icuSources/common/resbund_cnv.cpp

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 1997-2004, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *   file name:  resbund_cnv.cpp
   9 *   encoding:   US-ASCII
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 *   created on: 2004aug25
  14 *   created by: Markus W. Scherer
  15 *
  16 *   Character conversion functions moved here from resbund.cpp
  17 */
  18
  19 #include "unicode/utypes.h"
  20 #include "unicode/resbund.h"
  21 #include "uinvchar.h"
  22
  23 U_NAMESPACE_BEGIN
  24
  25 ResourceBundle::ResourceBundle( const UnicodeString&    path,
  26                                 const Locale&           locale,
  27                                 UErrorCode&              error)
  28                                 :UObject(), fLocale(NULL)
  29 {
  30     constructForLocale(path, locale, error);
  31 }
  32
  33 ResourceBundle::ResourceBundle( const UnicodeString&    path,
  34                                 UErrorCode&              error)
  35                                 :UObject(), fLocale(NULL)
  36 {
  37     constructForLocale(path, Locale::getDefault(), error);
  38 }
  39
  40 void
  41 ResourceBundle::constructForLocale(const UnicodeString& path,
  42                                    const Locale& locale,
  43                                    UErrorCode& error)
  44 {
  45     char name[300];
  46
  47     if(path.length() >= (int32_t)sizeof(name)) {
  48         fResource = NULL;
  49         error = U_ILLEGAL_ARGUMENT_ERROR;
  50     } else if(!path.isEmpty()) {
  51         if(uprv_isInvariantUString(path.getBuffer(), path.length())) {
  52             // the invariant converter is sufficient for package and tree names
  53             // and is more efficient
  54             path.extract(0, INT32_MAX, name, (int32_t)sizeof(name), US_INV);
  55         } else {
  56 #if !UCONFIG_NO_CONVERSION
  57             // use the default converter to support variant-character paths
  58             path.extract(name, sizeof(name), 0, error);
  59 #else
  60             // the default converter is not available
  61             fResource = NULL;
  62             error = U_UNSUPPORTED_ERROR;
  63             return;
  64 #endif
  65         }
  66         fResource = ures_open(name, locale.getName(), &error);
  67     } else {
  68         fResource = ures_open(0, locale.getName(), &error);
  69     }
  70 }
  71
  72 U_NAMESPACE_END