句子中一组特定单词的正则表达式

Question

在创建可以在句子中定位特定单词集的正则表达式方面，我需要一些帮助。在我们搜索句子之前，特定的单词或单词集是已知的。这些词将永远存在于句子中。随着时间的推移，该集合将扩大。下面的例子，

一组词：“of the house”、“time”、“this is how”、“coming", "家"

应该返回匹配的句子：

1) “我要出来of the house” -> 匹配“of the house”

2）“我记得我小时候的时间”->匹配“时间”

3) “好吧，我不确定你做了什么，但是这就是我解决问题的方法”-> 匹配“这就是方法”

4) “你什么时候回家回家？” -> 匹配“home”

更新：实现语言将是 PHP

Answer 1

说明

此表达式将匹配您的短语，并确保它们不会嵌入另一个更大的单词中。

^.*?(?:\s|^)(of\sthe\shouse|time|this\sis\show|home)(?=\W|$).*

PHP 代码示例：

你没有指定语言，所以我只是提供这个 php 示例来简单地展示它是如何工作的。

示例文本

1) "I was coming out of the house"
2) "I remember the time when I used to be a baby"
3) "Well, I am not sure what you did, but this is how I fix my problems"
4) "When are you coming home?"
5) "This is howard Timey said of the houseboat"
6) "The last word in this line is home

代码

<?php
$sourcestring="your source string";
preg_match_all('/^.*?(?:\s|^)(of\sthe\shouse|time|this\sis\show|home)(?=\W|$).*/imx',$sourcestring,$matches);
echo "<pre>".print_r($matches,true);
?>

匹配项

[0] => Array
    (
        [0] => 1) "I was coming out of the house"
        [1] => 2) "I remember the time when I used to be a baby"
        [2] => 3) "Well, I am not sure what you did, but this is how I fix my problems"
        [3] => 4) "When are you coming home?"
        [4] => 6) "The last word in this line is home
    )

[1] => Array
    (
        [0] => of the house
        [1] => time
        [2] => this is how
        [3] => home
        [4] => home
    )