Fossil

      /* Loop through all columns of the table being considered for snippets.
      ** If the iCol argument to this function was negative, this means all
      ** columns of the FTS3 table. Otherwise, only column iCol is considered.
      */
      for(iRead=0; iRead<pTab->nColumn; iRead++){
        SnippetFragment sF = {0, 0, 0, 0};
        int iS;
        int iS = 0;
        if( iCol>=0 && iRead!=iCol ) continue;

        /* Find the best snippet of nFToken tokens in column iRead. */
        rc = fts3BestSnippet(nFToken, pCsr, iRead, mCovered, &mSeen, &sF, &iS);
        if( rc!=SQLITE_OK ){
          goto snippet_out;
        }