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-rw-r--r--kopete/plugins/statistics/sqlite/tokenize.c707
1 files changed, 0 insertions, 707 deletions
diff --git a/kopete/plugins/statistics/sqlite/tokenize.c b/kopete/plugins/statistics/sqlite/tokenize.c
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--- a/kopete/plugins/statistics/sqlite/tokenize.c
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-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-*************************************************************************
-** An tokenizer for SQL
-**
-** This file contains C code that splits an SQL input string up into
-** individual tokens and sends those tokens one-by-one over to the
-** parser for analysis.
-**
-** $Id$
-*/
-#include "sqliteInt.h"
-#include "os.h"
-#include <ctype.h>
-#include <stdlib.h>
-
-/*
-** This function looks up an identifier to determine if it is a
-** keyword. If it is a keyword, the token code of that keyword is
-** returned. If the input is not a keyword, TK_ID is returned.
-**
-** The implementation of this routine was generated by a program,
-** mkkeywordhash.c, located in the tool subdirectory of the distribution.
-** The output of the mkkeywordhash.c program was manually cut and pasted
-** into this file. When the set of keywords for SQLite changes, you
-** must modify the mkkeywordhash.c program (to add or remove keywords from
-** the data tables) then rerun that program to regenerate this function.
-*/
-int sqlite3KeywordCode(const char *z, int n){
- static const char zText[519] =
- "ABORTAFTERALLANDASCATTACHBEFOREBEGINBETWEENBYCASCADECASECHECK"
- "COLLATECOMMITCONFLICTCONSTRAINTCREATECROSSDATABASEDEFAULTDEFERRABLE"
- "DEFERREDDELETEDESCDETACHDISTINCTDROPEACHELSEENDEXCEPTEXCLUSIVE"
- "EXPLAINFAILFOREIGNFROMFULLGLOBGROUPHAVINGIGNOREIMMEDIATEINDEX"
- "INITIALLYINNERINSERTINSTEADINTERSECTINTOISNULLJOINKEYLEFTLIKE"
- "LIMITMATCHNATURALNOTNULLNULLOFFSETONORDEROUTERPRAGMAPRIMARYRAISE"
- "REFERENCESREPLACERESTRICTRIGHTROLLBACKROWSELECTSETSTATEMENTTABLE"
- "TEMPORARYTHENTRANSACTIONTRIGGERUNIONUNIQUEUPDATEUSINGVACUUMVALUES"
- "VIEWWHENWHERE";
- static const unsigned char aHash[154] = {
- 0, 75, 82, 0, 0, 97, 80, 0, 83, 0, 0, 0, 0,
- 0, 0, 6, 0, 95, 4, 0, 0, 0, 0, 0, 0, 0,
- 0, 96, 86, 8, 0, 26, 13, 7, 19, 15, 0, 0, 32,
- 25, 0, 21, 31, 41, 0, 0, 0, 34, 27, 0, 0, 30,
- 0, 0, 0, 9, 0, 10, 0, 0, 0, 0, 51, 0, 44,
- 43, 0, 45, 40, 0, 29, 39, 35, 0, 0, 20, 0, 59,
- 0, 16, 0, 17, 0, 18, 0, 55, 42, 72, 0, 33, 0,
- 0, 61, 66, 56, 0, 0, 0, 0, 0, 0, 0, 54, 0,
- 0, 0, 0, 0, 74, 50, 76, 64, 52, 0, 0, 0, 0,
- 68, 84, 0, 47, 0, 58, 60, 92, 0, 0, 48, 0, 93,
- 0, 63, 71, 98, 0, 0, 0, 0, 0, 67, 0, 0, 0,
- 0, 87, 0, 0, 0, 0, 0, 90, 88, 0, 94,
- };
- static const unsigned char aNext[98] = {
- 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 12, 0, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0,
- 0, 0, 0, 14, 3, 24, 0, 0, 0, 1, 22, 0, 0,
- 36, 23, 28, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0,
- 0, 49, 37, 0, 0, 0, 38, 0, 53, 0, 57, 62, 0,
- 0, 0, 0, 0, 0, 70, 46, 0, 65, 0, 0, 0, 0,
- 69, 73, 0, 77, 0, 0, 0, 0, 0, 0, 81, 85, 0,
- 91, 79, 78, 0, 0, 89, 0,
- };
- static const unsigned char aLen[98] = {
- 5, 5, 3, 3, 2, 3, 6, 6, 5, 7, 2, 7, 4,
- 5, 7, 6, 8, 10, 6, 5, 8, 7, 10, 8, 6, 4,
- 6, 8, 4, 4, 4, 3, 6, 9, 7, 4, 3, 7, 4,
- 4, 4, 5, 6, 6, 9, 2, 5, 9, 5, 6, 7, 9,
- 4, 2, 6, 4, 3, 4, 4, 5, 5, 7, 3, 7, 4,
- 2, 6, 2, 2, 5, 5, 6, 7, 5, 10, 7, 8, 5,
- 8, 3, 6, 3, 9, 5, 4, 9, 4, 11, 7, 5, 6,
- 6, 5, 6, 6, 4, 4, 5,
- };
- static const unsigned short int aOffset[98] = {
- 0, 5, 10, 13, 16, 16, 19, 25, 31, 36, 43, 45, 52,
- 56, 61, 68, 74, 82, 92, 98, 103, 111, 118, 128, 136, 142,
- 146, 152, 160, 164, 168, 172, 175, 181, 190, 197, 201, 201, 208,
- 212, 216, 220, 225, 231, 237, 246, 246, 251, 260, 265, 271, 278,
- 287, 291, 291, 297, 301, 304, 308, 312, 317, 322, 329, 329, 336,
- 340, 340, 346, 348, 348, 353, 358, 364, 371, 376, 386, 393, 401,
- 406, 414, 417, 423, 426, 435, 440, 440, 449, 453, 464, 471, 476,
- 482, 488, 493, 499, 505, 509, 513,
- };
- static const unsigned char aCode[98] = {
- TK_ABORT, TK_AFTER, TK_ALL, TK_AND, TK_AS,
- TK_ASC, TK_ATTACH, TK_BEFORE, TK_BEGIN, TK_BETWEEN,
- TK_BY, TK_CASCADE, TK_CASE, TK_CHECK, TK_COLLATE,
- TK_COMMIT, TK_CONFLICT, TK_CONSTRAINT, TK_CREATE, TK_JOIN_KW,
- TK_DATABASE, TK_DEFAULT, TK_DEFERRABLE, TK_DEFERRED, TK_DELETE,
- TK_DESC, TK_DETACH, TK_DISTINCT, TK_DROP, TK_EACH,
- TK_ELSE, TK_END, TK_EXCEPT, TK_EXCLUSIVE, TK_EXPLAIN,
- TK_FAIL, TK_FOR, TK_FOREIGN, TK_FROM, TK_JOIN_KW,
- TK_GLOB, TK_GROUP, TK_HAVING, TK_IGNORE, TK_IMMEDIATE,
- TK_IN, TK_INDEX, TK_INITIALLY, TK_JOIN_KW, TK_INSERT,
- TK_INSTEAD, TK_INTERSECT, TK_INTO, TK_IS, TK_ISNULL,
- TK_JOIN, TK_KEY, TK_JOIN_KW, TK_LIKE, TK_LIMIT,
- TK_MATCH, TK_JOIN_KW, TK_NOT, TK_NOTNULL, TK_NULL,
- TK_OF, TK_OFFSET, TK_ON, TK_OR, TK_ORDER,
- TK_JOIN_KW, TK_PRAGMA, TK_PRIMARY, TK_RAISE, TK_REFERENCES,
- TK_REPLACE, TK_RESTRICT, TK_JOIN_KW, TK_ROLLBACK, TK_ROW,
- TK_SELECT, TK_SET, TK_STATEMENT, TK_TABLE, TK_TEMP,
- TK_TEMP, TK_THEN, TK_TRANSACTION,TK_TRIGGER, TK_UNION,
- TK_UNIQUE, TK_UPDATE, TK_USING, TK_VACUUM, TK_VALUES,
- TK_VIEW, TK_WHEN, TK_WHERE,
- };
- int h, i;
- if( n<2 ) return TK_ID;
- h = (sqlite3UpperToLower[((unsigned char*)z)[0]]*5 +
- sqlite3UpperToLower[((unsigned char*)z)[n-1]]*3 +
- n) % 154;
- for(i=((int)aHash[h])-1; i>=0; i=((int)aNext[i])-1){
- if( aLen[i]==n && sqlite3StrNICmp(&zText[aOffset[i]],z,n)==0 ){
- return aCode[i];
- }
- }
- return TK_ID;
-}
-
-/*
-** If X is a character that can be used in an identifier and
-** X&0x80==0 then isIdChar[X] will be 1. If X&0x80==0x80 then
-** X is always an identifier character. (Hence all UTF-8
-** characters can be part of an identifier). isIdChar[X] will
-** be 0 for every character in the lower 128 ASCII characters
-** that cannot be used as part of an identifier.
-**
-** In this implementation, an identifier can be a string of
-** alphabetic characters, digits, and "_" plus any character
-** with the high-order bit set. The latter rule means that
-** any sequence of UTF-8 characters or characters taken from
-** an extended ISO8859 character set can form an identifier.
-*/
-static const char isIdChar[] = {
-/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 3x */
- 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 4x */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, /* 5x */
- 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6x */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, /* 7x */
-};
-
-#define IdChar(C) (((c=C)&0x80)!=0 || (c>0x2f && isIdChar[c-0x30]))
-
-/*
-** Return the length of the token that begins at z[0].
-** Store the token type in *tokenType before returning.
-*/
-static int sqliteGetToken(const unsigned char *z, int *tokenType){
- int i, c;
- switch( *z ){
- case ' ': case '\t': case '\n': case '\f': case '\r': {
- for(i=1; isspace(z[i]); i++){}
- *tokenType = TK_SPACE;
- return i;
- }
- case '-': {
- if( z[1]=='-' ){
- for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
- *tokenType = TK_COMMENT;
- return i;
- }
- *tokenType = TK_MINUS;
- return 1;
- }
- case '(': {
- *tokenType = TK_LP;
- return 1;
- }
- case ')': {
- *tokenType = TK_RP;
- return 1;
- }
- case ';': {
- *tokenType = TK_SEMI;
- return 1;
- }
- case '+': {
- *tokenType = TK_PLUS;
- return 1;
- }
- case '*': {
- *tokenType = TK_STAR;
- return 1;
- }
- case '/': {
- if( z[1]!='*' || z[2]==0 ){
- *tokenType = TK_SLASH;
- return 1;
- }
- for(i=3, c=z[2]; (c!='*' || z[i]!='/') && (c=z[i])!=0; i++){}
- if( c ) i++;
- *tokenType = TK_COMMENT;
- return i;
- }
- case '%': {
- *tokenType = TK_REM;
- return 1;
- }
- case '=': {
- *tokenType = TK_EQ;
- return 1 + (z[1]=='=');
- }
- case '<': {
- if( (c=z[1])=='=' ){
- *tokenType = TK_LE;
- return 2;
- }else if( c=='>' ){
- *tokenType = TK_NE;
- return 2;
- }else if( c=='<' ){
- *tokenType = TK_LSHIFT;
- return 2;
- }else{
- *tokenType = TK_LT;
- return 1;
- }
- }
- case '>': {
- if( (c=z[1])=='=' ){
- *tokenType = TK_GE;
- return 2;
- }else if( c=='>' ){
- *tokenType = TK_RSHIFT;
- return 2;
- }else{
- *tokenType = TK_GT;
- return 1;
- }
- }
- case '!': {
- if( z[1]!='=' ){
- *tokenType = TK_ILLEGAL;
- return 2;
- }else{
- *tokenType = TK_NE;
- return 2;
- }
- }
- case '|': {
- if( z[1]!='|' ){
- *tokenType = TK_BITOR;
- return 1;
- }else{
- *tokenType = TK_CONCAT;
- return 2;
- }
- }
- case ',': {
- *tokenType = TK_COMMA;
- return 1;
- }
- case '&': {
- *tokenType = TK_BITAND;
- return 1;
- }
- case '~': {
- *tokenType = TK_BITNOT;
- return 1;
- }
- case '\'': case '"': {
- int delim = z[0];
- for(i=1; (c=z[i])!=0; i++){
- if( c==delim ){
- if( z[i+1]==delim ){
- i++;
- }else{
- break;
- }
- }
- }
- if( c ) i++;
- *tokenType = TK_STRING;
- return i;
- }
- case '.': {
- *tokenType = TK_DOT;
- return 1;
- }
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9': {
- *tokenType = TK_INTEGER;
- for(i=1; isdigit(z[i]); i++){}
- if( z[i]=='.' && isdigit(z[i+1]) ){
- i += 2;
- while( isdigit(z[i]) ){ i++; }
- *tokenType = TK_FLOAT;
- }
- if( (z[i]=='e' || z[i]=='E') &&
- ( isdigit(z[i+1])
- || ((z[i+1]=='+' || z[i+1]=='-') && isdigit(z[i+2]))
- )
- ){
- i += 2;
- while( isdigit(z[i]) ){ i++; }
- *tokenType = TK_FLOAT;
- }
- return i;
- }
- case '[': {
- for(i=1, c=z[0]; c!=']' && (c=z[i])!=0; i++){}
- *tokenType = TK_ID;
- return i;
- }
- case '?': {
- *tokenType = TK_VARIABLE;
- for(i=1; isdigit(z[i]); i++){}
- return i;
- }
- case ':': {
- for(i=1; IdChar(z[i]); i++){}
- *tokenType = i>1 ? TK_VARIABLE : TK_ILLEGAL;
- return i;
- }
- case '$': {
- *tokenType = TK_VARIABLE;
- if( z[1]=='{' ){
- int nBrace = 1;
- for(i=2; (c=z[i])!=0 && nBrace; i++){
- if( c=='{' ){
- nBrace++;
- }else if( c=='}' ){
- nBrace--;
- }
- }
- if( c==0 ) *tokenType = TK_ILLEGAL;
- }else{
- int n = 0;
- for(i=1; (c=z[i])!=0; i++){
- if( isalnum(c) || c=='_' ){
- n++;
- }else if( c=='(' && n>0 ){
- do{
- i++;
- }while( (c=z[i])!=0 && !isspace(c) && c!=')' );
- if( c==')' ){
- i++;
- }else{
- *tokenType = TK_ILLEGAL;
- }
- break;
- }else if( c==':' && z[i+1]==':' ){
- i++;
- }else{
- break;
- }
- }
- if( n==0 ) *tokenType = TK_ILLEGAL;
- }
- return i;
- }
- case 'x': case 'X': {
- if( (c=z[1])=='\'' || c=='"' ){
- int delim = c;
- *tokenType = TK_BLOB;
- for(i=2; (c=z[i])!=0; i++){
- if( c==delim ){
- if( i%2 ) *tokenType = TK_ILLEGAL;
- break;
- }
- if( !isxdigit(c) ){
- *tokenType = TK_ILLEGAL;
- return i;
- }
- }
- if( c ) i++;
- return i;
- }
- /* Otherwise fall through to the next case */
- }
- default: {
- if( !IdChar(*z) ){
- break;
- }
- for(i=1; IdChar(z[i]); i++){}
- *tokenType = sqlite3KeywordCode((char*)z, i);
- return i;
- }
- }
- *tokenType = TK_ILLEGAL;
- return 1;
-}
-
-/*
-** Run the parser on the given SQL string. The parser structure is
-** passed in. An SQLITE_ status code is returned. If an error occurs
-** and pzErrMsg!=NULL then an error message might be written into
-** memory obtained from malloc() and *pzErrMsg made to point to that
-** error message. Or maybe not.
-*/
-int sqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
- int nErr = 0;
- int i;
- void *pEngine;
- int tokenType;
- int lastTokenParsed = -1;
- sqlite3 *db = pParse->db;
- extern void *sqlite3ParserAlloc(void*(*)(int));
- extern void sqlite3ParserFree(void*, void(*)(void*));
- extern int sqlite3Parser(void*, int, Token, Parse*);
-
- db->flags &= ~SQLITE_Interrupt;
- pParse->rc = SQLITE_OK;
- i = 0;
- pEngine = sqlite3ParserAlloc((void*(*)(int))malloc);
- if( pEngine==0 ){
- sqlite3SetString(pzErrMsg, "out of memory", (char*)0);
- return 1;
- }
- assert( pParse->sLastToken.dyn==0 );
- assert( pParse->pNewTable==0 );
- assert( pParse->pNewTrigger==0 );
- assert( pParse->nVar==0 );
- assert( pParse->nVarExpr==0 );
- assert( pParse->nVarExprAlloc==0 );
- assert( pParse->apVarExpr==0 );
- pParse->zTail = pParse->zSql = zSql;
- while( sqlite3_malloc_failed==0 && zSql[i]!=0 ){
- assert( i>=0 );
- pParse->sLastToken.z = &zSql[i];
- assert( pParse->sLastToken.dyn==0 );
- pParse->sLastToken.n = sqliteGetToken((unsigned char*)&zSql[i], &tokenType);
- i += pParse->sLastToken.n;
- switch( tokenType ){
- case TK_SPACE:
- case TK_COMMENT: {
- if( (db->flags & SQLITE_Interrupt)!=0 ){
- pParse->rc = SQLITE_INTERRUPT;
- sqlite3SetString(pzErrMsg, "interrupt", (char*)0);
- goto abort_parse;
- }
- break;
- }
- case TK_ILLEGAL: {
- if( pzErrMsg ){
- sqliteFree(*pzErrMsg);
- *pzErrMsg = sqlite3MPrintf("unrecognized token: \"%T\"",
- &pParse->sLastToken);
- }
- nErr++;
- goto abort_parse;
- }
- case TK_SEMI: {
- pParse->zTail = &zSql[i];
- /* Fall thru into the default case */
- }
- default: {
- sqlite3Parser(pEngine, tokenType, pParse->sLastToken, pParse);
- lastTokenParsed = tokenType;
- if( pParse->rc!=SQLITE_OK ){
- goto abort_parse;
- }
- break;
- }
- }
- }
-abort_parse:
- if( zSql[i]==0 && nErr==0 && pParse->rc==SQLITE_OK ){
- if( lastTokenParsed!=TK_SEMI ){
- sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse);
- pParse->zTail = &zSql[i];
- }
- sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
- }
- sqlite3ParserFree(pEngine, free);
- if( sqlite3_malloc_failed ){
- pParse->rc = SQLITE_NOMEM;
- }
- if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){
- sqlite3SetString(&pParse->zErrMsg, sqlite3ErrStr(pParse->rc),
- (char*)0);
- }
- if( pParse->zErrMsg ){
- if( pzErrMsg && *pzErrMsg==0 ){
- *pzErrMsg = pParse->zErrMsg;
- }else{
- sqliteFree(pParse->zErrMsg);
- }
- pParse->zErrMsg = 0;
- if( !nErr ) nErr++;
- }
- if( pParse->pVdbe && pParse->nErr>0 ){
- sqlite3VdbeDelete(pParse->pVdbe);
- pParse->pVdbe = 0;
- }
- sqlite3DeleteTable(pParse->db, pParse->pNewTable);
- sqlite3DeleteTrigger(pParse->pNewTrigger);
- sqliteFree(pParse->apVarExpr);
- if( nErr>0 && (pParse->rc==SQLITE_OK || pParse->rc==SQLITE_DONE) ){
- pParse->rc = SQLITE_ERROR;
- }
- return nErr;
-}
-
-/*
-** Token types used by the sqlite3_complete() routine. See the header
-** comments on that procedure for additional information.
-*/
-#define tkEXPLAIN 0
-#define tkCREATE 1
-#define tkTEMP 2
-#define tkTRIGGER 3
-#define tkEND 4
-#define tkSEMI 5
-#define tkWS 6
-#define tkOTHER 7
-
-/*
-** Return TRUE if the given SQL string ends in a semicolon.
-**
-** Special handling is require for CREATE TRIGGER statements.
-** Whenever the CREATE TRIGGER keywords are seen, the statement
-** must end with ";END;".
-**
-** This implementation uses a state machine with 7 states:
-**
-** (0) START At the beginning or end of an SQL statement. This routine
-** returns 1 if it ends in the START state and 0 if it ends
-** in any other state.
-**
-** (1) EXPLAIN The keyword EXPLAIN has been seen at the beginning of
-** a statement.
-**
-** (2) CREATE The keyword CREATE has been seen at the beginning of a
-** statement, possibly preceeded by EXPLAIN and/or followed by
-** TEMP or TEMPORARY
-**
-** (3) NORMAL We are in the middle of statement which ends with a single
-** semicolon.
-**
-** (4) TRIGGER We are in the middle of a trigger definition that must be
-** ended by a semicolon, the keyword END, and another semicolon.
-**
-** (5) SEMI We've seen the first semicolon in the ";END;" that occurs at
-** the end of a trigger definition.
-**
-** (6) END We've seen the ";END" of the ";END;" that occurs at the end
-** of a trigger difinition.
-**
-** Transitions between states above are determined by tokens extracted
-** from the input. The following tokens are significant:
-**
-** (0) tkEXPLAIN The "explain" keyword.
-** (1) tkCREATE The "create" keyword.
-** (2) tkTEMP The "temp" or "temporary" keyword.
-** (3) tkTRIGGER The "trigger" keyword.
-** (4) tkEND The "end" keyword.
-** (5) tkSEMI A semicolon.
-** (6) tkWS Whitespace
-** (7) tkOTHER Any other SQL token.
-**
-** Whitespace never causes a state transition and is always ignored.
-*/
-int sqlite3_complete(const char *zSql){
- u8 state = 0; /* Current state, using numbers defined in header comment */
- u8 token; /* Value of the next token */
-
- /* The following matrix defines the transition from one state to another
- ** according to what token is seen. trans[state][token] returns the
- ** next state.
- */
- static const u8 trans[7][8] = {
- /* Token: */
- /* State: ** EXPLAIN CREATE TEMP TRIGGER END SEMI WS OTHER */
- /* 0 START: */ { 1, 2, 3, 3, 3, 0, 0, 3, },
- /* 1 EXPLAIN: */ { 3, 2, 3, 3, 3, 0, 1, 3, },
- /* 2 CREATE: */ { 3, 3, 2, 4, 3, 0, 2, 3, },
- /* 3 NORMAL: */ { 3, 3, 3, 3, 3, 0, 3, 3, },
- /* 4 TRIGGER: */ { 4, 4, 4, 4, 4, 5, 4, 4, },
- /* 5 SEMI: */ { 4, 4, 4, 4, 6, 5, 5, 4, },
- /* 6 END: */ { 4, 4, 4, 4, 4, 0, 6, 4, },
- };
-
- while( *zSql ){
- switch( *zSql ){
- case ';': { /* A semicolon */
- token = tkSEMI;
- break;
- }
- case ' ':
- case '\r':
- case '\t':
- case '\n':
- case '\f': { /* White space is ignored */
- token = tkWS;
- break;
- }
- case '/': { /* C-style comments */
- if( zSql[1]!='*' ){
- token = tkOTHER;
- break;
- }
- zSql += 2;
- while( zSql[0] && (zSql[0]!='*' || zSql[1]!='/') ){ zSql++; }
- if( zSql[0]==0 ) return 0;
- zSql++;
- token = tkWS;
- break;
- }
- case '-': { /* SQL-style comments from "--" to end of line */
- if( zSql[1]!='-' ){
- token = tkOTHER;
- break;
- }
- while( *zSql && *zSql!='\n' ){ zSql++; }
- if( *zSql==0 ) return state==0;
- token = tkWS;
- break;
- }
- case '[': { /* Microsoft-style identifiers in [...] */
- zSql++;
- while( *zSql && *zSql!=']' ){ zSql++; }
- if( *zSql==0 ) return 0;
- token = tkOTHER;
- break;
- }
- case '"': /* single- and double-quoted strings */
- case '\'': {
- int c = *zSql;
- zSql++;
- while( *zSql && *zSql!=c ){ zSql++; }
- if( *zSql==0 ) return 0;
- token = tkOTHER;
- break;
- }
- default: {
- int c;
- if( IdChar((u8)*zSql) ){
- /* Keywords and unquoted identifiers */
- int nId;
- for(nId=1; IdChar(zSql[nId]); nId++){}
- switch( *zSql ){
- case 'c': case 'C': {
- if( nId==6 && sqlite3StrNICmp(zSql, "create", 6)==0 ){
- token = tkCREATE;
- }else{
- token = tkOTHER;
- }
- break;
- }
- case 't': case 'T': {
- if( nId==7 && sqlite3StrNICmp(zSql, "trigger", 7)==0 ){
- token = tkTRIGGER;
- }else if( nId==4 && sqlite3StrNICmp(zSql, "temp", 4)==0 ){
- token = tkTEMP;
- }else if( nId==9 && sqlite3StrNICmp(zSql, "temporary", 9)==0 ){
- token = tkTEMP;
- }else{
- token = tkOTHER;
- }
- break;
- }
- case 'e': case 'E': {
- if( nId==3 && sqlite3StrNICmp(zSql, "end", 3)==0 ){
- token = tkEND;
- }else if( nId==7 && sqlite3StrNICmp(zSql, "explain", 7)==0 ){
- token = tkEXPLAIN;
- }else{
- token = tkOTHER;
- }
- break;
- }
- default: {
- token = tkOTHER;
- break;
- }
- }
- zSql += nId-1;
- }else{
- /* Operators and special symbols */
- token = tkOTHER;
- }
- break;
- }
- }
- state = trans[state][token];
- zSql++;
- }
- return state==0;
-}
-
-/*
-** This routine is the same as the sqlite3_complete() routine described
-** above, except that the parameter is required to be UTF-16 encoded, not
-** UTF-8.
-*/
-int sqlite3_complete16(const void *zSql){
- sqlite3_value *pVal;
- char const *zSql8;
- int rc = 0;
-
- pVal = sqlite3ValueNew();
- sqlite3ValueSetStr(pVal, -1, zSql, SQLITE_UTF16NATIVE, SQLITE_STATIC);
- zSql8 = sqlite3ValueText(pVal, SQLITE_UTF8);
- if( zSql8 ){
- rc = sqlite3_complete(zSql8);
- }
- sqlite3ValueFree(pVal);
- return rc;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-19 22:55:25 +0000