void P_ReadDemoWeaponsChunk(BYTE **demo)
{
int count, i;
PClassWeapon *type;
const char *s;
count = ReadWord(demo);
Weapons_ntoh.Resize(count);
Weapons_hton.Clear(count);
Weapons_ntoh[0] = type = NULL;
Weapons_hton[type] = 0;
for (i = 1; i < count; ++i)
{
s = ReadStringConst(demo);
type = dyn_cast<PClassWeapon>(PClass::FindClass(s));
// If a demo was recorded with a weapon that is no longer present,
// should we report it?
Weapons_ntoh[i] = type;
if (type != NULL)
{
Weapons_hton[type] = i;
}
}
}
boost::shared_ptr< Expr > ReadExpr( std::list< std::string > & tokens ) {
if( tokens.empty( ) ) {
throw SyntaxError( "ReadExpr: unexpected end of token stream" );
} else {
if( tokens.front( ) == "function" ) {
return ReadFuncDecl( tokens );
/*} else if( tokens.front( ) == "assign" ) {
return ReadAssignExpr( tokens );*/
} else if( tokens.front( ) == "if" ) {
return ReadIfExpr( tokens );
} else if( tokens.front( ) == "while" ) {
return ReadWhileExpr( tokens );
/*} else if( tokens.front( ) == "call" ) {
return ReadFuncCall( tokens );*/
} else if( tokens.front( ) == "false" || tokens.front( ) == "true" ) {
return ReadBool( tokens );
} else if( tokens.front( )[ 0 ] >= '0' && tokens.front( )[ 0 ] <= '9' || tokens.front( )[ 0 ] == '-' || tokens.front( )[ 0 ] == '+' ) {
if( tokens.front( ).find( '.' ) == -1 ) {
return ReadInteger( tokens );
} else {
return ReadFloat( tokens );
}
} else if( tokens.front( )[ 0 ] >= 'A' && tokens.front( )[ 0 ] <= 'Z' || tokens.front( )[ 0 ] >= 'a' && tokens.front( )[ 0 ] <= 'z' || tokens.front( )[ 0 ] == '_' ) {
if( tokens.size( ) == 1 ) {
throw SyntaxError( "ReadExpr: unexpected end of stream" );
} else {
std::list< std::string >::iterator nexttoken = tokens.begin( ); ++nexttoken;
if( *nexttoken == "(" ) {
return ReadFuncCall( tokens );
} else if( *nexttoken == "=" ) {
return ReadAssignExpr( tokens );
} else {
return ReadIdent( tokens );
}
}
} else if( tokens.front( )[ 0 ] == '"' ) {
return ReadStringConst( tokens );
} else {
throw SyntaxError( "ReadExpr: unexpected token " + tokens.front( ) );
}
}
}
void NextRawTok (void)
/* Read the next raw token from the input stream */
{
Macro* M;
/* If we've a forced end of assembly, don't read further */
if (ForcedEnd) {
CurTok.Tok = TOK_EOF;
return;
}
Restart:
/* Check if we have tokens from another input source */
if (InputFromStack ()) {
if (CurTok.Tok == TOK_IDENT && (M = FindDefine (&CurTok.SVal)) != 0) {
/* This is a define style macro - expand it */
MacExpandStart (M);
goto Restart;
}
return;
}
Again:
/* Skip whitespace, remember if we had some */
if ((CurTok.WS = IsBlank (C)) != 0) {
do {
NextChar ();
} while (IsBlank (C));
}
/* Mark the file position of the next token */
Source->Func->MarkStart (Source);
/* Clear the string attribute */
SB_Clear (&CurTok.SVal);
/* Generate line info for the current token */
NewAsmLine ();
/* Hex number or PC symbol? */
if (C == '$') {
NextChar ();
/* Hex digit must follow or DollarIsPC must be enabled */
if (!IsXDigit (C)) {
if (DollarIsPC) {
CurTok.Tok = TOK_PC;
return;
} else {
Error ("Hexadecimal digit expected");
}
}
/* Read the number */
CurTok.IVal = 0;
while (1) {
if (UnderlineInNumbers && C == '_') {
while (C == '_') {
NextChar ();
}
if (!IsXDigit (C)) {
Error ("Number may not end with underline");
}
}
if (IsXDigit (C)) {
if (CurTok.IVal & 0xF0000000) {
Error ("Overflow in hexadecimal number");
CurTok.IVal = 0;
}
CurTok.IVal = (CurTok.IVal << 4) + DigitVal (C);
NextChar ();
} else {
break;
}
}
/* This is an integer constant */
CurTok.Tok = TOK_INTCON;
return;
}
/* Binary number? */
if (C == '%') {
NextChar ();
/* 0 or 1 must follow */
if (!IsBDigit (C)) {
Error ("Binary digit expected");
}
/* Read the number */
CurTok.IVal = 0;
while (1) {
if (UnderlineInNumbers && C == '_') {
while (C == '_') {
NextChar ();
}
if (!IsBDigit (C)) {
Error ("Number may not end with underline");
}
}
if (IsBDigit (C)) {
if (CurTok.IVal & 0x80000000) {
Error ("Overflow in binary number");
CurTok.IVal = 0;
}
CurTok.IVal = (CurTok.IVal << 1) + DigitVal (C);
NextChar ();
} else {
break;
}
}
/* This is an integer constant */
CurTok.Tok = TOK_INTCON;
return;
}
/* Number? */
if (IsDigit (C)) {
char Buf[16];
unsigned Digits;
unsigned Base;
unsigned I;
long Max;
unsigned DVal;
/* Ignore leading zeros */
while (C == '0') {
NextChar ();
}
/* Read the number into Buf counting the digits */
Digits = 0;
while (1) {
if (UnderlineInNumbers && C == '_') {
while (C == '_') {
NextChar ();
}
if (!IsXDigit (C)) {
Error ("Number may not end with underline");
}
}
if (IsXDigit (C)) {
/* Buf is big enough to allow any decimal and hex number to
** overflow, so ignore excess digits here, they will be detected
** when we convert the value.
*/
if (Digits < sizeof (Buf)) {
Buf[Digits++] = C;
}
NextChar ();
} else {
break;
}
}
/* Allow zilog/intel style hex numbers with a 'h' suffix */
if (C == 'h' || C == 'H') {
NextChar ();
Base = 16;
Max = 0xFFFFFFFFUL / 16;
} else {
Base = 10;
Max = 0xFFFFFFFFUL / 10;
}
/* Convert the number using the given base */
CurTok.IVal = 0;
for (I = 0; I < Digits; ++I) {
if (CurTok.IVal > Max) {
Error ("Number out of range");
CurTok.IVal = 0;
break;
}
DVal = DigitVal (Buf[I]);
if (DVal >= Base) {
Error ("Invalid digits in number");
CurTok.IVal = 0;
break;
}
CurTok.IVal = (CurTok.IVal * Base) + DVal;
}
/* This is an integer constant */
CurTok.Tok = TOK_INTCON;
return;
}
/* Control command? */
if (C == '.') {
/* Remember and skip the dot */
NextChar ();
/* Check if it's just a dot */
if (!IsIdStart (C)) {
/* Just a dot */
CurTok.Tok = TOK_DOT;
} else {
/* Read the remainder of the identifier */
SB_AppendChar (&CurTok.SVal, '.');
ReadIdent ();
/* Dot keyword, search for it */
CurTok.Tok = FindDotKeyword ();
if (CurTok.Tok == TOK_NONE) {
/* Not found */
if (!LeadingDotInIdents) {
/* Invalid pseudo instruction */
Error ("'%m%p' is not a recognized control command", &CurTok.SVal);
goto Again;
}
/* An identifier with a dot. Check if it's a define style
** macro.
*/
if ((M = FindDefine (&CurTok.SVal)) != 0) {
/* This is a define style macro - expand it */
MacExpandStart (M);
goto Restart;
}
/* Just an identifier with a dot */
CurTok.Tok = TOK_IDENT;
}
}
return;
}
/* Indirect op for sweet16 cpu. Must check this before checking for local
** symbols, because these may also use the '@' symbol.
*/
if (CPU == CPU_SWEET16 && C == '@') {
NextChar ();
CurTok.Tok = TOK_AT;
return;
}
/* Local symbol? */
if (C == LocalStart) {
/* Read the identifier. */
ReadIdent ();
/* Start character alone is not enough */
if (SB_GetLen (&CurTok.SVal) == 1) {
Error ("Invalid cheap local symbol");
goto Again;
}
/* A local identifier */
CurTok.Tok = TOK_LOCAL_IDENT;
return;
}
/* Identifier or keyword? */
if (IsIdStart (C)) {
/* Read the identifier */
ReadIdent ();
/* Check for special names. Bail out if we have identified the type of
** the token. Go on if the token is an identifier.
*/
switch (SB_GetLen (&CurTok.SVal)) {
case 1:
switch (toupper (SB_AtUnchecked (&CurTok.SVal, 0))) {
case 'A':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_ABS;
} else {
CurTok.Tok = TOK_A;
}
return;
case 'F':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_FAR;
return;
}
break;
case 'S':
if ((CPU == CPU_4510) || (CPU == CPU_65816)) {
CurTok.Tok = TOK_S;
return;
}
break;
case 'X':
CurTok.Tok = TOK_X;
return;
case 'Y':
CurTok.Tok = TOK_Y;
return;
case 'Z':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_ZP;
return;
} else {
if (CPU == CPU_4510) {
CurTok.Tok = TOK_Z;
return;
}
}
break;
default:
break;
}
break;
case 2:
if ((CPU == CPU_4510) &&
(toupper (SB_AtUnchecked (&CurTok.SVal, 0)) == 'S') &&
(toupper (SB_AtUnchecked (&CurTok.SVal, 1)) == 'P')) {
CurTok.Tok = TOK_S;
return;
}
/* FALL THROUGH */
default:
if (CPU == CPU_SWEET16 &&
(CurTok.IVal = Sweet16Reg (&CurTok.SVal)) >= 0) {
/* A sweet16 register number in sweet16 mode */
CurTok.Tok = TOK_REG;
return;
}
}
/* Check for define style macro */
if ((M = FindDefine (&CurTok.SVal)) != 0) {
/* Macro - expand it */
MacExpandStart (M);
goto Restart;
} else {
/* An identifier */
CurTok.Tok = TOK_IDENT;
}
return;
}
/* Ok, let's do the switch */
CharAgain:
switch (C) {
case '+':
NextChar ();
CurTok.Tok = TOK_PLUS;
return;
case '-':
NextChar ();
CurTok.Tok = TOK_MINUS;
return;
case '/':
NextChar ();
if (C != '*') {
CurTok.Tok = TOK_DIV;
} else if (CComments) {
/* Remember the position, then skip the '*' */
Collection LineInfos = STATIC_COLLECTION_INITIALIZER;
GetFullLineInfo (&LineInfos);
NextChar ();
do {
while (C != '*') {
if (C == EOF) {
LIError (&LineInfos, "Unterminated comment");
ReleaseFullLineInfo (&LineInfos);
DoneCollection (&LineInfos);
goto CharAgain;
}
NextChar ();
}
NextChar ();
} while (C != '/');
NextChar ();
ReleaseFullLineInfo (&LineInfos);
DoneCollection (&LineInfos);
goto Again;
}
return;
case '*':
NextChar ();
CurTok.Tok = TOK_MUL;
return;
case '^':
NextChar ();
CurTok.Tok = TOK_XOR;
return;
case '&':
NextChar ();
if (C == '&') {
NextChar ();
CurTok.Tok = TOK_BOOLAND;
} else {
CurTok.Tok = TOK_AND;
}
return;
case '|':
NextChar ();
if (C == '|') {
NextChar ();
CurTok.Tok = TOK_BOOLOR;
} else {
CurTok.Tok = TOK_OR;
}
return;
case ':':
NextChar ();
switch (C) {
case ':':
NextChar ();
CurTok.Tok = TOK_NAMESPACE;
break;
case '-':
CurTok.IVal = 0;
do {
--CurTok.IVal;
NextChar ();
} while (C == '-');
CurTok.Tok = TOK_ULABEL;
break;
case '+':
CurTok.IVal = 0;
do {
++CurTok.IVal;
NextChar ();
} while (C == '+');
CurTok.Tok = TOK_ULABEL;
break;
case '=':
NextChar ();
CurTok.Tok = TOK_ASSIGN;
break;
default:
CurTok.Tok = TOK_COLON;
break;
}
return;
case ',':
NextChar ();
CurTok.Tok = TOK_COMMA;
return;
case ';':
NextChar ();
while (C != '\n' && C != EOF) {
NextChar ();
}
goto CharAgain;
case '#':
NextChar ();
CurTok.Tok = TOK_HASH;
return;
case '(':
NextChar ();
CurTok.Tok = TOK_LPAREN;
return;
case ')':
NextChar ();
CurTok.Tok = TOK_RPAREN;
return;
case '[':
NextChar ();
CurTok.Tok = TOK_LBRACK;
return;
case ']':
NextChar ();
CurTok.Tok = TOK_RBRACK;
return;
case '{':
NextChar ();
CurTok.Tok = TOK_LCURLY;
return;
case '}':
NextChar ();
CurTok.Tok = TOK_RCURLY;
return;
case '<':
NextChar ();
if (C == '=') {
NextChar ();
CurTok.Tok = TOK_LE;
} else if (C == '<') {
NextChar ();
CurTok.Tok = TOK_SHL;
} else if (C == '>') {
NextChar ();
CurTok.Tok = TOK_NE;
} else {
CurTok.Tok = TOK_LT;
}
return;
case '=':
NextChar ();
CurTok.Tok = TOK_EQ;
return;
case '!':
NextChar ();
CurTok.Tok = TOK_BOOLNOT;
return;
case '>':
NextChar ();
if (C == '=') {
NextChar ();
CurTok.Tok = TOK_GE;
} else if (C == '>') {
NextChar ();
CurTok.Tok = TOK_SHR;
} else {
CurTok.Tok = TOK_GT;
}
return;
case '~':
NextChar ();
CurTok.Tok = TOK_NOT;
return;
case '\'':
/* Hack: If we allow ' as terminating character for strings, read
** the following stuff as a string, and check for a one character
** string later.
*/
if (LooseStringTerm) {
ReadStringConst ('\'');
if (SB_GetLen (&CurTok.SVal) == 1) {
CurTok.IVal = SB_AtUnchecked (&CurTok.SVal, 0);
CurTok.Tok = TOK_CHARCON;
} else {
CurTok.Tok = TOK_STRCON;
}
} else {
/* Always a character constant */
NextChar ();
if (C == EOF || IsControl (C)) {
Error ("Illegal character constant");
goto CharAgain;
}
CurTok.IVal = C;
CurTok.Tok = TOK_CHARCON;
NextChar ();
if (C != '\'') {
if (!MissingCharTerm) {
Error ("Illegal character constant");
}
} else {
NextChar ();
}
}
return;
case '\"':
ReadStringConst ('\"');
CurTok.Tok = TOK_STRCON;
return;
case '\\':
/* Line continuation? */
if (LineCont) {
NextChar ();
/* Next char should be a LF, if not, will result in an error later */
if (C == '\n') {
/* Ignore the '\n' */
NextChar ();
goto Again;
} else {
/* Make it clear what the problem is: */
Error ("EOL expected.");
}
}
break;
case '\n':
NextChar ();
CurTok.Tok = TOK_SEP;
return;
case EOF:
CheckInputStack ();
/* In case of the main file, do not close it, but return EOF. */
if (Source && Source->Next) {
DoneCharSource ();
goto Again;
} else {
CurTok.Tok = TOK_EOF;
}
return;
}
/* If we go here, we could not identify the current character. Skip it
** and try again.
*/
Error ("Invalid input character: 0x%02X", C & 0xFF);
NextChar ();
goto Again;
}
Token Scanner::GetNextToken()
{
TokenType T;
string str;
State st;
char c;
if (!SkipSpaces(file, xy, pos))
throw Error("unclosed comment", pos.first, pos.second);
pos = xy;
c = GetSymb(file, xy);
st = GetState(c);
switch (st){
case is_letter :
{
str = str + c;
T = ReadIdentifier(file, str, xy);
map<string, TokenType>::const_iterator it = SpecSymb.begin();
it = SpecSymb.find(str);
if (it != SpecSymb.end())
T = (*it).second;
}
break;
case is_emphasize:
str = str + c;
T = ReadIdentifier(file, str, xy);
break;
case is_digit:
str = str + c;
T = ReadDecNumber(file, str, xy);
break;
case is_dollar:
str = str + c;
T = ReadHexNumber(file, str, xy);
break;
case is_ampersand:
str = str + c;
T = ReadOctNumber(file, str, xy);
break;
case is_quote:
str = str + c;
T = ReadStringConst(file, str ,xy);
break;
case is_sharp:
str = str + c;
T = ReadStringConst(file, str ,xy);
break;
case is_figure_bracket:
while (c != '}')
{
c = GetSymb(file, xy);
if (c == EOF)
throw Error("unclosed comment", pos.first, pos.second);
}
break;
case is_point:
str = str + c;
T = separator;
if (file.peek() == '.')
str = str + GetSymb(file, xy);
break;
case is_colon:
str = str + c;
T = separator;
if (file.peek() == '=')
{
str = str + GetSymb(file, xy);
T = operation;
}
break;
case is_more:
str = str + c;
T = operation;
if (file.peek() == '=')
str = str + GetSymb(file, xy);
break;
case is_less:
str = str + c;
T = operation;
if (file.peek() == '>' || file.peek() == '=')
str = str + GetSymb(file, xy);
break;
case is_end_of_file:
T = end_of_file;
str = "EOF";
break;
default:
str = str + c;
map<string, TokenType>::const_iterator it = SpecSymb.begin();
it = SpecSymb.find(str);
if (it != SpecSymb.end())
T = (*it).second;
else
throw Error("syntax error", pos.first, pos.second);
}
return Token(str, T, pos);
}