Page "learned" Paragraph 544

Text reading is terminated when a pre-determined number of forms have been stored in the text-form list.

This initiates the second step of glossary lookup -- connecting the information cell of forms in the text-form list to dictionary forms.

Each form represented by the dictionary is looked up in the text-form list.

Each time a dictionary form matches a text form, the information cell of the matching text form is saved.

The number of dictionary forms skipped since the last one matched is also saved.

These two pieces of information for each dictionary form that is matched by a text form constitute the table of dictionary usage.

If each text form is marked when matched with a dictionary form, the text forms not contained in the dictionary can be identified when all dictionary forms have been read.

The appropriate action for handling these forms can be taken at that time.