如何在XPath中“包含"正则表达式?功能 [英] How to use regex in XPath "contains" function

问题描述

我想使用以下正则表达式匹配以下文本sometext12345_text.

I would like to match the following text sometext12345_text using the below regex.

我在一项硒测试中正在使用它.

I'm using this in one of my selenium tests.

String expr = "//*[contains(@id, 'sometext[0-9]+_text')]";
driver.findElement(By.xpath(expr));

它似乎不起作用.有人可以帮忙吗?

It doesn't seem to work though. Can somebody help?

推荐答案

XPath 1.0本身无法处理正则表达式，您可以尝试类似

XPath 1.0 doesn't handle regex natively, you could try something like

//*[starts-with(@id, 'sometext') and ends-with(@id, '_text')]

(paul t指出，//*[boolean(number(substring-before(substring-after(@id, "sometext"), "_text")))]可用于执行与原始正则表达式相同的检查，如果您还需要检查中间数字的话)

(as pointed out by paul t, //*[boolean(number(substring-before(substring-after(@id, "sometext"), "_text")))] could be used to perform the same check your original regex does, if you need to check for middle digits as well)

在XPath 2.0中，尝试

In XPath 2.0, try

//*[matches(@id, 'sometext\d+_text')]

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