1 | /*============================================================================= |
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2 | Copyright (c) 1998-2003 Joel de Guzman |
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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_DEBUG |
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15 | #define BOOST_SPIRIT_RULE_SCANNERTYPE_LIMIT 3 |
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16 | |
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17 | #include <boost/spirit/core.hpp> |
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18 | #include <boost/spirit/dynamic/stored_rule.hpp> |
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19 | using namespace boost::spirit; |
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20 | |
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21 | /////////////////////////////////////////////////////////////////////////////// |
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22 | // |
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23 | // Rule tests |
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24 | // |
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25 | /////////////////////////////////////////////////////////////////////////////// |
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26 | void |
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27 | aliasing_tests() |
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28 | { |
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29 | rule<> a = ch_p('a'); |
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30 | rule<> b = ch_p('b'); |
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31 | rule<> c = ch_p('c'); |
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32 | |
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33 | cout << "sizeof(rule<>): " << sizeof(rule<>) << endl; |
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34 | |
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35 | BOOST_SPIRIT_DEBUG_RULE(a); |
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36 | BOOST_SPIRIT_DEBUG_RULE(b); |
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37 | BOOST_SPIRIT_DEBUG_RULE(c); |
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38 | |
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39 | rule<> start; |
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40 | BOOST_SPIRIT_DEBUG_RULE(start); |
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41 | |
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42 | rule<> d; |
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43 | d = start; // aliasing |
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44 | |
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45 | parse_info<char const*> pi; |
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46 | |
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47 | start = *(a | b | c); |
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48 | pi = parse("abcabcacb", d); |
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49 | BOOST_TEST(pi.hit); |
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50 | BOOST_TEST(pi.full); |
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51 | BOOST_TEST(pi.length == 9); |
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52 | BOOST_TEST(*pi.stop == 0); |
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53 | |
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54 | start = (a | b) >> (start | b); |
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55 | pi = parse("aaaabababaaabbb", d); |
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56 | BOOST_TEST(pi.hit); |
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57 | BOOST_TEST(pi.full); |
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58 | BOOST_TEST(pi.length == 15); |
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59 | BOOST_TEST(*pi.stop == 0); |
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60 | } |
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61 | |
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62 | void |
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63 | rule_template_param_tests() |
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64 | { |
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65 | // test that rules can be issued its template params in any order: |
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66 | |
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67 | rule<> rx1; |
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68 | rule<scanner<> > rx2; |
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69 | rule<scanner<>, parser_context<> > rx3; |
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70 | rule<scanner<>, parser_context<>, parser_address_tag> rx4; |
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71 | |
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72 | rule<parser_context<> > rx5; |
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73 | rule<parser_context<>, parser_address_tag> rx6; |
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74 | rule<parser_context<>, parser_address_tag, scanner<> > rx7; |
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75 | |
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76 | rule<parser_address_tag> rx8; |
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77 | rule<parser_address_tag, scanner<> > rx9; |
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78 | rule<parser_address_tag, scanner<>, parser_context<> > rx10; |
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79 | |
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80 | rule<parser_address_tag, parser_context<> > rx11; |
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81 | rule<parser_address_tag, parser_context<>, scanner<> > rx12; |
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82 | |
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83 | rule<parser_context<>, scanner<> > rx13; |
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84 | rule<parser_context<>, scanner<>, parser_address_tag> rx14; |
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85 | } |
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86 | |
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87 | struct my_grammar : public grammar<my_grammar> |
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88 | { |
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89 | template <typename ScannerT> |
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90 | struct definition |
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91 | { |
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92 | definition(my_grammar const& /*self*/) |
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93 | { |
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94 | r = lower_p; |
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95 | rr = +(lexeme_d[r] >> as_lower_d[r] >> r); |
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96 | } |
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97 | |
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98 | typedef scanner_list< |
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99 | ScannerT |
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100 | , typename lexeme_scanner<ScannerT>::type |
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101 | , typename as_lower_scanner<ScannerT>::type |
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102 | > scanners; |
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103 | |
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104 | rule<scanners> r; |
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105 | rule<ScannerT> rr; |
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106 | rule<ScannerT> const& start() const { return rr; } |
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107 | }; |
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108 | }; |
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109 | |
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110 | void |
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111 | rule_2_or_more_scanners_tests() |
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112 | { |
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113 | { // 2 scanners |
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114 | typedef scanner_list<scanner<>, phrase_scanner_t> scanners; |
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115 | |
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116 | rule<scanners> r = +anychar_p; |
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117 | BOOST_TEST(parse("abcdefghijk", r).full); |
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118 | BOOST_TEST(parse("a b c d e f g h i j k", r, space_p).full); |
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119 | } |
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120 | |
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121 | { // 3 scanners |
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122 | my_grammar g; |
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123 | BOOST_TEST(parse("abcdef aBc d e f aBc d E f", g, space_p).full); |
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124 | } |
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125 | } |
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126 | |
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127 | void |
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128 | rule_basic_tests() |
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129 | { |
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130 | rule<> a = ch_p('a'); |
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131 | rule<> b = ch_p('b'); |
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132 | rule<> c = ch_p('c'); |
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133 | |
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134 | BOOST_SPIRIT_DEBUG_RULE(a); |
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135 | BOOST_SPIRIT_DEBUG_RULE(b); |
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136 | BOOST_SPIRIT_DEBUG_RULE(c); |
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137 | |
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138 | parse_info<char const*> pi; |
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139 | |
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140 | rule<> start = *(a | b | c); |
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141 | |
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142 | BOOST_SPIRIT_DEBUG_RULE(start); |
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143 | |
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144 | pi = parse("abcabcacb", start); |
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145 | BOOST_TEST(pi.hit); |
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146 | BOOST_TEST(pi.full); |
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147 | BOOST_TEST(pi.length == 9); |
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148 | BOOST_TEST(*pi.stop == 0); |
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149 | |
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150 | start = (a | b) >> (start | b); |
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151 | pi = parse("aaaabababaaabbb", start); |
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152 | BOOST_TEST(pi.hit); |
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153 | BOOST_TEST(pi.full); |
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154 | BOOST_TEST(pi.length == 15); |
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155 | BOOST_TEST(*pi.stop == 0); |
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156 | |
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157 | pi = parse("aaaabababaaabba", start); |
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158 | BOOST_TEST(pi.hit); |
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159 | BOOST_TEST(!pi.full); |
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160 | BOOST_TEST(pi.length == 14); |
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161 | } |
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162 | |
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163 | void |
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164 | stored_rule_basic_tests() |
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165 | { |
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166 | stored_rule<> a = ch_p('a'); |
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167 | stored_rule<> b = ch_p('b'); |
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168 | stored_rule<> c = ch_p('c'); |
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169 | |
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170 | BOOST_SPIRIT_DEBUG_RULE(a); |
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171 | BOOST_SPIRIT_DEBUG_RULE(b); |
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172 | BOOST_SPIRIT_DEBUG_RULE(c); |
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173 | |
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174 | parse_info<char const*> pi; |
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175 | |
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176 | stored_rule<> start = *(a | b | c); |
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177 | |
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178 | BOOST_SPIRIT_DEBUG_RULE(start); |
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179 | |
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180 | pi = parse("abcabcacb", start); |
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181 | BOOST_TEST(pi.hit); |
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182 | BOOST_TEST(pi.full); |
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183 | BOOST_TEST(pi.length == 9); |
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184 | BOOST_TEST(*pi.stop == 0); |
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185 | |
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186 | start = (a | b) >> (start | b); |
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187 | pi = parse("aaaabababaaabbb", start); |
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188 | BOOST_TEST(pi.hit); |
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189 | BOOST_TEST(pi.full); |
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190 | BOOST_TEST(pi.length == 15); |
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191 | BOOST_TEST(*pi.stop == 0); |
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192 | |
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193 | pi = parse("aaaabababaaabba", start); |
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194 | BOOST_TEST(pi.hit); |
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195 | BOOST_TEST(!pi.full); |
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196 | BOOST_TEST(pi.length == 14); |
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197 | } |
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198 | |
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199 | void |
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200 | stored_rule_dynamic_tests() |
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201 | { |
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202 | rule<> a = ch_p('a'); |
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203 | rule<> b = ch_p('b'); |
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204 | rule<> c = ch_p('c'); |
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205 | |
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206 | BOOST_SPIRIT_DEBUG_RULE(a); |
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207 | BOOST_SPIRIT_DEBUG_RULE(b); |
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208 | BOOST_SPIRIT_DEBUG_RULE(c); |
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209 | |
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210 | parse_info<char const*> pi; |
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211 | |
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212 | // The FF is the dynamic equivalent of start = *(a | b | c); |
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213 | stored_rule<> start = a; |
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214 | start = start.copy() | b; |
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215 | start = start.copy() | c; |
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216 | start = *(start.copy()); |
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217 | |
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218 | cout << "sizeof(stored_rule<>): " << sizeof(stored_rule<>) << endl; |
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219 | |
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220 | BOOST_SPIRIT_DEBUG_RULE(start); |
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221 | |
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222 | pi = parse("abcabcacb", start); |
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223 | BOOST_TEST(pi.hit); |
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224 | BOOST_TEST(pi.full); |
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225 | BOOST_TEST(pi.length == 9); |
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226 | BOOST_TEST(*pi.stop == 0); |
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227 | |
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228 | // The FF is the dynamic equivalent of start = (a | b) >> (start | b); |
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229 | start = b; |
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230 | start = a | start.copy(); |
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231 | start = start.copy() >> (start | b); |
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232 | |
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233 | pi = parse("aaaabababaaabbb", start); |
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234 | BOOST_TEST(pi.hit); |
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235 | BOOST_TEST(pi.full); |
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236 | BOOST_TEST(pi.length == 15); |
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237 | BOOST_TEST(*pi.stop == 0); |
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238 | |
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239 | pi = parse("aaaabababaaabba", start); |
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240 | BOOST_TEST(pi.hit); |
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241 | BOOST_TEST(!pi.full); |
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242 | BOOST_TEST(pi.length == 14); |
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243 | } |
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244 | |
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245 | /////////////////////////////////////////////////////////////////////////////// |
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246 | // |
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247 | // Main |
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248 | // |
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249 | /////////////////////////////////////////////////////////////////////////////// |
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250 | int |
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251 | main() |
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252 | { |
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253 | rule_basic_tests(); |
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254 | aliasing_tests(); |
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255 | rule_template_param_tests(); |
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256 | rule_2_or_more_scanners_tests(); |
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257 | stored_rule_basic_tests(); |
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258 | stored_rule_dynamic_tests(); |
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259 | |
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260 | return boost::report_errors(); |
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261 | } |
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262 | |
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