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Fix memory leaks in the amatch extension. Add a few simple test cases.

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FossilOrigin-Name: 604134732e309a738e21bcb4240b9ff285d2bfe4
This commit is contained in:
drh
2013-09-30 17:37:15 +00:00
parent 8b8d28dd5a
commit 92054fefcd
6 changed files with 1655 additions and 1555 deletions
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ext/misc/amatch.c
+6 -2
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@@ -786,6 +786,7 @@ static void amatchFree(amatch_vtab *p){
sqlite3_free(p->zVocabTab);
sqlite3_free(p->zVocabWord);
sqlite3_free(p->zVocabLang);
sqlite3_free(p->zSelf);
memset(p, 0, sizeof(*p));
sqlite3_free(p);
}
@@ -948,6 +949,9 @@ static void amatchClearCursor(amatch_cursor *pCur){
pCur->pAllWords = 0;
sqlite3_free(pCur->zInput);
pCur->zInput = 0;
sqlite3_free(pCur->zBuf);
pCur->zBuf = 0;
pCur->nBuf = 0;
pCur->pCost = 0;
pCur->pWord = 0;
pCur->pCurrent = 0;
@@ -1103,7 +1107,7 @@ static int amatchNext(sqlite3_vtab_cursor *cur){
char *zSql;
if( p->zVocabLang && p->zVocabLang[0] ){
zSql = sqlite3_mprintf(
"SELECT \"%s\" FROM \"%s\"",
"SELECT \"%w\" FROM \"%w\"",
" WHERE \"%w\">=?1 AND \"%w\"=?2"
" ORDER BY 1",
p->zVocabWord, p->zVocabTab,
@@ -1111,7 +1115,7 @@ static int amatchNext(sqlite3_vtab_cursor *cur){
);
}else{
zSql = sqlite3_mprintf(
"SELECT \"%s\" FROM \"%s\""
"SELECT \"%w\" FROM \"%w\""
" WHERE \"%w\">=?1"
" ORDER BY 1",
p->zVocabWord, p->zVocabTab,