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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 Tag: tag[ stdin ]
# Style: List of literal text and types.
match Tag ["<person name=" Val1:id attr*">" item* "</person>"]
# Style: Literal text with embedded lists of types.
match Tag "<person name=[Val2:id attr*]>[item*]</person>"
print( ^Val1 '\n' )
print( ^Val2 '\n' )
##### IN #####
<person name=adrian hometown=kingston>
<t1 foo=bar2 e=f></t2>
</person>
##### EXP #####
adrian
adrian
|
