The GAP 4 package `debugger’

This package provides some common features from debuggers.

At present, there are two main features:

• Breakpoints

• The function AddBreakpoint(filename, line) will force GAP to break when is reaches lines ‘line’ in file ‘filename.

• Controlling when to enter the break loop.
• Once in the break loop, function BreakNextLine will make GAP break on the next line. Users can also break on:
  • BreakNextEnterFunction, BreakEveryEnterFunction
  • BreakNextLeaveFunction, BreakEveryLeaveFunction
• Pretty print the state of variables
• ShowLocals prints the variables of the current function