12. The system of claim 10 , wherein: the storage device is further configured to store a format table that is associated with the word processing document and that comprises format entries that each define a unique format to be applied to text; the interface is further configured to receive second information that describes a second input provided to the user interface of the application displaying the word processing document; and the user input processor is further configured to: identify a second type of command that is associated with the second input; select, in response to the second type of command being identified as a command to adjust the textual content to have a particular format, a particular format entry that corresponds to the particular format in the format table; and modify the first entry in the edit table to refer to the selected format entry.
13. The system of claim 12 , wherein: when the format table does not include a format entry for the particular format, the user input processor is further configured to create the particular format entry based on the particular format and to add the particular format entry to the format table; and the particular format entry comprises a plurality of bits, at least a portion of which each represent a Boolean value that indicates whether a corresponding textual style is included as part of the particular format.