1 package com.android.mail.utils; 2 3 import android.support.v4.text.BidiFormatter; 4 5 /** 6 * A small utility class for working with strings. 7 */ 8 public class StringUtils { 9 10 /** 11 * Returns a string containing the tokens joined by delimiters. 12 * Additionally, each token is first passed through {@link BidiFormatter#unicodeWrap(String)} 13 * before appending to the string. 14 */ 15 public static String joinAndBidiFormat(String delimiter, Iterable<String> tokens) { 16 return joinAndBidiFormat(delimiter, tokens, BidiFormatter.getInstance()); 17 } 18 19 /** 20 * Returns a string containing the tokens joined by delimiters. 21 * Additionally, each token is first passed through {@link BidiFormatter#unicodeWrap(String)} 22 * before appending to the string. 23 */ 24 public static String joinAndBidiFormat( 25 String delimiter, Iterable<String> tokens, BidiFormatter bidiFormatter) { 26 final StringBuilder sb = new StringBuilder(); 27 boolean firstTime = true; 28 for (String token : tokens) { 29 if (firstTime) { 30 firstTime = false; 31 } else { 32 sb.append(delimiter); 33 } 34 sb.append(bidiFormatter.unicodeWrap(token)); 35 } 36 return sb.toString(); 37 } 38 } 39
