Replacing all special characters with a Regular Expression

Question

I am trying to replace all German special characters in a Regular Expression. The Characters are ä ö ü ß

Answer 1

Regxr can help you write one. Try this:

RegExp: /\bäöüß\b/gi

pattern: \bäöüß\b

There are a number of ways to apply the actual replacement depending on the language or situation you are in.

Answer 2

I don't think you can do all 4 (or 7) replacements with a single regexp. It's fairly easy, thought, to do it with 4 (or 7) regexps.

Update

Additionally, as Mic has indicated, regexps can be part of the solution but need to be part of some kind of replacing mechanism. More input needed here.

Answer 3

/ä/ae/

If Carl is correct about what replacements you're talking about, that'll do; but regexs are not really required here, it can be done with a simple string function/methods.

Of course, for each character you'd need to write new regex.

If you wanted to replace them all with a single character, e.g., a question mark (?), you could use the following regex:

/[äöüß]/?/ig

Answer 4

If you want to replace each of those characters with a different character, you'll need four regexes:

/ä/X1/
/ö/X2/
/ü/X3/
/ß/X4/

where X1-X4 are the four replacement characters

OR, if you want to replace any occurrences of those characters with a single character:

/[äöüß]/X/

where X is the replacement character.

The exact regex syntax may different, depending on the programming language.