X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fbits%2FStringUtils.java;h=d33f71f4e0031710e52ed008fefa0f37f28883c4;hb=d442b96e0b1453c21abf7f34bfaf73dcbed2a7ee;hp=2a4fc1dc152b4cbb3dc1ba5fb5dc49b4d3ca940c;hpb=c334c9a224670c537a5369e8e4e3307001a03acb;p=fanfix.git

diff --git a/src/jexer/bits/StringUtils.java b/src/jexer/bits/StringUtils.java
index 2a4fc1d..d33f71f 100644
--- a/src/jexer/bits/StringUtils.java
+++ b/src/jexer/bits/StringUtils.java
@@ -42,6 +42,11 @@ import java.util.Arrays;
  *
  *    - Read/write a line of RFC4180 comma-separated values strings to/from a
  *      list of strings.
+ *
+ *    - Compute number of visible text cells for a given Unicode codepoint or
+ *      string.
+ *
+ *    - Convert bytes to and from base-64 encoding.
  */
 public class StringUtils {
 
@@ -467,6 +472,10 @@ public class StringUtils {
      * @return the number of text cell columns required to display this string
      */
     public static int width(final String str) {
+        if (str == null) {
+            return 0;
+        }
+
         int n = 0;
         for (int i = 0; i < str.length();) {
             int ch = str.codePointAt(i);