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
|
// -*- mode: Rust; -*-
use crate::message::lexer;
grammar;
pub Message: () = {
LITERAL,
CompressedData,
EncryptedPart,
SignedPart,
OPAQUE_CONTENT,
};
CompressedData: () = {
COMPRESSED_DATA Message POP
};
Seipv1Part: () = {
SEIPv1 Message MDC POP,
SEIPv1 OPAQUE_CONTENT POP,
}
AedPart: () = {
AED Message POP,
}
// An encrypted part is 0 or more ESKs followed by an encryption container.
EncryptedPart: () = {
EncryptionContainer,
ESKS EncryptionContainer,
};
EncryptionContainer: () = {
Seipv1Part,
AedPart,
};
ESKS: () = {
ESK,
ESKS ESK,
};
ESK: () = {
PKESK,
SKESK,
};
// Signatures bracket a message like so:
//
// OPS OPS Message SIG SIG
//
// or, there are 1 or more signatures preceding a Message (this is an
// artifact of old PGP versions):
//
// SIG SIG Message
SignedPart: () = {
SIG Message,
OPS Message SIG,
}
extern {
type Location = usize;
type Error = lexer::LexicalError;
enum lexer::Token {
LITERAL => lexer::Token::Literal,
COMPRESSED_DATA => lexer::Token::CompressedData,
SKESK => lexer::Token::SKESK,
PKESK => lexer::Token::PKESK,
SEIPv1 => lexer::Token::SEIPv1,
MDC => lexer::Token::MDC,
AED => lexer::Token::AED,
OPS => lexer::Token::OPS,
SIG => lexer::Token::SIG,
POP => lexer::Token::Pop,
OPAQUE_CONTENT => lexer::Token::OpaqueContent,
}
}
|
