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Issue 196793010: Move IsStringASCII/UTF8 to base namespace. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 9 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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 #include "base/strings/string_util.h" 5 #include "base/strings/string_util.h"
6 6
7 #include <ctype.h> 7 #include <ctype.h>
8 #include <errno.h> 8 #include <errno.h>
9 #include <math.h> 9 #include <math.h>
10 #include <stdarg.h> 10 #include <stdarg.h>
(...skipping 306 matching lines...) Expand 10 before | Expand all | Expand 10 after
317 bool ContainsOnlyChars(const StringPiece& input, 317 bool ContainsOnlyChars(const StringPiece& input,
318 const StringPiece& characters) { 318 const StringPiece& characters) {
319 return input.find_first_not_of(characters) == StringPiece::npos; 319 return input.find_first_not_of(characters) == StringPiece::npos;
320 } 320 }
321 321
322 bool ContainsOnlyChars(const StringPiece16& input, 322 bool ContainsOnlyChars(const StringPiece16& input,
323 const StringPiece16& characters) { 323 const StringPiece16& characters) {
324 return input.find_first_not_of(characters) == StringPiece16::npos; 324 return input.find_first_not_of(characters) == StringPiece16::npos;
325 } 325 }
326 326
327 } // namespace base 327 bool IsStringUTF8(const StringPiece& str) {
328 const char *src = str.data();
329 int32 src_len = static_cast<int32>(str.length());
330 int32 char_index = 0;
331
332 while (char_index < src_len) {
333 int32 code_point;
334 CBU8_NEXT(src, char_index, src_len, code_point);
335 if (!IsValidCharacter(code_point))
336 return false;
337 }
338 return true;
339 }
328 340
329 template<class STR> 341 template<class STR>
330 static bool DoIsStringASCII(const STR& str) { 342 static bool DoIsStringASCII(const STR& str) {
331 for (size_t i = 0; i < str.length(); i++) { 343 for (size_t i = 0; i < str.length(); i++) {
332 typename ToUnsigned<typename STR::value_type>::Unsigned c = str[i]; 344 typename ToUnsigned<typename STR::value_type>::Unsigned c = str[i];
333 if (c > 0x7F) 345 if (c > 0x7F)
334 return false; 346 return false;
335 } 347 }
336 return true; 348 return true;
337 } 349 }
338 350
339 bool IsStringASCII(const base::StringPiece& str) { 351 bool IsStringASCII(const StringPiece& str) {
340 return DoIsStringASCII(str); 352 return DoIsStringASCII(str);
341 } 353 }
342 354
343 bool IsStringASCII(const base::string16& str) { 355 bool IsStringASCII(const base::string16& str) {
344 return DoIsStringASCII(str); 356 return DoIsStringASCII(str);
345 } 357 }
346 358
347 bool IsStringUTF8(const std::string& str) { 359 } // namespace base
348 const char *src = str.data();
349 int32 src_len = static_cast<int32>(str.length());
350 int32 char_index = 0;
351
352 while (char_index < src_len) {
353 int32 code_point;
354 CBU8_NEXT(src, char_index, src_len, code_point);
355 if (!base::IsValidCharacter(code_point))
356 return false;
357 }
358 return true;
359 }
360 360
361 template<typename Iter> 361 template<typename Iter>
362 static inline bool DoLowerCaseEqualsASCII(Iter a_begin, 362 static inline bool DoLowerCaseEqualsASCII(Iter a_begin,
363 Iter a_end, 363 Iter a_end,
364 const char* b) { 364 const char* b) {
365 for (Iter it = a_begin; it != a_end; ++it, ++b) { 365 for (Iter it = a_begin; it != a_end; ++it, ++b) {
366 if (!*b || base::ToLowerASCII(*it) != *b) 366 if (!*b || base::ToLowerASCII(*it) != *b)
367 return false; 367 return false;
368 } 368 }
369 return *b == 0; 369 return *b == 0;
(...skipping 517 matching lines...) Expand 10 before | Expand all | Expand 10 after
887 } 887 }
888 888
889 } // namespace 889 } // namespace
890 890
891 size_t base::strlcpy(char* dst, const char* src, size_t dst_size) { 891 size_t base::strlcpy(char* dst, const char* src, size_t dst_size) {
892 return lcpyT<char>(dst, src, dst_size); 892 return lcpyT<char>(dst, src, dst_size);
893 } 893 }
894 size_t base::wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size) { 894 size_t base::wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size) {
895 return lcpyT<wchar_t>(dst, src, dst_size); 895 return lcpyT<wchar_t>(dst, src, dst_size);
896 } 896 }
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