UINT_PTR CBkSafeMsgBox2::ShowMutlLineMsg(LPCWSTR pszMsg,
LPCWSTR lpszCaption /* = NULL */,
UINT uType /* = NULL */,
BOOL *pbNoNotifyLater /* = NULL */,
HWND hWndParent /* = ::GetActiveWindow */)
{
CString strMsg = pszMsg, strXml(L""), strXmlPanel(L"");
CAtlArray<CString> arrMsgLine;
if ( 0 == ParseMsgLine(strMsg, arrMsgLine))
return -1;
int nWidth = 0,
nLineCount = arrMsgLine.GetCount(),
nHeight = nLineCount* 18,
nTop = 0;
CRect rcText;
for (int i = 0; i < nLineCount; i++)
{
if (1 == nLineCount)
nTop = 10;
else
nTop = i*18;
strXml.Format(L"<text pos=\"0,%d\">%s</text>", nTop, arrMsgLine[i]);
strXmlPanel += strXml;
rcText = GetTextRect(arrMsgLine[i]);
if (nWidth < rcText.Width())
nWidth = rcText.Width();
}
CRect rc(0, 0, nWidth+10, nHeight);
return ShowPanelMsg(strXmlPanel, &rc, NULL, uType, pbNoNotifyLater, hWndParent);
}
bool CCharsetDetection::GetXmlEncodingFromDeclaration(const char* const xmlContent, const size_t contentLength, std::string& declaredEncoding)
{
// following code is std::string-processing analog of regular expression-processing
// regular expression: "<\\?xml([ \n\r\t]+[^ \n\t\r>]+)*[ \n\r\t]+encoding[ \n\r\t]*=[ \n\r\t]*('[^ \n\t\r>']+'|\"[^ \n\t\r>\"]+\")"
// on win32 x86 machine regular expression is slower that std::string 20-40 times and can slowdown XML processing for several times
// seems that this regular expression is too slow due to many variable length parts, regexp for '&'-fixing is much faster
declaredEncoding.clear();
// avoid extra large search
std::string strXml(xmlContent, std::min(contentLength, m_XmlDeclarationMaxLength));
size_t pos = strXml.find("<?xml");
if (pos == std::string::npos || pos + 6 > strXml.length() || pos > strXml.find('<'))
return false; // no "<?xml" declaration, "<?xml" is not first element or "<?xml" is incomplete
pos += 5; // 5 is length of "<?xml"
const size_t declLength = std::min(std::min(m_XmlDeclarationMaxLength, contentLength - pos), strXml.find('>', pos) - pos);
const std::string xmlDecl(xmlContent + pos, declLength);
const char* const xmlDeclC = xmlDecl.c_str(); // for faster processing of [] and for null-termination
static const char* const whiteSpaceChars = " \n\r\t"; // according to W3C Recommendation for XML, any of them can be used as separator
pos = 0;
while (pos + 12 <= declLength) // 12 is minimal length of "encoding='x'"
{
pos = xmlDecl.find_first_of(whiteSpaceChars, pos);
if (pos == std::string::npos)
return false; // no " encoding=" in declaration
pos = xmlDecl.find_first_not_of(whiteSpaceChars, pos);
if (pos == std::string::npos)
return false; // no "encoding=" in declaration
if (xmlDecl.compare(pos, 8, "encoding", 8) != 0)
continue; // not "encoding" parameter
pos += 8; // length of "encoding"
if (xmlDeclC[pos] == ' ' || xmlDeclC[pos] == '\n' || xmlDeclC[pos] == '\r' || xmlDeclC[pos] == '\t') // no buffer overrun as string is null-terminated
{
pos = xmlDecl.find_first_not_of(whiteSpaceChars, pos);
if (pos == std::string::npos)
return false; // this " encoding" is incomplete, only whitespace chars remains
}
if (xmlDeclC[pos] != '=')
{ // "encoding" without "=", try to find other
pos--; // step back to whitespace
continue;
}
pos++; // skip '='
if (xmlDeclC[pos] == ' ' || xmlDeclC[pos] == '\n' || xmlDeclC[pos] == '\r' || xmlDeclC[pos] == '\t') // no buffer overrun as string is null-terminated
{
pos = xmlDecl.find_first_not_of(whiteSpaceChars, pos);
if (pos == std::string::npos)
return false; // this " encoding" is incomplete, only whitespace chars remains
}
size_t encNameEndPos;
if (xmlDeclC[pos] == '"')
encNameEndPos = xmlDecl.find('"', ++pos);
else if (xmlDeclC[pos] == '\'')
encNameEndPos = xmlDecl.find('\'', ++pos);
else
continue; // no quote or double quote after 'encoding=', try to find other
if (encNameEndPos != std::string::npos)
{
declaredEncoding.assign(xmlDecl, pos, encNameEndPos - pos);
return true;
}
// no closing quote or double quote after 'encoding="x', try to find other
}
return false;
}
