michael@0: /*
michael@0: *******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 1997-2006, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: *******************************************************************************
michael@0: *   file name:  ures_cnv.c
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:4
michael@0: *
michael@0: *   created on: 2004aug25
michael@0: *   created by: Markus W. Scherer
michael@0: *
michael@0: *   Character conversion functions moved here from uresbund.c
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: #include "unicode/putil.h"
michael@0: #include "unicode/ustring.h"
michael@0: #include "unicode/ucnv.h"
michael@0: #include "unicode/ures.h"
michael@0: #include "uinvchar.h"
michael@0: #include "ustr_cnv.h"
michael@0: 
michael@0: U_CAPI UResourceBundle * U_EXPORT2
michael@0: ures_openU(const UChar *myPath, 
michael@0:            const char *localeID, 
michael@0:            UErrorCode *status)
michael@0: {
michael@0:     char pathBuffer[1024];
michael@0:     int32_t length;
michael@0:     char *path = pathBuffer;
michael@0: 
michael@0:     if(status==NULL || U_FAILURE(*status)) {
michael@0:         return NULL;
michael@0:     }
michael@0:     if(myPath==NULL) {
michael@0:         path = NULL;
michael@0:     }
michael@0:     else {
michael@0:         length=u_strlen(myPath);
michael@0:         if(length>=sizeof(pathBuffer)) {
michael@0:             *status=U_ILLEGAL_ARGUMENT_ERROR;
michael@0:             return NULL;
michael@0:         } else if(uprv_isInvariantUString(myPath, length)) {
michael@0:             /*
michael@0:              * the invariant converter is sufficient for package and tree names
michael@0:              * and is more efficient
michael@0:              */
michael@0:             u_UCharsToChars(myPath, path, length+1); /* length+1 to include the NUL */
michael@0:         } else {
michael@0: #if !UCONFIG_NO_CONVERSION
michael@0:             /* use the default converter to support variant-character paths */
michael@0:             UConverter *cnv=u_getDefaultConverter(status);
michael@0:             length=ucnv_fromUChars(cnv, path, (int32_t)sizeof(pathBuffer), myPath, length, status);
michael@0:             u_releaseDefaultConverter(cnv);
michael@0:             if(U_FAILURE(*status)) {
michael@0:                 return NULL;
michael@0:             }
michael@0:             if(length>=sizeof(pathBuffer)) {
michael@0:                 /* not NUL-terminated - path too long */
michael@0:                 *status=U_ILLEGAL_ARGUMENT_ERROR;
michael@0:                 return NULL;
michael@0:             }
michael@0: #else
michael@0:             /* the default converter is not available */
michael@0:             *status=U_UNSUPPORTED_ERROR;
michael@0:             return NULL;
michael@0: #endif
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     return ures_open(path, localeID, status);
michael@0: }