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// path_internal.h
/**
* Copyright (C) 2013 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 "mongo/db/matcher/path_internal.h"
namespace mongo {
bool isAllDigits( const StringData& str ) {
for ( unsigned i = 0; i < str.size(); i++ ) {
if ( !isdigit( str[i] ) )
return false;
}
return true;
}
BSONElement getFieldDottedOrArray( const BSONObj& doc,
const FieldRef& path,
size_t* idxPath ) {
if ( path.numParts() == 0 )
return doc.getField( "" );
BSONElement res;
BSONObj curr = doc;
bool stop = false;
size_t partNum = 0;
while ( partNum < path.numParts() && !stop ) {
res = curr.getField( path.getPart( partNum ) );
switch ( res.type() ) {
case EOO:
stop = true;
break;
case Object:
curr = res.Obj();
++partNum;
break;
case Array:
stop = true;
break;
default:
if ( partNum+1 < path.numParts() ) {
res = BSONElement();
}
stop = true;
}
}
*idxPath = partNum;
return res;
}
} // namespace mongo
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