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construct/include/ircd/json/string.h
2019-08-02 15:04:29 -07:00

59 lines
1.6 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_JSON_STRING_H
namespace ircd::json
{
struct string;
// note: in is not a json::string; all characters viewed are candidate
string escape(const mutable_buffer &out, const string_view &in);
// note: in is a json::string and return is a const_buffer to force
// explicit conversions because this operation generates binary data.
const_buffer unescape(const mutable_buffer &out, const string &in);
}
/// Strong type representing quoted strings in JSON (which may be unquoted
/// automatically when this type is encountered in a tuple etc).
struct ircd::json::string
:string_view
{
string() = default;
string(json::string &&) = default;
string(const json::string &) = default;
string(const string_view &s);
string &operator=(json::string &&) = default;
string &operator=(const json::string &) = default;
string &operator=(const string_view &s);
};
inline
ircd::json::string::string(const string_view &s)
:string_view
{
surrounds(s, '"')?
unquote(s):
s
}
{}
inline ircd::json::string &
ircd::json::string::operator=(const string_view &s)
{
*static_cast<string_view *>(this) = surrounds(s, '"')?
unquote(s):
s;
return *this;
}