Failed - Re: Urgent Please: Specification of timestamp

[Joseane Farias Fidalgo <jbf@cin.ufpe.br>]

Hi,

	Roger I tried your suggestion and it failed, it has generated the
packages but I continue obtaining the same error during the execution:
"parser.ParserException: [4,41] expecting: timestamp_value".
	It is very strange... Please, if you or someone has some
clarification let me know...

One more time, thanks in advance.
Joseane.




On Sat, 19 Jan 2002, Roger Keays wrote:

> Joseane,
>
> You have forgotten about the space between years and hours! Also, it is
> a good idea to ignore blank tokens and comments (to save specifying
> where they are allowed in your productions). In your case, the space
> should be a part of the token, AND you should ignore blank tokens
> between others.
>
> BTW, are you sure you cannot get by with simple regular expressions
> rather than a full blown parser?
>
> Here is a different version
>
> Helpers
>
>    asp = 39;       // ascii value of  '
>    digit = ['0' .. '9'];
>    days_sequency = '0'['1'..'9'] | ['1'..'2']['0'..'9'] | '3'['0'..'1'] ;
>    months_sequency = '0'['1'..'9'] | '1'['0'..'2'] ;
>    years_sequency = ['2'..'9'] digit digit digit ;
>    hours_sequency = '0'['0'..'9'] | '1'['0'..'9'] | '2'['0'..'3'] ;
>    minutes_sequency = ['0'..'5']['0'..'9'] ;
>    seconds_sequency = ['0'..'5']['0'..'9'] ;
>
>    cr = 13;
>    lf = 10;
>    tab = 9;
>
> Tokens
>
>    operator = ',' ;
>    blank = (cr | lf | tab | ' ')+;
>    timestamp_value =
>      asp days_sequency '.' months_sequency '.' years_sequency
>      (tab | ' ')+
>      hours_sequency':' minutes_sequency ':' seconds_sequency asp;
>
>
> Ignored Tokens
>    blank;
>
> Productions
>    actual_param_ts =
>      [tsf]:timestamp_value operator [tss]: timestamp_value;
>
> Roger
>
> Joseane Farias Fidalgo wrote:
>
> > In the first mail I forget to send you all what the meaning of digit in my
> > specification and other things... Please, look the file again...
> >
> > ----
> > Hi,
> >
> > Please: I have to specify a value of timestamp type in the european
> > format:
> > "'days.months.years hours:minutes:seconds'" like '01.02.2002 10:20:00'
> > with the delimiter caracter " ' " delimiting it.
> > I have tried many things but I only get it without the " ' ".
> > It compilled and have generated all the packages, but when I tried to
> > execute it gave an error of parsing, saying that he was expecting a
> > timestamp value (he doesn't recgnized it). I tried the following:
> >  	Thanks in advance, Joseane.
> > ___
> >  Helpers
> >
> > asp = 39;	// ascii value of  '
> >
> > digit =
> > 	['0' .. '9'];
> >
> > days_sequency =
> >  	'0'['1'..'9'] | ['1'..'2']['0'..'9'] | '3'['0'..'1'] ;
> >
> > months_sequency =
> >  	'0'['1'..'9'] | '1'['0'..'2'] ;
> >
> > years_sequency =
> >  	['2'..'9'] digit digit digit ;
> >
> > hours_sequency =
> >  	'0'['0'..'9'] | '1'['0'..'9'] | '2'['0'..'3'] ;
> >
> > minutes_sequency =
> >  	['0'..'5']['0'..'9'] ;
> >
> >  seconds_sequency =
> >  	['0'..'5']['0'..'9'] ;
> >
> > timestamp_sequency =
> >
> >  	asp days_sequency '.' months_sequency '.' years_sequency
> >  	hours_sequency':' minutes_sequency ':' seconds_sequency asp;
> >
> > Tokens
> >
> > operator = ',' ;
> > timestamp_value =
> > 	timestamp_sequency ;
> >
> > Productions
> >
> > actual_param_ts =
> >  	[tsf]:timestamp_value operator [tss]: timestamp_value;
> >
> >
> >
>
>
>
>