2021-07-23 15:48:51 +00:00
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package com.fastasyncworldedit.core.util;
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2018-08-12 14:03:07 +00:00
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public class MutableCharSequence implements CharSequence {
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private String str;
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2020-10-05 17:41:41 +00:00
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private int start;
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private int length;
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2018-08-12 14:03:07 +00:00
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private static final ThreadLocal<MutableCharSequence> mutableChar = ThreadLocal.withInitial(MutableCharSequence::new);
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public static MutableCharSequence getTemporal() {
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return mutableChar.get();
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}
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public MutableCharSequence(String parent, int start, int length) {
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this.str = parent;
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this.start = start;
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this.length = length;
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}
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2020-10-05 17:41:41 +00:00
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public MutableCharSequence() {
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}
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2018-08-12 14:03:07 +00:00
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public void setSubstring(int start, int end) {
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this.start = start;
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this.length = end - start;
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}
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public void setString(String str) {
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this.str = str;
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}
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@Override
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public int length() {
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return length;
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}
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@Override
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public char charAt(int index) {
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return str.charAt(index + start);
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}
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@Override
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public CharSequence subSequence(int start, int end) {
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return new MutableCharSequence(str, this.start + start, end - start + 1);
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}
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@Override
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public int hashCode() {
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int h = 0;
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for (int i = 0; i < length; i++) {
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h = 31 * h + str.charAt(i + start);
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}
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return h;
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}
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@Override
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public String toString() {
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return str.substring(start, start + length);
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}
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2018-08-21 17:22:37 +00:00
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public int indexOf(char c) {
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for (int i = 0; i < length; i++) {
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2020-10-05 17:41:41 +00:00
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if (charAt(i) == c) {
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return i;
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}
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2018-08-21 17:22:37 +00:00
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}
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return -1;
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}
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2018-08-12 14:03:07 +00:00
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@Override
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public boolean equals(Object obj) {
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CharSequence anotherString = (CharSequence) obj;
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if (length == anotherString.length()) {
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for (int i = length - 1; i >= 0; i--) {
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2020-10-05 17:41:41 +00:00
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if (charAt(i) != anotherString.charAt(i)) {
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return false;
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}
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2018-08-12 14:03:07 +00:00
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}
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return true;
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}
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return false;
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}
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}
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