Re: snmptranslate -IR -Tp reserved word problem

Dear Dave, Mike and All:
  
 '--' work in a similar manner to the C-style comments is a perfect explaining.
  
 In my MIb(a very long .mib file) , the long '---------' and the short '----' just want to the mib file easy to read and simple for my boss to understand the mib file structure,so it is not a good idea because some specific reasons. I will use the good style you teaching me in my project now.Thank you.
   
 But I really think the reserved work problem in my mib has a another explain:
  
 Do the 'Space' and the 'Table' key between the myObject and 'OBJECT IDENTIFIER'
 have different effects on the current function? I replaced something between myObject and 'OBJECT IDENTIFIER' use 'Space'  then the command run is OK.
  
 I donot know why the reason is,but it is worked.
  
 In my country,the prommer ususlly use four 'Space' instead 'Table' key,it is so do I.
  
  
 Thank you.
  
 Alex
  ------------------ Original ------------------
  From:  "Dave Shield"<[email protected]>;
 Date:  Mon, Jan 4, 2010 06:55 PM
 To:  "飞飞"<[email protected]>; 
 Cc:  "net-snmp-users"<[email protected]>; 
 Subject:  Re: snmptranslate -IR -Tp reserved word problem

  
2009/12/31 Mike Ayers <[email protected]>:
>        I do not believe you can place comment markers (--) inside a comment.
>        I believe you need to add a space after the comment markers.
>        I do not believe you can put a comment marker within a comment,

That's not strictly true.
The ASN.1 comment marker  '--'   works in a similar manner
to the C-style /*  */  comments (as well as C++-style // comments).
   I.e. double-dash denotes the start of a comment, and a second
double-dash (or the end of the line) denotes the end of the comment.

So
     myObject -- this is a comment --  OBJECT IDENTIFIER
is perfectly valid syntax.


This means that a line of dashes will work correctly,
as long as there are an even number (or 4n-1) of dashes
in the line.   But if you have 4n+1 dashes, then the first 4n
will be interpreted as n (empty) comments, and the final
dash will be parsed as active syntax, and throw an error.

So you *can* use lines of dashes to separate different sections
of the MIB, and you've fot a 75% chance of getting away with it!


But I would agree with Mike's advice:

>      i.e., don't do "----------------------".

If you want to have horizontal rules in your MIB,
try something like

   - - = = = = = = = = = =

(without the spaces!)

Dave

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