def create_parser():
DOTS = p.Suppress("...")
NSTAT_PREFIX = p.Suppress("Status of node")
PERM_PREFIX = p.Suppress("Permissions on")
nodename = p.Word(p.alphanums + '\'_-@')
block_nstat = p.Group(NSTAT_PREFIX + nodename + DOTS + erlblock_parser())
nstat = p.Dict(p.OneOrMore(p.Suppress(p.SkipTo(NSTAT_PREFIX)) +
block_nstat)).setResultsName('nstat')
perm = p.Suppress(p.SkipTo(PERM_PREFIX)) + perm_parser().setResultsName('perm')
return nstat + perm
def perm_parser():
COLON = p.Suppress(":")
WHITE = p.Suppress(p.White())
vhostname = p.Word(p.alphanums + '_-/')
username = p.Word(p.alphanums + '_-')
conf = p.Word(p.alphanums + '.*#')
perm_vhost = p.Suppress("Permissions on") + vhostname + COLON
ucwr = p.Suppress("user" + WHITE + "configure" + WHITE + "write" + WHITE + "read")
perm_line = p.Group(username + 3 * (WHITE + conf))
perm_con = p.Optional(ucwr + p.Dict(p.OneOrMore(perm_line)))
perm_block = p.Group(perm_vhost + perm_con)
perm = p.Dict(p.OneOrMore(perm_block))
return perm
def erlblock_parser():
COMMA = p.Suppress(',')
LBRACE, RBRACE = map(p.Suppress, "{}")
LBRACKET, RBRACKET = map(p.Suppress, "[]")
key = p.Word(p.alphas + '_')
value_tnum = p.Word(p.nums + '.')
value_tword = p.Word(p.alphanums + '/"-[]:.()')
value_tstr = p.OneOrMore(value_tword)
value_tdoustrs = value_tstr + COMMA + value_tstr
value_tnumstr = value_tnum + value_tstr
value = value_tdoustrs | value_tnumstr | value_tstr | value_tnum
attr = LBRACE + p.Group(key + COMMA + value) + RBRACE
attr_list = p.Dict(p.ZeroOrMore(attr + COMMA) + p.ZeroOrMore(attr))
block = LBRACKET + attr_list + RBRACKET
value_plus = block | attr | value
attr = LBRACE + p.Group(key + COMMA + value_plus) + RBRACE
attr_list = p.Dict(p.OneOrMore(attr + COMMA) + p.OneOrMore(attr))
block = LBRACKET + attr_list + RBRACKET
return block