- $table{$mnem} = [
- $cp,
- $uninfo->[1] // '', # name
- $comparison,
- $alias ? 'l0 ex' : $uninfo->[0] // '', # class
- $uninfo->[4] // (), # string
- ];
+
+ if (${$alias}) {
+ # aliases an earlier occurrence
+ if ($matchvim and ${$alias}->[2] lt $comparison) {
+ # replace lower compatibility level
+ ${$alias}->[3] = 'l0';
+ ${$alias}->[2] .= ' u-' . ${$alias}->[2];
+ ${$alias} = undef;
+ }
+ else {
+ $class = 'l0';
+ my $menm = substr($mnem, 1, 1).substr($mnem, 0, 1);
+ if ($table{$menm} && $table{$menm}[0] == $cp) {
+ # unannotated if identical to reversed input
+ $cp = 0;
+ }
+ else {
+ $class .= ' ex';
+ }
+ }
+ }
+
+ $table{$mnem} = [ $cp, $name, $comparison, $class, $string // () ];
+ ${$alias} //= $table{$mnem};