Re: [Pyparsing] C++ Comments and a Backslash at the End of the Line.

[Paul M. <pa...@al...>]

Does this look better?

    cppStyleComment =
Regex(r"(\/\*[\s\S]*?\*\/)|(\/\/(\\\n|.)*)").setName("C++ style comment")

It seems to test out okay.

I'll put it in the next update.

-- Paul
 

> -----Original Message-----
> From: pyp...@li... 
> [mailto:pyp...@li...] On 
> Behalf Of Ralph Corderoy
> Sent: Tuesday, October 03, 2006 2:14 PM
> To: pyp...@li...
> Subject: [Pyparsing] C++ Comments and a Backslash at the End 
> of the Line.
> 
> 
> Hi,
> 
> Just looking at pyparsing-1.4.3's source and 
> 
>     cppStyleComment = 
> Regex(r"(\/\*[\s\S]*?\*\/)|(\/\/.*)").setName("C++ style comment")
> 
> seems wrong.  AIUI the // style of comment is terminated by 
> the end of a line that is not preceeded with a backslash:
> 
>     $ cat x.c++
>     int a; \\ abc\
>     int b; \\ ghi
>     $ g++ -E x.c++
>     # 1 "x.c++"
>     # 1 "<built-in>"
>     # 1 "<command line>"
>     # 1 "x.c++"
>     int a; \\ abcint b; \\ ghi
>     $
> 
> I don't know about Java:
> 
>     javaStyleComment = cppStyleComment
> 
> Cheers,
> 
> 
> Ralph.
> 
> 
> 
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