- read a (possibly) compressed dataset from a file
SYNOPSIS
DATASET *load_dataset
(filename)
ARGUMENTS
char
*filename
The name of the file to be read.
RETURNS
A pointer to a DATASET structure if all went well, NULL if an error
occured.
FUNCTION
This routine uses the find_full_fname function to expand the filename.
If the file is not found, the function returns NULL. If it is, the routine
looks whether the filename ends in .Z. If so, the fscanf_compressed_dataset
function is called; otherwise, the fscanf_dataset function is used.
NOTE
The zcat command must be available in the user's search path. Reading
compressed files does not work under Turbo-C / MS-DOS, since this combination
does not support pipes.
There may be a problem with portability using too long filenames. When
a network is written in compressed form, .Z is added to the filename.
If this filename already contains an extension, the file will not be
properly named under MS-DOS.
