flex-devel

[Flex-devel] reentrant scanner by default

[ruertar <ru...@gm...>]

Hello!

I don't know if it his has been touched on before but I was wondering if
it would make sense to make reentrant scanner generation default and
have a fallback-mode for traditional, old-style scanners?

-ayan

Re: [Flex-devel] reentrant scanner by default

[Aaron S. <aa...@se...>]

Can't do it -- that would break nearly every existing scanner unless it
added some new option. There a lot of code out there that interacts with
a flex scanner and assumes that the globals will be available.

Aaron


On Sat, 2008-08-23 at 08:44 -0400, ruertar wrote:
> Hello!
> 
> I don't know if it his has been touched on before but I was wondering if
> it would make sense to make reentrant scanner generation default and
> have a fallback-mode for traditional, old-style scanners?
> 
> -ayan
> 
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Re: [Flex-devel] reentrant scanner by default

[ruertar <ru...@gm...>]

Aaron Stone wrote:
> Can't do it -- that would break nearly every existing scanner unless it
> added some new option.

Ya -- the idea would be to add an option to make a traditional,
non-reentrant scanner.

-ayan

Re: [Flex-devel] reentrant scanner by default

[Aaron S. <aa...@se...>]

On Aug 23, 2008, at 12:14 PM, ruertar wrote:

> Aaron Stone wrote:
>> Can't do it -- that would break nearly every existing scanner  
>> unless it
>> added some new option.
>
> Ya -- the idea would be to add an option to make a traditional,
> non-reentrant scanner.

Right, that's why it would break every single grammar in existence.  
The default cannot be changed.

Aaron