From 076c390b73cdb9d30277655d92c2213a55005d80 Mon Sep 17 00:00:00 2001
From: aarne <aarne@cs.chalmers.se>
Date: Thu, 16 Mar 2006 21:41:13 +0000
Subject: documenting nodupatom, announcing 2.5

---
 doc/gf-history.html | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'doc')

diff --git a/doc/gf-history.html b/doc/gf-history.html
index 9884129c4..1e91321db 100644
--- a/doc/gf-history.html
+++ b/doc/gf-history.html
@@ -14,6 +14,18 @@ Changes in functionality since May 17, 2005, release of GF Version 2.2
 
 <p>
 
+16/3 (AR) Added two flag values to <tt>pt -transform=X</tt>:
+<tt>nodup</tt> which excludes terms where a constant is duplicated,
+and
+<tt>nodupatom</tt> which excludes terms where an atomic constant is duplicated.
+The latter, in particular, is useful as a filter in generation:
+<pre>
+  gt -cat=Cl | pt -transform=nodupatom
+</pre>
+This gives a corpus where words don't (usually) occur twice in the same clause.
+
+<p>
+
 6/3 (AR) Generalized the <tt>gfe</tt> file format in two ways:
 <ol>
 <li> Use the real grammar parser, hence <tt>(in M.C "foo")</tt> expressions
-- 
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