view/malonnote/mnModel.cpp

#include "mnDef.h"
#include "mnModel.h"
#include <wx/dir.h>
#include <wx/regex.h>
#include <iconv.h>
#include <ctype.h>

static void   toLower(char* string);
static char*  decode(const char* string);
static char*  encode(const char* string);
static int    compWikiData(const void* wiki1, const void* wiki2);


/******* WikiList ************************/
#include <wx/listimpl.cpp>
WX_DEFINE_LIST(WikiList);


/******* mnModel ************************/

mnModel::mnModel(const char* dataDir)
{
        wxCSConv conv(wxT(CODE_SET_SYSTEM));

    wikiDataDir = new wxString(dataDir, conv);
        searchStrList = new wxArrayString();
}

mnModel::~mnModel()
{
        delete wikiDataDir;
}

/* 
 * iconv encode and create token list, 
 * so you must free tokenLis after you used 
 *
 * if failed to make token list, return FALSE.
 */
bool mnModel::makeSearchToken(const char* searchStr, char* tokenList[])
{
        iconv_t     codeSet;
        char        outbuf[MAX_BUF_SIZE];
        const char* inbufPtr   = searchStr;
        char*       outbufPtr  = outbuf;
        int         inbufSize  = strlen(searchStr);
        int         outbufSize = sizeof(outbuf);
        char*       token;
        int         i;

        memset(outbuf, 0, outbufSize);
        codeSet = iconv_open(CODE_SET_EUC_JP, CODE_SET_SYSTEM);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }
        iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
        iconv_close(codeSet);

        /* searchStr to Tokens */
        token = strtok(outbuf, " ");
        if(token == NULL) return false;
        tokenList[0] = (char*)malloc(strlen(token)+1);
        snprintf(tokenList[0], strlen(token)+1, "%s", token);
        i = 1;
        while((token = strtok(NULL, " ")) != NULL) {
                tokenList[i] = (char*)malloc(strlen(token)+1);
                snprintf(tokenList[i], strlen(token)+1, "%s", token);
                i++;
                if(i >= MAX_TOKEN) break;
        }
        return true;
}

bool mnModel::matchWithToken(wxString* fileName, char* tokenList[])
{
        const char* decodeFileName;
        char decodeFileNameBuf[MAX_BUF_SIZE];
    wxString    fullPathName;
        FILE*       fp;
        bool        ans = false;
        bool        found;

    fullPathName = *wikiDataDir + wxT("/") + *fileName;
        fp = fopen((const char*)fullPathName.mb_str(), "r");
        if(fp == NULL) {
                return false;  /* because of removed */
        }

        /* TYPE search */
        if(strstr(tokenList[0], TYPESEARCH_TAG) == tokenList[0])
        {
                found = typeSearch(tokenList[0], fp);
                if(found){
                        ans = true;
                }
        }
        /* Normal search */
        else{
                decodeFileName = decode(fileName->mb_str());
                snprintf(decodeFileNameBuf, MAX_BUF_SIZE, "%s", decodeFileName);
                toLower(decodeFileNameBuf);
                found = normalSearch(tokenList, fp, decodeFileNameBuf);
                if(found){
                        ans = true;
                }
        }
        fclose(fp);

        return ans;
}

WikiList* mnModel::search(const char* searchStr)
{
        int         i;
        wxDir*      dir;
        WikiData*   wikiData;
    WikiList*   list = new WikiList();
    wxString*   fileName = new wxString();
        char*       tokenList[MAX_TOKEN];

        memset(tokenList, 0, sizeof(char*)*MAX_TOKEN);
        if( makeSearchToken(searchStr, tokenList) == false) return list;

        dir = new wxDir(*wikiDataDir);
    if ( !dir->IsOpened() )
    {
                MN_FATAL_ERROR(wxT("wxDir has faild\n"));
        return NULL;
    }

    bool cont = dir->GetFirst(fileName, wxT("*.txt"), wxDIR_FILES);
        while(cont){

                if( matchWithToken(fileName, tokenList) ) { /* match with token list */
                        wikiData = new WikiData(wikiDataDir, fileName);
                        list->Append(wikiData);
                }

        cont = dir->GetNext(fileName);
        }

        delete dir;
        delete fileName;
        for(i = 0; tokenList[i] != NULL; i++) free(tokenList[i]);

        list->Sort(compWikiData);
        return list;
}

/*
 *  add malon-type:xxx to search list
 */
void mnModel::group()
{
        wxCSConv    conv(wxT(CODE_SET_SYSTEM));
    char        buf[MAX_BUF_SIZE];
        wxDir*      dir;
        FILE*       fp;
    wxString*   fileName = new wxString();
    wxString    fullPathName;
        int         typeTagLen = strlen(TYPE_TAG);
        char*       token;
        char*           inbufPtr;
        int         inbufSize;
        char        outbuf[MAX_BUF_SIZE];
        char*       outbufPtr = outbuf;
        int         outbufSize;
        wxString*   typeToken;
        char*       ptr;
        int         i;

        iconv_t codeSet = iconv_open(CODE_SET_SYSTEM, CODE_SET_EUC_JP);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }

        dir = new wxDir(*wikiDataDir);
    if ( !dir->IsOpened() )
    {
                MN_FATAL_ERROR(wxT("wxDir has faild\n"));
        return ;
    }
    bool cont = dir->GetFirst(fileName, wxT("*.txt"), wxDIR_FILES);
        while(cont){
        fullPathName = *wikiDataDir + wxT("/") + *fileName;
                fp = fopen((const char*)fullPathName.mb_str(), "r");
                if(fp == NULL) {
                        MN_FATAL_ERROR(wxT("fopen faild"));
                }
                while(1) {
                        memset(buf, 0, MAX_BUF_SIZE);
                        fgets(buf, MAX_BUF_SIZE, fp);
                        if(buf[0] == 0) break;
                        if(strstr(buf, TYPE_TAG)){
                                ptr = &buf[typeTagLen];
                                while((token = strtok(ptr, " /\r\n:"))!= NULL) {
                                        memset(outbuf, 0, MAX_BUF_SIZE);
                                        snprintf(outbuf, MAX_BUF_SIZE, "%s", TYPESEARCH_TAG);
                                        inbufPtr = token;
                                        inbufSize = strlen(token);
                                        outbufPtr = &outbuf[strlen(TYPESEARCH_TAG)];
                                        outbufSize = sizeof(outbuf) - strlen(TYPESEARCH_TAG);
                                        iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);

                                        typeToken = new wxString(outbuf, conv);
                                        if( addSearchStr(typeToken) ) {
                                                WikiList* wikiList = search(typeToken->mb_str());
                                                addSearchList(typeToken, wikiList);
                                        }
                                        delete typeToken;
                                        ptr = NULL;
                                }
                        }
                }
                fclose(fp);
        cont = dir->GetNext(fileName);
        }
        delete dir;
        delete fileName;
        iconv_close(codeSet);
}

bool mnModel::normalSearch(char* tokenList[], FILE*fp, char* decodeFileNameBuf)
{
    char        buf[MAX_BUF_SIZE];
        bool        found;
        int         i;
        while(1){
        memset(buf, 0, MAX_BUF_SIZE);
        fread(buf, MAX_BUF_SIZE-1, 1, fp);
        if(buf[0] == 0) break;
                toLower(buf);
                found = TRUE;
                for(i = 0; tokenList[i] != NULL; i++){
                        toLower(tokenList[i]);
                        if(strstr((const char*)buf, (const char*)tokenList[i]) ||                 /* search in file context */
                                strstr((const char*)decodeFileNameBuf, (const char*)tokenList[i]) ||  /* search in file name    */
                                strcmp((const char*)tokenList[i], (const char*)ALLMEMO_TAG) == 0) {   /* SHOW  ALL MEMO         */
                                found = TRUE;
                        }
                        else {
                                found = FALSE;
                                break;
                        }
                }

                if(found){ /* all tokens found */
                        break;
                }
        buf[0] = 0;
        }

        return found;
}

bool mnModel::typeSearch(char* typeStr, FILE*fp)
{
    char        buf[MAX_BUF_SIZE];
        bool        found;
        int         i;
        char*       typeToken;
        char        typeStrCopy[MAX_BUF_SIZE];

        snprintf(typeStrCopy, MAX_BUF_SIZE, "%s", typeStr);
        while(1){
        memset(buf, 0, MAX_BUF_SIZE);
        fgets(buf, MAX_BUF_SIZE, fp);
        if(buf[0] == 0) break;
                if(strstr((const char*)buf, TYPE_TAG)){  /* search TYPE line */
                        typeToken = strtok(typeStrCopy, ":");
                        typeToken = strtok(NULL, ":");    /* second field separated by colon(:) */
                        if(typeToken == NULL) return false;
                        toLower(typeToken);
                        toLower(buf);
                        if(strstr(buf, typeToken)) return true;
                }
        }
        return false;
}

bool mnModel::addSearchStr(wxString* searchStr)
{
        wxString *string;

        if(searchStrList->Index(searchStr->c_str()) == wxNOT_FOUND){
                string = new wxString(searchStr->c_str());
                searchStrList->Add(*string, 1);
                //searchStrList->Insert(*string, 0);
                return true;  /* Add */
        }
        return false; /* does'nt add because of duplicating */
}

void mnModel::addSearchList(wxString* searchStr, WikiList* list)
{
        wikiHash[*searchStr] = list;
}

void mnModel::removeSearchStr(wxString searchStr)
{
        if(searchStrList->Index(searchStr.c_str()) != wxNOT_FOUND) {
                searchStrList->Remove(searchStr.c_str());
                wikiHash[*searchStr] = NULL;
        }
}

void mnModel::modSearchStr(wxString* oldStr, wxString* newStr)
{
        int index;

        if((index = searchStrList->Index(oldStr->c_str())) != wxNOT_FOUND){
                wxString& itemStr = searchStrList->Item(index);
                itemStr.sprintf(wxT("%s"), newStr->c_str());
        }
}

void mnModel::clearSearchStrList()
{
        searchStrList->Clear();
}

void mnModel::clearSearchResultList()
{
        wikiHash.clear();
}

const wxString* mnModel::getWikiDataDir()
{
        return wikiDataDir;
}

const wxArrayString* mnModel::getSearchStrList()
{
        return searchStrList;
}

WikiData* mnModel::newWikiData()
{
        WikiData* data = new WikiData(wikiDataDir);

        return data;
}
const WikiList* mnModel::getSearchResultList(wxString* searchStr)
{
        return wikiHash[*searchStr];
}

/* add "addData's" clone. if already exist same data, overwrite it*/
void mnModel::addSearchResultList(wxString* searchStr, WikiData* addData)
{
        WikiList* wikiList = wikiHash[*searchStr];
        WikiList::Node* node;
        WikiData* data;

        if(wikiList == NULL) {
                MN_FATAL_ERROR(wxT("wikiList is null"));
                return;
        }

        node = wikiList->GetFirst();
        while(node) {
                data = node->GetData();
                if(data == addData) return;
                if( *(data->getSubject()) == *(addData->getOldSubject()) ) {
                        if(wikiList->DeleteObject(data)) {
                                //delete data; /* may be wrong.. */
                                break;
                        }
                        else {
                                MN_FATAL_ERROR(wxT("Can't find delete data"));
                        }
                }
                node = node->GetNext();
        }
        WikiData* copy = new WikiData((wxString*)wikiDataDir, (wxString*)addData->getFileName());
        wikiList->Append(copy);
        wikiList->Sort(compWikiData);
}

bool mnModel::delSearchResultList(wxString* searchStr, WikiData* delData)
{
        WikiList* wikiList = wikiHash[*searchStr];
        WikiList::Node* node;
        WikiData* data;
        bool      found = false;

        if(wikiList == NULL) {
                MN_FATAL_ERROR(wxT("wikiList is null"));
                return false;
        }

        node = wikiList->GetFirst();
        while(node) {
                data = node->GetData();
                if(data == delData) {
                        if(!wikiList->DeleteObject(data)) {
                                MN_FATAL_ERROR(wxT("Can't find delete data"));
                        }
                        found = true;
                        break;
                }
                else if( *(data->getSubject()) == *(delData->getOldSubject()) ) {
                        if(wikiList->DeleteObject(data)) {
                                //delete data;  /* may be wrong.. */
                                found = true;
                                break;
                        }
                        else {
                                MN_FATAL_ERROR(wxT("Can't find delete data"));
                        }
                }
                node = node->GetNext();
        }
        wikiList->Sort(compWikiData);
        return found;
}

/******* WikiData ************************/
WikiData::WikiData(wxString* dataDir, wxString* inFileName)
{
        FILE* fp;
    wxString    fullPathName;
        char* decodeStr;
        char  buf[MAX_BUF_SIZE];
        char* inbuf;
        int   inbufSize;
        char  outbuf[MAX_BUF_SIZE];
        char* outbufPtr = outbuf;
        int   outbufSize;
        wxCSConv conv(wxT(CODE_SET_SYSTEM));

        iconv_t codeSet = iconv_open(CODE_SET_SYSTEM, CODE_SET_EUC_JP);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }

        text = NULL;
        memset(outbuf, 0, MAX_BUF_SIZE);
        fileName = new wxString(inFileName->mb_str(), conv);
        dataDirName = new wxString(dataDir->mb_str(), conv);
        decodeStr = decode(fileName->mb_str());
        inbufSize = strlen(decodeStr);
        outbufSize = sizeof(outbuf);
        iconv(codeSet, (ICONV_CONST char**)&decodeStr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
        subject  = new wxString((const char*)outbuf, conv);
        oldSubject  = new wxString((const char*)outbuf, conv);
        iconv_close(codeSet);

        date     = NULL;

    fullPathName = *dataDir + wxT("/") + *fileName;
        fp = fopen((const char*)fullPathName.mb_str(), "r");
        if(fp == NULL) {
                MN_FATAL_ERROR(wxT("fopen faild"));
        }
        while(fgets(buf, MAX_BUF_SIZE, fp)) {
                if(strstr( (const char*)buf, (const char*)DATE_TAG)) {
                        strtok(buf, "\n");
                        strtok(buf, "\r");
                        date = new wxString((const char*)buf, conv);
                        break;
                }
        }
        fclose(fp);

        isWriteToFile = true;
}

WikiData::WikiData(wxString* dataDir) {
        FILE*      fp;
        time_t     now;
        char       buf[MAX_BUF_SIZE];
        char       fname[MAX_BUF_SIZE];
        char       templateBuf[MAX_BUF_SIZE];
        char*      inbufPtr;
        int        inbufSize;
        char       outbuf[MAX_BUF_SIZE];
        char*      outbufPtr;
        int        outbufSize;
        wxCSConv   conv(wxT(CODE_SET_SYSTEM));

        dataDirName = new wxString(dataDir->mb_str(), conv);

    time(&now);
        memset(buf, 0, sizeof(buf));
        strftime(buf, sizeof(buf), "%Y/%m/%d-%H%M%S",localtime(&now));
        subject  = new wxString(buf, conv);
        oldSubject  = new wxString(buf, conv);

        fileName = new wxString(encode(buf), conv);
        fileName->Append(wxT(EXT_TAG));

        memset(buf, 0, sizeof(buf));
        strftime(buf, sizeof(buf), DATE_TAG "%Y/%m/%d %H:%M:%S",localtime(&now));
        date    = new wxString(buf, conv);

        /* try to open template file */
        snprintf(fname, sizeof(fname), "%s/%s", (const char*)(dataDir->mb_str()), NEW_DATA_TEMPLATE);
        fp = fopen(fname, "r");
        if(fp == NULL){
                memset(buf, 0, sizeof(buf));
                strftime(buf, sizeof(buf), NEW_DATA,localtime(&now));
        }
        else {
                memset(buf, 0, sizeof(buf));
                memset(templateBuf, 0, sizeof(templateBuf));
                memset(outbuf, 0, sizeof(outbuf));
                fread(templateBuf, sizeof(templateBuf), 1, fp);
        
                iconv_t codeSet = iconv_open(CODE_SET_SYSTEM, CODE_SET_EUC_JP);
                if(codeSet == (iconv_t)-1) {
                        MN_FATAL_ERROR(wxT("failed iconv_open"));
                }
                inbufPtr = templateBuf;
            outbufPtr = outbuf;
                inbufSize = strlen(templateBuf);
                outbufSize = sizeof(outbuf);
                iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
                
                strftime(buf, sizeof(buf), outbuf,localtime(&now));

        }
        text    = new wxString(buf, conv);

        if(fp) fclose(fp);

        isWriteToFile = false;
}

WikiData::~WikiData()
{
        delete subject;
        delete oldSubject;
        delete fileName;
        delete date;
        delete text;
        delete dataDirName;
}

const wxString* WikiData::getFileName() 
{
        return fileName;
}

const wxString* WikiData::getSubject() 
{
        return subject;
}

const wxString* WikiData::getOldSubject() 
{
        return oldSubject;
}

void WikiData::setOldSubjectFromCurrent() 
{
        oldSubject = new wxString(*subject);
}

void WikiData::modSubject(wxString* newSubject) 
{
        wxCSConv    conv(wxT(CODE_SET_SYSTEM));
        wxString*   oldFileName = fileName;
        char        oldFullPath[MAX_BUF_SIZE];
        char        newFullPath[MAX_BUF_SIZE];
        iconv_t     codeSet;
        char        outbuf[MAX_BUF_SIZE];
        char        inbuf[MAX_BUF_SIZE];
        const char* inbufPtr  = inbuf;
        char*       outbufPtr = outbuf;
        int         inbufSize;
        int         outbufSize = sizeof(outbuf);
        FILE*       fp;

        oldSubject = subject;

        memset(outbuf, 0, outbufSize);
        memset(inbuf,  0, sizeof(inbuf));
        strcpy(inbuf, (const char*)newSubject->mb_str());
        inbufSize = strlen(inbuf);
        codeSet = iconv_open(CODE_SET_EUC_JP, CODE_SET_SYSTEM);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }
        iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
        iconv_close(codeSet);
        subject  = new wxString(newSubject->c_str());
        fileName = new wxString(encode(outbuf), conv);
        fileName->Append(wxT(EXT_TAG));

        sprintf(oldFullPath, "%s/%s", (const char*)dataDirName->mb_str(), (const char*)oldFileName->mb_str());
        sprintf(newFullPath, "%s/%s", (const char*)dataDirName->mb_str(), (const char*)fileName->mb_str());

        if((fp = fopen(newFullPath, "r")) == NULL) {
                if(rename(oldFullPath, newFullPath) < 0) wxLogMessage(wxT("rename error: errno=[%d]"), errno);
        }
        else if(strcmp(oldFullPath, newFullPath)){
                wxLogMessage(wxT("File has already exist. [%s]"), fileName->c_str());
                fclose(fp);
        }
        else {
                fclose(fp);
        }

        delete oldFileName;
}

const wxString* WikiData::getDate() 
{
        return date;
}


const wxString* WikiData::getText() 
{
        FILE* fp;
        char  buf[MAX_BUF_SIZE];
        char  fullPath[MAX_BUF_SIZE];
        iconv_t     codeSet;
        char        outbuf[MAX_BUF_SIZE];
        char*       inbufPtr;
        char*       outbufPtr;
        int         inbufSize;
        int         outbufSize;
        wxCSConv    conv(wxT(CODE_SET_SYSTEM));
        wxString*   tmpStr;

        codeSet = iconv_open(CODE_SET_SYSTEM, CODE_SET_EUC_JP);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }

        if(text && isWriteToFile == true) {
                delete text;
                text = NULL;
        }
        else if(text && isWriteToFile == false) {
                return text;
        }

        text = new wxString();
        sprintf(fullPath, "%s/%s", (const char*)dataDirName->mb_str(), (const char*)fileName->mb_str());
        fp = fopen(fullPath, "r");
        if(fp == NULL) {
                MN_FATAL_ERROR(wxT("File open error."));
        }

        while(fgets(buf, MAX_BUF_SIZE, fp)) {
                inbufPtr = buf;
                inbufSize = sizeof(buf);
                outbufPtr = outbuf;
                outbufSize = sizeof(outbuf);
                memset(outbuf, 0, outbufSize);
                iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
                tmpStr = new wxString((char*)outbuf, conv);
                *text += *tmpStr;
                delete tmpStr;
        }
        iconv_close(codeSet);
        fclose(fp);

        return text;
}

void WikiData::modText(wxString* intext) 
{
        wxCSConv conv(wxT(CODE_SET_SYSTEM));
        delete text;
        //text = new wxString(intext->c_str());
        //text = new wxString(*intext);
        text = new wxString(intext->mb_str(), conv);
}

void WikiData::removeDataFile()
{
        char fullPath[MAX_BUF_SIZE];
        
        sprintf(fullPath, "%s/%s", (const char*)dataDirName->mb_str(), (const char*)fileName->mb_str());
        if(remove(fullPath)) {
                MN_FATAL_ERROR(wxT("remove file error"));
        }
}

void WikiData::save() 
{
        char fullPath[MAX_BUF_SIZE];
        FILE* fp;
        iconv_t     codeSet;
        char*        inbuf;
        char*        outbuf;
        const char*  inbufPtr;
        char*       outbufPtr;
        int         inbufSize;
        int         outbufSize;

        inbuf  = (char*)malloc(MAX_WIKI_TEXT_SIZE);
        outbuf = (char*)malloc(MAX_WIKI_TEXT_SIZE);
        if(inbuf == NULL || outbuf == NULL) {
                MN_FATAL_ERROR(wxT("It's too big data. Max size is 5MB."));
        }

        codeSet = iconv_open(CODE_SET_EUC_JP, CODE_SET_SYSTEM);
        if(codeSet == (iconv_t)-1) {
                MN_FATAL_ERROR(wxT("failed iconv_open"));
        }

        sprintf(fullPath, "%s/%s", (const char*)dataDirName->mb_str(), (const char*)fileName->mb_str());
        fp = fopen(fullPath, "wb");
        if(fp == NULL) {
                MN_FATAL_ERROR(wxT("File open error."));
        }

        memset(inbuf, 0, MAX_WIKI_TEXT_SIZE);
        strcpy(inbuf,(const char*)text->mb_str());

//#ifdef __WXMAC__
//      for(int i = 0; inbuf[i] != 0; i++) if(inbuf[i] == (char)MAC_BACKSLASH) inbuf[i] = '\\';
//#endif

        inbufPtr = inbuf;
        inbufSize = strlen(inbufPtr);
        outbufPtr = outbuf;
        outbufSize = MAX_WIKI_TEXT_SIZE;
        memset(outbuf, 0, outbufSize);
        iconv(codeSet, (ICONV_CONST char**)&inbufPtr, (size_t*)&inbufSize, &outbufPtr, (size_t*)&outbufSize);
        if(inbufSize != 0) { // iconv error
                wxMessageBox(wxT("Fail to save, because this memo include KISHU-IZON-MOJI.\nPlease remove KISHU-IZON-MOJI, and try again"), wxT("Fail to save"), wxOK|wxICON_WARNING);
        }
        fwrite(outbuf, MAX_WIKI_TEXT_SIZE-outbufSize, 1, fp);
        fclose(fp);
        iconv_close(codeSet);
        
        free(inbuf);
        free(outbuf);
        
        isWriteToFile = true;
}

/******* Tools ************************/

static void toLower(char* string)
{
        int i;

        for(i = 0; string[i] != 0; i++) {
                string[i] = tolower(string[i]);
        }
}


static char* decode(const char* string)
{
        static char buf[MAX_BUF_SIZE];
        char c[5];
        int i,j;
        char* endPtr = NULL;

        j = 0;
        memset(buf, 0, MAX_BUF_SIZE);   
        for(i = 0; string[i] != 0; i+=2) {
                c[0] = '0'; c[1] = 'x';
                c[2] = string[i]; c[3] = string[i+1]; c[4] = 0;
                buf[j] = strtol(c, &endPtr, 0);
                j++;
                if(j >= MAX_BUF_SIZE) {
                        buf[MAX_BUF_SIZE] = 0;
                        break;
                }
        }

        return buf;
}

static char* encode(const char* string)
{
        static char buf[MAX_BUF_SIZE];
        int i,j;

        j = 0;
        memset(buf, 0, MAX_BUF_SIZE);
        for(i = 0; string[i] != 0; i++) {
                snprintf(&buf[j], 3, "%02X", (unsigned char)(string[i]));
                j+=2;
                if(j >= MAX_BUF_SIZE) {
                        buf[MAX_BUF_SIZE] = 0;
                        break;
                }
        }
        return buf;
}

/*
 *    wiki1 > wiki2   ->  return < 0
 *    wiki1 = wiki2   ->  return = 0
 *    wiki1 < wiki2   ->  return > 0
 */
static int compWikiData(const void* wiki1, const void* wiki2)
{
        WikiData* data1 = *(WikiData**)wiki1;
        WikiData* data2 = *(WikiData**)wiki2;
        const wxString* str1 = NULL;
        const wxString* str2 = NULL;

        str1 = data1->getDate();
        str2 = data2->getDate();

        if(str1 != NULL && str2 != NULL) {
                return (strcmp(str2->mb_str(), str1->mb_str()));
        }
        else{
                return 0;
        }
}
