正则表达式在页面上找到两个单词

问题描述

我正在尝试查找包含单词"text1"和"text2"的所有页面.我的正则表达式:

I'm trying to find all pages which contain words "text1" and "text2".My regex:

text1(.|\n)*text2

它不起作用..

推荐答案

如果您的IDE支持s(单行)标志(因此.字符可以匹配换行符)，您可以使用以下方法搜索商品:

If your IDE supports the s (single-line) flag (so the . character can match newlines), you can search for your items with:

(text1).*(text2)|\2.*\1

带有s标志的示例

Example with s flag

如果IDE不支持s标志，则需要使用[\s\S]代替.:

If the IDE does not support the s flag, you will need to use [\s\S] in place of .:

(text1)[\s\S]*(text2)|\2[\s\S]*\1

带有[\s\S]

某些语言使用$1和$2代替\1和\2，因此您可能需要更改它们.

Some languages use $1 and $2 in place of \1 and \2, so you may need to change that.

或者，如果您只想匹配一个文件包含两个字符串(但实际上不选择任何内容)，则可以使用超前:

Alternately, if you want to simply match that a file contains both strings (but not actually select anything), you can utilize look-aheads:

(?s)^(?=.*?text1)(?=.*?text2)

这与参数的顺序(或数字)无关，对于您要搜索的每个其他文本，您只需附加另一个(?=.*?text_here).这种方法很好，因为您甚至可以包含正则表达式，而不仅仅是纯字符串.

This doesn't care about the order (or number) of the arguments, and for each additional text that you want to search for, you simply append another (?=.*?text_here). This approach is nice, since you can even include regex instead of just plain strings.

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