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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "gnumeric_detection_handler.hpp"
#include "gnumeric_namespace_types.hpp"
#include "gnumeric_token_constants.hpp"
#include "xml_context_base.hpp"
#include "detection_result.hpp"
namespace orcus {
namespace {
/**
* Check the xml structure up to the first <gnm:Sheet> element. If all the
* structure check passes up to that point, we call it "detected".
*/
class gnumeric_detection_context : public xml_context_base
{
public:
gnumeric_detection_context(session_context& session_cxt, const tokens& tokens) :
xml_context_base(session_cxt, tokens) {}
virtual xml_context_base* create_child_context(xmlns_id_t, xml_token_t) { return nullptr; }
virtual void characters(std::string_view, bool) {}
virtual void end_child_context(xmlns_id_t, xml_token_t, xml_context_base*) {}
virtual void start_element(xmlns_id_t ns, xml_token_t name, const::std::vector<xml_token_attr_t>& /*attrs*/)
{
xml_token_pair_t parent = push_stack(ns, name);
if (ns == NS_gnumeric_gnm)
{
switch (name)
{
case XML_Workbook:
xml_element_expected(parent, XMLNS_UNKNOWN_ID, XML_UNKNOWN_TOKEN);
break;
case XML_Version:
case XML_Attributes:
case XML_Calculation:
case XML_SheetNameIndex:
case XML_Geometry:
case XML_Sheets:
xml_element_expected(parent, NS_gnumeric_gnm, XML_Workbook);
break;
case XML_Attribute:
xml_element_expected(parent, NS_gnumeric_gnm, XML_Attributes);
break;
case XML_SheetName:
xml_element_expected(parent, NS_gnumeric_gnm, XML_SheetNameIndex);
break;
case XML_Sheet:
xml_element_expected(parent, NS_gnumeric_gnm, XML_Sheets);
throw detection_result(true);
break;
default:
;
}
}
}
virtual bool end_element(xmlns_id_t ns, xml_token_t name)
{
return pop_stack(ns, name);
}
};
}
gnumeric_detection_handler::gnumeric_detection_handler(session_context& session_cxt, const tokens& t) :
xml_stream_handler(session_cxt, t, std::make_unique<gnumeric_detection_context>(session_cxt, t)) {}
gnumeric_detection_handler::~gnumeric_detection_handler() {}
void gnumeric_detection_handler::start_document() {}
void gnumeric_detection_handler::end_document() {}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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