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70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
// json.cpp
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "stdafx.h"
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#include "json.h"
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#include "../util/builder.h"
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/* partial implementation for now */
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void skipWhite(const char *&p) {
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while( *p == ' ' || *p == '\r' || *p == '\n' || *p == '\t' )
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p++;
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}
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void value(JSObjBuilder& b, const char *&p, string& id) {
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if( strncmp(p, "ObjId()", 7) == 0 ) {
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p += 7;
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b.appendOID(id.c_str());
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}
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else if( *p == '1' ) {
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b.append(id.c_str(), 1);
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p++;
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}
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else {
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assert(false);
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}
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}
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void _fromjson(JSObjBuilder& b, const char *&p) {
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while( 1 ) {
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skipWhite(p);
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if( *p == 0 )
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break;
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if( *p == '{' ) { _fromjson(b,++p); continue; }
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if( *p == '}' ) { ++p; break; }
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if( *p == '_' || isalpha(*p) ) {
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string id;
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while( *p == '_' || isalpha(*p) || isdigit(*p) ) {
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id += *p++;
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}
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skipWhite(p);
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assert( *p == ':' ); p++;
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skipWhite(p);
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value(b, p, id);
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continue;
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}
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}
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}
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JSObj fromjson(const char *str) {
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JSObjBuilder b;
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_fromjson(b,str);
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return b.doneAndDecouple();
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}
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