chickadee » files » make-pathname

make-pathname DIRECTORY FILENAME #!optional EXTENSIONprocedure
make-absolute-pathname DIRECTORY FILENAME #!optional EXTENSIONprocedure

Returns a string that names the file with the components DIRECTORY, FILENAME and (optionally) EXTENSION with SEPARATOR being the directory separation indicator (usually / on UNIX systems and \ on Windows, defaulting to whatever platform this is running on). DIRECTORY can be #f (meaning no directory component), a string or a list of strings. FILENAME and EXTENSION should be strings or #f. make-absolute-pathname returns always an absolute pathname.