sourcemod-central: extensions/sqlite/sqlite-source/tokenize.c@bee90c8ef6c3 (annotated)

ds@1952	1	/*
ds@1952	2	** 2001 September 15
ds@1952	3	**
ds@1952	4	** The author disclaims copyright to this source code. In place of
ds@1952	5	** a legal notice, here is a blessing:
ds@1952	6	**
ds@1952	7	** May you do good and not evil.
ds@1952	8	** May you find forgiveness for yourself and forgive others.
ds@1952	9	** May you share freely, never taking more than you give.
ds@1952	10	**
ds@1952	11	*************************************************************************
ds@1952	12	** An tokenizer for SQL
ds@1952	13	**
ds@1952	14	** This file contains C code that splits an SQL input string up into
ds@1952	15	** individual tokens and sends those tokens one-by-one over to the
ds@1952	16	** parser for analysis.
ds@1952	17	**
ds@1952	18	** $Id$
ds@1952	19	*/
ds@1952	20	#include "sqliteInt.h"
ds@1952	21	#include <ctype.h>
ds@1952	22	#include <stdlib.h>
ds@1952	23
ds@1952	24	/*
ds@1952	25	** The charMap() macro maps alphabetic characters into their
ds@1952	26	** lower-case ASCII equivalent. On ASCII machines, this is just
ds@1952	27	** an upper-to-lower case map. On EBCDIC machines we also need
ds@1952	28	** to adjust the encoding. Only alphabetic characters and underscores
ds@1952	29	** need to be translated.
ds@1952	30	*/
ds@1952	31	#ifdef SQLITE_ASCII
ds@1952	32	# define charMap(X) sqlite3UpperToLower[(unsigned char)X]
ds@1952	33	#endif
ds@1952	34	#ifdef SQLITE_EBCDIC
ds@1952	35	# define charMap(X) ebcdicToAscii[(unsigned char)X]
ds@1952	36	const unsigned char ebcdicToAscii[] = {
ds@1952	37	/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
ds@1952	38	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x */
ds@1952	39	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 1x */
ds@1952	40	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 2x */
ds@1952	41	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 3x */
ds@1952	42	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 4x */
ds@1952	43	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 5x */
ds@1952	44	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 95, 0, 0, /* 6x */
ds@1952	45	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 7x */
ds@1952	46	0, 97, 98, 99,100,101,102,103,104,105, 0, 0, 0, 0, 0, 0, /* 8x */
ds@1952	47	0,106,107,108,109,110,111,112,113,114, 0, 0, 0, 0, 0, 0, /* 9x */
ds@1952	48	0, 0,115,116,117,118,119,120,121,122, 0, 0, 0, 0, 0, 0, /* Ax */
ds@1952	49	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Bx */
ds@1952	50	0, 97, 98, 99,100,101,102,103,104,105, 0, 0, 0, 0, 0, 0, /* Cx */
ds@1952	51	0,106,107,108,109,110,111,112,113,114, 0, 0, 0, 0, 0, 0, /* Dx */
ds@1952	52	0, 0,115,116,117,118,119,120,121,122, 0, 0, 0, 0, 0, 0, /* Ex */
ds@1952	53	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Fx */
ds@1952	54	};
ds@1952	55	#endif
ds@1952	56
ds@1952	57	/*
ds@1952	58	** The sqlite3KeywordCode function looks up an identifier to determine if
ds@1952	59	** it is a keyword. If it is a keyword, the token code of that keyword is
ds@1952	60	** returned. If the input is not a keyword, TK_ID is returned.
ds@1952	61	**
ds@1952	62	** The implementation of this routine was generated by a program,
ds@1952	63	** mkkeywordhash.h, located in the tool subdirectory of the distribution.
ds@1952	64	** The output of the mkkeywordhash.c program is written into a file
ds@1952	65	** named keywordhash.h and then included into this source file by
ds@1952	66	** the #include below.
ds@1952	67	*/
ds@1952	68	#include "keywordhash.h"
ds@1952	69
ds@1952	70
ds@1952	71	/*
ds@1952	72	** If X is a character that can be used in an identifier then
ds@1952	73	** IdChar(X) will be true. Otherwise it is false.
ds@1952	74	**
ds@1952	75	** For ASCII, any character with the high-order bit set is
ds@1952	76	** allowed in an identifier. For 7-bit characters,
ds@1952	77	** sqlite3IsIdChar[X] must be 1.
ds@1952	78	**
ds@1952	79	** For EBCDIC, the rules are more complex but have the same
ds@1952	80	** end result.
ds@1952	81	**
ds@1952	82	** Ticket #1066. the SQL standard does not allow '$' in the
ds@1952	83	** middle of identfiers. But many SQL implementations do.
ds@1952	84	** SQLite will allow '$' in identifiers for compatibility.
ds@1952	85	** But the feature is undocumented.
ds@1952	86	*/
ds@1952	87	#ifdef SQLITE_ASCII
ds@1952	88	const char sqlite3IsAsciiIdChar[] = {
ds@1952	89	/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
ds@1952	90	0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 2x */
ds@1952	91	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 3x */
ds@1952	92	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 4x */
ds@1952	93	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, /* 5x */
ds@1952	94	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6x */
ds@1952	95	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, /* 7x */
ds@1952	96	};
ds@1952	97	#define IdChar(C) (((c=C)&0x80)!=0 \|\| (c>0x1f && sqlite3IsAsciiIdChar[c-0x20]))
ds@1952	98	#endif
ds@1952	99	#ifdef SQLITE_EBCDIC
ds@1952	100	const char sqlite3IsEbcdicIdChar[] = {
ds@1952	101	/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
ds@1952	102	0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 4x */
ds@1952	103	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, /* 5x */
ds@1952	104	0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, /* 6x */
ds@1952	105	0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, /* 7x */
ds@1952	106	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, /* 8x */
ds@1952	107	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, /* 9x */
ds@1952	108	1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, /* Ax */
ds@1952	109	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Bx */
ds@1952	110	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, /* Cx */
ds@1952	111	0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, /* Dx */
ds@1952	112	0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, /* Ex */
ds@1952	113	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, /* Fx */
ds@1952	114	};
ds@1952	115	#define IdChar(C) (((c=C)>=0x42 && sqlite3IsEbcdicIdChar[c-0x40]))
ds@1952	116	#endif
ds@1952	117
ds@1952	118
ds@1952	119	/*
ds@1952	120	** Return the length of the token that begins at z[0].
ds@1952	121	** Store the token type in *tokenType before returning.
ds@1952	122	*/
ds@1952	123	static int getToken(const unsigned char z, int tokenType){
ds@1952	124	int i, c;
ds@1952	125	switch( *z ){
ds@1952	126	case ' ': case '\t': case '\n': case '\f': case '\r': {
ds@1952	127	for(i=1; isspace(z[i]); i++){}
ds@1952	128	*tokenType = TK_SPACE;
ds@1952	129	return i;
ds@1952	130	}
ds@1952	131	case '-': {
ds@1952	132	if( z[1]=='-' ){
ds@1952	133	for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
ds@1952	134	*tokenType = TK_COMMENT;
ds@1952	135	return i;
ds@1952	136	}
ds@1952	137	*tokenType = TK_MINUS;
ds@1952	138	return 1;
ds@1952	139	}
ds@1952	140	case '(': {
ds@1952	141	*tokenType = TK_LP;
ds@1952	142	return 1;
ds@1952	143	}
ds@1952	144	case ')': {
ds@1952	145	*tokenType = TK_RP;
ds@1952	146	return 1;
ds@1952	147	}
ds@1952	148	case ';': {
ds@1952	149	*tokenType = TK_SEMI;
ds@1952	150	return 1;
ds@1952	151	}
ds@1952	152	case '+': {
ds@1952	153	*tokenType = TK_PLUS;
ds@1952	154	return 1;
ds@1952	155	}
ds@1952	156	case '*': {
ds@1952	157	*tokenType = TK_STAR;
ds@1952	158	return 1;
ds@1952	159	}
ds@1952	160	case '/': {
ds@1952	161	if( z[1]!='*' \|\| z[2]==0 ){
ds@1952	162	*tokenType = TK_SLASH;
ds@1952	163	return 1;
ds@1952	164	}
ds@1952	165	for(i=3, c=z[2]; (c!='*' \|\| z[i]!='/') && (c=z[i])!=0; i++){}
ds@1952	166	if( c ) i++;
ds@1952	167	*tokenType = TK_COMMENT;
ds@1952	168	return i;
ds@1952	169	}
ds@1952	170	case '%': {
ds@1952	171	*tokenType = TK_REM;
ds@1952	172	return 1;
ds@1952	173	}
ds@1952	174	case '=': {
ds@1952	175	*tokenType = TK_EQ;
ds@1952	176	return 1 + (z[1]=='=');
ds@1952	177	}
ds@1952	178	case '<': {
ds@1952	179	if( (c=z[1])=='=' ){
ds@1952	180	*tokenType = TK_LE;
ds@1952	181	return 2;
ds@1952	182	}else if( c=='>' ){
ds@1952	183	*tokenType = TK_NE;
ds@1952	184	return 2;
ds@1952	185	}else if( c=='<' ){
ds@1952	186	*tokenType = TK_LSHIFT;
ds@1952	187	return 2;
ds@1952	188	}else{
ds@1952	189	*tokenType = TK_LT;
ds@1952	190	return 1;
ds@1952	191	}
ds@1952	192	}
ds@1952	193	case '>': {
ds@1952	194	if( (c=z[1])=='=' ){
ds@1952	195	*tokenType = TK_GE;
ds@1952	196	return 2;
ds@1952	197	}else if( c=='>' ){
ds@1952	198	*tokenType = TK_RSHIFT;
ds@1952	199	return 2;
ds@1952	200	}else{
ds@1952	201	*tokenType = TK_GT;
ds@1952	202	return 1;
ds@1952	203	}
ds@1952	204	}
ds@1952	205	case '!': {
ds@1952	206	if( z[1]!='=' ){
ds@1952	207	*tokenType = TK_ILLEGAL;
ds@1952	208	return 2;
ds@1952	209	}else{
ds@1952	210	*tokenType = TK_NE;
ds@1952	211	return 2;
ds@1952	212	}
ds@1952	213	}
ds@1952	214	case '\|': {
ds@1952	215	if( z[1]!='\|' ){
ds@1952	216	*tokenType = TK_BITOR;
ds@1952	217	return 1;
ds@1952	218	}else{
ds@1952	219	*tokenType = TK_CONCAT;
ds@1952	220	return 2;
ds@1952	221	}
ds@1952	222	}
ds@1952	223	case ',': {
ds@1952	224	*tokenType = TK_COMMA;
ds@1952	225	return 1;
ds@1952	226	}
ds@1952	227	case '&': {
ds@1952	228	*tokenType = TK_BITAND;
ds@1952	229	return 1;
ds@1952	230	}
ds@1952	231	case '~': {
ds@1952	232	*tokenType = TK_BITNOT;
ds@1952	233	return 1;
ds@1952	234	}
ds@1952	235	case '`':
ds@1952	236	case '\'':
ds@1952	237	case '"': {
ds@1952	238	int delim = z[0];
ds@1952	239	for(i=1; (c=z[i])!=0; i++){
ds@1952	240	if( c==delim ){
ds@1952	241	if( z[i+1]==delim ){
ds@1952	242	i++;
ds@1952	243	}else{
ds@1952	244	break;
ds@1952	245	}
ds@1952	246	}
ds@1952	247	}
ds@1952	248	if( c ){
ds@1952	249	*tokenType = TK_STRING;
ds@1952	250	return i+1;
ds@1952	251	}else{
ds@1952	252	*tokenType = TK_ILLEGAL;
ds@1952	253	return i;
ds@1952	254	}
ds@1952	255	}
ds@1952	256	case '.': {
ds@1952	257	#ifndef SQLITE_OMIT_FLOATING_POINT
ds@1952	258	if( !isdigit(z[1]) )
ds@1952	259	#endif
ds@1952	260	{
ds@1952	261	*tokenType = TK_DOT;
ds@1952	262	return 1;
ds@1952	263	}
ds@1952	264	/* If the next character is a digit, this is a floating point
ds@1952	265	** number that begins with ".". Fall thru into the next case */
ds@1952	266	}
ds@1952	267	case '0': case '1': case '2': case '3': case '4':
ds@1952	268	case '5': case '6': case '7': case '8': case '9': {
ds@1952	269	*tokenType = TK_INTEGER;
ds@1952	270	for(i=0; isdigit(z[i]); i++){}
ds@1952	271	#ifndef SQLITE_OMIT_FLOATING_POINT
ds@1952	272	if( z[i]=='.' ){
ds@1952	273	i++;
ds@1952	274	while( isdigit(z[i]) ){ i++; }
ds@1952	275	*tokenType = TK_FLOAT;
ds@1952	276	}
ds@1952	277	if( (z[i]=='e' \|\| z[i]=='E') &&
ds@1952	278	( isdigit(z[i+1])
ds@1952	279	\|\| ((z[i+1]=='+' \|\| z[i+1]=='-') && isdigit(z[i+2]))
ds@1952	280	)
ds@1952	281	){
ds@1952	282	i += 2;
ds@1952	283	while( isdigit(z[i]) ){ i++; }
ds@1952	284	*tokenType = TK_FLOAT;
ds@1952	285	}
ds@1952	286	#endif
ds@1952	287	while( IdChar(z[i]) ){
ds@1952	288	*tokenType = TK_ILLEGAL;
ds@1952	289	i++;
ds@1952	290	}
ds@1952	291	return i;
ds@1952	292	}
ds@1952	293	case '[': {
ds@1952	294	for(i=1, c=z[0]; c!=']' && (c=z[i])!=0; i++){}
ds@1952	295	*tokenType = TK_ID;
ds@1952	296	return i;
ds@1952	297	}
ds@1952	298	case '?': {
ds@1952	299	*tokenType = TK_VARIABLE;
ds@1952	300	for(i=1; isdigit(z[i]); i++){}
ds@1952	301	return i;
ds@1952	302	}
ds@1952	303	case '#': {
ds@1952	304	for(i=1; isdigit(z[i]); i++){}
ds@1952	305	if( i>1 ){
ds@1952	306	/* Parameters of the form #NNN (where NNN is a number) are used
ds@1952	307	** internally by sqlite3NestedParse. */
ds@1952	308	*tokenType = TK_REGISTER;
ds@1952	309	return i;
ds@1952	310	}
ds@1952	311	/* Fall through into the next case if the '#' is not followed by
ds@1952	312	** a digit. Try to match #AAAA where AAAA is a parameter name. */
ds@1952	313	}
ds@1952	314	#ifndef SQLITE_OMIT_TCL_VARIABLE
ds@1952	315	case '$':
ds@1952	316	#endif
ds@1952	317	case '@': /* For compatibility with MS SQL Server */
ds@1952	318	case ':': {
ds@1952	319	int n = 0;
ds@1952	320	*tokenType = TK_VARIABLE;
ds@1952	321	for(i=1; (c=z[i])!=0; i++){
ds@1952	322	if( IdChar(c) ){
ds@1952	323	n++;
ds@1952	324	#ifndef SQLITE_OMIT_TCL_VARIABLE
ds@1952	325	}else if( c=='(' && n>0 ){
ds@1952	326	do{
ds@1952	327	i++;
ds@1952	328	}while( (c=z[i])!=0 && !isspace(c) && c!=')' );
ds@1952	329	if( c==')' ){
ds@1952	330	i++;
ds@1952	331	}else{
ds@1952	332	*tokenType = TK_ILLEGAL;
ds@1952	333	}
ds@1952	334	break;
ds@1952	335	}else if( c==':' && z[i+1]==':' ){
ds@1952	336	i++;
ds@1952	337	#endif
ds@1952	338	}else{
ds@1952	339	break;
ds@1952	340	}
ds@1952	341	}
ds@1952	342	if( n==0 ) *tokenType = TK_ILLEGAL;
ds@1952	343	return i;
ds@1952	344	}
ds@1952	345	#ifndef SQLITE_OMIT_BLOB_LITERAL
ds@1952	346	case 'x': case 'X': {
ds@1952	347	if( (c=z[1])=='\'' \|\| c=='"' ){
ds@1952	348	int delim = c;
ds@1952	349	*tokenType = TK_BLOB;
ds@1952	350	for(i=2; (c=z[i])!=0; i++){
ds@1952	351	if( c==delim ){
ds@1952	352	if( i%2 ) *tokenType = TK_ILLEGAL;
ds@1952	353	break;
ds@1952	354	}
ds@1952	355	if( !isxdigit(c) ){
ds@1952	356	*tokenType = TK_ILLEGAL;
ds@1952	357	return i;
ds@1952	358	}
ds@1952	359	}
ds@1952	360	if( c ) i++;
ds@1952	361	return i;
ds@1952	362	}
ds@1952	363	/* Otherwise fall through to the next case */
ds@1952	364	}
ds@1952	365	#endif
ds@1952	366	default: {
ds@1952	367	if( !IdChar(*z) ){
ds@1952	368	break;
ds@1952	369	}
ds@1952	370	for(i=1; IdChar(z[i]); i++){}
ds@1952	371	tokenType = keywordCode((char)z, i);
ds@1952	372	return i;
ds@1952	373	}
ds@1952	374	}
ds@1952	375	*tokenType = TK_ILLEGAL;
ds@1952	376	return 1;
ds@1952	377	}
ds@1952	378	int sqlite3GetToken(const unsigned char z, int tokenType){
ds@1952	379	return getToken(z, tokenType);
ds@1952	380	}
ds@1952	381
ds@1952	382	/*
ds@1952	383	** Run the parser on the given SQL string. The parser structure is
ds@1952	384	** passed in. An SQLITE_ status code is returned. If an error occurs
ds@1952	385	** and pzErrMsg!=NULL then an error message might be written into
ds@1952	386	** memory obtained from sqlite3_malloc() and *pzErrMsg made to point to that
ds@1952	387	** error message. Or maybe not.
ds@1952	388	*/
ds@1952	389	int sqlite3RunParser(Parse pParse, const char zSql, char **pzErrMsg){
ds@1952	390	int nErr = 0;
ds@1952	391	int i;
ds@1952	392	void *pEngine;
ds@1952	393	int tokenType;
ds@1952	394	int lastTokenParsed = -1;
ds@1952	395	sqlite3 *db = pParse->db;
ds@1952	396
ds@1952	397	if( db->activeVdbeCnt==0 ){
ds@1952	398	db->u1.isInterrupted = 0;
ds@1952	399	}
ds@1952	400	pParse->rc = SQLITE_OK;
ds@1952	401	i = 0;
ds@1952	402	pEngine = sqlite3ParserAlloc((void()(size_t))sqlite3_malloc);
ds@1952	403	if( pEngine==0 ){
ds@1952	404	db->mallocFailed = 1;
ds@1952	405	return SQLITE_NOMEM;
ds@1952	406	}
ds@1952	407	assert( pParse->sLastToken.dyn==0 );
ds@1952	408	assert( pParse->pNewTable==0 );
ds@1952	409	assert( pParse->pNewTrigger==0 );
ds@1952	410	assert( pParse->nVar==0 );
ds@1952	411	assert( pParse->nVarExpr==0 );
ds@1952	412	assert( pParse->nVarExprAlloc==0 );
ds@1952	413	assert( pParse->apVarExpr==0 );
ds@1952	414	pParse->zTail = pParse->zSql = zSql;
ds@1952	415	while( !db->mallocFailed && zSql[i]!=0 ){
ds@1952	416	assert( i>=0 );
ds@1952	417	pParse->sLastToken.z = (u8*)&zSql[i];
ds@1952	418	assert( pParse->sLastToken.dyn==0 );
ds@1952	419	pParse->sLastToken.n = getToken((unsigned char*)&zSql[i],&tokenType);
ds@1952	420	i += pParse->sLastToken.n;
ds@1952	421	if( i>SQLITE_MAX_SQL_LENGTH ){
ds@1952	422	pParse->rc = SQLITE_TOOBIG;
ds@1952	423	break;
ds@1952	424	}
ds@1952	425	switch( tokenType ){
ds@1952	426	case TK_SPACE:
ds@1952	427	case TK_COMMENT: {
ds@1952	428	if( db->u1.isInterrupted ){
ds@1952	429	pParse->rc = SQLITE_INTERRUPT;
ds@1952	430	sqlite3SetString(pzErrMsg, "interrupt", (char*)0);
ds@1952	431	goto abort_parse;
ds@1952	432	}
ds@1952	433	break;
ds@1952	434	}
ds@1952	435	case TK_ILLEGAL: {
ds@1952	436	if( pzErrMsg ){
ds@1952	437	sqlite3_free(*pzErrMsg);
ds@1952	438	*pzErrMsg = sqlite3MPrintf(db, "unrecognized token: \"%T\"",
ds@1952	439	&pParse->sLastToken);
ds@1952	440	}
ds@1952	441	nErr++;
ds@1952	442	goto abort_parse;
ds@1952	443	}
ds@1952	444	case TK_SEMI: {
ds@1952	445	pParse->zTail = &zSql[i];
ds@1952	446	/* Fall thru into the default case */
ds@1952	447	}
ds@1952	448	default: {
ds@1952	449	sqlite3Parser(pEngine, tokenType, pParse->sLastToken, pParse);
ds@1952	450	lastTokenParsed = tokenType;
ds@1952	451	if( pParse->rc!=SQLITE_OK ){
ds@1952	452	goto abort_parse;
ds@1952	453	}
ds@1952	454	break;
ds@1952	455	}
ds@1952	456	}
ds@1952	457	}
ds@1952	458	abort_parse:
ds@1952	459	if( zSql[i]==0 && nErr==0 && pParse->rc==SQLITE_OK ){
ds@1952	460	if( lastTokenParsed!=TK_SEMI ){
ds@1952	461	sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse);
ds@1952	462	pParse->zTail = &zSql[i];
ds@1952	463	}
ds@1952	464	sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
ds@1952	465	}
ds@1952	466	sqlite3ParserFree(pEngine, sqlite3_free);
ds@1952	467	if( db->mallocFailed ){
ds@1952	468	pParse->rc = SQLITE_NOMEM;
ds@1952	469	}
ds@1952	470	if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){
ds@1952	471	sqlite3SetString(&pParse->zErrMsg, sqlite3ErrStr(pParse->rc), (char*)0);
ds@1952	472	}
ds@1952	473	if( pParse->zErrMsg ){
ds@1952	474	if( pzErrMsg && *pzErrMsg==0 ){
ds@1952	475	*pzErrMsg = pParse->zErrMsg;
ds@1952	476	}else{
ds@1952	477	sqlite3_free(pParse->zErrMsg);
ds@1952	478	}
ds@1952	479	pParse->zErrMsg = 0;
ds@1952	480	if( !nErr ) nErr++;
ds@1952	481	}
ds@1952	482	if( pParse->pVdbe && pParse->nErr>0 && pParse->nested==0 ){
ds@1952	483	sqlite3VdbeDelete(pParse->pVdbe);
ds@1952	484	pParse->pVdbe = 0;
ds@1952	485	}
ds@1952	486	#ifndef SQLITE_OMIT_SHARED_CACHE
ds@1952	487	if( pParse->nested==0 ){
ds@1952	488	sqlite3_free(pParse->aTableLock);
ds@1952	489	pParse->aTableLock = 0;
ds@1952	490	pParse->nTableLock = 0;
ds@1952	491	}
ds@1952	492	#endif
ds@1952	493
ds@1952	494	if( !IN_DECLARE_VTAB ){
ds@1952	495	/* If the pParse->declareVtab flag is set, do not delete any table
ds@1952	496	** structure built up in pParse->pNewTable. The calling code (see vtab.c)
ds@1952	497	** will take responsibility for freeing the Table structure.
ds@1952	498	*/
ds@1952	499	sqlite3DeleteTable(pParse->pNewTable);
ds@1952	500	}
ds@1952	501
ds@1952	502	sqlite3DeleteTrigger(pParse->pNewTrigger);
ds@1952	503	sqlite3_free(pParse->apVarExpr);
ds@1952	504	if( nErr>0 && (pParse->rc==SQLITE_OK \|\| pParse->rc==SQLITE_DONE) ){
ds@1952	505	pParse->rc = SQLITE_ERROR;
ds@1952	506	}
ds@1952	507	return nErr;
ds@1952	508	}

author	Asher Baker <asherkin@gmail.com>
	Thu Apr 26 16:58:18 2012 +0100 (2012-04-26)
changeset 3488	bee90c8ef6c3
parent 1952	b7aa2b626807
permissions	-rw-r--r--