Hello Anil,
As I remember there is a mistake :-)
Just about 2 months ago I generated CR to correct it but I have no knowledge about the results.
Full production is:
AllRef ::= ( GroupKeyword AllKeyword [ExceptKeyword BeginChar GroupRefList EndChar]) |
( TypeDefKeyword AllKeyword [ExceptKeyword BeginChar TypeRefList] EndChar) |
( TemplateKeyword AllKeyword [ExceptKeyword BeginChar TemplateRefList] EndChar) |
( ConstKeyword AllKeyword [ExceptKeyword BeginChar ConstRefList] EndChar) |
( AltstepKeyword AllKeyword [ExceptKeyword BeginChar AltstepRefList] EndChar) |
( TestcaseKeyword AllKeyword [ExceptKeyword BeginChar TestcaseRefList] EndChar) |
( FunctionKeyword AllKeyword [ExceptKeyword BeginChar FunctionRefList] EndChar) |
( SignatureKeyword AllKeyword [ExceptKeyword BeginChar SignatureRefList] EndChar) |
( ModuleParKeyword AllKeyword [ExceptKeyword BeginChar ModuleParRefList] EndChar)
and I think the only first line is ok and the rest should be corrected.
Please correct me in case I am wrong.
TIP:
Since BeginChar and EndChar are used for expressions grouping at the language level and square brackets group the whole language parts at the BNF notation level then production of type:
([... BeginChar ...] EndChar)
should violate in every case the language description.
In case of '[...]' omission we have mandatory EndChar without starting BeginChar.
Regards,
Mariusz Kupiec
Original Message
From: AnilKrishna
To:
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Sent: Friday, November 01, 2002 8:27 AM
Subject: Which is correct production?
Hello,
In TTCN-3 Grammar there is a production as following:
AllRef
:( GroupKeyword AllKeyword [ExceptKeyword BeginChar GroupRefList EndChar])
|( TypeDefKeyword AllKeyword [ExceptKeyword BeginChar TypeRefList] EndChar)
|................
|................
|..............
;
My doubt is ending square bractet is after 'EndChar' and before the 'EndChar' in remaining productions.
Is it printing mistake or grammar it self is like that.
regards,
Anil Krishna
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