WKOFFIT (What Kind Of File Format Is This)

NAME

wkoffit - Determines the type of a file

USAGE

kind = wkoffit(filename)

example:

integer kind,wkoffit

external wkoffit

kind = wkoffit('/data/somedirectory/datafile')

DESCRIPTION

Wkoffit reads the first few bytes of the file and tries to determine the type. Upon completion, wkoffit returns a integer code corresponding to the file type it has recognized. If the file type is unknown or the file is empty or non existent, a negative code will be returned. Note that the file does not have to be pre opened. Here is a list of the possible returned code:

		-3:	file does not exist
		-2:	empty file
		-1:	unknown file type
		 1:	RPN standard random 1989
		 2:	RPN standard sequential 1989
		 3:	RPN standard sequential FORTRAN 1989
		 4:	CCRN
		 5:	CCRN-RPN
		 6:	BURP
		 7:	GRIB
		 8:	BUFR
		 9:	BLOK
		10:	FORTRAN binary
		11:	COMPRESS
		12:	GIF89
		13:	GIF87
		14:	IRIS
		15:	JPG
		16:	KMW
		17:	PBM
		18:	PCL
		19:	PCX
		20:	PDSVICAR
		21:	PM
		22:	PPM
		23:	PS
		24:	KMW_
		25:	RRBX
		26:	SUNRAS
		27:	TIFF
		28:	UTAHRLE
		29:	XBM
		30:	XWD
		31:	ASCII
		32:	BMP
                33:     RPN standard random 1998
                34:     RPN standard sequential 1998

ARGUMENT

filename

Name of the file to analyzed (character string, max 256 characters).

AUTHORS

Mario Lépine, Vanh Souvanlasy , Eric Michaud

NOTES

Do not forget to declare wkoffit as an integer function, otherwise a 0 value will always be returned (which is not a valid returned code for wkoffit).

SEE ALSO

( r.filetype)