蚂蚁replaceregex取代多行 [英] ant replaceregex replace multiline

问题描述

我需要的文件替换多行字符串，像这样的：

I need replace multiline string in file, like this:

startString
bla bla bla
...
endString

蚂蚁replaceregex。
蚂蚁code：

by ant replaceregex. Ant code:

    <copy file="${file}" tofile="${newFile}" overwrite="true">
        <filterchain>
            <replaceregex pattern="startString(.+)endString" replace="zzz" flags="gmi" byline="true"/>
        </filterchain>      
    </copy>

如果文本替换为单行 - 所有的作品正确的，但如果文字是多行 - replaceregex不起作用。
我应该在code修复么？

If text for replace is Single line - all works correct, but when text is multiline - replaceregex doesn't work. What I should fix in my code?

推荐答案

有一对夫妇，你需要做的改变。有一对夫妇的设置，您就表明输入的每一行，应考虑输入一个单独的线，是署名属性和 M 标记。在下面我已经删除了这些还增加它把输入文件输入的单行取值标记：

There are a couple of changes you need to do. There are a couple of settings you had suggesting that each line of input should be considered a separate line of input which are the byline attribute and the m flag. In the following I have removed those and also added the s flag which treats the input file a single line of input:

<replaceregex pattern="startString(.+?)endString" replace="zzz"
    flags="gis" byline="false"/>

另外要注意在正则表达式中加入的？，这使得非通配符贪婪万一你要匹配多次出现。

Also note the addition of the ? in the regex, this makes the wildcard non greedy in case you have multiple occurrences you want to match.

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蚂蚁 ReplaceRegExp 文档了解更多。

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