Indent code inside brackets with regex

Question

I would like to indent a code string with tabulation. The simple rule is that I must append a tabulation after each line feed inside braces "{}".

My trouble is for nested braces... here I need many tabulation to be exactly the number of nested braces.

Do you think it is possible to do with a regex replace?

Bart Kiers · Accepted Answer · 2012-10-22 13:07:57Z

3

It is impossible with to be done with regex [at least with standard regex, which stand for regular expressions for regular languages] because the language you are describing is irregular!

It is even impossible to know if there are the same number of { as } in a given string with regular language.

We can show that if this language is regular, using homomorphism we can create the language L={aⁿbⁿ} which is a known irregular language.

edited Oct 22, 2012 at 13:07

Bart Kiers

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answered Jan 25, 2012 at 16:49

amit

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