C++ (Cpp) VerifyCharset Examples

Example #1

File: nsUNIXCharset.cpp Project: Akin-Net/mozilla-central

nsresult
nsPlatformCharset::InitGetCharset(nsACString &oString)
{
  char* nl_langinfo_codeset = nsnull;
  nsCString aCharset;
  nsresult res;

#if HAVE_LANGINFO_CODESET
  nl_langinfo_codeset = nl_langinfo(CODESET);
  NS_ASSERTION(nl_langinfo_codeset, "cannot get nl_langinfo(CODESET)");

  //
  // see if we can use nl_langinfo(CODESET) directly
  //
  if (nl_langinfo_codeset) {
    aCharset.Assign(nl_langinfo_codeset);
    res = VerifyCharset(aCharset);
    if (NS_SUCCEEDED(res)) {
      oString = aCharset;
      return res;
    }
  }

  NS_ERROR("unable to use nl_langinfo(CODESET)");
#endif

  //
  // try falling back on a deprecated (locale based) name
  //
  char* locale = setlocale(LC_CTYPE, nsnull);
  nsAutoString localeStr;
  localeStr.AssignWithConversion(locale);
  res = ConvertLocaleToCharsetUsingDeprecatedConfig(localeStr, oString);
  if (NS_SUCCEEDED(res)) {
    return res; // succeeded
  }

  oString.Truncate();
  return res;
}

Example #2

File: nsUNIXCharset.cpp Project: MozillaOnline/gecko-dev

nsresult
nsPlatformCharset::InitGetCharset(nsACString &oString)
{
  char* nl_langinfo_codeset = nsnull;
  nsCString aCharset;
  nsresult res;

#if HAVE_LANGINFO_CODESET
  nl_langinfo_codeset = nl_langinfo(CODESET);
  NS_ASSERTION(nl_langinfo_codeset, "cannot get nl_langinfo(CODESET)");

  //
  // see if we can use nl_langinfo(CODESET) directly
  //
  if (nl_langinfo_codeset) {
    aCharset.Assign(nl_langinfo_codeset);
    res = VerifyCharset(aCharset);
    if (NS_SUCCEEDED(res)) {
      oString = aCharset;
      return res;
    }
  }

  // locked for thread safety 
  {
    nsAutoLock guard(gLock);

    if (!gNLInfo) {
      nsCAutoString propertyFile;
      // note: NS_LITERAL_CSTRING("unixcharset." OSARCH ".properties") does not compile on AIX
      propertyFile.AssignLiteral("unixcharset.");
      propertyFile.AppendLiteral(NS_STRINGIFY(OSARCH));
      propertyFile.AppendLiteral(".properties");
      nsGREResProperties *info = new nsGREResProperties(propertyFile);
      NS_ASSERTION(info, "cannot create nsGREResProperties");
      if (info) {
        PRBool didLoad = info->DidLoad();
        if (!didLoad) {
          delete info;
          info = nsnull;
        }
      }
      gNLInfo = info;
    }
  }

  //
  // See if we are remapping nl_langinfo(CODESET)
  //
  if (gNLInfo && nl_langinfo_codeset) {
    nsAutoString localeKey;

#if HAVE_GNU_GET_LIBC_VERSION
    //
    // look for an glibc version specific charset remap
    //
    const char *glibc_version = gnu_get_libc_version();
    if ((glibc_version != nsnull) && (strlen(glibc_version))) {
      localeKey.AssignLiteral("nllic.");
      localeKey.AppendWithConversion(glibc_version);
      localeKey.AppendLiteral(".");
      localeKey.AppendWithConversion(nl_langinfo_codeset);
      nsAutoString uCharset;
      res = gNLInfo->Get(localeKey, uCharset);
      if (NS_SUCCEEDED(res)) {
        aCharset.AssignWithConversion(uCharset);
        res = VerifyCharset(aCharset);
        if (NS_SUCCEEDED(res)) {
          oString = aCharset;
          return res;
        }
      }
    }
#endif

    //
    // look for a charset specific charset remap
    //
    localeKey.AssignLiteral("nllic.");
    localeKey.AppendWithConversion(nl_langinfo_codeset);
    nsAutoString uCharset;
    res = gNLInfo->Get(localeKey, uCharset);
    if (NS_SUCCEEDED(res)) {
      aCharset.AssignWithConversion(uCharset);
      res = VerifyCharset(aCharset);
      if (NS_SUCCEEDED(res)) {
        oString = aCharset;
        return res;
      }
    }
  }

  NS_ERROR("unable to use nl_langinfo(CODESET)");
#endif

  //
  // try falling back on a deprecated (locale based) name
  //
  char* locale = setlocale(LC_CTYPE, nsnull);
  nsAutoString localeStr;
  localeStr.AssignWithConversion(locale);
  res = ConvertLocaleToCharsetUsingDeprecatedConfig(localeStr, oString);
  if (NS_SUCCEEDED(res)) {
    return res; // succeeded
  }

  oString.Truncate();
  return res;
}