$grammar = q(
	   file: section(s) 
	   section: header assign(s?)
	   header: '[' /\w+/ ']'
	   assign: pair comment(?)
	   pair:   /\w+/ '=' /\w+/
	   comment: /[\;\#]/ /\w+/
};

##</code><code>##

header: [ Section1 ]
pair: key1 = value1
comment: # Comment
assign: 1 ARRAY(0x1d5e758)
pair: key2 = value2
comment: ; Comment
assign: 1 ARRAY(0x2014078)
pair: key3 = value3
assign: 1 ARRAY(0x1d5e818)
section: 1 ARRAY(0x1d5e74c)
header: [ Section2 ]
pair: key4 = value4
assign: 1 ARRAY(0x20140cc)
pair: key5 = value5
assign: 1 ARRAY(0x1d5e830)
section: 1 ARRAY(0x2014090)
file: ARRAY(0x2014084)