/*
 * Copyright (C) 1998-2002 NCSA
 * For conditions of distribution and use, see the accompanying
 * COPYING file.
 *
 * Programmer:  Robb Matzke <matzke@llnl.gov>
 *              Monday, March 23, 1998
 */


/*
 * We include the private header file so we can get to the uniform
 * programming environment it declares.  Other than that, h5ls only calls
 * HDF5 API functions (except for H5G_basename())
 */
#include "H5private.h"
#include "h5tools.h"
#include "h5tools_utils.h"

/*
 * If defined then include the file name as part of the object name when
 * printing full object names. Otherwise leave the file name off.
 */
#define H5LS_PREPEND_FILENAME

/* Command-line switches */
static int verbose_g = 0;		/*lots of extra output		     */
static int width_g = 80;		/*output width in characters	     */
static hbool_t address_g = FALSE;	/*print raw data addresses	     */
static hbool_t data_g = FALSE;		/*display dataset values?	     */
static hbool_t label_g = FALSE;		/*label compound values?	     */
static hbool_t string_g = FALSE;	/*print 1-byte numbers as ASCII?     */
static hbool_t fullname_g = FALSE;	/*print full path names		     */
static hbool_t recursive_g = FALSE;	/*recursive descent listing	     */
static hbool_t grp_literal_g = FALSE;	/*list group, not contents	     */
static hbool_t hexdump_g = FALSE;	/*show data as raw hexadecimal	     */
static hbool_t show_errors_g = FALSE;	/*print HDF5 error messages	     */
static hbool_t simple_output_g = FALSE;	/*make output more machine-readable  */

/* Info to pass to the iteration functions */
typedef struct iter_t {
    const char	*container;		/*full name of the container object  */
} iter_t;

/* Table containing object id and object name */
static struct {
    int		nalloc;			/*number of slots allocated	     */
    int		nobjs;			/*number of objects		     */
    struct {
	unsigned long id[2];		/*object number			     */
	char	*name;			/*full object name		     */
    } *obj;
} idtab_g;

/* Information about how to display each type of object */
static struct dispatch_t {
    const char	*name;
    hid_t	(*open)(hid_t loc, const char *name);
    herr_t	(*close)(hid_t obj);
    herr_t	(*list1)(hid_t obj);
    herr_t	(*list2)(hid_t obj, const char *name);
} dispatch_g[H5G_NTYPES];

#define DISPATCH(TYPE,NAME,OPEN,CLOSE,LIST1,LIST2) {			      \
    dispatch_g[TYPE].name = (NAME);					      \
    dispatch_g[TYPE].open = (OPEN);					      \
    dispatch_g[TYPE].close = (CLOSE);					      \
    dispatch_g[TYPE].list1 = (LIST1);					      \
    dispatch_g[TYPE].list2 = (LIST2);					      \
}

static herr_t list (hid_t group, const char *name, void *cd);
static void display_type(hid_t type, int ind);
static char *fix_name(const char *path, const char *base);


/*-------------------------------------------------------------------------
 * Function:	usage
 *
 * Purpose:	Prints a usage message on stderr and then returns.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, July 16, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
usage (const char *progname)
{
    fprintf(stderr, "\
usage: %s [OPTIONS] [OBJECTS...]\n\
   OPTIONS\n\
      -h, -?, --help   Print a usage message and exit\n\
      -a, --address    Print addresses for raw data\n\
      -d, --data       Print the values of datasets\n\
      -e, --errors     Show all HDF5 error reporting\n\
      -f, --full       Print full path names instead of base names\n\
      -g, --group      Show information about a group, not its contents\n\
      -l, --label      Label members of compound datasets\n\
      -r, --recursive  List all groups recursively, avoiding cycles\n\
      -s, --string     Print 1-byte integer datasets as ASCII\n\
      -S, --simple     Use a machine-readable output format\n\
      -wN, --width=N   Set the number of columns of output\n\
      -v, --verbose    Generate more verbose output\n\
      -V, --version    Print version number and exit\n\
      -x, --hexdump    Show raw data in hexadecimal format\n\
\n\
   OBJECTS\n\
      Each object consists of an HDF5 file name optionally followed by a\n\
      slash and an object name within the file (if no object is specified\n\
      within the file then the contents of the root group are displayed).\n\
      The file name may include a printf(3C) integer format such as\n\
      \"%%05d\" to open a file family.\n",
	    progname);
}


/*-------------------------------------------------------------------------
 * Function:	sym_insert
 *
 * Purpose:	Add a symbol to the table.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, January 21, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
sym_insert(H5G_stat_t *sb, const char *name)
{
    int		n;

    /*
     * Don't add it if the link count is 1 because such an object can only
     * have one name.
     */
    if (sb->nlink<2) return;
    
    /* Extend the table */
    if (idtab_g.nobjs>=idtab_g.nalloc) {
	idtab_g.nalloc = MAX(256, 2*idtab_g.nalloc);
	idtab_g.obj = realloc(idtab_g.obj,
			      idtab_g.nalloc*sizeof(idtab_g.obj[0]));
    }

    /* Insert the entry */
    n = idtab_g.nobjs++;
    idtab_g.obj[n].id[0] = sb->objno[0];
    idtab_g.obj[n].id[1] = sb->objno[1];
    idtab_g.obj[n].name = malloc(strlen(name)+1);
    strcpy(idtab_g.obj[n].name, name);
}


/*-------------------------------------------------------------------------
 * Function:	sym_lookup
 *
 * Purpose:	Find another name for the specified object.
 *
 * Return:	Success:	Ptr to another name.
 *
 *		Failure:	NULL
 *
 * Programmer:	Robb Matzke
 *              Thursday, January 21, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static char *
sym_lookup(H5G_stat_t *sb)
{
    int		n;
    
    if (sb->nlink<2) return NULL; /*only one name possible*/
    for (n=0; n<idtab_g.nobjs; n++) {
	if (idtab_g.obj[n].id[0]==sb->objno[0] &&
	    idtab_g.obj[n].id[1]==sb->objno[1]) {
	    return idtab_g.obj[n].name;
	}
    }
    return NULL;
}


/*-------------------------------------------------------------------------
 * Function:	display_string
 *
 * Purpose:	Print a string value by escaping unusual characters. If
 *		STREAM is null then we only count how large the output would
 *		be.
 *
 * Return:	Number of characters printed.
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
display_string(FILE *stream, const char *s, hbool_t escape_spaces)
{
    int		nprint=0;
    
    for (/*void*/; s && *s; s++) {
	switch (*s) {
	case '"':
	    if (stream) fprintf(stream, "\\\"");
	    nprint += 2;
	    break;
	case '\\':
	    if (stream) fprintf(stream, "\\\\");
	    nprint += 2;
	    break;
	case '\b':
	    if (stream) fprintf(stream, "\\b");
	    nprint += 2;
	    break;
	case '\f':
	    if (stream) fprintf(stream, "\\f");
	    nprint += 2;
	    break;
	case '\n':
	    if (stream) fprintf(stream, "\\n");
	    nprint += 2;
	    break;
	case '\r':
	    if (stream) fprintf(stream, "\\r");
	    nprint += 2;
	    break;
	case '\t':
	    if (stream) fprintf(stream, "\\t");
	    nprint += 2;
	    break;
	case ' ':
	    if (escape_spaces) {
		if (stream) fprintf(stream, "\\ ");
		nprint += 2;
	    } else {
		if (stream) fprintf(stream, " ");
		nprint++;
	    }
	    break;
	default:
	    if (isprint((int)*s)) {
		if (stream) putc(*s, stream);
		nprint++;
	    } else {
		if (stream) {
		    fprintf(stream, "\\%03o", *((const unsigned char*)s));
		}
		nprint += 4;
	    }
	    break;
	}
    }
    return nprint;
}


/*-------------------------------------------------------------------------
 * Function:	display_native_type
 *
 * Purpose:	Prints the name of a native C data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed.
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 * 		Robb Matzke, 1999-06-11
 *		Added the C9x types, but we still prefer to display the types
 *		from the C language itself (like `int' vs. `int32_t').
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_native_type(hid_t type, int UNUSED ind)
{
    if (H5Tequal(type, H5T_NATIVE_SCHAR)) {
	printf("native signed char");
    } else if (H5Tequal(type, H5T_NATIVE_UCHAR)) {
	printf("native unsigned char");
    } else if (H5Tequal(type, H5T_NATIVE_INT)) {
	printf("native int");
    } else if (H5Tequal(type, H5T_NATIVE_UINT)) {
	printf("native unsigned int");
    } else if (H5Tequal(type, H5T_NATIVE_SHORT)) {
	printf("native short");
    } else if (H5Tequal(type, H5T_NATIVE_USHORT)) {
	printf("native unsigned short");
    } else if (H5Tequal(type, H5T_NATIVE_LONG)) {
	printf("native long");
    } else if (H5Tequal(type, H5T_NATIVE_ULONG)) {
	printf("native unsigned long");
    } else if (H5Tequal(type, H5T_NATIVE_LLONG)) {
	printf("native long long");
    } else if (H5Tequal(type, H5T_NATIVE_ULLONG)) {
	printf("native unsigned long long");
    } else if (H5Tequal(type, H5T_NATIVE_FLOAT)) {
	printf("native float");
    } else if (H5Tequal(type, H5T_NATIVE_DOUBLE)) {
	printf("native double");
    } else if (H5Tequal(type, H5T_NATIVE_LDOUBLE)) {
	printf("native long double");
    } else if (H5Tequal(type, H5T_NATIVE_INT8)) {
	printf("native int8_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT8)) {
	printf("native uint8_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT16)) {
	printf("native int16_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT16)) {
	printf("native uint16_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT32)) {
	printf("native int32_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT32)) {
	printf("native uint32_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT64)) {
	printf("native int64_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT64)) {
	printf("native uint64_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_LEAST8)) {
	printf("native int_least8_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_LEAST8)) {
	printf("native uint_least8_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_LEAST16)) {
	printf("native int_least16_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_LEAST16)) {
	printf("native uint_least16_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_LEAST32)) {
	printf("native int_least32_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_LEAST32)) {
	printf("native uint_least32_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_LEAST64)) {
	printf("native int_least64_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_LEAST64)) {
	printf("native uint_least64_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_FAST8)) {
	printf("native int_fast8_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_FAST8)) {
	printf("native uint_fast8_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_FAST16)) {
	printf("native int_fast16_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_FAST16)) {
	printf("native uint_fast16_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_FAST32)) {
	printf("native int_fast32_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_FAST32)) {
	printf("native uint_fast32_t");
    } else if (H5Tequal(type, H5T_NATIVE_INT_FAST64)) {
	printf("native int_fast64_t");
    } else if (H5Tequal(type, H5T_NATIVE_UINT_FAST64)) {
	printf("native uint_fast64_t");
    } else if (H5Tequal(type, H5T_NATIVE_B8)) {
	printf("native 8-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B16)) {
	printf("native 16-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B32)) {
	printf("native 32-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B64)) {
	printf("native 64-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_HSIZE)) {
	printf("native hsize_t");
    } else if (H5Tequal(type, H5T_NATIVE_HSSIZE)) {
	printf("native hssize_t");
    } else if (H5Tequal(type, H5T_NATIVE_HERR)) {
	printf("native herr_t");
    } else if (H5Tequal(type, H5T_NATIVE_HBOOL)) {
	printf("native hbool_t");
    } else {
	return FALSE;
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_ieee_type
 *
 * Purpose:	Print the name of an IEEE floating-point data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_ieee_type(hid_t type, int UNUSED ind)
{
    if (H5Tequal(type, H5T_IEEE_F32BE)) {
	printf("IEEE 32-bit big-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F32LE)) {
	printf("IEEE 32-bit little-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F64BE)) {
	printf("IEEE 64-bit big-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F64LE)) {
	printf("IEEE 64-bit little-endian float");
    } else {
	return FALSE;
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_precision
 *
 * Purpose:	Prints information on the next line about precision and
 *		padding if the precision is less than the total data type
 *		size.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
display_precision(hid_t type, int ind)
{
    size_t		prec;		/*precision			*/
    H5T_pad_t		plsb, pmsb;	/*lsb and msb padding		*/
    const char		*plsb_s=NULL;	/*lsb padding string		*/
    const char		*pmsb_s=NULL;	/*msb padding string		*/
    size_t		nbits;		/*number of bits		*/

    /*
     * If the precision is less than the total size then show the precision
     * and offset on the following line.  Also display the padding
     * information.
     */
    if (8*H5Tget_size(type)!=(prec=H5Tget_precision(type))) {
	printf("\n%*s(%lu bit%s of precision beginning at bit %lu)",
	       ind, "", (unsigned long)prec, 1==prec?"":"s",
	       (unsigned long)H5Tget_offset(type));

	H5Tget_pad(type, &plsb, &pmsb);
	if (H5Tget_offset(type)>0) {
	    switch (plsb) {
	    case H5T_PAD_ZERO:
		plsb_s = "zero";
		break;
	    case H5T_PAD_ONE:
		plsb_s = "one";
		break;
	    case H5T_PAD_BACKGROUND:
		plsb_s = "bkg";
		break;
	    case H5T_PAD_ERROR:
	    case H5T_NPAD:
		plsb_s = "unknown";
		break;
	    }
	}
	if (H5Tget_offset(type)+prec<8*H5Tget_size(type)) {
	    switch (pmsb) {
	    case H5T_PAD_ZERO:
		pmsb_s = "zero";
		break;
	    case H5T_PAD_ONE:
		pmsb_s = "one";
		break;
	    case H5T_PAD_BACKGROUND:
		pmsb_s = "bkg";
		break;
	    case H5T_PAD_ERROR:
	    case H5T_NPAD:
		pmsb_s = "unknown";
		break;
	    }
	}
	if (plsb_s || pmsb_s) {
	    printf("\n%*s(", ind, "");
	    if (plsb_s) {
		nbits = H5Tget_offset(type);
		printf("%lu %s bit%s at bit 0",
		       (unsigned long)nbits, plsb_s, 1==nbits?"":"s");
	    }
	    if (plsb_s && pmsb_s) printf(", ");
	    if (pmsb_s) {
		nbits = 8*H5Tget_size(type)-(H5Tget_offset(type)+prec);
		printf("%lu %s bit%s at bit %lu",
		       (unsigned long)nbits, pmsb_s, 1==nbits?"":"s",
		       (unsigned long)(8*H5Tget_size(type)-nbits));
	    }
	    printf(")");
	}
    }
}


/*-------------------------------------------------------------------------
 * Function:	display_int_type
 *
 * Purpose:	Print the name of an integer data type.  Common information
 *		like number of bits, byte order, and sign scheme appear on
 *		the first line. Additional information might appear in
 *		parentheses on the following lines.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_int_type(hid_t type, int ind)
{
    H5T_order_t		order;		/*byte order value		*/
    const char 		*order_s=NULL;	/*byte order string		*/
    H5T_sign_t		sign;		/*sign scheme value		*/
    const char		*sign_s=NULL;	/*sign scheme string		*/
    
    if (H5T_INTEGER!=H5Tget_class(type)) return FALSE;
    
    /* Byte order */
    if (H5Tget_size(type)>1) {
	order = H5Tget_order(type);
	if (H5T_ORDER_LE==order) {
	    order_s = " little-endian";
	} else if (H5T_ORDER_BE==order) {
	    order_s = " big-endian";
	} else if (H5T_ORDER_VAX==order) {
	    order_s = " mixed-endian";
	} else {
	    order_s = " unknown-byte-order";
	}
    } else {
	order_s = "";
    }

    /* Sign */
    if ((sign=H5Tget_sign(type))>=0) {
	if (H5T_SGN_NONE==sign) {
	    sign_s = " unsigned";
	} else if (H5T_SGN_2==sign) {
	    sign_s = "";
	} else {
	    sign_s = " unknown-sign";
	}
    } else {
	sign_s = " unknown-sign";
    }
    
    /*
     * Print size, order, and sign on first line, precision and padding
     * information on the subsequent lines
     */
    printf("%lu-bit%s%s integer",
	   (unsigned long)(8*H5Tget_size(type)), order_s, sign_s);
    display_precision(type, ind);
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_float_type
 *
 * Purpose:	Print info about a floating point data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_float_type(hid_t type, int ind)
{
    H5T_order_t		order;		/*byte order value		*/
    const char 		*order_s=NULL;	/*byte order string		*/
    size_t		spos;		/*sign bit position		*/
    size_t		esize, epos;	/*exponent size and position	*/
    size_t		msize, mpos;	/*significand size and position	*/
    size_t		ebias;		/*exponent bias			*/
    H5T_norm_t		norm;		/*significand normalization	*/
    const char		*norm_s=NULL;	/*normalization string		*/
    H5T_pad_t		pad;		/*internal padding value	*/
    const char		*pad_s=NULL;	/*internal padding string	*/
    
    if (H5T_FLOAT!=H5Tget_class(type)) return FALSE;
    
    /* Byte order */
    if (H5Tget_size(type)>1) {
	order = H5Tget_order(type);
	if (H5T_ORDER_LE==order) {
	    order_s = " little-endian";
	} else if (H5T_ORDER_BE==order) {
	    order_s = " big-endian";
	} else if (H5T_ORDER_VAX==order) {
	    order_s = " mixed-endian";
	} else {
	    order_s = " unknown-byte-order";
	}
    } else {
	order_s = "";
    }

    /*
     * Print size and byte order on first line, precision and padding on
     * subsequent lines.
     */
    printf("%lu-bit%s floating-point",
	   (unsigned long)(8*H5Tget_size(type)), order_s);
    display_precision(type, ind);

    /* Print sizes, locations, and other information about each field */
    H5Tget_fields (type, &spos, &epos, &esize, &mpos, &msize);
    ebias = H5Tget_ebias(type);
    norm = H5Tget_norm(type);
    switch (norm) {
    case H5T_NORM_IMPLIED:
	norm_s = ", msb implied";
	break;
    case H5T_NORM_MSBSET:
	norm_s = ", msb always set";
	break;
    case H5T_NORM_NONE:
	norm_s = ", no normalization";
	break;
    case H5T_NORM_ERROR:
	norm_s = ", unknown normalization";
	break;
    }
    printf("\n%*s(significant for %lu bit%s at bit %lu%s)", ind, "", 
	   (unsigned long)msize, 1==msize?"":"s", (unsigned long)mpos,
	   norm_s);
    printf("\n%*s(exponent for %lu bit%s at bit %lu, bias is 0x%lx)",
	   ind, "", (unsigned long)esize, 1==esize?"":"s",
	   (unsigned long)epos, (unsigned long)ebias);
    printf("\n%*s(sign bit at %lu)", ind, "", (unsigned long)spos);

    /* Display internal padding */
    if (1+esize+msize<H5Tget_precision(type)) {
	pad = H5Tget_inpad(type);
	switch (pad) {
	case H5T_PAD_ZERO:
	    pad_s = "zero";
	    break;
	case H5T_PAD_ONE:
	    pad_s = "one";
	    break;
	case H5T_PAD_BACKGROUND:
	    pad_s = "bkg";
	    break;
	case H5T_PAD_ERROR:
	case H5T_NPAD:
	    pad_s = "unknown";
	    break;
	}
	printf("\n%*s(internal padding bits are %s)", ind, "", pad_s);
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_cmpd_type
 *
 * Purpose:	Print info about a compound data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_cmpd_type(hid_t type, int ind)
{
    char	*name=NULL;	/*member name				*/
    size_t	size;		/*total size of type in bytes		*/
    hid_t	subtype;	/*member data type			*/
    int		i, j, n;	/*miscellaneous counters		*/
    
    
    if (H5T_COMPOUND!=H5Tget_class(type)) return FALSE;
    printf("struct {");
    for (i=0; i<H5Tget_nmembers(type); i++) {

        /* Name and offset */
        name = H5Tget_member_name(type, i);
        printf("\n%*s\"", ind+4, "");
        n = display_string(stdout, name, FALSE);
        printf("\"%*s +%-4lu ", MAX(0, 16-n), "",
               (unsigned long)H5Tget_member_offset(type, i));
        free(name);

        /* Member's type */
        subtype = H5Tget_member_type(type, i);
        display_type(subtype, ind+4);
        H5Tclose(subtype);
    }
    size = H5Tget_size(type);
    printf("\n%*s} %lu byte%s",
	   ind, "", (unsigned long)size, 1==size?"":"s");
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_enum_type
 *
 * Purpose:	Print info about an enumeration data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Wednesday, December 23, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_enum_type(hid_t type, int ind)
{
    char	**name=NULL;	/*member names				*/
    unsigned char *value=NULL;	/*value array				*/
    int		nmembs;		/*number of members			*/
    int		nchars;		/*number of output characters		*/
    hid_t	super;		/*enum base integer type		*/
    hid_t	native=-1;	/*native integer data type		*/
    size_t	dst_size;	/*destination value type size		*/
    int		i;		/*miscellaneous counters		*/
    size_t	j;
        
    if (H5T_ENUM!=H5Tget_class(type)) return FALSE;
    nmembs = H5Tget_nmembers(type);
    super = H5Tget_super(type);
    printf("enum ");
    display_type(super, ind+4);
    printf(" {");
    
    /*
     * Determine what data type to use for the native values.  To simplify
     * things we entertain three possibilities:
     *  1. long_long -- the largest native signed integer
     *	2. unsigned long_long -- the largest native unsigned integer
     *	3. raw format
     */
    if (H5Tget_size(type)<=sizeof(long_long)) {
	dst_size = sizeof(long_long);
	if (H5T_SGN_NONE==H5Tget_sign(type)) {
	    native = H5T_NATIVE_ULLONG;
	} else {
	    native = H5T_NATIVE_LLONG;
	}
    } else {
	dst_size = H5Tget_size(type);
    }

    /* Get the names and raw values of all members */
    assert(nmembs>0);
    name = calloc((size_t)nmembs, sizeof(char*));
    value = calloc((size_t)nmembs, MAX(H5Tget_size(type), dst_size));
    for (i=0; i<nmembs; i++) {
	name[i] = H5Tget_member_name(type, i);
	H5Tget_member_value(type, i, value+i*H5Tget_size(type));
    }

    /* Convert values to native data type */
    if (native>0) H5Tconvert(super, native, (hsize_t)nmembs, value, NULL, H5P_DEFAULT);

    /* Sort members by increasing value */
    /*not implemented yet*/

    /* Print members */
    for (i=0; i<nmembs; i++) {
	printf("\n%*s", ind+4, "");
	nchars = display_string(stdout, name[i], TRUE);
	printf("%*s = ", MAX(0, 16-nchars), "");

	if (native<0) {
	    printf("0x");
	    for (j=0; j<dst_size; j++) {
		printf("%02x", value[i*dst_size+j]);
	    }
	} else if (H5T_SGN_NONE==H5Tget_sign(native)) {
	    HDfprintf(stdout,"%"PRINTF_LL_WIDTH"u",
		   *((unsigned long_long*)((void*)(value+i*dst_size))));
	} else {
	    HDfprintf(stdout,"%"PRINTF_LL_WIDTH"d",
		   *((long_long*)((void*)(value+i*dst_size))));
	}
    }

    /* Release resources */
    for (i=0; i<nmembs; i++) free(name[i]);
    free(name);
    free(value);
    H5Tclose(super);

    if (0==nmembs) printf("\n%*s <empty>", ind+4, "");
    printf("\n%*s}", ind, "");
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_string_type
 *
 * Purpose:	Print information about a string data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_string_type(hid_t type, int UNUSED ind)
{
    H5T_str_t		pad;
    const char		*pad_s=NULL;
    H5T_cset_t		cset;
    const char		*cset_s=NULL;
    
    if (H5T_STRING!=H5Tget_class(type)) return FALSE;

    /* Padding */
    pad = H5Tget_strpad(type);
    switch (pad) {
    case H5T_STR_NULLTERM:
	pad_s = "null-terminated";
	break;
    case H5T_STR_NULLPAD:
	pad_s = "null-padded";
	break;
    case H5T_STR_SPACEPAD:
	pad_s = "space-padded";
	break;
    case H5T_STR_RESERVED_3:
    case H5T_STR_RESERVED_4:
    case H5T_STR_RESERVED_5:
    case H5T_STR_RESERVED_6:
    case H5T_STR_RESERVED_7:
    case H5T_STR_RESERVED_8:
    case H5T_STR_RESERVED_9:
    case H5T_STR_RESERVED_10:
    case H5T_STR_RESERVED_11:
    case H5T_STR_RESERVED_12:
    case H5T_STR_RESERVED_13:
    case H5T_STR_RESERVED_14:
    case H5T_STR_RESERVED_15:
    case H5T_STR_ERROR:
	pad_s = "unknown-format";
	break;
    }

    /* Character set */
    cset = H5Tget_cset(type);
    switch (cset) {
    case H5T_CSET_ASCII:
	cset_s = "ASCII";
	break;
    case H5T_CSET_RESERVED_1:
    case H5T_CSET_RESERVED_2:
    case H5T_CSET_RESERVED_3:
    case H5T_CSET_RESERVED_4:
    case H5T_CSET_RESERVED_5:
    case H5T_CSET_RESERVED_6:
    case H5T_CSET_RESERVED_7:
    case H5T_CSET_RESERVED_8:
    case H5T_CSET_RESERVED_9:
    case H5T_CSET_RESERVED_10:
    case H5T_CSET_RESERVED_11:
    case H5T_CSET_RESERVED_12:
    case H5T_CSET_RESERVED_13:
    case H5T_CSET_RESERVED_14:
    case H5T_CSET_RESERVED_15:
    case H5T_CSET_ERROR:
	cset_s = "unknown-character-set";
	break;
    }

    printf("%lu-byte %s %s string",
	   (unsigned long)H5Tget_size(type), pad_s, cset_s);
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_reference_type
 *
 * Purpose:	Prints information about a reference data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 * 		Robb Matzke, 1999-06-04
 *		Knows about object and dataset region references.
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_reference_type(hid_t type, int UNUSED ind)
{
    if (H5T_REFERENCE!=H5Tget_class(type)) return FALSE;

    if (H5Tequal(type, H5T_STD_REF_OBJ)) {
	printf("object reference");
    } else if (H5Tequal(type, H5T_STD_REF_DSETREG)) {
	printf("dataset region reference");
    } else {
	printf("%lu-byte unknown reference",
	       (unsigned long)H5Tget_size(type));
    }
    
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_opaque_type
 *
 * Purpose:	Prints information about an opaque data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Monday, June  7, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_opaque_type(hid_t type, int ind)
{
    char	*tag;
    size_t	size;
    
    if (H5T_OPAQUE!=H5Tget_class(type)) return FALSE;

    size = H5Tget_size(type);
    printf("%lu-byte opaque type", (unsigned long)size);
    if ((tag=H5Tget_tag(type))) {
	printf("\n%*s(tag = \"", ind, "");
	display_string(stdout, tag, FALSE);
	printf("\")");
	free(tag);
    }
    return TRUE;
}

/*-------------------------------------------------------------------------
 * Function:    display_vlen_type
 *
 * Purpose:     Print information about a variable-length type
 *
 * Return:      Success:        TRUE
 *
 *              Failure:        FALSE
 *
 * Programmer:  Robb Matzke
 *              Friday, December  1, 2000
 *
 * Modifications:
 *-------------------------------------------------------------------------
 */
static hbool_t
display_vlen_type(hid_t type, int ind)
{
    hid_t       super;
    
    if (H5T_VLEN!=H5Tget_class(type)) return FALSE;

    printf("variable length of\n%*s", ind+4, "");
    super = H5Tget_super(type);
    display_type(super, ind+4);
    H5Tclose(super);
    return TRUE;
}

/*---------------------------------------------------------------------------
 * Purpose:     Print information about an array type
 *
 * Return:      Success:        TRUE
 *
 *              Failure:        FALSE
 *
 * Programmer:  Robb Matzke
 *              Thursday, January 31, 2002
 *
 * Modifications:
 *---------------------------------------------------------------------------
 */
static hbool_t
display_array_type(hid_t type, int ind)
{
    hid_t       super;
    int         ndims, i, *perm=NULL, identity;
    hsize_t     *dims=NULL;

    if (H5T_ARRAY!=H5Tget_class(type)) return FALSE;
    ndims = H5Tget_array_ndims(type);
    if (ndims) {
        dims = malloc(ndims*sizeof(dims[0]));
        perm = malloc(ndims*sizeof(perm[0]));
        H5Tget_array_dims(type, dims, perm);

        /* Print dimensions */
        for (i=0; i<ndims; i++)
            HDfprintf(stdout, "%s%Hu" , i?",":"[", dims[i]);
        putchar(']');

        /* Print permutation vector if not identity */
        for (i=0, identity=TRUE; identity && i<ndims; i++) {
            if (i!=perm[i]) identity = FALSE;
        }
        if (!identity) {
            fputs(" perm=[", stdout);
            for (i=0; i<ndims; i++)
                HDfprintf(stdout, "%s%d", i?",":"", perm[i]);
            putchar(']');
        }

        free(dims);
        free(perm);
    } else {
        fputs(" [SCALAR]", stdout);
    }
    

    /* Print parent type */
    putchar(' ');
    super = H5Tget_super(type);
    display_type(super, ind+4);
    H5Tclose(super);
    return TRUE;
}
            

/*-------------------------------------------------------------------------
 * Function:	display_type
 *
 * Purpose:	Prints a data type definition.  The definition is printed
 *		without any leading space or trailing line-feed (although
 *		there might be line-feeds inside the type definition).  The
 *		first line is assumed to have IND characters before it on
 *		the same line (printed by the caller).
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 * 		Robb Matzke, 1999-06-11
 *		Prints the OID of shared data types.
 *
 *-------------------------------------------------------------------------
 */
static void
display_type(hid_t type, int ind)
{
    H5T_class_t		data_class = H5Tget_class(type);
    H5G_stat_t		sb;
    
    /* Bad data type */
    if (type<0) {
	printf("<ERROR>");
	return;
    }

    /* Shared? If so then print the type's OID */
    if (H5Tcommitted(type)) {
	if (H5Gget_objinfo(type, ".", FALSE, &sb)>=0) {
	    printf("shared-%lu:%lu:%lu:%lu ",
		   sb.fileno[1], sb.fileno[0],
		   sb.objno[1], sb.objno[0]);
	} else {
	    printf("shared ");
	}
    }
    
    /* Print the type */
    if (display_native_type(type, ind) ||
	display_ieee_type(type, ind) ||
	display_int_type(type, ind) ||
	display_float_type(type, ind) ||
	display_cmpd_type(type, ind) ||
	display_enum_type(type, ind) ||
	display_string_type(type, ind) ||
	display_reference_type(type, ind) ||
        display_vlen_type(type, ind) ||
        display_array_type(type, ind) ||
	display_opaque_type(type, ind)) {
	return;
    }

    /* Unknown type */
    printf("%lu-byte class-%u unknown",
	   (unsigned long)H5Tget_size(type),
	   (unsigned)data_class);
}


/*-------------------------------------------------------------------------
 * Function:	dump_dataset_values
 *
 * Purpose:	Prints all values of a dataset.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Tuesday, July 21, 1998
 *
 * Modifications:
 *		Robb Matzke, 1999-09-27
 *		Understands the simple_output_g switch which causes data to
 *		be displayed in a more machine-readable format.
 *-------------------------------------------------------------------------
 */
static void
dump_dataset_values(hid_t dset)
{
    hid_t		f_type = H5Dget_type(dset);
    size_t		size = H5Tget_size(f_type);
    h5dump_t		info;
    char		string_prefix[64];
    static char         fmt_double[16], fmt_float[16];
	
    /* Set to all default values and then override */
    memset(&info, 0, sizeof info);

    if (simple_output_g) {
	info.idx_fmt = "";
	info.line_ncols = 65535; /*something big*/
	info.line_per_line = 1;
	info.line_multi_new = 0;
	info.line_pre  = "        ";
	info.line_cont = "         ";
	
	info.arr_pre = "";
	info.arr_suf = "";
	info.arr_sep = " ";

	info.cmpd_pre = "";
	info.cmpd_suf = "";
	info.cmpd_sep = " ";

	if (label_g) info.cmpd_name = "%s=";
	
	info.elmt_suf1 = " ";
	info.str_locale = ESCAPE_HTML;
	
    } else {
	info.idx_fmt = "(%s)";
	info.line_ncols = width_g;
	info.line_multi_new = 1;
	if (label_g) info.cmpd_name = "%s=";
	info.line_pre  = "        %s ";
	info.line_cont = "        %s  ";
	info.str_repeat = 8;
    }

    /* Floating point types should display full precision */
    sprintf(fmt_float, "%%1.%dg", FLT_DIG);
    info.fmt_float = fmt_float;
    sprintf(fmt_double, "%%1.%dg", DBL_DIG);
    info.fmt_double = fmt_double;

    info.dset_format =  "DSET-%lu:%lu:%lu:%lu-";
    info.dset_hidefileno = 0;
    
    info.obj_format = "-%lu:%lu:%lu:%lu";
    info.obj_hidefileno = 0;
    
    info.dset_blockformat_pre = "%sBlk%lu: ";
    info.dset_ptformat_pre = "%sPt%lu: ";
    
    info.line_indent = "";
    
    if (hexdump_g) {
	/*
	 * Print all data in hexadecimal format if the `-x' or `--hexdump'
	 * command line switch was given.
	 */
	info.raw = TRUE;
    } else if (string_g && 1==size && H5T_INTEGER==H5Tget_class(f_type)) {
	/*
	 * Print 1-byte integer data as an ASCI character string instead of
	 * integers if the `-s' or `--string' command-line option was given.
	 */
	info.ascii = TRUE;
	info.elmt_suf1 = "";
	info.elmt_suf2 = "";
	strcpy(string_prefix, info.line_pre);
	strcat(string_prefix, "\"");
	info.line_pre = string_prefix;
	info.line_suf = "\"";
    }
    
    /*
     * Print all the values.
     */
    printf("    Data:\n");
    if (h5tools_dump_dset(stdout, &info, dset, -1, NULL, -1) < 0) {
	printf("        Unable to print data.\n");
    }

    H5Tclose(f_type);
}


/*-------------------------------------------------------------------------
 * Function:	list_attr
 *
 * Purpose:	Prints information about attributes.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Friday, June  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
list_attr (hid_t obj, const char *attr_name, void * UNUSED op_data)
{
    hid_t	attr, space, type, p_type;
    hsize_t	size[64], nelmts=1;
    int		ndims, i, n;
    size_t	need;
    hsize_t     temp_need;
    void	*buf;
    h5dump_t	info;

    printf("    Attribute: ");
    n = display_string(stdout, attr_name, TRUE);
    printf("%*s", MAX(0, 9-n), "");
    if ((attr = H5Aopen_name(obj, attr_name))) {
	space = H5Aget_space(attr);
	type = H5Aget_type(attr);

	/* Data space */
	ndims = H5Sget_simple_extent_dims(space, size, NULL);
	if (0==ndims) {
	    puts(" scalar");
	} else {
	    printf(" {");
	    for (i=0; i<ndims; i++) {
		HDfprintf(stdout, "%s%Hu", i?", ":"", size[i]);
		nelmts *= size[i];
	    }
	    puts("}");
	}

	/* Data type */
	printf("        Type:      ");
	display_type(type, 15);
	putchar('\n');

	/* Data */
	memset(&info, 0, sizeof info);
	info.line_multi_new = 1;
	if (nelmts<5) {
	    info.idx_fmt = "";
	    info.line_1st  = "        Data:  ";
	    info.line_pre  = "               ";
	    info.line_cont = "                ";
	    info.str_repeat = 8;
	    
	} else {
	    printf("        Data:\n");
	    info.idx_fmt = "(%s)";
	    info.line_pre  = "            %s ";
	    info.line_cont = "            %s  ";
	    info.str_repeat = 8;
	}
	info.line_ncols = width_g;
	if (label_g) info.cmpd_name = "%s=";
	if (string_g && 1==H5Tget_size(type) &&
	    H5T_INTEGER==H5Tget_class(type)) {
	    info.ascii = TRUE;
	    info.elmt_suf1 = "";
	    info.elmt_suf2 = "";
	    info.idx_fmt  = "(%s)";
	    info.line_pre = "            %s \"";
	    info.line_suf = "\"";
	}
	if (hexdump_g) {
	    p_type = H5Tcopy(type);
	} else {
	    p_type = h5tools_fixtype(type);
	}
	if (p_type>=0) {
            temp_need= nelmts * MAX(H5Tget_size(type), H5Tget_size(p_type));
            assert(temp_need==(hsize_t)((size_t)temp_need));
            need = (size_t)temp_need;
	    buf = malloc(need);
	    assert(buf);
	    if (H5Aread(attr, p_type, buf)>=0) {
		h5tools_dump_mem(stdout, &info, attr, p_type, space, buf, -1);
	    }
	    free(buf);
	    H5Tclose(p_type); 
	}
	    
	H5Sclose(space);
	H5Tclose(type);
	H5Aclose(attr);
    } else {
	putchar('\n');
    }
    
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	dataset_list1
 *
 * Purpose:	List information about a dataset which should appear on the
 *		same line as the dataset name.  This information will precede
 *		information which is applicable to all objects which will be
 *		printed by the caller.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
dataset_list1(hid_t dset)
{
    hsize_t		cur_size[64];	/*current dataset dimensions	*/
    hsize_t		max_size[64];	/*maximum dataset dimensions	*/
    hid_t		space;		/*data space			*/
    int 		ndims;		/*dimensionality		*/
    int			i;

    /*
     * Information that goes on the same row as the name.  The name has
     * already been printed.
     */
    space = H5Dget_space(dset);
    ndims = H5Sget_simple_extent_dims(space, cur_size, max_size);
    printf (" {");
    for (i=0; i<ndims; i++) {
	HDfprintf (stdout, "%s%Hu", i?", ":"", cur_size[i]);
	if (max_size[i]==H5S_UNLIMITED) {
	    HDfprintf (stdout, "/%s", "Inf");
	} else if (max_size[i]!=cur_size[i] || verbose_g>0) {
	    HDfprintf(stdout, "/%Hu", max_size[i]);
	}
    }
    if (0==ndims) printf("SCALAR");
    putchar('}');
    H5Sclose (space);

    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	dataset_list2
 *
 * Purpose:	List information about a dataset which should appear after
 *		information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
dataset_list2(hid_t dset, const char * UNUSED name)
{
    hid_t		dcpl;		/*dataset creation property list*/
    hid_t		type;		/*data type of dataset		*/
    hid_t		space;		/*data space of dataset		*/
    int			nf;		/*number of filters		*/
    unsigned		filt_flags;	/*filter flags			*/
    H5Z_filter_t	filt_id;	/*filter identification number	*/
    unsigned		cd_values[20];	/*filter client data values	*/
    size_t		cd_nelmts;	/*filter client number of values*/
    size_t		cd_num;		/*filter client data counter	*/
    char		f_name[256];	/*filter/file name		*/
    char		s[64];		/*temporary string buffer	*/
    off_t		f_offset;	/*offset in external file	*/
    hsize_t		f_size;		/*bytes used in external file	*/
    hsize_t		total, used;	/*total size or offset		*/
    hsize_t		chsize[64];	/*chunk size in elements	*/
    int			ndims;		/*dimensionality		*/
    int			n, max_len;	/*max extern file name length	*/
    double		utilization;	/*percent utilization of storage*/
    int			i;
    
    if (verbose_g>0) {
	dcpl = H5Dget_create_plist(dset);
	space = H5Dget_space(dset);
	type = H5Dget_type(dset);

	/* Print information about chunked storage */
	if (H5D_CHUNKED==H5Pget_layout(dcpl)) {
	    ndims = H5Pget_chunk(dcpl, NELMTS(chsize), chsize/*out*/);
	    printf("    %-10s {", "Chunks:");
	    total = H5Tget_size(type);
	    for (i=0; i<ndims; i++) {
		printf("%s%lu", i?", ":"", (unsigned long)(chsize[i]));
		total *= chsize[i];
	    }
	    printf("} %lu bytes\n", (unsigned long)total);
	}

	/* Print total raw storage size */
	used = H5Sget_simple_extent_npoints(space) * H5Tget_size(type);
	total = H5Dget_storage_size(dset);
	printf("    %-10s ", "Storage:");
	printf("%lu logical byte%s, %lu allocated byte%s",
	       (unsigned long)used, 1==used?"":"s",
	       (unsigned long)total, 1==total?"":"s");
	if (total>0) {
#ifdef WIN32
	    hsize_t mask = (hsize_t)1 << (8*sizeof(hsize_t)-1);
	    if ((used & mask) || (total & mask)) {
		total = 0; /*prevent utilization printing*/
	    } else {
		utilization = (hssize_t)used*100.0 /(hssize_t)total;
	    }
#else
	    utilization = (used*100.0)/total;
#endif
	    printf(", %1.2f%% utilization", utilization/*(used*100.0)/total*/);
	}
	putchar('\n');
	
	/* Print information about external strorage */
	if ((nf = H5Pget_external_count(dcpl))>0) {
	    for (i=0, max_len=0; i<nf; i++) {
		H5Pget_external(dcpl, i, sizeof(f_name), f_name, NULL, NULL);
		n = display_string(NULL, f_name, TRUE);
		max_len = MAX(max_len, n);
	    }
	    printf("    %-10s %d external file%s\n",
		   "Extern:", nf, 1==nf?"":"s");
	    printf("        %4s %10s %10s %10s %s\n",
		   "ID", "DSet-Addr", "File-Addr", "Bytes", "File");
	    printf("        %4s %10s %10s %10s ",
		   "----", "----------", "----------", "----------");
	    for (i=0; i<max_len; i++) putchar('-');
	    putchar('\n');
	    for (i=0, total=0; i<nf; i++) {
		if (H5Pget_external(dcpl, i, sizeof(f_name), f_name, &f_offset,
				    &f_size)<0) {
		    HDfprintf(stdout,
			      "        #%03d %10Hu %10s %10s ***ERROR*** %s\n",
			      i, total, "", "",
			      i+1<nf?"Following addresses are incorrect":"");
		} else if (H5S_UNLIMITED==f_size) {
		    HDfprintf(stdout, "        #%03d %10Hu %10Hu %10s ",
			      i, total, (hsize_t)f_offset, "INF");
		    display_string(stdout, f_name, TRUE);
		} else {
		    HDfprintf(stdout, "        #%03d %10Hu %10Hu %10Hu ",
			      i, total, (hsize_t)f_offset, f_size);
		    display_string(stdout, f_name, TRUE);
		}
		putchar('\n');
		total += f_size;
	    }
	    printf("        %4s %10s %10s %10s ",
		   "----", "----------", "----------", "----------");
	    for (i=0; i<max_len; i++) putchar('-');
	    putchar('\n');
	}

	/* Print information about raw data filters */
	if ((nf = H5Pget_nfilters(dcpl))>0) {
	    for (i=0; i<nf; i++) {
		cd_nelmts = NELMTS(cd_values);
		filt_id = H5Pget_filter(dcpl, i, &filt_flags, &cd_nelmts,
					cd_values, sizeof(f_name), f_name);
		f_name[sizeof(f_name)-1] = '\0';
		sprintf(s, "Filter-%d:", i);
		printf("    %-10s %s-%u %s {", s,
		       f_name[0]?f_name:"method",
		       (unsigned)filt_id,
		       filt_flags & H5Z_FLAG_OPTIONAL?"OPT":"");
		for (cd_num=0; cd_num<cd_nelmts; cd_num++) {
		    printf("%s%u", cd_num?", ":"", cd_values[cd_num]);
		}
		printf("}\n");
	    }
	}

	/* Print data type */
	printf("    %-10s ", "Type:");
	display_type(type, 15);
	printf("\n");

	/* Print address information */
	if (address_g) H5Ddebug(dset, 0);

	/* Close stuff */
	H5Tclose(type);
	H5Sclose(space);
	H5Pclose(dcpl);
    }

    if (data_g) dump_dataset_values(dset);
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	group_list2
 *
 * Purpose:	List information about a group which should appear after
 *		information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, January 21, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
group_list2(hid_t grp, const char *name)
{
    iter_t	iter;
    
    if (recursive_g) {
	iter.container = name;
	H5Giterate(grp, ".", NULL, list, &iter);
    }
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	datatype_list2
 *
 * Purpose:	List information about a data type which should appear after
 *		information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
datatype_list2(hid_t type, const char * UNUSED name)
{
    if (verbose_g>0) {
	printf("    %-10s ", "Type:");
	display_type(type, 15);
	printf("\n");
    }
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	link_open
 *
 * Purpose:	This gets called to open a symbolic link.  Since symbolic
 *		links don't correspond to actual objects we simply print the
 *		link information and return failure.
 *
 * Return:	Success:	0 - an invalid object but successful return
 *				of this function.
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hid_t
link_open(hid_t location, const char *name)
{
    char	buf[64];
    
    if (H5Gget_linkval (location, name, sizeof(buf), buf)<0) return -1;
    if (NULL==HDmemchr(buf, 0, sizeof(buf))) {
	strcpy(buf+sizeof(buf)-4, "...");
    }
    fputs(buf, stdout);

    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	list
 *
 * Purpose:	Prints the group member name.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Monday, March 23, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
list (hid_t group, const char *name, void *_iter)
{
    hid_t	obj=-1;
    char	buf[512], comment[50], *fullname=NULL, *s=NULL;
    H5G_stat_t	sb;
    struct tm	*tm;
    herr_t	status;
    iter_t	*iter = (iter_t*)_iter;
    int		n;
    
    /* Print the object name, either full name or base name */
    fullname = fix_name(iter->container, name);
    if (fullname_g) {
	n = display_string(stdout, fullname, TRUE);
	printf("%*s ", MAX(0, 24-n), "");
    } else {
	n = display_string(stdout, name, TRUE);
	printf("%*s ", MAX(0, 24-n), "");
    }

    /* Get object information */
    H5E_BEGIN_TRY {
	status = H5Gget_objinfo(group, name, FALSE, &sb);
    } H5E_END_TRY;
    if (status<0) {
	puts("**NOT FOUND**");
	return 0;
    } else if (sb.type<0 || sb.type>=H5G_NTYPES) {
	printf("Unknown type(%d)", sb.type);
	sb.type = -1;
    }
    if (sb.type>=0 && dispatch_g[sb.type].name) {
	fputs(dispatch_g[sb.type].name, stdout);
    }

    /*
     * If the object has already been printed then just show the object ID
     * and return.
     */
    if ((s=sym_lookup(&sb))) {
	printf(", same as ");
	display_string(stdout, s, TRUE);
	printf("\n");
	goto done;
    } else {
	sym_insert(&sb, fullname);
    }
    
    /*
     * Open the object.  Not all objects can be opened.  If this is the case
     * then return right away.
     */
    if (sb.type>=0 &&
	(NULL==dispatch_g[sb.type].open ||
	 (obj=(dispatch_g[sb.type].open)(group, name))<0)) {
	printf(" *ERROR*\n");
	goto done;
    }
    
    /*
     * List the first line of information for the object.
     */
    if (sb.type>=0 && dispatch_g[sb.type].list1) {
	(dispatch_g[sb.type].list1)(obj);
    }
    putchar('\n');
    
    /*
     * Show detailed information about the object, beginning with information
     * which is common to all objects.
     */
    if (verbose_g>0 && H5G_LINK!=sb.type) {
	if (sb.type>=0) H5Aiterate(obj, NULL, list_attr, NULL);
	printf("    %-10s %lu:%lu:%lu:%lu\n", "Location:",
	       sb.fileno[1], sb.fileno[0], sb.objno[1], sb.objno[0]);
	printf("    %-10s %u\n", "Links:", sb.nlink);
	if (sb.mtime>0 && NULL!=(tm=localtime(&(sb.mtime)))) {
	    strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S %Z", tm);
	    printf("    %-10s %s\n", "Modified:", buf);
	}
	comment[0] = '\0';
	H5Gget_comment(group, name, sizeof(comment), comment);
	strcpy(comment+sizeof(comment)-4, "...");
	if (comment[0]) {
	    printf("    %-10s \"", "Comment:");
	    display_string(stdout, comment, FALSE);
	    puts("\"");
	}
    }
    if (sb.type>=0 && dispatch_g[sb.type].list2) {
	(dispatch_g[sb.type].list2)(obj, fullname);
    }
    
    /*
     * Close the object.
     */
 done:
    if (sb.type>=0 && obj>=0 && dispatch_g[sb.type].close) {
	(dispatch_g[sb.type].close)(obj);
    }
    if (fullname) free(fullname);
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	fix_name
 *
 * Purpose:	Returns a malloc'd buffer that contains the PATH and BASE
 *		names separated by a single slash. It also removes duplicate
 *		and trailing slashes.
 *
 * Return:	Success:	Ptr to fixed name from malloc()
 *
 *		Failure:	NULL
 *
 * Programmer:	Robb Matzke
 *              Thursday, January 21, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static char *
fix_name(const char *path, const char *base)
{
    size_t	n = (path?strlen(path):0) + (base?strlen(base):0) + 3;
    char	*s = malloc(n), prev='\0';
    int		len=0;

    if (path) {
	/* Path, followed by slash */
#ifdef H5LS_PREPEND_FILENAME
	if ('/'!=*path) s[len++] = '/';
#endif
	for (/*void*/; *path; path++) {
	    if ('/'!=*path || '/'!=prev) prev = s[len++] = *path;
	}
	if ('/'!=prev) prev = s[len++] = '/';
    }

    if (base) {
	/* Base name w/o trailing slashes */
	const char *end = base + strlen(base);
	while (end>base && '/'==end[-1]) --end;
	for (/*void*/; base<end; base++) {
	    if ('/'!=*base || '/'!=prev) prev = s[len++] = *base;
	}
    }

    s[len] = '\0';
    return s;
}


/*-------------------------------------------------------------------------
 * Function:	get_width
 *
 * Purpose:	Figure out how wide the screen is.  This is highly
 *		unportable, but the user can always override the width we
 *		detect by giving a command-line option. These code snippets
 *		were borrowed from the GNU less(1).
 *
 * Return:	Success:	Number of columns.
 *
 *		Failure:	Some default number of columms.
 *
 * Programmer:	Robb Matzke
 *              Friday, November  6, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
get_width(void)
{
    int		width = 80;		/*the default			*/
    char	*s;

    /*
     * Try to get it from the COLUMNS environment variable first since it's
     * value is sometimes wrong.
     */
    if ((s=getenv("COLUMNS")) && *s && isdigit((int)*s)) {
	width = (int)strtol(s, NULL, 0);
    }

#if defined(H5_HAVE_STRUCT_VIDEOCONFIG) && defined(H5_HAVE__GETVIDEOCONFIG)
    {
	/* Microsoft C */
	struct videoconfig w;
	_getvideoconfig(&w);
	width = w.numtextcols;
    }
#elif defined(H5_HAVE_STRUCT_TEXT_INFO) && defined(H5_HAVE_GETTEXTINFO)
    {
	/* Borland C or DJGPPC */
	struct text_info w;
	gettextinfo(&w);
	width = w.screenwidth;
    }
#elif defined(H5_HAVE_GETCONSOLESCREENBUFFERINFO)
    {
	/* Win32 C */
	CONSOLE_SCREEN_BUFFER_INFO scr;
	GetConsoleScreenBufferInfo(con_out, &scr);
	width = scr.srWindow.Right - scr.srWindow.Left + 1;
    }
#elif defined(H5_HAVE__SCRSIZE)
    {
	/* OS/2 */
	int w[2];
	_scrsize(w);
	width = w[0];
    }
#elif defined(H5_HAVE_TIOCGWINSZ) && defined(H5_HAVE_IOCTL)
#ifndef __PUMAGON__
/* the ioctl() call coredump on TFLOPS.  Turn it off for now. */
    {
	/* Unix with ioctl(TIOCGWINSZ) */
	struct winsize w;
	if (ioctl(2, TIOCGWINSZ, &w)>=0 && w.ws_col>0) {
	    width = w.ws_col;
	}
    }
#endif
#elif defined(H5_HAVE_TIOCGETD) && defined(H5_HAVE_IOCTL)
    {
	/* Unix with ioctl(TIOCGETD) */
	struct uwdata w;
	if (ioctl(2, WIOCGETD, &w)>=0 && w.uw_width>0) {
	    width = w.uw_width / w.uw_hs;
	}
    }
#endif

    /* Set to at least 1 */
    if (width<1) width = 1;
    return width;
}


/*-------------------------------------------------------------------------
 * Function:	main
 *
 * Purpose:	Opens a file and lists the specified group
 *
 * Return:	Success:	0
 *
 *		Failure:	1
 *
 * Programmer:	Robb Matzke
 *              Monday, March 23, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
int
main (int argc, char *argv[])
{
    hid_t	file=-1, root=-1;
    char	*fname=NULL, *oname=NULL, *x;
    const char	*progname="h5ls";
    const char	*s = NULL;
    char	*rest, *container=NULL;
    int		argno;
    H5G_stat_t	sb;
    iter_t	iter;
    static char	root_name[] = "/";
    char        drivername[50];

    /* Initialize h5tools lib */
    h5tools_init();

    /* Build display table */
    DISPATCH(H5G_DATASET, "Dataset", H5Dopen, H5Dclose,
	     dataset_list1, dataset_list2);
    DISPATCH(H5G_GROUP, "Group", H5Gopen, H5Gclose,
	     NULL, group_list2);
    DISPATCH(H5G_TYPE, "Type", H5Topen, H5Tclose,
	     NULL, datatype_list2);
    DISPATCH(H5G_LINK, "-> ", link_open, NULL,
	     NULL, NULL);

#if 0
    /* Name of this program without the path */
    if ((progname=strrchr(argv[0], '/'))) progname++;
    else progname = argv[0];
#endif

    /* Default output width */
    width_g = get_width();

    /* Switches come before non-switch arguments */
    for (argno=1; argno<argc && '-'==argv[argno][0]; argno++) {
	if (!strcmp(argv[argno], "--")) {
	    /* Last switch */
	    argno++;
	    break;
	} else if (!strcmp(argv[argno], "--help")) {
	    usage(progname);
	    exit(0);
	} else if (!strcmp(argv[argno], "--address")) {
	    address_g = TRUE;
	} else if (!strcmp(argv[argno], "--data")) {
	    data_g = TRUE;
	} else if (!strcmp(argv[argno], "--errors")) {
	    show_errors_g = TRUE;
	} else if (!strcmp(argv[argno], "--full")) {
	    fullname_g = TRUE;
	} else if (!strcmp(argv[argno], "--group")) {
	    grp_literal_g = TRUE; 
	} else if (!strcmp(argv[argno], "--label")) {
	    label_g = TRUE;
	} else if (!strcmp(argv[argno], "--recursive")) {
	    recursive_g = TRUE;
	    fullname_g = TRUE;
	} else if (!strcmp(argv[argno], "--simple")) {
	    simple_output_g = TRUE;
	} else if (!strcmp(argv[argno], "--string")) {
	    string_g = TRUE;
	} else if (!strncmp(argv[argno], "--width=", 8)) {
	    width_g = (int)strtol(argv[argno]+8, &rest, 0);
	    if (width_g<=0 || *rest) {
		usage(progname);
		exit(1);
	    }
	} else if (!strcmp(argv[argno], "--width")) {
	    if (argno+1>=argc) {
		usage(progname);
		exit(1);
	    } else {
		s = argv[++argno];
	    }
	    width_g = (int)strtol(s, &rest, 0);
	    if (width_g<=0 || *rest) {
		usage(progname);
		exit(1);
	    }
	} else if (!strcmp(argv[argno], "--verbose")) {
	    verbose_g++;
	} else if (!strcmp(argv[argno], "--version")) {
            print_version(progname);
	    exit(0);
	} else if (!strcmp(argv[argno], "--hexdump")) {
	    hexdump_g = TRUE;
	} else if (!strncmp(argv[argno], "-w", 2)) {
	    if (argv[argno][2]) {
		s = argv[argno]+2;
	    } else if (argno+1>=argc) {
		usage(progname);
		exit(1);
	    } else {
		s = argv[++argno];
	    }
	    width_g = (int)strtol(s, &rest, 0);
	    if (width_g<=0 || *rest) {
		usage(progname);
		exit(1);
	    }
	} else if ('-'!=argv[argno][1]) {
	    /* Single-letter switches */
	    for (s=argv[argno]+1; *s; s++) {
		switch (*s) {
		case '?':
		case 'h':	/* --help */
		    usage(progname);
		    exit(0);
		case 'a':	/* --address */
		    address_g = TRUE;
		    break;
		case 'd':	/* --data */
		    data_g = TRUE;
		    break;
		case 'e':	/* --errors */
		    show_errors_g = TRUE;
		    break;
		case 'f':	/* --full */
		    fullname_g = TRUE;
		    break;
		case 'g':	/* --group */
		    grp_literal_g = TRUE;
		    break;
		case 'l':	/* --label */
		    label_g = TRUE;
		    break;
		case 'r':	/* --recursive */
		    recursive_g = TRUE;
		    fullname_g = TRUE;
		    break;
		case 'S':	/* --simple */
		    simple_output_g = TRUE;
		    break;
		case 's':	/* --string */
		    string_g = TRUE;
		    break;
		case 'v':	/* --verbose */
		    verbose_g++;
		    break;
		case 'V':	/* --version */
                    print_version(progname);
		    exit(0);
		case 'x':	/* --hexdump */
		    hexdump_g = TRUE;
		    break;
		default:
		    usage(progname);
		    exit(1);
		}
	    }
	} else {
	    usage(progname);
	    exit(1);
	}
    }

    /*
     * If no arguments remain then print a usage message (instead of doing
     * absolutely nothing ;-)
     */
    if (argno>=argc) {
	usage(progname);
	exit(1);
    }

    /* Turn off HDF5's automatic error printing unless you're debugging h5ls */
    if (!show_errors_g) H5Eset_auto(NULL, NULL);


    /*
     * Each remaining argument is an hdf5 file followed by an optional slash
     * and object name.
     *
     * Example:	../dir1/foo/bar/baz
     *          \_________/\______/
     *             file       obj
     *
     * The dichotomy is determined by calling H5Fopen() repeatedly until it
     * succeeds. The first call uses the entire name and each subsequent call
     * chops off the last component. If we reach the beginning of the name
     * then there must have been something wrong with the file (perhaps it
     * doesn't exist).
     */
    while (argno<argc) {
	fname = argv[argno++];
	oname = NULL;
	file = -1;

	while (fname && *fname) {
            file = h5tools_fopen(fname, NULL, drivername, sizeof drivername);

	    if (file>=0) {
		if (verbose_g) {
		    printf("Opened \"%s\" with %s driver.\n",
			   fname, drivername);
		}
		break; /*success*/
	    }
	    
	    /* Shorten the file name; lengthen the object name */
	    x = oname;
	    oname = strrchr(fname, '/');
	    if (x) *x = '/';
	    if (!oname) break;
	    *oname = '\0';
	}
	if (file<0) {
	    fprintf(stderr, "%s: unable to open file\n", argv[argno-1]);
            continue;
	}
	if (oname) oname++;
	if (!oname || !*oname) oname = root_name;

	/* Open the object and display it's information */
	if (H5Gget_objinfo(file, oname, TRUE, &sb)>=0 &&
	    H5G_GROUP==sb.type && !grp_literal_g) {
	    /*
	     * Specified name is a group. List the complete contents of the
	     * group.
	     */
	    sym_insert(&sb, oname);
#ifdef H5LS_PREPEND_FILENAME
	    iter.container = container = fix_name(fname, oname);
#else
	    iter.container = container = fix_name("", oname);
#endif
	    H5Giterate(file, oname, NULL, list, &iter);
	    free(container);

	} else if ((root=H5Gopen(file, "/"))<0) {
	    exit(1); /*major problem!*/
		
	} else {
	    /*
	     * Specified name is a non-group object -- list that object.  The
	     * container for the object is everything up to the base name.
	     */
#ifdef H5LS_PREPEND_FILENAME
	    iter.container = fname;
#else
	    iter.container = "/";
#endif
	    list(root, oname, &iter);
	    if (H5Gclose(root)<0) exit(1);
	}
	H5Fclose(file);
    }
    h5tools_close();
    
    return 0;
}