[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_term.c

Index: third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_term.c
diff --git a/third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_term.c b/third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_term.c
deleted file mode 100644
index c49d5cb65d7f86ab82dc822a67da4df78c2673d1..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_term.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
-** 2011 Jan 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file is not part of the production FTS code. It is only used for
-** testing. It contains a virtual table implementation that provides direct 
-** access to the full-text index of an FTS table. 
-*/
-
-#include "fts3Int.h"
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-#ifdef SQLITE_TEST
-
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
-
-typedef struct Fts3termTable Fts3termTable;
-typedef struct Fts3termCursor Fts3termCursor;
-
-struct Fts3termTable {
-  sqlite3_vtab base;              /* Base class used by SQLite core */
-  int iIndex;                     /* Index for Fts3Table.aIndex[] */
-  Fts3Table *pFts3Tab;
-};
-
-struct Fts3termCursor {
-  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
-  Fts3MultiSegReader csr;        /* Must be right after "base" */
-  Fts3SegFilter filter;
-
-  int isEof;                      /* True if cursor is at EOF */
-  char *pNext;
-
-  sqlite3_int64 iRowid;           /* Current 'rowid' value */
-  sqlite3_int64 iDocid;           /* Current 'docid' value */
-  int iCol;                       /* Current 'col' value */
-  int iPos;                       /* Current 'pos' value */
-};
-
-/*
-** Schema of the terms table.
-*/
-#define FTS3_TERMS_SCHEMA "CREATE TABLE x(term, docid, col, pos)"
-
-/*
-** This function does all the work for both the xConnect and xCreate methods.
-** These tables have no persistent representation of their own, so xConnect
-** and xCreate are identical operations.
-*/
-static int fts3termConnectMethod(
-  sqlite3 *db,                    /* Database connection */
-  void *pCtx,                     /* Non-zero for an fts4prefix table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
-  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
-){
-  char const *zDb;                /* Name of database (e.g. "main") */
-  char const *zFts3;              /* Name of fts3 table */
-  int nDb;                        /* Result of strlen(zDb) */
-  int nFts3;                      /* Result of strlen(zFts3) */
-  int nByte;                      /* Bytes of space to allocate here */
-  int rc;                         /* value returned by declare_vtab() */
-  Fts3termTable *p;                /* Virtual table object to return */
-  int iIndex = 0;
-
-  UNUSED_PARAMETER(pCtx);
-  if( argc==5 ){
-    iIndex = atoi(argv[4]);
-    argc--;
-  }
-
-  /* The user should specify a single argument - the name of an fts3 table. */
-  if( argc!=4 ){
-    *pzErr = sqlite3_mprintf(
-        "wrong number of arguments to fts4term constructor"
-    );
-    return SQLITE_ERROR;
-  }
-
-  zDb = argv[1]; 
-  nDb = (int)strlen(zDb);
-  zFts3 = argv[3];
-  nFts3 = (int)strlen(zFts3);
-
-  rc = sqlite3_declare_vtab(db, FTS3_TERMS_SCHEMA);
-  if( rc!=SQLITE_OK ) return rc;
-
-  nByte = sizeof(Fts3termTable) + sizeof(Fts3Table) + nDb + nFts3 + 2;
-  p = (Fts3termTable *)sqlite3_malloc(nByte);
-  if( !p ) return SQLITE_NOMEM;
-  memset(p, 0, nByte);
-
-  p->pFts3Tab = (Fts3Table *)&p[1];
-  p->pFts3Tab->zDb = (char *)&p->pFts3Tab[1];
-  p->pFts3Tab->zName = &p->pFts3Tab->zDb[nDb+1];
-  p->pFts3Tab->db = db;
-  p->pFts3Tab->nIndex = iIndex+1;
-  p->iIndex = iIndex;
-
-  memcpy((char *)p->pFts3Tab->zDb, zDb, nDb);
-  memcpy((char *)p->pFts3Tab->zName, zFts3, nFts3);
-  sqlite3Fts3Dequote((char *)p->pFts3Tab->zName);
-
-  *ppVtab = (sqlite3_vtab *)p;
-  return SQLITE_OK;
-}
-
-/*
-** This function does the work for both the xDisconnect and xDestroy methods.
-** These tables have no persistent representation of their own, so xDisconnect
-** and xDestroy are identical operations.
-*/
-static int fts3termDisconnectMethod(sqlite3_vtab *pVtab){
-  Fts3termTable *p = (Fts3termTable *)pVtab;
-  Fts3Table *pFts3 = p->pFts3Tab;
-  int i;
-
-  /* Free any prepared statements held */
-  for(i=0; i<SizeofArray(pFts3->aStmt); i++){
-    sqlite3_finalize(pFts3->aStmt[i]);
-  }
-  sqlite3_free(pFts3->zSegmentsTbl);
-  sqlite3_free(p);
-  return SQLITE_OK;
-}
-
-#define FTS4AUX_EQ_CONSTRAINT 1
-#define FTS4AUX_GE_CONSTRAINT 2
-#define FTS4AUX_LE_CONSTRAINT 4
-
-/*
-** xBestIndex - Analyze a WHERE and ORDER BY clause.
-*/
-static int fts3termBestIndexMethod(
-  sqlite3_vtab *pVTab, 
-  sqlite3_index_info *pInfo
-){
-  UNUSED_PARAMETER(pVTab);
-
-  /* This vtab naturally does "ORDER BY term, docid, col, pos".  */
-  if( pInfo->nOrderBy ){
-    int i;
-    for(i=0; i<pInfo->nOrderBy; i++){
-      if( pInfo->aOrderBy[i].iColumn!=i || pInfo->aOrderBy[i].desc ) break;
-    }
-    if( i==pInfo->nOrderBy ){
-      pInfo->orderByConsumed = 1;
-    }
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** xOpen - Open a cursor.
-*/
-static int fts3termOpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
-  Fts3termCursor *pCsr;            /* Pointer to cursor object to return */
-
-  UNUSED_PARAMETER(pVTab);
-
-  pCsr = (Fts3termCursor *)sqlite3_malloc(sizeof(Fts3termCursor));
-  if( !pCsr ) return SQLITE_NOMEM;
-  memset(pCsr, 0, sizeof(Fts3termCursor));
-
-  *ppCsr = (sqlite3_vtab_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-/*
-** xClose - Close a cursor.
-*/
-static int fts3termCloseMethod(sqlite3_vtab_cursor *pCursor){
-  Fts3Table *pFts3 = ((Fts3termTable *)pCursor->pVtab)->pFts3Tab;
-  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
-
-  sqlite3Fts3SegmentsClose(pFts3);
-  sqlite3Fts3SegReaderFinish(&pCsr->csr);
-  sqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** xNext - Advance the cursor to the next row, if any.
-*/
-static int fts3termNextMethod(sqlite3_vtab_cursor *pCursor){
-  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
-  Fts3Table *pFts3 = ((Fts3termTable *)pCursor->pVtab)->pFts3Tab;
-  int rc;
-  sqlite3_int64 v;
-
-  /* Increment our pretend rowid value. */
-  pCsr->iRowid++;
-
-  /* Advance to the next term in the full-text index. */
-  if( pCsr->csr.aDoclist==0 
-   || pCsr->pNext>=&pCsr->csr.aDoclist[pCsr->csr.nDoclist-1]
-  ){
-    rc = sqlite3Fts3SegReaderStep(pFts3, &pCsr->csr);
-    if( rc!=SQLITE_ROW ){
-      pCsr->isEof = 1;
-      return rc;
-    }
-
-    pCsr->iCol = 0;
-    pCsr->iPos = 0;
-    pCsr->iDocid = 0;
-    pCsr->pNext = pCsr->csr.aDoclist;
-
-    /* Read docid */
-    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &pCsr->iDocid);
-  }
-
-  pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
-  if( v==0 ){
-    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
-    pCsr->iDocid += v;
-    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
-    pCsr->iCol = 0;
-    pCsr->iPos = 0;
-  }
-
-  if( v==1 ){
-    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
-    pCsr->iCol += (int)v;
-    pCsr->iPos = 0;
-    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
-  }
-
-  pCsr->iPos += (int)(v - 2);
-
-  return SQLITE_OK;
-}
-
-/*
-** xFilter - Initialize a cursor to point at the start of its data.
-*/
-static int fts3termFilterMethod(
-  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *idxStr,             /* Unused */
-  int nVal,                       /* Number of elements in apVal */
-  sqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
-  Fts3termTable *p = (Fts3termTable *)pCursor->pVtab;
-  Fts3Table *pFts3 = p->pFts3Tab;
-  int rc;
-
-  UNUSED_PARAMETER(nVal);
-  UNUSED_PARAMETER(idxNum);
-  UNUSED_PARAMETER(idxStr);
-  UNUSED_PARAMETER(apVal);
-
-  assert( idxStr==0 && idxNum==0 );
-
-  /* In case this cursor is being reused, close and zero it. */
-  testcase(pCsr->filter.zTerm);
-  sqlite3Fts3SegReaderFinish(&pCsr->csr);
-  memset(&pCsr->csr, 0, ((u8*)&pCsr[1]) - (u8*)&pCsr->csr);
-
-  pCsr->filter.flags = FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
-  pCsr->filter.flags |= FTS3_SEGMENT_SCAN;
-
-  rc = sqlite3Fts3SegReaderCursor(pFts3, 0, p->iIndex, FTS3_SEGCURSOR_ALL,
-      pCsr->filter.zTerm, pCsr->filter.nTerm, 0, 1, &pCsr->csr
-  );
-  if( rc==SQLITE_OK ){
-    rc = sqlite3Fts3SegReaderStart(pFts3, &pCsr->csr, &pCsr->filter);
-  }
-  if( rc==SQLITE_OK ){
-    rc = fts3termNextMethod(pCursor);
-  }
-  return rc;
-}
-
-/*
-** xEof - Return true if the cursor is at EOF, or false otherwise.
-*/
-static int fts3termEofMethod(sqlite3_vtab_cursor *pCursor){
-  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
-  return pCsr->isEof;
-}
-
-/*
-** xColumn - Return a column value.
-*/
-static int fts3termColumnMethod(
-  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  Fts3termCursor *p = (Fts3termCursor *)pCursor;
-
-  assert( iCol>=0 && iCol<=3 );
-  switch( iCol ){
-    case 0:
-      sqlite3_result_text(pCtx, p->csr.zTerm, p->csr.nTerm, SQLITE_TRANSIENT);
-      break;
-    case 1:
-      sqlite3_result_int64(pCtx, p->iDocid);
-      break;
-    case 2:
-      sqlite3_result_int64(pCtx, p->iCol);
-      break;
-    default:
-      sqlite3_result_int64(pCtx, p->iPos);
-      break;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** xRowid - Return the current rowid for the cursor.
-*/
-static int fts3termRowidMethod(
-  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  sqlite_int64 *pRowid            /* OUT: Rowid value */
-){
-  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
-  *pRowid = pCsr->iRowid;
-  return SQLITE_OK;
-}
-
-/*
-** Register the fts3term module with database connection db. Return SQLITE_OK
-** if successful or an error code if sqlite3_create_module() fails.
-*/
-int sqlite3Fts3InitTerm(sqlite3 *db){
-  static const sqlite3_module fts3term_module = {
-     0,                           /* iVersion      */
-     fts3termConnectMethod,       /* xCreate       */
-     fts3termConnectMethod,       /* xConnect      */
-     fts3termBestIndexMethod,     /* xBestIndex    */
-     fts3termDisconnectMethod,    /* xDisconnect   */
-     fts3termDisconnectMethod,    /* xDestroy      */
-     fts3termOpenMethod,          /* xOpen         */
-     fts3termCloseMethod,         /* xClose        */
-     fts3termFilterMethod,        /* xFilter       */
-     fts3termNextMethod,          /* xNext         */
-     fts3termEofMethod,           /* xEof          */
-     fts3termColumnMethod,        /* xColumn       */
-     fts3termRowidMethod,         /* xRowid        */
-     0,                           /* xUpdate       */
-     0,                           /* xBegin        */
-     0,                           /* xSync         */
-     0,                           /* xCommit       */
-     0,                           /* xRollback     */
-     0,                           /* xFindFunction */
-     0,                           /* xRename       */
-     0,                           /* xSavepoint    */
-     0,                           /* xRelease      */
-     0                            /* xRollbackTo   */
-  };
-  int rc;                         /* Return code */
-
-  rc = sqlite3_create_module(db, "fts4term", &fts3term_module, 0);
-  return rc;
-}
-
-#endif
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */