1058 lines
38 KiB
Python
1058 lines
38 KiB
Python
import datetime
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import io
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from os import linesep
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import re
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import sys
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from toml.tz import TomlTz
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if sys.version_info < (3,):
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_range = xrange # noqa: F821
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else:
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unicode = str
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_range = range
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basestring = str
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unichr = chr
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def _detect_pathlib_path(p):
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if (3, 4) <= sys.version_info:
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import pathlib
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if isinstance(p, pathlib.PurePath):
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return True
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return False
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def _ispath(p):
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if isinstance(p, (bytes, basestring)):
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return True
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return _detect_pathlib_path(p)
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def _getpath(p):
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if (3, 6) <= sys.version_info:
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import os
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return os.fspath(p)
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if _detect_pathlib_path(p):
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return str(p)
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return p
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try:
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FNFError = FileNotFoundError
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except NameError:
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FNFError = IOError
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TIME_RE = re.compile(r"([0-9]{2}):([0-9]{2}):([0-9]{2})(\.([0-9]{3,6}))?")
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class TomlDecodeError(ValueError):
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"""Base toml Exception / Error."""
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def __init__(self, msg, doc, pos):
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lineno = doc.count('\n', 0, pos) + 1
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colno = pos - doc.rfind('\n', 0, pos)
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emsg = '{} (line {} column {} char {})'.format(msg, lineno, colno, pos)
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ValueError.__init__(self, emsg)
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self.msg = msg
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self.doc = doc
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self.pos = pos
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self.lineno = lineno
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self.colno = colno
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# Matches a TOML number, which allows underscores for readability
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_number_with_underscores = re.compile('([0-9])(_([0-9]))*')
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class CommentValue(object):
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def __init__(self, val, comment, beginline, _dict):
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self.val = val
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separator = "\n" if beginline else " "
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self.comment = separator + comment
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self._dict = _dict
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def __getitem__(self, key):
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return self.val[key]
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def __setitem__(self, key, value):
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self.val[key] = value
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def dump(self, dump_value_func):
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retstr = dump_value_func(self.val)
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if isinstance(self.val, self._dict):
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return self.comment + "\n" + unicode(retstr)
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else:
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return unicode(retstr) + self.comment
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def _strictly_valid_num(n):
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n = n.strip()
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if not n:
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return False
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if n[0] == '_':
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return False
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if n[-1] == '_':
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return False
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if "_." in n or "._" in n:
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return False
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if len(n) == 1:
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return True
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if n[0] == '0' and n[1] not in ['.', 'o', 'b', 'x']:
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return False
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if n[0] == '+' or n[0] == '-':
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n = n[1:]
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if len(n) > 1 and n[0] == '0' and n[1] != '.':
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return False
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if '__' in n:
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return False
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return True
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def load(f, _dict=dict, decoder=None):
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"""Parses named file or files as toml and returns a dictionary
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Args:
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f: Path to the file to open, array of files to read into single dict
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or a file descriptor
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_dict: (optional) Specifies the class of the returned toml dictionary
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decoder: The decoder to use
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Returns:
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Parsed toml file represented as a dictionary
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Raises:
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TypeError -- When f is invalid type
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TomlDecodeError: Error while decoding toml
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IOError / FileNotFoundError -- When an array with no valid (existing)
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(Python 2 / Python 3) file paths is passed
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"""
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if _ispath(f):
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with io.open(_getpath(f), encoding='utf-8') as ffile:
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return loads(ffile.read(), _dict, decoder)
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elif isinstance(f, list):
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from os import path as op
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from warnings import warn
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if not [path for path in f if op.exists(path)]:
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error_msg = "Load expects a list to contain filenames only."
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error_msg += linesep
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error_msg += ("The list needs to contain the path of at least one "
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"existing file.")
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raise FNFError(error_msg)
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if decoder is None:
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decoder = TomlDecoder(_dict)
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d = decoder.get_empty_table()
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for l in f: # noqa: E741
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if op.exists(l):
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d.update(load(l, _dict, decoder))
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else:
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warn("Non-existent filename in list with at least one valid "
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"filename")
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return d
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else:
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try:
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return loads(f.read(), _dict, decoder)
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except AttributeError:
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raise TypeError("You can only load a file descriptor, filename or "
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"list")
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_groupname_re = re.compile(r'^[A-Za-z0-9_-]+$')
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def loads(s, _dict=dict, decoder=None):
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"""Parses string as toml
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Args:
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s: String to be parsed
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_dict: (optional) Specifies the class of the returned toml dictionary
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Returns:
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Parsed toml file represented as a dictionary
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Raises:
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TypeError: When a non-string is passed
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TomlDecodeError: Error while decoding toml
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"""
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implicitgroups = []
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if decoder is None:
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decoder = TomlDecoder(_dict)
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retval = decoder.get_empty_table()
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currentlevel = retval
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if not isinstance(s, basestring):
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raise TypeError("Expecting something like a string")
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if not isinstance(s, unicode):
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s = s.decode('utf8')
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original = s
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sl = list(s)
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openarr = 0
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openstring = False
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openstrchar = ""
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multilinestr = False
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arrayoftables = False
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beginline = True
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keygroup = False
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dottedkey = False
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keyname = 0
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key = ''
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prev_key = ''
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line_no = 1
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for i, item in enumerate(sl):
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if item == '\r' and sl[i + 1] == '\n':
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sl[i] = ' '
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continue
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if keyname:
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key += item
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if item == '\n':
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raise TomlDecodeError("Key name found without value."
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" Reached end of line.", original, i)
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if openstring:
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if item == openstrchar:
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oddbackslash = False
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k = 1
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while i >= k and sl[i - k] == '\\':
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oddbackslash = not oddbackslash
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k += 1
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if not oddbackslash:
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keyname = 2
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openstring = False
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openstrchar = ""
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continue
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elif keyname == 1:
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if item.isspace():
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keyname = 2
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continue
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elif item == '.':
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dottedkey = True
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continue
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elif item.isalnum() or item == '_' or item == '-':
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continue
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elif (dottedkey and sl[i - 1] == '.' and
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(item == '"' or item == "'")):
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openstring = True
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openstrchar = item
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continue
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elif keyname == 2:
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if item.isspace():
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if dottedkey:
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nextitem = sl[i + 1]
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if not nextitem.isspace() and nextitem != '.':
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keyname = 1
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continue
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if item == '.':
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dottedkey = True
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nextitem = sl[i + 1]
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if not nextitem.isspace() and nextitem != '.':
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keyname = 1
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continue
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if item == '=':
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keyname = 0
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prev_key = key[:-1].rstrip()
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key = ''
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dottedkey = False
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else:
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raise TomlDecodeError("Found invalid character in key name: '" +
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item + "'. Try quoting the key name.",
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original, i)
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if item == "'" and openstrchar != '"':
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k = 1
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try:
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while sl[i - k] == "'":
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k += 1
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if k == 3:
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break
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except IndexError:
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pass
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if k == 3:
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multilinestr = not multilinestr
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openstring = multilinestr
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else:
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openstring = not openstring
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if openstring:
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openstrchar = "'"
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else:
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openstrchar = ""
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if item == '"' and openstrchar != "'":
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oddbackslash = False
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k = 1
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tripquote = False
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try:
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while sl[i - k] == '"':
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k += 1
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if k == 3:
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tripquote = True
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break
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if k == 1 or (k == 3 and tripquote):
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while sl[i - k] == '\\':
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oddbackslash = not oddbackslash
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k += 1
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except IndexError:
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pass
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if not oddbackslash:
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if tripquote:
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multilinestr = not multilinestr
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openstring = multilinestr
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else:
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openstring = not openstring
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if openstring:
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openstrchar = '"'
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else:
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openstrchar = ""
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if item == '#' and (not openstring and not keygroup and
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not arrayoftables):
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j = i
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comment = ""
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try:
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while sl[j] != '\n':
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comment += s[j]
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sl[j] = ' '
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j += 1
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except IndexError:
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break
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if not openarr:
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decoder.preserve_comment(line_no, prev_key, comment, beginline)
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if item == '[' and (not openstring and not keygroup and
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not arrayoftables):
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if beginline:
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if len(sl) > i + 1 and sl[i + 1] == '[':
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arrayoftables = True
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else:
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keygroup = True
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else:
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openarr += 1
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if item == ']' and not openstring:
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if keygroup:
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keygroup = False
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elif arrayoftables:
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if sl[i - 1] == ']':
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arrayoftables = False
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else:
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openarr -= 1
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if item == '\n':
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if openstring or multilinestr:
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if not multilinestr:
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raise TomlDecodeError("Unbalanced quotes", original, i)
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if ((sl[i - 1] == "'" or sl[i - 1] == '"') and (
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sl[i - 2] == sl[i - 1])):
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sl[i] = sl[i - 1]
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if sl[i - 3] == sl[i - 1]:
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sl[i - 3] = ' '
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elif openarr:
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sl[i] = ' '
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else:
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beginline = True
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line_no += 1
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elif beginline and sl[i] != ' ' and sl[i] != '\t':
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beginline = False
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if not keygroup and not arrayoftables:
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if sl[i] == '=':
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raise TomlDecodeError("Found empty keyname. ", original, i)
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keyname = 1
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key += item
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if keyname:
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raise TomlDecodeError("Key name found without value."
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" Reached end of file.", original, len(s))
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if openstring: # reached EOF and have an unterminated string
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raise TomlDecodeError("Unterminated string found."
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" Reached end of file.", original, len(s))
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s = ''.join(sl)
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s = s.split('\n')
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multikey = None
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multilinestr = ""
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multibackslash = False
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pos = 0
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for idx, line in enumerate(s):
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if idx > 0:
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pos += len(s[idx - 1]) + 1
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decoder.embed_comments(idx, currentlevel)
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if not multilinestr or multibackslash or '\n' not in multilinestr:
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line = line.strip()
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if line == "" and (not multikey or multibackslash):
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continue
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if multikey:
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if multibackslash:
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multilinestr += line
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else:
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multilinestr += line
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multibackslash = False
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closed = False
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if multilinestr[0] == '[':
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closed = line[-1] == ']'
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elif len(line) > 2:
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closed = (line[-1] == multilinestr[0] and
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line[-2] == multilinestr[0] and
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line[-3] == multilinestr[0])
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if closed:
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try:
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value, vtype = decoder.load_value(multilinestr)
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except ValueError as err:
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raise TomlDecodeError(str(err), original, pos)
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currentlevel[multikey] = value
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multikey = None
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multilinestr = ""
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else:
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k = len(multilinestr) - 1
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while k > -1 and multilinestr[k] == '\\':
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multibackslash = not multibackslash
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k -= 1
|
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if multibackslash:
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multilinestr = multilinestr[:-1]
|
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else:
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multilinestr += "\n"
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continue
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if line[0] == '[':
|
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arrayoftables = False
|
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if len(line) == 1:
|
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raise TomlDecodeError("Opening key group bracket on line by "
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"itself.", original, pos)
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if line[1] == '[':
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arrayoftables = True
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line = line[2:]
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splitstr = ']]'
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else:
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line = line[1:]
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splitstr = ']'
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i = 1
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quotesplits = decoder._get_split_on_quotes(line)
|
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quoted = False
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for quotesplit in quotesplits:
|
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if not quoted and splitstr in quotesplit:
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break
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i += quotesplit.count(splitstr)
|
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quoted = not quoted
|
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line = line.split(splitstr, i)
|
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if len(line) < i + 1 or line[-1].strip() != "":
|
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raise TomlDecodeError("Key group not on a line by itself.",
|
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original, pos)
|
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groups = splitstr.join(line[:-1]).split('.')
|
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i = 0
|
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while i < len(groups):
|
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groups[i] = groups[i].strip()
|
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if len(groups[i]) > 0 and (groups[i][0] == '"' or
|
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groups[i][0] == "'"):
|
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groupstr = groups[i]
|
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j = i + 1
|
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while ((not groupstr[0] == groupstr[-1]) or
|
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len(groupstr) == 1):
|
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j += 1
|
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if j > len(groups) + 2:
|
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raise TomlDecodeError("Invalid group name '" +
|
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groupstr + "' Something " +
|
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"went wrong.", original, pos)
|
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groupstr = '.'.join(groups[i:j]).strip()
|
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groups[i] = groupstr[1:-1]
|
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groups[i + 1:j] = []
|
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else:
|
|
if not _groupname_re.match(groups[i]):
|
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raise TomlDecodeError("Invalid group name '" +
|
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groups[i] + "'. Try quoting it.",
|
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original, pos)
|
|
i += 1
|
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currentlevel = retval
|
|
for i in _range(len(groups)):
|
|
group = groups[i]
|
|
if group == "":
|
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raise TomlDecodeError("Can't have a keygroup with an empty "
|
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"name", original, pos)
|
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try:
|
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currentlevel[group]
|
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if i == len(groups) - 1:
|
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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.lower() == 'true':
|
|
raise ValueError("Only all lowercase booleans allowed")
|
|
elif v == 'false':
|
|
return (False, "bool")
|
|
elif v.lower() == 'false':
|
|
raise ValueError("Only all lowercase booleans allowed")
|
|
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)
|