Scripting Guide - SAS

60 Scripting Tools Chapter 4
Debug Scripts
Delete Breakpoints
Do one of the following:
• In the Debugger margin, click the breakpoint icon.
• In the Debugger margin, right-click the breakpoint icon and select Clear Breakpoint.
• On the Breakpoints tab, select the breakpoint and then click .
• On the Breakpoints tab, click to delete all breakpoints (not just the selected breakpoints).
The red breakpoint icon is removed, and the breakpoint no longer appears on the Breakpoints tab.
Disable and Enable Breakpoints
Disabling a breakpoint is helpful when you potentially fix a problem and then want to see whether the script
will run correctly past that breakpoint. You can then enable the breakpoint when necessary rather than
recreating it.
Do one of the following:
• In the Debugger margin, right-click the breakpoint icon and select Enable Breakpoint or Disable
Breakpoint.
• On the Breakpoints tab, select or deselect the breakpoint’s check box.
• On the Breakpoints tab, click to disable or enable all breakpoints.
A disabled breakpoint turns white; enabled breakpoints are shaded red.
Specify and Clear Conditional Expressions on Breakpoints
Setting a condition on a breakpoint is an alternative to single-stepping through code. Rather than
single-step and view the variables for each expression, you specify that the script break only when a
condition is met. Then you can step through the code and figure out where the problem arises.
Suppose that a calculation in your script is incorrect, and you suspect the problem occurs when i==19. Set
a conditional breakpoint for i==18. The Debugger will run until that condition is met, then you can step
through the code to identify the problem.
Specify a Breakpoint Condition
1. Right-click the breakpoint icon and select Edit Breakpoint.
2. On the Condition tab, select Condition and enter the conditional expression.
3. Specify whether to break when the expression Is true or Has Changed.
4. Click OK.
Disable or Enable a Condition
1. Right-click the breakpoint icon and select Edit Breakpoint.
2. On the Condition tab, deselect or select Condition.