确定字符串是否包含任何一组字符串

I'm using Mechanize to interact with a few web pages, and I'm trying to determine whether a given form submission resulted in an error.

我正在使用Mechanize与几个网页进行交互，我正在尝试确定给定的表单提交是否导致错误。

Right now I'm doing this:

现在我这样做：

agent.page.body.include?("I'm an error message!")

But I just discovered another error message. Since I don't want to do:

但我刚刚发现了另一条错误消息。既然我不想这样做：

agent.page.body.include?("I'm an error message!") || agent.page.body.include?("Another error message")

How can I determine whether the page body contains either error message?

如何确定页面正文是否包含错误消息？

2 个解决方案

error_messages.any? { |mes| agent.page.body.include? mes }

Alternatively, do it in one Regex pass:

或者，在一个Regex传递中执行：

error_messages = /I'm an error message!|Another error message/
if agent.page.body =~ error_messages
  ...
end

You'll need to ensure that you escape any error messages that contain special regex characters. To make it maintainable:

您需要确保转义包含特殊正则表达式字符的任何错误消息。为了使其可维护：

if agent.page.body =~ Regexp.union("foo", "bar", "jim.bob", "jam|jam")
  ...
end

You should only use this if you have tested and found the speed of Nakilon's answer is not enough, however. :)

你应该只使用它，如果你已经测试过，并且发现Nakilon答案的速度还不够。 :)

error_messages.any? { |mes| agent.page.body.include? mes }