CHARACTER INFORMATION PROCESSOR FOR PRINTING CHARACTERS

摘要

A character information processor which can be applied to a tape printing device. The character information processor is provided with a read-only memory in which a table containing the levels of alternatives of a menu hierarchical structure set correspondingly to each edition function is stored. When an edition level is selected by an operator by keying, only edition operations, which are available at the selected edition level, are displayed on the screen of a display unit as choices. An example of the function of editing a character string is a function for enabling the restoration of a text, on which an edition operation such as an input operation and a deleting operation has been once performed. This function is implemented by providing a restoration buffer in the processor and by storing a character or a character string, on which an operation is performed, and a cause-for-restoration parameter representing a kind of an operation in the processor each time when an operation such as an input and a deletion is performed, and by performing a restoration operation according to the cause-for-restoration parameter. Further, regarding an operation of editing a printing layout, the processor has an operation of performing a text alignment by converting a full-size space, which is inputted by keying similarly as in the case of an ordinary character, into a half-size space to be treated as a space of a size, which is half of the size of a full-size character, when printing. Moreover, regarding an operation of editing ruled lines, the processor has the following edition function to be performed when printing two adjoining or adjacent paragraphs in such a way that one side of a ruled-line frame pattern for enclosing one of the two paragraphs overlaps with one side of a ruled-line frame pattern for enclosing the other of the two paragraphs. Namely, this edition function is to generate a connecting ruled-line pattern preliminarily prepared as a frame pattern for an overlap between the two ruled-line frame patterns in the case that the two ruled-line frame patterns have a same attribute. This facilitates an operation of designating an ruled-line frame pattern and prevents ill effects of the double printing of a same ruled line.