Re: dofile, loadfile, loadstring in a coroutine + token filter

[Graham Wakefield <lists@...>]

Or shouldn't I set FILTER to the original filter constructor when <eof> is detected, so that the coroutines can be collected and future calls to loadstring etc. will create new coroutines?

On Apr 23, 2007, at 6:18 AM, Luiz Henrique de Figueiredo wrote:

the token filter must be reset before every loadstring, loadfile or  

dofile call.  I'm trying to figure out why - the coroutines never  

return so they should always be resumable.

It's because the lex state is saved as an upvalue of the raw get token

function that is passed to the token filter. So, although the coroutine

hasn't returned, it is still using an old lex state. I'm sorry, the docs

and the code should be more explicit about this. One simple way to handle

this is to set FILTER to nil when <eof> is seen.

--lhf

grrr waaa

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