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Overview
| Comment: | Minor simplification to the tokenizer. Slightly smaller and faster. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
9570b6b43df3bc5ce314cded20bca8be |
| User & Date: | drh 2016-02-16 13:04:19 |
References
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2016-02-18
| ||
| 14:49 | Avoid a potential buffer overrun if an SQL statement being parsed ends with an illegal "!" token. (This problem was detected by fuzzcheck running under valgrind. The problem was introduced by check-in [9570b6b43df3], two days ago and has not appeared in a release.) (check-in: 2a8d97e7 user: drh tags: trunk) | |
Context
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2016-02-17
| ||
| 11:13 | Documentation typo on sqlite3_wal_hook(). No changes to code. (check-in: fc2043eb user: drh tags: trunk) | |
|
2016-02-16
| ||
| 21:19 | Experimental changes to Lemon for improved parser performance. (check-in: a65d583c user: drh tags: parser-performance) | |
| 13:04 | Minor simplification to the tokenizer. Slightly smaller and faster. (check-in: 9570b6b4 user: drh tags: trunk) | |
| 01:01 | Improve the Lemon parser template (lempar.c) so that it avoids unnecessary work when the grammer defines YYNOERRORRECOVERY (as SQLite does). Slightly smaller and faster code results. (check-in: 9235b0cf user: drh tags: trunk) | |
Changes
Changes to src/tokenize.c.
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}
if( tokenType==TK_ILLEGAL ){
sqlite3ErrorMsg(pParse, "unrecognized token: \"%T\"",
&pParse->sLastToken);
break;
}
}else{
if( tokenType==TK_SEMI ) pParse->zTail = &zSql[i];
sqlite3Parser(pEngine, tokenType, pParse->sLastToken, pParse);
lastTokenParsed = tokenType;
if( pParse->rc!=SQLITE_OK || db->mallocFailed ) break;
}
}
assert( nErr==0 );
if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
assert( zSql[i]==0 );
if( lastTokenParsed!=TK_SEMI ){
sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse);
pParse->zTail = &zSql[i];
}
if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
}
}
#ifdef YYTRACKMAXSTACKDEPTH
sqlite3_mutex_enter(sqlite3MallocMutex());
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< > < |
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}
if( tokenType==TK_ILLEGAL ){
sqlite3ErrorMsg(pParse, "unrecognized token: \"%T\"",
&pParse->sLastToken);
break;
}
}else{
sqlite3Parser(pEngine, tokenType, pParse->sLastToken, pParse);
lastTokenParsed = tokenType;
if( pParse->rc!=SQLITE_OK || db->mallocFailed ) break;
}
}
assert( nErr==0 );
pParse->zTail = &zSql[i];
if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
assert( zSql[i]==0 );
if( lastTokenParsed!=TK_SEMI ){
sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse);
}
if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
}
}
#ifdef YYTRACKMAXSTACKDEPTH
sqlite3_mutex_enter(sqlite3MallocMutex());
|