1 package com.xtremelabs.robolectric.shadows;
2 
3 import android.text.TextUtils;
4 import com.xtremelabs.robolectric.internal.Implementation;
5 import com.xtremelabs.robolectric.internal.Implements;
6 import com.xtremelabs.robolectric.util.Join;
7 
8 import java.util.Collection;
9 
10 @SuppressWarnings({"UnusedDeclaration"})
11 @Implements(TextUtils.class)
12 public class ShadowTextUtils {
13     @Implementation
expandTemplate(CharSequence template, CharSequence... values)14     public static CharSequence expandTemplate(CharSequence template,
15                                               CharSequence... values) {
16         String s = template.toString();
17         for (int i = 0, valuesLength = values.length; i < valuesLength; i++) {
18             CharSequence value = values[i];
19             s = s.replace("^" + (i + 1), value);
20         }
21         return s;
22     }
23 
24     @Implementation
isEmpty(CharSequence s)25     public static boolean isEmpty(CharSequence s) {
26       return (s == null || s.length() == 0);
27     }
28 
29     @Implementation
getTrimmedLength(CharSequence s)30     public static int getTrimmedLength(CharSequence s) {
31         int len = s.length();
32 
33         int start = 0;
34         while (start < len && s.charAt(start) <= ' ') {
35             start++;
36         }
37 
38         int end = len;
39         while (end > start && s.charAt(end - 1) <= ' ') {
40             end--;
41         }
42 
43         return end - start;
44     }
45 
46     @Implementation
join(CharSequence delimiter, Iterable tokens)47     public static String join(CharSequence delimiter, Iterable tokens) {
48         return Join.join((String) delimiter, (Collection) tokens);
49     }
50 
51     @Implementation
join(CharSequence delimiter, Object[] tokens)52     public static String join(CharSequence delimiter, Object[] tokens) {
53         return Join.join((String) delimiter, tokens);
54     }
55 
56     @Implementation
isDigitsOnly(CharSequence str)57     public static boolean isDigitsOnly(CharSequence str) {
58         final int len = str.length();
59         for (int i = 0; i < len; i++) {
60           if (!Character.isDigit(str.charAt(i))) {
61             return false;
62           }
63         }
64         return true;
65     }
66 
67     @Implementation
split(String text, String expression)68     public static String[] split(String text, String expression) {
69     	if(text.length() == 0) {
70     		return new String[]{};
71     	}
72 
73     	return text.split(expression);
74     }
75 }
76