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import io, typing
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)
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