if (id ~ /Annex/)
id = a[2]
if (id ~ /^([A-Z]|[1-9]\.|[1-9A-Z]\.[0-9.]*[0-9]|Contents|Index|Foreword|Introduction|Bibliography)$/ &&
- (n==1 || a[2] ~ /^[A-Z.v]/)) {
+ (n==1 || a[2] ~ /^[A-Z.v_]/)) {
sub(/^ +/,"",s)
if (id ~ /\.$/)
id = substr(id,1,length(id)-1)