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1 /* Portion Copyright © 2008-09 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. */ |
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2 |
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3 |
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4 #ifndef _STLP_STRING_IO_C |
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5 #define _STLP_STRING_IO_C |
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6 |
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7 #ifndef _STLP_STRING_IO_H |
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8 # include <stl/_string_io.h> |
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9 #endif |
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10 |
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11 #ifndef _STLP_INTERNAL_CTYPE_H |
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12 # include <stl/_ctype.h> |
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13 #endif |
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14 |
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15 # ifdef _STLP_DEBUG |
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16 # define basic_string _Nondebug_string |
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17 # endif |
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18 |
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19 _STLP_BEGIN_NAMESPACE |
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20 |
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21 # if defined (_STLP_OWN_IOSTREAMS) |
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22 # define _STLP_USING_IO |
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23 # else |
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24 # define _STLP_USING_IO _STLP_USING_VENDOR_STD |
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25 # endif |
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26 |
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27 #if defined (_STLP_USE_NEW_IOSTREAMS) |
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28 |
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29 template <class _CharT, class _Traits> |
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30 bool _STLP_CALL |
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31 __stlp_string_fill(basic_ostream<_CharT, _Traits>& __os, |
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32 basic_streambuf<_CharT, _Traits>* __buf, |
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33 size_t __n) |
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34 { |
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35 _CharT __f = __os.fill(); |
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36 size_t __i; |
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37 bool __ok = true; |
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38 |
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39 for (__i = 0; __i < __n; ++__i) |
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40 __ok = __ok && !_Traits::eq_int_type(__buf->sputc(__f), _Traits::eof()); |
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41 return __ok; |
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42 } |
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43 |
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44 template <class _CharT, class _Traits, class _Alloc> |
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45 basic_ostream<_CharT, _Traits>& _STLP_CALL |
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46 operator<<(basic_ostream<_CharT, _Traits>& __os, |
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47 const basic_string<_CharT,_Traits,_Alloc>& __s) |
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48 { |
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49 |
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50 _STLP_USING_IO |
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51 typedef basic_ostream<_CharT, _Traits> __ostream; |
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52 typename __ostream::sentry __sentry(__os); |
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53 bool __ok = false; |
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54 |
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55 if (__sentry) { |
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56 __ok = true; |
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57 size_t __n = __s.size(); |
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58 size_t __pad_len = 0; |
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59 const bool __left = (__os.flags() & __ostream::left) != 0; |
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60 const size_t __w = __os.width(0); |
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61 basic_streambuf<_CharT, _Traits>* __buf = __os.rdbuf(); |
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62 |
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63 if (__n < __w) { |
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64 __pad_len = __w - __n; |
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65 } |
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66 |
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67 if (!__left) |
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68 __ok = __stlp_string_fill(__os, __buf, __pad_len); |
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69 |
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70 __ok = __ok && (__buf->sputn(__s.data(), streamsize(__n)) == streamsize(__n)); |
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71 |
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72 if (__left) |
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73 __ok = __ok && __stlp_string_fill(__os, __buf, __pad_len); |
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74 } |
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75 |
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76 if (!__ok) |
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77 __os.setstate(__ostream::failbit); |
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78 |
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79 return __os; |
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80 } |
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81 |
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82 template <class _CharT, class _Traits, class _Alloc> |
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83 basic_istream<_CharT, _Traits>& _STLP_CALL |
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84 operator>>(basic_istream<_CharT, _Traits>& __is, |
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85 basic_string<_CharT,_Traits, _Alloc>& __s) |
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86 { |
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87 _STLP_USING_IO |
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88 typedef basic_istream<_CharT, _Traits> __istream; |
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89 typename __istream::sentry __sentry(__is); |
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90 |
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91 if (__sentry) { |
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92 basic_streambuf<_CharT, _Traits>* __buf = __is.rdbuf(); |
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93 typedef ctype<_CharT> _C_type; |
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94 |
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95 #ifdef _STLP_OWN_IOSTREAMS |
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96 // const _C_type& _Ctype = use_facet<_C_type>(__loc); |
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97 const _C_type& _Ctype = *(const _C_type*)__is._M_ctype_facet(); |
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98 #else |
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99 # if defined (_STLP_MSVC) && (_STLP_MSVC <= 1200 ) || defined (__ICL) |
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100 const locale& __loc = __is.getloc(); |
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101 const _C_type& _Ctype = use_facet(__loc , ( _C_type * ) 0, true); |
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102 # elif defined (__SUNPRO_CC) |
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103 const locale& __loc = __is.getloc(); |
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104 const _C_type& _Ctype = use_facet(__loc , ( _C_type * ) 0); |
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105 # else |
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106 const locale& __loc = __is.getloc(); |
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107 const _C_type& _Ctype = use_facet<_C_type>(__loc); |
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108 # endif |
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109 #endif |
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110 __s.clear(); |
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111 size_t __n = __is.width(0); |
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112 if (__n == 0) |
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113 __n = __STATIC_CAST(size_t,-1); |
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114 else |
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115 __s.reserve(__n); |
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116 |
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117 |
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118 while (__n-- > 0) { |
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119 typename _Traits::int_type __c1 = __buf->sbumpc(); |
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120 if (_Traits::eq_int_type(__c1, _Traits::eof())) { |
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121 __is.setstate(__istream::eofbit); |
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122 break; |
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123 } |
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124 else { |
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125 _CharT __c = _Traits::to_char_type(__c1); |
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126 |
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127 if (_Ctype.is(_C_type::space, __c)) { |
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128 if (_Traits::eq_int_type(__buf->sputbackc(__c), _Traits::eof())) |
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129 __is.setstate(__istream::failbit); |
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130 break; |
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131 } |
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132 #ifdef __SYMBIAN32__ |
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133 else if (__c == '\b') { |
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134 __s.pop_back(); |
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135 } |
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136 #endif |
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137 else |
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138 __s.push_back(__c); |
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139 } |
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140 } |
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141 |
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142 // If we have read no characters, then set failbit. |
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143 if (__s.size() == 0) |
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144 __is.setstate(__istream::failbit); |
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145 } |
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146 else |
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147 __is.setstate(__istream::failbit); |
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148 |
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149 return __is; |
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150 } |
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151 |
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152 template <class _CharT, class _Traits, class _Alloc> |
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153 basic_istream<_CharT, _Traits>& _STLP_CALL |
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154 getline(basic_istream<_CharT, _Traits>& __is, |
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155 basic_string<_CharT,_Traits,_Alloc>& __s, |
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156 _CharT __delim) |
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157 { |
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158 _STLP_USING_IO |
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159 typedef basic_istream<_CharT, _Traits> __istream; |
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160 size_t __nread = 0; |
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161 typename basic_istream<_CharT, _Traits>::sentry __sentry(__is, true); |
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162 if (__sentry) { |
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163 basic_streambuf<_CharT, _Traits>* __buf = __is.rdbuf(); |
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164 __s.clear(); |
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165 |
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166 while (__nread < __s.max_size()) { |
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167 int __c1 = __buf->sbumpc(); |
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168 if (_Traits::eq_int_type(__c1, _Traits::eof())) { |
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169 __is.setstate(__istream::eofbit); |
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170 break; |
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171 } |
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172 else { |
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173 ++__nread; |
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174 _CharT __c = _Traits::to_char_type(__c1); |
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175 if (!_Traits::eq(__c, __delim)) |
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176 __s.push_back(__c); |
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177 else |
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178 break; // Character is extracted but not appended. |
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179 } |
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180 } |
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181 } |
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182 if (__nread == 0 || __nread >= __s.max_size()) |
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183 __is.setstate(__istream::failbit); |
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184 |
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185 return __is; |
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186 } |
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187 |
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188 #elif ! defined ( _STLP_USE_NO_IOSTREAMS ) |
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189 |
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190 // (reg) For Watcom IO, _OSTREAM_DLL tells if ostream class is in .exe or in .dll |
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191 |
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192 template <class _CharT, class _Traits, class _Alloc> |
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193 _OSTREAM_DLL& _STLP_CALL operator<<(_OSTREAM_DLL& __os, |
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194 const basic_string<_CharT,_Traits,_Alloc>& __s) |
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195 { |
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196 _STLP_USING_IO |
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197 streambuf* __buf = __os.rdbuf(); |
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198 if (__buf) { |
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199 size_t __n = __s.size(); |
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200 size_t __pad_len = 0; |
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201 const bool __left = (__os.flags() & ios::left) !=0; |
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202 const size_t __w = __os.width(); |
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203 |
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204 if (__n < __w) { |
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205 __pad_len = __w - __n; |
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206 } |
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207 |
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208 if (!__left) |
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209 __stlp_string_fill(__os, __buf, __pad_len); |
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210 |
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211 const size_t __nwritten = __buf->sputn(__s.data(), __n); |
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212 |
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213 if (__left) |
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214 __stlp_string_fill(__os, __buf, __pad_len); |
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215 |
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216 if (__nwritten != __n) |
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217 __os.clear(__os.rdstate() | ios::failbit); |
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218 |
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219 __os.width(0); |
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220 } |
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221 else |
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222 __os.clear(__os.rdstate() | ios::badbit); |
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223 |
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224 return __os; |
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225 } |
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226 |
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227 template <class _CharT, class _Traits, class _Alloc> |
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228 _ISTREAM_DLL& _STLP_CALL operator>>(_ISTREAM_DLL& __is, basic_string<_CharT,_Traits,_Alloc>& __s) |
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229 { |
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230 _STLP_USING_IO |
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231 if (!__is) |
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232 return __is; |
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233 |
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234 streambuf* __buf = __is.rdbuf(); |
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235 if (__buf) { |
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236 |
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237 if (__is.flags() & ios::skipws) { |
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238 // _CharT __c; |
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239 int __c; |
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240 do { |
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241 __c = __buf->sbumpc(); |
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242 } |
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243 while (__c != EOF && isspace((unsigned char)__c)); |
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244 |
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245 if (__c == EOF) { |
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246 __is.clear(__is.rdstate() | ios::eofbit | ios::failbit); |
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247 } |
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248 else { |
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249 if (__buf->sputbackc(__c) == EOF) |
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250 __is.clear(__is.rdstate() | ios::failbit); |
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251 } |
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252 } |
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253 |
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254 // If we arrive at end of file (or fail for some other reason) while |
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255 // still discarding whitespace, then we don't try to read the string. |
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256 if (__is) { |
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257 __s.clear(); |
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258 |
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259 size_t __n = __is.width(); |
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260 if (__n == 0) |
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261 __n = __STATIC_CAST(size_t,-1); |
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262 else |
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263 __s.reserve(__n); |
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264 |
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265 while (__n-- > 0) { |
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266 int __c1 = __buf->sbumpc(); |
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267 if (__c1 == EOF) { |
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268 __is.clear(__is.rdstate() | ios::eofbit); |
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269 break; |
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270 } |
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271 else { |
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272 _CharT __c = _Traits::to_char_type(__c1); |
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273 |
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274 if (isspace((unsigned char) __c)) { |
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275 if (__buf->sputbackc(__c) == EOF) |
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276 __is.clear(__is.rdstate() | ios::failbit); |
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277 break; |
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278 } |
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279 else |
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280 __s.push_back(__c); |
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281 } |
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282 } |
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283 |
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284 // If we have read no characters, then set failbit. |
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285 if (__s.size() == 0) |
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286 __is.clear(__is.rdstate() | ios::failbit); |
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287 } |
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288 |
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289 __is.width(0); |
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290 } |
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291 else // We have no streambuf. |
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292 __is.clear(__is.rdstate() | ios::badbit); |
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293 |
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294 return __is; |
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295 } |
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296 |
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297 template <class _CharT, class _Traits, class _Alloc> |
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298 _ISTREAM_DLL& _STLP_CALL getline(_ISTREAM_DLL& __is, |
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299 basic_string<_CharT,_Traits,_Alloc>& __s, |
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300 _CharT __delim) |
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301 { |
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302 _STLP_USING_IO |
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303 streambuf* __buf = __is.rdbuf(); |
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304 if (__buf) { |
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305 size_t __nread = 0; |
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306 if (__is) { |
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307 __s.clear(); |
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308 |
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309 while (__nread < __s.max_size()) { |
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310 int __c1 = __buf->sbumpc(); |
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311 if (__c1 == EOF) { |
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312 __is.clear(__is.rdstate() | ios::eofbit); |
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313 break; |
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314 } |
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315 else { |
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316 ++__nread; |
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317 _CharT __c = _Traits::to_char_type(__c1); |
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318 if (!_Traits::eq(__c, __delim)) |
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319 __s.push_back(__c); |
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320 else |
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321 break; // Character is extracted but not appended. |
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322 } |
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323 } |
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324 } |
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325 |
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326 if (__nread == 0 || __nread >= __s.max_size()) |
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327 __is.clear(__is.rdstate() | ios::failbit); |
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328 } |
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329 else |
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330 __is.clear(__is.rdstate() | ios::badbit); |
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331 |
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332 return __is; |
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333 } |
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334 |
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335 # endif /* _STLP_NEW_IOSTREAMS */ |
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336 |
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337 _STLP_END_NAMESPACE |
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338 |
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339 // # undef _STLP_USING_IO |
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340 # undef basic_string |
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341 |
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342 #endif |