C++ nsString::AppendLiteral方法代码示例

void nsOutlookMail::MakeAddressBookNameUnique(nsString& name, nsString& list)
{
  nsString    newName;
  int        idx = 1;

  newName = name;
  while (!IsAddressBookNameUnique(newName, list)) {
    newName = name;
    newName.Append(PRUnichar(' '));
    newName.AppendInt((int32_t) idx);
    idx++;
  }

  name = newName;
  list.AppendLiteral("[");
  list.Append(name);
  list.AppendLiteral("],");
}

bool
mozTXTToHTMLConv::CheckURLAndCreateHTML(
     const nsString& txtURL, const nsString& desc, const modetype mode,
     nsString& outputHTML)
{
  // Create *uri from txtURL
  nsCOMPtr<nsIURI> uri;
  nsresult rv;
  // Lazily initialize mIOService
  if (!mIOService)
  {
    mIOService = do_GetIOService();

    if (!mIOService)
      return false;
  }

  // See if the url should be linkified.
  NS_ConvertUTF16toUTF8 utf8URL(txtURL);
  if (!ShouldLinkify(utf8URL))
    return false;

  // it would be faster if we could just check to see if there is a protocol
  // handler for the url and return instead of actually trying to create a url...
  rv = mIOService->NewURI(utf8URL, nsnull, nsnull, getter_AddRefs(uri));

  // Real work
  if (NS_SUCCEEDED(rv) && uri)
  {
    outputHTML.AssignLiteral("<a class=\"moz-txt-link-");
    switch(mode)
    {
    case RFC1738:
      outputHTML.AppendLiteral("rfc1738");
      break;
    case RFC2396E:
      outputHTML.AppendLiteral("rfc2396E");
      break;
    case freetext:
      outputHTML.AppendLiteral("freetext");
      break;
    case abbreviated:
      outputHTML.AppendLiteral("abbreviated");
      break;
    default: break;
    }
    nsAutoString escapedURL(txtURL);
    EscapeStr(escapedURL, true);

    outputHTML.AppendLiteral("\" href=\"");
    outputHTML += escapedURL;
    outputHTML.AppendLiteral("\">");
    outputHTML += desc;
    outputHTML.AppendLiteral("</a>");
    return true;
  }
  else
    return false;
}

void nsIndexedToHTML::FormatSizeString(PRInt64 inSize, nsString& outSizeString)
{
    outSizeString.Truncate();
    if (inSize > PRInt64(0)) {
        // round up to the nearest Kilobyte
        PRInt64  upperSize = (inSize + PRInt64(1023)) / PRInt64(1024);
        outSizeString.AppendInt(upperSize);
        outSizeString.AppendLiteral(" KB");
    }
}

void nsStyleSides::AppendToString(nsString& aBuffer) const
{
  nsStyleCoord  temp;

  GetLeft(temp);
  aBuffer.AppendLiteral("left: ");
  temp.AppendToString(aBuffer);

  GetTop(temp);
  aBuffer.AppendLiteral("top: ");
  temp.AppendToString(aBuffer);

  GetRight(temp);
  aBuffer.AppendLiteral("right: ");
  temp.AppendToString(aBuffer);

  GetBottom(temp);
  aBuffer.AppendLiteral("bottom: ");
  temp.AppendToString(aBuffer);
}

void CMapiFolderList::ChangeName( nsString& name)
{
  if (name.IsEmpty()) {
    name.AssignLiteral("1");
    return;
  }
  PRUnichar lastC = name.Last();
  if ((lastC >= '0') && (lastC <= '9')) {
    lastC++;
    if (lastC > '9') {
      lastC = '1';
      name.SetCharAt( lastC, name.Length() - 1);
      name.AppendLiteral("0");
    }
    else {
      name.SetCharAt( lastC, name.Length() - 1);
    }
  }
  else {
    name.AppendLiteral(" 2");
  }
}

/* Formats an error message for non-certificate-related SSL errors
 * and non-overridable certificate errors (both are of type
 * PlainErrormMessage). Use formatOverridableCertErrorMessage
 * for overridable cert errors.
 */
static nsresult
formatPlainErrorMessage(const nsXPIDLCString &host, int32_t port,
                        PRErrorCode err,
                        bool suppressPort443,
                        nsString &returnedMessage)
{
    static NS_DEFINE_CID(kNSSComponentCID, NS_NSSCOMPONENT_CID);

    const char16_t *params[1];
    nsresult rv;

    nsCOMPtr<nsINSSComponent> component = do_GetService(kNSSComponentCID, &rv);
    NS_ENSURE_SUCCESS(rv, rv);

    if (host.Length())
    {
        nsString hostWithPort;

        // For now, hide port when it's 443 and we're reporting the error.
        // In the future a better mechanism should be used
        // to make a decision about showing the port number, possibly by requiring
        // the context object to implement a specific interface.
        // The motivation is that Mozilla browser would like to hide the port number
        // in error pages in the common case.

        hostWithPort.AssignASCII(host);
        if (!suppressPort443 || port != 443) {
            hostWithPort.Append(':');
            hostWithPort.AppendInt(port);
        }
        params[0] = hostWithPort.get();

        nsString formattedString;
        rv = component->PIPBundleFormatStringFromName("SSLConnectionErrorPrefix",
                params, 1,
                formattedString);
        if (NS_SUCCEEDED(rv))
        {
            returnedMessage.Append(formattedString);
            returnedMessage.AppendLiteral("\n\n");
        }
    }

    nsString explanation;
    rv = nsNSSErrors::getErrorMessageFromCode(err, component, explanation);
    if (NS_SUCCEEDED(rv))
        returnedMessage.Append(explanation);

    return NS_OK;
}

void
nsPerformanceSnapshot::GetGroupId(JSContext* cx,
                                  uint64_t uid,
                                  nsString& groupId)
{
  JSRuntime* rt = JS_GetRuntime(cx);
  uint64_t runtimeId = reinterpret_cast<uintptr_t>(rt);

  groupId.AssignLiteral("process: ");
  groupId.AppendInt(mProcessId);
  groupId.AssignLiteral(", thread: ");
  groupId.AppendInt(runtimeId);
  groupId.AppendLiteral(", group: ");
  groupId.AppendInt(uid);
}

// Returns NULL if there is no personal namespace on the given host
NS_IMETHODIMP nsIMAPHostSessionList::GetOnlineInboxPathForHost(const char *serverKey, nsString &result)
{
  PR_EnterMonitor(gCachedHostInfoMonitor);
  nsIMAPHostInfo *host = FindHost(serverKey);
  if (host)
  {
    nsIMAPNamespace *ns = NULL;
    ns = host->fNamespaceList->GetDefaultNamespaceOfType(kPersonalNamespace);
    if (ns)
    {
      CopyASCIItoUTF16(nsDependentCString(ns->GetPrefix()), result);
      result.AppendLiteral("INBOX");
    }
  }
  else
    result.Truncate();
  PR_ExitMonitor(gCachedHostInfoMonitor);
  return (host == NULL) ? NS_ERROR_ILLEGAL_VALUE : NS_OK;
}

ENameValueFlag
XULTreeGridRowAccessible::Name(nsString& aName)
{
  aName.Truncate();

  // XXX: the row name sholdn't be a concatenation of cell names (bug 664384).
  nsCOMPtr<nsITreeColumn> column = nsCoreUtils::GetFirstSensibleColumn(mTree);
  while (column) {
    if (!aName.IsEmpty())
      aName.AppendLiteral(" ");

    nsAutoString cellName;
    GetCellName(column, cellName);
    aName.Append(cellName);

    column = nsCoreUtils::GetNextSensibleColumn(column);
  }

  return eNameOK;
}

// Returns NULL if there is no personal namespace on the given host
NS_IMETHODIMP nsIMAPHostSessionList::GetOnlineInboxPathForHost(const char *serverKey, nsString &result)
{
  PR_EnterMonitor(gCachedHostInfoMonitor);
  nsIMAPHostInfo *host = FindHost(serverKey);
  if (host)
  {
    nsIMAPNamespace *ns = NULL;
    ns = host->fNamespaceList->GetDefaultNamespaceOfType(kPersonalNamespace);
    if (ns)
    {
      result.AssignWithConversion(ns->GetPrefix());
      result.AppendLiteral("INBOX");
    }
  }
  else
  {
    result.SetLength(0);
  }
  PR_ExitMonitor(gCachedHostInfoMonitor);
  return (host == NULL) ? NS_ERROR_ILLEGAL_VALUE : NS_OK;
}

void
ProgressMeterAccessible<Max>::Value(nsString& aValue)
{
  LeafAccessible::Value(aValue);
  if (!aValue.IsEmpty())
    return;

  double maxValue = MaxValue();
  if (IsNaN(maxValue) || maxValue == 0)
    return;

  double curValue = CurValue();
  if (IsNaN(curValue))
    return;

  // Treat the current value bigger than maximum as 100%.
  double percentValue = (curValue < maxValue) ?
    (curValue / maxValue) * 100 : 100;

  aValue.AppendFloat(percentValue);
  aValue.AppendLiteral("%");
}

//.........这里部分代码省略.........
                   ":-$",
                   "moz-smiley-s12", // money
                   outputHTML, glyphTextLen) ||
         
          SmilyHit(aInString, aInLength, bArg,
                   ":-!",
                   "moz-smiley-s13", // foot
                   outputHTML, glyphTextLen) ||
         
          SmilyHit(aInString, aInLength, bArg,
                   "O:-)",
                   "moz-smiley-s14", // innocent
                   outputHTML, glyphTextLen) ||
         
          SmilyHit(aInString, aInLength, bArg,
                   ":'(",
                   "moz-smiley-s15", // cry
                   outputHTML, glyphTextLen) ||
         
          SmilyHit(aInString, aInLength, bArg,
                   ":-X",
                   "moz-smiley-s16", // sealed
                   outputHTML, glyphTextLen) 
        )
    )
    {
        aOutputString.Append(outputHTML);
        return true;
    }
    i++;
  }
  if (text0 == '\f')
  {
      aOutputString.AppendLiteral("<span class='moz-txt-formfeed'></span>");
      glyphTextLen = 1;
      return true;
  }
  if (text0 == '+' || text1 == '+')
  {
    if (ItMatchesDelimited(aInString, aInLength,
                           NS_LITERAL_STRING(" +/-").get(), 4,
                           LT_IGNORE, LT_IGNORE))
    {
      aOutputString.AppendLiteral(" &plusmn;");
      glyphTextLen = 4;
      return true;
    }
    if (col0 && ItMatchesDelimited(aInString, aInLength,
                                   NS_LITERAL_STRING("+/-").get(), 3,
                                   LT_IGNORE, LT_IGNORE))
    {
      aOutputString.AppendLiteral("&plusmn;");
      glyphTextLen = 3;
      return true;
    }
  }

  // x^2  =>  x<sup>2</sup>,   also handle powers x^-2,  x^0.5
  // implement regular expression /[\dA-Za-z\)\]}]\^-?\d+(\.\d+)*[^\dA-Za-z]/
  if    
    (
      text1 == '^'
      && 
      (
        nsCRT::IsAsciiDigit(text0) || nsCRT::IsAsciiAlpha(text0) || 
        text0 == ')' || text0 == ']' || text0 == '}'

nsresult
FileSystemDataSource::getIEFavoriteURL(nsIRDFResource *source, nsString aFileURL, nsIRDFLiteral **urlLiteral)
{
    nsresult        rv = NS_OK;

    *urlLiteral = nullptr;

    nsCOMPtr<nsIFile> f;
    NS_GetFileFromURLSpec(NS_ConvertUTF16toUTF8(aFileURL), getter_AddRefs(f));

    bool value;

    if (NS_SUCCEEDED(f->IsDirectory(&value)) && value)
    {
        if (isValidFolder(source))
            return(NS_RDF_NO_VALUE);
        aFileURL.AppendLiteral("desktop.ini");
    }
    else if (aFileURL.Length() > 4)
    {
        nsAutoString    extension;

        aFileURL.Right(extension, 4);
        if (!extension.LowerCaseEqualsLiteral(".url"))
        {
            return(NS_RDF_NO_VALUE);
        }
    }

    nsCOMPtr<nsIInputStream> strm;
    NS_NewLocalFileInputStream(getter_AddRefs(strm),f);
    nsCOMPtr<nsILineInputStream> linereader = do_QueryInterface(strm, &rv);

    nsAutoString    line;
    nsAutoCString   cLine;
    while(NS_SUCCEEDED(rv))
    {
        bool    isEOF;
        rv = linereader->ReadLine(cLine, &isEOF);
        CopyASCIItoUTF16(cLine, line);

        if (isEOF)
        {
            if (line.Find("URL=", true) == 0)
            {
                line.Cut(0, 4);
                rv = mRDFService->GetLiteral(line.get(), urlLiteral);
                break;
            }
            else if (line.Find("CDFURL=", true) == 0)
            {
                line.Cut(0, 7);
                rv = mRDFService->GetLiteral(line.get(), urlLiteral);
                break;
            }
            line.Truncate();
        }
    }

    return(rv);
}

static void
ListInterestingFiles(nsString& aAnnotation, nsIFile* aFile,
                     const nsTArray<nsString>& aInterestingFilenames)
{
  nsString filename;
  aFile->GetLeafName(filename);
  for (const nsString& interestingFilename : aInterestingFilenames) {
    if (interestingFilename == filename) {
      nsString path;
      aFile->GetPath(path);
      aAnnotation.AppendLiteral("  ");
      aAnnotation.Append(path);
      aAnnotation.AppendLiteral(" (");
      int64_t size;
      if (NS_SUCCEEDED(aFile->GetFileSize(&size))) {
        aAnnotation.AppendPrintf("%ld", size);
      } else {
        aAnnotation.AppendLiteral("???");
      }
      aAnnotation.AppendLiteral(" bytes, crc32 = ");
      uint32_t crc;
      nsresult rv = ComputeCRC32(aFile, &crc);
      if (NS_SUCCEEDED(rv)) {
        aAnnotation.AppendPrintf("0x%08x)\n", crc);
      } else {
        aAnnotation.AppendPrintf("error 0x%08x)\n", uint32_t(rv));
      }
      return;
    }
  }

  bool isDir = false;
  aFile->IsDirectory(&isDir);

  if (!isDir) {
    return;
  }

  nsCOMPtr<nsISimpleEnumerator> entries;
  if (NS_FAILED(aFile->GetDirectoryEntries(getter_AddRefs(entries)))) {
    aAnnotation.AppendLiteral("  (failed to enumerated directory)\n");
    return;
  }

  for (;;) {
    bool hasMore = false;
    if (NS_FAILED(entries->HasMoreElements(&hasMore))) {
      aAnnotation.AppendLiteral("  (failed during directory enumeration)\n");
      return;
    }
    if (!hasMore) {
      break;
    }

    nsCOMPtr<nsISupports> entry;
    if (NS_FAILED(entries->GetNext(getter_AddRefs(entry)))) {
      aAnnotation.AppendLiteral("  (failed during directory enumeration)\n");
      return;
    }

    nsCOMPtr<nsIFile> file = do_QueryInterface(entry);
    if (file) {
      ListInterestingFiles(aAnnotation, file, aInterestingFilenames);
    }
  }
}

/**
 *  Parses the given input stream and returns a DOM Document.
 *  A NULL pointer will be returned if errors occurred
 */
nsresult
txXMLParser::parse(istream& aInputStream, const nsAString& aUri,
                   txXPathNode** aResultDoc)
{
    mErrorString.Truncate();
    *aResultDoc = nsnull;
    if (!aInputStream) {
        mErrorString.AppendLiteral("unable to parse xml: invalid or unopen stream encountered.");
        return NS_ERROR_FAILURE;
    }

    static const XML_Memory_Handling_Suite memsuite = {
        (void *(*)(size_t))PR_Malloc,
        (void *(*)(void *, size_t))PR_Realloc,
        PR_Free
    };
    static const PRUnichar expatSeparator = kExpatSeparatorChar;
    mExpatParser = XML_ParserCreate_MM(nsnull, &memsuite, &expatSeparator);
    if (!mExpatParser) {
        return NS_ERROR_OUT_OF_MEMORY;
    }
    mDocument = new Document();
    if (!mDocument) {
        XML_ParserFree(mExpatParser);
        return NS_ERROR_OUT_OF_MEMORY;
    }
    mDocument->documentBaseURI = aUri;
    mCurrentNode = mDocument;

    XML_SetReturnNSTriplet(mExpatParser, XML_TRUE);
    XML_SetUserData(mExpatParser, this);
    XML_SetElementHandler(mExpatParser, startElement, endElement);
    XML_SetCharacterDataHandler(mExpatParser, charData);
    XML_SetProcessingInstructionHandler(mExpatParser, piHandler);
    XML_SetCommentHandler(mExpatParser, commentHandler);
#ifdef XML_DTD
    XML_SetParamEntityParsing(mExpatParser, XML_PARAM_ENTITY_PARSING_ALWAYS);
#endif
    XML_SetExternalEntityRefHandler(mExpatParser, externalEntityRefHandler);
    XML_SetExternalEntityRefHandlerArg(mExpatParser, this);
    XML_SetBase(mExpatParser,
                (const XML_Char*)(PromiseFlatString(aUri).get()));

    const int bufferSize = 1024;
    char buf[bufferSize];
    PRBool done;
    do {
        aInputStream.read(buf, bufferSize);
        done = aInputStream.eof();

        if (!XML_Parse(mExpatParser, buf, aInputStream.gcount(), done)) {
            createErrorString();
            done = MB_TRUE;
            delete mDocument;
            mDocument = nsnull;
        }
    } while (!done);
    aInputStream.clear();

    // clean up
    XML_ParserFree(mExpatParser);
    // ownership to the caller
    *aResultDoc = txXPathNativeNode::createXPathNode(mDocument);
    mDocument = nsnull;
    return *aResultDoc ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}