libcxx/test/support/locale_helpers.h

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LIBCXX_TEST_SUPPORT_LOCALE_HELPERS_H
  10 #define LIBCXX_TEST_SUPPORT_LOCALE_HELPERS_H
  11
  12 #include <string>
  13 #include "platform_support.h"
  14 #include "test_macros.h"
  15 #include "make_string.h"
  16
  17 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  18
  19 #include <cwctype>
  20
  21 #endif // TEST_HAS_NO_WIDE_CHARACTERS
  22
  23 namespace LocaleHelpers {
  24
  25 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  26
  27 std::wstring convert_thousands_sep(std::wstring const& in, wchar_t sep) {
  28   std::wstring out;
  29   bool seen_num_start = false;
  30   bool seen_decimal = false;
  31   for (unsigned i = 0; i < in.size(); ++i) {
  32     seen_decimal |= in[i] == L',';
  33     seen_num_start |= in[i] == L'-' || std::iswdigit(in[i]);
  34     if (seen_decimal || !seen_num_start || in[i] != L' ') {
  35       out.push_back(in[i]);
  36       continue;
  37     }
  38     assert(in[i] == L' ');
  39     out.push_back(sep);
  40   }
  41   return out;
  42 }
  43
  44 // GLIBC 2.27 and newer use U+202F NARROW NO-BREAK SPACE as a thousands separator.
  45 // This function converts the spaces in string inputs to U+202F if need
  46 // be. FreeBSD's locale data also uses U+202F, since 2018.
  47 // Windows uses U+00A0 NO-BREAK SPACE.
  48 std::wstring convert_thousands_sep_fr_FR(std::wstring const& in) {
  49 #if defined(_CS_GNU_LIBC_VERSION)
  50   if (glibc_version_less_than("2.27"))
  51     return in;
  52   else
  53     return convert_thousands_sep(in, L'\u202F');
  54 #elif defined(__FreeBSD__)
  55   return convert_thousands_sep(in, L'\u202F');
  56 #elif defined(_WIN32)
  57   return convert_thousands_sep(in, L'\u00A0');
  58 #else
  59   return in;
  60 #endif
  61 }
  62
  63 // GLIBC 2.27 uses U+202F NARROW NO-BREAK SPACE as a thousands separator.
  64 // FreeBSD, AIX and Windows use U+00A0 NO-BREAK SPACE.
  65 std::wstring convert_thousands_sep_ru_RU(std::wstring const& in) {
  66 #if defined(TEST_HAS_GLIBC)
  67   return convert_thousands_sep(in, L'\u202F');
  68 #  elif defined(__FreeBSD__) || defined(_WIN32) || defined(_AIX)
  69   return convert_thousands_sep(in, L'\u00A0');
  70 #  else
  71   return in;
  72 #  endif
  73 }
  74
  75 std::wstring negate_en_US(std::wstring s) {
  76 #if defined(_WIN32)
  77   return L"(" + s + L")";
  78 #else
  79   return L"-" + s;
  80 #endif
  81 }
  82
  83 #endif // TEST_HAS_NO_WIDE_CHARACTERS
  84
  85 std::string negate_en_US(std::string s) {
  86 #if defined(_WIN32)
  87   return "(" + s + ")";
  88 #else
  89   return "-" + s;
  90 #endif
  91 }
  92
  93 MultiStringType currency_symbol_ru_RU() {
  94 #if defined(_CS_GNU_LIBC_VERSION)
  95   if (glibc_version_less_than("2.24"))
  96     return MKSTR("\u0440\u0443\u0431");
  97   else
  98     return MKSTR("\u20BD"); // U+20BD RUBLE SIGN
  99 #elif defined(_WIN32) || defined(__FreeBSD__) || defined(_AIX)
 100   return MKSTR("\u20BD"); // U+20BD RUBLE SIGN
 101 #else
 102   return MKSTR("\u0440\u0443\u0431.");
 103 #endif
 104 }
 105
 106 MultiStringType currency_symbol_zh_CN() {
 107 #if defined(_WIN32)
 108   return MKSTR("\u00A5"); // U+00A5 YEN SIGN
 109 #else
 110   return MKSTR("\uFFE5"); // U+FFE5 FULLWIDTH YEN SIGN
 111 #endif
 112 }
 113
 114 } // namespace LocaleHelpers
 115
 116 #endif // LIBCXX_TEST_SUPPORT_LOCALE_HELPERS_H