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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)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5G_init_int_interface)
+
+ FUNC_LEAVE_NOAPI(H5G_init())
+} /* 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_NOFUNC here to avoid performance issues */
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5G_component)
+
+ 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(H5G_normalize)
+
+ /* 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() */
+