
	s/“”/""/g
	s/“/“[1m/g
	s/”/[0m”/g
	s/‘/‘[1m/g
	s/’/[0m’/g