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1 // Boost string_algo library case_conv.hpp header file ---------------------------//
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2
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3 // Copyright Pavol Droba 2002-2003.
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4 //
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5 // Distributed under the Boost Software License, Version 1.0.
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6 // (See accompanying file LICENSE_1_0.txt or copy at
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7 // http://www.boost.org/LICENSE_1_0.txt)
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8
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9 // See http://www.boost.org/ for updates, documentation, and revision history.
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10
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11 #ifndef BOOST_STRING_CASE_CONV_HPP
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12 #define BOOST_STRING_CASE_CONV_HPP
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13
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14 #include <boost/algorithm/string/config.hpp>
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15 #include <algorithm>
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16 #include <locale>
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17 #include <boost/iterator/transform_iterator.hpp>
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18
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19 #include <boost/range/as_literal.hpp>
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20 #include <boost/range/begin.hpp>
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21 #include <boost/range/end.hpp>
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22 #include <boost/range/value_type.hpp>
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23
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24 #include <boost/algorithm/string/detail/case_conv.hpp>
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25
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26 /*! \file
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27 Defines sequence case-conversion algorithms.
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28 Algorithms convert each element in the input sequence to the
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29 desired case using provided locales.
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30 */
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31
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32 namespace boost {
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33 namespace algorithm {
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34
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35 // to_lower -----------------------------------------------//
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36
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37 //! Convert to lower case
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38 /*!
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39 Each element of the input sequence is converted to lower
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40 case. The result is a copy of the input converted to lower case.
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41 It is returned as a sequence or copied to the output iterator.
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42
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43 \param Output An output iterator to which the result will be copied
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44 \param Input An input range
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45 \param Loc A locale used for conversion
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46 \return
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47 An output iterator pointing just after the last inserted character or
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48 a copy of the input
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49
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50 \note The second variant of this function provides the strong exception-safety guarantee
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51
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52 */
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53 template<typename OutputIteratorT, typename RangeT>
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54 inline OutputIteratorT
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55 to_lower_copy(
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56 OutputIteratorT Output,
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57 const RangeT& Input,
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58 const std::locale& Loc=std::locale())
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59 {
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60 return ::boost::algorithm::detail::transform_range_copy(
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61 Output,
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62 ::boost::as_literal(Input),
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63 ::boost::algorithm::detail::to_lowerF<
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64 typename range_value<RangeT>::type >(Loc));
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65 }
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66
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67 //! Convert to lower case
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68 /*!
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69 \overload
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70 */
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71 template<typename SequenceT>
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72 inline SequenceT to_lower_copy(
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73 const SequenceT& Input,
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74 const std::locale& Loc=std::locale())
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75 {
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76 return ::boost::algorithm::detail::transform_range_copy<SequenceT>(
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77 Input,
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78 ::boost::algorithm::detail::to_lowerF<
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79 typename range_value<SequenceT>::type >(Loc));
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80 }
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81
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82 //! Convert to lower case
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83 /*!
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84 Each element of the input sequence is converted to lower
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85 case. The input sequence is modified in-place.
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86
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87 \param Input A range
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88 \param Loc a locale used for conversion
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89 */
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90 template<typename WritableRangeT>
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91 inline void to_lower(
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92 WritableRangeT& Input,
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93 const std::locale& Loc=std::locale())
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94 {
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95 ::boost::algorithm::detail::transform_range(
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96 ::boost::as_literal(Input),
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97 ::boost::algorithm::detail::to_lowerF<
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98 typename range_value<WritableRangeT>::type >(Loc));
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99 }
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100
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101 // to_upper -----------------------------------------------//
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102
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103 //! Convert to upper case
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104 /*!
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105 Each element of the input sequence is converted to upper
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106 case. The result is a copy of the input converted to upper case.
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107 It is returned as a sequence or copied to the output iterator
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108
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109 \param Output An output iterator to which the result will be copied
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110 \param Input An input range
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111 \param Loc A locale used for conversion
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112 \return
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113 An output iterator pointing just after the last inserted character or
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114 a copy of the input
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115
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116 \note The second variant of this function provides the strong exception-safety guarantee
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117 */
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118 template<typename OutputIteratorT, typename RangeT>
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119 inline OutputIteratorT
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120 to_upper_copy(
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121 OutputIteratorT Output,
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122 const RangeT& Input,
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123 const std::locale& Loc=std::locale())
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124 {
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125 return ::boost::algorithm::detail::transform_range_copy(
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126 Output,
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127 ::boost::as_literal(Input),
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128 ::boost::algorithm::detail::to_upperF<
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129 typename range_value<RangeT>::type >(Loc));
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130 }
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131
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132 //! Convert to upper case
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133 /*!
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134 \overload
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135 */
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136 template<typename SequenceT>
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137 inline SequenceT to_upper_copy(
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138 const SequenceT& Input,
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139 const std::locale& Loc=std::locale())
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140 {
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141 return ::boost::algorithm::detail::transform_range_copy<SequenceT>(
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142 Input,
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143 ::boost::algorithm::detail::to_upperF<
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144 typename range_value<SequenceT>::type >(Loc));
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145 }
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146
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147 //! Convert to upper case
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148 /*!
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149 Each element of the input sequence is converted to upper
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150 case. The input sequence is modified in-place.
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151
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152 \param Input An input range
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153 \param Loc a locale used for conversion
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154 */
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155 template<typename WritableRangeT>
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156 inline void to_upper(
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157 WritableRangeT& Input,
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158 const std::locale& Loc=std::locale())
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159 {
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160 ::boost::algorithm::detail::transform_range(
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161 ::boost::as_literal(Input),
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162 ::boost::algorithm::detail::to_upperF<
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163 typename range_value<WritableRangeT>::type >(Loc));
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164 }
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165
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166 } // namespace algorithm
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167
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168 // pull names to the boost namespace
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169 using algorithm::to_lower;
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170 using algorithm::to_lower_copy;
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171 using algorithm::to_upper;
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172 using algorithm::to_upper_copy;
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173
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174 } // namespace boost
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175
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176 #endif // BOOST_STRING_CASE_CONV_HPP
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