SQLITE_PRIVATE int sqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
int nErr = 0; /* Number of errors encountered */
int i; /* Loop counter */
void *pEngine; /* The LEMON-generated LALR(1) parser */
int tokenType; /* type of the next token */
int lastTokenParsed = -1; /* type of the previous token */
sqlite3 *db = pParse->db; /* The database connection */
int mxSqlLen; /* Max length of an SQL string */
assert( zSql!=0 );
mxSqlLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH];
if( db->nVdbeActive==0 ){
db->u1.isInterrupted = 0;
}
pParse->rc = SQLITE_OK;
pParse->zTail = zSql;
i = 0;
assert( pzErrMsg!=0 );
/* sqlite3ParserTrace(stdout, "parser: "); */
pEngine = sqlite3ParserAlloc(sqlite3Malloc);
if( pEngine==0 ){
sqlite3OomFault(db);
return SQLITE_NOMEM_BKPT;
}
assert( pParse->pNewTable==0 );
assert( pParse->pNewTrigger==0 );
assert( pParse->nVar==0 );
assert( pParse->pVList==0 );
while( 1 ){
assert( i>=0 );
if( zSql[i]!=0 ){
pParse->sLastToken.z = &zSql[i];
pParse->sLastToken.n = sqlite3GetToken((u8*)&zSql[i],&tokenType);
i += pParse->sLastToken.n;
if( i>mxSqlLen ){
pParse->rc = SQLITE_TOOBIG;
break;
}
}else{
/* Upon reaching the end of input, call the parser two more times
** with tokens TK_SEMI and 0, in that order. */
if( lastTokenParsed==TK_SEMI ){
tokenType = 0;
}else if( lastTokenParsed==0 ){
break;
}else{
tokenType = TK_SEMI;
}
}
if( tokenType>=TK_SPACE ){
assert( tokenType==TK_SPACE || tokenType==TK_ILLEGAL );
if( db->u1.isInterrupted ){
pParse->rc = SQLITE_INTERRUPT;
break;
}
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];
#ifdef YYTRACKMAXSTACKDEPTH
sqlite3_mutex_enter(sqlite3MallocMutex());
sqlite3StatusHighwater(SQLITE_STATUS_PARSER_STACK,
sqlite3ParserStackPeak(pEngine)
);
sqlite3_mutex_leave(sqlite3MallocMutex());
#endif /* YYDEBUG */
sqlite3ParserFree(pEngine, sqlite3_free);
if( db->mallocFailed ){
pParse->rc = SQLITE_NOMEM_BKPT;
}
if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){
pParse->zErrMsg = sqlite3MPrintf(db, "%s", sqlite3ErrStr(pParse->rc));
}
assert( pzErrMsg!=0 );
if( pParse->zErrMsg ){
*pzErrMsg = pParse->zErrMsg;
sqlite3_log(pParse->rc, "%s", *pzErrMsg);
pParse->zErrMsg = 0;
nErr++;
}
if( pParse->pVdbe && pParse->nErr>0 && pParse->nested==0 ){
sqlite3VdbeDelete(pParse->pVdbe);
pParse->pVdbe = 0;
}
#ifndef SQLITE_OMIT_SHARED_CACHE
if( pParse->nested==0 ){
sqlite3DbFree(db, pParse->aTableLock);
pParse->aTableLock = 0;
pParse->nTableLock = 0;
}
#endif
#ifndef SQLITE_OMIT_VIRTUALTABLE
sqlite3_free(pParse->apVtabLock);
#endif