Sometimes the PAD parser is confused and interprets something incorrectly as a PAD instruction.

In those cases a PAD entity can be used to prevent this.

Character    PAD entity
{   &open;
}   &close;
|   &pipe;
=   &eq;
,   ,
@   &at;

For example, in this manual the string {tag} must be writen as &open;tag&close;
to make sure the PAD parser leaves it alone.