Update Processor as text editor

The cursor is the underline or block that moves around the screen when characters are typed.

When Update Processor is first entered it is in overtype mode. This means that characters typed overwrite the characters on the screen. Insert mode is used to insert new text just in front of the text beginning at the cursor. When text is entered in the insert mode, the following text is opened and shown on the next line until insert mode is exited or a cursor movement command is typed.

Update Processor uses a spelling checker to verify text as it is entered. The spelling checker looks at each character to see if those typed are a legitimate word or can become a legitimate word. Words used by the spelling checker are kept in the words file in the dm account. In order to activate the spelling checker, a Q-pointer must be present on the current account and an index must be generated on attribute 0 of the words file.

As text is deleted, the remaining characters in the paragraph are moved to the left. The cut and paste commands also delete text.

The search commands in Update Processor offer the capability to search for text, search for text and replace it, and search for text then determine whether or not to replace it.

Cut commands are used to move or copy data from one place in an item to another. Text may be cut and deleted, or cut leaving the original left in place. After the text is cut, it is placed in a cut buffer replacing the previous contents of the cut buffer. The cut text in the cut buffer may be pasted in the current document or it can be pasted in a specified item in a file. Text also may be pasted from a specified item and file.