sed 中的正则表达式用于在一个语句中进行多次替换 [英] Regular Expression in sed for multiple replacements in one statement

问题描述

我想清理一些输入并用可接受的输入替换几个字符，例如带有aa"的丹麦语å".

I want to sanitise some input and replace several characters with acceptable input, e.g. a Danish 'å' with 'aa'.

这可以使用多个语句轻松完成，例如/æ/ae/、/å/aa/、/ø/oe/，但由于工具限制，我希望能够在单个正则表达式中执行此操作.

This is easily done using several statements, e.g. /æ/ae/, /å/aa/, /ø/oe/, but due to tool limitations, I want to be able to do this in a single regular expression.

我可以捕获所有相关案例 (/[(æ)(ø)(å)(Æ)(Ø)(Å)]/) 但我替换不起作用，因为我希望它(但可能完全按照预期):

I can catch all of the relevant cases (/[(æ)(ø)(å)(Æ)(Ø)(Å)]/) but I replacement does not work as I want it to (but probably completely as intended):

 $ temp="RødgrØd med flæsk"

 $ echo $temp
 RødgrØd med flæsk

 $ echo $temp | sed 's/[(æ)(ø)(å)(Æ)(Ø)(Å)]/(ae)(oe)(aa)(Ae)(Oe)(Aa)/g'
 R(ae)(oe)(aa)(Ae)(Oe)(Aa)dgr(ae)(oe)(aa)(Ae)(Oe)(Aa)d med fl(ae)(oe)(aa)(Ae)(Oe)(Aa)sk

(第一行回声是为了表明它不是编码问题)

(first echo line is to show that it isn't an encoding issue)

顺便说一句，工具问题是我还想在 Sublime Text 2 片段.

Just as an aside, the tool issue is that I should like to also use the same regex in a Sublime Text 2 snippet.

有人能看出我的正则表达式有什么问题吗?

Anyone able to discern what is wrong with my regex statement?

提前致谢.

推荐答案

把它拆分成几个 sed 语句，用 ; 分隔:

Split it up into several sed statements, separated by ;:

sed 's/æ/ae/g;s/ø/oe/g;s/å/aa/g;s/Æ/Ae/g;s/Ø/Oe/g;s/Å/Aa/g'

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