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|
context si
lex
literal '!', 'a', ';\n'
token id /'a'|'b'/
{
input.push( make_token( trans_id_to input.pull(match_length) ) )
}
token super_id //
token foo //
ignore ws / [ \n\t]+ /
end
trans_id_to: int
def e1
[]
{
print( 'old_id = ' trans_id_to '\n' )
trans_id_to = typeid<foo>
print( 'new_id = ' trans_id_to '\n' )
}
def item1
msg: str
[ e1 '!' 'a' super_id super_id 'a']
{
lhs.msg = 'this is item1\n'
}
def e2
[]
{
print( 'old_id = ' trans_id_to '\n' )
trans_id_to = typeid<super_id>
print( 'new_id = ' trans_id_to '\n' )
}
def item2
msg: str
[ e2 '!' 'a' super_id super_id 'a']
{
lhs.msg = 'this is item2\n'
}
def start
[item1 ';\n']
| [item2 ';\n']
{
match lhs [Item2:item2 ';\n']
print( Item2.msg )
}
end si
cons SuperId: si[]
parse S: si::start(SuperId)[stdin]
print_xml( S.tree )
print( '\n' )
|
