:- multifile library_directory/1.
library_directory(
*DirSpec)
Defines a library directory. Used by predicates taking file_spec as input argument.
file_search_path
rule (see the reference page for
file_search_path/2
).
The dynamic, multifile library_directory/1
facts reside in module user.
They define directories to search when a file specification
library(
File)
is expanded to the full path.
There are a set of predefined library_directory/1
facts, but
users may also define their own libraries simply by asserting the
appropriate library_directory/1
facts into module user. To
locate a library file, the library_directory/1
facts are tried
one by one in the same sequence they appear in the Prolog database.
The file_search_path
mechanism is an extension of the
library_directory
scheme. See file_search_path/2
and
ref-fdi.
| ?- assert(library_directory('/usr/joe_bob/prolog/libs')). yes | ?- ensure_loaded(library(flying)). % loading file /usr/joe_bob/prolog/libs/flying.qof ...
absolute_file_name/[2,3]
,
assert/[1,2]
,
dynamic/1
,
file_search_path/2
,
listing/1
,
load_files/[1,2]
ref-fdi.