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import string, re
ASCII_UPPER = string.ascii_uppercase
ASCII_LOWER = string.ascii_lowercase
STRICT_RFC1459_UPPER = ASCII_UPPER+r'\[]'
STRICT_RFC1459_LOWER = ASCII_LOWER+r'|{}'
RFC1459_UPPER = STRICT_RFC1459_UPPER+"^"
RFC1459_LOWER = STRICT_RFC1459_LOWER+"~"
def remove_colon(s):
if s.startswith(":"):
s = s[1:]
return s
# case mapping lowercase/uppcase logic
def _multi_replace(s, chars1, chars2):
for char1, char2 in zip(chars1, chars2):
s = s.replace(char1, char2)
return s
def lower(server, s):
if server.case_mapping == "ascii":
return _multi_replace(s, ASCII_UPPER, ASCII_LOWER)
elif server.case_mapping == "rfc1459":
return _multi_replace(s, RFC1459_UPPER, RFC1459_LOWER)
elif server.case_mapping == "strict-rfc1459":
return _multi_replace(s, STRICT_RFC1459_UPPER, STRICT_RFC1459_LOWER)
else:
raise ValueError("unknown casemapping '%s'" % server.case_mapping)
# compare a string while respecting case mapping
def equals(server, s1, s2):
return lower(server, s1) == lower(server, s2)
class IRCHostmask(object):
def __init__(self, nickname, username, hostname, hostmask):
self.nickname = nickname
self.username = username
self.hostname = hostname
self.hostmask = hostmask
def __repr__(self):
return "IRCHostmask(%s)" % self.__str__()
def __str__(self):
return self.hostmask
def seperate_hostmask(hostmask):
hostmask = remove_colon(hostmask)
nickname, _, username = hostmask.partition("!")
username, _, hostname = username.partition("@")
return IRCHostmask(nickname, username, hostname, hostmask)
class IRCLine(object):
def __init__(self, tags, prefix, command, args, arbitrary, last, server):
self.tags = tags
self.prefix = prefix
self.command = command
self.args = args
self.arbitrary = arbitrary
self.last = last
self.server = server
def parse_line(server, line):
tags = {}
prefix = None
command = None
if line[0] == "@":
tags_prefix, line = line[1:].split(" ", 1)
for tag in filter(None, tags_prefix.split(";")):
tag, _, value = tag.partition("=")
tags[tag] = value
line, _, arbitrary = line.partition(" :")
arbitrary = arbitrary or None
if line[0] == ":":
prefix, line = line[1:].split(" ", 1)
prefix = seperate_hostmask(prefix)
command, _, line = line.partition(" ")
args = line.split(" ")
last = arbitrary or args[-1]
return IRCLine(tags, prefix, command, args, arbitrary, last, server)
COLOR_WHITE, COLOR_BLACK, COLOR_BLUE, COLOR_GREEN = 0, 1, 2, 3
COLOR_RED, COLOR_BROWN, COLOR_PURPLE, COLOR_ORANGE = 4, 5, 6, 7
COLOR_YELLOW, COLOR_LIGHTGREEN, COLOR_CYAN, COLOR_LIGHTCYAN = (8, 9,
10, 11)
COLOR_LIGHTBLUE, COLOR_PINK, COLOR_GREY, COLOR_LIGHTGREY = (12, 13,
14, 15)
FONT_BOLD, FONT_ITALIC, FONT_UNDERLINE, FONT_INVERT = ("\x02", "\x1D",
"\x1F", "\x16")
FONT_COLOR, FONT_RESET = "\x03", "\x0F"
REGEX_COLOR = re.compile("%s\d\d(?:,\d\d)?" % FONT_COLOR)
def color(s, foreground, background=None):
foreground = str(foreground).zfill(2)
if background:
background = str(background).zfill(2)
return "%s%s%s%s%s" % (FONT_COLOR, foreground,
"" if not background else ",%s" % background, s, FONT_COLOR)
def bold(s):
return "%s%s%s" % (FONT_BOLD, s, FONT_BOLD)
def underline(s):
return "%s%s%s" % (FONT_UNDERLINE, s, FONT_UNDERLINE)
def strip_font(s):
s = s.replace(FONT_BOLD, "")
s = s.replace(FONT_ITALIC, "")
s = REGEX_COLOR.sub("", s)
s = s.replace(FONT_COLOR, "")
return s
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