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|
import rply
__lg = rply.LexerGenerator()
# Add takes a rule name, and a regular expression that defines the rule.
__lg.add("OWNER", r'<[a-zA-Z0-9_.+-]+@[a-zA-Z0-9._-]+>')
__lg.add("VAL", r'[\'`"][a-zA-Z0-9@_+.<>() -]+[\'`"]')
__lg.add("VAR", r'[a-zA-Z0-9_<>-]+[:]?')
__lg.ignore(r"\s+")
__lg.ignore(r'[{}=]+')
lexer = __lg.build()
__pg = rply.ParserGenerator(['OWNER', 'VAL', 'VAR'],
cache_id='wlp_parser')
"""
$accept ::= block $end
block ::= blockstatement
| block blockstatement
blockstatement ::= owner '{' commandline '}'
commandline ::= command
| commandline command
command ::= varpart '=' valpart
owner ::= OWNERID
varpart ::= VARID
valpart ::= VALID
"""
@__pg.production('main : block')
def main(p):
return p[0]
@__pg.production('block : blockstatement')
def block(p):
return p
@__pg.production('block : block blockstatement')
def block_blockstatement(p):
p[0].append(p[1])
return p[0]
@__pg.production('blockstatement : OWNER commandline')
def blockstatement(p):
return [p[0], p[1]]
@__pg.production('commandline : command')
def commandline(p):
return p
@__pg.production('commandline : commandline command')
def commandline_command(p):
p[0].append(p[1])
return p[0]
@__pg.production('command : VAR VAL')
def command(p):
return p
parser = __pg.build()
|
