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|Pack canny_tudor -- prolog/os/search_paths.pl|
Prepends Directory to the environment search path by Name, unless already present. Uses semi-colon as the search-path separator on Windows operating systems, or colon everywhere else. Adds Directory to the start of an existing path. Makes Directory the first and only directory element if the search path does not yet exist.
Note that Directory should be an operating-system compatible search path because non-Prolog software needs to search using the included directory paths. Automatically converts incoming directory paths to operating-system compatible paths.
Note also, the environment variable Name is case insensitive on Windows, but not so on Unix-based operating systems.