/*
* Copyright (c) 2008 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
%{
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <hx_locl.h>
%}
%union {
char *string;
struct hx_expr *expr;
}
%token kw_TRUE
%token kw_FALSE
%token kw_AND
%token kw_OR
%token kw_IN
%token kw_TAILMATCH
%type <expr> expr
%type <expr> comp
%type <expr> word words
%type <expr> number
%type <expr> string
%type <expr> function
%type <expr> variable variables
%token <string> NUMBER
%token <string> STRING
%token <string> IDENTIFIER
%start start
%%
start: expr { _hx509_expr_input.expr = $1; }
expr : kw_TRUE { $$ = _hx509_make_expr(op_TRUE, NULL, NULL); }
| kw_FALSE { $$ = _hx509_make_expr(op_FALSE, NULL, NULL); }
| '!' expr { $$ = _hx509_make_expr(op_NOT, $2, NULL); }
| expr kw_AND expr { $$ = _hx509_make_expr(op_AND, $1, $3); }
| expr kw_OR expr { $$ = _hx509_make_expr(op_OR, $1, $3); }
| '(' expr ')' { $$ = $2; }
| comp { $$ = _hx509_make_expr(op_COMP, $1, NULL); }
;
words : word { $$ = _hx509_make_expr(expr_WORDS, $1, NULL); }
| word ',' words { $$ = _hx509_make_expr(expr_WORDS, $1, $3); }
;
comp : word '=' '=' word { $$ = _hx509_make_expr(comp_EQ, $1, $4); }
| word '!' '=' word { $$ = _hx509_make_expr(comp_NE, $1, $4); }
| word kw_TAILMATCH word { $$ = _hx509_make_expr(comp_TAILEQ, $1, $3); }
| word kw_IN '(' words ')' { $$ = _hx509_make_expr(comp_IN, $1, $4); }
| word kw_IN variable { $$ = _hx509_make_expr(comp_IN, $1, $3); }
;
word : number { $$ = $1; }
| string { $$ = $1; }
| function { $$ = $1; }
| variable { $$ = $1; }
;
number : NUMBER { $$ = _hx509_make_expr(expr_NUMBER, $1, NULL); };
string : STRING { $$ = _hx509_make_expr(expr_STRING, $1, NULL); };
function: IDENTIFIER '(' words ')' {
$$ = _hx509_make_expr(expr_FUNCTION, $1, $3); }
;
variable: '%' '{' variables '}' { $$ = $3; }
;
variables: IDENTIFIER '.' variables {
$$ = _hx509_make_expr(expr_VAR, $1, $3); }
| IDENTIFIER {
$$ = _hx509_make_expr(expr_VAR, $1, NULL); }
;