Question

Input file text.txt:

foo()
{
}

buz()
{
}

Awk script.awk:

BEGIN {
    RS = "\n\n+";
    FS = "\n";
}
/[a-z]+\(\)\n/ {print "FUNCTION: " $1;}
{print "NOT FOUND: " $0;}

Running script:

awk -f script.awk text.txt

gives:

NOT FOUND: foo()
{
}
NOT FOUND: buz()
{
}

But I’ve expected to match both functions WITH newlines. How to do this?

Answer 1

You can try this:

BEGIN {
    RS = "";
    FS = "\n";
}
/[a-z]+\(\)/ {print "FUNCTION: " $1;}
!/[a-z]+\(\)/ {print "NOT FOUND: " $0;}

If you want to verify that there is nothing after the () you can do this:

$1~/[a-z]+()$/ {print “FUNCTION: ” $1;}

I don’t know why newline isn’t matched. Maybe someone would explain it.