Java或ANT下的正则表达式中输出换行符

Question

的 ant 目标，

<target name="regexp.replace">
    <replaceregexp file="${file.temp}"
                   match="(.*)"
                   replace="first operation on \1  second operation on \1"
                   byline="true"/>
</target>

我有调用replaceregexp 任务file.temp

A1
A2

所需的输出是

first operation on A1
second operation on A1
first operation on A2
second operation on A2

插入什么作为新行字符以在 ant Replaceregexp 参数中生成所需的输出？

 replace="first operation on \1 %NEW_LINE% second operation on \1"

Answer 1

以下对我有用：

<replaceregexp file="test.txt"
               match="(.*)"
               replace="first operation on \1${line.separator}second operation on \1"
               byline="true"/>