Current File : //opt/alt/python35/lib/python3.5/site-packages/pip/_vendor/toml/decoder.py
import datetime
import io
from os import linesep
import re
import sys
from pip._vendor.toml.tz import TomlTz
if sys.version_info < (3,):
_range = xrange # noqa: F821
else:
unicode = str
_range = range
basestring = str
unichr = chr
def _detect_pathlib_path(p):
if (3, 4) <= sys.version_info:
import pathlib
if isinstance(p, pathlib.PurePath):
return True
return False
def _ispath(p):
if isinstance(p, (bytes, basestring)):
return True
return _detect_pathlib_path(p)
def _getpath(p):
if (3, 6) <= sys.version_info:
import os
return os.fspath(p)
if _detect_pathlib_path(p):
return str(p)
return p
try:
FNFError = FileNotFoundError
except NameError:
FNFError = IOError
TIME_RE = re.compile(r"([0-9]{2}):([0-9]{2}):([0-9]{2})(\.([0-9]{3,6}))?")
class TomlDecodeError(ValueError):
"""Base toml Exception / Error."""
def __init__(self, msg, doc, pos):
lineno = doc.count('\n', 0, pos) + 1
colno = pos - doc.rfind('\n', 0, pos)
emsg = '{} (line {} column {} char {})'.format(msg, lineno, colno, pos)
ValueError.__init__(self, emsg)
self.msg = msg
self.doc = doc
self.pos = pos
self.lineno = lineno
self.colno = colno
# Matches a TOML number, which allows underscores for readability
_number_with_underscores = re.compile('([0-9])(_([0-9]))*')
class CommentValue(object):
def __init__(self, val, comment, beginline, _dict):
self.val = val
separator = "\n" if beginline else " "
self.comment = separator + comment
self._dict = _dict
def __getitem__(self, key):
return self.val[key]
def __setitem__(self, key, value):
self.val[key] = value
def dump(self, dump_value_func):
retstr = dump_value_func(self.val)
if isinstance(self.val, self._dict):
return self.comment + "\n" + unicode(retstr)
else:
return unicode(retstr) + self.comment
def _strictly_valid_num(n):
n = n.strip()
if not n:
return False
if n[0] == '_':
return False
if n[-1] == '_':
return False
if "_." in n or "._" in n:
return False
if len(n) == 1:
return True
if n[0] == '0' and n[1] not in ['.', 'o', 'b', 'x']:
return False
if n[0] == '+' or n[0] == '-':
n = n[1:]
if len(n) > 1 and n[0] == '0' and n[1] != '.':
return False
if '__' in n:
return False
return True
def load(f, _dict=dict, decoder=None):
"""Parses named file or files as toml and returns a dictionary
Args:
f: Path to the file to open, array of files to read into single dict
or a file descriptor
_dict: (optional) Specifies the class of the returned toml dictionary
decoder: The decoder to use
Returns:
Parsed toml file represented as a dictionary
Raises:
TypeError -- When f is invalid type
TomlDecodeError: Error while decoding toml
IOError / FileNotFoundError -- When an array with no valid (existing)
(Python 2 / Python 3) file paths is passed
"""
if _ispath(f):
with io.open(_getpath(f), encoding='utf-8') as ffile:
return loads(ffile.read(), _dict, decoder)
elif isinstance(f, list):
from os import path as op
from warnings import warn
if not [path for path in f if op.exists(path)]:
error_msg = "Load expects a list to contain filenames only."
error_msg += linesep
error_msg += ("The list needs to contain the path of at least one "
"existing file.")
raise FNFError(error_msg)
if decoder is None:
decoder = TomlDecoder(_dict)
d = decoder.get_empty_table()
for l in f: # noqa: E741
if op.exists(l):
d.update(load(l, _dict, decoder))
else:
warn("Non-existent filename in list with at least one valid "
"filename")
return d
else:
try:
return loads(f.read(), _dict, decoder)
except AttributeError:
raise TypeError("You can only load a file descriptor, filename or "
"list")
_groupname_re = re.compile(r'^[A-Za-z0-9_-]+$')
def loads(s, _dict=dict, decoder=None):
"""Parses string as toml
Args:
s: String to be parsed
_dict: (optional) Specifies the class of the returned toml dictionary
Returns:
Parsed toml file represented as a dictionary
Raises:
TypeError: When a non-string is passed
TomlDecodeError: Error while decoding toml
"""
implicitgroups = []
if decoder is None:
decoder = TomlDecoder(_dict)
retval = decoder.get_empty_table()
currentlevel = retval
if not isinstance(s, basestring):
raise TypeError("Expecting something like a string")
if not isinstance(s, unicode):
s = s.decode('utf8')
original = s
sl = list(s)
openarr = 0
openstring = False
openstrchar = ""
multilinestr = False
arrayoftables = False
beginline = True
keygroup = False
dottedkey = False
keyname = 0
key = ''
prev_key = ''
line_no = 1
for i, item in enumerate(sl):
if item == '\r' and sl[i + 1] == '\n':
sl[i] = ' '
continue
if keyname:
key += item
if item == '\n':
raise TomlDecodeError("Key name found without value."
" Reached end of line.", original, i)
if openstring:
if item == openstrchar:
oddbackslash = False
k = 1
while i >= k and sl[i - k] == '\\':
oddbackslash = not oddbackslash
k += 1
if not oddbackslash:
keyname = 2
openstring = False
openstrchar = ""
continue
elif keyname == 1:
if item.isspace():
keyname = 2
continue
elif item == '.':
dottedkey = True
continue
elif item.isalnum() or item == '_' or item == '-':
continue
elif (dottedkey and sl[i - 1] == '.' and
(item == '"' or item == "'")):
openstring = True
openstrchar = item
continue
elif keyname == 2:
if item.isspace():
if dottedkey:
nextitem = sl[i + 1]
if not nextitem.isspace() and nextitem != '.':
keyname = 1
continue
if item == '.':
dottedkey = True
nextitem = sl[i + 1]
if not nextitem.isspace() and nextitem != '.':
keyname = 1
continue
if item == '=':
keyname = 0
prev_key = key[:-1].rstrip()
key = ''
dottedkey = False
else:
raise TomlDecodeError("Found invalid character in key name: '" +
item + "'. Try quoting the key name.",
original, i)
if item == "'" and openstrchar != '"':
k = 1
try:
while sl[i - k] == "'":
k += 1
if k == 3:
break
except IndexError:
pass
if k == 3:
multilinestr = not multilinestr
openstring = multilinestr
else:
openstring = not openstring
if openstring:
openstrchar = "'"
else:
openstrchar = ""
if item == '"' and openstrchar != "'":
oddbackslash = False
k = 1
tripquote = False
try:
while sl[i - k] == '"':
k += 1
if k == 3:
tripquote = True
break
if k == 1 or (k == 3 and tripquote):
while sl[i - k] == '\\':
oddbackslash = not oddbackslash
k += 1
except IndexError:
pass
if not oddbackslash:
if tripquote:
multilinestr = not multilinestr
openstring = multilinestr
else:
openstring = not openstring
if openstring:
openstrchar = '"'
else:
openstrchar = ""
if item == '#' and (not openstring and not keygroup and
not arrayoftables):
j = i
comment = ""
try:
while sl[j] != '\n':
comment += s[j]
sl[j] = ' '
j += 1
except IndexError:
break
if not openarr:
decoder.preserve_comment(line_no, prev_key, comment, beginline)
if item == '[' and (not openstring and not keygroup and
not arrayoftables):
if beginline:
if len(sl) > i + 1 and sl[i + 1] == '[':
arrayoftables = True
else:
keygroup = True
else:
openarr += 1
if item == ']' and not openstring:
if keygroup:
keygroup = False
elif arrayoftables:
if sl[i - 1] == ']':
arrayoftables = False
else:
openarr -= 1
if item == '\n':
if openstring or multilinestr:
if not multilinestr:
raise TomlDecodeError("Unbalanced quotes", original, i)
if ((sl[i - 1] == "'" or sl[i - 1] == '"') and (
sl[i - 2] == sl[i - 1])):
sl[i] = sl[i - 1]
if sl[i - 3] == sl[i - 1]:
sl[i - 3] = ' '
elif openarr:
sl[i] = ' '
else:
beginline = True
line_no += 1
elif beginline and sl[i] != ' ' and sl[i] != '\t':
beginline = False
if not keygroup and not arrayoftables:
if sl[i] == '=':
raise TomlDecodeError("Found empty keyname. ", original, i)
keyname = 1
key += item
if keyname:
raise TomlDecodeError("Key name found without value."
" Reached end of file.", original, len(s))
if openstring: # reached EOF and have an unterminated string
raise TomlDecodeError("Unterminated string found."
" Reached end of file.", original, len(s))
s = ''.join(sl)
s = s.split('\n')
multikey = None
multilinestr = ""
multibackslash = False
pos = 0
for idx, line in enumerate(s):
if idx > 0:
pos += len(s[idx - 1]) + 1
decoder.embed_comments(idx, currentlevel)
if not multilinestr or multibackslash or '\n' not in multilinestr:
line = line.strip()
if line == "" and (not multikey or multibackslash):
continue
if multikey:
if multibackslash:
multilinestr += line
else:
multilinestr += line
multibackslash = False
closed = False
if multilinestr[0] == '[':
closed = line[-1] == ']'
elif len(line) > 2:
closed = (line[-1] == multilinestr[0] and
line[-2] == multilinestr[0] and
line[-3] == multilinestr[0])
if closed:
try:
value, vtype = decoder.load_value(multilinestr)
except ValueError as err:
raise TomlDecodeError(str(err), original, pos)
currentlevel[multikey] = value
multikey = None
multilinestr = ""
else:
k = len(multilinestr) - 1
while k > -1 and multilinestr[k] == '\\':
multibackslash = not multibackslash
k -= 1
if multibackslash:
multilinestr = multilinestr[:-1]
else:
multilinestr += "\n"
continue
if line[0] == '[':
arrayoftables = False
if len(line) == 1:
raise TomlDecodeError("Opening key group bracket on line by "
"itself.", original, pos)
if line[1] == '[':
arrayoftables = True
line = line[2:]
splitstr = ']]'
else:
line = line[1:]
splitstr = ']'
i = 1
quotesplits = decoder._get_split_on_quotes(line)
quoted = False
for quotesplit in quotesplits:
if not quoted and splitstr in quotesplit:
break
i += quotesplit.count(splitstr)
quoted = not quoted
line = line.split(splitstr, i)
if len(line) < i + 1 or line[-1].strip() != "":
raise TomlDecodeError("Key group not on a line by itself.",
original, pos)
groups = splitstr.join(line[:-1]).split('.')
i = 0
while i < len(groups):
groups[i] = groups[i].strip()
if len(groups[i]) > 0 and (groups[i][0] == '"' or
groups[i][0] == "'"):
groupstr = groups[i]
j = i + 1
while not groupstr[0] == groupstr[-1]:
j += 1
if j > len(groups) + 2:
raise TomlDecodeError("Invalid group name '" +
groupstr + "' Something " +
"went wrong.", original, pos)
groupstr = '.'.join(groups[i:j]).strip()
groups[i] = groupstr[1:-1]
groups[i + 1:j] = []
else:
if not _groupname_re.match(groups[i]):
raise TomlDecodeError("Invalid group name '" +
groups[i] + "'. Try quoting it.",
original, pos)
i += 1
currentlevel = retval
for i in _range(len(groups)):
group = groups[i]
if group == "":
raise TomlDecodeError("Can't have a keygroup with an empty "
"name", original, pos)
try:
currentlevel[group]
if i == len(groups) - 1:
if group in implicitgroups:
implicitgroups.remove(group)
if arrayoftables:
raise TomlDecodeError("An implicitly defined "
"table can't be an array",
original, pos)
elif arrayoftables:
currentlevel[group].append(decoder.get_empty_table()
)
else:
raise TomlDecodeError("What? " + group +
" already exists?" +
str(currentlevel),
original, pos)
except TypeError:
currentlevel = currentlevel[-1]
if group not in currentlevel:
currentlevel[group] = decoder.get_empty_table()
if i == len(groups) - 1 and arrayoftables:
currentlevel[group] = [decoder.get_empty_table()]
except KeyError:
if i != len(groups) - 1:
implicitgroups.append(group)
currentlevel[group] = decoder.get_empty_table()
if i == len(groups) - 1 and arrayoftables:
currentlevel[group] = [decoder.get_empty_table()]
currentlevel = currentlevel[group]
if arrayoftables:
try:
currentlevel = currentlevel[-1]
except KeyError:
pass
elif line[0] == "{":
if line[-1] != "}":
raise TomlDecodeError("Line breaks are not allowed in inline"
"objects", original, pos)
try:
decoder.load_inline_object(line, currentlevel, multikey,
multibackslash)
except ValueError as err:
raise TomlDecodeError(str(err), original, pos)
elif "=" in line:
try:
ret = decoder.load_line(line, currentlevel, multikey,
multibackslash)
except ValueError as err:
raise TomlDecodeError(str(err), original, pos)
if ret is not None:
multikey, multilinestr, multibackslash = ret
return retval
def _load_date(val):
microsecond = 0
tz = None
try:
if len(val) > 19:
if val[19] == '.':
if val[-1].upper() == 'Z':
subsecondval = val[20:-1]
tzval = "Z"
else:
subsecondvalandtz = val[20:]
if '+' in subsecondvalandtz:
splitpoint = subsecondvalandtz.index('+')
subsecondval = subsecondvalandtz[:splitpoint]
tzval = subsecondvalandtz[splitpoint:]
elif '-' in subsecondvalandtz:
splitpoint = subsecondvalandtz.index('-')
subsecondval = subsecondvalandtz[:splitpoint]
tzval = subsecondvalandtz[splitpoint:]
else:
tzval = None
subsecondval = subsecondvalandtz
if tzval is not None:
tz = TomlTz(tzval)
microsecond = int(int(subsecondval) *
(10 ** (6 - len(subsecondval))))
else:
tz = TomlTz(val[19:])
except ValueError:
tz = None
if "-" not in val[1:]:
return None
try:
if len(val) == 10:
d = datetime.date(
int(val[:4]), int(val[5:7]),
int(val[8:10]))
else:
d = datetime.datetime(
int(val[:4]), int(val[5:7]),
int(val[8:10]), int(val[11:13]),
int(val[14:16]), int(val[17:19]), microsecond, tz)
except ValueError:
return None
return d
def _load_unicode_escapes(v, hexbytes, prefix):
skip = False
i = len(v) - 1
while i > -1 and v[i] == '\\':
skip = not skip
i -= 1
for hx in hexbytes:
if skip:
skip = False
i = len(hx) - 1
while i > -1 and hx[i] == '\\':
skip = not skip
i -= 1
v += prefix
v += hx
continue
hxb = ""
i = 0
hxblen = 4
if prefix == "\\U":
hxblen = 8
hxb = ''.join(hx[i:i + hxblen]).lower()
if hxb.strip('0123456789abcdef'):
raise ValueError("Invalid escape sequence: " + hxb)
if hxb[0] == "d" and hxb[1].strip('01234567'):
raise ValueError("Invalid escape sequence: " + hxb +
". Only scalar unicode points are allowed.")
v += unichr(int(hxb, 16))
v += unicode(hx[len(hxb):])
return v
# Unescape TOML string values.
# content after the \
_escapes = ['0', 'b', 'f', 'n', 'r', 't', '"']
# What it should be replaced by
_escapedchars = ['\0', '\b', '\f', '\n', '\r', '\t', '\"']
# Used for substitution
_escape_to_escapedchars = dict(zip(_escapes, _escapedchars))
def _unescape(v):
"""Unescape characters in a TOML string."""
i = 0
backslash = False
while i < len(v):
if backslash:
backslash = False
if v[i] in _escapes:
v = v[:i - 1] + _escape_to_escapedchars[v[i]] + v[i + 1:]
elif v[i] == '\\':
v = v[:i - 1] + v[i:]
elif v[i] == 'u' or v[i] == 'U':
i += 1
else:
raise ValueError("Reserved escape sequence used")
continue
elif v[i] == '\\':
backslash = True
i += 1
return v
class InlineTableDict(object):
"""Sentinel subclass of dict for inline tables."""
class TomlDecoder(object):
def __init__(self, _dict=dict):
self._dict = _dict
def get_empty_table(self):
return self._dict()
def get_empty_inline_table(self):
class DynamicInlineTableDict(self._dict, InlineTableDict):
"""Concrete sentinel subclass for inline tables.
It is a subclass of _dict which is passed in dynamically at load
time
It is also a subclass of InlineTableDict
"""
return DynamicInlineTableDict()
def load_inline_object(self, line, currentlevel, multikey=False,
multibackslash=False):
candidate_groups = line[1:-1].split(",")
groups = []
if len(candidate_groups) == 1 and not candidate_groups[0].strip():
candidate_groups.pop()
while len(candidate_groups) > 0:
candidate_group = candidate_groups.pop(0)
try:
_, value = candidate_group.split('=', 1)
except ValueError:
raise ValueError("Invalid inline table encountered")
value = value.strip()
if ((value[0] == value[-1] and value[0] in ('"', "'")) or (
value[0] in '-0123456789' or
value in ('true', 'false') or
(value[0] == "[" and value[-1] == "]") or
(value[0] == '{' and value[-1] == '}'))):
groups.append(candidate_group)
elif len(candidate_groups) > 0:
candidate_groups[0] = (candidate_group + "," +
candidate_groups[0])
else:
raise ValueError("Invalid inline table value encountered")
for group in groups:
status = self.load_line(group, currentlevel, multikey,
multibackslash)
if status is not None:
break
def _get_split_on_quotes(self, line):
doublequotesplits = line.split('"')
quoted = False
quotesplits = []
if len(doublequotesplits) > 1 and "'" in doublequotesplits[0]:
singlequotesplits = doublequotesplits[0].split("'")
doublequotesplits = doublequotesplits[1:]
while len(singlequotesplits) % 2 == 0 and len(doublequotesplits):
singlequotesplits[-1] += '"' + doublequotesplits[0]
doublequotesplits = doublequotesplits[1:]
if "'" in singlequotesplits[-1]:
singlequotesplits = (singlequotesplits[:-1] +
singlequotesplits[-1].split("'"))
quotesplits += singlequotesplits
for doublequotesplit in doublequotesplits:
if quoted:
quotesplits.append(doublequotesplit)
else:
quotesplits += doublequotesplit.split("'")
quoted = not quoted
return quotesplits
def load_line(self, line, currentlevel, multikey, multibackslash):
i = 1
quotesplits = self._get_split_on_quotes(line)
quoted = False
for quotesplit in quotesplits:
if not quoted and '=' in quotesplit:
break
i += quotesplit.count('=')
quoted = not quoted
pair = line.split('=', i)
strictly_valid = _strictly_valid_num(pair[-1])
if _number_with_underscores.match(pair[-1]):
pair[-1] = pair[-1].replace('_', '')
while len(pair[-1]) and (pair[-1][0] != ' ' and pair[-1][0] != '\t' and
pair[-1][0] != "'" and pair[-1][0] != '"' and
pair[-1][0] != '[' and pair[-1][0] != '{' and
pair[-1].strip() != 'true' and
pair[-1].strip() != 'false'):
try:
float(pair[-1])
break
except ValueError:
pass
if _load_date(pair[-1]) is not None:
break
if TIME_RE.match(pair[-1]):
break
i += 1
prev_val = pair[-1]
pair = line.split('=', i)
if prev_val == pair[-1]:
raise ValueError("Invalid date or number")
if strictly_valid:
strictly_valid = _strictly_valid_num(pair[-1])
pair = ['='.join(pair[:-1]).strip(), pair[-1].strip()]
if '.' in pair[0]:
if '"' in pair[0] or "'" in pair[0]:
quotesplits = self._get_split_on_quotes(pair[0])
quoted = False
levels = []
for quotesplit in quotesplits:
if quoted:
levels.append(quotesplit)
else:
levels += [level.strip() for level in
quotesplit.split('.')]
quoted = not quoted
else:
levels = pair[0].split('.')
while levels[-1] == "":
levels = levels[:-1]
for level in levels[:-1]:
if level == "":
continue
if level not in currentlevel:
currentlevel[level] = self.get_empty_table()
currentlevel = currentlevel[level]
pair[0] = levels[-1].strip()
elif (pair[0][0] == '"' or pair[0][0] == "'") and \
(pair[0][-1] == pair[0][0]):
pair[0] = _unescape(pair[0][1:-1])
k, koffset = self._load_line_multiline_str(pair[1])
if k > -1:
while k > -1 and pair[1][k + koffset] == '\\':
multibackslash = not multibackslash
k -= 1
if multibackslash:
multilinestr = pair[1][:-1]
else:
multilinestr = pair[1] + "\n"
multikey = pair[0]
else:
value, vtype = self.load_value(pair[1], strictly_valid)
try:
currentlevel[pair[0]]
raise ValueError("Duplicate keys!")
except TypeError:
raise ValueError("Duplicate keys!")
except KeyError:
if multikey:
return multikey, multilinestr, multibackslash
else:
currentlevel[pair[0]] = value
def _load_line_multiline_str(self, p):
poffset = 0
if len(p) < 3:
return -1, poffset
if p[0] == '[' and (p.strip()[-1] != ']' and
self._load_array_isstrarray(p)):
newp = p[1:].strip().split(',')
while len(newp) > 1 and newp[-1][0] != '"' and newp[-1][0] != "'":
newp = newp[:-2] + [newp[-2] + ',' + newp[-1]]
newp = newp[-1]
poffset = len(p) - len(newp)
p = newp
if p[0] != '"' and p[0] != "'":
return -1, poffset
if p[1] != p[0] or p[2] != p[0]:
return -1, poffset
if len(p) > 5 and p[-1] == p[0] and p[-2] == p[0] and p[-3] == p[0]:
return -1, poffset
return len(p) - 1, poffset
def load_value(self, v, strictly_valid=True):
if not v:
raise ValueError("Empty value is invalid")
if v == 'true':
return (True, "bool")
elif v == 'false':
return (False, "bool")
elif v[0] == '"' or v[0] == "'":
quotechar = v[0]
testv = v[1:].split(quotechar)
triplequote = False
triplequotecount = 0
if len(testv) > 1 and testv[0] == '' and testv[1] == '':
testv = testv[2:]
triplequote = True
closed = False
for tv in testv:
if tv == '':
if triplequote:
triplequotecount += 1
else:
closed = True
else:
oddbackslash = False
try:
i = -1
j = tv[i]
while j == '\\':
oddbackslash = not oddbackslash
i -= 1
j = tv[i]
except IndexError:
pass
if not oddbackslash:
if closed:
raise ValueError("Found tokens after a closed " +
"string. Invalid TOML.")
else:
if not triplequote or triplequotecount > 1:
closed = True
else:
triplequotecount = 0
if quotechar == '"':
escapeseqs = v.split('\\')[1:]
backslash = False
for i in escapeseqs:
if i == '':
backslash = not backslash
else:
if i[0] not in _escapes and (i[0] != 'u' and
i[0] != 'U' and
not backslash):
raise ValueError("Reserved escape sequence used")
if backslash:
backslash = False
for prefix in ["\\u", "\\U"]:
if prefix in v:
hexbytes = v.split(prefix)
v = _load_unicode_escapes(hexbytes[0], hexbytes[1:],
prefix)
v = _unescape(v)
if len(v) > 1 and v[1] == quotechar and (len(v) < 3 or
v[1] == v[2]):
v = v[2:-2]
return (v[1:-1], "str")
elif v[0] == '[':
return (self.load_array(v), "array")
elif v[0] == '{':
inline_object = self.get_empty_inline_table()
self.load_inline_object(v, inline_object)
return (inline_object, "inline_object")
elif TIME_RE.match(v):
h, m, s, _, ms = TIME_RE.match(v).groups()
time = datetime.time(int(h), int(m), int(s), int(ms) if ms else 0)
return (time, "time")
else:
parsed_date = _load_date(v)
if parsed_date is not None:
return (parsed_date, "date")
if not strictly_valid:
raise ValueError("Weirdness with leading zeroes or "
"underscores in your number.")
itype = "int"
neg = False
if v[0] == '-':
neg = True
v = v[1:]
elif v[0] == '+':
v = v[1:]
v = v.replace('_', '')
lowerv = v.lower()
if '.' in v or ('x' not in v and ('e' in v or 'E' in v)):
if '.' in v and v.split('.', 1)[1] == '':
raise ValueError("This float is missing digits after "
"the point")
if v[0] not in '0123456789':
raise ValueError("This float doesn't have a leading "
"digit")
v = float(v)
itype = "float"
elif len(lowerv) == 3 and (lowerv == 'inf' or lowerv == 'nan'):
v = float(v)
itype = "float"
if itype == "int":
v = int(v, 0)
if neg:
return (0 - v, itype)
return (v, itype)
def bounded_string(self, s):
if len(s) == 0:
return True
if s[-1] != s[0]:
return False
i = -2
backslash = False
while len(s) + i > 0:
if s[i] == "\\":
backslash = not backslash
i -= 1
else:
break
return not backslash
def _load_array_isstrarray(self, a):
a = a[1:-1].strip()
if a != '' and (a[0] == '"' or a[0] == "'"):
return True
return False
def load_array(self, a):
atype = None
retval = []
a = a.strip()
if '[' not in a[1:-1] or "" != a[1:-1].split('[')[0].strip():
strarray = self._load_array_isstrarray(a)
if not a[1:-1].strip().startswith('{'):
a = a[1:-1].split(',')
else:
# a is an inline object, we must find the matching parenthesis
# to define groups
new_a = []
start_group_index = 1
end_group_index = 2
open_bracket_count = 1 if a[start_group_index] == '{' else 0
in_str = False
while end_group_index < len(a[1:]):
if a[end_group_index] == '"' or a[end_group_index] == "'":
if in_str:
backslash_index = end_group_index - 1
while (backslash_index > -1 and
a[backslash_index] == '\\'):
in_str = not in_str
backslash_index -= 1
in_str = not in_str
if not in_str and a[end_group_index] == '{':
open_bracket_count += 1
if in_str or a[end_group_index] != '}':
end_group_index += 1
continue
elif a[end_group_index] == '}' and open_bracket_count > 1:
open_bracket_count -= 1
end_group_index += 1
continue
# Increase end_group_index by 1 to get the closing bracket
end_group_index += 1
new_a.append(a[start_group_index:end_group_index])
# The next start index is at least after the closing
# bracket, a closing bracket can be followed by a comma
# since we are in an array.
start_group_index = end_group_index + 1
while (start_group_index < len(a[1:]) and
a[start_group_index] != '{'):
start_group_index += 1
end_group_index = start_group_index + 1
a = new_a
b = 0
if strarray:
while b < len(a) - 1:
ab = a[b].strip()
while (not self.bounded_string(ab) or
(len(ab) > 2 and
ab[0] == ab[1] == ab[2] and
ab[-2] != ab[0] and
ab[-3] != ab[0])):
a[b] = a[b] + ',' + a[b + 1]
ab = a[b].strip()
if b < len(a) - 2:
a = a[:b + 1] + a[b + 2:]
else:
a = a[:b + 1]
b += 1
else:
al = list(a[1:-1])
a = []
openarr = 0
j = 0
for i in _range(len(al)):
if al[i] == '[':
openarr += 1
elif al[i] == ']':
openarr -= 1
elif al[i] == ',' and not openarr:
a.append(''.join(al[j:i]))
j = i + 1
a.append(''.join(al[j:]))
for i in _range(len(a)):
a[i] = a[i].strip()
if a[i] != '':
nval, ntype = self.load_value(a[i])
if atype:
if ntype != atype:
raise ValueError("Not a homogeneous array")
else:
atype = ntype
retval.append(nval)
return retval
def preserve_comment(self, line_no, key, comment, beginline):
pass
def embed_comments(self, idx, currentlevel):
pass
class TomlPreserveCommentDecoder(TomlDecoder):
def __init__(self, _dict=dict):
self.saved_comments = {}
super(TomlPreserveCommentDecoder, self).__init__(_dict)
def preserve_comment(self, line_no, key, comment, beginline):
self.saved_comments[line_no] = (key, comment, beginline)
def embed_comments(self, idx, currentlevel):
if idx not in self.saved_comments:
return
key, comment, beginline = self.saved_comments[idx]
currentlevel[key] = CommentValue(currentlevel[key], comment, beginline,
self._dict)
Mini Shell