Text processing apparatus with editing of stored document at eac

Details Text processing apparatus with editing of stored document at eac Text processing apparatus with editing of stored document at eac

1981-06-12

1984-08-07

Gruber, Felix D.

Boots, shoes, and leggings

G06F 900

Patent

active

044647301

ABSTRACT:
A text terminal in which a text stream received on a communication link is segmented by a segmenter into chained variable-length segments which are stored in a random access text store. Each segment can contain at most one extended formatting command. Segments have slack areas to allow the subsequent insertion of text. A text editor receives keystroke signals from a keyboard and modifies the stored text stream, new segments being created as necessary for extended formatting commands or when slack areas are full. An interpreter/formatter is invoked when a received text stream has been segmented or when the stored text stream has been modified to format and map the stored text stream into a refresh buffer driving a cathode ray tube (CRT) display. The interpreter/formatter maintains a status index with condensed versions of the extended formatting commands stored in the text stream. Formatting is inhibited by the editor if it receives a keystroke requiring modification of the stored text. After editing segmented text is desegmented by a desegmenter and returned to the host along a communication link in the form in which it was received. Preferably, the terminal is implemented with a microprocessor which can also control standard data entry applications as well as text processing.

REFERENCES:
patent: 3701972 (1972-10-01), Berkeley et al.
patent: 3972026 (1976-07-01), Waitman et al.
patent: 4040024 (1977-08-01), Cowe et al.
patent: 4203107 (1980-05-01), Lovercheck
Do the Job for Less, by Stephen Guralnick, Kilobaud, Mar. 1980, p. 110.
Super Word Processors, by Rod Hallen, Kilobaud, Jun. 1980, p. 214.
Development of A Text Handling Program, Kilobaud, Feb. 1980, p. 112.

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