SiddiqSoft.string2map 1.4.0-main0001

string2map

Simple C++17 library to aid in the parsing of HTTP headers into a STL map-type container.

Objective

Convert the input string with the specified delimiters into a map of key-value pairs with the given input:

• std::[w]string
• Key delimiter (example: : , :, =, = )
• Value delimiter (end of the key-value pair element, example: CRLF)
• Destination output type for key/value: string or wstring.
• Destination container type: map, multimap, unordered_map.

API

namespace string2map
{
	template <typename T, typename D = T, typename R = std::map<D, D>>
	R parse(T& src, const T& keyDelimiter, const T& valueDelimiter) noexcept(false)
}

Usage

Get it from nuget or you can submodule it.

#include <string>
#include <map>

#include "siddiqsoft/string2map.hpp"

void Test()
{
    auto sampleStr{ "Host: duplicate\r\n"
                    "Host: hostname.com\r\n"
                    "Content-Type: text\r\n"
                    "Content-Length: 99\r\n\r\n"s };

    auto kvmap= siddiqsoft::string2map::parse<string,  // input string
                                              wstring, // transform to wstring
                                              map<wstring,wstring> // destination container
                                             >(sampleStr);

    // We expect only 3 items even though there is a duplicate key in the source string.
    // The std::map container ensures unique keys.
    EXPECT_EQ(3, kvmap.size());
}

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© 2020 Siddiq Software LLC. All rights reserved. Refer to LICENSE.

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