Function FLTGetIsLikeComparisonExpression

mapogcfilter.c:2825–2927

/ FLTGetIsLikeComparisonExpression */ / Build expression for IsLike filter. */ /

/*      Build expression for IsLike filter.                             */
/************************************************************************/
char *FLTGetIsLikeComparisonExpression(FilterEncodingNode *psFilterNode)
{
    const size_t bufferSize = 1024;
    char szBuffer[1024];
    char szTmp[256];
    char *pszValue = NULL;
    
    char *pszWild = NULL;
    char *pszSingle = NULL;
    char *pszEscape = NULL;
    int  bCaseInsensitive = 0;

    int nLength=0, i=0, iTmp=0;


    if (!psFilterNode || !psFilterNode->pOther || !psFilterNode->psLeftNode ||
        !psFilterNode->psRightNode || !psFilterNode->psRightNode->pszValue)
      return NULL;

    pszWild = ((FEPropertyIsLike *)psFilterNode->pOther)->pszWildCard;
    pszSingle = ((FEPropertyIsLike *)psFilterNode->pOther)->pszSingleChar;
    pszEscape = ((FEPropertyIsLike *)psFilterNode->pOther)->pszEscapeChar;
    bCaseInsensitive = ((FEPropertyIsLike *)psFilterNode->pOther)->bCaseInsensitive;

    if (!pszWild || strlen(pszWild) == 0 ||
        !pszSingle || strlen(pszSingle) == 0 || 
        !pszEscape || strlen(pszEscape) == 0)
      return NULL;

 
/* -------------------------------------------------------------------- */
/*      Use operand with regular expressions.                           */
/* -------------------------------------------------------------------- */
    szBuffer[0] = '\0';
    sprintf(szTmp, "%s", " (\"[");
    szTmp[4] = '\0';

    strlcat(szBuffer, szTmp, bufferSize);

    /* attribute */
    strlcat(szBuffer, psFilterNode->psLeftNode->pszValue, bufferSize);
    szBuffer[strlen(szBuffer)] = '\0';

    /*#3521 */
    if(bCaseInsensitive == 1)
      sprintf(szTmp, "%s", "]\" ~* /");
    else
      sprintf(szTmp, "%s", "]\" =~ /");
    szTmp[7] = '\0';
    strlcat(szBuffer, szTmp, bufferSize);
    szBuffer[strlen(szBuffer)] = '\0';


    pszValue = psFilterNode->psRightNode->pszValue;
    nLength = strlen(pszValue);
    
    iTmp =0;
    if (nLength > 0 && pszValue[0] != pszWild[0] &&