[pcre-dev] How to mimic --only-matching inside of regex

Hi,

I have a problem where I need to print on STDOUT only certain parts of the string matched by a regex.

I am able to achieve that if I use the --only-matching (-o) option but not via a regex, it would be really great if you can tell me if there is a way or not. I cannot use the -o option as pcregrep is inside of another program where it only accepts the regex.

Here is what I am looking for

STRING

#ABC_XYZ foo.c(999) @ 19990 ns: foobar [foo] DATA packet mismatch..... Data on wire is 0000000000000000000000000000063b0000000000000000000000000000063b0000000000000000000000000000063b0000000000000000000000000000063b00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

I want to print out just the line

#ABC_XYZ foo.c(999) @ 19990 ns: foobar [foo] DATA packet mismatch.....

I am able to do this if I do the below

% pcregrep -o -e "#\s+ABC_XYZ.*\.\.\.\." file.txt
#ABC_XYZ foo.c(999) @ 19990 ns: foobar [foo] DATA packet mismatch.....

But need a way to do the above without using '-o' option

I went through the documentation and did quite a few experiments but could not find a method.

Your help is greatly appreciated.

Thanks
Raga