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XMLLib for PUGXML with XPath

, 29 Oct 2009 CPOL
A library for PugXML which implements XPath
//************************************************************************************************************************** 
//* Blue - General Purpose C++ Library
//* Copyright (c) 2002-2003 Josh Harler
//* 
//* This software is provided 'as-is', without any express or implied warranty. In no event
//* will the authors be held liable for any damages arising from the use of this software.
//* 
//* Permission is granted to anyone to use this software for any purpose, including commercial
//* applications, and to alter it and redistribute it freely, subject to the following restrictions:
//* 
//* 	1. The origin of this software must not be misrepresented; you must not claim that you
//* 	wrote the original software. If you use this software in a product, an acknowledgment in the
//* 	product documentation would be appreciated but is not required.
//* 
//* 	2. Altered source versions must be plainly marked as such, and must not be misrepresented as
//* 	being the original software.
//* 
//* 	3. This notice may not be removed or altered from any source distribution.
//*
//*

//* file   Util/StringTokenizer.cpp
//**

// Private Headers =========================================================================================================

// matching header
#include "StringTokenizer.h"


// Private Defines/Enums/Typedefs/Etc ======================================================================================

// Private Classes/Structs =================================================================================================

// Private Global Variables ================================================================================================

// External Global Variables ===============================================================================================

// Private Functions =======================================================================================================

// Functions ===============================================================================================================

namespace blue 
{
    namespace util 
    {
        // ---------------------------------------------------------------------------------------------------------------------
        
        StringTokenizer::StringTokenizer()
        {
        }
        
        // ---------------------------------------------------------------------------------------------------------------------
        
        StringTokenizer::StringTokenizer(const StringTokenizer& copy)
        {
        }
        
        // ---------------------------------------------------------------------------------------------------------------------
        
        StringTokenizer::~StringTokenizer()
        {
        }
        
        // ---------------------------------------------------------------------------------------------------------------------
        
        Array < BString> StringTokenizer::tokenize(BString str, BString delimiters, flags32_t flags)
        {
            Array < BString> results;
            Array < container*> contains(5);
            int containIdx = -1;
            int lastDelimit = 0;
            
            for (int i = 0; i < str.getLength(); ++i)
            {
                bool skipContainers = false;
                
                if (containIdx >= 0)
                {
                    BString containEnd = contains[containIdx]->m_end;
                    if (str.subString(i, containEnd.getLength()) == containEnd)
                    {
                        --containIdx;
                        skipContainers = true;
                    }
                    else 
                    {
                        skipContainers = (contains[containIdx]->m_type == EXCLUSIVE);
                    }
                }
                
                if (containIdx < 0)
                {
                    char ch = str[i];
                    for (int iD = 0; iD < delimiters.getLength(); ++iD)
                    {
                        if (ch == delimiters[iD])
                        {
                            if (lastDelimit != i)
                            {
                                BString token = str.subString(lastDelimit, i - lastDelimit);
                                if (!(flags & NO_WHITESPACE) || token.trim().getLength() > 0)
                                {
                                    results.append((flags & TRIM_RESULTS ? token.trim() : token));
                                }
                            }
                            
                            if (flags & KEEP_DELIMITERS)
                            {
                                results.append(str.subString(i, 1));
                            }
                            lastDelimit = i + 1;
                            break;
                        }
                    }
                }
                
                if (!skipContainers)
                {
                    for (int iC = 0; iC < m_containers.getSize(); ++iC)
                    {
                        BString beg = m_containers[iC].m_beg;
                        if (str.subString(i, beg.getLength()) == beg)
                        {
                            if (contains.getSize() == containIdx + 1)
                            {
                                contains.resize(contains.getSize() * 2);
                            }
                            
                            contains[++containIdx] = &m_containers[iC];
                            break;
                        }
                    }
                }
            }
            
            if (lastDelimit < str.getLength())
            {
                BString token = str.subString(lastDelimit);
                if (!(flags & NO_WHITESPACE) || token.trim().getLength() > 0)
                {
                    results.append((flags & TRIM_RESULTS ? token.trim() : token));
                }
            }
            
            return (results);
        }
        
        // ---------------------------------------------------------------------------------------------------------------------
        
        void StringTokenizer::addContainer(BString begin, BString end, container_type_e type)
        {
            container contain;
            contain.m_beg  = begin;
            contain.m_end  = end;
            contain.m_type = type;
            
            m_containers.append(contain);
        }
}
}	// namespaces

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