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#ifndef __EXPRESSION_H__
#define __EXPRESSION_H__
#define LUASL_DEBUG
#include <stddef.h> // So we can have NULL defined.
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "LuaSL_yaccer.tab.h"
#define YYERRCODE 256
#define YYDEBUG 1
extern int yydebug;
// http://w-hat.com/stackdepth is a useful discussion about some aspects of the LL parser.
typedef struct _LSL_Leaf LSL_Leaf;
typedef struct _LSL_Value LSL_Value;
typedef struct _LSL_Identifier LSL_Identifier;
typedef struct _LSL_Statement LSL_Statement;
typedef struct _LSL_Block LSL_Block;
typedef struct _LSL_Function LSL_Function;
typedef struct _LSL_State LSL_State;
typedef struct _LSL_Script LSL_Script;
typedef struct _LSL_AST LSL_AST;
typedef int LSL_Type;
typedef void (*convertToken2Lua) (LSL_Leaf *content);
typedef void (*outputToken) (LSL_Leaf *content);
typedef void (*evaluateToken) (LSL_Leaf *content, LSL_Value *left, LSL_Value *right);
#ifndef FALSE
typedef enum
{
FALSE = 0,
TRUE = 1
} boolean;
#endif
typedef enum
{
LSL_NONE = 0,
LSL_LEFT2RIGHT = 1,
LSL_RIGHT2LEFT = 2,
LSL_INNER2OUTER = 4,
LSL_UNARY = 8,
LSL_ASSIGNMENT = 16,
LSL_CREATION = 32
} LSL_Flags;
typedef struct
{
LSL_Type type;
char *token;
LSL_Flags flags;
outputToken output;
convertToken2Lua convert;
evaluateToken evaluate;
} LSL_Token;
struct _LSL_Leaf
{
union
{
char *commentValue;
char *spaceValue;
LSL_Type operationValue;
LSL_AST *expressionValue;
float floatValue;
int integerValue;
char *keyValue;
LSL_Leaf *listValue;
char *stringValue;
float vectorValue[3];
float rotationValue[4];
LSL_Identifier *variableValue;
char *labelValue;
LSL_Statement *doValue;
LSL_Statement *forValue;
LSL_Statement *elseIfValue;
LSL_Statement *elseValue;
LSL_Statement *ifValue;
char *jumpValue;
LSL_Statement *returnValue;
char *stateChangeValue;
LSL_Statement *whileValue;
LSL_Statement *statementValue;
LSL_Block *blockValue;
LSL_Identifier *parameterValue;
LSL_Function *functionValue;
LSL_State *stateValue;
LSL_Script *scriptValue;
char *unknownValue;
} value;
char *ignorableText;
int line, column;
};
struct _LSL_Value
{
LSL_Leaf content;
LSL_Type type;
};
struct _LSL_Identifier // For variables and function parameters.
{
char *name;
LSL_Value value;
};
struct _LSL_Statement
{
LSL_AST *expression;
LSL_Type type;
};
struct _LSL_Block
{
LSL_Statement *statements;
};
struct _LSL_Function
{
char *name;
LSL_Block block;
LSL_Identifier *parameters;
LSL_Type type;
};
struct _LSL_State
{
char *name;
LSL_Function *handlers;
};
struct _LSL_Script
{
char *name;
LSL_Function *functions;
LSL_State *states;
LSL_Identifier *variables;
};
struct _LSL_AST
{
LSL_AST *left;
LSL_AST *right;
LSL_Token *token;
LSL_Leaf content;
int line;
int character;
};
// define the type for flex and bison
#define YYSTYPE LSL_Leaf
#ifndef excludeLexer
#include "LuaSL_lexer.h"
#endif
typedef struct
{
yyscan_t scanner;
LSL_AST *ast;
} LuaSL_yyparseParam;
// the parameter name (of the reentrant 'yyparse' function)
// data is a pointer to a 'yyparseParam' structure
#define YYPARSE_PARAM data
// the argument for the 'yylex' function
#define YYLEX_PARAM ((LuaSL_yyparseParam*)data)->scanner
LSL_AST *addExpression(LSL_AST *exp);
LSL_AST *addInteger(LSL_Leaf *lval, int value);
LSL_AST *addOperation(LSL_Leaf *lval, LSL_Type type, LSL_AST *left, LSL_AST *right);
LSL_AST *addParenthesis(LSL_Leaf *lval, LSL_AST *expr);
LSL_Statement *createStatement(LSL_Type type, LSL_AST *root);
LSL_AST *addStatement(LSL_Statement *statement, LSL_AST *root);
int yyerror(const char *msg);
int yyparse(void *param);
#endif // __EXPRESSION_H__
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