| Index: base/strings/utf_offset_string_conversions.h
|
| diff --git a/base/strings/utf_offset_string_conversions.h b/base/strings/utf_offset_string_conversions.h
|
| deleted file mode 100644
|
| index d4494894efbe7383067cc0fe7200aef2dc0e8299..0000000000000000000000000000000000000000
|
| --- a/base/strings/utf_offset_string_conversions.h
|
| +++ /dev/null
|
| @@ -1,126 +0,0 @@
|
| -// 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 BASE_STRINGS_UTF_OFFSET_STRING_CONVERSIONS_H_
|
| -#define BASE_STRINGS_UTF_OFFSET_STRING_CONVERSIONS_H_
|
| -
|
| -#include <string>
|
| -#include <vector>
|
| -
|
| -#include "base/base_export.h"
|
| -#include "base/strings/string16.h"
|
| -#include "base/strings/string_piece.h"
|
| -
|
| -namespace base {
|
| -
|
| -// A helper class and associated data structures to adjust offsets into a
|
| -// string in response to various adjustments one might do to that string
|
| -// (e.g., eliminating a range). For details on offsets, see the comments by
|
| -// the AdjustOffsets() function below.
|
| -class BASE_EXPORT OffsetAdjuster {
|
| - public:
|
| - struct BASE_EXPORT Adjustment {
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| - Adjustment(size_t original_offset,
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| - size_t original_length,
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| - size_t output_length);
|
| -
|
| - size_t original_offset;
|
| - size_t original_length;
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| - size_t output_length;
|
| - };
|
| - typedef std::vector<Adjustment> Adjustments;
|
| -
|
| - // Adjusts all offsets in |offsets_for_adjustment| to reflect the adjustments
|
| - // recorded in |adjustments|.
|
| - //
|
| - // Offsets represents insertion/selection points between characters: if |src|
|
| - // is "abcd", then 0 is before 'a', 2 is between 'b' and 'c', and 4 is at the
|
| - // end of the string. Valid input offsets range from 0 to |src_len|. On
|
| - // exit, each offset will have been modified to point at the same logical
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| - // position in the output string. If an offset cannot be successfully
|
| - // adjusted (e.g., because it points into the middle of a multibyte sequence),
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| - // it will be set to string16::npos.
|
| - static void AdjustOffsets(const Adjustments& adjustments,
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| - std::vector<size_t>* offsets_for_adjustment);
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| -
|
| - // Adjusts the single |offset| to reflect the adjustments recorded in
|
| - // |adjustments|.
|
| - static void AdjustOffset(const Adjustments& adjustments,
|
| - size_t* offset);
|
| -
|
| - // Adjusts all offsets in |offsets_for_unadjustment| to reflect the reverse
|
| - // of the adjustments recorded in |adjustments|. In other words, the offsets
|
| - // provided represent offsets into an adjusted string and the caller wants
|
| - // to know the offsets they correspond to in the original string. If an
|
| - // offset cannot be successfully unadjusted (e.g., because it points into
|
| - // the middle of a multibyte sequence), it will be set to string16::npos.
|
| - static void UnadjustOffsets(const Adjustments& adjustments,
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| - std::vector<size_t>* offsets_for_unadjustment);
|
| -
|
| - // Adjusts the single |offset| to reflect the reverse of the adjustments
|
| - // recorded in |adjustments|.
|
| - static void UnadjustOffset(const Adjustments& adjustments,
|
| - size_t* offset);
|
| -
|
| - // Combines two sequential sets of adjustments, storing the combined revised
|
| - // adjustments in |adjustments_on_adjusted_string|. That is, suppose a
|
| - // string was altered in some way, with the alterations recorded as
|
| - // adjustments in |first_adjustments|. Then suppose the resulting string is
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| - // further altered, with the alterations recorded as adjustments scored in
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| - // |adjustments_on_adjusted_string|, with the offsets recorded in these
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| - // adjustments being with respect to the intermediate string. This function
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| - // combines the two sets of adjustments into one, storing the result in
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| - // |adjustments_on_adjusted_string|, whose offsets are correct with respect
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| - // to the original string.
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| - //
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| - // Assumes both parameters are sorted by increasing offset.
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| - //
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| - // WARNING: Only supports |first_adjustments| that involve collapsing ranges
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| - // of text, not expanding ranges.
|
| - static void MergeSequentialAdjustments(
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| - const Adjustments& first_adjustments,
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| - Adjustments* adjustments_on_adjusted_string);
|
| -};
|
| -
|
| -// Like the conversions in utf_string_conversions.h, but also fills in an
|
| -// |adjustments| parameter that reflects the alterations done to the string.
|
| -// It may be NULL.
|
| -BASE_EXPORT bool UTF8ToUTF16WithAdjustments(
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| - const char* src,
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| - size_t src_len,
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| - string16* output,
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| - base::OffsetAdjuster::Adjustments* adjustments);
|
| -BASE_EXPORT string16 UTF8ToUTF16WithAdjustments(
|
| - const base::StringPiece& utf8,
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| - base::OffsetAdjuster::Adjustments* adjustments);
|
| -// As above, but instead internally examines the adjustments and applies them
|
| -// to |offsets_for_adjustment|. See comments by AdjustOffsets().
|
| -BASE_EXPORT string16 UTF8ToUTF16AndAdjustOffsets(
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| - const base::StringPiece& utf8,
|
| - std::vector<size_t>* offsets_for_adjustment);
|
| -
|
| -BASE_EXPORT std::string UTF16ToUTF8AndAdjustOffsets(
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| - const base::StringPiece16& utf16,
|
| - std::vector<size_t>* offsets_for_adjustment);
|
| -
|
| -// Limiting function callable by std::for_each which will replace any value
|
| -// which is greater than |limit| with npos. Typically this is called with a
|
| -// string length to clamp offsets into the string to [0, length] (as opposed to
|
| -// [0, length); see comments above).
|
| -template <typename T>
|
| -struct LimitOffset {
|
| - explicit LimitOffset(size_t limit)
|
| - : limit_(limit) {}
|
| -
|
| - void operator()(size_t& offset) {
|
| - if (offset > limit_)
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| - offset = T::npos;
|
| - }
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| -
|
| - size_t limit_;
|
| -};
|
| -
|
| -} // namespace base
|
| -
|
| -#endif // BASE_STRINGS_UTF_OFFSET_STRING_CONVERSIONS_H_
|
|
|