Re: issue with read_stream_to_codes/2 on windows

Hi Jos,

SWI-Prolog uses I/O wrappers if it is running in a Windows console to
support colored output and unbuffered input. This only used to check
output. I've now added test for input. This also makes
stream_property/2's tty(Bool) property work as it should.

Should be in tomorrows daily builds.

	Cheers --- Jan

On 03/01/2014 12:21 PM, Jos De Roo wrote:
> Hi Jan,
>
> Here is an issue with read_stream_to_codes/2 on windows:
>
> D:\>echo hello | swipl -g "read_stream_to_codes(user_input, Codes),
> atom_codes(Atom, Codes), write(Atom)"
> |:
> ERROR: Prolog initialisation failed:
> ERROR: read_util:read_stream_to_codes/2: I/O error in read on stream
> user_input (The handle is invalid.
> )
>
> Typing a ^Z after "hello" works:
>
> D:\>echo hello^Z | swipl -g "read_stream_to_codes(user_input, Codes),
> atom_codes(Atom, Codes), write(Atom)"
> hello
>
> but this cannot be done for other cases like:
>
> D:\>type hello.txt | swipl -g "read_stream_to_codes(user_input, Codes),
> atom_codes(Atom, Codes), write(Atom)"
> |:
> ERROR: Prolog initialisation failed:
> ERROR: read_util:read_stream_to_codes/2: I/O error in read on stream
> user_input (The handle is invalid.
> )
>
>
> Kind Regards,
>
> Jos De Roo | Agfa HealthCare
> Senior Researcher | HE/Advanced Clinical Applications Research
> T  +32 3444 7618 | F  +32 3 444 8211 | M  +32 494 56 03 95
>
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