*info* command-line was: `./regex'
*info* REGEX_PARSER_DEBUG environment variable holds `stdout'
*info* REGEX_INPUT_FILE environment variable holds `regex.txt'

*info* parsing starts on `regex.txt' @ 13:0

step#  pos.  action  lexme  production        stack (top is left)
=====  ====  ======  =====  ================  =======================  
1      13:0  start   [a]    PROD_REGEX        [r, $]
2      13:0  push    [a]    PROD_BRANCH       [b, r', $]
3      13:0  push    [a]    PROD_PIECE        [p, b', r', $]
4      13:0  push    [a]    PROD_LEFT_ANCHOR  [la, a, p', b', r', $]
5      13:0  push    [a]    PROD_EPSILON      [eps, a, p', b', r', $]
6      13:0  push    [a]    PROD_ATOM         [a, p', b', r', $]
7      13:0  pop     [a]                      [id, p', b', r', $]
8      13:1  push    [|]    PROD_PIECE_P      [p', b', r', $]
9      13:1  push    [|]    PROD_EPSILON      [eps, b', r', $]
10     13:1  push    [|]    PROD_BRANCH_P     [b', r', $]
11     13:1  push    [|]    PROD_EPSILON      [eps, r', $]
12     13:1  push    [|]    PROD_REGEX_P      [r', $]
13     13:1  pop     [|]                      [|, r, $]
14     13:2  push    [b]    PROD_REGEX        [r, $]
15     13:2  push    [b]    PROD_BRANCH       [b, r', $]
16     13:2  push    [b]    PROD_PIECE        [p, b', r', $]
17     13:2  push    [b]    PROD_LEFT_ANCHOR  [la, a, p', b', r', $]
18     13:2  push    [b]    PROD_EPSILON      [eps, a, p', b', r', $]
19     13:2  push    [b]    PROD_ATOM         [a, p', b', r', $]
20     13:2  pop     [b]                      [id, p', b', r', $]
21     13:3  push    [*]    PROD_PIECE_P      [p', b', r', $]
22     13:3  push    [*]    PROD_FACTOR       [f, b', r', $]
23     13:3  pop     [*]                      [*, b', r', $]
24     14:0  push    [$]    PROD_BRANCH_P     [b', r', $]
25     14:0  push    [$]    PROD_EPSILON      [eps, r', $]
26     14:0  push    [$]    PROD_REGEX_P      [r', $]
27     14:0  push    [$]    PROD_EPSILON      [eps, $]
28     13:3  end     [$]                      [$]

*info* elapsed time: 0 milliseconds (480508 nanoseconds)

*info* parse-tree:

                r
        b               r'
    p       b'       |     r       
la  a  p'   $           b     r'
$   a  $             p    b'  $    
      la  a  p'   $  
               $  b  f  
                     *  

*info* syntax-tree:     [*, b, |, a, ]