From maintainers-request at octave dot org Mon Feb 20 17:15:01 2006
Subject: Re: How to break out of a computation?
From: "Sebastien Loisel" <sloisel at gmail dot com>
To: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
Cc: "octave maintainers mailing list" <maintainers at octave dot org>
Date: Tue, 21 Feb 2006 00:13:21 +0100

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>
> If the code in pager.cc is close to what you want, but doesn't quite
> > do everything you need, then we can probably fix things so that it
> >
> as we've been discussing, this isn't possible in MinGW. The C++ way is to
> add a virtual write() function to octave_pager_stream, whose default logi=
c
> is something like
>

Upon further consideration of pager.cc, I think what you're getting at is
the diary functionality, and I notice now that any embedder will necessarel=
y
break that as it is right now.

The most natural way of extending the code to allow for an embedder, in the
style it's written currently, would be to allow for external_pager not to b=
e
an oprocstream, but some object with all virtual functions, which I could
set from the embedder. (Basically, they'd be callbacks.)

Well, you tell me.

S=E9bastien Loisel

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<div><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(=
204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><span c=
lass=3D"q"><blockquote class=3D"gmail_quote" style=3D"border-left: 1px soli=
d rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
If the code in pager.cc is close to what you want, but doesn't quite
<br>do everything you need, then we can probably fix things so that it<br><=
/blockquote></span><div>as we've been discussing, this isn't possible in Mi=
nGW. The C++ way is to add a virtual write() function to octave_pager_strea=
m, whose default logic is something like
<br></div></div></blockquote></div><br>Upon further consideration of pager.=
cc, I think what you're getting at is the diary functionality, and I notice=
 now that any embedder will necessarely break that as it is right now.
<br><br>The most natural way of extending the code to allow for an embedder=
, in the style it's written currently, would be to allow for external_pager=
 not to be an oprocstream, but some object with all virtual functions, whic=
h I could set from the embedder. (Basically, they'd be callbacks.)
<br><br>Well, you tell me.<br><br>S=E9bastien Loisel<br><br>

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