1 | /*============================================================================= |
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2 | Copyright (c) 2003 Hartmut Kaiser |
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3 | http://spirit.sourceforge.net/ |
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4 | |
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5 | Use, modification and distribution is subject to the Boost Software |
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6 | License, Version 1.0. (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 | #include <iostream> |
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10 | #include <boost/detail/lightweight_test.hpp> |
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11 | |
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12 | using namespace std; |
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13 | |
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14 | #define BOOST_SPIRIT_SWITCH_CASE_LIMIT 6 |
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15 | #define BOOST_SPIRIT_SELECT_LIMIT 6 |
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16 | #define PHOENIX_LIMIT 6 |
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17 | |
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18 | //#define BOOST_SPIRIT_DEBUG |
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19 | #include <boost/mpl/list.hpp> |
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20 | #include <boost/mpl/for_each.hpp> |
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21 | |
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22 | #include <boost/spirit/core/primitives/primitives.hpp> |
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23 | #include <boost/spirit/core/primitives/numerics.hpp> |
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24 | #include <boost/spirit/core/composite/actions.hpp> |
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25 | #include <boost/spirit/core/composite/operators.hpp> |
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26 | #include <boost/spirit/core/non_terminal/rule.hpp> |
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27 | #include <boost/spirit/core/non_terminal/grammar.hpp> |
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28 | #include <boost/spirit/dynamic/switch.hpp> |
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29 | #include <boost/spirit/dynamic/select.hpp> |
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30 | #include <boost/spirit/attribute/closure.hpp> |
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31 | |
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32 | using namespace boost::spirit; |
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33 | |
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34 | namespace test_grammars { |
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35 | |
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36 | /////////////////////////////////////////////////////////////////////////////// |
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37 | // Test the direct switch_p usage |
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38 | struct switch_grammar_direct_single |
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39 | : public grammar<switch_grammar_direct_single> |
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40 | { |
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41 | template <typename ScannerT> |
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42 | struct definition |
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43 | { |
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44 | definition(switch_grammar_direct_single const& /*self*/) |
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45 | { |
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46 | r = switch_p [ |
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47 | case_p<'a'>(int_p) |
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48 | ]; |
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49 | } |
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50 | |
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51 | rule<ScannerT> r; |
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52 | rule<ScannerT> const& start() const { return r; } |
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53 | }; |
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54 | }; |
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55 | |
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56 | struct switch_grammar_direct_default_single1 |
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57 | : public grammar<switch_grammar_direct_default_single1> |
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58 | { |
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59 | template <typename ScannerT> |
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60 | struct definition |
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61 | { |
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62 | definition(switch_grammar_direct_default_single1 const& /*self*/) |
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63 | { |
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64 | r = switch_p [ |
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65 | default_p(str_p("default")) |
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66 | ]; |
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67 | } |
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68 | |
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69 | rule<ScannerT> r; |
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70 | rule<ScannerT> const& start() const { return r; } |
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71 | }; |
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72 | }; |
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73 | |
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74 | struct switch_grammar_direct_default_single2 |
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75 | : public grammar<switch_grammar_direct_default_single2> |
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76 | { |
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77 | template <typename ScannerT> |
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78 | struct definition |
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79 | { |
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80 | definition(switch_grammar_direct_default_single2 const& /*self*/) |
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81 | { |
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82 | r = switch_p [ |
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83 | default_p |
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84 | ]; |
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85 | } |
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86 | |
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87 | rule<ScannerT> r; |
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88 | rule<ScannerT> const& start() const { return r; } |
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89 | }; |
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90 | }; |
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91 | |
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92 | /////////////////////////////////////////////////////////////////////////////// |
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93 | // Test the switch_p usage given a parser as the switch condition |
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94 | struct switch_grammar_parser_single |
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95 | : public grammar<switch_grammar_parser_single> |
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96 | { |
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97 | template <typename ScannerT> |
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98 | struct definition |
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99 | { |
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100 | definition(switch_grammar_parser_single const& /*self*/) |
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101 | { |
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102 | r = switch_p(anychar_p) [ |
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103 | case_p<'a'>(int_p) |
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104 | ]; |
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105 | } |
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106 | |
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107 | rule<ScannerT> r; |
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108 | rule<ScannerT> const& start() const { return r; } |
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109 | }; |
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110 | }; |
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111 | |
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112 | struct switch_grammar_parser_default_single1 |
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113 | : public grammar<switch_grammar_parser_default_single1> |
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114 | { |
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115 | template <typename ScannerT> |
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116 | struct definition |
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117 | { |
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118 | definition(switch_grammar_parser_default_single1 const& /*self*/) |
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119 | { |
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120 | r = switch_p(anychar_p) [ |
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121 | default_p(str_p("default")) |
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122 | ]; |
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123 | } |
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124 | |
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125 | rule<ScannerT> r; |
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126 | rule<ScannerT> const& start() const { return r; } |
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127 | }; |
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128 | }; |
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129 | |
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130 | struct switch_grammar_parser_default_single2 |
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131 | : public grammar<switch_grammar_parser_default_single2> |
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132 | { |
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133 | template <typename ScannerT> |
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134 | struct definition |
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135 | { |
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136 | definition(switch_grammar_parser_default_single2 const& /*self*/) |
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137 | { |
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138 | r = switch_p(anychar_p) [ |
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139 | default_p |
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140 | ]; |
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141 | } |
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142 | |
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143 | rule<ScannerT> r; |
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144 | rule<ScannerT> const& start() const { return r; } |
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145 | }; |
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146 | }; |
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147 | |
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148 | /////////////////////////////////////////////////////////////////////////////// |
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149 | // Test the switch_p usage given an actor as the switch condition |
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150 | struct select_result : public boost::spirit::closure<select_result, int> |
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151 | { |
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152 | member1 val; |
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153 | }; |
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154 | |
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155 | struct switch_grammar_actor_single |
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156 | : public grammar<switch_grammar_actor_single> |
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157 | { |
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158 | template <typename ScannerT> |
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159 | struct definition |
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160 | { |
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161 | definition(switch_grammar_actor_single const& /*self*/) |
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162 | { |
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163 | using phoenix::arg1; |
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164 | r = select_p('a')[r.val = arg1] >> |
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165 | switch_p(r.val) [ |
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166 | case_p<0>(int_p) |
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167 | ]; |
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168 | } |
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169 | |
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170 | rule<ScannerT, select_result::context_t> r; |
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171 | rule<ScannerT, select_result::context_t> const& |
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172 | start() const { return r; } |
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173 | }; |
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174 | }; |
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175 | |
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176 | struct switch_grammar_actor_default_single1 |
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177 | : public grammar<switch_grammar_actor_default_single1> |
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178 | { |
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179 | template <typename ScannerT> |
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180 | struct definition |
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181 | { |
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182 | definition(switch_grammar_actor_default_single1 const& /*self*/) |
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183 | { |
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184 | using phoenix::arg1; |
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185 | r = select_p('d')[r.val = arg1] >> |
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186 | switch_p(r.val) [ |
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187 | default_p(str_p("default")) |
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188 | ]; |
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189 | } |
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190 | |
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191 | rule<ScannerT, select_result::context_t> r; |
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192 | rule<ScannerT, select_result::context_t> const& |
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193 | start() const { return r; } |
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194 | }; |
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195 | }; |
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196 | |
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197 | struct switch_grammar_actor_default_single2 |
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198 | : public grammar<switch_grammar_actor_default_single2> |
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199 | { |
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200 | template <typename ScannerT> |
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201 | struct definition |
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202 | { |
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203 | definition(switch_grammar_actor_default_single2 const& /*self*/) |
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204 | { |
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205 | using phoenix::arg1; |
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206 | r = select_p('d')[r.val = arg1] >> |
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207 | switch_p(r.val) [ |
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208 | default_p |
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209 | ]; |
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210 | } |
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211 | |
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212 | rule<ScannerT, select_result::context_t> r; |
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213 | rule<ScannerT, select_result::context_t> const& |
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214 | start() const { return r; } |
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215 | }; |
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216 | }; |
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217 | |
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218 | } // namespace test_grammars |
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219 | |
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220 | /////////////////////////////////////////////////////////////////////////////// |
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221 | namespace tests { |
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222 | |
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223 | // Tests for known (to the grammars) sequences |
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224 | struct check_grammar_unknown { |
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225 | |
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226 | template <typename GrammarT> |
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227 | void operator()(GrammarT) |
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228 | { |
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229 | GrammarT g; |
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230 | |
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231 | BOOST_TEST(!parse("a1", g).hit); |
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232 | BOOST_TEST(!parse("a,", g).hit); |
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233 | BOOST_TEST(!parse("abcd", g).hit); |
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234 | |
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235 | BOOST_TEST(!parse("a 1", g, space_p).hit); |
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236 | BOOST_TEST(!parse("a ,", g, space_p).hit); |
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237 | BOOST_TEST(!parse("a bcd", g, space_p).hit); |
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238 | |
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239 | BOOST_TEST(!parse("b1", g).hit); |
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240 | BOOST_TEST(!parse("b,", g).hit); |
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241 | BOOST_TEST(!parse("bbcd", g).hit); |
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242 | |
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243 | BOOST_TEST(!parse("b 1", g, space_p).hit); |
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244 | BOOST_TEST(!parse("b ,", g, space_p).hit); |
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245 | BOOST_TEST(!parse("b bcd", g, space_p).hit); |
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246 | |
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247 | BOOST_TEST(!parse("c1", g).hit); |
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248 | BOOST_TEST(!parse("c,", g).hit); |
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249 | BOOST_TEST(!parse("cbcd", g).hit); |
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250 | |
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251 | BOOST_TEST(!parse("c 1", g, space_p).hit); |
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252 | BOOST_TEST(!parse("c ,", g, space_p).hit); |
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253 | BOOST_TEST(!parse("c bcd", g, space_p).hit); |
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254 | } |
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255 | }; |
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256 | |
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257 | // Tests for the default branches (with parsers) of the grammars |
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258 | struct check_grammar_default { |
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259 | |
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260 | template <typename GrammarT> |
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261 | void operator()(GrammarT) |
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262 | { |
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263 | GrammarT g; |
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264 | |
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265 | BOOST_TEST(parse("ddefault", g).full); |
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266 | BOOST_TEST(parse("d default", g, space_p).full); |
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267 | } |
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268 | }; |
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269 | |
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270 | // Tests for the default branches (without parsers) of the grammars |
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271 | struct check_grammar_default_plain { |
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272 | |
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273 | template <typename GrammarT> |
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274 | void operator()(GrammarT) |
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275 | { |
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276 | GrammarT g; |
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277 | |
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278 | BOOST_TEST(parse("d", g).full); |
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279 | BOOST_TEST(parse(" d", g, space_p).full); // JDG 10-18-2005 removed trailing ' ' to |
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280 | // avoid post skip problems |
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281 | } |
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282 | }; |
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283 | |
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284 | // Tests grammars with a single case_p branch |
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285 | struct check_grammar_single { |
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286 | |
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287 | template <typename GrammarT> |
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288 | void operator()(GrammarT) |
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289 | { |
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290 | GrammarT g; |
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291 | |
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292 | BOOST_TEST(parse("a1", g).full); |
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293 | BOOST_TEST(!parse("a,", g).hit); |
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294 | BOOST_TEST(!parse("abcd", g).hit); |
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295 | |
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296 | BOOST_TEST(parse("a 1", g, space_p).full); |
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297 | BOOST_TEST(!parse("a ,", g, space_p).hit); |
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298 | BOOST_TEST(!parse("a bcd", g, space_p).hit); |
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299 | |
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300 | BOOST_TEST(!parse("b1", g).hit); |
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301 | BOOST_TEST(!parse("b,", g).hit); |
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302 | BOOST_TEST(!parse("bbcd", g).hit); |
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303 | |
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304 | BOOST_TEST(!parse("b 1", g, space_p).hit); |
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305 | BOOST_TEST(!parse("b ,", g, space_p).hit); |
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306 | BOOST_TEST(!parse("b bcd", g, space_p).hit); |
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307 | |
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308 | BOOST_TEST(!parse("c1", g).hit); |
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309 | BOOST_TEST(!parse("c,", g).hit); |
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310 | BOOST_TEST(!parse("cbcd", g).hit); |
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311 | |
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312 | BOOST_TEST(!parse("c 1", g, space_p).hit); |
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313 | BOOST_TEST(!parse("c ,", g, space_p).hit); |
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314 | BOOST_TEST(!parse("c bcd", g, space_p).hit); |
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315 | } |
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316 | }; |
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317 | |
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318 | } // namespace tests |
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319 | |
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320 | int |
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321 | main() |
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322 | { |
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323 | // Test switch_p with a single case_p branch |
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324 | typedef boost::mpl::list< |
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325 | test_grammars::switch_grammar_direct_single, |
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326 | test_grammars::switch_grammar_parser_single, |
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327 | test_grammars::switch_grammar_actor_single |
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328 | > single_list_t; |
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329 | |
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330 | boost::mpl::for_each<single_list_t>(tests::check_grammar_single()); |
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331 | |
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332 | typedef boost::mpl::list< |
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333 | test_grammars::switch_grammar_direct_default_single1, |
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334 | test_grammars::switch_grammar_parser_default_single1, |
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335 | test_grammars::switch_grammar_actor_default_single1 |
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336 | > default_single_t; |
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337 | |
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338 | boost::mpl::for_each<default_single_t>(tests::check_grammar_default()); |
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339 | boost::mpl::for_each<default_single_t>(tests::check_grammar_unknown()); |
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340 | |
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341 | typedef boost::mpl::list< |
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342 | test_grammars::switch_grammar_direct_default_single2, |
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343 | test_grammars::switch_grammar_parser_default_single2, |
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344 | test_grammars::switch_grammar_actor_default_single2 |
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345 | > default_plain_single_t; |
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346 | |
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347 | boost::mpl::for_each<default_plain_single_t>( |
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348 | tests::check_grammar_default_plain()); |
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349 | |
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350 | return boost::report_errors(); |
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351 | } |
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