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##### LM #####
lex
token id /[a-zA-Z_][a-zA-Z0-9_]*/
literal `= `< `> `/
ignore /[ \t\n\r\v]+/
end
def attr
[id `= id]
def open_tag
[`< id attr* `>]
def close_tag
[`< `/ id `>]
def tag
[open_tag item* close_tag]
def item
[tag]
| [id]
parse PersonTag: tag[ stdin ]
match PersonTag
["<person name=" Val:id attr*">" item* "</person>"]
NameTag1: tag = construct tag
["<name type=person>" ^Val "</name>"]
NameTag2: tag = construct tag
"<name type=person>[^Val]</name>"
print( NameTag1 '\n' )
print( NameTag2 '\n' )
##### IN #####
<person name=adrian hometown=kingston>
<t1 foo=bar2 e=f></t2>
</person>
##### EXP #####
<name type=person>adrian</name>
<name type=person>adrian</name>
|
