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<head><title>SET-BRR-TERM-EVISC-TUPLE.html -- ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>SET-BRR-TERM-EVISC-TUPLE</h2>controls printing of terms inside the <a href="BREAK-REWRITE.html">break-rewrite</a> loop
<pre>Major Section: <a href="BREAK-REWRITE.html">BREAK-REWRITE</a>
</pre><p>
This macro controls printing of terms inside the break-rewrite loop
(see <a href="BREAK-REWRITE.html">break-rewrite</a>).
<pre>
Examples:
(set-brr-term-evisc-tuple nil) ; default (inside brr)
(set-brr-term-evisc-tuple '(nil 3 4 nil))
</pre>
The first of the examples above restores the break-rewrite state to one in
which terms are printed in full. The second sets the print-level to 3 and
the print-length to 4, to replace substructures deeper than 3 by ``#'' and
those longer than 4 by ``...''; see see <a href="LD-EVISC-TUPLE.html">ld-evisc-tuple</a> for information about
the shape of the argument of this macro, which is evaluated.
<p>
This macro can be executed either inside a break from break-rewrite, or at
the top level. Its effect will persist, except potentially when you execute
``#.'' to exit break-rewrite.<p>
Here is an example showing the effect of this macro.
<pre>
1 ACL2 >:unify-subst
X : (CONS A
(CONS B
(CONS C
(CONS D (CONS E (CONS F (CONS G 'NIL)))))))
1 ACL2 >(set-brr-term-evisc-tuple (evisc-tuple 3 4 nil nil))
<state>
1 ACL2 >:unify-subst
X : (CONS A (CONS B (CONS C #)))
1 ACL2 >
</pre>
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