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d60d33e40b
This makes it possible to map from sequence parsers onto structs with no semantic actions. Also, add a doc section describing how parsing structs works (including a couple of short example programs). Fixes #45. Partially addresses #28.
51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
// Copyright (C) 2024 T. Zachary Laine
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//[ parsing_into_a_struct_example
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#include <boost/parser/parser.hpp>
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#include <iostream>
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#include <string>
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struct employee
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{
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int age;
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std::string surname;
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std::string forename;
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double salary;
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};
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namespace bp = boost::parser;
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int main()
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{
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std::cout << "Enter employee record. ";
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std::string input;
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std::getline(std::cin, input);
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auto quoted_string = bp::lexeme['"' >> +(bp::char_ - '"') >> '"'];
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auto employee_p = bp::lit("employee")
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>> '{'
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>> bp::int_ >> ','
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>> quoted_string >> ','
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>> quoted_string >> ','
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>> bp::double_
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>> '}';
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employee record;
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auto const result = bp::parse(input, employee_p, bp::ws, record);
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if (result) {
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std::cout << "You entered:\nage: " << record.age
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<< "\nsurname: " << record.surname
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<< "\nforename: " << record.forename
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<< "\nsalary : " << record.salary << "\n";
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} else {
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std::cout << "Parse failure.\n";
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}
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}
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//]
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