"The prompt is right square brackets, the number indicating how many
recursive command loops you are in.
Any command may be uniquely abbreviated.
-The debugger rebinds various special variables for controlling i/o,
- sometimes to defaults (a la WITH-STANDARD-IO-SYNTAX) and sometimes to
- its own values, e.g. SB-DEBUG:*DEBUG-PRINT-LEVEL*.
+The debugger rebinds various special variables for controlling i/o, sometimes
+ to defaults (much like WITH-STANDARD-IO-SYNTAX does) and sometimes to
+ its own special values, e.g. SB-DEBUG:*DEBUG-PRINT-LEVEL*.
Debug commands do not affect * and friends, but evaluation in the debug loop
do affect these variables.
SB-DEBUG:*FLUSH-DEBUG-ERRORS* controls whether errors at the debug prompt