src/dom/CharacterDataImpl.cpp

/*
 * The Apache Software License, Version 1.1
 * 
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
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 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 * 
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact apache\@apache.org.
 * 
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
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 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ====================================================================
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 * This software consists of voluntary contributions made by many
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 * originally based on software copyright (c) 1999, International
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/**
 * $Log$
 * Revision 1.3  1999/12/03 00:11:22  andyh
 * Added DOMString.clone() to node parameters in and out of the DOM,
 * where they had been missed.
 *
 * DOMString::rawBuffer, removed incorrect assumptions about it
 * being null terminated.
 *
 * Revision 1.2  1999/11/30 21:16:24  roddey
 * Changes to add the transcode() method to DOMString, which returns a transcoded
 * version (to local code page) of the DOM string contents. And I changed all of the
 * exception 'throw by pointer' to 'throw by value' style.
 *
 * Revision 1.1.1.1  1999/11/09 01:08:41  twl
 * Initial checkin
 *
 * Revision 1.2  1999/11/08 20:44:11  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */

#include "CharacterDataImpl.hpp"
#include "DOM_DOMException.hpp"


CharacterDataImpl::CharacterDataImpl(DocumentImpl *ownerDoc, const DOMString &nam,
                                     short nTyp, const DOMString &data) :
NodeImpl(ownerDoc, nam, nTyp, true, data)
{
};

CharacterDataImpl::CharacterDataImpl(const CharacterDataImpl &other, bool deep)
: NodeImpl(other, deep)
{
};


CharacterDataImpl::~CharacterDataImpl() {
};



void CharacterDataImpl::appendData(const DOMString &data)
{
    if(readOnly)
        throw DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    
    value.appendData(data);
};


NodeImpl *CharacterDataImpl::cloneNode(bool deep)
{
    return new CharacterDataImpl(*this, deep);
};


void CharacterDataImpl::deleteData(int offset, int count)
{
    if (readOnly)
        throw DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    if (count < 0)
        throw DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    
    //int tailLength = Math.max(value.length() - count - offset, 0);
    //try
    //{
    //      value = value.substring(0, offset) + (tailLength > 0 ? value.substring(offset + count, offset + count + tailLength) : "");
    //}
    //catch (StringIndexOutOfBoundsException e)
    //{
    //      throw DOM_DOMException(DOMException.INDEX_SIZE_ERR, null);
    
    int len = value.length();
    if (offset < 0 || offset >= len)
        throw DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    value.deleteData(offset, count);
};



DOMString &CharacterDataImpl::getData()
{
    return value; 
};


//
//  getCharDataLength - return the length of the character data string.
//                      Note:  in the public DOM API, the name of this method
//                      is getLength(), but has been renamed here to avoid a
//                      conflict with NodeListImpl::getLength().  The conflict
//                      occurs because NodeListImpl is a base class of us.
//                      DOM_CharData::getLength() delegates to this method, so
//                      all of the names are correct from an external API
//                      point of view.
//
int CharacterDataImpl::getCharDataLength()
{
    return value.length();
};



void CharacterDataImpl::insertData(int offset, const DOMString &data) 
{
    
    if (readOnly)
        throw DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    
    if (offset<0 || offset>value.length())
        throw DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    value.insertData(offset, data);
}



void CharacterDataImpl::replaceData(int offset, int count, const DOMString &data)
{
    if (readOnly)
        throw DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    deleteData(offset, count);
    insertData(offset, data);
};




void CharacterDataImpl::setData(const DOMString &arg)
{
    if (readOnly)
        throw DOM_DOMException(DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    value = arg.clone();
};





DOMString CharacterDataImpl::substringData(int offset, int count)
{
    
    if(count < 0 || offset < 0 || offset > value.length()-1)
        throw DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR,null);
    
    return value.substringData(offset, count);
};