prolog-prompt-regexp

prolog-prompt-regexp is a variable defined in `prolog.el'.
Its value is

((eclipse "^[a-zA-Z0-9()]* *\\?- \\|^\\[[a-zA-Z]* [0-9]*\\]:")
 (sicstus "| [ ?][- ] *")
 (swi "^\\(\\[[a-zA-Z]*\\] \\)?[1-9]?[0-9]*[ ]?\\?- \\|^| +")
 (gnu "^| \\?-")
 (t "^|? *\\?-"))

Documentation:
Alist of prompts of the prolog system command line.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.