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Implementation of String.replace(CharSequence, CharSequence)

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Marcel van den Boer 2011-04-08 20:31:33 -06:00 committed by Joel Dice
parent 97aec1691e
commit 76fa43548d
1 changed files with 36 additions and 0 deletions
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36
classpath/java/lang/String.java
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@ -494,6 +494,42 @@ public final class String
public String replaceAll(String regex, String replacement) {
return Pattern.compile(regex).matcher(this).replaceAll(replacement);
}
public String replace(CharSequence target, CharSequence replace) {
if (target.length() == 0) {
return this.infuse(replace.toString());
}
String targetString = target.toString();
String replaceString = replace.toString();
int targetSize = target.length();
StringBuilder returnValue = new StringBuilder();
String unhandled = this;
int index = -1;
while ((index = unhandled.indexOf(targetString)) != -1) {
returnValue.append(unhandled.substring(0, index)).append(replaceString);
unhandled = unhandled.substring(index + targetSize,
unhandled.length());
}
returnValue.append(unhandled);
return returnValue.toString();
}
private String infuse(String infuseWith) {
StringBuilder retVal = new StringBuilder();
String me = this;
for (int i = 0; i < me.length(); i++) {
retVal.append(infuseWith).append(me.substring(i, i + 1));
}
retVal.append(infuseWith);
return retVal.toString();
}
public native String intern();