Partially done.

dw/layout.cc

@@ -248,13 +248,6 @@ bool Layout::LinkEmitter::emitClick (Widget *widget, int link, int img,
 
 // ---------------------------------------------------------------------
 
-Layout::Anchor::~Anchor ()
-{
-   free(name);
-}
-
-// ---------------------------------------------------------------------
-
 Layout::Layout (std::unique_ptr< Platform > platform, bool limit)
 {
    this->platform = std::move( platform );
@@ -731,18 +724,20 @@ void Layout::setAnchor (const std::optional< std::string_view > anchor)
 /**
  * Used, when the widget is not allocated yet.
  */
-char *Layout::addAnchor (Widget *widget, const char* name)
+std::optional< std::string >
+Layout::addAnchor (Widget *widget, const std::string &name)
 {
    return addAnchor (widget, name, -1);
 }
 
-char *Layout::addAnchor (Widget *widget, const char* name, int y)
+std::optional< std::string >
+Layout::addAnchor (Widget *widget, const std::string &name, int y)
 {
    if (anchorsTable.contains (name))
-      return NULL;
+      return std::nullopt;
    else {
       auto anchor = std::make_unique< Anchor >();
-      char *const rv= anchor->name = dStrdup (name);
+      std::string rv= anchor->name= name;
       anchor->widget = widget;
       anchor->y = y;
 
@@ -753,7 +748,7 @@ char *Layout::addAnchor (Widget *widget, const char* name, int y)
    }
 }
 
-void Layout::changeAnchor (Widget *widget, char* name, int y)
+void Layout::changeAnchor (Widget *widget, const std::string &name, int y)
 {
    Anchor *const anchor = anchorsTable.at( name ).get();
    assert (anchor);
@@ -762,7 +757,7 @@ void Layout::changeAnchor (Widget *widget, char* name, int y)
    updateAnchor ();
 }
 
-void Layout::removeAnchor (Widget *widget, char* name)
+void Layout::removeAnchor (Widget *widget, const std::string &name)
 {
    anchorsTable.erase( name );
 }

dw/layout.hh

@@ -150,11 +150,9 @@ private:
    class Anchor: public lout::object::Object
    {
    public:
-      char *name;
+      std::string name;
       Widget *widget;
       int y;
-
-      ~Anchor ();
    };
 
    std::unique_ptr< Platform > platform;
@@ -236,10 +234,10 @@ private:
 
    /* Widget */
 
-   char *addAnchor (Widget *widget, const char* name);
+   std::optional< std::string > addAnchor (Widget *widget, const std::string &name);
-   char *addAnchor (Widget *widget, const char* name, int y);
+   std::optional< std::string > addAnchor (Widget *widget, const std::string &name, int y);
-   void changeAnchor (Widget *widget, char* name, int y);
+   void changeAnchor (Widget *widget, const std::string &name, int y);
-   void removeAnchor (Widget *widget, char* name);
+   void removeAnchor (Widget *widget, const std::string &name);
    void setCursor (style::Cursor cursor);
    void updateCursor ();
    void queueDraw (int x, int y, int width, int height);

dw/textblock.cc

@@ -2555,11 +2555,11 @@ void Textblock::addWidget (core::Widget *widget, core::style::Style *style)
  * Return true on success, and false, when this anchor had already been
  * added to the widget tree.
  */
-bool Textblock::addAnchor (const char *name, core::style::Style *style)
+bool Textblock::addAnchor (const std::string &name, core::style::Style *style)
 {
-   DBG_OBJ_ENTER ("construct.word", 0, "addAnchor", "\"%s\", %p", name, style);
+   DBG_OBJ_ENTER ("construct.word", 0, "addAnchor", "\"%s\", %p", name.c_str(), style);
 
-   char *copy;
+   std::optional< std::string > copy;
    int y;
    bool result;
 
@@ -2574,7 +2574,7 @@ bool Textblock::addAnchor (const char *name, core::style::Style *style)
    } else
       copy = Widget::addAnchor (name);
 
-   if (copy == NULL)
+   if (not copy.has_value())
       /**
        * \todo It may be necessary for future uses to save the anchor in
        *    some way, e.g. when parts of the widget tree change.

dw/textblock.hh

@@ -505,7 +505,7 @@ protected:
 
    struct Anchor
    {
-      char *name;
+      std::string_view name;
       int wordIndex;
    };
 
@@ -890,7 +890,7 @@ public:
    inline void addText (const char *text, core::style::Style *style)
    { addText (text, strlen(text), style); }
    void addWidget (core::Widget *widget, core::style::Style *style);
-   bool addAnchor (const char *name, core::style::Style *style);
+   bool addAnchor (const std::string &name, core::style::Style *style);
    void addSpace (core::style::Style *style);
    void addBreakOption (core::style::Style *style, bool forceBreak);
    void addParbreak (int space, core::style::Style *style);

dw/widget.hh

@@ -394,16 +394,16 @@ protected:
    virtual void enterNotifyImpl (EventCrossing *event);
    virtual void leaveNotifyImpl (EventCrossing *event);
 
-   inline char *addAnchor (const char* name)
+   inline std::optional< std::string > addAnchor (const std::string &name)
    { return layout->addAnchor (this, name); }
 
-   inline char *addAnchor (const char* name, int y)
+   inline std::optional< std::string > addAnchor (const std::string &name, int y)
    { return layout->addAnchor (this, name, y); }
 
-   inline void changeAnchor (char* name, int y)
+   inline void changeAnchor (const std::string &name, int y)
    { layout->changeAnchor (this, name, y); }
 
-   inline void removeAnchor (char* name)
+   inline void removeAnchor (const std::string &name)
    { if (layout) layout->removeAnchor (this, name); }
 
    //inline void updateBgColor () { layout->updateBgColor (); }