1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <iomanip> 11 12 // quoted 13 14 #include <iomanip> 15 #include <sstream> 16 #include <experimental/string_view> 17 #include <cassert> 18 19 #include "test_macros.h" 20 21 #if TEST_STD_VER > 11 22 // quoted is C++14 only 23 24 bool is_skipws ( const std::istream *is ) { 25 return ( is->flags() & std::ios_base::skipws ) != 0; 26 } 27 28 29 bool is_skipws ( const std::wistream *is ) { 30 return ( is->flags() & std::ios_base::skipws ) != 0; 31 } 32 33 void round_trip ( const char *p ) { 34 std::stringstream ss; 35 bool skippingws = is_skipws ( &ss ); 36 std::experimental::string_view sv {p}; 37 38 ss << std::quoted(sv); 39 std::string s; 40 ss >> std::quoted(s); 41 assert ( s == sv ); 42 assert ( skippingws == is_skipws ( &ss )); 43 } 44 45 void round_trip_ws ( const char *p ) { 46 std::stringstream ss; 47 std::noskipws ( ss ); 48 bool skippingws = is_skipws ( &ss ); 49 std::experimental::string_view sv {p}; 50 51 ss << std::quoted(sv); 52 std::string s; 53 ss >> std::quoted(s); 54 assert ( s == sv ); 55 assert ( skippingws == is_skipws ( &ss )); 56 } 57 58 void round_trip_d ( const char *p, char delim ) { 59 std::stringstream ss; 60 std::experimental::string_view sv {p}; 61 62 ss << std::quoted(sv, delim); 63 std::string s; 64 ss >> std::quoted(s, delim); 65 assert ( s == sv ); 66 } 67 68 void round_trip_e ( const char *p, char escape ) { 69 std::stringstream ss; 70 std::experimental::string_view sv {p}; 71 72 ss << std::quoted(sv, '"', escape ); 73 std::string s; 74 ss >> std::quoted(s, '"', escape ); 75 assert ( s == sv ); 76 } 77 78 79 80 std::string quote ( const char *p, char delim='"', char escape='\\' ) { 81 std::stringstream ss; 82 ss << std::quoted(p, delim, escape); 83 std::string s; 84 ss >> s; // no quote 85 return s; 86 } 87 88 std::string unquote ( const char *p, char delim='"', char escape='\\' ) { 89 std::stringstream ss; 90 ss << p; 91 std::string s; 92 ss >> std::quoted(s, delim, escape); 93 return s; 94 } 95 96 97 void round_trip ( const wchar_t *p ) { 98 std::wstringstream ss; 99 bool skippingws = is_skipws ( &ss ); 100 std::experimental::wstring_view sv {p}; 101 102 ss << std::quoted(sv); 103 std::wstring s; 104 ss >> std::quoted(s); 105 assert ( s == sv ); 106 assert ( skippingws == is_skipws ( &ss )); 107 } 108 109 110 void round_trip_ws ( const wchar_t *p ) { 111 std::wstringstream ss; 112 std::noskipws ( ss ); 113 bool skippingws = is_skipws ( &ss ); 114 std::experimental::wstring_view sv {p}; 115 116 ss << std::quoted(sv); 117 std::wstring s; 118 ss >> std::quoted(s); 119 assert ( s == sv ); 120 assert ( skippingws == is_skipws ( &ss )); 121 } 122 123 void round_trip_d ( const wchar_t *p, wchar_t delim ) { 124 std::wstringstream ss; 125 std::experimental::wstring_view sv {p}; 126 127 ss << std::quoted(sv, delim); 128 std::wstring s; 129 ss >> std::quoted(s, delim); 130 assert ( s == sv ); 131 } 132 133 void round_trip_e ( const wchar_t *p, wchar_t escape ) { 134 std::wstringstream ss; 135 std::experimental::wstring_view sv {p}; 136 137 ss << std::quoted(sv, wchar_t('"'), escape ); 138 std::wstring s; 139 ss >> std::quoted(s, wchar_t('"'), escape ); 140 assert ( s == sv ); 141 } 142 143 144 std::wstring quote ( const wchar_t *p, wchar_t delim='"', wchar_t escape='\\' ) { 145 std::wstringstream ss; 146 std::experimental::wstring_view sv {p}; 147 148 ss << std::quoted(sv, delim, escape); 149 std::wstring s; 150 ss >> s; // no quote 151 return s; 152 } 153 154 std::wstring unquote ( const wchar_t *p, wchar_t delim='"', wchar_t escape='\\' ) { 155 std::wstringstream ss; 156 std::experimental::wstring_view sv {p}; 157 158 ss << sv; 159 std::wstring s; 160 ss >> std::quoted(s, delim, escape); 161 return s; 162 } 163 164 int main() 165 { 166 round_trip ( "" ); 167 round_trip_ws ( "" ); 168 round_trip_d ( "", 'q' ); 169 round_trip_e ( "", 'q' ); 170 171 round_trip ( L"" ); 172 round_trip_ws ( L"" ); 173 round_trip_d ( L"", 'q' ); 174 round_trip_e ( L"", 'q' ); 175 176 round_trip ( "Hi" ); 177 round_trip_ws ( "Hi" ); 178 round_trip_d ( "Hi", '!' ); 179 round_trip_e ( "Hi", '!' ); 180 assert ( quote ( "Hi", '!' ) == "!Hi!" ); 181 assert ( quote ( "Hi!", '!' ) == R"(!Hi\!!)" ); 182 183 round_trip ( L"Hi" ); 184 round_trip_ws ( L"Hi" ); 185 round_trip_d ( L"Hi", '!' ); 186 round_trip_e ( L"Hi", '!' ); 187 assert ( quote ( L"Hi", '!' ) == L"!Hi!" ); 188 assert ( quote ( L"Hi!", '!' ) == LR"(!Hi\!!)" ); 189 190 round_trip ( "Hi Mom" ); 191 round_trip_ws ( "Hi Mom" ); 192 round_trip ( L"Hi Mom" ); 193 round_trip_ws ( L"Hi Mom" ); 194 195 assert ( quote ( "" ) == "\"\"" ); 196 assert ( quote ( L"" ) == L"\"\"" ); 197 assert ( quote ( "a" ) == "\"a\"" ); 198 assert ( quote ( L"a" ) == L"\"a\"" ); 199 200 // missing end quote - must not hang 201 assert ( unquote ( "\"abc" ) == "abc" ); 202 assert ( unquote ( L"\"abc" ) == L"abc" ); 203 204 assert ( unquote ( "abc" ) == "abc" ); // no delimiter 205 assert ( unquote ( L"abc" ) == L"abc" ); // no delimiter 206 assert ( unquote ( "abc def" ) == "abc" ); // no delimiter 207 assert ( unquote ( L"abc def" ) == L"abc" ); // no delimiter 208 209 assert ( unquote ( "" ) == "" ); // nothing there 210 assert ( unquote ( L"" ) == L"" ); // nothing there 211 } 212 #else 213 int main() {} 214 #endif 215
