Yes, latest stable version of prolog 8.0.2 uses 'reloading'. Docs needs update.
directory Directory in which source
lives (absolute path) dialect Compatibility mode. See expects_dialect/1. file Similar to source, but
returns the file being included when called while an include file is
being processed (absolute path) module Module into which file is loaded reload true if the file is
being
reloaded. Not present on first load script Boolean that indicates whether the
file is loaded as a script file (see
-s) source File being loaded (absolute path).
If the system is processing an included file, the value is the main
file. Returns the original Prolog file when loading a
.qlf file. stream Stream identifier (see current_input/1) term_position Start position of last term
read. See also
stream_property/2
(position property and
stream_position_data/3.59Up
to version 7.1.22, the position term carried fake data except for the line_count
and had five arguments, where the position property of a stream
only has four. term Term being expanded by expand_term/2. variable_names A list of‘Name
= Var’of the last term read. See read_term/2
for details.
The directory is commonly used to add rules to file_search_path/2,
setting up a search path for finding files with absolute_file_name/3.
For example:
:- dynamic user:file_search_path/2.
:- multifile user:file_search_path/2.
:- prolog_load_context(directory, Dir),
asserta(user:file_search_path(my_program_home, Dir)).
...
absolute_file_name(my_program_home('README.TXT'), ReadMe,
[ access(read) ]),
...
prolog_load_context(reload, true) changing prolog_load_context(reloading, true) ?