JAL-629 PAE matrix file guesstimate from filename

[jalview.git] / src / jalview / util / StringUtils.java

diff --git a/src/jalview/util/StringUtils.java b/src/jalview/util/StringUtils.java
index 8b62e48..7e1b8ad 100644 (file)
--- a/src/jalview/util/StringUtils.java
+++ b/src/jalview/util/StringUtils.java
@@ -20,12 +20,12 @@
  */
 package jalview.util;
 
-import java.util.Locale;
-
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class StringUtils
@@ -585,4 +585,35 @@ public class StringUtils
     }
     return min < text.length() + 1 ? min : -1;
   }
+
+  public static int indexOfFirstWhitespace(String text)
+  {
+    int index = -1;
+    Pattern pat = Pattern.compile("\\s");
+    Matcher m = pat.matcher(text);
+    if (m.find())
+    {
+      index = m.start();
+    }
+    return index;
+  }
+
+  /*
+   * implementation of String.replaceLast.
+   */
+  public static String replaceLast(String string, String toReplace,
+          String replacement)
+  {
+    int pos = string.lastIndexOf(toReplace);
+    if (pos > -1)
+    {
+      return string.substring(0, pos) + replacement
+              + string.substring(pos + toReplace.length());
+    }
+    else
+    {
+      return string;
+    }
+  }
+
 }