From 027307857ea7a89227db88a202925dd2ffbde2d0 Mon Sep 17 00:00:00 2001
From: Doron Cohen <doronc@apache.org>
Date: Tue, 12 Aug 2008 10:49:59 +0000
Subject: [PATCH] LUCENE-1353: Javacc target to generate precedence query
 parser.

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@685114 13f79535-47bb-0310-9956-ffa450edef68
---
 CHANGES.txt                     |  3 +++
 contrib/miscellaneous/build.xml | 14 ++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/CHANGES.txt b/CHANGES.txt
index 116627d8eec..a3405f517d7 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -266,6 +266,9 @@ Build
      with contribs.  Of particular note: a single clover db is used
      regardless of whether tests are run globally or in the specific
      contrib directories. 
+     
+  3. LUCENE-1353: Javacc target in contrib/miscellaneous for 
+     generating the precedence query parser. 
 
 Test Cases
 
diff --git a/contrib/miscellaneous/build.xml b/contrib/miscellaneous/build.xml
index 0da3506e06e..ad311b595ad 100644
--- a/contrib/miscellaneous/build.xml
+++ b/contrib/miscellaneous/build.xml
@@ -26,4 +26,18 @@
   </description>
 
   <import file="../contrib-build.xml"/>
+
+  <property name="javacc.path" location="src/java/org/apache/lucene/queryParser/precedence"/>
+
+  <target name="javacc" depends="javacc-check" description="generate precedence query parser from jj (requires javacc 3.2)">
+    <delete>
+      <fileset dir="${javacc.path}" includes="*.java">
+        <containsregexp expression="Generated.*By.*JavaCC"/>
+      </fileset>
+    </delete>
+    <invoke-javacc target="${javacc.path}/PrecedenceQueryParser.jj"
+                   outputDir="${javacc.path}"
+    />
+  </target>
+
 </project>