feat: Allow specifying custom macros to exclude

Users can now specify a list of macros to exclude from the C++ parser
through the options dialog.
By default the list is pre-filled with:
- AFX_EXT_CLASS
- [A-Z_]*EXPORT[A-Z_]*
- Q_OBJECT

src/core/core/settings.json

@@ -30,6 +30,13 @@
             "LANG_NEUTRAL": "[default]"
         }
     },
+    "cpp": {
+        "excluded_macros": [
+            "AFX_EXT_CLASS",
+            "[A-Z_]*EXPORT[A-Z_]*",
+            "Q_OBJECT"
+        ]
+    },
     "mime_types": {
         "c": "cpp_type",
         "cpp": "cpp_type",

src/core/cppdocument.cpp

@@ -1548,14 +1548,24 @@ QStringList CppDocument::primitiveTypes() const
 
 QList<treesitter::Range> CppDocument::includedRanges() const
 {
-    QList<QString> macros {"AFX_EXT_CLASS"};
+    auto macros = Settings::instance()->value<QStringList>(Settings::CppExcludedMacros);
+    if (macros.isEmpty()) {
+        return {};
+    }
+
+    QRegularExpression regex(macros.join("|"));
+    if (!regex.isValid()) {
+        spdlog::error("CppDocument::includedRanges: Failed to create regex for excluded macros: {}",
+                      regex.errorString());
+        return {};
+    }
+
+    auto document = textEdit()->document();
+
     QList<treesitter::Range> ranges;
     treesitter::Point lastPoint {0, 0};
     uint32_t lastByte = 0;
 
-    auto document = textEdit()->document();
-
-    QRegularExpression regex(macros.join("|"));
     for (auto block = document->firstBlock(); block.isValid(); block = block.next()) {
         QRegularExpressionMatch match;
         auto searchFrom = 0;

src/core/settings.h

@@ -49,6 +49,7 @@ class Settings : public QObject
     static inline constexpr char RcAssetFlags[] = "/rc/asset_flags";
     static inline constexpr char RcAssetColors[] = "/rc/asset_transparent_colors";
     static inline constexpr char RcLanguageMap[] = "/rc/language_map";
+    static inline constexpr char CppExcludedMacros[] = "/cpp/excluded_macros";
     static inline constexpr char SaveLogsToFile[] = "/logs/saveToFile";
     static inline constexpr char ScriptPaths[] = "/script_paths";
     static inline constexpr char Tab[] = "/text_editor/tab";

src/gui/optionsdialog.cpp

@@ -19,7 +19,9 @@
 #include <QApplication>
 #include <QDesktopServices>
 #include <QFileDialog>
+#include <QInputDialog>
 #include <QIntValidator>
+#include <QStringListModel>
 #include <QUrl>
 #include <algorithm>
 
@@ -45,6 +47,7 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     initializeRcSettings();
     initializeSaveToLogFileSetting();
     initializeEnableLSPSetting();
+    initializeCppSettings();
 
     updateScriptPaths();
 }
@@ -217,6 +220,42 @@ void OptionsDialog::initializeRcSettings()
     });
 }
 
+void OptionsDialog::initializeCppSettings()
+{
+    auto *model = new QStringListModel(this);
+    model->setStringList(DEFAULT_VALUE(QStringList, CppExcludedMacros));
+    ui->cppExcludedMacros->setModel(model);
+    ui->cppExcludedMacros->setSelectionMode(QAbstractItemView::SingleSelection);
+
+    connect(ui->cppAddExcludedMacro, &QPushButton::clicked, model, [this, model]() {
+        auto ok = false;
+        auto excludeMacro = QInputDialog::getText(this, tr("Exclude a new macro"), tr("Macro name (supports Regex)"),
+                                                  QLineEdit::Normal, "", &ok);
+        if (ok) {
+            if (model->insertRows(0, 1)) {
+                model->setData(model->index(0), excludeMacro);
+            } else {
+                spdlog::warn("OptionsDialog::excludeMacro: Failed to create new row!");
+            }
+        }
+    });
+
+    connect(ui->cppRemoveExcludedMacro, &QPushButton::clicked, model, [this, model]() {
+        auto selection = ui->cppExcludedMacros->selectionModel()->selectedRows();
+        // single selection mode, so should be at most one.
+        if (!selection.isEmpty()) {
+            model->removeRows(selection.front().row(), 1);
+        }
+    });
+
+    connect(model, &QStringListModel::dataChanged, model, [model]() {
+        SET_DEFAULT_VALUE(CppExcludedMacros, model->stringList());
+    });
+    connect(model, &QStringListModel::rowsRemoved, model, [model]() {
+        SET_DEFAULT_VALUE(CppExcludedMacros, model->stringList());
+    });
+}
+
 void OptionsDialog::openUserSettings()
 {
     QDesktopServices::openUrl(QUrl::fromLocalFile(ui->userPath->text()));

src/gui/optionsdialog.h

@@ -35,6 +35,7 @@ class OptionsDialog : public QDialog
     void initializeScriptPathSettings();
     void initializeScriptBehaviorSettings();
     void initializeRcSettings();
+    void initializeCppSettings();
 
     void openUserSettings();
     void openProjectSettings();

src/gui/optionsdialog.ui

@@ -626,6 +626,49 @@
        </item>
       </layout>
      </widget>
+     <widget class="QWidget" name="stackedWidgetPage5">
+      <layout class="QVBoxLayout" name="verticalLayout_4">
+       <item>
+        <widget class="QGroupBox" name="groupBox_7">
+         <property name="title">
+          <string>C++ Files</string>
+         </property>
+         <layout class="QGridLayout" name="gridLayout_11">
+          <item row="0" column="0">
+           <widget class="QLabel" name="cppLabelExcludedMacros">
+            <property name="toolTip">
+             <string>The Macros listed here will be excluded from parsing (supports Regex).</string>
+            </property>
+            <property name="text">
+             <string>Excluded Macros</string>
+            </property>
+            <property name="alignment">
+             <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="2">
+           <widget class="QPushButton" name="cppAddExcludedMacro">
+            <property name="text">
+             <string>Add</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="2">
+           <widget class="QPushButton" name="cppRemoveExcludedMacro">
+            <property name="text">
+             <string>Remove</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1" rowspan="3">
+           <widget class="QListView" name="cppExcludedMacros"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
+      </layout>
+     </widget>
     </widget>
    </item>
    <item row="0" column="1">
@@ -684,6 +727,11 @@
        <string>Rc Files</string>
       </property>
      </item>
+     <item>
+      <property name="text">
+       <string>C++ Files</string>
+      </property>
+     </item>
     </widget>
    </item>
   </layout>