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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.`
#ifndef COBALT_LAYOUT_WHITE_SPACE_PROCESSING_H_
#define COBALT_LAYOUT_WHITE_SPACE_PROCESSING_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "cobalt/cssom/property_value.h"
namespace cobalt {
namespace layout {
// https://www.w3.org/TR/css-text-3/#white-space-property
bool DoesCollapseSegmentBreaks(
const scoped_refptr<cssom::PropertyValue>& value);
bool DoesCollapseWhiteSpace(const scoped_refptr<cssom::PropertyValue>& value);
bool DoesAllowTextWrapping(const scoped_refptr<cssom::PropertyValue>& value);
// Performs white space collapsing and transformation that correspond to
// the phase I of the white space processing.
// https://www.w3.org/TR/css3-text/#white-space-phase-1
void CollapseWhiteSpace(std::string* text);
bool FindNextNewlineSequence(const std::string& utf8_text, size_t index,
size_t* sequence_start, size_t* sequence_length);
} // namespace layout
} // namespace cobalt
#endif // COBALT_LAYOUT_WHITE_SPACE_PROCESSING_H_