[Haskell-cafe] getErrorStatus in HXT

Tobias Schoofs tobias.schoofs at gmx.net
Sat Dec 4 19:05:10 CET 2010

Hi Uwe,

thanks a lot for the clarification!

Indeed, I was a bit confused since all other concepts in HXT are 
straight forward and easy to grasp.

When is the release of hxt-9.1 on hackage expected?

On 12/04/2010 05:49 PM, Uwe Schmidt wrote:
> Hi Tobias,
>> I have some problems with the error processing in HXT.
>> Here is a trivial example:
>> e<- runX (transformDoc [] someRules src dst)
>> transformDoc cfg rules src dst =
>>      configSysVars cfg>>>
>>      readDocument  [] src>>>
>>      rules>>>  -- some transformations
>>      writeDocument [] dst>>>
>>      getErrStatus
>> I would expect "e" to contain an error value>= c_err for the case where
>> any of the processing steps in transformDoc fails. But it does not, even
>> with an io error on writeDocument.
>> I guess I misunderstand "getErrStatus" in some way. Any idea?
> no, you've got it as it should be. This is an error introduced hxt-9.0
> when changing the internals of the global hxt state. I've removed that
> bug in the head of the development version.
> If there's no time for you to wait until hxt-9.1, the dev. version is available
> from github at "https://github.com/UweSchmidt/hxt".
> Sorry for that inconvenience,
>    Uwe

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