1 | // Boost string_algo library find_format.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_FIND_FORMAT_HPP |
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12 | #define BOOST_STRING_FIND_FORMAT_HPP |
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13 | |
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14 | #include <deque> |
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15 | #include <boost/detail/iterator.hpp> |
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16 | #include <boost/range/iterator_range.hpp> |
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17 | #include <boost/range/begin.hpp> |
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18 | #include <boost/range/end.hpp> |
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19 | #include <boost/range/const_iterator.hpp> |
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20 | #include <boost/range/as_literal.hpp> |
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21 | |
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22 | #include <boost/algorithm/string/concept.hpp> |
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23 | #include <boost/algorithm/string/detail/find_format.hpp> |
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24 | #include <boost/algorithm/string/detail/find_format_all.hpp> |
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25 | |
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26 | /*! \file |
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27 | Defines generic replace algorithms. Each algorithm replaces |
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28 | part(s) of the input. The part to be replaced is looked up using a Finder object. |
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29 | Result of finding is then used by a Formatter object to generate the replacement. |
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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 | // generic replace -----------------------------------------------------------------// |
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36 | |
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37 | //! Generic replace algorithm |
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38 | /*! |
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39 | Use the Finder to search for a substring. Use the Formatter to format |
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40 | this substring and replace it in the input. |
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41 | The result is a modified copy of the input. It is returned as a sequence |
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42 | or copied to the output iterator. |
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43 | |
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44 | \param Output An output iterator to which the result will be copied |
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45 | \param Input An input sequence |
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46 | \param Finder A Finder object used to search for a match to be replaced |
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47 | \param Formatter A Formatter object used to format a match |
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48 | \return An output iterator pointing just after the last inserted character or |
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49 | a modified copy of the input |
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50 | |
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51 | \note The second variant of this function provides the strong exception-safety guarantee |
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52 | */ |
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53 | template< |
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54 | typename OutputIteratorT, |
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55 | typename RangeT, |
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56 | typename FinderT, |
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57 | typename FormatterT> |
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58 | inline OutputIteratorT find_format_copy( |
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59 | OutputIteratorT Output, |
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60 | const RangeT& Input, |
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61 | FinderT Finder, |
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62 | FormatterT Formatter ) |
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63 | { |
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64 | // Concept check |
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65 | BOOST_CONCEPT_ASSERT(( |
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66 | FinderConcept< |
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67 | FinderT, |
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68 | BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> |
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69 | )); |
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70 | BOOST_CONCEPT_ASSERT(( |
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71 | FormatterConcept< |
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72 | FormatterT, |
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73 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> |
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74 | )); |
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75 | |
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76 | iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_input(::boost::as_literal(Input)); |
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77 | |
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78 | return detail::find_format_copy_impl( |
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79 | Output, |
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80 | lit_input, |
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81 | Formatter, |
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82 | Finder( ::boost::begin(lit_input), ::boost::end(lit_input) ) ); |
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83 | } |
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84 | |
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85 | //! Generic replace algorithm |
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86 | /*! |
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87 | \overload |
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88 | */ |
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89 | template< |
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90 | typename SequenceT, |
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91 | typename FinderT, |
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92 | typename FormatterT> |
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93 | inline SequenceT find_format_copy( |
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94 | const SequenceT& Input, |
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95 | FinderT Finder, |
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96 | FormatterT Formatter ) |
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97 | { |
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98 | // Concept check |
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99 | BOOST_CONCEPT_ASSERT(( |
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100 | FinderConcept< |
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101 | FinderT, |
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102 | BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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103 | )); |
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104 | BOOST_CONCEPT_ASSERT(( |
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105 | FormatterConcept< |
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106 | FormatterT, |
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107 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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108 | )); |
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109 | |
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110 | return detail::find_format_copy_impl( |
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111 | Input, |
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112 | Formatter, |
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113 | Finder(::boost::begin(Input), ::boost::end(Input))); |
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114 | } |
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115 | |
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116 | //! Generic replace algorithm |
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117 | /*! |
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118 | Use the Finder to search for a substring. Use the Formatter to format |
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119 | this substring and replace it in the input. The input is modified in-place. |
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120 | |
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121 | \param Input An input sequence |
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122 | \param Finder A Finder object used to search for a match to be replaced |
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123 | \param Formatter A Formatter object used to format a match |
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124 | */ |
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125 | template< |
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126 | typename SequenceT, |
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127 | typename FinderT, |
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128 | typename FormatterT> |
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129 | inline void find_format( |
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130 | SequenceT& Input, |
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131 | FinderT Finder, |
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132 | FormatterT Formatter) |
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133 | { |
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134 | // Concept check |
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135 | BOOST_CONCEPT_ASSERT(( |
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136 | FinderConcept< |
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137 | FinderT, |
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138 | BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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139 | )); |
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140 | BOOST_CONCEPT_ASSERT(( |
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141 | FormatterConcept< |
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142 | FormatterT, |
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143 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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144 | )); |
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145 | |
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146 | detail::find_format_impl( |
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147 | Input, |
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148 | Formatter, |
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149 | Finder(::boost::begin(Input), ::boost::end(Input))); |
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150 | } |
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151 | |
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152 | |
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153 | // find_format_all generic ----------------------------------------------------------------// |
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154 | |
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155 | //! Generic replace all algorithm |
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156 | /*! |
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157 | Use the Finder to search for a substring. Use the Formatter to format |
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158 | this substring and replace it in the input. Repeat this for all matching |
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159 | substrings. |
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160 | The result is a modified copy of the input. It is returned as a sequence |
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161 | or copied to the output iterator. |
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162 | |
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163 | \param Output An output iterator to which the result will be copied |
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164 | \param Input An input sequence |
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165 | \param Finder A Finder object used to search for a match to be replaced |
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166 | \param Formatter A Formatter object used to format a match |
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167 | \return An output iterator pointing just after the last inserted character or |
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168 | a modified copy of the input |
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169 | |
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170 | \note The second variant of this function provides the strong exception-safety guarantee |
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171 | */ |
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172 | template< |
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173 | typename OutputIteratorT, |
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174 | typename RangeT, |
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175 | typename FinderT, |
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176 | typename FormatterT> |
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177 | inline OutputIteratorT find_format_all_copy( |
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178 | OutputIteratorT Output, |
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179 | const RangeT& Input, |
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180 | FinderT Finder, |
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181 | FormatterT Formatter) |
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182 | { |
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183 | // Concept check |
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184 | BOOST_CONCEPT_ASSERT(( |
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185 | FinderConcept< |
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186 | FinderT, |
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187 | BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> |
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188 | )); |
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189 | BOOST_CONCEPT_ASSERT(( |
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190 | FormatterConcept< |
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191 | FormatterT, |
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192 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> |
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193 | )); |
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194 | |
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195 | iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_input(::boost::as_literal(Input)); |
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196 | |
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197 | return detail::find_format_all_copy_impl( |
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198 | Output, |
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199 | lit_input, |
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200 | Finder, |
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201 | Formatter, |
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202 | Finder(::boost::begin(lit_input), ::boost::end(lit_input))); |
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203 | } |
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204 | |
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205 | //! Generic replace all algorithm |
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206 | /*! |
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207 | \overload |
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208 | */ |
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209 | template< |
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210 | typename SequenceT, |
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211 | typename FinderT, |
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212 | typename FormatterT > |
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213 | inline SequenceT find_format_all_copy( |
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214 | const SequenceT& Input, |
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215 | FinderT Finder, |
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216 | FormatterT Formatter ) |
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217 | { |
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218 | // Concept check |
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219 | BOOST_CONCEPT_ASSERT(( |
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220 | FinderConcept< |
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221 | FinderT, |
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222 | BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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223 | )); |
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224 | BOOST_CONCEPT_ASSERT(( |
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225 | FormatterConcept< |
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226 | FormatterT, |
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227 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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228 | )); |
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229 | |
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230 | return detail::find_format_all_copy_impl( |
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231 | Input, |
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232 | Finder, |
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233 | Formatter, |
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234 | Finder( ::boost::begin(Input), ::boost::end(Input) ) ); |
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235 | } |
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236 | |
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237 | //! Generic replace all algorithm |
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238 | /*! |
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239 | Use the Finder to search for a substring. Use the Formatter to format |
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240 | this substring and replace it in the input. Repeat this for all matching |
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241 | substrings.The input is modified in-place. |
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242 | |
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243 | \param Input An input sequence |
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244 | \param Finder A Finder object used to search for a match to be replaced |
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245 | \param Formatter A Formatter object used to format a match |
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246 | */ |
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247 | template< |
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248 | typename SequenceT, |
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249 | typename FinderT, |
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250 | typename FormatterT > |
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251 | inline void find_format_all( |
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252 | SequenceT& Input, |
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253 | FinderT Finder, |
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254 | FormatterT Formatter ) |
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255 | { |
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256 | // Concept check |
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257 | BOOST_CONCEPT_ASSERT(( |
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258 | FinderConcept< |
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259 | FinderT, |
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260 | BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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261 | )); |
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262 | BOOST_CONCEPT_ASSERT(( |
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263 | FormatterConcept< |
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264 | FormatterT, |
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265 | FinderT,BOOST_STRING_TYPENAME range_const_iterator<SequenceT>::type> |
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266 | )); |
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267 | |
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268 | detail::find_format_all_impl( |
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269 | Input, |
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270 | Finder, |
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271 | Formatter, |
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272 | Finder(::boost::begin(Input), ::boost::end(Input))); |
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273 | |
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274 | } |
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275 | |
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276 | } // namespace algorithm |
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277 | |
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278 | // pull the names to the boost namespace |
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279 | using algorithm::find_format_copy; |
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280 | using algorithm::find_format; |
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281 | using algorithm::find_format_all_copy; |
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282 | using algorithm::find_format_all; |
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283 | |
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284 | } // namespace boost |
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285 | |
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286 | |
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287 | #endif // BOOST_STRING_FIND_FORMAT_HPP |
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