/********************************************************************** * $Id: gmlreadstate.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  GML Reader * Purpose:  Implementation of GMLReadState class. * Author:   Frank Warmerdam, warmerdam@pobox.com * ********************************************************************** * Copyright (c) 2002, Frank Warmerdam * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: *  * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. *  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER  * DEALINGS IN THE SOFTWARE. ****************************************************************************/#include "gmlreaderp.h"#include "cpl_conv.h"#include "cpl_string.h"/************************************************************************//*                            GMLReadState()                            *//************************************************************************/GMLReadState::GMLReadState(){    m_poFeature = NULL;    m_poParentState = NULL;    m_pszPath = CPLStrdup("");    m_nPathLength = 0;    m_papszPathComponents = NULL;}/************************************************************************//*                           ~GMLReadState()                            *//************************************************************************/GMLReadState::~GMLReadState(){    CPLFree( m_pszPath );    for( int i = 0; i < m_nPathLength; i++ )        CPLFree( m_papszPathComponents[i] );    CPLFree( m_papszPathComponents );}/************************************************************************//*                              PushPath()                              *//************************************************************************/void GMLReadState::PushPath( const char *pszElement ){    m_nPathLength++;    m_papszPathComponents = CSLAddString( m_papszPathComponents, pszElement );    RebuildPath();}/************************************************************************//*                              PopPath()                               *//************************************************************************/void GMLReadState::PopPath(){    CPLAssert( m_nPathLength > 0 );    if( m_nPathLength <= 0 )        return;    CPLFree( m_papszPathComponents[m_nPathLength-1] );    m_papszPathComponents[--m_nPathLength] = NULL;    RebuildPath();}/************************************************************************//*                            RebuildPath()                             *//************************************************************************/void GMLReadState::RebuildPath(){    int   nLength=0, i;    for( i = 0; i < m_nPathLength; i++ )        nLength += strlen(m_papszPathComponents[i]) + 1;        m_pszPath = (char *) CPLRealloc(m_pszPath, nLength );    nLength = 0;    for( i = 0; i < m_nPathLength; i++ )    {        if( i > 0 )            m_pszPath[nLength++] = '|';        strcpy( m_pszPath + nLength, m_papszPathComponents[i] );        nLength += strlen(m_papszPathComponents[i]);    }}/************************************************************************//*                          GetLastComponent()                          *//************************************************************************/const char *GMLReadState::GetLastComponent() const{    if( m_nPathLength == 0 )        return "";    else        return m_papszPathComponents[m_nPathLength-1];}/************************************************************************//*                             MatchPath()                              *//*                                                                      *//*      Compare the passed in path to the current one and see if        *//*      they match.  It is assumed that the passed in path may          *//*      contain one or more elements and must match the tail of the     *//*      current path.  However, the passed in path does not need all    *//*      the components of the current read state path.                  *//*                                                                      *//*      Returns TRUE if the paths match.                                *//************************************************************************/int GMLReadState::MatchPath( const char *pszPathIn ){    int iOffset;    int nInputLength = strlen(pszPathIn);    int nInternalLength = strlen(m_pszPath);    if( nInputLength > nInternalLength )        return FALSE;    iOffset = nInternalLength - nInputLength;    if( iOffset > 0 && m_pszPath[iOffset-1] != '|' )        return FALSE;    return strcmp(pszPathIn,m_pszPath + iOffset) == 0;}