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|
##### LM #####
#
# Regular Definitions
#
rl rl_ws /[.+ \t\n\r\v]+/
rl rl_id /[a-zA-Z_][a-zA-Z0-9_]*/
#
# Tokens
#
lex
literal '=', '<', '>', '/'
# Ignore whitespace.
ignore /rl_ws/
# Open and close id
token id /rl_id/
end
#
# Productions
#
def attr [id '=' id]
def attr_list
[attr_list attr]
| []
def open_tag
['<' id attr_list '>']
def close_tag
['<' '/' id '>']
def tag
[open_tag item_list close_tag]
def item_list
[item_list tag]
| []
parse Attrs: attr_list[ stdin ]
print( %Attrs '\n' )
construct IL: item_list
["<wrapper .[Attrs]. ></wrapper>"]
print( IL '\n' )
##### IN #####
+ foo = asdf +
##### EXP #####
+ foo = asdf +
<wrapper .+ foo = asdf +
. ></wrapper>
|
