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import decimal, io, typing
from . import datetime, errors
COMMENT_TYPES = ["#", "//"]
def hashflags(filename: str
) -> typing.List[typing.Tuple[str, typing.Optional[str]]]:
hashflags = [] # type: typing.List[typing.Tuple[str, typing.Optional[str]]]
with io.open(filename, mode="r", encoding="utf8") as f:
for line in f:
line = line.strip("\n")
found = False
for comment_type in COMMENT_TYPES:
if line.startswith(comment_type):
line = line.replace(comment_type, "", 1).lstrip()
found = True
break
if not found:
break
elif line.startswith("--"):
hashflag, sep, value = line[2:].partition(" ")
hashflags.append((hashflag, (value if sep else None)))
return hashflags
class Docstring(object):
def __init__(self, description: str, items: typing.Dict[str, str],
var_items: typing.Dict[str, typing.List[str]]):
self.description = description
self.items = items
self.var_items = var_items
def docstring(s: str) -> Docstring:
description = ""
last_item = None
last_item_no_space = False
items = {} # type: typing.Dict[str, str]
var_items = {} # type: typing.Dict[str, typing.List[str]]
if s:
for line in s.split("\n"):
line = line.strip()
if line:
if line[0] == ":":
key, _, value = line[1:].partition(": ")
last_item = key.lstrip("-")
last_item_no_space = key.startswith("-")
if key in var_items:
var_items[last_item].append(value)
elif key in items:
var_items[last_item] = [items.pop(last_item), value]
else:
items[last_item] = value
else:
if last_item:
if last_item_no_space:
items[last_item] += line
else:
items[last_item] += " %s" % line
else:
if description:
description += " "
description += line
return Docstring(description, items, var_items)
def keyvalue(s: str, delimiter: str=" "
) -> typing.Dict[str, typing.Optional[str]]:
items = {} # type: typing.Dict[str, typing.Optional[str]]
pairs = s.split(delimiter)
for pair in filter(None, pairs):
key, sep, value = pair.partition("=")
if sep:
items[key] = value
else:
items[key] = None
return items
def try_int(s: str) -> typing.Optional[int]:
try:
return int(s)
except ValueError:
return None
def line_normalise(s: str) -> str:
lines = list(filter(None, [line.strip() for line in s.split("\n")]))
return " ".join(line.replace(" ", " ") for line in lines)
def parse_number(s: str) -> str:
try:
decimal.Decimal(s)
return s
except:
pass
unit = s[-1].lower()
number_str = s[:-1]
try:
number = decimal.Decimal(number_str)
except:
raise ValueError("Invalid format '%s' passed to parse_number" %
number_str)
if unit == "k":
number *= decimal.Decimal("1_000")
elif unit == "m":
number *= decimal.Decimal("1_000_000")
elif unit == "b":
number *= decimal.Decimal("1_000_000_000")
else:
raise ValueError("Unknown unit '%s' given to parse_number" % unit)
return str(number)
def timed_args(args, min_args):
if args and args[0][0] == "+":
if len(args[1:]) < min_args:
raise errors.EventError("Not enough arguments")
time = datetime.from_pretty_time(args[0][1:])
if time == None:
raise errors.EventError("Invalid timeframe")
return time, args[1:]
return None, args
def format_tokens(s: str, names: typing.List[str], sigil: str="$"
) -> typing.List[typing.Tuple[int, str]]:
names = names.copy()
names.sort()
names.reverse()
i = 0
max = len(s)-1
sigil_found = False
tokens: typing.List[typing.Tuple[int, str]] = []
while i < max:
if s[i] == sigil:
i += 1
if not s[i] == sigil:
for name in names:
if len(name) <= (len(s)-i) and s[i:i+len(name)] == name:
tokens.append((i-1, "%s%s" % (sigil, name)))
i += len(name)
break
else:
tokens.append((i, "$"))
i += 1
return tokens
def format_token_replace(s: str, vars: typing.Dict[str, str],
sigil: str="$") -> str:
vars = vars.copy()
vars.update({"": ""})
tokens = format_tokens(s, list(vars.keys()), sigil)
tokens.sort(key=lambda x: x[0])
tokens.reverse()
for i, token in tokens:
s = s[:i] + vars[token.replace(sigil, "", 1)] + s[i+len(token):]
return s
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