qjson.c

   1 /*
   2  * QObject JSON integration
   3  *
   4  * Copyright IBM, Corp. 2009
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  *
  12  */
  13
  14 #include "json-lexer.h"
  15 #include "json-parser.h"
  16 #include "json-streamer.h"
  17 #include "qjson.h"
  18
  19 typedef struct JSONParsingState
  20 {
  21     JSONMessageParser parser;
  22     va_list *ap;
  23     QObject *result;
  24 } JSONParsingState;
  25
  26 static void parse_json(JSONMessageParser *parser, QList *tokens)
  27 {
  28     JSONParsingState *s = container_of(parser, JSONParsingState, parser);
  29     s->result = json_parser_parse(tokens, s->ap);
  30 }
  31
  32 QObject *qobject_from_json(const char *string)
  33 {
  34     JSONParsingState state = {};
  35
  36     json_message_parser_init(&state.parser, parse_json);
  37     json_message_parser_feed(&state.parser, string, strlen(string));
  38     json_message_parser_flush(&state.parser);
  39     json_message_parser_destroy(&state.parser);
  40
  41     return state.result;
  42 }
  43
  44 QObject *qobject_from_jsonf(const char *string, ...)
  45 {
  46     JSONParsingState state = {};
  47     va_list ap;
  48
  49     va_start(ap, string);
  50     state.ap = &ap;
  51
  52     json_message_parser_init(&state.parser, parse_json);
  53     json_message_parser_feed(&state.parser, string, strlen(string));
  54     json_message_parser_flush(&state.parser);
  55     json_message_parser_destroy(&state.parser);
  56
  57     va_end(ap);
  58
  59     return state.result;
  60 }