490 lines
12 KiB
C++
490 lines
12 KiB
C++
|
/*
|
||
|
|
see copyright notice in squirrel.h
|
||
|
|
*/
|
||
|
|
#include "sqpcheader.h"
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include "sqtable.h"
|
||
|
|
#include "sqstring.h"
|
||
|
|
#include "sqcompiler.h"
|
||
|
|
#include "sqlexer.h"
|
||
|
|
|
||
|
|
#define CUR_CHAR (_currdata)
|
||
|
|
#define RETURN_TOKEN(t) { _prevtoken = _curtoken; _curtoken = t; return t;}
|
||
|
|
#define IS_EOB() (CUR_CHAR <= SQUIRREL_EOB)
|
||
|
|
#define NEXT() {Next();_currentcolumn++;}
|
||
|
|
#define INIT_TEMP_STRING() { _longstr.resize(0);}
|
||
|
|
#define APPEND_CHAR(c) { _longstr.push_back(c);}
|
||
|
|
#define TERMINATE_BUFFER() {_longstr.push_back(_SC('\0'));}
|
||
|
|
#define ADD_KEYWORD(key,id) _keywords->NewSlot( SQString::Create(ss, _SC(#key)) ,SQInteger(id))
|
||
|
|
|
||
|
|
SQLexer::SQLexer(){}
|
||
|
|
SQLexer::~SQLexer()
|
||
|
|
{
|
||
|
|
_keywords->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
void SQLexer::Init(SQSharedState *ss, SQLEXREADFUNC rg, SQUserPointer up,CompilerErrorFunc efunc,void *ed)
|
||
|
|
{
|
||
|
|
_errfunc = efunc;
|
||
|
|
_errtarget = ed;
|
||
|
|
_sharedstate = ss;
|
||
|
|
_keywords = SQTable::Create(ss, 26);
|
||
|
|
ADD_KEYWORD(while, TK_WHILE);
|
||
|
|
ADD_KEYWORD(do, TK_DO);
|
||
|
|
ADD_KEYWORD(if, TK_IF);
|
||
|
|
ADD_KEYWORD(else, TK_ELSE);
|
||
|
|
ADD_KEYWORD(break, TK_BREAK);
|
||
|
|
ADD_KEYWORD(continue, TK_CONTINUE);
|
||
|
|
ADD_KEYWORD(return, TK_RETURN);
|
||
|
|
ADD_KEYWORD(null, TK_NULL);
|
||
|
|
ADD_KEYWORD(function, TK_FUNCTION);
|
||
|
|
ADD_KEYWORD(local, TK_LOCAL);
|
||
|
|
ADD_KEYWORD(for, TK_FOR);
|
||
|
|
ADD_KEYWORD(foreach, TK_FOREACH);
|
||
|
|
ADD_KEYWORD(in, TK_IN);
|
||
|
|
ADD_KEYWORD(typeof, TK_TYPEOF);
|
||
|
|
ADD_KEYWORD(base, TK_BASE);
|
||
|
|
ADD_KEYWORD(delete, TK_DELETE);
|
||
|
|
ADD_KEYWORD(try, TK_TRY);
|
||
|
|
ADD_KEYWORD(catch, TK_CATCH);
|
||
|
|
ADD_KEYWORD(throw, TK_THROW);
|
||
|
|
ADD_KEYWORD(clone, TK_CLONE);
|
||
|
|
ADD_KEYWORD(yield, TK_YIELD);
|
||
|
|
ADD_KEYWORD(resume, TK_RESUME);
|
||
|
|
ADD_KEYWORD(switch, TK_SWITCH);
|
||
|
|
ADD_KEYWORD(case, TK_CASE);
|
||
|
|
ADD_KEYWORD(default, TK_DEFAULT);
|
||
|
|
ADD_KEYWORD(this, TK_THIS);
|
||
|
|
ADD_KEYWORD(class,TK_CLASS);
|
||
|
|
ADD_KEYWORD(extends,TK_EXTENDS);
|
||
|
|
ADD_KEYWORD(constructor,TK_CONSTRUCTOR);
|
||
|
|
ADD_KEYWORD(instanceof,TK_INSTANCEOF);
|
||
|
|
ADD_KEYWORD(true,TK_TRUE);
|
||
|
|
ADD_KEYWORD(false,TK_FALSE);
|
||
|
|
ADD_KEYWORD(static,TK_STATIC);
|
||
|
|
ADD_KEYWORD(enum,TK_ENUM);
|
||
|
|
ADD_KEYWORD(const,TK_CONST);
|
||
|
|
|
||
|
|
_readf = rg;
|
||
|
|
_up = up;
|
||
|
|
_lasttokenline = _currentline = 1;
|
||
|
|
_currentcolumn = 0;
|
||
|
|
_prevtoken = -1;
|
||
|
|
_reached_eof = SQFalse;
|
||
|
|
Next();
|
||
|
|
}
|
||
|
|
|
||
|
|
void SQLexer::Error(const SQChar *err)
|
||
|
|
{
|
||
|
|
_errfunc(_errtarget,err);
|
||
|
|
}
|
||
|
|
|
||
|
|
void SQLexer::Next()
|
||
|
|
{
|
||
|
|
SQInteger t = _readf(_up);
|
||
|
|
if(t > MAX_CHAR) Error(_SC("Invalid character"));
|
||
|
|
if(t != 0) {
|
||
|
|
_currdata = (LexChar)t;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
_currdata = SQUIRREL_EOB;
|
||
|
|
_reached_eof = SQTrue;
|
||
|
|
}
|
||
|
|
|
||
|
|
const SQChar *SQLexer::Tok2Str(SQInteger tok)
|
||
|
|
{
|
||
|
|
SQObjectPtr itr, key, val;
|
||
|
|
SQInteger nitr;
|
||
|
|
while((nitr = _keywords->Next(false,itr, key, val)) != -1) {
|
||
|
|
itr = (SQInteger)nitr;
|
||
|
|
if(((SQInteger)_integer(val)) == tok)
|
||
|
|
return _stringval(key);
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void SQLexer::LexBlockComment()
|
||
|
|
{
|
||
|
|
bool done = false;
|
||
|
|
while(!done) {
|
||
|
|
switch(CUR_CHAR) {
|
||
|
|
case _SC('*'): { NEXT(); if(CUR_CHAR == _SC('/')) { done = true; NEXT(); }}; continue;
|
||
|
|
case _SC('\n'): _currentline++; NEXT(); continue;
|
||
|
|
case SQUIRREL_EOB: Error(_SC("missing \"*/\" in comment"));
|
||
|
|
default: NEXT();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void SQLexer::LexLineComment()
|
||
|
|
{
|
||
|
|
do { NEXT(); } while (CUR_CHAR != _SC('\n') && (!IS_EOB()));
|
||
|
|
}
|
||
|
|
|
||
|
|
SQInteger SQLexer::Lex()
|
||
|
|
{
|
||
|
|
_lasttokenline = _currentline;
|
||
|
|
while(CUR_CHAR != SQUIRREL_EOB) {
|
||
|
|
switch(CUR_CHAR){
|
||
|
|
case _SC('\t'): case _SC('\r'): case _SC(' '): NEXT(); continue;
|
||
|
|
case _SC('\n'):
|
||
|
|
_currentline++;
|
||
|
|
_prevtoken=_curtoken;
|
||
|
|
_curtoken=_SC('\n');
|
||
|
|
NEXT();
|
||
|
|
_currentcolumn=1;
|
||
|
|
continue;
|
||
|
|
case _SC('#'): LexLineComment(); continue;
|
||
|
|
case _SC('/'):
|
||
|
|
NEXT();
|
||
|
|
switch(CUR_CHAR){
|
||
|
|
case _SC('*'):
|
||
|
|
NEXT();
|
||
|
|
LexBlockComment();
|
||
|
|
continue;
|
||
|
|
case _SC('/'):
|
||
|
|
LexLineComment();
|
||
|
|
continue;
|
||
|
|
case _SC('='):
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(TK_DIVEQ);
|
||
|
|
continue;
|
||
|
|
case _SC('>'):
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(TK_ATTR_CLOSE);
|
||
|
|
continue;
|
||
|
|
default:
|
||
|
|
RETURN_TOKEN('/');
|
||
|
|
}
|
||
|
|
case _SC('='):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('=')){ RETURN_TOKEN('=') }
|
||
|
|
else { NEXT(); RETURN_TOKEN(TK_EQ); }
|
||
|
|
case _SC('<'):
|
||
|
|
NEXT();
|
||
|
|
switch(CUR_CHAR) {
|
||
|
|
case _SC('='):
|
||
|
|
NEXT();
|
||
|
|
if(CUR_CHAR == _SC('>')) {
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(TK_3WAYSCMP);
|
||
|
|
}
|
||
|
|
RETURN_TOKEN(TK_LE)
|
||
|
|
break;
|
||
|
|
case _SC('-'): NEXT(); RETURN_TOKEN(TK_NEWSLOT); break;
|
||
|
|
case _SC('<'): NEXT(); RETURN_TOKEN(TK_SHIFTL); break;
|
||
|
|
case _SC('/'): NEXT(); RETURN_TOKEN(TK_ATTR_OPEN); break;
|
||
|
|
}
|
||
|
|
RETURN_TOKEN('<');
|
||
|
|
case _SC('>'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_GE);}
|
||
|
|
else if(CUR_CHAR == _SC('>')){
|
||
|
|
NEXT();
|
||
|
|
if(CUR_CHAR == _SC('>')){
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(TK_USHIFTR);
|
||
|
|
}
|
||
|
|
RETURN_TOKEN(TK_SHIFTR);
|
||
|
|
}
|
||
|
|
else { RETURN_TOKEN('>') }
|
||
|
|
case _SC('!'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('=')){ RETURN_TOKEN('!')}
|
||
|
|
else { NEXT(); RETURN_TOKEN(TK_NE); }
|
||
|
|
case _SC('@'): {
|
||
|
|
SQInteger stype;
|
||
|
|
NEXT();
|
||
|
|
if(CUR_CHAR != _SC('"')) {
|
||
|
|
RETURN_TOKEN('@');
|
||
|
|
}
|
||
|
|
if((stype=ReadString('"',true))!=-1) {
|
||
|
|
RETURN_TOKEN(stype);
|
||
|
|
}
|
||
|
|
Error(_SC("error parsing the string"));
|
||
|
|
}
|
||
|
|
case _SC('"'):
|
||
|
|
case _SC('\''): {
|
||
|
|
SQInteger stype;
|
||
|
|
if((stype=ReadString(CUR_CHAR,false))!=-1){
|
||
|
|
RETURN_TOKEN(stype);
|
||
|
|
}
|
||
|
|
Error(_SC("error parsing the string"));
|
||
|
|
}
|
||
|
|
case _SC('{'): case _SC('}'): case _SC('('): case _SC(')'): case _SC('['): case _SC(']'):
|
||
|
|
case _SC(';'): case _SC(','): case _SC('?'): case _SC('^'): case _SC('~'):
|
||
|
|
{SQInteger ret = CUR_CHAR;
|
||
|
|
NEXT(); RETURN_TOKEN(ret); }
|
||
|
|
case _SC('.'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('.')){ RETURN_TOKEN('.') }
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('.')){ Error(_SC("invalid token '..'")); }
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(TK_VARPARAMS);
|
||
|
|
case _SC('&'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('&')){ RETURN_TOKEN('&') }
|
||
|
|
else { NEXT(); RETURN_TOKEN(TK_AND); }
|
||
|
|
case _SC('|'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC('|')){ RETURN_TOKEN('|') }
|
||
|
|
else { NEXT(); RETURN_TOKEN(TK_OR); }
|
||
|
|
case _SC(':'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR != _SC(':')){ RETURN_TOKEN(':') }
|
||
|
|
else { NEXT(); RETURN_TOKEN(TK_DOUBLE_COLON); }
|
||
|
|
case _SC('*'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MULEQ);}
|
||
|
|
else RETURN_TOKEN('*');
|
||
|
|
case _SC('%'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MODEQ);}
|
||
|
|
else RETURN_TOKEN('%');
|
||
|
|
case _SC('-'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_MINUSEQ);}
|
||
|
|
else if (CUR_CHAR == _SC('-')){ NEXT(); RETURN_TOKEN(TK_MINUSMINUS);}
|
||
|
|
else RETURN_TOKEN('-');
|
||
|
|
case _SC('+'):
|
||
|
|
NEXT();
|
||
|
|
if (CUR_CHAR == _SC('=')){ NEXT(); RETURN_TOKEN(TK_PLUSEQ);}
|
||
|
|
else if (CUR_CHAR == _SC('+')){ NEXT(); RETURN_TOKEN(TK_PLUSPLUS);}
|
||
|
|
else RETURN_TOKEN('+');
|
||
|
|
case SQUIRREL_EOB:
|
||
|
|
return 0;
|
||
|
|
default:{
|
||
|
|
if (scisdigit(CUR_CHAR)) {
|
||
|
|
SQInteger ret = ReadNumber();
|
||
|
|
RETURN_TOKEN(ret);
|
||
|
|
}
|
||
|
|
else if (scisalpha(CUR_CHAR) || CUR_CHAR == _SC('_')) {
|
||
|
|
SQInteger t = ReadID();
|
||
|
|
RETURN_TOKEN(t);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
SQInteger c = CUR_CHAR;
|
||
|
|
if (sciscntrl((int)c)) Error(_SC("unexpected character(control)"));
|
||
|
|
NEXT();
|
||
|
|
RETURN_TOKEN(c);
|
||
|
|
}
|
||
|
|
RETURN_TOKEN(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
SQInteger SQLexer::GetIDType(SQChar *s)
|
||
|
|
{
|
||
|
|
SQObjectPtr t;
|
||
|
|
if(_keywords->Get(SQString::Create(_sharedstate, s), t)) {
|
||
|
|
return SQInteger(_integer(t));
|
||
|
|
}
|
||
|
|
return TK_IDENTIFIER;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
SQInteger SQLexer::ReadString(SQInteger ndelim,bool verbatim)
|
||
|
|
{
|
||
|
|
INIT_TEMP_STRING();
|
||
|
|
NEXT();
|
||
|
|
if(IS_EOB()) return -1;
|
||
|
|
for(;;) {
|
||
|
|
while(CUR_CHAR != ndelim) {
|
||
|
|
switch(CUR_CHAR) {
|
||
|
|
case SQUIRREL_EOB:
|
||
|
|
Error(_SC("unfinished string"));
|
||
|
|
return -1;
|
||
|
|
case _SC('\n'):
|
||
|
|
if(!verbatim) Error(_SC("newline in a constant"));
|
||
|
|
APPEND_CHAR(CUR_CHAR); NEXT();
|
||
|
|
_currentline++;
|
||
|
|
break;
|
||
|
|
case _SC('\\'):
|
||
|
|
if(verbatim) {
|
||
|
|
APPEND_CHAR('\\'); NEXT();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
NEXT();
|
||
|
|
switch(CUR_CHAR) {
|
||
|
|
case _SC('x'): NEXT(); {
|
||
|
|
if(!isxdigit(CUR_CHAR)) Error(_SC("hexadecimal number expected"));
|
||
|
|
const SQInteger maxdigits = 4;
|
||
|
|
SQChar temp[maxdigits+1];
|
||
|
|
SQInteger n = 0;
|
||
|
|
while(isxdigit(CUR_CHAR) && n < maxdigits) {
|
||
|
|
temp[n] = CUR_CHAR;
|
||
|
|
n++;
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
temp[n] = 0;
|
||
|
|
SQChar *sTemp;
|
||
|
|
APPEND_CHAR((SQChar)scstrtoul(temp,&sTemp,16));
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case _SC('t'): APPEND_CHAR(_SC('\t')); NEXT(); break;
|
||
|
|
case _SC('a'): APPEND_CHAR(_SC('\a')); NEXT(); break;
|
||
|
|
case _SC('b'): APPEND_CHAR(_SC('\b')); NEXT(); break;
|
||
|
|
case _SC('n'): APPEND_CHAR(_SC('\n')); NEXT(); break;
|
||
|
|
case _SC('r'): APPEND_CHAR(_SC('\r')); NEXT(); break;
|
||
|
|
case _SC('v'): APPEND_CHAR(_SC('\v')); NEXT(); break;
|
||
|
|
case _SC('f'): APPEND_CHAR(_SC('\f')); NEXT(); break;
|
||
|
|
case _SC('0'): APPEND_CHAR(_SC('\0')); NEXT(); break;
|
||
|
|
case _SC('\\'): APPEND_CHAR(_SC('\\')); NEXT(); break;
|
||
|
|
case _SC('"'): APPEND_CHAR(_SC('"')); NEXT(); break;
|
||
|
|
case _SC('\''): APPEND_CHAR(_SC('\'')); NEXT(); break;
|
||
|
|
default:
|
||
|
|
Error(_SC("unrecognised escaper char"));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
NEXT();
|
||
|
|
if(verbatim && CUR_CHAR == '"') { //double quotation
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
TERMINATE_BUFFER();
|
||
|
|
SQInteger len = _longstr.size()-1;
|
||
|
|
if(ndelim == _SC('\'')) {
|
||
|
|
if(len == 0) Error(_SC("empty constant"));
|
||
|
|
if(len > 1) Error(_SC("constant too long"));
|
||
|
|
_nvalue = _longstr[0];
|
||
|
|
return TK_INTEGER;
|
||
|
|
}
|
||
|
|
_svalue = &_longstr[0];
|
||
|
|
return TK_STRING_LITERAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void LexHexadecimal(const SQChar *s,SQUnsignedInteger *res)
|
||
|
|
{
|
||
|
|
*res = 0;
|
||
|
|
while(*s != 0)
|
||
|
|
{
|
||
|
|
if(scisdigit(*s)) *res = (*res)*16+((*s++)-'0');
|
||
|
|
else if(scisxdigit(*s)) *res = (*res)*16+(toupper(*s++)-'A'+10);
|
||
|
|
else { assert(0); }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void LexInteger(const SQChar *s,SQUnsignedInteger *res)
|
||
|
|
{
|
||
|
|
*res = 0;
|
||
|
|
while(*s != 0)
|
||
|
|
{
|
||
|
|
*res = (*res)*10+((*s++)-'0');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SQInteger scisodigit(SQInteger c) { return c >= _SC('0') && c <= _SC('7'); }
|
||
|
|
|
||
|
|
void LexOctal(const SQChar *s,SQUnsignedInteger *res)
|
||
|
|
{
|
||
|
|
*res = 0;
|
||
|
|
while(*s != 0)
|
||
|
|
{
|
||
|
|
if(scisodigit(*s)) *res = (*res)*8+((*s++)-'0');
|
||
|
|
else { assert(0); }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SQInteger isexponent(SQInteger c) { return c == 'e' || c=='E'; }
|
||
|
|
|
||
|
|
|
||
|
|
#define MAX_HEX_DIGITS (sizeof(SQInteger)*2)
|
||
|
|
SQInteger SQLexer::ReadNumber()
|
||
|
|
{
|
||
|
|
#define TINT 1
|
||
|
|
#define TFLOAT 2
|
||
|
|
#define THEX 3
|
||
|
|
#define TSCIENTIFIC 4
|
||
|
|
#define TOCTAL 5
|
||
|
|
SQInteger type = TINT, firstchar = CUR_CHAR;
|
||
|
|
SQChar *sTemp;
|
||
|
|
INIT_TEMP_STRING();
|
||
|
|
NEXT();
|
||
|
|
if(firstchar == _SC('0') && (toupper(CUR_CHAR) == _SC('X') || scisodigit(CUR_CHAR)) ) {
|
||
|
|
if(scisodigit(CUR_CHAR)) {
|
||
|
|
type = TOCTAL;
|
||
|
|
while(scisodigit(CUR_CHAR)) {
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
if(scisdigit(CUR_CHAR)) Error(_SC("invalid octal number"));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
NEXT();
|
||
|
|
type = THEX;
|
||
|
|
while(isxdigit(CUR_CHAR)) {
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
if(_longstr.size() > MAX_HEX_DIGITS) Error(_SC("too many digits for an Hex number"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
APPEND_CHAR((int)firstchar);
|
||
|
|
while (CUR_CHAR == _SC('.') || scisdigit(CUR_CHAR) || isexponent(CUR_CHAR)) {
|
||
|
|
if(CUR_CHAR == _SC('.')) type = TFLOAT;
|
||
|
|
if(isexponent(CUR_CHAR)) {
|
||
|
|
if(type != TFLOAT) Error(_SC("invalid numeric format"));
|
||
|
|
type = TSCIENTIFIC;
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
if(CUR_CHAR == '+' || CUR_CHAR == '-'){
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
if(!scisdigit(CUR_CHAR)) Error(_SC("exponent expected"));
|
||
|
|
}
|
||
|
|
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
TERMINATE_BUFFER();
|
||
|
|
switch(type) {
|
||
|
|
case TSCIENTIFIC:
|
||
|
|
case TFLOAT:
|
||
|
|
_fvalue = (SQFloat)scstrtod(&_longstr[0],&sTemp);
|
||
|
|
return TK_FLOAT;
|
||
|
|
case TINT:
|
||
|
|
LexInteger(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
|
||
|
|
return TK_INTEGER;
|
||
|
|
case THEX:
|
||
|
|
LexHexadecimal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
|
||
|
|
return TK_INTEGER;
|
||
|
|
case TOCTAL:
|
||
|
|
LexOctal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
|
||
|
|
return TK_INTEGER;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
SQInteger SQLexer::ReadID()
|
||
|
|
{
|
||
|
|
SQInteger res;
|
||
|
|
INIT_TEMP_STRING();
|
||
|
|
do {
|
||
|
|
APPEND_CHAR(CUR_CHAR);
|
||
|
|
NEXT();
|
||
|
|
} while(scisalnum(CUR_CHAR) || CUR_CHAR == _SC('_'));
|
||
|
|
TERMINATE_BUFFER();
|
||
|
|
res = GetIDType(&_longstr[0]);
|
||
|
|
if(res == TK_IDENTIFIER || res == TK_CONSTRUCTOR) {
|
||
|
|
_svalue = &_longstr[0];
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
}
|