[cfe-dev] RFC: Extend clang-format to support more/all C-like languages

[Manuel Klimek]

On Sat, Nov 2, 2013 at 4:18 PM, Sean Silva <silvas at purdue.edu> wrote:

>
>
>
> On Fri, Nov 1, 2013 at 5:50 PM, Daniel Jasper <djasper at google.com> wrote:
>
>> My gut feeling is that we won't need to change the lexer. Bear in mind,
>> that (same as with everything else in clang-format) we only need to
>> understand the language good enough to format it. There might always be
>> corner cases where we aren't correct, but these are rare in practice.
>>
>
> How do you intend to lex JavaScript's === and !== operators? Or the `var`
> keyword? These aren't "corner cases" at all.
>

What do you expect to be formatted differently because of those?


>
> -- Sean Silva
>
>
>
>>
>> In fact, I would like to go ahead and see whether we really hit the limit
>> somewhere and if so, what the problems are. Once we have sufficient
>> information, we can make a good decision on how to continue. Options would
>> be allowing different lexers or post-processing the output of Clang's
>> lexer. I fully agree that we should not modify the lexer to accommodate
>> other languages.
>>
>>
>> On Fri, Nov 1, 2013 at 9:17 PM, Chandler Carruth <chandlerc at google.com>wrote:
>>
>>>
>>> On Fri, Nov 1, 2013 at 1:13 PM, Ryan Gonzalez <rymg19 at gmail.com> wrote:
>>>
>>>> What if the lexer was an overly large, non-abstract base class? Then,
>>>> the derived classes can just override the tokens as needed.
>>>
>>>
>>> (FWIW, I wouldn't try to design changes to the lexer in this thread, in
>>> the abstract... If this is an interesting path to pursue, I suspect Daniel
>>> or others should produce concrete proposed patches that enable the features
>>> needed and minimize the pollution of the lexer with other languages...)
>>>
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>>>
>>
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