ShadowTextUtils.java revision 99fafb79bf98b7aa1946bbda1f0a225cefa2d35d 
1package com.xtremelabs.robolectric.shadows;
2
3import android.text.TextUtils;
4import com.xtremelabs.robolectric.internal.Implementation;
5import com.xtremelabs.robolectric.internal.Implements;
6import com.xtremelabs.robolectric.util.Join;
7
8import java.util.Collection;
9
10@SuppressWarnings({"UnusedDeclaration"})
11@Implements(TextUtils.class)
12public class ShadowTextUtils {
13    @Implementation
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
25    public static boolean isEmpty(CharSequence s) {
26      return (s == null || s.length() == 0);
27    }
28
29    @Implementation
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
47    public static String join(CharSequence delimiter, Iterable tokens) {
48        return Join.join((String) delimiter, (Collection) tokens);
49    }
50
51    @Implementation
52    public static String join(CharSequence delimiter, Object[] tokens) {
53        return Join.join((String) delimiter, tokens);
54    }
55
56    @Implementation
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
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