SQLite

Check-in [0425138a23]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Clean up the code for processing FTS4 options a bit.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | fts3-prefix-search
Files: files | file ages | folders
SHA1: 0425138a2365d23b07d88fda2b1f458f112f389d
User & Date: dan 2011-06-06 06:55:38.365
Context
2011-06-06
14:51
Modify fts3rnd.test to run tests for both "ORDER BY docid ASC" and "ORDER BY docid DESC" with both order=ASC and order=DESC FTS tables. Fixes for some bugs found. (check-in: 89f2f482e0 user: dan tags: fts3-prefix-search)
06:55
Clean up the code for processing FTS4 options a bit. (check-in: 0425138a23 user: dan tags: fts3-prefix-search)
2011-06-04
20:13
Remove some unreachable code. (check-in: 650e1a79ed user: dan tags: fts3-prefix-search)
Changes
Unified Diff Ignore Whitespace Patch
Changes to ext/fts3/fts3.c.
905
906
907
908
909
910
911

912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
  const char **aCol;              /* Array of column names */
  sqlite3_tokenizer *pTokenizer = 0;        /* Tokenizer for this table */

  int nIndex;                     /* Size of aIndex[] array */
  struct Fts3Index *aIndex;       /* Array of indexes for this table */
  struct Fts3Index *aFree = 0;    /* Free this before returning */


  int bNoDocsize = 0;             /* True to omit %_docsize table */
  int bDescIdx = 0;               /* True to store descending indexes */

  char *zMatchinfo = 0;           /* Prefix parameter value (or NULL) */
  char *zPrefix = 0;              /* Prefix parameter value (or NULL) */
  char *zCompress = 0;            /* compress=? parameter (or NULL) */
  char *zUncompress = 0;          /* uncompress=? parameter (or NULL) */
  char *zOrder = 0;               /* order=? parameter (or NULL) */
  struct Fts4Option {
    const char *zOpt;
    int nOpt;
    char **pzVar;
  } aFts4Opt[] = {
    { "matchinfo",   9, 0 },
    { "prefix",      6, 0 },
    { "compress",    8, 0 },
    { "uncompress", 10, 0 },
    { "order",       5, 0 }
  };
  aFts4Opt[0].pzVar = &zMatchinfo;
  aFts4Opt[1].pzVar = &zPrefix;
  aFts4Opt[2].pzVar = &zCompress;
  aFts4Opt[3].pzVar = &zUncompress;
  aFts4Opt[4].pzVar = &zOrder;

  assert( strlen(argv[0])==4 );
  assert( (sqlite3_strnicmp(argv[0], "fts4", 4)==0 && isFts4)
       || (sqlite3_strnicmp(argv[0], "fts3", 4)==0 && !isFts4)
  );

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







>


<
<



<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<







905
906
907
908
909
910
911
912
913
914


915
916
917

















918
919
920
921
922
923
924
  const char **aCol;              /* Array of column names */
  sqlite3_tokenizer *pTokenizer = 0;        /* Tokenizer for this table */

  int nIndex;                     /* Size of aIndex[] array */
  struct Fts3Index *aIndex;       /* Array of indexes for this table */
  struct Fts3Index *aFree = 0;    /* Free this before returning */

  /* The results of parsing supported FTS4 key=value options: */
  int bNoDocsize = 0;             /* True to omit %_docsize table */
  int bDescIdx = 0;               /* True to store descending indexes */


  char *zPrefix = 0;              /* Prefix parameter value (or NULL) */
  char *zCompress = 0;            /* compress=? parameter (or NULL) */
  char *zUncompress = 0;          /* uncompress=? parameter (or NULL) */


















  assert( strlen(argv[0])==4 );
  assert( (sqlite3_strnicmp(argv[0], "fts4", 4)==0 && isFts4)
       || (sqlite3_strnicmp(argv[0], "fts3", 4)==0 && !isFts4)
  );

  nDb = (int)strlen(argv[1]) + 1;
969
970
971
972
973
974
975












976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993























994



995












996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
     && 0==sqlite3Fts3IsIdChar(z[8])
    ){
      rc = sqlite3Fts3InitTokenizer(pHash, &z[9], &pTokenizer, pzErr);
    }

    /* Check if it is an FTS4 special argument. */
    else if( isFts4 && fts3IsSpecialColumn(z, &nKey, &zVal) ){












      int iOpt;
      if( !zVal ){
        rc = SQLITE_NOMEM;
      }else{
        for(iOpt=0; iOpt<SizeofArray(aFts4Opt); iOpt++){
          if( nKey==aFts4Opt[iOpt].nOpt 
           && !sqlite3_strnicmp(z, aFts4Opt[iOpt].zOpt, aFts4Opt[iOpt].nOpt) 
          ){
            char **pzVar = aFts4Opt[iOpt].pzVar;
            sqlite3_free(*pzVar);
            *pzVar = zVal;
            zVal = 0;
            break;
          }
        }
        if( zVal ){
          *pzErr = sqlite3_mprintf("unrecognized parameter: %s", z);
          rc = SQLITE_ERROR;























          sqlite3_free(zVal);



        }












      }
    }

    /* Otherwise, the argument is a column name. */
    else {
      nString += (int)(strlen(z) + 1);
      aCol[nCol++] = z;
    }
  }
  if( rc!=SQLITE_OK ) goto fts3_init_out;

  if( nCol==0 ){
    assert( nString==0 );
    aCol[0] = "content";
    nString = 8;
    nCol = 1;
  }

  if( zMatchinfo ){
    if( strlen(zMatchinfo)!=4 || sqlite3_strnicmp(zMatchinfo, "fts3", 4) ){
      *pzErr = sqlite3_mprintf("unrecognized matchinfo: %s", zMatchinfo);
      rc = SQLITE_ERROR;
      goto fts3_init_out;
    }
    bNoDocsize = 1;
  }

  if( zOrder ){
    if( (strlen(zOrder)!=3 || sqlite3_strnicmp(zOrder, "asc", 3)) 
     && (strlen(zOrder)!=4 || sqlite3_strnicmp(zOrder, "desc", 3)) 
    ){
      *pzErr = sqlite3_mprintf("unrecognized order: %s", zOrder);
      rc = SQLITE_ERROR;
      goto fts3_init_out;
    }
    bDescIdx = (zOrder[0]=='d' || zOrder[0]=='D');
  }

  if( pTokenizer==0 ){
    rc = sqlite3Fts3InitTokenizer(pHash, "simple", &pTokenizer, pzErr);
    if( rc!=SQLITE_OK ) goto fts3_init_out;
  }
  assert( pTokenizer );

  rc = fts3PrefixParameter(zPrefix, &nIndex, &aIndex, &aFree);
  if( rc==SQLITE_ERROR ){
    assert( zPrefix );
    *pzErr = sqlite3_mprintf("error parsing prefix parameter: %s", zPrefix);
  }
  if( rc ) goto fts3_init_out;


  /* Allocate and populate the Fts3Table structure. */
  nByte = sizeof(Fts3Table) +                  /* Fts3Table */
          nCol * sizeof(char *) +              /* azColumn */
          nIndex * sizeof(struct Fts3Index) +  /* aIndex */
          nName +                              /* zName */
          nDb +                                /* zDb */







>
>
>
>
>
>
>
>
>
>
>
>





|
|
<
<
<
<
<



|


>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
|
>
>
>
|
>
>
>
>
>
>
>
>
>
>
>
>


















<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<











|
<







951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976





977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040




















1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052

1053
1054
1055
1056
1057
1058
1059
     && 0==sqlite3Fts3IsIdChar(z[8])
    ){
      rc = sqlite3Fts3InitTokenizer(pHash, &z[9], &pTokenizer, pzErr);
    }

    /* Check if it is an FTS4 special argument. */
    else if( isFts4 && fts3IsSpecialColumn(z, &nKey, &zVal) ){
      struct Fts4Option {
        const char *zOpt;
        int nOpt;
        char **pzVar;
      } aFts4Opt[] = {
        { "matchinfo",   9, 0 },            /* 0 -> MATCHINFO */
        { "prefix",      6, 0 },            /* 1 -> PREFIX */
        { "compress",    8, 0 },            /* 2 -> COMPRESS */
        { "uncompress", 10, 0 },            /* 3 -> UNCOMPRESS */
        { "order",       5, 0 }             /* 4 -> ORDER */
      };

      int iOpt;
      if( !zVal ){
        rc = SQLITE_NOMEM;
      }else{
        for(iOpt=0; iOpt<SizeofArray(aFts4Opt); iOpt++){
          struct Fts4Option *pOp = &aFts4Opt[iOpt];
          if( nKey==pOp->nOpt && !sqlite3_strnicmp(z, pOp->zOpt, pOp->nOpt) ){





            break;
          }
        }
        if( iOpt==SizeofArray(aFts4Opt) ){
          *pzErr = sqlite3_mprintf("unrecognized parameter: %s", z);
          rc = SQLITE_ERROR;
        }else{
          switch( iOpt ){
            case 0:               /* MATCHINFO */
              if( strlen(zVal)!=4 || sqlite3_strnicmp(zVal, "fts3", 4) ){
                *pzErr = sqlite3_mprintf("unrecognized matchinfo: %s", zVal);
                rc = SQLITE_ERROR;
              }
              bNoDocsize = 1;
              break;

            case 1:               /* PREFIX */
              sqlite3_free(zPrefix);
              zPrefix = zVal;
              zVal = 0;
              break;

            case 2:               /* COMPRESS */
              sqlite3_free(zCompress);
              zCompress = zVal;
              zVal = 0;
              break;

            case 3:               /* UNCOMPRESS */
              sqlite3_free(zUncompress);
              zUncompress = zVal;
              zVal = 0;
              break;

            case 4:               /* ORDER */
              if( (strlen(zVal)!=3 || sqlite3_strnicmp(zVal, "asc", 3)) 
               && (strlen(zVal)!=4 || sqlite3_strnicmp(zVal, "desc", 3)) 
              ){
                *pzErr = sqlite3_mprintf("unrecognized order: %s", zVal);
                rc = SQLITE_ERROR;
              }
              bDescIdx = (zVal[0]=='d' || zVal[0]=='D');
              break;
          }
        }
        sqlite3_free(zVal);
      }
    }

    /* Otherwise, the argument is a column name. */
    else {
      nString += (int)(strlen(z) + 1);
      aCol[nCol++] = z;
    }
  }
  if( rc!=SQLITE_OK ) goto fts3_init_out;

  if( nCol==0 ){
    assert( nString==0 );
    aCol[0] = "content";
    nString = 8;
    nCol = 1;
  }





















  if( pTokenizer==0 ){
    rc = sqlite3Fts3InitTokenizer(pHash, "simple", &pTokenizer, pzErr);
    if( rc!=SQLITE_OK ) goto fts3_init_out;
  }
  assert( pTokenizer );

  rc = fts3PrefixParameter(zPrefix, &nIndex, &aIndex, &aFree);
  if( rc==SQLITE_ERROR ){
    assert( zPrefix );
    *pzErr = sqlite3_mprintf("error parsing prefix parameter: %s", zPrefix);
  }
  if( rc!=SQLITE_OK ) goto fts3_init_out;


  /* Allocate and populate the Fts3Table structure. */
  nByte = sizeof(Fts3Table) +                  /* Fts3Table */
          nCol * sizeof(char *) +              /* azColumn */
          nIndex * sizeof(struct Fts3Index) +  /* aIndex */
          nName +                              /* zName */
          nDb +                                /* zDb */
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
  fts3DeclareVtab(&rc, p);

fts3_init_out:
  sqlite3_free(zPrefix);
  sqlite3_free(aFree);
  sqlite3_free(zCompress);
  sqlite3_free(zUncompress);
  sqlite3_free(zOrder);
  sqlite3_free(zMatchinfo);
  sqlite3_free((void *)aCol);
  if( rc!=SQLITE_OK ){
    if( p ){
      fts3DisconnectMethod((sqlite3_vtab *)p);
    }else if( pTokenizer ){
      pTokenizer->pModule->xDestroy(pTokenizer);
    }







<
<







1132
1133
1134
1135
1136
1137
1138


1139
1140
1141
1142
1143
1144
1145
  fts3DeclareVtab(&rc, p);

fts3_init_out:
  sqlite3_free(zPrefix);
  sqlite3_free(aFree);
  sqlite3_free(zCompress);
  sqlite3_free(zUncompress);


  sqlite3_free((void *)aCol);
  if( rc!=SQLITE_OK ){
    if( p ){
      fts3DisconnectMethod((sqlite3_vtab *)p);
    }else if( pTokenizer ){
      pTokenizer->pModule->xDestroy(pTokenizer);
    }
4183
4184
4185
4186
4187
4188
4189
4190



4191
4192
4193
4194
4195
4196
4197
  }

  return ((iCol==iThis)?pIter:0);
}

/*
** Free all components of the Fts3Phrase structure that were allocated by
** the eval module.



*/
void sqlite3Fts3EvalPhraseCleanup(Fts3Phrase *pPhrase){
  if( pPhrase ){
    int i;
    sqlite3_free(pPhrase->doclist.aAll);
    fts3EvalFreeDeferredDoclist(pPhrase);
    memset(&pPhrase->doclist, 0, sizeof(Fts3Doclist));







|
>
>
>







4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
  }

  return ((iCol==iThis)?pIter:0);
}

/*
** Free all components of the Fts3Phrase structure that were allocated by
** the eval module. Specifically, this means to free:
**
**   * the contents of pPhrase->doclist, and
**   * any Fts3MultiSegReader objects held by phrase tokens.
*/
void sqlite3Fts3EvalPhraseCleanup(Fts3Phrase *pPhrase){
  if( pPhrase ){
    int i;
    sqlite3_free(pPhrase->doclist.aAll);
    fts3EvalFreeDeferredDoclist(pPhrase);
    memset(&pPhrase->doclist, 0, sizeof(Fts3Doclist));
Changes to test/fts3sort.test.
132
133
134
135
136
137
138
139

140
141
142
143
144
145
146
#-------------------------------------------------------------------------
# Tests for parsing the "order=asc" and "order=desc" directives.
#
foreach {tn param res} {
  1 "order=asc"             {0 {}}
  2 "order=desc"            {0 {}}
  3 "order=dec"             {1 {unrecognized order: dec}}
  4 "order=xxx, order=asc"  {0 {}}

} {
  execsql { DROP TABLE IF EXISTS t1 }
  do_catchsql_test 2.1.$tn "
    CREATE VIRTUAL TABLE t1 USING fts4(a, b, $param)
  " $res
}








|
>







132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
#-------------------------------------------------------------------------
# Tests for parsing the "order=asc" and "order=desc" directives.
#
foreach {tn param res} {
  1 "order=asc"             {0 {}}
  2 "order=desc"            {0 {}}
  3 "order=dec"             {1 {unrecognized order: dec}}
  4 "order=xxx, order=asc"  {1 {unrecognized order: xxx}}
  5 "order=desc, order=asc" {0 {}}
} {
  execsql { DROP TABLE IF EXISTS t1 }
  do_catchsql_test 2.1.$tn "
    CREATE VIRTUAL TABLE t1 USING fts4(a, b, $param)
  " $res
}