[rules-users] Error is Java.lang.RuntimeException

[Wolfgang Laun]

2011/8/26 Michael Anstis <michael.anstis at gmail.com>

> hehe.
>
> I don't think we should burden ourselves with handling of every UNICODE
> nuance after all :)
>
> Perhaps a clear warning in the documentation for spreadsheet based decision
> tables alerting the user to the problem of "smart" quotes" would be enough?
>

There are cells where most variants of double quote (especiall double high-9
or 6) could be silently transformed (especially if there is no U+0022 in
that cell) or cause a warning.

As for data cells, anything is possible. An alternative form for parameter
insertion might solve this problem, and also an option could be considered.

I suspect we have certain assumptions about the code-points of all the
> punctuation in our DRL grammer.
>

Special characters and digits: yes. Letters for identifiers according to
Java. Not sure whether all variants of "space" are permitted.

It would help a lot if the lexer/parser would add the code point where it
hiccups on a single character. Consider:
   [ERR 101] Line 12:19 no viable alternative at input '' (U+201E)

-W


> What do you think?
>
> 2011/8/26 Wolfgang Laun <wolfgang.laun at gmail.com>
>
>> Michael,
>>
>> may I point you to http://unicode.org/uni2book/ch06.pdf and don't shy
>> away from the intricacies of double quotes in all the world's languages ;-)
>>
>> Quotes, in a spreadsheet's text fields, are punctuations in the author's
>> language and usually not delimiters of some programming language. Using a
>> spreadsheet for collecting code snippets is not the everyday use case.
>>
>> -W
>>
>>
>>
>> 2011/8/26 Michael Anstis <michael.anstis at gmail.com>
>>
>>> Can you be certain the author of the spreadsheet has not entered the
>>> erroneous, although cosmetically similar, quotation marks?
>>>
>>> I find it unlikely Open Office Spreadsheet chooses to use ASCII quotation
>>> marks in some places but UNICODE, visually similar but otherwise completely
>>> different, in others.
>>>
>>>
>>> 2011/8/26 Manohar Kokkula <manohar.kokkula at tcs.com>
>>>
>>>> I am using Open Office Spreadsheet to create decision table. So what
>>>> should i do to resolve this..
>>>> Please help me on this.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Regards,
>>>> Manohar Kokkula
>>>> Mailto: manohar.kokkula at tcs.com
>>>>
>>>> -----rules-users-bounces at lists.jboss.org wrote: -----
>>>>
>>>> To: Rules Users List <rules-users at lists.jboss.org>
>>>> From: Wolfgang Laun **
>>>> Sent by: rules-users-bounces at lists.jboss.org
>>>> Date: 08/26/2011 12:26AM
>>>>
>>>> Subject: Re: [rules-users] Error is Java.lang.RuntimeException
>>>>
>>>> Heh :) Looking at the DRL, I spotted it:
>>>>
>>>> > rule *"*Allocation Rules_10*"*
>>>> >       when
>>>> >                $s:Student(marks == *"*60", age == "20")
>>>> >                $c:College(ranking == "A", location == "Mumbai")
>>>> >        then
>>>>
>>>> Up there, all quotes are ASCII quotes, code point U+0022.
>>>>
>>>> >                $s.setDepartment(“Maths”);
>>>> >                $c.setStatus(“NA”);
>>>>
>>>> But in your spreadsheet you have one of the several other quotation
>>>> marks as defined by the unicode standard, the one the authors of your
>>>> spreadsheet program deemed fit to be sneaked in when you hit shift-2 (or
>>>> whatever, depending on your keyboard).
>>>>
>>>> On 25 August 2011 16:21, FrankVhh <frank.vanhoenshoven at agserv.eu>wrote:
>>>>
>>>>> Shouldn't marks and age be integer values and not Strings?
>>>>>
>>>> No, these are converted automatically.
>>>>
>>>> -W
>>>>
>>>>
>>>>
>>>>
>>>>>
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>>>>> View this message in context:
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