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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_RGW_ESCAPE_H
#define CEPH_RGW_ESCAPE_H
#include <ostream>
#include <string_view>
/* Returns the length of a buffer that would be needed to escape 'buf'
* as an XML attribute
*/
size_t escape_xml_attr_len(const char *buf);
/* Escapes 'buf' as an XML attribute. Assumes that 'out' is at least long
* enough to fit the output. You can find out the required length by calling
* escape_xml_attr_len first.
*/
void escape_xml_attr(const char *buf, char *out);
/* Returns the length of a buffer that would be needed to escape 'buf'
* as an JSON attribute
*/
size_t escape_json_attr_len(const char *buf, size_t src_len);
/* Escapes 'buf' as an JSON attribute. Assumes that 'out' is at least long
* enough to fit the output. You can find out the required length by calling
* escape_json_attr_len first.
*/
void escape_json_attr(const char *buf, size_t src_len, char *out);
/* Note: we escape control characters. Although the XML spec doesn't actually
* require this, Amazon does it in their XML responses.
*/
// stream output operators that write escaped text without making a copy
// usage:
// std::string xml_input = ...;
// std::cout << xml_stream_escaper(xml_input) << std::endl;
struct xml_stream_escaper {
std::string_view str;
xml_stream_escaper(std::string_view str) : str(str.data(), str.size()) {}
};
std::ostream& operator<<(std::ostream& out, const xml_stream_escaper& e);
struct json_stream_escaper {
std::string_view str;
json_stream_escaper(std::string_view str) : str(str.data(), str.size()) {}
};
std::ostream& operator<<(std::ostream& out, const json_stream_escaper& e);
#endif
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