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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/*
* Copyright (C) 2020-2021 Jo-Philipp Wich <jo@mein.io>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __LEXER_H_
#define __LEXER_H_
#include "source.h"
#define __T_MAX 82
#define T_EXCEPTION (__T_MAX + 0)
#define T_CFUNC (__T_MAX + 1)
#define T_RESSOURCE (__T_MAX + 2)
typedef enum {
TK_LEXP = 1,
TK_REXP,
TK_LSTM,
TK_RSTM,
TK_IF,
TK_ELSE,
TK_COMMA,
TK_ASBAND,
TK_ASBXOR,
TK_ASBOR,
TK_ASLEFT,
TK_ASRIGHT,
TK_ASMUL,
TK_ASDIV,
TK_ASMOD,
TK_ASADD,
TK_ASSUB,
TK_ASSIGN,
TK_QMARK,
TK_COLON,
TK_OR,
TK_AND,
TK_BOR,
TK_BXOR,
TK_BAND,
TK_EQ,
TK_NE,
TK_EQS,
TK_NES,
TK_LT,
TK_LE,
TK_GT,
TK_GE,
TK_IN,
TK_LSHIFT,
TK_RSHIFT,
TK_ADD,
TK_SUB,
TK_MUL,
TK_DIV,
TK_MOD,
TK_NOT,
TK_COMPL,
TK_INC,
TK_DEC,
TK_LPAREN,
TK_LBRACK,
TK_TEXT,
TK_LBRACE,
TK_RBRACE,
TK_SCOL,
TK_RPAREN,
TK_ENDIF,
TK_ELIF,
TK_WHILE,
TK_ENDWHILE,
TK_FOR,
TK_ENDFOR,
TK_FUNC,
TK_LABEL,
TK_ENDFUNC,
TK_TRY,
TK_CATCH,
TK_SWITCH,
TK_CASE,
TK_DEFAULT,
TK_ELLIP,
TK_RETURN,
TK_BREAK,
TK_CONTINUE,
TK_LOCAL,
TK_ARROW,
TK_DOT,
TK_RBRACK,
TK_BOOL,
TK_NUMBER,
TK_DOUBLE,
TK_STRING,
TK_REGEXP,
TK_NULL,
TK_THIS,
TK_EOF,
TK_ERROR
} uc_tokentype_t;
typedef enum {
UT_LEX_IDENTIFY_BLOCK,
UT_LEX_BLOCK_COMMENT_START,
UT_LEX_BLOCK_EXPRESSION_START,
UT_LEX_BLOCK_EXPRESSION_EMIT_TAG,
UT_LEX_BLOCK_STATEMENT_START,
UT_LEX_BLOCK_COMMENT,
UT_LEX_IDENTIFY_TOKEN,
UT_LEX_PARSE_TOKEN,
UT_LEX_EOF
} uc_lex_state_t;
typedef struct {
uc_tokentype_t type;
json_object *val;
size_t pos;
} uc_token;
typedef struct {
bool lstrip_blocks;
bool trim_blocks;
bool strict_declarations;
} uc_parse_config;
typedef struct {
uc_lex_state_t state;
uc_parse_config *config;
uc_source *source;
uint8_t eof:1;
uint8_t skip_leading_whitespace:1;
uint8_t skip_leading_newline:1;
uint8_t within_expression_block:1;
uint8_t within_statement_block:1;
uint8_t semicolon_emitted:1;
uint8_t expect_div:1;
uint8_t is_escape:1;
size_t buflen;
char *buf, *bufstart, *bufend;
size_t lookbehindlen;
char *lookbehind;
const void *tok;
uc_token curr;
char esc[5];
uint8_t esclen;
int lead_surrogate;
size_t lastoff;
} uc_lexer;
void uc_lexer_init(uc_lexer *lex, uc_parse_config *config, uc_source *source);
void uc_lexer_free(uc_lexer *lex);
uc_token *uc_lexer_next_token(uc_lexer *lex);
bool utf8enc(char **out, int *rem, int code);
const char *
uc_get_tokenname(int type);
#endif /* __LEXER_H_ */
|
