如何到＆lt;的foreach＆GT;在＆LT; macrodef＆GT ;? [英] How to <foreach> in a <macrodef>?

问题描述

我有一个XML就像如下：

I have a xml just like below:

<data>

    <foo>value1</foo>

    <foo>value2</foo>

    <foo>value3</foo>

  </data>

我要创建macrodef它实现以下功能：

I want to create macrodef which implements below function:

<?xml version="1.0"?>
<project name="OATS" default="execute" basedir=".">

  <xmlproperty file="data.xml" collapseAttributes="true"/>
  <target name="execute">
    <foreach list="${data.foo}" target="runScript" param="script"/>
  </target>
  <target name="runScript">
    <echo>Doing things with ${script}</echo>
  </target>
</project>

任何人知道如何？先谢谢了。

Anybody knows how to ? Thanks in advance.

推荐答案

xmltask 是在蚂蚁社区实现这一目的的最佳选择，而且你不必定义自己的macrodef。

xmltask is the best choice in the Ant community for this purpose, and you don't have to define your own macrodef.

因此​​，例如：

  <tools:xmltask source="data.xml" report="false" >
    <tools:call path="data/foo">
      <param name="value" path="text()"/>
      <actions>
          <echo>Doing things with @{value}</echo>
      </actions>
    </tools:call>
  </tools:xmltask>

我鼓励你阅读用户手册，为xmltask有很多的选择。它基本上支持XPath提取和重复你的XML的任何部分。它还支持除匿名code块现有目标调用（如示例）。

I encourage you to read the user manual, for xmltask has lots of options. It basically supports XPath to extract and iterate any portion of your xml. It also supports calls to existing targets in addition to anonymous code blocks (as in the example).

这只是很难被击败。

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