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##### LM #####
lex
ignore /space+/
literal '*', '(', ')'
token id /[a-zA-Z_]+/
end
def item
[id]
| ['(' item* ')']
def start
[item*]
parse Input: start[ stdin ]
match Input.tree [ItemList: item*]
for I: item* in repeat( ItemList )
print( ^I '\n' )
for I: item* in rev_repeat( ItemList )
print( ^I '\n' )
##### IN #####
a b ( c d ) e ( f g ) h i
##### EXP #####
a b ( c d ) e ( f g ) h i
b ( c d ) e ( f g ) h i
( c d ) e ( f g ) h i
e ( f g ) h i
( f g ) h i
h i
i
i
h i
( f g ) h i
e ( f g ) h i
( c d ) e ( f g ) h i
b ( c d ) e ( f g ) h i
a b ( c d ) e ( f g ) h i
|