libabigail/include/abg-libxml-utils.h
Dodji Seketeli f014f8c1f0 Fix compilation with g++ 4.8.5 on el7
G++ 4.8.5 doesn't allow a function template specialization to appear
in a namespace that is different from the namespace where the function
template was declared.  Also, in that namespace, the name of the
specialized function template must be non-fully-qualified.

Fixed thus.

	* include/abg-libxml-utils.h (build_sptr<xmlTextReader>): Wrap
	this specialization in the namespace sptr_utils and do away with
	the sptr_utils qualifier.
	* include/abg-regex.h (build_sptr<regex_t>): Likewise.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2020-05-04 13:07:24 +02:00

147 lines
4.0 KiB
C++

// -*- mode: C++ -*-
//
// Copyright (C) 2013-2020 Red Hat, Inc.
//
// This file is part of the GNU Application Binary Interface Generic
// Analysis and Instrumentation Library (libabigail). 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 3, 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
// General Lesser Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this program; see the file COPYING-LGPLV3. If
// not, see <http://www.gnu.org/licenses/>.
/// @file
#ifndef __ABG_LIBXML_UTILS_H__
#define __ABG_LIBXML_UTILS_H__
#include <libxml/xmlreader.h>
#include <istream>
#include "abg-sptr-utils.h"
#include "abg-cxx-compat.h"
namespace abigail
{
/// Internal namespace for xml manipulation utilities.
namespace xml
{
using sptr_utils::build_sptr;
using abg_compat::shared_ptr;
/// A convenience typedef for a shared pointer of xmlTextReader.
typedef shared_ptr<xmlTextReader> reader_sptr;
/// A convenience typedef for a shared pointer of xmlChar.
typedef shared_ptr<xmlChar> xml_char_sptr;
/// This functor is used to instantiate a shared_ptr for the
/// xmlTextReader.
struct textReaderDeleter
{
void
operator()(xmlTextReaderPtr reader)
{xmlFreeTextReader(reader);}
};
/// This functor is used to instantiate a shared_ptr for xmlChar
struct charDeleter
{
void
operator()(xmlChar* str)
{ xmlFree(str); }
};
reader_sptr new_reader_from_file(const std::string& path);
reader_sptr new_reader_from_buffer(const std::string& buffer);
reader_sptr new_reader_from_istream(std::istream*);
bool xml_char_sptr_to_string(xml_char_sptr, std::string&);
int get_xml_node_depth(xmlNodePtr);
/// Get the name of the current element node the reader is pointing
/// to. Note that this macro returns an instance of
/// shared_ptr<xmlChar> so that the caller doesn't have to worry about
/// managing memory itself. Also note that the reader is a
/// shared_ptr<xmlTextReader>
#define XML_READER_GET_NODE_NAME(reader) \
xml::build_sptr(xmlTextReaderName(reader.get()))
/// Get the type of the current node of the shared_ptr<xmlTextReader>
/// passed in argument.
#define XML_READER_GET_NODE_TYPE(reader) \
static_cast<xmlReaderTypes> (xmlTextReaderNodeType(reader.get()))
/// Get the value of attribute 'name' on the current node of 'reader'
/// which is an instance of shared_ptr<xmlTextReader>.
#define XML_READER_GET_ATTRIBUTE(reader, name) \
xml::build_sptr(xmlTextReaderGetAttribute(reader.get(), BAD_CAST(name)))
/// Get the value of attribute 'name' ont the instance of xmlNodePtr
/// denoted by 'node'.
#define XML_NODE_GET_ATTRIBUTE(node, name) \
xml::build_sptr(xmlGetProp(node, BAD_CAST(name)))
#define CHAR_STR(xml_char_str) \
reinterpret_cast<char*>(xml_char_str.get())
xmlNodePtr
advance_to_next_sibling_element(xmlNodePtr node);
void
escape_xml_string(const std::string& str,
std::string& escaped);
std::string
escape_xml_string(const std::string& str);
void
escape_xml_comment(const std::string& str,
std::string& escaped);
std::string
escape_xml_comment(const std::string& str);
void
unescape_xml_string(const std::string& str,
std::string& escaped);
std::string
unescape_xml_string(const std::string& str);
void
unescape_xml_comment(const std::string& str,
std::string& escaped);
std::string
unescape_xml_comment(const std::string& str);
}//end namespace xml
namespace sptr_utils
{
/// Specialization of sptr_utils::build_sptr for xmlTextReader
template<>
xml::reader_sptr
build_sptr<xmlTextReader>(xmlTextReader *p);
/// Specialization of build_str for xmlChar.
template<>
xml::xml_char_sptr
build_sptr<xmlChar>(xmlChar *p);
}// end namespace sptr_utils
}//end namespace abigail
#endif //__ABG_LIBXML_UTILS_H__