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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Gint.c
* April 5 2007
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: General use, "internal" routines for groups.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#define H5G_PACKAGE /*suppress error about including H5Gpkg */
/* Interface initialization */
#define H5_INTERFACE_INIT_FUNC H5G_init_int_interface
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gpkg.h" /* Groups */
#include "H5MMprivate.h" /* Memory management */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*--------------------------------------------------------------------------
NAME
H5G_init_int_interface -- Initialize interface-specific information
USAGE
herr_t H5G_init_int_interface()
RETURNS
Non-negative on success/Negative on failure
DESCRIPTION
Initializes any interface-specific data or routines. (Just calls
H5G_init() currently).
--------------------------------------------------------------------------*/
static herr_t
H5G_init_int_interface(void)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Funnel all work to H5G_init() */
if(H5G_init() < 0)
HGOTO_ERROR(H5E_FUNC, H5E_CANTINIT, FAIL, "interface initialization failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5G_init_int_interface() */
/*-------------------------------------------------------------------------
* Function: H5G_component
*
* Purpose: Returns the pointer to the first component of the
* specified name by skipping leading slashes. Returns
* the size in characters of the component through SIZE_P not
* counting leading slashes or the null terminator.
*
* Return: Success: Ptr into NAME.
*
* Failure: Ptr to the null terminator of NAME.
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Aug 11 1997
*
*-------------------------------------------------------------------------
*/
const char *
H5G_component(const char *name, size_t *size_p)
{
/* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOERR
assert(name);
while ('/' == *name)
name++;
if (size_p)
*size_p = HDstrcspn(name, "/");
FUNC_LEAVE_NOAPI(name)
} /* end H5G_component() */
/*-------------------------------------------------------------------------
* Function: H5G_normalize
*
* Purpose: Returns a pointer to a new string which has duplicate and
* trailing slashes removed from it.
*
* Return: Success: Ptr to normalized name.
* Failure: NULL
*
* Programmer: Quincey Koziol
* Saturday, August 16, 2003
*
*-------------------------------------------------------------------------
*/
char *
H5G_normalize(const char *name)
{
char *norm; /* Pointer to the normalized string */
size_t s,d; /* Positions within the strings */
unsigned last_slash; /* Flag to indicate last character was a slash */
char *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Sanity check */
HDassert(name);
/* Duplicate the name, to return */
if(NULL == (norm = H5MM_strdup(name)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for normalized string")
/* Walk through the characters, omitting duplicated '/'s */
s = d = 0;
last_slash = 0;
while(name[s] != '\0') {
if(name[s] == '/')
if(last_slash)
;
else {
norm[d++] = name[s];
last_slash = 1;
} /* end else */
else {
norm[d++] = name[s];
last_slash = 0;
} /* end else */
s++;
} /* end while */
/* Terminate normalized string */
norm[d] = '\0';
/* Check for final '/' on normalized name & eliminate it */
if(d > 1 && last_slash)
norm[d - 1] = '\0';
/* Set return value */
ret_value = norm;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5G_normalize() */
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