Removing part of json string with using REGEX

Question

My json string structure as below

...
}],"twitter":[{"id": .... blaa"}]}
...

I am trying to remove this part as below

Regex.Replace(_VarJson, string.Format("{0}.*?{1}", "\"twitter\":[{", "\"}]"), string.Empty)

But nothing removes. Where is my wrong?

Thank you in advance

Don't do Json processing with a regex, any cascading representation should be processed with context-free grammars, or use a JSON library. — willeM_ Van Onsem
– willeM_ Van Onsem, Commented Apr 6, 2015 at 10:56

Andrey Korneyev · Accepted Answer · 2015-04-06 11:03:18Z

1

In your regex pattern [{}] symbols should be escaped with \ symbol since they are reserved regex symbols ([] stands for charactrers group and {} stands for repetitions count).

So your replacement could be done as

_VarJson = Regex.Replace(_VarJson, 
    string.Format("{0}.*?{1}", 
    "\"twitter\":\\[\\{", "\"\\}\\]"), 
    string.Empty);

But I strongly agreed with opinion of @CommuSoft posted in comments - it's better to use some JSON library to parse your source JSON, then remove all you need from object model and write back JSON as text if needed.

edited Apr 6, 2015 at 11:03

answered Apr 6, 2015 at 10:55

Andrey Korneyev

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