Hi Mariusz,
your mail somehow repeats some discussions among Anthony, Colin and
myself in the beginning of the (short) TTCN-3 history. We started with
'anytimer', 'alltimer', 'anyport', 'allport', etc. and the table with
reserved words grows and grows and grows until we came to the conclusion
that this couldn't be the right way. We also experimented with
double (and triple and ...) dot notations (e.g., all.timer.stop) and
didn't like it (in fact we tried to avoid double, triple, etc. dot
notations whereever possible). At the end we agreed in a few cases on
double keywords.
That's all.
Regards
Jens
Mariusz Kupiec schrieb:
>
> Hi,
>
> There is no problem with parsing two words and 'runs on' is ok according
> this criteria.
> You have mentioned 'anytimer', 'alltimer', 'anyport', 'allport'.
> These words would be good because expressions like:
>
> 'all timer.stop'
>
> look really awfully.
> It looks like calling procedure or method for only 'timer', not 'all timer'.
> I was thinking about it without introduction of new keywords because timers,
> ports and components share 'all' and 'any' concept.
> Just something like:
>
> '(all timer).stop'
> 'all(timer).stop'
>
> or better:
>
> 'timer.all.stop
>
> but the solutions does not seem object oriented.
> The last one may be eventually discussed as it is quite clear and consistent
> without new keywords and with consistent three-leveled hierarchy:
>
> a) port/component/timer - identifies set of objects
> b) all/any - identifies selection criteria for the set of objects
> c) action - identifies kind of action to be performed on a selected set of
> objects
>
> BR,
> Mariusz Kupiec
>
>
Original Message
> From: "Jens Grabowski" <
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> To: <
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> Sent: Monday, January 20, 2003 5:40 PM
> Subject: Re: Reserved words in TTCN-3
>
> > Just a short explanatory word on reserved words:
> > It was a problem to 'invent' new words, which do not have other or
> > similar, but not identical, meanings
> > in other areas. And in some case it was a matter of taste to use two
> > words instead of one word.
> >
> > At least I can easily read 'runs on' but would have to think some time
> > when reading 'runson'. On the
> > other hand I have no problems to read (and understand intuitively)
> > 'getverdict', 'setverdict', 'getcall',
> > etc. but may have problems with 'anytimer', 'alltimer', 'anyport',
> > 'allport' etc.
> >
> > I don't believe that it would be any step forward to introduce 'runson'
> > and save one reserved word.
> > It would be more confusing if someone says 'runs on' and the other
> > 'runson' (spoken in one word
> > without break between 'runs' and 'on').
> >
> > However, some keywords are a matter of taste, but if there are parsing
> > problems with the 'two word'
> > keywords, something has to be changed immediately.
> >
> > Regards
> > Jens
> >
> >
> >
> >
> >
Original Message
> > Betreff: Re: Reserved words in TTCN-3
> > Datum: Mon, 20 Jan 2003 17:17:49 +0100
> > Von: Stefan Olofsson <
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> > Rückantwort: "active_ttcn3 : mts stf133 ttcn version 3 - active members
> > only" <
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> > An:
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> >
> > Thanks Mariusz!
> >
> > I guess you helped me find the one I missed/was longing for...;-)
> >
> > BR
> >
> > /Stefan
> >
> >
Original Message
> > From: Mariusz Kupiec [
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> > Sent: Monday, January 20, 2003 5:07 PM
> > To:
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> > Subject: Re: Reserved words in TTCN-3
> >
> > Hi,
> >
> > > before). What is the reason for having all other keywords as
> > > one word but keeping runs on in two? Why not
> > > use runson which would comply to how the other keywords are
> > > outlined?
> > >
> > > good point. There is ifpresent, verdicttype, getverdict, getreply,
> > > getcall,...
> > >
> > > I guess runs on reads better than runson. From a consistency point
> > > of view, this might
> > > make sense, furthermore it would reduce the number of
> > > keywords/reserved words/terminals by 1!
> >
> > I also prefer simplicity where it is possible and readable. Sometimes
> > not only number of words may be reduced in the standard but also in the
> > construct itself.
> > Example1:
> > select (...)
> > case (... , ...)
> >
> > {
> > ...
> >
> > }
> > case (..., ...)
> > {
> > ...
> > }
> > case else
> >
> > {
> > ...
> > }
> > Example2:
> > case (...) {
> > ... , ... : {
> > ...
> >
> > }
> > ... , ... : {
> > ...
> >
> > }
> > else: {
> > ...
> >
> > }
> > }
> > Last changes to keywords in v. 2.2.1 in 2.2.0 tracked by me:
> > - nonrecursive
> >
> > - sut
> > - get
> > - verdict
> > - (get verdict) -> + getverdict
> > - (set verdict) -> + setverdict // 'set' keyword was not removed as
> > 'get'
> > + except
> > + variant
> >
> > + recursive
> > + subset
> > + superset
> >
> > - teststep -> + altstep
> > - parameters -> + modulepar
> > I hope it is complete list.
> > BR,
> > Mariusz Kupiec
> >
> >
> >
> > Poczta nowych mozliwosci >>>
link.interia.pl/f16bc
> >
> >
> > Portal INTERIA.PL zaprasza... >>>
link.interia.pl/f16ab
> >
> >
> >
>
>
> Poczta nowych mozliwosci >>>
link.interia.pl/f16bc
--
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Dr. Jens Grabowski
Institute for Telematics phone: +49 451 500 3723
University of Luebeck fax: +49 451 500 3722
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