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The Lisp Debugger
The "Lisp debugger" provides you with the ability to suspend
evaluation of a form. While evaluation is suspended (a state that is
commonly known as a "break"), you may examine the run time stack,
examine the values of local or global variables, or change those values.
Since a break is a recursive edit, all the usual editing facilities of
Emacs are available; you can even run programs that will enter the
debugger recursively. Note: Recursive Editing.
- Error Debugging
- Entering the debugger when an error happens.
- Infinite Loops
- Stopping and debugging a program that doesn't exit.
- Function Debugging
- Entering it when a certain function is called.
- Explicit Debug
- Entering it at a certain point in the program.
- Using Debugger
- What the debugger does; what you see while in it.
- Debugger Commands
- Commands used while in the debugger.
- Invoking the Debugger
- How to call the function `debug'.
- Internals of Debugger
- Subroutines of the debugger, and global variables.
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