Method Clear

scintilla/src/Editor.cxx:4358–4390

}

void Editor::Clear()
{
    // If multiple selections, don't delete EOLS
    if ( sel.Empty() ) {
        bool singleVirtual = false;
        if ( ( sel.Count() == 1 ) &&
                !RangeContainsProtected ( sel.MainCaret(), sel.MainCaret() + 1 ) &&
                sel.RangeMain().Start().VirtualSpace() ) {
            singleVirtual = true;
        }
        UndoGroup ug ( pdoc, ( sel.Count() > 1 ) || singleVirtual );
        for ( size_t r = 0; r < sel.Count(); r++ ) {
            if ( !RangeContainsProtected ( sel.Range ( r ).caret.Position(), sel.Range ( r ).caret.Position() + 1 ) ) {
                if ( sel.Range ( r ).Start().VirtualSpace() ) {
                    if ( sel.Range ( r ).anchor < sel.Range ( r ).caret ) {
                        sel.Range ( r ) = SelectionPosition ( InsertSpace ( sel.Range ( r ).anchor.Position(), sel.Range ( r ).anchor.VirtualSpace() ) );
                    } else {
                        sel.Range ( r ) = SelectionPosition ( InsertSpace ( sel.Range ( r ).caret.Position(), sel.Range ( r ).caret.VirtualSpace() ) );
                    }
                }
                if ( ( sel.Count() == 1 ) || !pdoc->IsPositionInLineEnd ( sel.Range ( r ).caret.Position() ) ) {
                    pdoc->DelChar ( sel.Range ( r ).caret.Position() );
                    sel.Range ( r ).ClearVirtualSpace();
                }  // else multiple selection so don't eat line ends
            } else {
                sel.Range ( r ).ClearVirtualSpace();
            }
        }
    } else {
        ClearSelection();
    }
    sel.RemoveDuplicates();
}

void Editor::SelectAll()
{