Figure 26.9 Stepper Preferences
When reaching a function call you can use the Step Through Call command to step through the call into its definition. You can configure the Stepper to do this automatically, never do this or ask you which action to take.
Similarly when reaching a macro form you can macroexpand it (or not). You can configure the Stepper to macroexpand automatically, never macroexpand or ask you whether to macroexpand..
For a given symbol naming a function or macro, the action is determined by the preferences in the Operators tab. If the symbol is listed, then the corresponding action is taken. Otherwise, if the symbol's package is listed, then the corresponding action is taken. If neither the symbol nor its package are shown,. then the default action is taken.
For example, the default behavior on reaching your macro forms is to prompt for whether to macroexpand. To configure the Stepper such that macros defined in the CL-USER package are macroexpanded automatically, click the Add... button, enter CL-USER in the Name pane of the dialog, select Always in the Expand macros panel, click OK and click OK to dismiss the Preferences dialog.
To configure the Stepper such that it never steps through my-function , raise the Stepper preferences again, click the Add... button and select the Symbol radio button. Enter cl-user::my-function in the Name pane of the dialog, select Never in the Step through calls panel, click OK and click OK to dismiss the Preferences dialog.
LispWorks IDE User Guide (Windows version) - 25 Nov 2011
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