ó
    ´OÂf<'  ã                   ó^   • S SK Jr  S SKJrJr  S rS rS r " S S5      rS r	S	 r
S
 rS rg)é    )Úfinditer)ÚescapeÚunescapec              #   óú   #   • [        U5      S:X  a  [        S5      eSn  U R                  X5      nUS:w  a  X#4v •  U[        U5      -   nM-  ! [         a!    U[        U 5      :w  a  U[        U 5      4v •   gf = f7f)aw  
Return the offsets of the tokens in *s*, as a sequence of ``(start, end)``
tuples, by splitting the string at each occurrence of *sep*.

    >>> from nltk.tokenize.util import string_span_tokenize
    >>> s = '''Good muffins cost $3.88\nin New York.  Please buy me
    ... two of them.\n\nThanks.'''
    >>> list(string_span_tokenize(s, " ")) # doctest: +NORMALIZE_WHITESPACE
    [(0, 4), (5, 12), (13, 17), (18, 26), (27, 30), (31, 36), (37, 37),
    (38, 44), (45, 48), (49, 55), (56, 58), (59, 73)]

:param s: the string to be tokenized
:type s: str
:param sep: the token separator
:type sep: str
:rtype: iter(tuple(int, int))
r   z!Token delimiter must not be emptyN)ÚlenÚ
ValueErrorÚindex)ÚsÚsepÚleftÚrights       Ú4/usr/lib/python3/dist-packages/nltk/tokenize/util.pyÚstring_span_tokenizer      s‰   é € ô$ ˆ3ƒx�1ƒ}ÜÐ<Ó=Ð=Ø€DØ
ð	Ø—G‘G˜CÓ&ˆEØ˜‹zØ�kÒ!ð ”s˜3“xÑˆñ øô
 ó 	Ø”s˜1“v‹~ØœC ›F�lÒ"Ùð	üs'   ‚A;¡A ½A;Á(A8Á5A;Á7A8Á8A;c              #   óŽ   #   • Sn[        X5       H!  nUR                  5       u  pEXB:w  a  X$4v •  UnM#     U[        U 5      4v •  g7f)aÍ  
Return the offsets of the tokens in *s*, as a sequence of ``(start, end)``
tuples, by splitting the string at each successive match of *regexp*.

    >>> from nltk.tokenize.util import regexp_span_tokenize
    >>> s = '''Good muffins cost $3.88\nin New York.  Please buy me
    ... two of them.\n\nThanks.'''
    >>> list(regexp_span_tokenize(s, r'\s')) # doctest: +NORMALIZE_WHITESPACE
    [(0, 4), (5, 12), (13, 17), (18, 23), (24, 26), (27, 30), (31, 36),
    (38, 44), (45, 48), (49, 51), (52, 55), (56, 58), (59, 64), (66, 73)]

:param s: the string to be tokenized
:type s: str
:param regexp: regular expression that matches token separators (must not be empty)
:type regexp: str
:rtype: iter(tuple(int, int))
r   N)r   Úspanr   )r
   Úregexpr   Úmr   Únexts         r   Úregexp_span_tokenizer   .   sJ   é € ð$ €DÜ�fÖ ˆØ—f‘f“h‰ˆØ‹=Ø�+ÒØŠñ	 !ð
 ”�A“ˆ,Óùs   ‚AAc              #   ó>   #   • SnU  H  u  p#X!-
  X2-
  4v •  UnM     g7f)a{  
Return a sequence of relative spans, given a sequence of spans.

    >>> from nltk.tokenize import WhitespaceTokenizer
    >>> from nltk.tokenize.util import spans_to_relative
    >>> s = '''Good muffins cost $3.88\nin New York.  Please buy me
    ... two of them.\n\nThanks.'''
    >>> list(spans_to_relative(WhitespaceTokenizer().span_tokenize(s))) # doctest: +NORMALIZE_WHITESPACE
    [(0, 4), (1, 7), (1, 4), (1, 5), (1, 2), (1, 3), (1, 5), (2, 6),
    (1, 3), (1, 2), (1, 3), (1, 2), (1, 5), (2, 7)]

:param spans: a sequence of (start, end) offsets of the tokens
:type spans: iter(tuple(int, int))
:rtype: iter(tuple(int, int))
r   N© )ÚspansÚprevr   r   s       r   Úspans_to_relativer   I   s,   é € ð  €DÛ‰ˆØ‰k˜5™<Ð'Ò'ØŠò ùs   ‚c                   óL   • \ rS rSrSrSrSrSrSrSr	Sr
S	rS
r\\\\\	\
\\/rSrg)ÚCJKCharsé_   aJ  
An object that enumerates the code points of the CJK characters as listed on
https://en.wikipedia.org/wiki/Basic_Multilingual_Plane#Basic_Multilingual_Plane

This is a Python port of the CJK code point enumerations of Moses tokenizer:
https://github.com/moses-smt/mosesdecoder/blob/master/scripts/tokenizer/detokenizer.perl#L309
©i   iÿ  ©i€.  iÏ¤  ©i@¨  i¨  ©i ¬  i¯×  ©i ù  iÿú  ©i0þ  iOþ  ©ieÿ  iÜÿ  ©i   iÿÿ r   N)Ú__name__Ú
__module__Ú__qualname__Ú__firstlineno__Ú__doc__ÚHangul_JamoÚCJK_RadicalsÚPhags_PaÚHangul_SyllablesÚCJK_Compatibility_IdeographsÚCJK_Compatibility_FormsÚKatakana_Hangul_HalfwidthÚSupplementary_Ideographic_PlaneÚrangesÚ__static_attributes__r   ó    r   r   r   _   se   † ñð €Kð* "€Lð €Hð &Ðð $2Ð ð -Ðð !/Ðð'Ð#ð 	ØØØØ$ØØ!Ø'ð	ƒFr5   r   c           
      ó†   • [        S VVs/ s H#  u  pU[        U 5      s=:*  =(       a    U:*  Os  PM%     snn5      $ s  snnf )u`  
Python port of Moses' code to check for CJK character.

>>> CJKChars().ranges
[(4352, 4607), (11904, 42191), (43072, 43135), (44032, 55215), (63744, 64255), (65072, 65103), (65381, 65500), (131072, 196607)]
>>> is_cjk(u'ã�¾')
True
>>> is_cjk(u'ï¹Ÿ')
False

:param character: The character that needs to be checked.
:type character: char
:return: bool
)r   r   r    r!   r"   r#   r$   r%   )ÚanyÚord)Ú	characterÚstartÚends      r   Úis_cjkr<   ¡   sJ   € ô ñ	ô	
ò	‘
�ð ”S˜“^×*Ó* s×*ñ	ò	
óð ùó	
s   ‹*=
c           	      ó"   • [        U SSSSSS.S9$ )aP  
This function transforms the input text into an "escaped" version suitable
for well-formed XML formatting.

Note that the default xml.sax.saxutils.escape() function don't escape
some characters that Moses does so we have to manually add them to the
entities dictionary.

    >>> input_str = ''')| & < > ' " ] ['''
    >>> expected_output =  ''')| &amp; &lt; &gt; ' " ] ['''
    >>> escape(input_str) == expected_output
    True
    >>> xml_escape(input_str)
    ')&#124; &amp; &lt; &gt; &apos; &quot; &#93; &#91;'

:param text: The text that needs to be escaped.
:type text: str
:rtype: str
ú&apos;ú&quot;ú&#124;ú&#91;ú&#93;)Ú'Ú"Ú|Ú[Ú]©Úentities)r   ©Útexts    r   Ú
xml_escaperL   Á   s(   € ô( ØàØØØØñ
ñ	ð 	r5   c           	      ó"   • [        U SSSSSS.S9$ )a2  
This function transforms the "escaped" version suitable
for well-formed XML formatting into humanly-readable string.

Note that the default xml.sax.saxutils.unescape() function don't unescape
some characters that Moses does so we have to manually add them to the
entities dictionary.

    >>> from xml.sax.saxutils import unescape
    >>> s = ')&#124; &amp; &lt; &gt; &apos; &quot; &#93; &#91;'
    >>> expected = ''')| & < > ' " ] ['''
    >>> xml_unescape(s) == expected
    True

:param text: The text that needs to be unescaped.
:type text: str
:rtype: str
rC   rD   rE   rF   rG   )r>   r?   r@   rA   rB   rH   )r   rJ   s    r   Úxml_unescaperN   á   s(   € ô& ØàØØØØñ
ñ	ð 	r5   c           	      óÎ   • Sn/ nU  H5  n UR                  XB5      nU[        U5      -   nUR                  XR45        M7     U$ ! [         a  n[        SU SU S35      UeSnAff = f)a]  
This module attempt to find the offsets of the tokens in *s*, as a sequence
of ``(start, end)`` tuples, given the tokens and also the source string.

    >>> from nltk.tokenize import TreebankWordTokenizer
    >>> from nltk.tokenize.util import align_tokens
    >>> s = str("The plane, bound for St Petersburg, crashed in Egypt's "
    ... "Sinai desert just 23 minutes after take-off from Sharm el-Sheikh "
    ... "on Saturday.")
    >>> tokens = TreebankWordTokenizer().tokenize(s)
    >>> expected = [(0, 3), (4, 9), (9, 10), (11, 16), (17, 20), (21, 23),
    ... (24, 34), (34, 35), (36, 43), (44, 46), (47, 52), (52, 54),
    ... (55, 60), (61, 67), (68, 72), (73, 75), (76, 83), (84, 89),
    ... (90, 98), (99, 103), (104, 109), (110, 119), (120, 122),
    ... (123, 131), (131, 132)]
    >>> output = list(align_tokens(tokens, s))
    >>> len(tokens) == len(expected) == len(output)  # Check that length of tokens and tuples are the same.
    True
    >>> expected == list(align_tokens(tokens, s))  # Check that the output is as expected.
    True
    >>> tokens == [s[start:end] for start, end in output]  # Check that the slices of the string corresponds to the tokens.
    True

:param tokens: The list of strings that are the result of tokenization
:type tokens: list(str)
:param sentence: The original string
:type sentence: str
:rtype: list(tuple(int,int))
r   zsubstring "z" not found in "rD   N)r	   r   r   Úappend)ÚtokensÚsentenceÚpointÚoffsetsÚtokenr:   Úes          r   Úalign_tokensrW      sƒ   € ð< €EØ€GÛˆð	VØ—N‘N 5Ó0ˆEð œ˜E›
Ñ"ˆØ�‰˜�~Ö&ñ ð €Nøô	 ó 	VÜ˜{¨5¨'Ð1AÀ(ÀÈ1ÐMÓNÐTUÐUûð	Vús   ‹AÁ
A$ÁAÁA$N)Úrer   Úxml.sax.saxutilsr   r   r   r   r   r   r<   rL   rN   rW   r   r5   r   Ú<module>rZ      s>   ðõ ß -ò òDò6÷,?ñ ?òDò@ò@ó>'r5   