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Make String.compare() match the Java specification

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This commit is contained in:
Eric Scharff 2007-09-28 11:00:31 -06:00
parent 60eeb73e0f
commit 8a4d3effe0
1 changed files with 22 additions and 21 deletions
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43
classpath/java/lang/String.java
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@ -89,36 +89,37 @@ public final class String implements Comparable<String> {
public int compareTo(String s) {
if (this == s) return 0;
int d = length - s.length;
if (d != 0) {
return d;
} else {
for (int i = 0; i < length; ++i) {
d = charAt(i) - s.charAt(i);
if (d != 0) {
return d;
}
int idx = 0;
int result;
int end = (length < s.length ? length : s.length);
while (idx < end) {
if ((result = charAt(idx) - s.charAt(idx)) != 0) {
return result;
}
return 0;
idx++;
}
return length - s.length;
}
public int compareToIgnoreCase(String s) {
if (this == s) return 0;
int d = length - s.length;
if (d != 0) {
return d;
} else {
for (int i = 0; i < length; ++i) {
d = Character.toLowerCase(charAt(i))
- Character.toLowerCase(s.charAt(i));
if (d != 0) {
return d;
}
int idx = 0;
int result;
int end = (length < s.length ? length : s.length);
while (idx < end) {
if ((result =
Character.toLowerCase(charAt(idx)) -
Character.toLowerCase(s.charAt(idx))) != 0) {
return result;
}
return 0;
idx++;
}
return length - s.length;
}
public String trim() {