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|
/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2024 OpenLink Software
*
* This project 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; only version 2 of the License, dated June 1991.
*
* 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
%pure-parser
%parse-param {jsonp_t * jsonp_arg}
%parse-param {yyscan_t yyscanner}
%lex-param {jsonp_t * jsonp_arg}
%lex-param {yyscan_t yyscanner}
%{
#include "json.h"
#include "sqlparext.h"
#include "sqlfn.h"
#define jsonyyerror(jsonp_arg,yyscan,str) jsonyyerror_impl(jsonp_arg, str)
#define json_error(str) jsonyyerror_impl(jsonp_arg, str)
extern int jsonyylex (void *yylval_param, jsonp_t *jsonp_arg, yyscan_t yyscanner);
%}
%union {
caddr_t box;
caddr_t *list;
dk_set_t set;
}
%token __JSON_SYNTAX
%token OBJ_BEGIN
%token OBJ_END
%token ARR_BEGIN
%token ARR_END
%token COLON
%token COMMA
%token <box> STRING
%token <box> NUMBER
%token <box> TRUE_L
%token <box> FALSE_L
%token <box> NULL_L
%token BASE CONTEXT DIRECTION GRAPH ID IMPORT INCLUDED INDEX JSON LANGUAGE LIST CONTAINER
%token NEST NONE PREFIX PROPAGATE PROTECTED REVERSE SET TYPE VALUE VERSION VOCAB
%token <box> IRI
%token <box> QNAME
%token <box> NCNAME
%token <box> BNODE
%token __JSON_SYNTAX_END
%type <box> object
%type <list> jsondoc
%type <set> members
%type <set> members_opt
%type <set> pair
%type <box> value
%type <box> array
%type <set> value_list
%type <set> value_list_opt
%%
jsondoc
: object { jsonp_arg->jtree = (caddr_t *) $1; }
| array { jsonp_arg->jtree = (caddr_t *) $1; }
;
object : OBJ_BEGIN members_opt OBJ_END {
$$ = (caddr_t)t_list_to_array (
t_NCONC (
/* header */
t_CONS(t_alloc_box (0, DV_COMPOSITE),
t_CONS (t_box_string ("structure"), NULL))
,
$2
)
);
}
;
members_opt
: /* empty */ { $$ = NULL; }
| members
;
members : pair { $$ = $1; }
| members COMMA pair { $$ = t_NCONC ($1, $3); }
| members COMMA error { json_error ("pair of field name and value is expected after ','"); }
;
pair
: STRING COLON value {
$$ = NULL;
t_set_push (&($$), $3);
t_set_push (&($$), $1);
}
| STRING COLON error { json_error ("value is expected after ':'"); }
| STRING error { json_error ("colon is expected after field name"); }
;
array
: ARR_BEGIN value_list_opt ARR_END { $$ = (caddr_t)t_list_to_array ($2);}
;
value_list_opt
: /* empty */ { $$ = NULL; }
| value_list
;
value_list
: value { $$ = t_CONS ($1, NULL); }
| value_list COMMA value { $$ = t_NCONC ($1, t_CONS($3, NULL)); }
| value_list COMMA error { json_error ("array member is expected after ','"); }
;
value : STRING { $$ = $1; }
| NUMBER { $$ = $1; }
| TRUE_L { $$ = t_box_num (1); }
| FALSE_L { $$ = t_box_num (0); }
| NULL_L { $$ = t_NEW_DB_NULL; }
| object { $$ = $1; }
| array { $$ = $1; }
;
%%
|
