鉴于以下表达式,我如何使用 =
更简洁明确?
Given the following expression, how can I use =
to be more concise and explicit?
(//h2/@id[contains(.,"foo") or contains(.,"bar") or contains(.,"baz"))[last()]
这是我尝试过的,但我的翻译说它无效:
Here's what I tried, but my interpreter says it's not valid:
(//h2/@id[text() = ("foo", "bar", "baz")])[last()]
我不能使用 contains()
因为我需要防止子字符串匹配.我正在使用 XPath 1.0,an answer to a related question 是这个问题的动力.
I cannot use contains()
because I need to guard against substring matches. I'm using XPath 1.0 and an answer to a related question is the impetus for this question.
在 XPath 2.0 中,
In XPath 2.0,
(//h2[@id = ("foo", "bar", "baz")])[last()]
将选择文档中的最后一个 h2
元素,其 id
属性值为 foo
、bar
、或 baz
.
would select the last h2
element in the document with an id
attribute value of foo
, bar
, or baz
.
在 XPath 1.0 中,您将使用显式布尔 或
运算符:
In XPath 1.0, you'd use explicit boolean or
operators:
(//h2[@id="foo" or @id="bar" or @id="baz"])[last()]
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