X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Futil%2FStringUtil.java;h=8c046eedaef265a1dc778e242d5cbb89970b5f03;hb=225993309e6183afa9a88fc13d39df56be54b992;hp=5e39447c08737ad0b5e6fdd6f6886a1577d6eed1;hpb=927dc9b785de472f2237c5adbc4d2ad12f16cc2d;p=sbp.git

diff --git a/src/edu/berkeley/sbp/util/StringUtil.java b/src/edu/berkeley/sbp/util/StringUtil.java
index 5e39447..8c046ee 100644
--- a/src/edu/berkeley/sbp/util/StringUtil.java
+++ b/src/edu/berkeley/sbp/util/StringUtil.java
@@ -3,6 +3,10 @@ package edu.berkeley.sbp.util;
 /** miscellaneous string utilities */
 public class StringUtil {
 
+    public static String pad(int i,String s) {
+        return s.length() >= i ? s : pad(i-1,s)+" ";
+    }
+
     public static String join(String[] s, String sep) {
         StringBuffer ret = new StringBuffer();
         for(int i=0; i<s.length; i++) {
@@ -51,6 +55,7 @@ public class StringUtil {
     */
     public static String escapify(String s) { return escapify(s, "\\\n\r"); }
     public static String escapify(String s, String illegal) {
+        if (s==null) return null;
         StringBuffer sb = new StringBuffer();
         for(int i=0; i<s.length(); i++) {
             char c = s.charAt(i);