Add support for age rating metadata

src/backend/model/gaming/Game.h

@@ -47,6 +47,7 @@ struct GameData {
     QStringList genres;
     QStringList tags;
 
+    QString age_rating;
     short player_count = 1;
     float rating = 0.0;
     QDate release_date;
@@ -78,6 +79,7 @@ class Game : public QObject {
     GETTER(const QString&, sortBy, sort_by)
     GETTER(const QString&, summary, summary)
     GETTER(const QString&, description, description)
+    GETTER(const QString&, ageRating, age_rating)
     GETTER(const QDate&, releaseDate, release_date)
     GETTER(int, playerCount, player_count)
     GETTER(float, rating, rating)
@@ -109,6 +111,7 @@ class Game : public QObject {
     SETTER(QString, SortBy, sort_by)
     SETTER(QString, Summary, summary)
     SETTER(QString, Description, description)
+    SETTER(QString, AgeRating, age_rating)
     SETTER(QDate, ReleaseDate, release_date)
 
     SETTER(QString, LaunchCmd, launch_params.launch_cmd)
@@ -139,6 +142,7 @@ class Game : public QObject {
     Q_PROPERTY(QString sortBy READ sortBy CONSTANT)
     Q_PROPERTY(QString summary READ summary CONSTANT)
     Q_PROPERTY(QString description READ description CONSTANT)
+    Q_PROPERTY(QString age READ ageRating CONSTANT)
     Q_PROPERTY(QDate release READ releaseDate CONSTANT)
     Q_PROPERTY(int players READ playerCount CONSTANT)
     Q_PROPERTY(float rating READ rating CONSTANT)

src/backend/providers/pegasus_metadata/PegasusMetadata.cpp

@@ -75,6 +75,7 @@ enum class GameAttrib : unsigned char {
     PLAYER_COUNT,
     SHORT_DESC,
     LONG_DESC,
+    AGE,
     RELEASE,
     RATING,
     LAUNCH_CMD,
@@ -131,6 +132,7 @@ Metadata::Metadata(QString log_tag)
         { QStringLiteral("summary"), GameAttrib::SHORT_DESC },
         { QStringLiteral("description"), GameAttrib::LONG_DESC },
         { QStringLiteral("release"), GameAttrib::RELEASE },
+        { QStringLiteral("age"), GameAttrib::AGE },
         { QStringLiteral("rating"), GameAttrib::RATING },
         // sort title variations
         { QStringLiteral("sorttitle"), GameAttrib::SORT_BY },
@@ -369,6 +371,13 @@ void Metadata::apply_game_entry(ParserState& ps, const metafile::Entry& entry, S
                 ps.cur_game->setDescription(std::move(text));
             }
             break;
+        case GameAttrib::AGE:
+            {
+                QString text = metafile::merge_lines(entry.values);
+                replace_newlines(text);
+                ps.cur_game->setAgeRating(std::move(text));
+            }
+            break;
         case GameAttrib::RELEASE:
             {
                 const auto rx_match = rx_date.match(first_line_of(ps, entry));

tests/backend/providers/pegasus/data/with_meta/metadata.pegasus.txt

@@ -26,6 +26,7 @@ genres:
   genre with spaces
 sortby: Game IX
 players: 2-4
+age: 13+
 rating: 80%
 # repeating single keys will overwrite
 release: 1998

tests/backend/providers/pegasus/data/with_meta/metadata.txt

@@ -20,6 +20,7 @@ genres: genre1, genre2,
 players: 2-4
 
 file: subdir/game_in_subdir.ext
+age: 13+
 rating: 80%
 # repeating keys will overwrite previous values
 release: 1998

tests/backend/providers/pegasus/test_PegasusProvider.cpp

@@ -255,6 +255,7 @@ void test_PegasusProvider::with_meta()
         QCOMPARE(game.genreListConst(), QStringList({"genre1", "genre2", "genre with spaces"}));
         QCOMPARE(game.playerCount(), 4);
         QCOMPARE(game.releaseDate(), QDate(1998, 5, 1));
+        QCOMPARE(game.ageRating(), QStringLiteral("13+"));
         QCOMPARE(game.summary(), QStringLiteral("something short here"));
         QCOMPARE(game.description(), QStringLiteral("a very long\n\ndescription"));
         QCOMPARE(game.rating(), 0.8f);