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qpdf/libqpdf/QPDFValue.cc
2023-05-21 13:35:09 -04:00

63 lines
2.1 KiB
C++

#include <qpdf/QPDFValue.hh>
#include <qpdf/QPDFObject_private.hh>
std::shared_ptr<QPDFObject>
QPDFValue::do_create(QPDFValue* object)
{
std::shared_ptr<QPDFObject> obj(new QPDFObject());
obj->value = std::shared_ptr<QPDFValue>(object);
return obj;
}
std::string
QPDFValue::getDescription()
{
if (object_description) {
switch (object_description->index()) {
case 0:
{
// Simple template string
auto description = std::get<0>(*object_description);
if (auto pos = description.find("$OG"); pos != std::string::npos) {
description.replace(pos, 3, og.unparse(' '));
}
if (auto pos = description.find("$PO"); pos != std::string::npos) {
qpdf_offset_t shift = (type_code == ::ot_dictionary) ? 2
: (type_code == ::ot_array) ? 1
: 0;
description.replace(pos, 3, std::to_string(parsed_offset + shift));
}
return description;
}
case 1:
{
// QPDF::JSONReactor generated description
auto j_descr = std::get<1>(*object_description);
return (
*j_descr.input + (j_descr.object.empty() ? "" : ", " + j_descr.object) +
" at offset " + std::to_string(parsed_offset));
}
case 2:
{
// Child object description
auto j_descr = std::get<2>(*object_description);
std::string result;
if (auto p = j_descr.parent.lock()) {
result = p->getDescription();
}
result += j_descr.static_descr;
if (auto pos = result.find("$VD"); pos != std::string::npos) {
result.replace(pos, 3, j_descr.var_descr);
}
return result;
}
}
} else if (og.isIndirect()) {
return "object " + og.unparse(' ');
}
return {};
}