Stephen Lau wrote:
> Nathan Bush wrote:
>> Stephen Lau wrote:
>>> Nathan Bush wrote:
>>>> Stephen Lau wrote:
>>>>> Nathan Bush wrote:
>>>>>> Stephen Lau wrote:
>>>>>>> 2) We throw a "Header guard does not match filename" on a header 
>>>>>>> guard that looks like: __FOO_H__ (for foo.h) or other things that 
>>>>>>> don't strictly match _FOO_H_
>>>>>>> Is this the best error message?  Intuitively, I would think it 
>>>>>>> should be "Invalid or missing header guard" myself - but this is 
>>>>>>> the same behaviour as the gate's hdrchk.pl, so I'm curious what 
>>>>>>> other people think.
>>>>>>
>>>>>> I think the two messages are used differently.  "Invalid or 
>>>>>> missing header
>>>>>> guard" is already used earlier in the code to indicate that the 
>>>>>> "#ident" line
>>>>>> marking the start of the guard wasn't found where it was 
>>>>>> expected.  "Header
>>>>>> guard does not match filename" is used to indicate that the 
>>>>>> constant value
>>>>>> found in the header does not match what was expected based on 
>>>>>> hdrchk's
>>>>>> application of cstyle rules.
>>>>>
>>>>> Yeah, I realise the different contexts of use.  It just seems to me 
>>>>> that __FOO_H__ not matching _FOO_H_ is a 'formatting' issue, rather 
>>>>> than a 'filename' issue.  It's minor, and not a huge deal to me 
>>>>> though.
>>>>
>>>> I see your point.  Perhaps you could reword the message slightly, 
>>>> such as
>>>> changing "does not match filename" to "name does not follow 
>>>> suggested style"
>>>> or something similar.
>>>
>>> What about:
>>> "Header guard does not match suggested style (_FILENAME_H_)"
>>>
>>> Or is that too nitty?
>>
>> No, not too nitty; it's helpful to state what is expected.  But in your
>> example, is "_FILENAME_H_" a static string, or would you actually print
>> the real expected string based on the real filename?  If so, in the case
>> of files like <sys/zone.h> you would want to suggest "_SYS_ZONE_H_" yet
>> you won't know about the "SYS_" part without looking at more than the
>> header basename.  :(
> 
> I was going to just have it be a static string for that exact reason. 
> :)  maybe _FILEPATH_H_ would be better (more suggestive that the path 
> should be incorporated)

That sounds good to me.

--Nathan

> 
>> I think that as long as the user gets a message that directs them to
>> review the style guidelines that should be good enough.
> 
> Yeah.
> 
> cheers,
> steve
> 


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