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Side by Side Diff: base/utf_string_conversion_utils.h

Issue 6877053: Base: More adjustments to BASE_API and project dependencies to (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 8 months ago
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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_UTF_STRING_CONVERSION_UTILS_H_ 5 #ifndef BASE_UTF_STRING_CONVERSION_UTILS_H_
6 #define BASE_UTF_STRING_CONVERSION_UTILS_H_ 6 #define BASE_UTF_STRING_CONVERSION_UTILS_H_
7 #pragma once 7 #pragma once
8 8
9 // This should only be used by the various UTF string conversion files. 9 // This should only be used by the various UTF string conversion files.
10 10
11 #include "base/base_api.h"
11 #include "base/string16.h" 12 #include "base/string16.h"
12 13
13 namespace base { 14 namespace base {
14 15
15 inline bool IsValidCodepoint(uint32 code_point) { 16 inline bool IsValidCodepoint(uint32 code_point) {
16 // Excludes the surrogate code points ([0xD800, 0xDFFF]) and 17 // Excludes the surrogate code points ([0xD800, 0xDFFF]) and
17 // codepoints larger than 0x10FFFF (the highest codepoint allowed). 18 // codepoints larger than 0x10FFFF (the highest codepoint allowed).
18 // Non-characters and unassigned codepoints are allowed. 19 // Non-characters and unassigned codepoints are allowed.
19 return code_point < 0xD800u || 20 return code_point < 0xD800u ||
20 (code_point >= 0xE000u && code_point <= 0x10FFFFu); 21 (code_point >= 0xE000u && code_point <= 0x10FFFFu);
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53 bool ReadUnicodeCharacter(const wchar_t* src, 54 bool ReadUnicodeCharacter(const wchar_t* src,
54 int32 src_len, 55 int32 src_len,
55 int32* char_index, 56 int32* char_index,
56 uint32* code_point); 57 uint32* code_point);
57 #endif // defined(WCHAR_T_IS_UTF32) 58 #endif // defined(WCHAR_T_IS_UTF32)
58 59
59 // WriteUnicodeCharacter ------------------------------------------------------- 60 // WriteUnicodeCharacter -------------------------------------------------------
60 61
61 // Appends a UTF-8 character to the given 8-bit string. Returns the number of 62 // Appends a UTF-8 character to the given 8-bit string. Returns the number of
62 // bytes written. 63 // bytes written.
63 size_t WriteUnicodeCharacter(uint32 code_point, std::string* output); 64 // TODO(brettw) Bug 79631: This function should not be exposed.
65 BASE_API size_t WriteUnicodeCharacter(uint32 code_point, std::string* output);
64 66
65 // Appends the given code point as a UTF-16 character to the given 16-bit 67 // Appends the given code point as a UTF-16 character to the given 16-bit
66 // string. Returns the number of 16-bit values written. 68 // string. Returns the number of 16-bit values written.
67 size_t WriteUnicodeCharacter(uint32 code_point, string16* output); 69 size_t WriteUnicodeCharacter(uint32 code_point, string16* output);
68 70
69 #if defined(WCHAR_T_IS_UTF32) 71 #if defined(WCHAR_T_IS_UTF32)
70 // Appends the given UTF-32 character to the given 32-bit string. Returns the 72 // Appends the given UTF-32 character to the given 32-bit string. Returns the
71 // number of 32-bit values written. 73 // number of 32-bit values written.
72 inline size_t WriteUnicodeCharacter(uint32 code_point, std::wstring* output) { 74 inline size_t WriteUnicodeCharacter(uint32 code_point, std::wstring* output) {
73 // This is the easy case, just append the character. 75 // This is the easy case, just append the character.
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86 void PrepareForUTF8Output(const CHAR* src, size_t src_len, std::string* output); 88 void PrepareForUTF8Output(const CHAR* src, size_t src_len, std::string* output);
87 89
88 // Prepares an output buffer (containing either UTF-16 or -32 data) given some 90 // Prepares an output buffer (containing either UTF-16 or -32 data) given some
89 // UTF-8 input that will be converted to it. See PrepareForUTF8Output(). 91 // UTF-8 input that will be converted to it. See PrepareForUTF8Output().
90 template<typename STRING> 92 template<typename STRING>
91 void PrepareForUTF16Or32Output(const char* src, size_t src_len, STRING* output); 93 void PrepareForUTF16Or32Output(const char* src, size_t src_len, STRING* output);
92 94
93 } // namespace base 95 } // namespace base
94 96
95 #endif // BASE_UTF_STRING_CONVERSION_UTILS_H_ 97 #endif // BASE_UTF_STRING_CONVERSION_UTILS_H_
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