mirror of https://github.com/qpdf/qpdf.git
Refactor QPDF::writeJSON
This commit is contained in:
m-holger
parent
b9bc05356a
commit
c06653c3ab
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@ -848,48 +848,6 @@ writeJSONStreamFile(
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fclose(f);
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}
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void
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writeJSONStream(
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int version,
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Pipeline* p,
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bool& first,
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std::string const& key,
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QPDF_Stream& stream,
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int id,
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qpdf_stream_decode_level_e decode_level,
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qpdf_json_stream_data_e json_stream_data,
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std::string const& file_prefix)
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{
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if (first) {
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*p << "\n \"" << key << "\": {\n \"stream\": ";
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first = false;
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} else {
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*p << ",\n \"" << key << "\": {\n \"stream\": ";
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}
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JSON::Writer jw{p, 4};
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if (json_stream_data == qpdf_sj_file) {
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writeJSONStreamFile(version, jw, stream, id, decode_level, file_prefix);
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} else {
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stream.writeStreamJSON(version, jw, json_stream_data, decode_level, nullptr, "");
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}
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*p << "\n }";
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}
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void
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writeJSONObject(
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int version, Pipeline* p, bool& first, std::string const& key, QPDFObjectHandle& obj)
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{
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if (first) {
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*p << "\n \"" << key << "\": {\n \"value\": ";
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first = false;
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} else {
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*p << ",\n \"" << key << "\": {\n \"value\": ";
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}
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auto w = JSON::Writer(p, 4);
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obj.writeJSON(version, w, true);
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*p << "\n }";
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}
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void
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QPDF::writeJSON(
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int version,
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@ -914,82 +872,75 @@ QPDF::writeJSON(
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std::string const& file_prefix,
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std::set<std::string> wanted_objects)
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{
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int const depth_outer = 1;
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int const depth_top = 1;
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int const depth_qpdf = 2;
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int const depth_qpdf_inner = 3;
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if (version != 2) {
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throw std::runtime_error("QPDF::writeJSON: only version 2 is supported");
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}
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bool first = true;
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JSON::Writer jw{p, 4};
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if (complete) {
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JSON::writeDictionaryOpen(p, first, depth_outer);
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} else {
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first = first_key;
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jw << "{";
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} else if (!first_key) {
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jw << ",";
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}
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JSON::writeDictionaryKey(p, first, "qpdf", depth_top);
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bool first_qpdf = true;
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JSON::writeArrayOpen(p, first_qpdf, depth_top);
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JSON::writeNext(p, first_qpdf, depth_qpdf);
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bool first_qpdf_inner = true;
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JSON::writeDictionaryOpen(p, first_qpdf_inner, depth_qpdf);
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JSON::writeDictionaryItem(
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p, first_qpdf_inner, "jsonversion", JSON::makeInt(version), depth_qpdf_inner);
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JSON::writeDictionaryItem(
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p, first_qpdf_inner, "pdfversion", JSON::makeString(getPDFVersion()), depth_qpdf_inner);
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JSON::writeDictionaryItem(
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p,
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first_qpdf_inner,
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"pushedinheritedpageresources",
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JSON::makeBool(everPushedInheritedAttributesToPages()),
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depth_qpdf_inner);
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JSON::writeDictionaryItem(
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p,
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first_qpdf_inner,
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"calledgetallpages",
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JSON::makeBool(everCalledGetAllPages()),
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depth_qpdf_inner);
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JSON::writeDictionaryItem(
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p,
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first_qpdf_inner,
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"maxobjectid",
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JSON::makeInt(QIntC::to_longlong(getObjectCount())),
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depth_qpdf_inner);
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JSON::writeDictionaryClose(p, first_qpdf_inner, depth_qpdf);
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JSON::writeNext(p, first_qpdf, depth_qpdf);
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JSON::writeDictionaryOpen(p, first_qpdf_inner, depth_qpdf);
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first_key = false;
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/* clang-format off */
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jw << "\n"
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" \"qpdf\": [\n"
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" {\n"
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" \"jsonversion\": " << std::to_string(version) << ",\n"
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" \"pdfversion\": \"" << getPDFVersion() << "\",\n"
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" \"pushedinheritedpageresources\": " << (everPushedInheritedAttributesToPages() ? "true" : "false") << ",\n"
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" \"calledgetallpages\": " << (everCalledGetAllPages() ? "true" : "false") << ",\n"
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" \"maxobjectid\": " << std::to_string(getObjectCount()) << "\n"
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" },\n"
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" {";
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/* clang-format on */
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bool all_objects = wanted_objects.empty();
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bool first = true;
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for (auto& obj: getAllObjects()) {
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auto const og = obj.getObjGen();
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std::string key = "obj:" + og.unparse(' ') + " R";
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if (all_objects || wanted_objects.count(key)) {
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if (auto* stream = obj.getObjectPtr()->as<QPDF_Stream>()) {
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writeJSONStream(
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version,
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p,
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first_qpdf_inner,
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key,
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*stream,
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og.getObj(),
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decode_level,
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json_stream_data,
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file_prefix);
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if (first) {
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jw << "\n \"" << key;
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first = false;
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} else {
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writeJSONObject(version, p, first_qpdf_inner, key, obj);
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jw << "\n },\n \"" << key;
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}
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if (auto* stream = obj.getObjectPtr()->as<QPDF_Stream>()) {
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jw << "\": {\n \"stream\": ";
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if (json_stream_data == qpdf_sj_file) {
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writeJSONStreamFile(
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version, jw, *stream, og.getObj(), decode_level, file_prefix);
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} else {
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stream->writeStreamJSON(
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version, jw, json_stream_data, decode_level, nullptr, "");
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}
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} else {
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jw << "\": {\n \"value\": ";
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obj.writeJSON(version, jw, true);
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}
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}
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}
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if (all_objects || wanted_objects.count("trailer")) {
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auto trailer = getTrailer();
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writeJSONObject(version, p, first_qpdf_inner, "trailer", trailer);
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if (!first) {
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jw << "\n },";
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}
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jw << "\n \"trailer\": {\n \"value\": ";
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getTrailer().writeJSON(version, jw, true);
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first = false;
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}
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JSON::writeDictionaryClose(p, first_qpdf_inner, depth_qpdf);
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JSON::writeArrayClose(p, first_qpdf, depth_top);
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if (!first) {
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jw << "\n }";
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}
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/* clang-format off */
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jw << "\n"
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" }\n"
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" ]";
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/* clang-format on */
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if (complete) {
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JSON::writeDictionaryClose(p, first, 0);
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*p << "\n";
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jw << "\n}\n";
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p->finish();
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}
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first_key = false;
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}
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