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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #ifndef _STLP_STRING_IO_C |
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21 #define _STLP_STRING_IO_C |
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22 |
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23 #ifndef _STLP_STRING_IO_H |
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24 # include <stl/_string_io.h> |
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25 #endif |
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26 |
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27 #ifndef _STLP_INTERNAL_CTYPE_H |
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28 # include <stl/_ctype.h> |
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29 #endif |
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30 |
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31 # ifdef _STLP_DEBUG |
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32 # define basic_string _Nondebug_string |
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33 # endif |
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34 |
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35 _STLP_BEGIN_NAMESPACE |
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36 |
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37 # if defined (_STLP_OWN_IOSTREAMS) |
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38 # define _STLP_USING_IO |
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39 # else |
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40 # define _STLP_USING_IO _STLP_USING_VENDOR_STD |
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41 # endif |
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42 |
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43 #if defined (_STLP_USE_NEW_IOSTREAMS) |
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44 |
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45 template <class _CharT, class _Traits> |
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46 bool _STLP_CALL |
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47 __stlp_string_fill(basic_ostream<_CharT, _Traits>& __os, |
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48 basic_streambuf<_CharT, _Traits>* __buf, |
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49 size_t __n) |
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50 { |
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51 _CharT __f = __os.fill(); |
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52 size_t __i; |
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53 bool __ok = true; |
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54 |
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55 for (__i = 0; __i < __n; ++__i) |
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56 __ok = __ok && !_Traits::eq_int_type(__buf->sputc(__f), _Traits::eof()); |
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57 return __ok; |
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58 } |
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59 |
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60 template <class _CharT, class _Traits, class _Alloc> |
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61 basic_ostream<_CharT, _Traits>& _STLP_CALL |
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62 operator<<(basic_ostream<_CharT, _Traits>& __os, |
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63 const basic_string<_CharT,_Traits,_Alloc>& __s) |
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64 { |
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65 |
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66 _STLP_USING_IO |
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67 typedef basic_ostream<_CharT, _Traits> __ostream; |
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68 typename __ostream::sentry __sentry(__os); |
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69 bool __ok = false; |
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70 |
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71 if (__sentry) { |
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72 __ok = true; |
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73 size_t __n = __s.size(); |
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74 size_t __pad_len = 0; |
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75 const bool __left = (__os.flags() & __ostream::left) != 0; |
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76 const size_t __w = __os.width(0); |
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77 basic_streambuf<_CharT, _Traits>* __buf = __os.rdbuf(); |
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78 |
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79 if (__n < __w) { |
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80 __pad_len = __w - __n; |
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81 } |
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82 |
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83 if (!__left) |
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84 __ok = __stlp_string_fill(__os, __buf, __pad_len); |
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85 |
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86 __ok = __ok && (__buf->sputn(__s.data(), streamsize(__n)) == streamsize(__n)); |
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87 |
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88 if (__left) |
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89 __ok = __ok && __stlp_string_fill(__os, __buf, __pad_len); |
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90 } |
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91 |
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92 if (!__ok) |
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93 __os.setstate(__ostream::failbit); |
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94 |
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95 return __os; |
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96 } |
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97 |
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98 template <class _CharT, class _Traits, class _Alloc> |
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99 basic_istream<_CharT, _Traits>& _STLP_CALL |
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100 operator>>(basic_istream<_CharT, _Traits>& __is, |
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101 basic_string<_CharT,_Traits, _Alloc>& __s) |
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102 { |
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103 _STLP_USING_IO |
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104 typedef basic_istream<_CharT, _Traits> __istream; |
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105 typename __istream::sentry __sentry(__is); |
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106 |
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107 if (__sentry) { |
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108 basic_streambuf<_CharT, _Traits>* __buf = __is.rdbuf(); |
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109 typedef ctype<_CharT> _C_type; |
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110 |
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111 #ifdef _STLP_OWN_IOSTREAMS |
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112 // const _C_type& _Ctype = use_facet<_C_type>(__loc); |
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113 const _C_type& _Ctype = *(const _C_type*)__is._M_ctype_facet(); |
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114 #else |
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115 # if defined (_STLP_MSVC) && (_STLP_MSVC <= 1200 ) || defined (__ICL) |
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116 const locale& __loc = __is.getloc(); |
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117 const _C_type& _Ctype = use_facet(__loc , ( _C_type * ) 0, true); |
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118 # elif defined (__SUNPRO_CC) |
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119 const locale& __loc = __is.getloc(); |
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120 const _C_type& _Ctype = use_facet(__loc , ( _C_type * ) 0); |
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121 # else |
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122 const locale& __loc = __is.getloc(); |
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123 const _C_type& _Ctype = use_facet<_C_type>(__loc); |
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124 # endif |
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125 #endif |
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126 __s.clear(); |
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127 size_t __n = __is.width(0); |
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128 if (__n == 0) |
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129 __n = __STATIC_CAST(size_t,-1); |
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130 else |
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131 __s.reserve(__n); |
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132 |
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133 |
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134 while (__n-- > 0) { |
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135 typename _Traits::int_type __c1 = __buf->sbumpc(); |
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136 if (_Traits::eq_int_type(__c1, _Traits::eof())) { |
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137 __is.setstate(__istream::eofbit); |
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138 break; |
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139 } |
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140 else { |
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141 _CharT __c = _Traits::to_char_type(__c1); |
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142 |
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143 if (_Ctype.is(_C_type::space, __c)) { |
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144 if (_Traits::eq_int_type(__buf->sputbackc(__c), _Traits::eof())) |
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145 __is.setstate(__istream::failbit); |
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146 break; |
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147 } |
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148 #ifdef __SYMBIAN32__ |
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149 else if (__c == '\b') { |
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150 __s.pop_back(); |
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151 } |
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152 #endif |
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153 else |
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154 __s.push_back(__c); |
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155 } |
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156 } |
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157 |
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158 // If we have read no characters, then set failbit. |
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159 if (__s.size() == 0) |
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160 __is.setstate(__istream::failbit); |
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161 } |
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162 else |
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163 __is.setstate(__istream::failbit); |
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164 |
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165 return __is; |
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166 } |
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167 |
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168 template <class _CharT, class _Traits, class _Alloc> |
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169 basic_istream<_CharT, _Traits>& _STLP_CALL |
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170 getline(basic_istream<_CharT, _Traits>& __is, |
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171 basic_string<_CharT,_Traits,_Alloc>& __s, |
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172 _CharT __delim) |
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173 { |
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174 _STLP_USING_IO |
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175 typedef basic_istream<_CharT, _Traits> __istream; |
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176 size_t __nread = 0; |
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177 typename basic_istream<_CharT, _Traits>::sentry __sentry(__is, true); |
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178 if (__sentry) { |
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179 basic_streambuf<_CharT, _Traits>* __buf = __is.rdbuf(); |
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180 __s.clear(); |
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181 |
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182 while (__nread < __s.max_size()) { |
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183 int __c1 = __buf->sbumpc(); |
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184 if (_Traits::eq_int_type(__c1, _Traits::eof())) { |
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185 __is.setstate(__istream::eofbit); |
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186 break; |
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187 } |
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188 else { |
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189 ++__nread; |
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190 _CharT __c = _Traits::to_char_type(__c1); |
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191 if (!_Traits::eq(__c, __delim)) |
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192 __s.push_back(__c); |
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193 else |
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194 break; // Character is extracted but not appended. |
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195 } |
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196 } |
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197 } |
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198 if (__nread == 0 || __nread >= __s.max_size()) |
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199 __is.setstate(__istream::failbit); |
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200 |
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201 return __is; |
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202 } |
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203 |
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204 #elif ! defined ( _STLP_USE_NO_IOSTREAMS ) |
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205 |
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206 // (reg) For Watcom IO, _OSTREAM_DLL tells if ostream class is in .exe or in .dll |
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207 |
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208 template <class _CharT, class _Traits, class _Alloc> |
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209 _OSTREAM_DLL& _STLP_CALL operator<<(_OSTREAM_DLL& __os, |
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210 const basic_string<_CharT,_Traits,_Alloc>& __s) |
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211 { |
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212 _STLP_USING_IO |
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213 streambuf* __buf = __os.rdbuf(); |
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214 if (__buf) { |
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215 size_t __n = __s.size(); |
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216 size_t __pad_len = 0; |
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217 const bool __left = (__os.flags() & ios::left) !=0; |
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218 const size_t __w = __os.width(); |
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219 |
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220 if (__n < __w) { |
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221 __pad_len = __w - __n; |
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222 } |
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223 |
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224 if (!__left) |
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225 __stlp_string_fill(__os, __buf, __pad_len); |
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226 |
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227 const size_t __nwritten = __buf->sputn(__s.data(), __n); |
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228 |
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229 if (__left) |
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230 __stlp_string_fill(__os, __buf, __pad_len); |
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231 |
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232 if (__nwritten != __n) |
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233 __os.clear(__os.rdstate() | ios::failbit); |
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234 |
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235 __os.width(0); |
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236 } |
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237 else |
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238 __os.clear(__os.rdstate() | ios::badbit); |
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239 |
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240 return __os; |
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241 } |
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242 |
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243 template <class _CharT, class _Traits, class _Alloc> |
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244 _ISTREAM_DLL& _STLP_CALL operator>>(_ISTREAM_DLL& __is, basic_string<_CharT,_Traits,_Alloc>& __s) |
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245 { |
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246 _STLP_USING_IO |
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247 if (!__is) |
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248 return __is; |
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249 |
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250 streambuf* __buf = __is.rdbuf(); |
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251 if (__buf) { |
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252 |
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253 if (__is.flags() & ios::skipws) { |
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254 // _CharT __c; |
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255 int __c; |
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256 do { |
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257 __c = __buf->sbumpc(); |
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258 } |
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259 while (__c != EOF && isspace((unsigned char)__c)); |
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260 |
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261 if (__c == EOF) { |
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262 __is.clear(__is.rdstate() | ios::eofbit | ios::failbit); |
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263 } |
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264 else { |
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265 if (__buf->sputbackc(__c) == EOF) |
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266 __is.clear(__is.rdstate() | ios::failbit); |
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267 } |
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268 } |
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269 |
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270 // If we arrive at end of file (or fail for some other reason) while |
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271 // still discarding whitespace, then we don't try to read the string. |
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272 if (__is) { |
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273 __s.clear(); |
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274 |
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275 size_t __n = __is.width(); |
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276 if (__n == 0) |
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277 __n = __STATIC_CAST(size_t,-1); |
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278 else |
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279 __s.reserve(__n); |
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280 |
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281 while (__n-- > 0) { |
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282 int __c1 = __buf->sbumpc(); |
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283 if (__c1 == EOF) { |
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284 __is.clear(__is.rdstate() | ios::eofbit); |
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285 break; |
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286 } |
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287 else { |
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288 _CharT __c = _Traits::to_char_type(__c1); |
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289 |
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290 if (isspace((unsigned char) __c)) { |
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291 if (__buf->sputbackc(__c) == EOF) |
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292 __is.clear(__is.rdstate() | ios::failbit); |
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293 break; |
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294 } |
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295 else |
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296 __s.push_back(__c); |
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297 } |
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298 } |
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299 |
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300 // If we have read no characters, then set failbit. |
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301 if (__s.size() == 0) |
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302 __is.clear(__is.rdstate() | ios::failbit); |
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303 } |
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304 |
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305 __is.width(0); |
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306 } |
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307 else // We have no streambuf. |
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308 __is.clear(__is.rdstate() | ios::badbit); |
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309 |
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310 return __is; |
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311 } |
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312 |
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313 template <class _CharT, class _Traits, class _Alloc> |
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314 _ISTREAM_DLL& _STLP_CALL getline(_ISTREAM_DLL& __is, |
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315 basic_string<_CharT,_Traits,_Alloc>& __s, |
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316 _CharT __delim) |
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317 { |
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318 _STLP_USING_IO |
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319 streambuf* __buf = __is.rdbuf(); |
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320 if (__buf) { |
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321 size_t __nread = 0; |
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322 if (__is) { |
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323 __s.clear(); |
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324 |
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325 while (__nread < __s.max_size()) { |
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326 int __c1 = __buf->sbumpc(); |
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327 if (__c1 == EOF) { |
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328 __is.clear(__is.rdstate() | ios::eofbit); |
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329 break; |
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330 } |
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331 else { |
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332 ++__nread; |
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333 _CharT __c = _Traits::to_char_type(__c1); |
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334 if (!_Traits::eq(__c, __delim)) |
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335 __s.push_back(__c); |
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336 else |
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337 break; // Character is extracted but not appended. |
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338 } |
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339 } |
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340 } |
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341 |
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342 if (__nread == 0 || __nread >= __s.max_size()) |
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343 __is.clear(__is.rdstate() | ios::failbit); |
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344 } |
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345 else |
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346 __is.clear(__is.rdstate() | ios::badbit); |
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347 |
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348 return __is; |
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349 } |
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350 |
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351 # endif /* _STLP_NEW_IOSTREAMS */ |
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352 |
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353 _STLP_END_NAMESPACE |
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354 |
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355 // # undef _STLP_USING_IO |
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356 # undef basic_string |
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357 |
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358 #endif |