用于替换 xml 属性的正则表达式 [英] regular expression to replace an xml attribute

问题描述

我有一个如下形式的 xml 文件:

<property name="foo" value="this is a long value">stuff</property>

有很多属性，但我想匹配名称为 foo 的属性，然后将其 value 属性替换为其他属性:

我正在考虑编写一个正则表达式来匹配foo"到标签末尾(>")之后的所有内容并替换它，但我似乎无法获得正确的语法.

如果有帮助的话，我正在尝试使用 sed 来执行此操作.

解决方案

/property name=\"foo\" value=\"([^\"]*)\"/

然后只需将第一个子匹配替换为您希望的新值.

I have an xml file of the form:

<property name="foo" value="this is a long value">stuff</property>

There are many properties but I want to match the one with name foo and then replace its value attribute with something else as so:

<property name="foo" value="yet another long value">stuff</property>

I was thinking to write a regular expression to match everything after "foo" to the end of the tag ( ">" ) and replace that, but I can't seem to get the syntax right.

I'm trying to do this using sed, if that's any help.

解决方案

/property name=\"foo\" value=\"([^\"]*)\"/

Then just replace the first submatch with the new value of your wishing.

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