Listener output

[Barry Denton]

Barry Denton Wrote:

> Jarrett Billingsley Wrote:
> 
> > "Barry Denton" <basse42 at yahoo.com> wrote in message 
> > news:fubgb0$22go$1 at digitalmars.com...
> > >I have a Listener added to a button as so :-
> > >
> > > button.addListener(DWT.Selection, new class Listener {
> > >        void handleEvent(Event event) {
> > >            itemWords [5] = "item has changed " ;//~ 
> > > System.currentTimeMillis();
> > >            minitable.clear(5);  }  });
> > >
> > > When pressed the button outputs this:-
> > >
> > > Event {missing or misplaced '}'}Event {type=13 Button {Change item} 
> > > time=1679601378 data={null} x=0 y=0 width=0 height=0 detail=0}
> > > .
> > > Now all is as it should be except for the  {missing or misplaced '}'}
> > 
> > Tango's formatting uses a pair of curly braces like "{}".  Your output is 
> > supposed to go "{Event {type=13....", but Tango sees the opening '{', tries 
> > to parse it as a format specifier, and fails, leaving you with an error 
> > message embedded in the output.
> > 
> > The question I have is: where is this output being generated?  This code 
> > doesn't seem to generate it.
> > 
> > I ask because it's a simple fix: instead of doing something like 
> > "Stdout.formatln(x.toString())", just use "Stdout.formatln("{}", x)", that 
> > is, escape the string by making it a parameter to be formatted. 
> > 
> > 
> Thanks but this did not work .Did I mess it up?
>  button.addListener(DWT.Selection, new class Listener {
>         void handleEvent(Event event) {
>             itemWords [5] = ("item has changed " ~ clock.stringof~"  "~ cast(char)clock);
>             Stdout.formatln("{}""{}" ,event.mangleof, event.stringof).newline;
>             Stdout.formatln("{}""{}" ,clock.mangleof, clock.stringof).newline;
>             Stdout.print(itemWords).newline;
>             minitable.clear(5); 
> 
Tried this but still there

button.addListener(DWT.Selection, new class Listener {
        void handleEvent(Event event) {
            itemWords [5] = ("item has changed " ~ clock.stringof~"  "~ cast(char)clock);
            Stdout.formatln("{}""{}" ,event.mangleof, event.stringof).newline;
            Stdout.formatln("{}""{}" ,clock.mangleof, clock.stringof).newline;
            Stdout.formatln("{}",event);
            Stdout.print(itemWords).newline;
            minitable.clear(5); 
Output
C3dwt7widgets5Event5Eventevent

PS5tango4time9WallClock9WallClockclock

Event {missing or misplaced '}'}Event {type=13 Button {Change item at index 5} time=1753196186 data={null} x=0 y=0 width=0 height=0 detail=0}
[ item 0  , item 1  , item 2  , item 3  , item 4  , item has changed clock  , item 6  , item 7  , item 8  , item 9   ]
Event {missing or misplaced '}'}Event {type=36 Table {} time=1753196186 data={null} x=0 y=0 width=0 height=0 detail=0}