Question

I need to extract tokens that are marked with curly brackets from a given string.

I have tried using Expresso to construct something that will parse…

------------------------------------------------------------- '{Token1}asdasasd{Token2}asd asdacscadase dfb db {Token3}' ------------------------------------------------------------- 

and produce ‘Token1’, ‘Token2’, ‘Token3’

I tried using..

------------------------------------------------------------- ({.+}) ------------------------------------------------------------- 

…but that seemed to match the entire expression.

Any thoughts?

Answer 1

Try

\{(.*?)\} 

 The \{ will escape the '{' (which has meaning in a RegEx). The \} likewise escapes the closing } backet. The .*? will take minimal data, instead of just .*  which is 'greedy' and takes everything it can. 

 If you have assurance that your tokens will (or need to)  be of a specific format, you can replace .* with an appropriate  character class. For example, in the likely case you  want only words, you can use (\w*) in place of the (.*?)  This has the advantage that closing } characters are not  part of the class being matched in the inner expression,  so you don't need the ? modifier).