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Overview
| Comment: | Clean up the code for processing FTS4 options a bit. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | fts3-prefix-search |
| Files: | files | file ages | folders |
| SHA1: |
0425138a2365d23b07d88fda2b1f458f |
| User & Date: | dan 2011-06-06 06:55:38 |
Context
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2011-06-06
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| 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: 89f2f482 user: dan tags: fts3-prefix-search | |
| 06:55 | Clean up the code for processing FTS4 options a bit. check-in: 0425138a user: dan tags: fts3-prefix-search | |
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2011-06-04
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| 20:13 | Remove some unreachable code. check-in: 650e1a79 user: dan tags: fts3-prefix-search | |
Changes
Changes to ext/fts3/fts3.c.
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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; ................................................................................ && 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( 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 */ ................................................................................ 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); } ................................................................................ } 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)); |
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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; ................................................................................ && 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( 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 */ ................................................................................ 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); } ................................................................................ } 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.
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#-------------------------------------------------------------------------
# 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)
" $res
}
|
| > |
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#-------------------------------------------------------------------------
# Tests for parsing the "order=asc" and "order=desc" directives.
#
foreach {tn param res} {
1 "order=asc" {0 {}}
2 "order=desc" {0 {}}
3 "order=dec" {1 {unrecognized order: dec}}
4 "order=xxx, order=asc" {1 {unrecognized order: xxx}}
5 "order=desc, order=asc" {0 {}}
} {
execsql { DROP TABLE IF EXISTS t1 }
do_catchsql_test 2.1.$tn "
CREATE VIRTUAL TABLE t1 USING fts4(a, b, $param)
" $res
}
|