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add String.lastIndexOf(String,int); defer to Pattern.split in String.split

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This commit is contained in:
Joel Dice 2009-08-12 19:39:29 -06:00
parent bf48f1e297
commit dd82b58dad
1 changed files with 11 additions and 39 deletions
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50
classpath/java/lang/String.java
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@ -357,9 +357,13 @@ public final class String
} }
public int lastIndexOf(String s) { public int lastIndexOf(String s) {
if (s.length == 0) return length; return lastIndexOf(s, length - s.length);
}
for (int i = length - s.length; i >= 0; --i) { public int lastIndexOf(String s, int lastIndex) {
if (s.length == 0) return lastIndex;
for (int i = Math.min(length - s.length, lastIndex); i >= 0; --i) {
int j = 0; int j = 0;
for (; j < s.length && i + j < length; ++j) { for (; j < s.length && i + j < length; ++j) {
if (charAt(i + j) != s.charAt(j)) { if (charAt(i + j) != s.charAt(j)) {
@ -521,44 +525,12 @@ public final class String
} }
} }
public String[] split(String s) { public String[] split(String regex) {
String[] array = new String[(length / s.length) + 1]; return split(regex, 0);
int index = 0; }
int last = 0;
int position = 0;
for (int i = 0; i < length - s.length + 1;) {
int j;
for (j = 0; j < s.length; ++j) {
if (charAt(i + j) != s.charAt(j)) {
break;
}
}
if (j == s.length) { public String[] split(String regex, int limit) {
if (i > 0) { return Pattern.compile(regex).split(this, limit);
if (i > position) {
last = index;
}
array[index++] = substring(position, i);
}
i = position = i + s.length;
} else {
++ i;
}
}
if (position < length) {
last = index;
array[index] = substring(position, length);
}
if (last + 1 < array.length) {
String[] a = new String[last + 1];
System.arraycopy(array, 0, a, 0, last + 1);
array = a;
}
return array;
} }
public CharSequence subSequence(int start, int end) { public CharSequence subSequence(int start, int end) {