CMU (or SBCL) has something call "ANSI" streams, or something like that, which are structures that behave like streams. They are used by the pretty printer and also by FORMAT.<br><br>In ECL we do not have that. We cannot cast arbitrary structures and impose that I/O operations work on them. The closest thing are Gray streams and this is what we use to implement CMU's FORMAT and pretty printer.<br>
<br><div class="gmail_quote">On Mon, Mar 15, 2010 at 4:21 PM, Raymond Toy <span dir="ltr"><<a href="mailto:toy.raymond@gmail.com">toy.raymond@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">On 3/15/10 9:19 AM, Juan Jose Garcia-Ripoll wrote:<br>
> There is no other way. CMU's format needs gray streams because it is<br>
> implemented using some intermediate streams to which things are<br>
> output. Same goes for pretty printer.<br>
</div>Does CMU's format really require gray streams? Gray streams is not<br>
normally loaded by default; the user needs to require it by hand.<br>
<br>
Ray<br>
<div><div></div><div class="h5"><br>
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