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<?php $pattern="\( ( (?>[^()]+) | (?R) )* \)"; $str="(def a (x) (+ 1 x))(print (a 1))"; preg_match_all($pattern,$str,$out); var_dump($out);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WRPKW
function name:  (null)
number of ops:  11
compiled vars:  !0 = $pattern, !1 = $str, !2 = $out
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%5C%28+%28+%28%3F%3E%5B%5E%28%29%5D%2B%29+%7C+%28%3FR%29+%29%2A+%5C%29'
    6     1        ASSIGN                                                   !1, '%28def+a+%28x%29+%28%2B+1+x%29%29%28print+%28a+1%29%29'
    9     2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
   12     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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