Patent US 4,587,631

The specification discloses a method for adjusting text in a word processing system when the insert mode is completed. An indicator is set to indicate a change active condition if a change is made to the current line of text when an establish insert mode key is depressed by the operator. The indicator is interrogated to determine if a change active condition has been indicated when a terminate insert mode key is later depressed by the operator. When a change active condition is detected, the line end codes for the current line of text are adjusted to provide an adjusted line. The adjusted line is then interrogated to determine whether a paragraph boundary or page end code is included. If no paragraph boundary or page end code is included, the adjusted line is interrogated to determine whether a change was made in the line end code. Each succeeding line following the adjusted line is adjusted until a paragraph boundary or page end code is encountered or no change in the line end code is made for that line.