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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/matcher/path_internal.h"
namespace mongo {
bool isAllDigits(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,
size_t startIndex) {
if (path.numParts() == startIndex)
return doc.getField("");
BSONElement res;
BSONObj curr = doc;
bool stop = false;
size_t partNum = startIndex;
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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