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