Re: [Nasm-devel] [nasm:master] BR30730640: Restore preprocessor token concatenation rules

[H. P. A. <hp...@zy...>]

On 10/01/2010 10:23 AM, Cyrill Gorcunov wrote:
>>
>> NASM 0.98 only supported implicit concatenation (mmac), with
>> three simple rules:
>>
>> - TOK_WHITE + TOK_WHITE
>> - TOK_ID + {TOK_ID,TOK_NUMBER}
>> - TOK_NUMBER + TOK_NUMBER
>>
> 
> Can't say about .98 _but_ 0.98.39 has
> 
> expand_mmac_params (same as you just pointed)
> 	[TOK_ID]	+ [(TOK_ID|TOK_NUMBER)]
> 	[TOK_NUMBER]	+ [TOK_NUMBER]
> 
> 	Multiple TOK_WHITESPACE simply folded into one entity
> 
> expand_smacro
> 	[(TOK_ID|TOK_PREPROC_ID)] + [(TOK_ID|TOK_PREPROC_ID|TOK_NUMBER)]
> 
> As you may see it supports implicit concats in both ways: mmacs and smacs.
> 

Yes, 0.98.03 introduced %+ and I'm sure there were other changes in the
0.98 series.  Ultimately the whole problem is that then entire thing
looks reasonable, but is in fact wrong in a number of cases.

	-hpa