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137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
#ifndef _token_h_
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#define _token_h_
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#include <stdio.h>
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#include "common.h"
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/* Current file stuff. */
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#define MAX_INCLUDE_DEPTH 32
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#define MAX_FILENAME_LENGTH 248
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#define MAX_TOKEN_SIZE 1024
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typedef struct {
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FILE *fp;
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unsigned long lineno;
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char filename[MAX_FILENAME_LENGTH];
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} InputFile;
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/* Token stuff. */
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typedef enum {
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TOK_FALSE, TOK_TRUE,
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TOK_IF, TOK_SWITCH, TOK_DEFAULT,
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TOK_AND, TOK_OR, TOK_XOR, TOK_NOT,
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TOK_EQUAL, TOK_NOT_EQUAL, TOK_GREATER_THAN, TOK_LESS_THAN,
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TOK_GREATER_OR_EQUAL, TOK_LESS_OR_EQUAL,
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TOK_DOLLAR_DATA_REGISTER,
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TOK_DOLLAR_ADDRESS_REGISTER,
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TOK_DOLLAR_GENERAL_REGISTER,
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TOK_DOLLAR_AMODE,
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TOK_DOLLAR_REVERSED_AMODE, /* Used in move; reg/mode order reversed. */
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TOK_DOLLAR_NUMBER,
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TOK_DOLLAR_AMODE_PTR, TOK_DOLLAR_REVERSED_AMODE_PTR,
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TOK_AMODE, TOK_REVERSED_AMODE,
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TOK_AMODE_PTR, TOK_REVERSED_AMODE_PTR,
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TOK_IDENTIFIER,
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TOK_QUOTED_STRING,
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TOK_NUMBER,
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TOK_LEFT_PAREN, TOK_RIGHT_PAREN,
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TOK_DATA_REGISTER, TOK_ADDRESS_REGISTER, TOK_TEMP_REGISTER,
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TOK_NOP,
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TOK_UNION, TOK_INTERSECT,
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TOK_CCC, TOK_CCN, TOK_CCV, TOK_CCX, TOK_CCNZ,
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TOK_SHIFT_LEFT, TOK_SHIFT_RIGHT,
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TOK_ASSIGN,
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TOK_PLUS, TOK_MINUS, TOK_MULTIPLY, TOK_DIVIDE, TOK_MOD,
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TOK_BITWISE_AND, TOK_BITWISE_OR, TOK_BITWISE_XOR, TOK_BITWISE_NOT,
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TOK_NUMARGS,
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TOK_NIL,
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TOK_FUNC_CALL,
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TOK_CAST, TOK_DEREF,
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TOK_CODE,
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TOK_SWAP,
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TOK_EXPLICIT_LIST,
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TOK_ENDS_BLOCK, TOK_DONT_POSTINCDEC_UNEXPANDED,
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TOK_NEXT_BLOCK_DYNAMIC, TOK_SKIP_TWO_OPERAND_WORDS,
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TOK_SKIP_FOUR_OPERAND_WORDS, TOK_SKIP_ONE_POINTER, TOK_SKIP_TWO_POINTERS,
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TOK_NATIVE_CODE,
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TOK_DEFINE,
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TOK_DEFOPCODE,
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TOK_ERROR,
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TOK_TAIL,
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TOK_INCLUDE,
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TOK_LIST,
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TOK_UNKNOWN, TOK_EMPTY
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} TokenType;
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#define IS_DOLLAR_TOKEN(t) \
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((t) == TOK_DOLLAR_DATA_REGISTER \
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|| (t) == TOK_DOLLAR_ADDRESS_REGISTER \
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|| (t) == TOK_DOLLAR_GENERAL_REGISTER \
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|| (t) == TOK_DOLLAR_AMODE \
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|| (t) == TOK_DOLLAR_REVERSED_AMODE \
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|| (t) == TOK_DOLLAR_NUMBER \
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|| (t) == TOK_DOLLAR_AMODE_PTR \
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|| (t) == TOK_DOLLAR_REVERSED_AMODE_PTR)
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#define IS_CCBIT_TOKEN(t) \
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((t) == TOK_CCC || (t) == TOK_CCN || (t) == TOK_CCV || (t) == TOK_CCX \
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|| (t) == TOK_CCNZ)
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typedef struct {
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TokenType type;
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union {
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const char *string;
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long n;
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struct {
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unsigned char sgnd; /* Signed or unsigned? */
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unsigned char size; /* 1 == byte, 2 == short, 4 == long. */
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unsigned char which; /* Which field or register. */
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} reginfo, amodeinfo, dollarinfo; /* KEEP THESE THE SAME! */
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/* Types changed blindly. */
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struct {
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unsigned char sgnd; /* Signed or unsigned? */
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unsigned char size; /* 0 == untyped, 1 == byte, 2 == short, 4 == long. */
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} derefinfo, swapinfo;
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} u;
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const char *filename;
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unsigned long lineno;
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} Token;
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extern void init_tokenizer (void);
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extern const InputFile *get_input_file (int levels_back);
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extern void open_file (const char *file, const char *search_dirs[]);
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extern void open_stream (const char *name, FILE *fp);
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extern BOOL fetch_next_token (Token *t);
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extern BOOL tokens_equal (const Token *t1, const Token *t2);
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extern void dump_token (const Token *t);
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extern char *unparse_token (const Token *t, char *buf);
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extern FILE *current_stream (void);
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extern int skip_to_next_token (void);
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extern void close_file (void);
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#endif /* Not _token_h_ */
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