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AST - How to Parse Comments ? [message #171811]

Wed, 28 June 2006 14:37

Eclipse User

Is there a method to access comments in the code?

The only thing I see in org.eclipse.cdt.core.dom.ast.IASTTranslationUnit
is getUnpreprocessedSignature() ..

in JDT there's a getCommentList() method, is there anything like that in
cdt?

Re: AST - How to Parse Comments ? [message #171868 is a reply to message #171811]

Fri, 30 June 2006 10:29

Eclipse User

Unfortunately the scanner currently ignores comments as whitespace and
does nothing with them. See BaseScanner.skipWhiteSpace().

-Andrew

Sebastian Jagodzinski wrote:
> Is there a method to access comments in the code?
>
> The only thing I see in org.eclipse.cdt.core.dom.ast.IASTTranslationUnit
> is getUnpreprocessedSignature() ..
>
> in JDT there's a getCommentList() method, is there anything like that in
> cdt?
>
>
>
>
>

Re: AST - How to Parse Comments ? [message #211139 is a reply to message #171868]

Wed, 05 March 2008 08:30

Eclipse User

Originally posted by: anand.hatwalne.gmail.com

Is/Are there any crude way(s)/workarounds of achieving this? It appears
the comments are indeed skipped while building AST.. Appreciate any input.

Anand

Andrew Niefer wrote:
> Unfortunately the scanner currently ignores comments as whitespace and
> does nothing with them. See BaseScanner.skipWhiteSpace().
>
> -Andrew
>
> Sebastian Jagodzinski wrote:
>> Is there a method to access comments in the code?
>>
>> The only thing I see in org.eclipse.cdt.core.dom.ast.IASTTranslationUnit
>> is getUnpreprocessedSignature() ..
>>
>> in JDT there's a getCommentList() method, is there anything like that in
>> cdt?
>>
>>
>>
>>
>>

Re: AST - How to Parse Comments ? [message #211172 is a reply to message #171868]

Wed, 05 March 2008 23:37

Eclipse User

Originally posted by: dschaefer.rogers.com

Andrew Niefer wrote:
> Unfortunately the scanner currently ignores comments as whitespace and
> does nothing with them. See BaseScanner.skipWhiteSpace().
>
> -Andrew
>
> Sebastian Jagodzinski wrote:
>> Is there a method to access comments in the code?
>>
>> The only thing I see in org.eclipse.cdt.core.dom.ast.IASTTranslationUnit
>> is getUnpreprocessedSignature() ..
>>
>> in JDT there's a getCommentList() method, is there anything like that in
>> cdt?

That is changing with CDT 5.0's refactoring work. I'm not sure of the
details but Markus did some work on this recently.

Doug.

Re: AST - How to Parse Comments ? [message #211195 is a reply to message #211172]

Thu, 06 March 2008 04:13

Eclipse User

Doug Schaefer wrote:
>
> That is changing with CDT 5.0's refactoring work. I'm not sure of the
> details but Markus did some work on this recently.
>
> Doug.

Since CDT 4.0 the IASTTranslationUnit has a getComments() method. But you
need to configure the parser/scanner to provied comments otherwise the
scanner skips the comments.

Emanuel

Re: AST - How to Parse Comments ? [message #211398 is a reply to message #211195]

Sun, 09 March 2008 09:07

Eclipse User

Emanuel Graf wrote:
> Doug Schaefer wrote:
>> That is changing with CDT 5.0's refactoring work. I'm not sure of the
>> details but Markus did some work on this recently.
>>
>> Doug.
>
> Since CDT 4.0 the IASTTranslationUnit has a getComments() method. But you
> need to configure the parser/scanner to provied comments otherwise the
> scanner skips the comments.
>
> Emanuel
Yes, remind us how to turn that on, so we can get comments in the AST

Re: AST - How to Parse Comments ? [message #211508 is a reply to message #211398]

Mon, 10 March 2008 05:29

Eclipse User

Beth Tibbitts wrote:

> Emanuel Graf wrote:
>> Doug Schaefer wrote:
>>> That is changing with CDT 5.0's refactoring work. I'm not sure of the
>>> details but Markus did some work on this recently.
>>>
>>> Doug.
>>
>> Since CDT 4.0 the IASTTranslationUnit has a getComments() method. But you
>> need to configure the parser/scanner to provied comments otherwise the
>> scanner skips the comments.
>>
>> Emanuel
> Yes, remind us how to turn that on, so we can get comments in the AST

You can use the ITranslationUnit.AST_CREATE_COMMENT_NODES flag:

ITranslationUnit tu= ...
tu.getAST(index, ITranslationUnit.AST_CREATE_COMMENT_NODES);

or use one of the CDOM.getTranslationUnit() method with a boolean
parseComments parameter set to true.

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