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Interactive Maple Debugger
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Description
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The interactive Maple Debugger can be invoked with the stopat, stopwhen, and stoperror commands, or by clicking the debug icon during a running computation.
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Debug icon with small toolbar icons visible:
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Debug icon with large toolbar icons visible:
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The Debugger is implemented as a Maple function, which is invoked automatically by Maple when a breakpoint or watchpoint is encountered, or when the DEBUG function is executed.
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If the interactive Maple Debugger was invoked by a breakpoint (as set by stopat), the displayed expression is the result of the last statement executed.
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If it was invoked by a watchpoint on a variable (as set by stopwhen), the expression is an equality, the left-hand side of which is the name of the variable that was being watched, and the right-hand side of which shows the value that was assigned to the variable.
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If it was invoked by a watchpoint on an error message (as set by stoperror), the expression is the error message.
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Interactive Debugger Window
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The interactive Maple Debugger window contains the following.
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A main text box that displays a procedure name and the Debugger output.
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A text box for entering commands and an associated Execute button.
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Buttons that perform common debugging functions.
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Button Descriptions
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The buttons at the bottom of the Debugger window perform common debugging functions. Most have an associated command.
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Step - Step into next statement.
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Next - Step into next statement on same nesting level.
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In To - Step into next statement sequence.
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Out From - Step out from statement sequence.
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Continue - Continue execution until the next breakpoint or watchpoint.
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Showstat - Display procedure.
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Help - View the ?debugger help page.
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Clear - Delete the contents of the top text box.
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Return - Return from procedure.
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Quit - Close the Debugger window.
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Copy - Copy debug contents to worksheet.
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Other Debugger Commands
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For information on other Debugger commands, see Commands. These commands can be entered in the text box next to the Execute button.
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Download Help Document
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