#ifndef STERLING_COMPILER_H
# define STERLING_COMPILER_H

#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>

//simd
# ifdef __x86_64__
#  include <x86intrin.h>
# endif

typedef enum {
    TOK_NONE	= 1 << 0,
    TOK_RAW		= 1 << 1,
	TOK_STRING	= 1 << 2,//"asdfasf"; L"WideString"
    TOK_LITERAL	= 1 << 3,//INT: 42, 0xff, 0777, 100L; FLOAT:3.14, 1e-5, 2.0f; ENUM; char CONST 'a' '\n' L'x'
    TOK_OP		= 1 << 4,
    TOK_PREPROC	= 1 << 5,
    TOK_COMMENT	= 1 << 6,
    TOK_KEY		= 1 << 7,
    TOK_ID		= 1 << 8,
	TOK_NUM		= 1 << 9
} TKN_CTX;

typedef struct Token_s {
	size_t	size;
	TKN_CTX	ctx;
	char	*data;
}	Token_t;

typedef struct {
    char *op;
    size_t len;
} MultiOp;

typedef struct {
    const char *name;
    TKN_CTX     ctx;
} KeywordEntry;


const char *SYMBOLS = ";(){}[]$%&*#@!?:,.<>|-+=~`^";

// Common C operators (Order matters: put longer ones first if you add 3-char ops)
static const MultiOp MUNCH_TABLE[] = {
	{"%:%:", 4},
	{"<<=", 3}, {">>=", 3}, {"...", 3},
	{"\?\?=", 3}, {"\?\?/", 3}, {"\?\?'", 3}, {"\?\?(", 3},
	{"\?\?)", 3}, {"\?\?!", 3}, {"\?\?<", 3},
	{"\?\?>", 3}, {"\?\?-", 3}, //trigraph
    {"==", 2}, {"!=", 2}, {"<=", 2}, {">=", 2}, {"##", 2},
    {"++", 2}, {"--", 2}, {"->", 2}, {"+=", 2}, {"%=",2},
    {"-=", 2}, {"*=", 2}, {"/=", 2}, {"&&", 2}, {"||", 2},
    {"^=", 2}, {"<<", 2}, {">>", 2}, {"|=", 2}, {"&=", 2},//
	{"<:", 2}, {":>", 2}, {"<%", 2}, {"%>", 2}, {"%:", 2},//digraphs
    {NULL, 0}
};

// This can be expanded at runtime if you use a dynamic array instead of a static one
static const KeywordEntry KEYWORD_TABLE[] = {
    {"if",		TOK_KEY},
    {"else",	TOK_KEY},
    {"while",	TOK_KEY},
    {"return",	TOK_KEY},
    {"var",		TOK_KEY},
    {"int",		TOK_KEY},
    {"float",	TOK_KEY},
    {"void",	TOK_KEY},
    {"include",	TOK_PREPROC},
    {"define",	TOK_PREPROC},
    {"comptime",TOK_KEY},
    {"reflect",	TOK_KEY},
    {NULL,		TOK_NONE}
};

#endif