The following table provides summary descriptions of the AutoLISP symbol table and dictionary-handling functions.
| Symbol table and dictionary-handling functions | Platforms | |||||
|---|---|---|---|---|---|---|
| Windows | Mac OS | Web | ||||
| Function | Description | AutoCAD | AutoCAD LT | AutoCAD | AutoCAD LT | AutoCAD | 
| Adds a non-graphical object to the specified dictionary | ✓ | ✓ | ✓ | -- | ✓ | |
| Finds the next item in a dictionary | ✓ | ✓ | ✓ | -- | ✓ | |
| Removes an entry from the specified dictionary | ✓ | ✓ | ✓ | -- | ✓ | |
| Renames a dictionary entry | ✓ | ✓ | ✓ | -- | ✓ | |
| Searches a dictionary for an item | ✓ | ✓ | ✓ | -- | ✓ | |
| Returns a list of all paper space layouts in the current drawing | ✓ | ✓ | ✓ | -- | -- | |
| Returns the entity name of the current drawing's named object dictionary, which is the root of all non-graphical objects in the drawing | ✓ | ✓ | ✓ | -- | ✓ | |
| Establishes a view for a specified viewport | ✓ | ✓ | ✓ | -- | ✓ | |
| Checks the symbol table name for valid characters | ✓ | ✓ | ✓ | -- | ✓ | |
| Finds the next item in a symbol table | ✓ | ✓ | ✓ | -- | ✓ | |
| Returns the entity name of a specified symbol table entry | ✓ | ✓ | ✓ | -- | ✓ | |
| Searches a symbol table for a symbol name | ✓ | ✓ | ✓ | -- | ✓ | |
| Erases AutoLISP data from a drawing dictionary Note: Extended AutoLISP extension: requires 
						vl-load-com 
					  | ✓ | ✓ | -- | -- | -- | |
| Retrieves AutoLISP data from a drawing dictionary Note: Extended AutoLISP extension: requires 
						vl-load-com 
					  | ✓ | ✓ | -- | -- | -- | |
| Lists AutoLISP data in a drawing dictionary Note: Extended AutoLISP extension: requires 
						vl-load-com 
					  | ✓ | ✓ | -- | -- | -- | |
| Stores AutoLISP data in a drawing dictionary Note: Extended AutoLISP extension: requires 
						vl-load-com 
					  | ✓ | ✓ | -- | -- | -- | |
| Determines whether data can be saved over a session boundary Note: Extended AutoLISP extension: requires 
						vl-load-com 
					  | ✓ | ✓ | -- | -- | -- | |