SQLite

  const char *zCsr = z;

  while( *zCsr!='=' ){
    if( *zCsr=='\0' ) return 0;
    zCsr++;
  }

  *pnKey = (int)(zCsr-z);
  zValue = sqlite3_mprintf("%s", &zCsr[1]);
  if( zValue ){
    sqlite3Fts3Dequote(zValue);
  }
  *pzValue = zValue;
  return 1;
}

  );

  nDb = (int)strlen(argv[1]) + 1;
  nName = (int)strlen(argv[2]) + 1;

  aCol = (const char **)sqlite3_malloc(sizeof(const char *) * (argc-2) );
  if( !aCol ) return SQLITE_NOMEM;
  memset((void *)aCol, 0, sizeof(const char *) * (argc-2));

  /* Loop through all of the arguments passed by the user to the FTS3/4
  ** module (i.e. all the column names and special arguments). This loop
  ** does the following:
  **
  **   + Figures out the number of columns the FTSX table will have, and
  **     the number of bytes of space that must be allocated to store copies

  fts3DatabasePageSize(&rc, p);

  /* Declare the table schema to SQLite. */
  fts3DeclareVtab(&rc, p);

fts3_init_out:

  sqlite3_free((void *)aCol);
  if( rc!=SQLITE_OK ){
    if( p ){
      fts3DisconnectMethod((sqlite3_vtab *)p);
    }else if( pTokenizer ){
      pTokenizer->pModule->xDestroy(pTokenizer);
    }
  }else{

    while( p<aEnd ){
      sqlite3_int64 delta;
      p += sqlite3Fts3GetVarint(p, &delta);
      fts3PoslistCopy(0, &p);
      pOut += sqlite3Fts3PutVarint(pOut, delta);
    }

    *pnList = (int)(pOut - aList);
  }
}

/* 
** Return a DocList corresponding to the phrase *pPhrase.
**
** If this function returns SQLITE_OK, but *pnOut is set to a negative value,

  pRead += sqlite3Fts3GetVarint(pRead, &iRead);
  if( iRead==0 ){
    pIter->iCol = LCS_ITERATOR_FINISHED;
    rc = 1;
  }else{
    if( iRead==1 ){
      pRead += sqlite3Fts3GetVarint(pRead, &iRead);
      pIter->iCol = (int)iRead;
      pIter->iPos = pIter->iPosOffset;
      pRead += sqlite3Fts3GetVarint(pRead, &iRead);
      rc = 1;
    }
    pIter->iPos += (int)(iRead-2);
  }

  pIter->pRead = pRead;
  return rc;
}
  
/*

          rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &nDoc, &a);
          if( rc==SQLITE_OK ){
            int iCol;
            for(iCol=0; iCol<pInfo->nCol; iCol++){
              sqlite3_int64 nToken;
              a += sqlite3Fts3GetVarint(a, &nToken);
              pInfo->aMatchinfo[iCol] = (u32)(((u32)(nToken&0xffffffff)+nDoc/2)/nDoc);
            }
          }
        }
        break;

      case FTS3_MATCHINFO_LENGTH: {
        sqlite3_stmt *pSelectDocsize = 0;

    /* Determine the number of integers in the buffer returned by this call. */
    for(i=0; zArg[i]; i++){
      nMatchinfo += fts3MatchinfoSize(&sInfo, zArg[i]);
    }

    /* Allocate space for Fts3Cursor.aMatchinfo[] and Fts3Cursor.zMatchinfo. */
    nArg = (int)strlen(zArg);
    pCsr->aMatchinfo = (u32 *)sqlite3_malloc(sizeof(u32)*nMatchinfo + nArg + 1);
    if( !pCsr->aMatchinfo ) return SQLITE_NOMEM;

    pCsr->zMatchinfo = (char *)&pCsr->aMatchinfo[nMatchinfo];
    pCsr->nMatchinfo = nMatchinfo;
    memcpy(pCsr->zMatchinfo, zArg, nArg+1);
    memset(pCsr->aMatchinfo, 0, sizeof(u32)*nMatchinfo);

          const char *pEnd = &a[sqlite3_column_bytes(pStmt, 0)];
          a += sqlite3Fts3GetVarint(a, &nDoc);
          while( a<pEnd ){
            a += sqlite3Fts3GetVarint(a, &nByte);
          }
        }

        pCsr->nRowAvg = (int)(((nByte / nDoc) + pgsz - 1) / pgsz);
      }
      rc = sqlite3_reset(pStmt);
      if( rc!=SQLITE_OK || pCsr->nRowAvg==0 ) return rc;
    }

    /* Assume that a blob flows over onto overflow pages if it is larger
    ** than (pgsz-35) bytes in size (the file-format documentation