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1 // Copyright 2005, Google Inc. |
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2 // All rights reserved. |
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3 // |
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4 // Redistribution and use in source and binary forms, with or without |
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5 // modification, are permitted provided that the following conditions are |
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6 // met: |
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7 // |
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8 // * Redistributions of source code must retain the above copyright |
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9 // notice, this list of conditions and the following disclaimer. |
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10 // * Redistributions in binary form must reproduce the above |
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11 // copyright notice, this list of conditions and the following disclaimer |
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12 // in the documentation and/or other materials provided with the |
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13 // distribution. |
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14 // * Neither the name of Google Inc. nor the names of its |
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15 // contributors may be used to endorse or promote products derived from |
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16 // this software without specific prior written permission. |
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17 // |
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18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 // |
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30 // Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee) |
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31 // |
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32 // The Google C++ Testing Framework (Google Test) |
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33 // |
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34 // This header file declares the String class and functions used internally by |
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35 // Google Test. They are subject to change without notice. They should not used |
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36 // by code external to Google Test. |
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37 // |
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38 // This header file is #included by <gtest/internal/gtest-internal.h>. |
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39 // It should not be #included by other files. |
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40 |
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41 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_ |
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42 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_ |
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43 |
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44 #ifdef __BORLANDC__ |
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45 // string.h is not guaranteed to provide strcpy on C++ Builder. |
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46 # include <mem.h> |
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47 #endif |
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48 |
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49 #include <string.h> |
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50 #include <string> |
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51 |
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52 #include "gtest/internal/gtest-port.h" |
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53 |
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54 namespace testing { |
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55 namespace internal { |
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56 |
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57 // String - an abstract class holding static string utilities. |
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58 class GTEST_API_ String { |
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59 public: |
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60 // Static utility methods |
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61 |
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62 // Clones a 0-terminated C string, allocating memory using new. The |
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63 // caller is responsible for deleting the return value using |
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64 // delete[]. Returns the cloned string, or NULL if the input is |
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65 // NULL. |
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66 // |
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67 // This is different from strdup() in string.h, which allocates |
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68 // memory using malloc(). |
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69 static const char* CloneCString(const char* c_str); |
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70 |
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71 #if GTEST_OS_WINDOWS_MOBILE |
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72 // Windows CE does not have the 'ANSI' versions of Win32 APIs. To be |
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73 // able to pass strings to Win32 APIs on CE we need to convert them |
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74 // to 'Unicode', UTF-16. |
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75 |
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76 // Creates a UTF-16 wide string from the given ANSI string, allocating |
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77 // memory using new. The caller is responsible for deleting the return |
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78 // value using delete[]. Returns the wide string, or NULL if the |
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79 // input is NULL. |
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80 // |
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81 // The wide string is created using the ANSI codepage (CP_ACP) to |
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82 // match the behaviour of the ANSI versions of Win32 calls and the |
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83 // C runtime. |
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84 static LPCWSTR AnsiToUtf16(const char* c_str); |
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85 |
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86 // Creates an ANSI string from the given wide string, allocating |
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87 // memory using new. The caller is responsible for deleting the return |
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88 // value using delete[]. Returns the ANSI string, or NULL if the |
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89 // input is NULL. |
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90 // |
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91 // The returned string is created using the ANSI codepage (CP_ACP) to |
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92 // match the behaviour of the ANSI versions of Win32 calls and the |
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93 // C runtime. |
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94 static const char* Utf16ToAnsi(LPCWSTR utf16_str); |
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95 #endif |
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96 |
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97 // Compares two C strings. Returns true iff they have the same content. |
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98 // |
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99 // Unlike strcmp(), this function can handle NULL argument(s). A |
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100 // NULL C string is considered different to any non-NULL C string, |
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101 // including the empty string. |
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102 static bool CStringEquals(const char* lhs, const char* rhs); |
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103 |
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104 // Converts a wide C string to a String using the UTF-8 encoding. |
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105 // NULL will be converted to "(null)". If an error occurred during |
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106 // the conversion, "(failed to convert from wide string)" is |
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107 // returned. |
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108 static std::string ShowWideCString(const wchar_t* wide_c_str); |
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109 |
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110 // Compares two wide C strings. Returns true iff they have the same |
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111 // content. |
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112 // |
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113 // Unlike wcscmp(), this function can handle NULL argument(s). A |
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114 // NULL C string is considered different to any non-NULL C string, |
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115 // including the empty string. |
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116 static bool WideCStringEquals(const wchar_t* lhs, const wchar_t* rhs); |
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117 |
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118 // Compares two C strings, ignoring case. Returns true iff they |
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119 // have the same content. |
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120 // |
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121 // Unlike strcasecmp(), this function can handle NULL argument(s). |
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122 // A NULL C string is considered different to any non-NULL C string, |
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123 // including the empty string. |
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124 static bool CaseInsensitiveCStringEquals(const char* lhs, |
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125 const char* rhs); |
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126 |
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127 // Compares two wide C strings, ignoring case. Returns true iff they |
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128 // have the same content. |
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129 // |
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130 // Unlike wcscasecmp(), this function can handle NULL argument(s). |
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131 // A NULL C string is considered different to any non-NULL wide C string, |
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132 // including the empty string. |
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133 // NB: The implementations on different platforms slightly differ. |
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134 // On windows, this method uses _wcsicmp which compares according to LC_CTYPE |
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135 // environment variable. On GNU platform this method uses wcscasecmp |
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136 // which compares according to LC_CTYPE category of the current locale. |
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137 // On MacOS X, it uses towlower, which also uses LC_CTYPE category of the |
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138 // current locale. |
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139 static bool CaseInsensitiveWideCStringEquals(const wchar_t* lhs, |
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140 const wchar_t* rhs); |
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141 |
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142 // Returns true iff the given string ends with the given suffix, ignoring |
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143 // case. Any string is considered to end with an empty suffix. |
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144 static bool EndsWithCaseInsensitive( |
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145 const std::string& str, const std::string& suffix); |
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146 |
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147 // Formats an int value as "%02d". |
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148 static std::string FormatIntWidth2(int value); // "%02d" for width == 2 |
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149 |
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150 // Formats an int value as "%X". |
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151 static std::string FormatHexInt(int value); |
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152 |
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153 // Formats a byte as "%02X". |
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154 static std::string FormatByte(unsigned char value); |
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155 |
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156 private: |
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157 String(); // Not meant to be instantiated. |
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158 }; // class String |
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159 |
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160 // Gets the content of the stringstream's buffer as an std::string. Each '\0' |
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161 // character in the buffer is replaced with "\\0". |
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162 GTEST_API_ std::string StringStreamToString(::std::stringstream* stream); |
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163 |
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164 } // namespace internal |
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165 } // namespace testing |
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166 |
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167 #endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_ |