Add command line test tool for dumping the extractor document tree

src/tools/CMakeLists.txt

@@ -4,3 +4,7 @@
 add_executable(ticket-barcode-dump ticket-barcode-dump.cpp)
 target_include_directories(ticket-barcode-dump PRIVATE ${CMAKE_BINARY_DIR})
 target_link_libraries(ticket-barcode-dump KPimItinerary)
+
+add_executable(extractor-document-dump extractor-document-dump.cpp)
+target_include_directories(extractor-document-dump PRIVATE ${CMAKE_BINARY_DIR})
+target_link_libraries(extractor-document-dump KPimItinerary)

src/tools/extractor-document-dump.cpp

+/*
+    SPDX-FileCopyrightText: 2021 Volker Krause <vkrause@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include <kitinerary_version.h>
+
+#include <KItinerary/ExtractorDocumentNode>
+#include <KItinerary/ExtractorEngine>
+#include <KItinerary/ExtractorResult>
+
+#include <QCommandLineParser>
+#include <QCoreApplication>
+#include <QDebug>
+#include <QFile>
+
+#include <iostream>
+
+using namespace KItinerary;
+
+static void printNode(const ExtractorDocumentNode &node, int indent = 0)
+{
+    if (node.isNull()) {
+        return;
+    }
+    for (int j = 0; j < indent; ++j) { std::cout.write(" ", 1); }
+    std::cout << "MIME type: " << qPrintable(node.mimeType()) << std::endl;
+    for (int j = 0; j < indent; ++j) { std::cout.write(" ", 1); }
+    std::cout << "context time : " << qPrintable(node.contextDateTime().toString(Qt::ISODate)) << std::endl;
+    if (!node.location().isNull()) {
+        for (int j = 0; j < indent; ++j) { std::cout.write(" ", 1); }
+        std::cout << "location: " << qPrintable(node.location().toString()) << std::endl;
+    }
+    for (int j = 0; j < indent; ++j) { std::cout.write(" ", 1); }
+    std::cout << "content: " << node.content().typeName() << std::endl;
+    for (int j = 0; j < indent; ++j) { std::cout.write(" ", 1); }
+    std::cout << "results: " << node.result().size() << std::endl;
+
+    for (const auto &child : node.childNodes()) {
+        printNode(child, indent + 2);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication::setApplicationName(QStringLiteral("extractor-document-dump"));
+    QCoreApplication::setApplicationVersion(QStringLiteral(KITINERARY_VERSION_STRING));
+    QCoreApplication::setOrganizationDomain(QStringLiteral("kde.org"));
+    QCoreApplication::setOrganizationName(QStringLiteral("KDE"));
+    QCoreApplication app(argc, argv);
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription(QStringLiteral("Dump extractor document node tree."));
+    parser.addHelpOption();
+    parser.addVersionOption();
+    parser.addPositionalArgument(QStringLiteral("input"), QStringLiteral("File to read data from, omit for using stdin."));
+    parser.process(app);
+
+    if (parser.positionalArguments().isEmpty()) {
+        parser.showHelp(1);
+    }
+
+    QFile file(parser.positionalArguments().at(0));
+    if (!file.open(QFile::ReadOnly)) {
+        std::cerr << qPrintable(file.errorString()) << std::endl;
+        return 1;
+    }
+
+    const auto data = file.readAll();
+
+    ExtractorEngine engine;
+    engine.setData(data, file.fileName());
+    engine.extract();
+    printNode(engine.rootDocumentNode());
+
+    return 0;
+}