sieve.y
2.46 KB
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
%{
/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <sieve.h>
%}
%token IDENT TAG NUMBER STRING MULTILINE
%token REQUIRE IF ELSIF ELSE ANYOF ALLOF TRUE FALSE NOT
%%
input : /* empty */
| list
;
list : statement
| list statement
;
statement : REQUIRE stringlist ';'
| action ';'
| IF cond block maybe_elsif maybe_else
;
maybe_elsif : /* empty */
| elsif
;
elsif : ELSIF cond block
| elsif ELSIF cond block
;
maybe_else : /* empty */
| ELSE block
;
block : '{' list '}'
;
testlist : test
| testlist ',' test
;
cond : test
| ANYOF '(' testlist ')'
| ALLOF '(' testlist ')'
| NOT cond
;
test : FALSE
| TRUE
| command
;
command : IDENT maybe_arglist
;
action : command
;
maybe_arglist: /* empty */
| arglist
;
arglist : arg
| arglist arg
;
arg : stringlist
| MULTILINE
| NUMBER
| TAG
;
stringlist : STRING
| '[' slist ']'
;
slist : STRING
| slist ',' STRING
;
%%
int
yyerror (char *s)
{
fprintf (stderr, "%s:%d: ", sieve_filename, sieve_line_num);
fprintf (stderr, "%s\n", s);
}
int
sieve_parse (const char *name)
{
sieve_open_source (name);
return yyparse ();
}