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begin cleaning up xml handling in consumer

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This commit is contained in:
Thomas Fussell 2016-11-19 16:42:16 -05:00
parent 8bd725f2fa
commit dab1b0218d
10 changed files with 314 additions and 222 deletions
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2
include/xlnt/packaging/manifest.hpp
View File

@ -88,7 +88,7 @@ public:
/// Returns the canonical path of the chain of relationships by traversing through rels
/// and forming the absolute combined path.
/// </summary>
path canonicalize(const std::vector<relationship> &rels);
path canonicalize(const std::vector<relationship> &rels) const;
/// <summary>
///

2
include/xlnt/packaging/relationship.hpp
View File

@ -83,7 +83,7 @@ enum class XLNT_API relationship_type
revision_log,
shared_workbook_user_data,
single_cell_table_definitions,
styles,
stylesheet,
table_definition,
vml_drawing,
volatile_dependencies,

2
source/detail/custom_value_traits.cpp
View File

@ -43,7 +43,7 @@ std::string to_string(relationship::type t)
return "http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet";
case relationship::type::shared_string_table:
return "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings";
case relationship::type::styles:
case relationship::type::stylesheet:
return "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";
case relationship::type::theme:
return "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme";

2
source/detail/custom_value_traits.hpp
View File

@ -118,7 +118,7 @@ struct value_traits<xlnt::relationship_type>
relationship_type::shared_workbook_revision_headers,
relationship_type::shared_workbook_user_data,
relationship_type::single_cell_table_definitions,
relationship_type::styles,
relationship_type::stylesheet,
relationship_type::table_definition,
relationship_type::theme,
relationship_type::thumbnail,

486
source/detail/xlsx_consumer.cpp
View File

@ -36,6 +36,20 @@
#include <xlnt/workbook/workbook.hpp>
#include <xlnt/worksheet/worksheet.hpp>
namespace std {
template <>
struct hash<xml::qname>
{
std::size_t operator()(const xml::qname& k) const
{
static std::hash<std::string> hasher;
return hasher(k.string());
}
};
} // namespace std
namespace {
bool is_true(const std::string &bool_string)
@ -161,20 +175,33 @@ xml::parser &xlsx_consumer::parser()
return *parser_;
}
void xlsx_consumer::populate_workbook()
void xlsx_consumer::read_part(const std::vector<relationship> &rel_chain)
{
target_.clear();
auto &manifest = target_.get_manifest();
read_manifest();
for (const auto &rel : manifest.get_relationships(path("/")))
const auto using_namespaces = std::vector<relationship::type>
{
xml::parser parser(archive_->open(rel.get_target().get_path().string()),
rel.get_target().get_path().string());
relationship::type::office_document,
relationship::type::stylesheet,
relationship::type::chartsheet,
relationship::type::dialogsheet,
relationship::type::worksheet
};
auto receive = xml::parser::receive_default;
auto receive_namespaces = std::find(using_namespaces.begin(), using_namespaces.end(),
rel_chain.back().get_type()) != using_namespaces.end();
if (receive_namespaces)
{
receive |= xml::parser::receive_namespace_decls;
}
const auto &manifest = target_.get_manifest();
auto part_path = manifest.canonicalize(rel_chain);
auto &stream = archive_->open(part_path.string());
xml::parser parser(stream, part_path.string(), receive);
parser_ = &parser;
switch (rel.get_type())
switch (rel_chain.back().get_type())
{
case relationship::type::core_properties:
read_core_properties();
@ -189,7 +216,7 @@ void xlsx_consumer::populate_workbook()
break;
case relationship::type::office_document:
check_document_type(manifest.get_content_type(rel.get_target().get_path()));
check_document_type(manifest.get_content_type(part_path));
read_workbook();
break;
@ -221,58 +248,11 @@ void xlsx_consumer::populate_workbook()
read_volatile_dependencies();
break;
case relationship::type::thumbnail: break;
case relationship::type::calculation_chain: break;
case relationship::type::worksheet: break;
case relationship::type::shared_string_table: break;
case relationship::type::styles: break;
case relationship::type::theme: break;
case relationship::type::hyperlink: break;
case relationship::type::chartsheet: break;
case relationship::type::comments: break;
case relationship::type::vml_drawing: break;
case relationship::type::unknown: break;
case relationship::type::printer_settings: break;
case relationship::type::custom_property: break;
case relationship::type::dialogsheet: break;
case relationship::type::drawings: break;
case relationship::type::pivot_table_cache_definition: break;
case relationship::type::pivot_table_cache_records: break;
case relationship::type::query_table: break;
case relationship::type::shared_workbook: break;
case relationship::type::revision_log: break;
case relationship::type::shared_workbook_user_data: break;
case relationship::type::single_cell_table_definitions: break;
case relationship::type::table_definition: break;
case relationship::type::image: break;
}
parser_ = nullptr;
}
const auto workbook_rel = manifest.get_relationship(path("/"), relationship::type::office_document);
// First pass of workbook relationship parts which must be read before sheets (e.g. shared strings)
for (const auto &rel : manifest.get_relationships(workbook_rel.get_target().get_path()))
{
path part_path(rel.get_source().get_path().parent().append(rel.get_target().get_path()));
auto receive = xml::parser::receive_default;
auto using_namespaces = rel.get_type() == relationship::type::styles;
if (using_namespaces)
{
receive |= xml::parser::receive_namespace_decls;
}
xml::parser parser(archive_->open(part_path.string()), part_path.string(), receive);
parser_ = &parser;
switch (rel.get_type())
{
case relationship::type::shared_string_table:
read_shared_string_table();
break;
case relationship::type::styles:
case relationship::type::stylesheet:
read_stylesheet();
break;
@ -280,108 +260,108 @@ void xlsx_consumer::populate_workbook()
read_theme();
break;
case relationship::type::office_document: break;
case relationship::type::thumbnail: break;
case relationship::type::calculation_chain: break;
case relationship::type::extended_properties: break;
case relationship::type::core_properties: break;
case relationship::type::worksheet: break;
case relationship::type::hyperlink: break;
case relationship::type::chartsheet: break;
case relationship::type::comments: break;
case relationship::type::vml_drawing: break;
case relationship::type::unknown: break;
case relationship::type::custom_properties: break;
case relationship::type::printer_settings: break;
case relationship::type::connections: break;
case relationship::type::custom_property: break;
case relationship::type::custom_xml_mappings: break;
case relationship::type::dialogsheet: break;
case relationship::type::drawings: break;
case relationship::type::external_workbook_references: break;
case relationship::type::metadata: break;
case relationship::type::pivot_table: break;
case relationship::type::pivot_table_cache_definition: break;
case relationship::type::pivot_table_cache_records: break;
case relationship::type::query_table: break;
case relationship::type::shared_workbook_revision_headers: break;
case relationship::type::shared_workbook: break;
case relationship::type::revision_log: break;
case relationship::type::shared_workbook_user_data: break;
case relationship::type::single_cell_table_definitions: break;
case relationship::type::table_definition: break;
case relationship::type::volatile_dependencies: break;
case relationship::type::image: break;
}
parser_ = nullptr;
}
// Second pass, read sheets themselves
for (const auto &rel : manifest.get_relationships(workbook_rel.get_target().get_path()))
{
path part_path(rel.get_source().get_path().parent().append(rel.get_target().get_path()));
auto receive = xml::parser::receive_default;
receive |= xml::parser::receive_namespace_decls;
xml::parser parser(archive_->open(part_path.string()), rel.get_target().get_path().string(), receive);
parser_ = &parser;
switch (rel.get_type())
{
case relationship::type::chartsheet:
read_chartsheet(rel.get_id());
read_chartsheet(rel_chain.back().get_id());
break;
case relationship::type::dialogsheet:
read_dialogsheet(rel.get_id());
read_dialogsheet(rel_chain.back().get_id());
break;
case relationship::type::worksheet:
read_worksheet(rel.get_id());
read_worksheet(rel_chain.back().get_id());
break;
case relationship::type::office_document: break;
case relationship::type::thumbnail: break;
case relationship::type::calculation_chain: break;
case relationship::type::extended_properties: break;
case relationship::type::core_properties: break;
case relationship::type::shared_string_table: break;
case relationship::type::styles: break;
case relationship::type::theme: break;
case relationship::type::hyperlink: break;
case relationship::type::comments: break;
case relationship::type::vml_drawing: break;
case relationship::type::unknown: break;
case relationship::type::custom_properties: break;
case relationship::type::printer_settings: break;
case relationship::type::connections: break;
case relationship::type::custom_property: break;
case relationship::type::custom_xml_mappings: break;
case relationship::type::drawings: break;
case relationship::type::external_workbook_references: break;
case relationship::type::metadata: break;
case relationship::type::pivot_table: break;
case relationship::type::pivot_table_cache_definition: break;
case relationship::type::pivot_table_cache_records: break;
case relationship::type::query_table: break;
case relationship::type::shared_workbook_revision_headers: break;
case relationship::type::shared_workbook: break;
case relationship::type::revision_log: break;
case relationship::type::shared_workbook_user_data: break;
case relationship::type::single_cell_table_definitions: break;
case relationship::type::table_definition: break;
case relationship::type::volatile_dependencies: break;
case relationship::type::image: break;
}
parser_ = nullptr;
}
// Unknown Parts
void xlsx_consumer::populate_workbook()
{
target_.clear();
void read_unknown_parts();
void read_unknown_relationships();
read_manifest();
auto &manifest = target_.get_manifest();
auto package_parts = std::vector<relationship::type>
{
relationship::type::core_properties,
relationship::type::extended_properties,
relationship::type::custom_properties,
relationship::type::office_document,
relationship::type::connections,
relationship::type::custom_xml_mappings,
relationship::type::external_workbook_references,
relationship::type::metadata,
relationship::type::pivot_table,
relationship::type::shared_workbook_revision_headers,
relationship::type::volatile_dependencies
};
auto root_path = path("/");
for (auto rel_type : package_parts)
{
if (manifest.has_relationship(root_path, rel_type))
{
read_part({ manifest.get_relationship(root_path, rel_type) });
}
}
const auto workbook_rel = manifest.get_relationship(root_path,
relationship::type::office_document);
const auto workbook_parts_first = std::vector<relationship::type>
{
relationship::type::shared_string_table,
relationship::type::stylesheet,
relationship::type::theme
};
for (auto rel_type : workbook_parts_first)
{
if (manifest.has_relationship(workbook_rel.get_target().get_path(), rel_type))
{
read_part({ workbook_rel, manifest.get_relationship(workbook_rel.get_target().get_path(), rel_type) });
}
}
const auto workbook_parts_second = std::vector<relationship::type>
{
relationship::type::worksheet,
relationship::type::chartsheet,
relationship::type::dialogsheet
};
for (auto rel_type : workbook_parts_second)
{
if (manifest.has_relationship(workbook_rel.get_target().get_path(), rel_type))
{
for (auto rel : manifest.get_relationships(workbook_rel.get_target().get_path(), rel_type))
{
read_part({ workbook_rel, rel });
}
}
}
}
// Package Parts
@ -467,80 +447,128 @@ void xlsx_consumer::read_extended_properties()
parser().next_expect(xml::parser::event_type::start_element, xmlns, "Properties");
parser().content(xml::parser::content_type::complex);
while (true)
read_block(
{
if (parser().peek() == xml::parser::event_type::end_element) break;
parser().next_expect(xml::parser::event_type::start_element);
auto name = parser().name();
auto text = std::string();
while (parser().peek() == xml::parser::event_type::characters)
{
parser().next_expect(xml::parser::event_type::characters);
text.append(parser().value());
xml::qname(xmlns, "Application"),
[](xlsx_consumer &c)
{
c.target_.set_application(c.read_text());
}
},
{
xml::qname(xmlns, "DocSecurity"),
[](xlsx_consumer &c)
{
c.target_.set_doc_security(std::stoi(c.read_text()));
}
},
{
xml::qname(xmlns, "ScaleCrop"),
[](xlsx_consumer &c)
{
c.target_.set_scale_crop(is_true(c.read_text()));
}
},
{
xml::qname(xmlns, "Company"),
[](xlsx_consumer &c)
{
c.target_.set_company(c.read_text());
}
},
{
xml::qname(xmlns, "SharedDoc"),
[](xlsx_consumer &c)
{
c.target_.set_shared_doc(is_true(c.read_text()));
}
},
{
xml::qname(xmlns, "HyperlinksChanged"),
[](xlsx_consumer &c)
{
c.target_.set_hyperlinks_changed(is_true(c.read_text()));
}
},
{
xml::qname(xmlns, "AppVersion"),
[](xlsx_consumer &c)
{
c.target_.set_app_version(c.read_text());
}
},
{
xml::qname(xmlns, "LinksUpToDate"),
[](xlsx_consumer &c)
{
c.target_.set_links_up_to_date(is_true(c.read_text()));
}
},
{
xml::qname(xmlns, "Template"),
[](xlsx_consumer &c)
{
c.read_text();
}
},
{
xml::qname(xmlns, "TotalTime"),
[](xlsx_consumer &c)
{
c.read_text();
}
},
{
xml::qname(xmlns, "HeadingPairs"),
[](xlsx_consumer &c)
{
c.parser().content(xml::parser::content_type::complex);
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "vector");
c.parser().content(xml::parser::content_type::complex);
c.parser().attribute("size");
c.parser().attribute("baseType");
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "variant");
c.parser().content(xml::parser::content_type::complex);
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "lpstr");
c.parser().next_expect(xml::parser::event_type::characters);
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "lpstr");
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "variant");
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "variant");
c.parser().content(xml::parser::content_type::complex);
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "i4");
c.parser().next_expect(xml::parser::event_type::characters);
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "i4");
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "variant");
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "vector");
}
},
{
xml::qname(xmlns, "TitlesOfParts"),
[](xlsx_consumer &c)
{
c.parser().content(xml::parser::content_type::complex);
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "vector");
c.parser().content(xml::parser::content_type::complex);
auto size = c.parser().attribute<std::size_t>("size");
c.parser().attribute("baseType");
for (auto i = std::size_t(0); i < size; ++i)
{
c.parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "lpstr");
c.parser().content(xml::parser::content_type::simple);
c.parser().next_expect(xml::parser::event_type::characters);
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "lpstr");
}
if (name == "Application") target_.set_application(text);
else if (name == "DocSecurity") target_.set_doc_security(std::stoi(text));
else if (name == "ScaleCrop") target_.set_scale_crop(is_true(text));
else if (name == "Company") target_.set_company(text);
else if (name == "SharedDoc") target_.set_shared_doc(is_true(text));
else if (name == "HyperlinksChanged") target_.set_hyperlinks_changed(is_true(text));
else if (name == "AppVersion") target_.set_app_version(text);
else if (name == "Application") target_.set_application(text);
else if (name == "HeadingPairs")
{
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "vector");
parser().content(xml::parser::content_type::complex);
parser().attribute("size");
parser().attribute("baseType");
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "variant");
parser().content(xml::parser::content_type::complex);
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "lpstr");
parser().next_expect(xml::parser::event_type::characters);
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "lpstr");
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "variant");
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "variant");
parser().content(xml::parser::content_type::complex);
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "i4");
parser().next_expect(xml::parser::event_type::characters);
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "i4");
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "variant");
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "vector");
}
else if (name == "TitlesOfParts")
{
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "vector");
parser().content(xml::parser::content_type::complex);
parser().attribute("size");
parser().attribute("baseType");
while (true)
{
if (parser().peek() == xml::parser::event_type::end_element) break;
parser().next_expect(xml::parser::event_type::start_element, xmlns_vt, "lpstr");
parser().content(xml::parser::content_type::simple);
parser().next_expect(xml::parser::event_type::characters);
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "lpstr");
}
parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "vector");
}
while (parser().peek() == xml::parser::event_type::characters)
{
parser().next_expect(xml::parser::event_type::characters);
}
parser().next_expect(xml::parser::event_type::end_element);
c.parser().next_expect(xml::parser::event_type::end_element, xmlns_vt, "vector");
}
},
});
}
void xlsx_consumer::read_core_properties()
@ -613,8 +641,11 @@ void xlsx_consumer::read_workbook()
while (parser().peek() == xml::parser::event_type::start_namespace_decl)
{
parser().next_expect(xml::parser::event_type::start_namespace_decl);
if (parser().name() == "x15") target_.enable_x15();
parser().next_expect(xml::parser::event_type::end_namespace_decl);
if (parser().namespace_() == xmlns_x15)
{
target_.enable_x15();
}
}
if (parser().attribute_present(xml::qname(xmlns_mc, "Ignorable")))
@ -624,7 +655,8 @@ void xlsx_consumer::read_workbook()
while (true)
{
if (parser().peek() == xml::parser::event_type::end_element) break;
if (parser().peek() == xml::parser::event_type::end_element
|| parser().peek() == xml::parser::event_type::end_namespace_decl) break;
parser().next_expect(xml::parser::event_type::start_element);
parser().content(xml::parser::content_type::complex);
@ -652,14 +684,31 @@ void xlsx_consumer::read_workbook()
}
else if (qname == xml::qname(xmlns_mc, "AlternateContent"))
{
if (parser().peek() == xml::parser::event_type::start_namespace_decl)
{
parser().next_expect(xml::parser::event_type::start_namespace_decl);
}
parser().next_expect(xml::parser::event_type::start_element, xmlns_mc, "Choice");
parser().content(xml::parser::content_type::complex);
parser().attribute("Requires");
parser().next_expect(xml::parser::event_type::start_element, xmlns_x15ac, "absPath");
target_.set_absolute_path(path(parser().attribute("url")));
if (parser().peek() == xml::parser::event_type::start_namespace_decl)
{
parser().next_expect(xml::parser::event_type::start_namespace_decl);
parser().next_expect(xml::parser::event_type::end_namespace_decl);
}
parser().next_expect(xml::parser::event_type::end_element, xmlns_x15ac, "absPath");
parser().next_expect(xml::parser::event_type::end_element, xmlns_mc, "Choice");
parser().next_expect(xml::parser::event_type::end_element, xmlns_mc, "AlternateContent");
if (parser().peek() == xml::parser::event_type::end_namespace_decl)
{
parser().next_expect(xml::parser::event_type::end_namespace_decl);
}
}
else if (qname == xml::qname(xmlns, "bookViews"))
{
@ -821,6 +870,7 @@ void xlsx_consumer::read_workbook()
{
if (parser().peek() == xml::parser::event_type::end_element) break;
parser().next_expect(xml::parser::event_type::start_namespace_decl);
parser().next_expect(xml::parser::event_type::start_element);
if (parser().qname() == xml::qname(xmlns_mx, "ArchID"))
@ -842,6 +892,7 @@ void xlsx_consumer::read_workbook()
}
parser().next_expect(xml::parser::event_type::end_element, xmlns, "ext");
parser().next_expect(xml::parser::event_type::end_namespace_decl);
parser().next_expect(xml::parser::event_type::end_element, xmlns, "extLst");
}
else if (qname == xml::qname(xmlns, "workbookProtection"))
@ -2302,5 +2353,40 @@ void xlsx_consumer::read_unknown_relationships()
{
}
std::string xlsx_consumer::read_text()
{
auto text = std::string();
while (parser().peek() == xml::parser::event_type::characters)
{
parser().next_expect(xml::parser::event_type::characters);
text.append(parser().value());
}
return text;
}
void xlsx_consumer::read_block(const std::unordered_map<xml::qname, std::function<void(xlsx_consumer &)>> &handlers)
{
auto parent_block = parser().qname();
while (parser().peek() != xml::parser::event_type::end_element)
{
parser().next_expect(xml::parser::event_type::start_element);
auto block = parser().qname();
if (handlers.count(block) == 0)
{
throw xlnt::key_not_found();
}
const auto &handler = handlers.at(block);
handler(*this);
parser().next_expect(xml::parser::event_type::end_element, block);
}
parser().next_expect(xml::parser::event_type::end_element, parent_block);
}
} // namespace detail
} // namepsace xlnt

6
source/detail/xlsx_consumer.hpp
View File

@ -219,6 +219,12 @@ private:
/// </summary>
void read_unknown_relationships();
std::string read_text();
void read_block(const std::unordered_map<xml::qname, std::function<void(xlsx_consumer &)>> &handlers);
void read_part(const std::vector<relationship> &rel_chain);
/// <summary>
/// The ZIP file containing the files that make up the OOXML package.
/// </summary>

8
source/detail/xlsx_producer.cpp
View File

@ -133,7 +133,7 @@ void xlsx_producer::populate_archive()
case relationship::type::calculation_chain: break;
case relationship::type::worksheet: break;
case relationship::type::shared_string_table: break;
case relationship::type::styles: break;
case relationship::type::stylesheet: break;
case relationship::type::theme: break;
case relationship::type::hyperlink: break;
case relationship::type::chartsheet: break;
@ -408,8 +408,8 @@ void xlsx_producer::write_workbook(const relationship &rel)
serializer().start_element(xmlns_x15ac, "absPath");
serializer().namespace_decl(xmlns_x15ac, "x15ac");
serializer().attribute("url", source_.get_absolute_path().string());
serializer().end_element(xmlns_x15ac, "absPath");
serializer().end_element(xmlns_mc, "Choice");
serializer().end_element(xmlns_mc, "AlternateContent");
}
@ -586,7 +586,7 @@ void xlsx_producer::write_workbook(const relationship &rel)
write_shared_workbook_revision_headers(child_rel);
break;
case relationship::type::styles:
case relationship::type::stylesheet:
write_styles(child_rel);
break;
@ -2364,7 +2364,7 @@ void xlsx_producer::write_worksheet(const relationship &rel)
case relationship::type::core_properties: break;
case relationship::type::worksheet: break;
case relationship::type::shared_string_table: break;
case relationship::type::styles: break;
case relationship::type::stylesheet: break;
case relationship::type::theme: break;
case relationship::type::hyperlink: break;
case relationship::type::chartsheet: break;

2
source/packaging/manifest.cpp
View File

@ -37,7 +37,7 @@ void manifest::clear()
relationships_.clear();
}
path manifest::canonicalize(const std::vector<relationship> &rels)
path manifest::canonicalize(const std::vector<relationship> &rels) const
{
xlnt::path relative;

4
source/workbook/workbook.cpp
View File

@ -450,12 +450,12 @@ void workbook::register_stylesheet_in_manifest()
{
auto wb_rel = get_manifest().get_relationship(path("/"), relationship_type::office_document);
if (!get_manifest().has_relationship(wb_rel.get_target().get_path(), relationship_type::styles))
if (!get_manifest().has_relationship(wb_rel.get_target().get_path(), relationship_type::stylesheet))
{
get_manifest().register_override_type(constants::part_styles(),
"application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml");
get_manifest().register_relationship(wb_rel.get_target(),
relationship::type::styles, uri("styles.xml"), target_mode::internal);
relationship::type::stylesheet, uri("styles.xml"), target_mode::internal);
}
}