Abstract: A document editing hyphenating text words to obtain a more efficient use of the print material and provide a more aesthetically pleasing printed document. The apparatus has a keyboard for inputting text and including a hyphenation key. Also included in the apparatus are a display, a CPU, and a word dictionary that stores data of hyphenation positions of words. Once text is entered into a hot zone at the end of a line, the CPU executes line advance at the first space in the hot zone or the space preceding the word entered in the hot zone. When hyphenation is selected by the operator, based upon the displayed text, a cursor is moved to the left of a current line and the CPU calculates how many letters can be added to the right end of the preceding line. The CPU produces a display immediately above the word to the right of the cursor that indicates the number of letters that may be moved to the preceding line.

Abstract: A text editing device capable of representing on a display a variable pertaining to inputted data in response to movement of a cursor on the display screen as the data is inputted. The device is further provided with a controller which prevents the representation of the variable from changing if data is inputted and hence the cursor moves at a speed greater than a predetermined value.