src/main/java/org/jboss/util/Strings.java
/**
    * Substitute index identifiers with the replacement value from the
    * given array for the corresponding index.
    *
    * @param buff       The string buffer used for the substitution
    *                   (buffer is not reset).
    * @param string     String substitution format.
    * @param replace    Array of strings whose values will be used as 
    *                   replacements in the given string when a token with
    *                   their index is found.
    * @param token      The character token to specify the start of an index
    *                   reference.
    * @return           Substituted string.
    */
Substitute index identifiers with the replacement value from the
given array for the corresponding index.

@param buff       The string buffer used for the substitution
(buffer is not reset).
@param string     String substitution format.
@param replace    Array of strings whose values will be used as
replacements in the given string when a token with
their index is found.
@param token      The character token to specify the start of an index
reference.
@return           Substituted string.
Substitute index identifiers with the replacement value from the given array for the corresponding index . @param buff The string buffer used for the substitution ( buffer is not reset ) . @param string String substitution format . @param replace Array of strings whose values will be used as replacements in the given string when a token with their index is found . @param token The character token to specify the start of an index reference . @return Substituted string .
public static String subst(final StringBuffer buff, final String string,
      final String replace[], final char token)
   {
      int i = string.length();
      for (int j = 0; j >= 0 && j < i; j++)
      {
         char c = string.charAt(j);
         if (c == token)
         {
            if (j != i)
            {
               int k = Character.digit(string.charAt(j + 1), 10);
               if (k == -1)
               {
                  buff.append(string.charAt(j + 1));
               }
               else if (k < replace.length)
               {
                  buff.append(replace[k]);
               }
               j++;
            }
         }
         else
         {
            buff.append(c);
         }
      }
      return buff.toString();
   }
public static String subst ( final StringBuffer buff , final String string , final String replace [ ] , final char token ) { int i = string . length ( ) ; for ( int j = 0 ; j >= 0 && j < i ; j ++ ) { char c = string . charAt ( j ) ; if ( c == token ) { if ( j != i ) { int k = Character . digit ( string . charAt ( j + 1 ) , 10 ) ; if ( k == - 1 ) { buff . append ( string . charAt ( j + 1 ) ) ; } else if ( k < replace . length ) { buff . append ( replace [ k ] ) ; } j ++ ; } } else { buff . append ( c ) ; } } return buff . toString ( ) ; }
Substitute index identifiers with the replacement value from the
 given array for the corresponding index.
Substitute index identifiers with the replacement value from the given array for the corresponding index .
// if the char is the token, then get the index // if we aren't at the end of the string, get the index