Listener output

[Bill Baxter]

Barry Denton wrote:
> Bill Baxter Wrote:
> 
>> Barry Denton wrote:
>>> 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}
>>>
>> The problem is in dwt's dwt/widgets/Event.d, toString method:
>>
>> override public char[] toString () {
>>      return Format( "Event {type={} {} time={} data={} x={} y={} 
>> width={} height={} detail={}}",
>>          type, widget, time, data, x, y, width, height, detail ); 
>> //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ 
>> //$NON-NLS-6$ //$NON-NLS-7$
>> }
>>
>> It needs to escape the first and last '{'s.
>> Can you fix it, Frank?
>>
>> --bb
> Will result be rest of  fields then filled in ?

I dunno.  Looks like Frank checked in the fix.  Just update and try it.

--bb