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
|
#ifndef LEXER_H
#define LEXER_H
#include <stddef.h>
#include <stdint.h>
typedef enum {
TOKEN_HEAD,
TOKEN_IDENTIFIER,
TOKEN_INTEGER,
TOKEN_FLOAT,
TOKEN_STRING,
TOKEN_CHAR,
TOKEN_TRUE,
TOKEN_FALSE,
TOKEN_IF,
TOKEN_ELSE,
TOKEN_WHILE,
TOKEN_FOR,
TOKEN_BREAK,
TOKEN_CASE,
TOKEN_CONST,
TOKEN_DO,
TOKEN_ENUM,
TOKEN_EXTERN,
TOKEN_GOTO,
TOKEN_INLINE,
TOKEN_RETURN,
TOKEN_SIGNED,
TOKEN_UNSIGNED,
TOKEN_STATIC,
TOKEN_STRUCT,
TOKEN_SWITCH,
TOKEN_TYPEDEF,
TOKEN_UNION,
TOKEN_VOLATILE,
TOKEN_COLON,
TOKEN_SEMICOLON,
TOKEN_COMMA,
TOKEN_DOT,
TOKEN_ARROW,
TOKEN_ASSIGN,
TOKEN_EQUAL,
TOKEN_LSHIFT,
TOKEN_RSHIFT,
TOKEN_LSHIFT_EQ,
TOKEN_RSHIFT_EQ,
TOKEN_XOR,
TOKEN_XOR_EQ,
TOKEN_OR,
TOKEN_BOR,
TOKEN_BOR_EQ,
TOKEN_NOT,
TOKEN_NOT_EQ,
TOKEN_GREATER,
TOKEN_GREATER_EQ,
TOKEN_LESS,
TOKEN_LESS_EQ,
TOKEN_LPAREN,
TOKEN_RPAREN,
TOKEN_LSQUARE,
TOKEN_RSQUARE,
TOKEN_LCURLY,
TOKEN_RCURLY,
TOKEN_PLUS,
TOKEN_MINUS,
TOKEN_STAR,
TOKEN_SLASH,
TOKEN_PLUS_EQ,
TOKEN_PLUS_PLUS,
TOKEN_MINUS_EQ,
TOKEN_MINUS_MINUS,
TOKEN_STAR_EQ,
TOKEN_SLASH_EQ,
TOKEN_REF,
} token_type;
typedef struct _token {
char *lexeme;
size_t length;
token_type type;
struct _token *next;
struct _token *prev;
} token;
token *lexer_parse(char *src);
#endif
|
