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// Copyright (c) 2011 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.
#ifndef CHROME_BROWSER_SPELLCHECKER_WORD_TRIMMER_H_
#define CHROME_BROWSER_SPELLCHECKER_WORD_TRIMMER_H_
#include "base/strings/string16.h"
// Trims |text| to contain only the range from |start| to |end| and |keep| words
// on either side of the range. The |start| and |end| parameters are character
// indexes into |text|. The |keep| parameter is the number of words to keep on
// either side of the |start|-|end| range. The function updates |start| in
// accordance with the trimming.
//
// Example:
//
// size_t start = 14;
// size_t end = 23;
// string16 text = ASCIIToUTF16("one two three four five six seven eight");
// int keep = 2;
// string16 trimmed = TrimWords(&start, end, text, keep);
// DCHECK(trimmed == ASCIIToUTF16("two three four five six seven"));
// DCHECK(start == 10);
//
string16 TrimWords(
size_t* start,
size_t end,
const string16& text,
size_t keep);
#endif // CHROME_BROWSER_SPELLCHECKER_WORD_TRIMMER_H_
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