treekey.cpp

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/******************************************************************************
 *
 *  treekey.cpp -   code for class 'versekey'- a standard Biblical
 *          verse key
 *
 * $Id: treekey.cpp 3808 2020-10-02 13:23:34Z scribe $
 *
 * Copyright 2002-2013 CrossWire Bible Society (http://www.crosswire.org)
 *  CrossWire Bible Society
 *  P. O. Box 2528
 *  Tempe, AZ  85280-2528
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation version 2.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 */


#include <treekey.h>
#include <utilstr.h>
#include <string.h>

SWORD_NAMESPACE_START

static const char *classes[] = {"TreeKey", "SWKey", "SWObject", 0};
static const SWClass classdef(classes);

void TreeKey::init() {
    myClass = &classdef;
    unsnappedKeyText = "";
    posChangeListener = 0;
}


void TreeKey::assureKeyPath(const char *keyBuffer) {

    if (!keyBuffer) {
        keyBuffer = unsnappedKeyText;
        //assert we have something to do before setting root
        if (!*keyBuffer)
            return;
    }

    char *keybuf = 0;
    stdstr(&keybuf, keyBuffer);

    root();

    // TODO: change to NOT use strtok. strtok is dangerous.
    SWBuf tok = strtok(keybuf, "/");
    tok.trim();
    while (tok.size()) {
        bool foundkey = false;
        if (hasChildren()) {
            firstChild();
            if (tok == getLocalName()) {
                foundkey = true;
            }
            else {
                while (nextSibling()) {
                    if (getLocalName()) {
                        if (tok == getLocalName()) {
                            foundkey = true;
                            break;
                        }
                    }
                }
            }
            if (!foundkey) {
                append();
                setLocalName(tok);
                save();     
            }
        }
        else {
            appendChild();
            setLocalName(tok);
            save();
        }

#ifdef DEBUG
//      std::cout << getLocalName() << " : " << tok << std::endl;
#endif

        tok = strtok(0, "/");
        tok.trim();

    }
    delete [] keybuf;
}


SWORD_NAMESPACE_END