# HG changeset patch
# User wenzelm
# Date 1204842636 -3600
# Node ID ba4f5954843dee4ad5e5b5bc10078dae08e71c8c
# Parent  116d3cfc0d8933fc653e1961ae83e9aae17099af
check ISABELLE_BROWSER_INFO before cd;

diff -r 116d3cfc0d89 -r ba4f5954843d lib/Tools/browser
--- a/lib/Tools/browser	Thu Mar 06 21:53:29 2008 +0100
+++ b/lib/Tools/browser	Thu Mar 06 23:30:36 2008 +0100
@@ -64,7 +64,7 @@
 export CLASSPATH="$(javapath "$ISABELLE_HOME/lib/browser/GraphBrowser.jar")"
 
 if [ -z "$GRAPHFILE" ]; then
-  cd "$ISABELLE_BROWSER_INFO"
+  [ -d "$ISABELLE_BROWSER_INFO" ] && cd "$ISABELLE_BROWSER_INFO"
   exec java GraphBrowser.GraphBrowser
 else
   PRIVATE_FILE="${ISABELLE_TMP:-/tmp}/$$"$(basename "$GRAPHFILE")