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This file is part of libhttpserver

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301

USA

#if !defined (_HTTPSERVER_HPP_INSIDE_) && !defined (HTTPSERVER_COMPILATION)

#error "Only <httpserver.hpp> or <httpserverpp> can be included directly."

#endif

#ifndef SRC_HTTPSERVER_STRING_UTILITIES_HPP_

#define SRC_HTTPSERVER_STRING_UTILITIES_HPP_

#include <string>

#include <vector>

namespace httpserver {

namespace string_utilities {

/**

* Function used to convert a string to its uppercase version.

* It generates a new string in output

* @param str The string to turn uppercase

* @return a string that is the uppercase version of the previous

**/

const std::string to_upper_copy(const std::string& str);

const std::string to_lower_copy(const std::string& str);

const std::vector<std::string> string_split(const std::string& s, char sep = ' ', bool collapse = true);

/**

* Validate that a string contains only valid hexadecimal characters (0-9, a-f, A-F)

* @param s The string to validate

* @return true if string contains only valid hex characters, false otherwise

bool is_valid_hex(const std::string& s);

/**

* Convert a hex character to its numeric value (0-15)

* @param c The hex character to convert

* @return numeric value (0-15), or 0 for invalid characters

unsigned char hex_char_to_val(char c);

} // namespace string_utilities

} // namespace httpserver

#endif // SRC_HTTPSERVER_STRING_UTILITIES_HPP_