regex - Multiline grep to find variable (constructor) definitions recursively -

how can create multiline grep across files inside directory prints out string in between both patterns including patterns themselves?

i tried use several variants, i'm kind of stuck regexp matching multiple lines.

grep -rpzo "var class = (.*) \};" ./ grep -rpzo "var class = function\(\{(.*)\};" ./ 

the grep command should files recursively , print out contents in between (and including) "var class = " , first "};" occurs after it, might after several line breaks. possible using grep (and not pcregrep)?

the first pattern definition of javascript function works fine, that's i'm stuck:

grep -rpzo "var class = function\((.*)\)\s\{" ./ 

an example definition of content should matched (to try out things more easily):

var class = function(data, game) {      var settings = lychee.extend({}, data);      this.foo = { x: 0, y: 0, z: 0 };       this.setfoo(settings.foo);      lychee.game.bar.call(this, settings);      settings = null;  }; 

or use gawk!

{    if( $0 ~ /\{/ )       cbo++;    if( $0 ~ /\}/ )       cbo--;    if( cbo == 1 && $0 ~ "^([[:space:]]?+)(.+)([[:space:]]+)\\{$" )       rec=1    if( rec == 1 )       buff = ( buff ? buff "\n" : "" ) $0    if( cbo == 0 )       rec=0 } end {       if( cbo == 0 )       print buff    else        print "dude funkey goes on ur input... " cbo " brackets left open!" } 

example: http://pastebin.com/ttchbpvm