/usr/include/osmium/output/xml.hpp is in libosmium-dev 0.0~20140910-9a069af-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define OSMIUM_OUTPUT_XML_HPP
/*
Copyright 2012 Jochen Topf <jochen@topf.org> and others (see README).
This file is part of Osmium (https://github.com/joto/osmium).
Osmium is free software: you can redistribute it and/or modify it under the
terms of the GNU Lesser General Public License or (at your option) the GNU
General Public License as published by the Free Software Foundation, either
version 3 of the Licenses, or (at your option) any later version.
Osmium 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 and the GNU
General Public License for more details.
You should have received a copy of the Licenses along with Osmium. If not, see
<http://www.gnu.org/licenses/>.
*/
#define OSMIUM_COMPILE_WITH_CFLAGS_XML2 `xml2-config --cflags`
#define OSMIUM_LINK_WITH_LIBS_XML2 `xml2-config --libs`
// this is required to allow using libxml's xmlwriter in parallel to expat xml parser under debian
#undef XMLCALL
#include <libxml/xmlwriter.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#include <osmium/output.hpp>
namespace Osmium {
namespace Output {
struct XMLWriteError {};
namespace {
void check_for_error(int count) {
if (count < 0) {
throw XMLWriteError();
}
}
}
class XML : public Base {
// objects of this class can't be copied
XML(const XML&);
XML& operator=(const XML&);
public:
XML(const Osmium::OSMFile& file) :
Base(file),
m_xml_output_buffer(xmlOutputBufferCreateFd(this->fd(), NULL)),
m_xml_writer(xmlNewTextWriter(m_xml_output_buffer)),
m_last_op('\0') {
if (!m_xml_output_buffer || !m_xml_writer) {
throw XMLWriteError();
}
}
void init(Osmium::OSM::Meta& meta) {
check_for_error(xmlTextWriterSetIndent(m_xml_writer, 1));
check_for_error(xmlTextWriterSetIndentString(m_xml_writer, BAD_CAST " "));
check_for_error(xmlTextWriterStartDocument(m_xml_writer, NULL, NULL, NULL)); // <?xml .. ?>
if (m_file.type() == Osmium::OSMFile::FileType::Change()) {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "osmChange")); // <osmChange>
} else {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "osm")); // <osm>
}
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "version", BAD_CAST "0.6"));
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "generator", BAD_CAST m_generator.c_str()));
if (meta.bounds().defined()) {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "bounds")); // <bounds>
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "minlon", "%.7f", meta.bounds().bottom_left().lon()));
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "minlat", "%.7f", meta.bounds().bottom_left().lat()));
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "maxlon", "%.7f", meta.bounds().top_right().lon()));
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "maxlat", "%.7f", meta.bounds().top_right().lat()));
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </bounds>
}
}
void node(const shared_ptr<Osmium::OSM::Node const>& node) {
if (m_file.type() == Osmium::OSMFile::FileType::Change()) {
open_close_op_tag(node->visible() ? (node->version() == 1 ? 'c' : 'm') : 'd');
}
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "node")); // <node>
write_meta(node);
if (node->position().defined()) {
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "lat", "%.7f", node->position().lat()));
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "lon", "%.7f", node->position().lon()));
}
write_tags(node->tags());
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </node>
}
void way(const shared_ptr<Osmium::OSM::Way const>& way) {
if (m_file.type() == Osmium::OSMFile::FileType::Change()) {
open_close_op_tag(way->visible() ? (way->version() == 1 ? 'c' : 'm') : 'd');
}
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "way")); // <way>
write_meta(way);
Osmium::OSM::WayNodeList::const_iterator end = way->nodes().end();
for (Osmium::OSM::WayNodeList::const_iterator it = way->nodes().begin(); it != end; ++it) {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "nd")); // <nd>
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "ref", "%" PRId64, it->ref()));
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </nd>
}
write_tags(way->tags());
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </way>
}
void relation(const shared_ptr<Osmium::OSM::Relation const>& relation) {
if (m_file.type() == Osmium::OSMFile::FileType::Change()) {
open_close_op_tag(relation->visible() ? (relation->version() == 1 ? 'c' : 'm') : 'd');
}
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "relation")); // <relation>
write_meta(relation);
Osmium::OSM::RelationMemberList::const_iterator end = relation->members().end();
for (Osmium::OSM::RelationMemberList::const_iterator it = relation->members().begin(); it != end; ++it) {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "member")); // <member>
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "type", BAD_CAST it->type_name()));
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "ref", "%" PRId64, it->ref()));
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "role", BAD_CAST it->role()));
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </member>
}
write_tags(relation->tags());
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </relation>
}
void final() {
if (m_file.type() == Osmium::OSMFile::FileType::Change()) {
open_close_op_tag('\0');
}
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </osm> or </osmChange>
xmlFreeTextWriter(m_xml_writer);
m_file.close();
}
private:
xmlOutputBufferPtr m_xml_output_buffer;
xmlTextWriterPtr m_xml_writer;
char m_last_op;
void write_meta(const shared_ptr<Osmium::OSM::Object const>& object) {
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "id", "%" PRId64, object->id()));
if (object->version()) {
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "version", "%d", object->version()));
}
if (object->timestamp()) {
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "timestamp", BAD_CAST object->timestamp_as_string().c_str()));
}
// uid <= 0 -> anonymous
if (object->uid() > 0) {
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "uid", "%d", object->uid()));
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "user", BAD_CAST object->user()));
}
if (object->changeset()) {
check_for_error(xmlTextWriterWriteFormatAttribute(m_xml_writer, BAD_CAST "changeset", "%d", object->changeset()));
}
if (m_file.has_multiple_object_versions() && m_file.type() != Osmium::OSMFile::FileType::Change()) {
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "visible", object->visible() ? BAD_CAST "true" : BAD_CAST "false"));
}
}
void write_tags(const Osmium::OSM::TagList& tags) {
Osmium::OSM::TagList::const_iterator end = tags.end();
for (Osmium::OSM::TagList::const_iterator it = tags.begin(); it != end; ++it) {
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "tag")); // <tag>
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "k", BAD_CAST it->key()));
check_for_error(xmlTextWriterWriteAttribute(m_xml_writer, BAD_CAST "v", BAD_CAST it->value()));
check_for_error(xmlTextWriterEndElement(m_xml_writer)); // </tag>
}
}
void open_close_op_tag(const char op) {
if (op == m_last_op) {
return;
}
if (m_last_op) {
check_for_error(xmlTextWriterEndElement(m_xml_writer));
}
switch (op) {
case 'c':
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "create"));
break;
case 'm':
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "modify"));
break;
case 'd':
check_for_error(xmlTextWriterStartElement(m_xml_writer, BAD_CAST "delete"));
break;
}
m_last_op = op;
}
}; // class XML
namespace {
inline Osmium::Output::Base* CreateOutputXML(const Osmium::OSMFile& file) {
return new Osmium::Output::XML(file);
}
const bool xml_registered = Osmium::Output::Factory::instance().register_output_format(Osmium::OSMFile::FileEncoding::XML(), CreateOutputXML) &&
Osmium::Output::Factory::instance().register_output_format(Osmium::OSMFile::FileEncoding::XMLgz(), CreateOutputXML) &&
Osmium::Output::Factory::instance().register_output_format(Osmium::OSMFile::FileEncoding::XMLbz2(), CreateOutputXML);
} // namespace
} // namespace Output
} // namespace Osmium
#endif // OSMIUM_OUTPUT_XML_HPP
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