1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* Copyright (C) 2024 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: 2024-04-14
* Author: Aryadev Chavali
* Description: Lexer for assembly language
*/
#ifndef LEXER_HPP
#define LEXER_HPP
#include <ostream>
#include <string>
#include <tuple>
#include <vector>
enum class token_type_t
{
PP_CONST, // %const(<symbol>)...
PP_USE, // %use <string>
PP_END, // %end
PP_REFERENCE, // $<symbol>
GLOBAL,
STAR,
LITERAL_NUMBER,
LITERAL_CHAR,
LITERAL_STRING,
NOOP,
HALT,
PUSH,
POP,
PUSH_REG,
MOV,
DUP,
MALLOC,
MALLOC_STACK,
MSET,
MSET_STACK,
MGET,
MGET_STACK,
MDELETE,
MSIZE,
NOT,
OR,
AND,
XOR,
EQ,
LT,
LTE,
GT,
GTE,
PLUS,
SUB,
MULT,
PRINT,
JUMP_ABS,
JUMP_STACK,
JUMP_IF,
CALL,
CALL_STACK,
RET,
SYMBOL,
};
const char *token_type_as_cstr(token_type_t type);
struct token_t
{
token_type_t type;
size_t column, line;
std::string content;
token_t();
token_t(token_type_t, std::string, size_t col = 0, size_t line = 0);
};
std::ostream &operator<<(std::ostream &, token_t &);
enum class lerr_t
{
OK = 0,
INVALID_CHAR_LITERAL,
INVALID_CHAR_LITERAL_ESCAPE_SEQUENCE,
INVALID_STRING_LITERAL,
INVALID_NUMBER_LITERAL,
INVALID_PREPROCESSOR_DIRECTIVE,
};
const char *lerr_as_cstr(lerr_t);
lerr_t tokenise_buffer(std::string_view, std::vector<token_t *> &);
#endif
|
