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// json.cpp
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "stdafx.h"
#include "json.h"
#include "../util/builder.h"
/* partial implementation for now */
void skipWhite(const char *&p) {
while( *p == ' ' || *p == '\r' || *p == '\n' || *p == '\t' )
p++;
}
void value(BSONObjBuilder& b, const char *&p, string& id) {
if( strncmp(p, "ObjId()", 7) == 0 ) {
p += 7;
b.appendOID(id.c_str());
}
else if( *p == '1' ) {
b.append(id.c_str(), 1);
p++;
}
else {
assert(false);
}
}
void _fromjson(BSONObjBuilder& b, const char *&p) {
while( 1 ) {
skipWhite(p);
if( *p == 0 )
break;
if( *p == '{' ) { _fromjson(b,++p); continue; }
if( *p == '}' ) { ++p; break; }
if( *p == '_' || isalpha(*p) ) {
string id;
while( *p == '_' || isalpha(*p) || isdigit(*p) ) {
id += *p++;
}
skipWhite(p);
assert( *p == ':' ); p++;
skipWhite(p);
value(b, p, id);
continue;
}
}
}
BSONObj fromjson(const char *str) {
BSONObjBuilder b;
_fromjson(b,str);
return b.doneAndDecouple();
}
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