prolog:message_line

Documentation
- Reference manual
  - Built-in Predicates
    - Printing messages
- Packages

[semidet,multifile]prolog:message_line_element(+Stream, +Term)

Hook implementation that deals with ansi(+Attr, +Fmt, +Args) in message specifications.

prolog:message_line_element(+Stream, +Term)

This hook is called to print the individual elements of a message from print_message_lines/3. This hook is used by e.g., library library(ansi_term) to colour messages on ANSI-capable terminals.