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/* Copyright (C) 2023 Aryadev Chavali
* You may distribute and modify this code under the terms of the
* GPLv2 license. You should have received a copy of the GPLv2
* license with this file. If not, please write to:
* aryadev@aryadevchavali.com.
* Created: 2023-10-24
* Author: Aryadev Chavali
* Description: Lexer for assembly language
*/
#ifndef LEXER_H
#define LEXER_H
#include <lib/darr.h>
typedef enum TokenType
{
TOKEN_PP_CONST,
TOKEN_PP_END,
TOKEN_PP_REFERENCE,
TOKEN_GLOBAL,
TOKEN_STAR,
TOKEN_LITERAL_NUMBER,
TOKEN_LITERAL_CHAR,
TOKEN_NOOP,
TOKEN_HALT,
TOKEN_PUSH,
TOKEN_POP,
TOKEN_PUSH_REG,
TOKEN_MOV,
TOKEN_DUP,
TOKEN_MALLOC,
TOKEN_MALLOC_STACK,
TOKEN_MSET,
TOKEN_MSET_STACK,
TOKEN_MGET,
TOKEN_MGET_STACK,
TOKEN_MDELETE,
TOKEN_MSIZE,
TOKEN_NOT,
TOKEN_OR,
TOKEN_AND,
TOKEN_XOR,
TOKEN_EQ,
TOKEN_LT,
TOKEN_LTE,
TOKEN_GT,
TOKEN_GTE,
TOKEN_PLUS,
TOKEN_SUB,
TOKEN_MULT,
TOKEN_PRINT,
TOKEN_JUMP_ABS,
TOKEN_JUMP_STACK,
TOKEN_JUMP_IF,
TOKEN_CALL,
TOKEN_CALL_STACK,
TOKEN_RET,
TOKEN_SYMBOL,
} token_type_t;
typedef struct
{
token_type_t type;
size_t column, line;
char *str;
size_t str_size;
} token_t;
typedef enum
{
LERR_OK = 0,
LERR_INVALID_CHAR_LITERAL,
LERR_INVALID_PREPROCESSOR_DIRECTIVE,
} lerr_t;
const char *lerr_as_cstr(lerr_t);
typedef darr_t buffer_t;
typedef darr_t token_stream_t;
#define TOKEN_STREAM_AT(STREAM_DATA, INDEX) (((token_t *)(STREAM_DATA))[INDEX])
const char *token_type_as_cstr(token_type_t type);
lerr_t tokenise_buffer(buffer_t *, token_stream_t *);
#endif
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