-/*
- * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Author : Maxim Mamontov <faust@stargazer.dp.ua>
- */
-
-#include "stg/json_parser.h"
-
-#include <yajl/yajl_parse.h>
-
-using STG::JSON::Parser;
-using STG::JSON::NodeParser;
-
-class Parser::Impl
-{
- public:
- Impl(NodeParser* topParser);
- ~Impl()
- {
- yajl_free(m_handle);
- }
-
- bool append(const char* data, size_t size) { return yajl_parse(m_handle, reinterpret_cast<const unsigned char*>(data), size) != yajl_status_ok; }
- bool done() { return yajl_complete_parse(m_handle) != yajl_status_ok; }
-
- static int parseNull(void* ctx)
- { return runParser(ctx, &NodeParser::parseNull); }
- static int parseBoolean(void* ctx, int value)
- { return runParser(ctx, &NodeParser::parseBoolean, value != 0); }
- static int parseNumber(void* ctx, const char* value, size_t size)
- { return runParser(ctx, &NodeParser::parseNumber, std::string(value, size)); }
- static int parseString(void* ctx, const unsigned char* value, size_t size)
- { return runParser(ctx, &NodeParser::parseString, std::string(reinterpret_cast<const char*>(value), size)); }
- static int parseStartMap(void* ctx)
- { return runParser(ctx, &NodeParser::parseStartMap); }
- static int parseMapKey(void* ctx, const unsigned char* value, size_t size)
- { return runParser(ctx, &NodeParser::parseMapKey, std::string(reinterpret_cast<const char*>(value), size)); }
- static int parseEndMap(void* ctx)
- { return runParser(ctx, &NodeParser::parseEndMap); }
- static int parseStartArray(void* ctx)
- { return runParser(ctx, &NodeParser::parseStartArray); }
- static int parseEndArray(void* ctx)
- { return runParser(ctx, &NodeParser::parseEndArray); }
-
- private:
- yajl_handle m_handle;
- NodeParser* m_parser;
-
- static yajl_callbacks callbacks;
-
- static NodeParser& getParser(void* ctx) { return *static_cast<Impl*>(ctx)->m_parser; }
- static bool runParser(void* ctx, NodeParser* (NodeParser::*func)())
- {
- Impl& p = *static_cast<Impl*>(ctx);
- NodeParser* next = (p.m_parser->*func)();
- if (next != NULL)
- p.m_parser = next;
- return next != NULL;
- }
- template <typename T>
- static bool runParser(void* ctx, NodeParser* (NodeParser::*func)(const T&), const T& value)
- {
- Impl& p = *static_cast<Impl*>(ctx);
- NodeParser* next = (p.m_parser->*func)(value);
- if (next != NULL)
- p.m_parser = next;
- return next != NULL;
- }
-};
-
-yajl_callbacks Parser::Impl::callbacks = {
- Parser::Impl::parseNull,
- Parser::Impl::parseBoolean,
- NULL, // parsing of integer is done using parseNumber
- NULL, // parsing of double is done using parseNumber
- Parser::Impl::parseNumber,
- Parser::Impl::parseString,
- Parser::Impl::parseStartMap,
- Parser::Impl::parseMapKey,
- Parser::Impl::parseEndMap,
- Parser::Impl::parseStartArray,
- Parser::Impl::parseEndArray
-};
-
-Parser::Impl::Impl(NodeParser* topParser)
- : m_handle(yajl_alloc(&callbacks, NULL, this)),
- m_parser(topParser)
-{
-}
-
-Parser::Parser(NodeParser* topParser)
- : m_impl(new Impl(topParser))
-{
-}
-
-Parser::~Parser()
-{
-}
-
-bool Parser::append(const char* data, size_t size)
-{
- return m_impl->append(data, size);
-}
-
-bool Parser::done()
-{
- return m_impl->done();
-}