m_col_cpsearch

This call searches a specified block of CP850 data for a match to a specified string. The search may be conducted either forward or backward from the specified starting point.


Syntax:         int m_col_cpsearch(sptr, slen, dptr, dlen, dir)
Parameters:     char far *sptr - Pointer to the beginning of the string to be matched
                int slen - Length of the string to match
                char far *dptr - Pointer to the beginning or end of the data 
                                 block to search
                int dlen - Length of the data block to search
                int dir  - -1 = Search in a forward direction
                           +1 = Search backwards through data block 
                           (NOTE: Searching backwards does not work reliably.  
                            CALL AT YOUR OWN RISK.)
Returns:        0 - no match found
                Offset to the start of the matched string in the data - if found
Comments:       This function returns 0 if the string is not found, however 0 is also
                a valid offset in the data.  To obtain a useful return, always make 
                this call with the pointer directed to the byte before the data block 
                to be searched.