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#include <qpdf/QPDF_Name.hh>
#include <qpdf/JSON_writer.hh>
#include <qpdf/QUtil.hh>
QPDF_Name::QPDF_Name(std::string const& name) :
QPDFValue(::ot_name, "name"),
name(name)
{
}
std::shared_ptr<QPDFObject>
QPDF_Name::create(std::string const& name)
{
return do_create(new QPDF_Name(name));
}
std::shared_ptr<QPDFObject>
QPDF_Name::copy(bool shallow)
{
return create(name);
}
std::string
QPDF_Name::normalizeName(std::string const& name)
{
if (name.empty()) {
return name;
}
std::string result;
result += name.at(0);
for (size_t i = 1; i < name.length(); ++i) {
char ch = name.at(i);
// Don't use locale/ctype here; follow PDF spec guidelines.
if (ch == '\0') {
// QPDFTokenizer embeds a null character to encode an invalid #.
result += "#";
} else if (
ch < 33 || ch == '#' || ch == '/' || ch == '(' || ch == ')' || ch == '{' || ch == '}' ||
ch == '<' || ch == '>' || ch == '[' || ch == ']' || ch == '%' || ch > 126) {
result += QUtil::hex_encode_char(ch);
} else {
result += ch;
}
}
return result;
}
std::string
QPDF_Name::unparse()
{
return normalizeName(this->name);
}
JSON
QPDF_Name::getJSON(int json_version)
{
if (json_version == 1) {
return JSON::makeString(normalizeName(this->name));
} else {
bool has_8bit_chars;
bool is_valid_utf8;
bool is_utf16;
QUtil::analyze_encoding(this->name, has_8bit_chars, is_valid_utf8, is_utf16);
if (!has_8bit_chars || is_valid_utf8) {
return JSON::makeString(this->name);
} else {
return JSON::makeString("n:" + normalizeName(this->name));
}
}
}
void
QPDF_Name::writeJSON(int json_version, JSON::Writer& p)
{
if (json_version == 1) {
p << "\"" << JSON::Writer::encode_string(normalizeName(name)) << "\"";
} else {
bool has_8bit_chars;
bool is_valid_utf8;
bool is_utf16;
QUtil::analyze_encoding(this->name, has_8bit_chars, is_valid_utf8, is_utf16);
if (!has_8bit_chars || is_valid_utf8) {
p << "\"" << JSON::Writer::encode_string(name) << "\"";
} else {
p << "\"n:" << JSON::Writer::encode_string(normalizeName(name)) << "\"";
}
}
}
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