如何在比赛第一次发生时停止? [英] How to stop at first occurence of match?

问题描述

我在这里有这个样本:

received date
something
something
26/6/2013
.
.
due date
something
27/6/2013

我只想获取第一次出现的接收日期".我正在尝试使用我拥有的这个正则表达式:

I want to get just the first occurence of Received Date. I am trying to use this regular expression I have:

(?is)(?<=(invoice)?(?<!due.*?)date.*?)(\d{1,4}/\d{1,4}/\d{1,4})

我想要做的是获取在其之前是否有接收日期的日期，但要避免获取到期日期前缀.我只想获取2013年6月26日的信息..可能也可以像这样工作:

What I want to do is to get the date that either has a received preceding it or not, but to avoid getting if there is a prefix of due. I just want to get the 26/6/2013 .. also possibly, it would work the same with something like this:

date
something
something
26/6/2013
.
.
due date
something
27/6/2013

我是regex的新手，我花了很多时间尝试各种不同的组合，但似乎都不起作用！

I am new to regex, and I spent a lot of time trying out different combinations but none seemed to work!

请帮助谢谢！

我正在使用Expresso.

I am using Expresso..

这是我从上面获得的输出:

Here is the output I am getting from the above:

26/6/2013
27/6/2013

再次，我只想要第一个.

Again, I only want to get the first one..

推荐答案

问题可以简化为:获取第一个日期.

The problem can be simplified to: Get the first date.

(?s)(\d{1,2}/\d{1,2}/\d{2,4}).*

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