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|
%{
/* 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 Lesser 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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 <stdlib.h>
#include <assert.h>
#include <sieve.h>
%}
%union {
char *string;
long number;
sieve_instr_t instr;
sieve_value_t *value;
list_t list;
struct {
char *ident;
list_t args;
} command;
}
%token <string> IDENT TAG
%token <number> NUMBER
%token <string> STRING MULTILINE
%token REQUIRE IF ELSIF ELSE ANYOF ALLOF NOT
%type <value> arg
%type <list> slist stringlist arglist maybe_arglist
%type <command> command
%%
input : /* empty */
| list
;
list : statement
| list statement
;
statement : REQUIRE stringlist ';'
{
sieve_require ($2);
sieve_slist_destroy ($2);
}
| 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 : cond
| testlist ',' cond
;
cond : test
| ANYOF '(' testlist ')'
| ALLOF '(' testlist ')'
| NOT cond
;
test : command
{
sieve_register_t *reg = sieve_test_lookup ($1.ident);
if (!reg)
sieve_error ("%s:%d: unknown test: %s",
sieve_filename, sieve_line_num,
$1.ident);
else if (!reg->required)
sieve_error ("%s:%d: test `%s' has not been required",
sieve_filename, sieve_line_num,
$1.ident);
/*free unneeded memory */
}
;
command : IDENT maybe_arglist
{
$$.ident = $1;
$$.args = $2;
}
;
action : command
{
sieve_register_t *reg = sieve_action_lookup ($1.ident);
if (!reg)
sieve_error ("%s:%d: unknown action: %s",
sieve_filename, sieve_line_num,
$1.ident);
else if (!reg->required)
sieve_error ("%s:%d: action `%s' has not been required",
sieve_filename, sieve_line_num,
$1.ident);
/*free unneeded memory */
}
;
maybe_arglist: /* empty */
{
$$ = NULL;
}
| arglist
;
arglist : arg
{
list_create (&$$);
list_append ($$, &$1);
}
| arglist arg
{
list_append ($1, &$2);
$$ = $1;
}
;
arg : stringlist
{
$$ = sieve_value_create (SVT_STRING_LIST, $1);
}
| MULTILINE
{
$$ = sieve_value_create (SVT_STRING, $1);
}
| NUMBER
{
$$ = sieve_value_create (SVT_NUMBER, &$1);
}
| TAG
{
$$ = sieve_value_create (SVT_TAG, $1);
}
;
stringlist : STRING
{
list_create (&$$);
list_append ($$, $1);
}
| '[' slist ']'
{
$$ = $2;
}
;
slist : STRING
{
list_create (&$$);
list_append ($$, $1);
}
| slist ',' STRING
{
list_append ($1, $3);
$$ = $1;
}
;
%%
int
yyerror (char *s)
{
sieve_error ("%s:%d: %s", sieve_filename, sieve_line_num, s);
return 0;
}
int
sieve_parse (const char *name)
{
sieve_register_standard_actions ();
sieve_register_standard_tests ();
sieve_open_source (name);
return yyparse ();
}
|
