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|
namespace r1
{
lex r1
{
literal '!', 'a', 'b'
ignore /[ \n\t]+/
}
def line [ '!' 'a' 'b' 'b' 'a']
}
namespace r2
{
lex r2
{
literal '!'
token id /[a-zA-Z_]+/
ignore /[ \n\t]+/
}
def line [ '!' id ]
}
def item
[r1::line]
| [r2::line]
def btscan
[item*]
btscan P = parse btscan( stdin )
match P ~!abb !abba !aab
print_xml(P)
|
