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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/variations/experiment_labels.h"
#include <vector>
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "components/variations/variations_associated_data.h"
#include "components/variations/variations_experiment_util.h"
namespace variations {
namespace {
const char kVariationPrefix[] = "CrVar";
} // namespace
base::string16 ExtractNonVariationLabels(const base::string16& labels) {
// First, split everything by the label separator.
std::vector<base::StringPiece16> entries = base::SplitStringPiece(
labels, base::StringPiece16(&variations::kExperimentLabelSeparator, 1),
base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
// For each label, keep the ones that do not look like a Variations label.
base::string16 non_variation_labels;
for (const base::StringPiece16& entry : entries) {
if (entry.empty() ||
base::StartsWith(entry,
base::ASCIIToUTF16(kVariationPrefix),
base::CompareCase::INSENSITIVE_ASCII)) {
continue;
}
// Dump the whole thing, including the timestamp.
if (!non_variation_labels.empty())
non_variation_labels += variations::kExperimentLabelSeparator;
entry.AppendToString(&non_variation_labels);
}
return non_variation_labels;
}
} // namespace variations
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