print_message_lines(+Stream, +Severity, +Lines)
Print the Lines to Stream, preceding each line with a prefix corresponding to Severity.
stream_object, must be ground
Any valid output stream.
list of list of pair
Must be of the form
[Line1, Line2, …], where each
Linei must be of the form
If Severity is a valid severity, the prefix will be as described
print_message/2, otherwise Severity itself will be
used as the prefix. If Severity is
query, no newline is
written after the last line (otherwise, a newline is written).
This predicate is intended to be used in conjunction with
user:message_hook/3. After a message is intercepted using
user:message_hook/3, this command is used to print the lines.
If the hook has not been defined, the arguments are those provided by
Stream errors (see ref-iou-sfh-est), plus:
Suppose you want to intercept messages and force them to go to a different stream:
user:message_hook(Severity, Message, Lines):- my_stream(MyStream), print_message_lines(MyStream, Severity, Lines).