Simple Line Editor Program Plan: A linked list which containing the nodes of type string is used to store the lines of the line editor. Each line of the editor is saved in the each nodes of the linked list sequentially. The line editor will start with a command “EDIT”, the word followed by the “EDIT” command will treated as the file name. The command “I” is used to insert in the editor. If the command “I” is followed by a number, the next line will save at that specific line. If the insert comment “I” does not follow by any numbers, the next line will insert in the current position. The command “D” is used to delete the lines from the editor. If “D” is not followed by any numbers, then current line will be deleted. If “D” is followed by one number, the line at that specific number will be deleted. If “D” is followed by two numbers, then all the lines between those lines will be deleted. The command “L” is used to list the lines as the delete does. The command “A” will append the next line inserted to all the existing lines. The command “E” is used to save the lines to a text file and exit the editor.

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Chapter 3, Problem 5PA

Program Plan Intro

Simple Line Editor

Program Plan:

A linked list which containing the nodes of type string is used to store the lines of the line editor.

Each line of the editor is saved in the each nodes of the linked list sequentially.

The line editor will start with a command “EDIT”, the word followed by the “EDIT” command will treated as the file name.

The command “I” is used to insert in the editor.

If the command “I” is followed by a number, the next line will save at that specific line.

If the insert comment “I” does not follow by any numbers, the next line will insert in the current position.

The command “D” is used to delete the lines from the editor.

If “D” is not followed by any numbers, then current line will be deleted.

If “D” is followed by one number, the line at that specific number will be deleted.

If “D” is followed by two numbers, then all the lines between those lines will be deleted.

The command “L” is used to list the lines as the delete does.

The command “A” will append the next line inserted to all the existing lines.

The command “E” is used to save the lines to a text file and exit the editor.

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