Re: [Boa Constr] boa parser bug?

[Riaan B. <riaan@e.co.za>]

Hi Chris,

Chris Gahan wrote:
>>Yes, I'm aware of this problem. It is very difficult to fix 
>>(I have tried before). The root of the problem is that the 
>>source code parser Boa uses parses a line at a time, some 
>>line continuations are handled, but things like multiline doc 
>>strings where the indentation dedents really confuse it.
>>[...]
>>This limitation of the parser has always bothered me, but 
>>there aren't any simple fixes as far as I can see. Yet 
>>another todo item...
> 
> 
> Well, there is one simple fix... You could write a function that does a
> pre-processing pass over the code's and concatenates continued-lines into a
> single line. 

Identifying continued is not that simple. (The simple cases are handled
already)

 > And, since this is going to mess up line numbering, you could
> use a dictionary that maps this processed-file's line numbers to real line
> numbers! :D

The line numbers are used way too much in the code, changing
everything to work through a mapping is not an option.

> It's a simple hack, thanks to python's pythonness. Probably ungodly slow
> though.

Speed is indeed another issue, the current per-line-parser is *very*
fast.

Thanks for your suggestion, but I'd prefer a better way.

Cheers,
Riaan.