Fossil

        ){
          aiWordIdx[j] = iWord;
          aiLastDoc[j] = iDoc;
          aiLastOfst[j] = i;
          for(k=1; j-k>=0 && anMatch[j-k] && aiWordIdx[j-k]==iWord-k; k++){}
          for(ii=0; ii<k; ii++){
            if( anMatch[j-ii]<k ){
              anMatch[j-ii] = k*(nDoc-iDoc);
              aiBestDoc[j-ii] = aiLastDoc[j-ii];
              aiBestOfst[j-ii] = aiLastOfst[j-ii];
            }
          }
          break;
        }
      }

** Return non-zero on a match and zero on a miss.
*/
static void search_match_sqlfunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *azDoc[5];
  int nDoc;
  int rc;
  for(nDoc=0; nDoc<ArraySize(azDoc) && nDoc<argc; nDoc++){
    azDoc[nDoc] = (const char*)sqlite3_value_text(argv[nDoc]);
    if( azDoc[nDoc]==0 ) azDoc[nDoc] = "";
  }
  rc = search_match(&gSearch, nDoc, azDoc);
  sqlite3_result_int(context, rc);
}

/*
** These SQL functions return the results of the last
** call to the search_match() SQL function.
*/

** search_stext() routine for further detail.
*/
static void search_stext_sqlfunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zType = (const char*)sqlite3_value_text(argv[0]);
  int rid = sqlite3_value_int(argv[1]);
  const char *zName = (const char*)sqlite3_value_text(argv[2]);
  sqlite3_result_text(context, search_stext_cached(zType[0],rid,zName,0), -1,
                      SQLITE_TRANSIENT);
}
static void search_title_sqlfunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zType = (const char*)sqlite3_value_text(argv[0]);
  int rid = sqlite3_value_int(argv[1]);
  const char *zName = (const char*)sqlite3_value_text(argv[2]);
  int nHdr;
  char *z = search_stext_cached(zType[0], rid, zName, &nHdr);
  if( nHdr || zType[0]!='d' ){
    sqlite3_result_text(context, z, nHdr, SQLITE_TRANSIENT);
  }else{
    sqlite3_result_value(context, argv[2]);
  }
}
static void search_body_sqlfunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zType = (const char*)sqlite3_value_text(argv[0]);
  int rid = sqlite3_value_int(argv[1]);
  const char *zName = (const char*)sqlite3_value_text(argv[2]);
  int nHdr;
  char *z = search_stext_cached(zType[0], rid, zName, &nHdr);
  sqlite3_result_text(context, z+nHdr+1, -1, SQLITE_TRANSIENT);
}

/*
** Encode a string for use as a query parameter in a URL
*/
static void search_urlencode_sqlfunc(
  sqlite3_context *context,

** Register the "score()" SQL function to score its input text
** using the given Search object.  Once this function is registered,
** do not delete the Search object.
*/
void search_sql_setup(sqlite3 *db){
  static int once = 0;
  if( once++ ) return;
  sqlite3_create_function(db, "search_match", -1, SQLITE_UTF8, 0,
     search_match_sqlfunc, 0, 0);
  sqlite3_create_function(db, "search_score", 0, SQLITE_UTF8, 0,
     search_score_sqlfunc, 0, 0);
  sqlite3_create_function(db, "search_snippet", 0, SQLITE_UTF8, 0,
     search_snippet_sqlfunc, 0, 0);
  sqlite3_create_function(db, "search_init", -1, SQLITE_UTF8, 0,
     search_init_sqlfunc, 0, 0);
  sqlite3_create_function(db, "stext", 3, SQLITE_UTF8, 0,
     search_stext_sqlfunc, 0, 0);
  sqlite3_create_function(db, "title", 3, SQLITE_UTF8, 0,
     search_title_sqlfunc, 0, 0);
  sqlite3_create_function(db, "body", 3, SQLITE_UTF8, 0,
     search_body_sqlfunc, 0, 0);
  sqlite3_create_function(db, "urlencode", 1, SQLITE_UTF8, 0,
     search_urlencode_sqlfunc, 0, 0);
}

/*
** Testing the search function.
**

    char *zDocBr = db_get("doc-branch","trunk");
    if( zDocGlob && zDocGlob[0] && zDocBr && zDocBr[0] ){
      db_multi_exec(
        "CREATE VIRTUAL TABLE IF NOT EXISTS temp.foci USING files_of_checkin;"
      );
      db_multi_exec(
        "INSERT INTO x(label,url,score,date,snip)"
        "  SELECT printf('Document: %%s',title('d',blob.rid,foci.filename)),"
        "         printf('/doc/%T/%%s',foci.filename),"
        "         search_score(),"
        "         (SELECT datetime(event.mtime) FROM event"
        "            WHERE objid=symbolic_name_to_rid('trunk')),"
        "         search_snippet()"
        "    FROM foci CROSS JOIN blob"
        "   WHERE checkinID=symbolic_name_to_rid('trunk')"
        "     AND blob.uuid=foci.uuid"
        "     AND search_match(title('d',blob.rid,foci.filename),"
        "                      body('d',blob.rid,foci.filename))"
        "     AND %z",
        zDocBr, glob_expr("foci.filename", zDocGlob)
      );
    }
  }
  if( (srchFlags & SRCH_WIKI)!=0 ){
    db_multi_exec(

      "INSERT INTO x(label,url,score,date,snip)"
      "  SELECT printf('Wiki: %%s',name),"
      "         printf('/wiki?name=%%s',urlencode(name)),"
      "         search_score(),"
      "         datetime(mtime),"
      "         search_snippet()"
      "    FROM wiki"
      "   WHERE search_match(title('w',rid,name),body('w',rid,name));"
    );
  }
  if( (srchFlags & SRCH_CKIN)!=0 ){
    db_multi_exec(
      "WITH ckin(uuid,rid,mtime) AS ("
      "  SELECT blob.uuid, event.objid, event.mtime"
      "    FROM event, blob"
      "   WHERE event.type='ci'"
      "     AND blob.rid=event.objid"
      ")"
      "INSERT INTO x(label,url,score,date,snip)"
      "  SELECT printf('Check-in [%%.10s] on %%s',uuid,datetime(mtime)),"
      "         printf('/timeline?c=%%s&n=8&y=ci',uuid),"
      "         search_score(),"
      "         datetime(mtime),"
      "         search_snippet()"
      "    FROM ckin"
      "   WHERE search_match('',body('c',rid,NULL));"
    );
  }
  if( (srchFlags & SRCH_TKT)!=0 ){
    db_multi_exec(
      "INSERT INTO x(label,url,score, date,snip)"
      "  SELECT printf('Ticket: %%s (%%s)',title('t',tkt_id,NULL),"
                      "datetime(tkt_mtime)),"
      "         printf('/tktview/%%.20s',tkt_uuid),"
      "         search_score(),"
      "         datetime(tkt_mtime),"
      "         search_snippet()"
      "    FROM ticket"
      "   WHERE search_match(title('t',tkt_id,NULL),body('t',tkt_id,NULL));"
    );
  }
}

/*
** Implemenation of the rank() function used with rank(matchinfo(*,'pcsx')).
*/

    html_to_plaintext(blob_str(&html), pOut);
  }else if( fossil_strcmp(zMimetype,"text/html")==0 ){
    if( doc_is_embedded_html(pIn, &title) ){
      blob_appendf(pOut, "%s\n", blob_str(&title));
    }
    html_to_plaintext(blob_str(pIn), pOut);
  }else{

    blob_append(pOut, blob_buffer(pIn), blob_size(pIn));
  }
  blob_reset(&html);
  blob_reset(&title);
}

/*
** Query pQuery is pointing at a single row of output.  Append a text
** representation of every text-compatible column to pAccum.
*/
static void append_all_ticket_fields(Blob *pAccum, Stmt *pQuery, int iTitle){
  int n = db_column_count(pQuery);
  int i;
  const char *zMime = 0;
  if( iTitle>=0 && iTitle<n ){
    if( db_column_type(pQuery,iTitle)==SQLITE_TEXT ){
      blob_append(pAccum, db_column_text(pQuery,iTitle), -1);
    }
    blob_append(pAccum, "\n", 1);
  }
  for(i=0; i<n; i++){
    const char *zColName = db_column_name(pQuery,i);

        }
        db_reset(&q2);
      }
      break;
    }
  }
}

/*
** This routine is a wrapper around search_stext().  
**
** This routine looks up the search text, stores it in an internal
** buffer, and returns a pointer to the text.  Subsequent requests
** for the same document return the same pointer.  The returned pointer
** is valid until the next invocation of this routine.  Call this routine
** with an eType of 0 to clear the cache.
*/
char *search_stext_cached(
  char cType,            /* Type of document */
  int rid,               /* BLOB.RID or TAG.TAGID value for document */
  const char *zName,     /* Auxiliary information */
  int *pnTitle           /* OUT: length of title in bytes excluding \n */
){
  static struct {
    Blob stext;          /* Cached search text */
    char cType;          /* The type */
    int rid;             /* The RID */
    int nTitle;          /* Number of bytes in title */
  } cache;
  int i;
  char *z;
  if( cType!=cache.cType || rid!=cache.rid ){
    if( cache.rid>0 ){
      blob_reset(&cache.stext);
    }else{
      blob_init(&cache.stext,0,0);
    }
    cache.cType = cType;
    cache.rid = rid;
    if( cType==0 ) return 0;
    search_stext(cType, rid, zName, &cache.stext);
    z  = blob_str(&cache.stext);
    for(i=0; z[i] && z[i]!='\n'; i++){}
    cache.nTitle = i;
  }
  if( pnTitle ) *pnTitle = cache.nTitle;
  return blob_str(&cache.stext);
}

/*
** COMMAND: test-search-stext
**
** Usage: fossil test-search-stext TYPE ARG1 ARG2
*/
void test_search_stext(void){