diff options
Diffstat (limited to 'src/H5Gname.c')
| -rw-r--r-- | src/H5Gname.c | 116 |
1 files changed, 107 insertions, 9 deletions
diff --git a/src/H5Gname.c b/src/H5Gname.c index 9f135f8..62875dc 100644 --- a/src/H5Gname.c +++ b/src/H5Gname.c @@ -113,6 +113,104 @@ H5FL_BLK_EXTERN(str_buf); /*------------------------------------------------------------------------- + * 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) +{ + FUNC_ENTER_PACKAGE_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() */ + + +/*------------------------------------------------------------------------- * Function: H5G_common_path * * Purpose: Determine if one path is a valid prefix of another path @@ -139,11 +237,11 @@ H5G_common_path(const H5RS_str_t *fullpath_r, const H5RS_str_t *prefix_r) /* Get component of each name */ fullpath=H5RS_get_str(fullpath_r); assert(fullpath); - fullpath=H5G_component(fullpath,&nchars1); + fullpath=H5G__component(fullpath,&nchars1); assert(fullpath); prefix=H5RS_get_str(prefix_r); assert(prefix); - prefix=H5G_component(prefix,&nchars2); + prefix=H5G__component(prefix,&nchars2); assert(prefix); /* Check if we have a real string for each component */ @@ -157,9 +255,9 @@ H5G_common_path(const H5RS_str_t *fullpath_r, const H5RS_str_t *prefix_r) prefix+=nchars2; /* Get next component of each name */ - fullpath=H5G_component(fullpath,&nchars1); + fullpath=H5G__component(fullpath,&nchars1); assert(fullpath); - prefix=H5G_component(prefix,&nchars2); + prefix=H5G__component(prefix,&nchars2); assert(prefix); } /* end if */ else @@ -310,7 +408,7 @@ H5G_build_fullpath_refstr_refstr(const H5RS_str_t *prefix_r, const H5RS_str_t *n /*------------------------------------------------------------------------- - * Function: H5G_name_init + * Function: H5G__name_init * * Purpose: Set the initial path for a group hierarchy name * @@ -323,9 +421,9 @@ H5G_build_fullpath_refstr_refstr(const H5RS_str_t *prefix_r, const H5RS_str_t *n *------------------------------------------------------------------------- */ herr_t -H5G_name_init(H5G_name_t *name, const char *path) +H5G__name_init(H5G_name_t *name, const char *path) { - FUNC_ENTER_NOAPI_NOINIT_NOERR + FUNC_ENTER_PACKAGE /* Check arguments */ HDassert(name); @@ -338,7 +436,7 @@ H5G_name_init(H5G_name_t *name, const char *path) name->obj_hidden = 0; FUNC_LEAVE_NOAPI(SUCCEED) -} /* end H5G_name_init() */ +} /* end H5G__name_init() */ /*------------------------------------------------------------------------- @@ -355,7 +453,7 @@ H5G_name_init(H5G_name_t *name, const char *path) *------------------------------------------------------------------------- */ herr_t -H5G_name_set(H5G_name_t *loc, H5G_name_t *obj, const char *name) +H5G_name_set(const H5G_name_t *loc, H5G_name_t *obj, const char *name) { herr_t ret_value = SUCCEED; |