Shell Programming and Scripting

So the beef is the B after the closing brace, and you want that lifted up there before the opening brace? Or what?

Code:

perl -0777 -pe 's/(\s*\{.*?\})\s*(\S+);/\2\1;/sg'

Thats right.
I have to check before and after the { } and combine A and B (and leave rest of stuff the file intact)

Thanks a lot for your perl script, it works! I will try to make it work with actual header file

Good Morning ERA,
Your perl magic works fine. It needs a bit of tweaking in my actual test case
perl -0777 -pe 's/(\s*\{.*?\})\s*(\S*);/\2\1;/sg'

Also, irrespective of
struct A{
...
}B;
or enum A{
...
}B;
It moves B up. Could you please help me with making it work for specifically struct scenario. Thanks

Tighten up the regular expression for the opening brace. The \s* means whitespace so you'd want the "struct" keyword there in front of that.

perl -0777 -pe 's/struct(\s*\{.*?\})\s*(\S*);/struct \2\1;/sg' $file worked only for strtuct leaving enum intact

You can lift the struct inside the parens to reduce the duplication, too.

Thanks era. Good tips and Great help.

One more twist, say
if A exists(non-null) don't move B, just remove it.

Logic:
if A = "";
than
move B before {
else
delete B

Reason for doing this is to handle scnario like
struct A{
...
}A_T;
Your earlier conversion script is able to handle
typedef struct{
...
}A;
and
struct A{
...
};
output has to be
struct A{
...
};