JPH03235167A - Text editing device - Google Patents

Abstract

PURPOSE:To easily recover a text that is a result of edit in the text as an arbitrary stage where editing work is being performed by storing the text before edit and an inputted instruction, and adding sequentially change by the instruction on the text before edit. CONSTITUTION:This device is equipped with a before edit text memory device 1, an edit result memory device 2, an instruction memory device 3, and a text change device 4. When the present text that is the result of edit stored in the edit result memory device 2 is recovered at a certain time during edit to the text at a certain time before that, the text in the before edit text memory device 2 is duplicated on the edit result memory device 2 first. Secondarily, the instruction stored in the instruction memory device 3 is interpreted sequential ly with the text change device 4, and the text in the edit result memory device 2 is changed sequentially. Thereby, the text that is the result of the edit can be easily recovered in the text at the arbitrary stage where the editing work is being performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a text editing device that edits text by inputting instructions to a computer, word processor, or the like.

BACKGROUND OF THE INVENTION Recent advances in semiconductor technology have made it easy to edit input text, such as replacing, deleting, inserting, copying, etc., and then outputting the edited text. Conventional text editing devices of this type have the ability to convert text using - times commands.
By storing the text before conversion each time, changes to the text can be canceled if necessary.

Problems to be Solved by the Invention However, in conventional text editing devices, there is a problem in that when a text is converted by two or more commands, it is not possible to restore the text before the conversion.

The present invention solves these conventional problems by storing the text before editing and the input commands, and by sequentially adding changes according to the commands to the text before editing, thereby changing the editing results. To provide a text editing device capable of restoring a text to a text at any stage during editing work.

Means for Solving the Problems In order to achieve the above object, the text editing device according to the present invention includes a pre-edited text storage device that stores the text before editing;
an editing result storage device that stores the text of the current editing result;
It is equipped with an instruction storage device that stores input instructions, and a text modification device that uses the instructions to modify the text.

Effect of the present invention With the above-described configuration, the text changing device sequentially changes the unedited text stored in the pre-editing storage device using the commands stored in the command storage device. The editing result text stored in the result storage device can be restored to the text at any stage during editing work.

Example The figure is a block diagram of one embodiment of the present invention.

In the figure, 1 is a pre-edited text storage device that stores sentences before editing, 2 is an editing result storage device that stores current editing results, 3 is an instruction storage device that stores input instructions, and 4 is a storage device that stores sentences before editing. This is a text changing device that changes texts.

Next, the operation of the above embodiment will be explained. First, at the start of the editing work, the commands in the pre-edited text storage device 1 and the edited result storage device 2 are equally unedited texts. For example, a command entered manually using a keyboard is interpreted by the text changing device 4, and as a result, the text in the editing result storage device 2 is changed. At the same time, the instructions are stored in the instruction storage device 3. Next, when restoring the current editing result sentence stored in the editing result storage device 2 at a certain point during editing to the sentence at a previous point in time, first the sentence in the unedited sentence storage device 1 is restored. is copied to the editing result storage device 2. Next, the text changing device 4 sequentially interprets the commands stored in the command storage device 3 and sequentially changes the text in the editing result storage device 2.

Therefore, by performing such an operation, it is possible to restore the text at any point in time from the start of the editing work to the present in the editing result storage device 2.

Next, the procedure for text restoration in this embodiment will be described. Table 1 below lists the commands interpreted and executed by the text modification device 4.

Table 1 〉 Move the editing point one character to the right Move the editing point one character to the left m Delete one character to the left of the collection of fish and move the editing point one character to the left a,,,z iii Insert that character into the collection of fish Table 2 shows the kn collection result storage f from the start to the end of editing work.
It shows the changes in the sentence No. 2 and the input command. The symbol is the location of the edit point.

Table 2 Editing result storage device Instruction update >>>>upd
ate wood* upte ＞ ＞ upte book upt ＜ upt sep
set Unedited text storage device 1 at the end of this editing work
The contents are as follows.

update The contents of the instruction storage device 3 are as follows. Ning Ru.

>>>>*Thursday>>*<se To restore the text, the contents of the N pre-collection storage device 1 are copied to the editing result storage device 2, and the text modification device 4 sequentially copies the instructions stored in the instruction storage device 3. Interpret and make changes. The changes in the text in the editing result storage device 2 at this time are the same as the changes in the text during editing. This makes it possible to restore the contents of the editing result storage device 2 at each stage of the editing work.

Note that it is clear that similar effects can be obtained even if each device of this embodiment is made to correspond to a computer storage device and realized by program processing.

Effects of the Invention As described above, the text editing device according to the present invention is configured to memorize the text before editing and input instructions, and sequentially make changes to the text before editing based on the commands. This has the effect that it is possible to easily restore text resulting from editing into a text at any stage during editing work, which is difficult to do with an editing device.

[Brief explanation of drawings]

The figure is a block diagram showing one embodiment of the present invention. 1... Editing result storage device, 2... Editing result storage device, 3... Command storage device, 4... Text modification device.

Claims (1)

[Claims] A pre-edited text storage device that stores the text before editing, an editing result storage device that stores the text that is currently being edited, an instruction storage device that stores input commands, and a text change device that changes the text according to the command. The text changing device changes the text in the pre-edited text storage device according to the command from the instruction storage device, thereby changing the text of the editing result in the editing result storage device at any stage during the editing process. A text editing device characterized by restoring data in a text.