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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef ARCHETYPE_EXPRESSION
#define ARCHETYPE_EXPRESSION
#include "glk/archetype/keywords.h"
#include "glk/archetype/linked_list.h"
#include "glk/archetype/misc.h"
namespace Glk {
namespace Archetype {
const int OP_LPAREN = NUM_OPERS + 1; // book-keeping operator
const int OP_SEND_TO_TYPE = NUM_OPERS + 2; // for use with interpreter
struct OperNode {
int8 op_name;
union ExprNode *left, *right;
};
struct MessageTextQuoteNode {
int index;
};
struct NumericNode {
int acl_int;
};
struct StrNode {
StringPtr acl_str;
};
struct AttrNode {
NodePtr acl_attr;
};
struct ReservedNode {
int8 keyword;
};
struct IdentNode {
ClassifyType ident_kind;
int ident_int;
};
union ExprNode {
AclType _kind;
OperNode _oper;
NumericNode _numeric;
MessageTextQuoteNode _msgTextQuote;
StrNode _str;
AttrNode _attr;
ReservedNode _reserved;
IdentNode _ident;
};
typedef ExprNode *ExprPtr;
typedef ExprPtr ExprTree;
// Global variables
extern bool Right_Assoc[NUM_OPERS + 1];
extern bool Binary[NUM_OPERS + 1];
extern int8 Precedence[NUM_OPERS + 1];
extern void expression_init();
} // End of namespace Archetype
} // End of namespace Glk
#endif
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