X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FDBRefUtils.java;fp=src%2Fjalview%2Futil%2FDBRefUtils.java;h=07e8a56bf9092329001e88b6e0649aee50368b75;hb=586ade46bdcd05ff028a1cff82c3c527326d28ec;hp=ae0243e9ce2de227f76c812b580a5f4f8e3aa944;hpb=adcef27f5747b4e70e89a56c3735bc3afb8ce9bf;p=jalview.git

diff --git a/src/jalview/util/DBRefUtils.java b/src/jalview/util/DBRefUtils.java
index ae0243e..07e8a56 100755
--- a/src/jalview/util/DBRefUtils.java
+++ b/src/jalview/util/DBRefUtils.java
@@ -307,6 +307,15 @@ public class DBRefUtils
 
 	};
 
+  private static Regex PARSE_REGEX;
+
+  private static Regex getParseRegex()
+  {
+    return (PARSE_REGEX == null ? PARSE_REGEX = Platform.newRegex(
+            "([0-9][0-9A-Za-z]{3})\\s*(.?)\\s*;\\s*([0-9]+)-([0-9]+)")
+            : PARSE_REGEX);
+  }
+
   /**
    * Parses a DBRefEntry and adds it to the sequence, also a PDBEntry if the
    * database is PDB.
@@ -334,8 +343,7 @@ public class DBRefUtils
          * Check for PFAM style stockhom PDB accession id citation e.g.
          * "1WRI A; 7-80;"
          */
-        Regex r = new com.stevesoft.pat.Regex(
-                "([0-9][0-9A-Za-z]{3})\\s*(.?)\\s*;\\s*([0-9]+)-([0-9]+)");
+        Regex r = getParseRegex();
         if (r.search(acn.trim()))
         {
           String pdbid = r.stringMatched(1);