| Class | Description | |
|---|---|---|
 | Argument | Represents a expression item argument. |
| ErrorInfo | Provides a information about error of evaluating or parsing. |
| ExpressionItem | Represents a expression item for a IExpressionLexer. |
| ScriptErrorInfo | Provides a information about error of evaluating or parsing. |
| Interface | Description | |
|---|---|---|
 | IEngine | Defines properties and methods of expression engine. |
| IExpressionLexer | Defines the lexical dictionary of expression engine. |
| Enumeration | Description | |
|---|---|---|
 | ErrorType | Specifies the type of error by ScriptErrorInfo. |
| ItemType | Determines the type of a ExpressionItem. |
