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1. 优化了保存结果的StringBuilder的初始化长度;

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2. 优化了expression的重置操作;
3. 优化了解析异常时的处理;
This commit is contained in:
Zjp 2022-11-09 11:12:46 +08:00
parent 0eb1ecb1b7
commit 1d25cbdd24
1 changed files with 5 additions and 5 deletions
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10
hutool-core/src/main/java/cn/hutool/core/text/PlaceholderParser.java
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@ -1,5 +1,6 @@
package cn.hutool.core.text; package cn.hutool.core.text;
import cn.hutool.core.exceptions.UtilException;
import cn.hutool.core.lang.Assert; import cn.hutool.core.lang.Assert;
import java.util.Objects; import java.util.Objects;
@ -102,7 +103,7 @@ public class PlaceholderParser implements UnaryOperator<String> {
// 开始匹配 // 开始匹配
char[] src = text.toCharArray(); char[] src = text.toCharArray();
final StringBuilder result = new StringBuilder(); final StringBuilder result = new StringBuilder(src.length);
StringBuilder expression = new StringBuilder(); StringBuilder expression = new StringBuilder();
while (openCursor > -1) { while (openCursor > -1) {
@ -136,15 +137,14 @@ public class PlaceholderParser implements UnaryOperator<String> {
} }
} }
// 未能找到结束符号，说明匹配结束 // 未能找到结束符号，说明匹配异常
if (end == -1) { if (end == -1) {
result.append(src, openCursor, src.length - openCursor); throw new UtilException("\"{}\" 中字符下标 {} 处的开始符没有找到对应的结束符", text, openCursor);
closeCursor = src.length;
} }
// 找到结束符号，将开始到结束符号之间的字符串替换为指定表达式 // 找到结束符号，将开始到结束符号之间的字符串替换为指定表达式
else { else {
result.append(processor.apply(expression.toString())); result.append(processor.apply(expression.toString()));
expression = new StringBuilder(); expression.setLength(0);
// 完成当前占位符的处理匹配，寻找下一个 // 完成当前占位符的处理匹配，寻找下一个
closeCursor = end + close.length(); closeCursor = end + close.length();
} }