C++ UT_String::substr方法代码示例

/*!
 * Assuming a string of standard abiword properties eg. "fred:nerk; table-width:1.0in; table-height:10.in"
 * Return the value of the property sProp or NULL if it is not present.
 * This UT_String * should be deleted by the calling programming after it is finished with it.
 */
UT_String UT_String_getPropVal(const UT_String & sPropertyString, const UT_String & sProp)
{
	UT_String sWork(sProp);
	sWork += ":";

	const char * szWork = sWork.c_str();
	const char * szProps = sPropertyString.c_str();
	const char * szLoc = strstr(szProps,szWork);
	if(szLoc == NULL)
	{
		return UT_String();
	}
//
// Look if this is the last property in the string.
//
	const char * szDelim = strchr(szLoc,';');
	if(szDelim == NULL)
	{
//
// Remove trailing spaces
//
		UT_sint32 iSLen = strlen(szProps);
		while(iSLen > 0 && szProps[iSLen-1] == ' ')
		{
			iSLen--;
		}
//
// Calculate the location of the substring
//
		UT_sint32 offset = static_cast<UT_sint32>(reinterpret_cast<size_t>(szLoc) - reinterpret_cast<size_t>(szProps));
		offset += strlen(szWork);
		return UT_String(sPropertyString.substr(offset,(iSLen - offset)));
	}
	else
	{
		szDelim = strchr(szLoc,';');
		if(szDelim == NULL)
		{
//
// bad property string
//
			UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
			return UT_String();
		}
//
// Remove trailing spaces.
//
		while(*szDelim == ';' || *szDelim == ' ')
		{
			szDelim--;
		}
//
// Calculate the location of the substring
//
		UT_sint32 offset = static_cast<UT_sint32>(reinterpret_cast<size_t>(szLoc) - reinterpret_cast<size_t>(szProps));
		offset += strlen(szWork);
		UT_sint32 iLen = static_cast<UT_sint32>(reinterpret_cast<size_t>(szDelim) - reinterpret_cast<size_t>(szProps)) + 1;
		return UT_String(sPropertyString.substr(offset,(iLen - offset)));
	}
}

void XAP_UnixDialog_FileOpenSaveAs::fileTypeChanged(GtkWidget * w)
{
    if (!m_bSave)
        return;

    UT_sint32 nFileType = XAP_comboBoxGetActiveInt(GTK_COMBO_BOX(w));
    UT_DEBUGMSG(("File type widget is %p filetype number is %d \n",w,nFileType));
    // I have no idea for 0, but XAP_DIALOG_FILEOPENSAVEAS_FILE_TYPE_AUTO
    // definitely means "skip this"
    if((nFileType == 0) || (nFileType == XAP_DIALOG_FILEOPENSAVEAS_FILE_TYPE_AUTO))
    {
        return;
    }

    gchar * filename = gtk_file_chooser_get_filename(m_FC);
    UT_String sFileName = filename;
    FREEP(filename);

    UT_String sSuffix = m_szSuffixes[nFileType-1];
    sSuffix = sSuffix.substr(1,sSuffix.length()-1);
    UT_sint32 i = 0;
    bool bFoundComma = false;
    for(i=0; i< static_cast<UT_sint32>(sSuffix.length()); i++)
    {
        if(sSuffix[i] == ';')
        {
            bFoundComma = true;
            break;
        }
    }
    if(bFoundComma)
    {
        sSuffix = sSuffix.substr(0,i);
    }

//
// Hard code a suffix
//
    if(strstr(sSuffix.c_str(),"gz") != NULL)
    {
        sSuffix = ".zabw";
    }
    bool bFoundSuffix = false;
    for(i= sFileName.length()-1; i> 0; i--)
    {
        if(sFileName[i] == '.')
        {
            bFoundSuffix = true;
            break;
        }
    }
    if(!bFoundSuffix)
    {
        return;
    }
    sFileName = sFileName.substr(0,i);
    sFileName += sSuffix;

    gtk_file_chooser_set_current_name(m_FC, UT_basename(sFileName.c_str()));
}

/*!
 * Assuming a string of standard abiword properties eg. "fred:nerk; table-width:1.0in; table-height:10.in"
 * Add aother propety string, updating previously defined properties with
 * values in the new string.
 */
void UT_String_addPropertyString(UT_String & sPropertyString, const UT_String & sNewProp)
{
	UT_sint32 iSize = static_cast<UT_sint32>(sNewProp.size());
	UT_sint32 iBase  =0;
	UT_String sProp;
	UT_String sVal;
	UT_String sSubStr;
	const char * szWork = NULL;
	const char * szLoc = NULL;
	while(iBase < iSize)
	{
		bool bBreakAtEnd = false;
		sSubStr = sNewProp.substr(iBase, iSize-iBase);
		szWork = sSubStr.c_str();
		szLoc = strstr(szWork,":");
		if(szLoc)
		{
			sProp = sNewProp.substr(iBase,szLoc - szWork);
		}
		else
		{
			break;
		}
		iBase += szLoc-szWork+1;
		sSubStr = sNewProp.substr(iBase, iSize-iBase);
		szWork = sSubStr.c_str();
		szLoc = strstr(szWork,";");
		if(szLoc)
		{
			sVal = sNewProp.substr(iBase,szLoc - szWork);
			iBase += szLoc-szWork+1;
		}
		else
		{
			sVal = sNewProp.substr(iBase,iSize-iBase);
			bBreakAtEnd = true;
		}
		if((sProp.size()>0) && (sVal.size() >0))
		{
			UT_String_setProperty(sPropertyString,sProp,sVal);
		}
		else
		{
			break;
		}
		if(bBreakAtEnd)
		{
			break;
		}
	}
}

IEFileType IE_Imp::fileTypeForSuffixes(const char * suffixList)
{
	IEFileType ieft = IEFT_Unknown;
	if (!suffixList)
		return ieft;

	UT_String utSuffix (suffixList);
	const size_t len = strlen(suffixList);
	size_t i = 0;

	while (true)
		{
			while (i < len && suffixList[i] != '.')
				i++;

			// will never have all-space extension

			const size_t start = i;
			while (i < len && suffixList[i] != ';')
				i++;

			if (i <= len) {
				UT_String suffix (utSuffix.substr(start, i-start).c_str());
				UT_DEBUGMSG(("DOM: suffix: %s\n", suffix.c_str()));
				
				ieft = fileTypeForSuffix (suffix.c_str());
				if (ieft != IEFT_Unknown || i == len)
					return ieft;
				
				i++;
			}
		}
	return ieft;
}

/**
 * Takes a string like "./ObjectReplacements/Object 1" and split it into
 * subdirectory name ("ObjectReplacements") and file name ("Object 1").
 */
void ODi_Abi_Data::_splitDirectoryAndFileName(const gchar* pHRef, UT_String& dirName, UT_String& fileName) const {
    UT_String href;
    UT_String str;
    int iStart, nChars, i, len;
    
    href = pHRef;
    
    ////
    // Get the directory name
    
    str = href.substr(0, 2);
    if (str == "./") {
        iStart = 2;
    } else {
        iStart = 0;
    }

    len = href.length();
    for (i=iStart, nChars=0; i<len; i++) {
        if (href[i] == '/') {
            i=len; // exit loop
        } else {
            nChars++;
        }
    }
    
    UT_ASSERT (nChars > 0 && nChars < len);
    
    dirName = href.substr(iStart, nChars);
    
    ////
    // Get the file name
    
    iStart = iStart + nChars + 1;
    
    nChars = len - iStart;
    
    UT_ASSERT (nChars); // The file name must have at least one char.
    
    fileName = href.substr(iStart, nChars);
}

void UT_LocaleInfo::init (const UT_String & locale)
{
  if (locale.size () == 0)
    return;

  size_t dot    = 0;
  size_t hyphen = 0;

  // take both hyphen types into account
  hyphen = UT_String_findCh (locale, '_');
  if (hyphen == (size_t)-1)
    hyphen = UT_String_findCh (locale, '-');

  dot = UT_String_findCh (locale, '.');

  if (hyphen == (size_t)-1 && dot == (size_t)-1)
    {
      mLanguage = locale.c_str();
      return;
    }

  if (hyphen != (size_t)-1 && dot != (size_t)-1)
    {
      if (hyphen < dot)
	{
	  mLanguage  = locale.substr (0, hyphen).c_str();
	  mTerritory = locale.substr (hyphen+1, dot-(hyphen+1)).c_str();
	  mEncoding  = locale.substr (dot+1, locale.size ()-(dot+1)).c_str();
	}
      else
	{
	  mLanguage = locale.substr (0, dot).c_str();
	  mEncoding = locale.substr (dot+1, locale.size ()-(dot+1)).c_str();
	}
    }
  else if (dot != (size_t)-1)
    {
      mLanguage = locale.substr (0, dot).c_str();
      mEncoding = locale.substr (dot+1, locale.size ()-(dot+1)).c_str();
    }
  else if (hyphen != (size_t)-1)
    {
      mLanguage = locale.substr (0, hyphen).c_str();
      mEncoding = locale.substr (hyphen+1, locale.size ()-(hyphen+1)).c_str();
    }
}

void BIN_ProjectLoader::loadSpriteSheetNames( const STD_String &projectFolder, StringPairCol_t &sheetNames )
{
  // Todo, remove need for PL_FileSpec here!
  PL_FileSpec fileSpec( (projectFolder + "/spriteSheets").c_str() );

  for ( PL_FileSpec::iterator i = fileSpec.begin(), iEnd = fileSpec.end() ; i!=iEnd ; ++i )
  {
    if ( i->GetExtension() == UT_String( "bin" ) )
    {
      UT_String spriteSheetName = i->GetName( false /* no extension */ );

      size_t idx = spriteSheetName.find ( "-" );
      if ( idx != STD_String::npos )
      {
        StringPair_t sheetName;

        sheetName.first = spriteSheetName.substr( 0, idx ).utf8();
        sheetName.second = spriteSheetName.substr( idx+1 ).utf8();

        sheetNames.push_back( sheetName );
      }
    }
  }
}

bool XAP_Win32AppImpl::openURL(const char * szURL)
{
	// NOTE: could get finer control over browser window via DDE 
	// NOTE: may need to fallback to WinExec for old NSCP versions

	UT_String sURL = szURL;

	// If this is a file:// URL, strip off file:// and make it backslashed
	if (sURL.substr(0, 7) == "file://")
	{
		sURL = sURL.substr(7, sURL.size() - 7);

		// View as WebPage likes to throw in an extra /\ just for fun, strip it off
		if (sURL.substr(0, 2) == "/\\")
			sURL = sURL.substr(2, sURL.size() - 2);

		if (sURL.substr(0, 1) == "/")
			sURL = sURL.substr(1, sURL.size() - 1);
		
		// Convert all forwardslashes to backslashes
		for (unsigned int i=0; i<sURL.length();i++)	
			if (sURL[i]=='/')	
                sURL[i]='\\';

		// Convert from longpath to 8.3 shortpath, in case of spaces in the path
		char* longpath = NULL;
		char* shortpath = NULL;
		longpath = new char[PATH_MAX];
		shortpath = new char[PATH_MAX];
		strcpy(longpath, sURL.c_str());
		DWORD retval = GetShortPathName(longpath, shortpath, PATH_MAX);
		if((retval == 0) || (retval > PATH_MAX))
		{
			UT_ASSERT_HARMLESS(UT_SHOULD_NOT_HAPPEN);
			DELETEP(longpath);
			DELETEP(shortpath);
			return false;
		}
		sURL = shortpath;
		DELETEP(longpath);
		DELETEP(shortpath);
	}

	// Query the registry for the default browser so we can directly invoke it
	UT_String sBrowser;
	HKEY hKey;
	unsigned long lType;
	DWORD dwSize;
	unsigned char* szValue = NULL;

	if (RegOpenKeyEx(HKEY_CLASSES_ROOT, "http\\shell\\open\\command", 0, KEY_READ, &hKey) == ERROR_SUCCESS)
	{
		if(RegQueryValueEx(hKey, NULL, NULL, &lType, NULL, &dwSize) == ERROR_SUCCESS)
		{
			szValue = new unsigned char[dwSize + 1];
			RegQueryValueEx(hKey, NULL, NULL, &lType, szValue, &dwSize);
			sBrowser = (char*) szValue;
			DELETEP(szValue);
		}
		RegCloseKey(hKey);
	}

	/* Now that we have sBrowser from the registry, we need to parse it out.
	 * If the first character is a double-quote, everything up to and including
	 * the next double-quote is the sBrowser command. Everything after the
	 * double-quote is appended to the parameters.
	 * If the first character is NOT a double-quote, we assume
	 * everything up to the first whitespace is the command and anything after
	 * is appended to the parameters.
	 */

	int iDelimiter;
	if (sBrowser.substr(0, 1) == "\"")
		iDelimiter = UT_String_findCh(sBrowser.substr(1, sBrowser.length()-1), '"')+2;
	else
		iDelimiter = UT_String_findCh(sBrowser.substr(0, sBrowser.length()), ' ');

	// Store params into a separate UT_String before we butcher sBrowser
	UT_String sParams = sBrowser.substr(iDelimiter+1, sBrowser.length()-iDelimiter+1);
	// Cut params off of sBrowser so all we're left with is the broweser path & executable
	sBrowser = sBrowser.substr(0, iDelimiter);

	// Check for a %1 passed in from the registry.  If we find it,
	// substitute our URL for %1.  Otherwise, just append sURL to params.
	const char *pdest = strstr(sParams.c_str(), "%1");
	if (pdest != NULL)
	{
		int i = pdest - sParams.c_str() + 1;
		sParams = sParams.substr(0, i-1) + sURL + sParams.substr(i+1, sParams.length()-i+1);
	}
	else
	{
		sParams = sParams + " " + sURL;
	}

	// Win95 doesn't like the Browser command to be quoted, so strip em off.
	if (sBrowser.substr(0, 1) == "\"")
		sBrowser = sBrowser.substr(1, sBrowser.length() - 1);
	if (sBrowser.substr(sBrowser.length()-1, 1) == "\"")
		sBrowser = sBrowser.substr(0, sBrowser.length() - 1);
//.........这里部分代码省略.........

/*!
 * Assuming a string of standard abiword properties eg. "fred:nerk; table-width:1.0in; table-height:10.in"
 * Remove the property sProp and it's value from the string of properties. 
 */
void UT_String_removeProperty(UT_String & sPropertyString, const UT_String & sProp)
{
	UT_String sWork ( sProp );
	sWork += ":";
	const char * szWork = sWork.c_str();
	const char * szProps = sPropertyString.c_str();
	const char * szLoc = strstr(szProps,szWork);
	if(szLoc == NULL)
	{
//
// Not here, do nothing
		return ;
	}
//
// Found it, Get left part.
//
	UT_sint32 locLeft = static_cast<UT_sint32>(reinterpret_cast<size_t>(szLoc) - reinterpret_cast<size_t>(szProps));
	UT_String sLeft;
	if(locLeft == 0)
	{
		sLeft.clear();
	}
	else
	{
		sLeft = sPropertyString.substr(0,locLeft);
	}
	locLeft = static_cast<UT_sint32>(sLeft.size());
	if(locLeft > 0)
	{
//
// If this element is the last item in the properties there is no "; ".
//
// Remove trailing ';' and ' '
//
		locLeft--;
		while(locLeft >= 0 && (sLeft[locLeft] == ';' || sLeft[locLeft] == ' '))
		{
			locLeft--;
		}
	}
	UT_String sNew;
	if(locLeft > 0)
	{
		sNew = sLeft.substr(0,locLeft+1);
	}
	else
	{
		sNew.clear();
	}
//
// Look for ";" to get right part
//
	const char * szDelim = strchr(szLoc,';');
	if(szDelim == NULL)
	{
//
// No properties after this, just assign and return
//
		sPropertyString = sNew;
	}
	else
	{
//
// Just slice off the properties and tack them onto the pre-existing sNew
//
		while(*szDelim == ';' || *szDelim == ' ')
		{
			szDelim++;
		}
		UT_sint32 offset = static_cast<UT_sint32>(reinterpret_cast<size_t>(szDelim) - reinterpret_cast<size_t>(szProps));
		UT_sint32 iLen = sPropertyString.size() - offset;
		if(sNew.size() > 0)
		{
			sNew += "; ";
		}
		sNew += sPropertyString.substr(offset,iLen);
		sPropertyString = sNew;
	}
}

static bool _getTranslationCode (FV_View * pView, UT_String & langCode)
{
  XAP_Frame * pFrame = static_cast<XAP_Frame *> (pView->getParentData());
  UT_return_val_if_fail(pFrame,false);
  
  bool bRet = false;

  pFrame->raise();
  
  XAP_Dialog_Id id = XAP_DIALOG_ID_LANGUAGE;
  
  XAP_DialogFactory * pDialogFactory
    = static_cast<XAP_DialogFactory *>(pFrame->getDialogFactory());

  XAP_Dialog_Language * pDialog
    = static_cast<XAP_Dialog_Language *>(pDialogFactory->requestDialog(id));
  UT_return_val_if_fail(pDialog,false);

  UT_String code ("en-US");
  
  const gchar ** props_in = NULL;
  if (pView->getCharFormat(&props_in))
    {
      const gchar * xml_code = UT_getAttribute("lang", props_in);
      if ( xml_code )
	{
	  code = xml_code ;
	  if ( code.size() >= 2 )
	    {
	      code = code.substr (0, 2);
	      code += '_';
	    }
	}
      
      pDialog->setLanguageProperty(UT_getAttribute("lang", props_in));
      FREEP(props_in);
    }
  
  // run the dialog  
  pDialog->runModal(pFrame);
  
  // extract what they did  
  bool bOK = (pDialog->getAnswer() == XAP_Dialog_Language::a_OK);
  
  if (bOK)
    {
      const gchar * s;
      if (pDialog->getChangedLangProperty(&s))
	{
	  UT_String changedLang = s;
	  if (changedLang.size() >= 2)
	    {
	      code += changedLang.substr(0, 2);
	      langCode = code;
	      bRet = true;
	    }
	}
    }

  pDialogFactory->releaseDialog(pDialog);

  return bRet;
}