# Update processor overview

The Update processor (UP) is a dictionary-driven, full-screen
editor and data processor. Used with the Output processor, it operates
as a document processor.

The Update processor can be used to view, create, and
manipulate file items. The Update processor facilitates editing text,
dictionaries, programs, and data files (in D3, everything is an item
in a file). When used as a data processor, attribute-defining items
in the file's dictionary are employed to verify and translate data
as it is entered and retrieved.

FlashBASIC subroutines can be
called from dictionaries allowing absolute control of all data entry
using the Update processor and dictionaries. If no attribute-defining
items are specified, the Update processor functions as a full-screen
editor.

When invoked, the Update processor copies the specified
item to a workspace and displays as much of the item on the screen
as it can. The cursor is placed on the first character of the first
value of the first attribute of the item.

Once the item has
been loaded, any character you type overwrites the existing text.
Control key commands are used to perform editing functions. An automatic
wordwrap feature moves whole words to the next line as they are typed
when you overrun the end of the current line. An optional spelling
checker beeps when a character is typed that does not lead to a legal
word.

Update processor commands are formed by simultaneously
pressing the CTRL key and one of the alphabetic keys. Some Update
processor commands require entering more command characters, while
others require text input.

Text is normally entered in the insert
mode. CTRL+R is used to toggle between the insert and overtype modes.
When in the input mode, pressing CTRL+M creates a new attribute or
paragraph. When in the overtype mode, CTRL+M moves the cursor to the
next attribute. The default mode is overtype.

Changes made using
the Update processor have no effect on the actual item in the file
unless the changes are saved. Items can be exited at any time without
filing by typing CTRL+XE.

## See also

- [attribute-name](https://d3codex.com/attributedefiningitem/attribute-name/)
- [Conversion](https://d3codex.com/definitions/conversion/)
- [Cruising and zooming commands](https://d3codex.com/updateprocessor/cruising-and-zooming-commands/)
- [Cursor movement commands](https://d3codex.com/updateprocessor/cursor-movement-commands/)
- [Text editing and searching commands](https://d3codex.com/updateprocessor/text-editing-and-searching-commands/)
- [Dictionaries](https://d3codex.com/definitions/dictionaries/)
- [Cruising and zooming commands](https://d3codex.com/updateprocessor/cruising-and-zooming-commands/)
- [edit command (BASIC/FlashBASIC Debugger)](https://d3codex.com/flashbasicdebugger/edit-command-basic-flashbasic-debugger/)
- [Filing and exiting commands](https://d3codex.com/updateprocessor/filing-and-exiting-commands/)
- [Overtype and insert commands](https://d3codex.com/updateprocessor/overtype-and-insert-commands/)
- [paint command](https://d3codex.com/tcl/paint-command/)
- [Text editing and searching commands](https://d3codex.com/updateprocessor/text-editing-and-searching-commands/)
- [Spell checking commands](https://d3codex.com/updateprocessor/spell-checking-commands/)
- [update command](https://d3codex.com/tcl/update-command/)
- [Using the Update processor as a data processor](https://d3codex.com/updateprocessor/using-the-update-processor-as-a-data-processor/)
- [v (value limit) processing code](https://d3codex.com/processingcodes/v-value-limit-processing-code/)
- [view command](https://d3codex.com/tcl/view-command/)

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Source: https://d3codex.com/updateprocessor/update-processor-overview/ - part of the D3Codex reference.