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r�ej�d@�Z�ej�dA�Z�emeHeK�dB�Z�e�e�dCd�dD�j�e��Z�e�e�e��j��dE�Z�dFe�BZ�e�e�dCd�dD�j�e��Z�e�e�e��j��dG�Z�e�dH�e�dE�e�e�dG�Z�e�j��dI�e�j�j��dJ�e�j�j��dJ�e�j�j��dK�ddl�Z�e�j�j�e�e�j���e�j�j��dL�dS(Tay

pyparsing module - Classes and methods to define and execute parsing grammars
=============================================================================

The pyparsing module is an alternative approach to creating and
executing simple grammars, vs. the traditional lex/yacc approach, or the
use of regular expressions.  With pyparsing, you don't need to learn
a new syntax for defining grammars or matching expressions - the parsing
module provides a library of classes that you use to construct the
grammar directly in Python.

Here is a program to parse "Hello, World!" (or any greeting of the form
``"<salutation>, <addressee>!"``), built up using :class:`Word`,
:class:`Literal`, and :class:`And` elements
(the :class:`'+'<ParserElement.__add__>` operators create :class:`And` expressions,
and the strings are auto-converted to :class:`Literal` expressions)::

    from pyparsing import Word, alphas

    # define grammar of a greeting
    greet = Word(alphas) + "," + Word(alphas) + "!"

    hello = "Hello, World!"
    print (hello, "->", greet.parseString(hello))

The program outputs the following::

    Hello, World! -> ['Hello', ',', 'World', '!']

The Python representation of the grammar is quite readable, owing to the
self-explanatory class names, and the use of '+', '|' and '^' operators.

The :class:`ParseResults` object returned from
:class:`ParserElement.parseString` can be
accessed as a nested list, a dictionary, or an object with named
attributes.

The pyparsing module handles some of the problems that are typically
vexing when writing text parsers:

  - extra or missing whitespace (the above program will also handle
    "Hello,World!", "Hello  ,  World  !", etc.)
  - quoted strings
  - embedded comments


Getting Started -
-----------------
Visit the classes :class:`ParserElement` and :class:`ParseResults` to
see the base classes that most other pyparsing
classes inherit from. Use the docstrings for examples of how to:

 - construct literal match expressions from :class:`Literal` and
   :class:`CaselessLiteral` classes
 - construct character word-group expressions using the :class:`Word`
   class
 - see how to create repetitive expressions using :class:`ZeroOrMore`
   and :class:`OneOrMore` classes
 - use :class:`'+'<And>`, :class:`'|'<MatchFirst>`, :class:`'^'<Or>`,
   and :class:`'&'<Each>` operators to combine simple expressions into
   more complex ones
 - associate names with your parsed results using
   :class:`ParserElement.setResultsName`
 - find some helpful expression short-cuts like :class:`delimitedList`
   and :class:`oneOf`
 - find more useful common expressions in the :class:`pyparsing_common`
   namespace class
z2.4.0z07 Apr 2019 18:28 UTCz*Paul McGuire <ptmcg@users.sourceforge.net>�N)�ref)�datetime)�filterfalse)�ifilterfalse)�RLock)�Iterable)�MutableMapping)�OrderedDict)�SimpleNamespacec@seZdZdS)r
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    A cross-version compatibility configuration for pyparsing features that will be 
    released in a future version. By setting values in this configuration to True, 
    those features can be enabled in prior versions for compatibility development 
    and testing.
    
     - collect_all_And_tokens - flag to enable fix for Issue #63 that fixes erroneous grouping
       of results names when an And expression is nested within an Or or MatchFirst; set to 
       True to enable bugfix to be released in pyparsing 2.4
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        < returns the unicode object | encodes it with the default
        encoding | ... >.
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    Exception thrown when parse expressions don't match class;
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    - lineno - returns the line number of the exception text
    - col - returns the column number of the exception text
    - line - returns the line containing the exception text

    Example::

        try:
            Word(nums).setName("integer").parseString("ABC")
        except ParseException as pe:
            print(pe)
            print("column: {}".format(pe.col))

    prints::

       Expected integer (at char 0), (line:1, col:1)
        column: 1

    �cCspddl}|dkrtj�}g}t|t�rJ|j|j�|jd|jdd�|jdjt	|�j
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        Parameters:

         - exc - exception raised during parsing (need not be a ParseException, in support
           of Python exceptions that might be raised in a parse action)
         - depth (default=16) - number of levels back in the stack trace to list expression
           and function names; if None, the full stack trace names will be listed; if 0, only
           the failing input line, marker, and exception string will be shown

        Returns a multi-line string listing the ParserElements and/or function names in the
        exception's stack trace.

        Note: the diagnostic output will include string representations of the expressions
        that failed to parse. These representations will be more helpful if you use `setName` to
        give identifiable names to your expressions. Otherwise they will use the default string
        forms, which may be cryptic to read.

        explain() is only supported under Python 3.
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dd�Zdd�Zdd�Zdd�Zdd�Zer�eZeZeZn$eZeZeZdd�Zd d!�Zd"d#�Zd$d%�Zd&d'�Zd\d(d)�Zd*d+�Zd,d-�Zd.d/�Zd0d1�Z d2d3�Z!d4d5�Z"d6d7�Z#d8d9�Z$d:d;�Z%d<d=�Z&d]d?d@�Z'dAdB�Z(dCdD�Z)dEdF�Z*d^dHdI�Z+dJdK�Z,dLdM�Z-d_dOdP�Z.dQdR�Z/dSdT�Z0dUdV�Z1dWdX�Z2dYdZ�Z3dS)`r1aSStructured parse results, to provide multiple means of access to
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       - as a list (``len(results)``)
       - by list index (``results[0], results[1]``, etc.)
       - by attribute (``results.<resultsName>`` - see :class:`ParserElement.setResultsName`)

    Example::

        integer = Word(nums)
        date_str = (integer.setResultsName("year") + '/'
                        + integer.setResultsName("month") + '/'
                        + integer.setResultsName("day"))
        # equivalent form:
        # date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

        # parseString returns a ParseResults object
        result = date_str.parseString("1999/12/31")

        def test(s, fn=repr):
            print("%s -> %s" % (s, fn(eval(s))))
        test("list(result)")
        test("result[0]")
        test("result['month']")
        test("result.day")
        test("'month' in result")
        test("'minutes' in result")
        test("result.dump()", str)

    prints::

        list(result) -> ['1999', '/', '12', '/', '31']
        result[0] -> '1999'
        result['month'] -> '12'
        result.day -> '31'
        'month' in result -> True
        'minutes' in result -> False
        result.dump() -> ['1999', '/', '12', '/', '31']
        - day: 31
        - month: 12
        - year: 1999
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itervalues)r�rrr�valuesoszParseResults.valuescCst|j��S)zfReturns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x).)r��	iteritems)r�rrrrsszParseResults.itemscCs
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           code that looks for the existence of any defined results names.)�boolr�)r�rrr�haskeyswszParseResults.haskeyscOs�|s
dg}x6|j�D]*\}}|dkr2|d|f}qtd|��qWt|dt�sht|�dksh|d|kr�|d}||}||=|S|d}|SdS)a�
        Removes and returns item at specified index (default= ``last``).
        Supports both ``list`` and ``dict`` semantics for ``pop()``. If
        passed no argument or an integer argument, it will use ``list``
        semantics and pop tokens from the list of parsed tokens. If passed
        a non-integer argument (most likely a string), it will use ``dict``
        semantics and pop the corresponding value from any defined results
        names. A second default return value argument is supported, just as in
        ``dict.pop()``.

        Example::

            def remove_first(tokens):
                tokens.pop(0)
            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
            print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321']

            label = Word(alphas)
            patt = label("LABEL") + OneOrMore(Word(nums))
            print(patt.parseString("AAB 123 321").dump())

            # Use pop() in a parse action to remove named result (note that corresponding value is not
            # removed from list form of results)
            def remove_LABEL(tokens):
                tokens.pop("LABEL")
                return tokens
            patt.addParseAction(remove_LABEL)
            print(patt.parseString("AAB 123 321").dump())

        prints::

            ['AAB', '123', '321']
            - LABEL: AAB

            ['AAB', '123', '321']
        r��defaultrz-pop() got an unexpected keyword argument '%s'Nr�)rr�r�r�r�)r�r��kwargsr�r��indexr�Zdefaultvaluerrr�pop|s%zParseResults.popcCs||kr||S|SdS)a[
        Returns named result matching the given key, or if there is no
        such name, then returns the given ``defaultValue`` or ``None`` if no
        ``defaultValue`` is specified.

        Similar to ``dict.get()``.

        Example::

            integer = Word(nums)
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

            result = date_str.parseString("1999/12/31")
            print(result.get("year")) # -> '1999'
            print(result.get("hour", "not specified")) # -> 'not specified'
            print(result.get("hour")) # -> None
        Nr)r��key�defaultValuerrrr��szParseResults.getcCsZ|jj||�xF|jj�D]8\}}x.t|�D]"\}\}}t||||k�||<q,WqWdS)a
        Inserts new element at location index in the list of parsed tokens.

        Similar to ``list.insert()``.

        Example::

            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']

            # use a parse action to insert the parse location in the front of the parsed results
            def insert_locn(locn, tokens):
                tokens.insert(0, locn)
            print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321']
        N)r��insertr�rr�r�)r�rZinsStrr�rr�rrrrrr �szParseResults.insertcCs|jj|�dS)a�
        Add single element to end of ParseResults list of elements.

        Example::

            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']

            # use a parse action to compute the sum of the parsed integers, and add it to the end
            def append_sum(tokens):
                tokens.append(sum(map(int, tokens)))
            print(OneOrMore(Word(nums)).addParseAction(append_sum).parseString("0 123 321")) # -> ['0', '123', '321', 444]
        N)r�r�)r��itemrrrr��s
zParseResults.appendcCs&t|t�r|j|�n|jj|�dS)a	
        Add sequence of elements to end of ParseResults list of elements.

        Example::

            patt = OneOrMore(Word(alphas))

            # use a parse action to append the reverse of the matched strings, to make a palindrome
            def make_palindrome(tokens):
                tokens.extend(reversed([t[::-1] for t in tokens]))
                return ''.join(tokens)
            print(patt.addParseAction(make_palindrome).parseString("lskdj sdlkjf lksd")) # -> 'lskdjsdlkjflksddsklfjkldsjdksl'
        N)r�r1�__iadd__r��extend)r�Zitemseqrrrr#�s
zParseResults.extendcCs|jdd�=|jj�dS)z7
        Clear all elements and results names.
        N)r�r��clear)r�rrrr$szParseResults.clearcCsfy||Stk
rdSX||jkr^||jkrD|j|ddStdd�|j|D��SndSdS)Nr�r�rcSsg|]}|d�qS)rr)r�r�rrrr�sz,ParseResults.__getattr__.<locals>.<listcomp>r�)r�r�r�r1)r�r�rrrr�s

zParseResults.__getattr__cCs|j�}||7}|S)N)�copy)r��otherr�rrr�__add__szParseResults.__add__cs�|jrnt|j���fdd��|jj�}�fdd�|D�}x4|D],\}}|||<t|dt�r>t|�|d_q>W|j|j7_|jj	|j�|S)Ncs|dkr�S|�S)Nrr)�a)�offsetrrr�sz'ParseResults.__iadd__.<locals>.<lambda>c	s4g|],\}}|D]}|t|d�|d��f�qqS)rr�)r�)r�r��vlistr�)�	addoffsetrrr� sz)ParseResults.__iadd__.<locals>.<listcomp>r)
r�r�r�rr�r1r�r�r��update)r�r&Z
otheritemsZotherdictitemsr�r�r)r+r)rr"s


zParseResults.__iadd__cCs&t|t�r|dkr|j�S||SdS)Nr)r�r�r%)r�r&rrr�__radd__+szParseResults.__radd__cCsdt|j�t|j�fS)Nz(%s, %s))r�r�r�)r�rrrr�3szParseResults.__repr__cCsddjdd�|jD��dS)N�[z, css(|] }t|t�rt|�nt|�VqdS)N)r�r1r�r�)r�r�rrrr�7sz'ParseResults.__str__.<locals>.<genexpr>�])r�r�)r�rrrr�6szParseResults.__str__r�cCsPg}xF|jD]<}|r"|r"|j|�t|t�r:||j�7}q|jt|��qW|S)N)r�r�r�r1�
_asStringListr�)r��sep�outr!rrrr09s

zParseResults._asStringListcCsdd�|jD�S)ax
        Returns the parse results as a nested list of matching tokens, all converted to strings.

        Example::

            patt = OneOrMore(Word(alphas))
            result = patt.parseString("sldkj lsdkj sldkj")
            # even though the result prints in string-like form, it is actually a pyparsing ParseResults
            print(type(result), result) # -> <class 'pyparsing.ParseResults'> ['sldkj', 'lsdkj', 'sldkj']

            # Use asList() to create an actual list
            result_list = result.asList()
            print(type(result_list), result_list) # -> <class 'list'> ['sldkj', 'lsdkj', 'sldkj']
        cSs"g|]}t|t�r|j�n|�qSr)r�r1r�)r��resrrrr�Ssz'ParseResults.asList.<locals>.<listcomp>)r�)r�rrrr�DszParseResults.asListcs6tr|j}n|j}�fdd��t�fdd�|�D��S)a�
        Returns the named parse results as a nested dictionary.

        Example::

            integer = Word(nums)
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

            result = date_str.parseString('12/31/1999')
            print(type(result), repr(result)) # -> <class 'pyparsing.ParseResults'> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]})

            result_dict = result.asDict()
            print(type(result_dict), repr(result_dict)) # -> <class 'dict'> {'day': '1999', 'year': '12', 'month': '31'}

            # even though a ParseResults supports dict-like access, sometime you just need to have a dict
            import json
            print(json.dumps(result)) # -> Exception: TypeError: ... is not JSON serializable
            print(json.dumps(result.asDict())) # -> {"month": "31", "day": "1999", "year": "12"}
        cs6t|t�r.|j�r|j�S�fdd�|D�Sn|SdS)Ncsg|]}�|��qSrr)r�r�)�toItemrrr�ssz7ParseResults.asDict.<locals>.toItem.<locals>.<listcomp>)r�r1r�asDict)r�)r4rrr4ns

z#ParseResults.asDict.<locals>.toItemc3s|]\}}|�|�fVqdS)Nr)r�r�r�)r4rrr�wsz&ParseResults.asDict.<locals>.<genexpr>)�PY_3rrr�)r�Zitem_fnr)r4rr5Us
	zParseResults.asDictcCs<t|j�}t|jj��|_|j|_|jj|j�|j|_|S)zG
        Returns a new copy of a :class:`ParseResults` object.
        )	r1r�r�r�rr�r�r,r�)r�r�rrrr%ys
zParseResults.copyFcCsPd}g}tdd�|jj�D��}|d}|s8d}d}d}d}	|dk	rJ|}	n|jrV|j}	|	sf|rbdSd}	|||d|	d	g7}x�t|j�D]�\}
}t|t�r�|
|kr�||j||
|o�|dk||�g7}n||jd|o�|dk||�g7}q�d}|
|kr�||
}|�s
|�rq�nd}t	t
|��}
|||d|d	|
d
|d	g	7}q�W|||d
|	d	g7}dj|�S)z�
        (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names.
        r�css(|] \}}|D]}|d|fVqqdS)r�Nr)r�r�r*r�rrrr��sz%ParseResults.asXML.<locals>.<genexpr>z  r�NZITEM�<�>z</)r�r�rr�r�r�r�r1�asXMLr�r�r�)r�ZdoctagZnamedItemsOnly�indentZ	formatted�nlr2Z
namedItemsZnextLevelIndentZselfTagr�r3ZresTagZxmlBodyTextrrrr9�sT


zParseResults.asXMLcCs:x4|jj�D]&\}}x|D]\}}||kr|SqWqWdS)N)r�r)r�r�r�r*r�r�rrrZ__lookup�s
zParseResults.__lookupcCs�|jr|jS|jr.|j�}|r(|j|�SdSnNt|�dkrxt|j�dkrxtt|jj���dddkrxtt|jj���SdSdS)a
        Returns the results name for this token expression. Useful when several
        different expressions might match at a particular location.

        Example::

            integer = Word(nums)
            ssn_expr = Regex(r"\d\d\d-\d\d-\d\d\d\d")
            house_number_expr = Suppress('#') + Word(nums, alphanums)
            user_data = (Group(house_number_expr)("house_number")
                        | Group(ssn_expr)("ssn")
                        | Group(integer)("age"))
            user_info = OneOrMore(user_data)

            result = user_info.parseString("22 111-22-3333 #221B")
            for item in result:
                print(item.getName(), ':', item[0])

        prints::

            age : 22
            ssn : 111-22-3333
            house_number : 221B
        Nr�rr�)rr�)	r�r��_ParseResults__lookupr�r��nextrrr)r��parrrr�getName�s
zParseResults.getNamercCsbg}d}|j|t|j���|�rX|j�r�tdd�|j�D��}xz|D]r\}}|r^|j|�|jd|d||f�t|t�r�|r�|j|j||d��q�|jt|��qH|jt	|��qHWn�t
dd�|D���rX|}x~t|�D]r\}	}
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t��r*|jd|d||	|d|d|
j||d�f�q�|jd|d||	|d|dt|
�f�q�Wd	j|�S)
aF
        Diagnostic method for listing out the contents of
        a :class:`ParseResults`. Accepts an optional ``indent`` argument so
        that this string can be embedded in a nested display of other data.

        Example::

            integer = Word(nums)
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

            result = date_str.parseString('12/31/1999')
            print(result.dump())

        prints::

            ['12', '/', '31', '/', '1999']
            - day: 1999
            - month: 31
            - year: 12
        r�css|]\}}t|�|fVqdS)N)r�)r�r�r�rrrr�
sz$ParseResults.dump.<locals>.<genexpr>z
%s%s- %s: z  r�css|]}t|t�VqdS)N)r�r1)r��vvrrrr�sz
%s%s[%d]:
%s%s%sr�)
r�r�r�r�sortedrr�r1�dumpr��anyr�r�)r�r:r��fullr2�NLrr�r�r�r@rrrrB�s,

4.zParseResults.dumpcOstj|j�f|�|�dS)a#
        Pretty-printer for parsed results as a list, using the
        `pprint <https://docs.python.org/3/library/pprint.html>`_ module.
        Accepts additional positional or keyword args as defined for
        `pprint.pprint <https://docs.python.org/3/library/pprint.html#pprint.pprint>`_ .

        Example::

            ident = Word(alphas, alphanums)
            num = Word(nums)
            func = Forward()
            term = ident | num | Group('(' + func + ')')
            func <<= ident + Group(Optional(delimitedList(term)))
            result = func.parseString("fna a,b,(fnb c,d,200),100")
            result.pprint(width=40)

        prints::

            ['fna',
             ['a',
              'b',
              ['(', 'fnb', ['c', 'd', '200'], ')'],
              '100']]
        N)�pprintr�)r�r�rrrrrF szParseResults.pprintcCs.|j|jj�|jdk	r|j�p d|j|jffS)N)r�r�r%r�r�r�)r�rrr�__getstate__<s
zParseResults.__getstate__cCsN|d|_|d\|_}}|_i|_|jj|�|dk	rDt|�|_nd|_dS)Nrr�)r�r�r�r�r,r�r�)r��stater>ZinAccumNamesrrr�__setstate__Cs
zParseResults.__setstate__cCs|j|j|j|jfS)N)r�r�r�r�)r�rrr�__getnewargs__PszParseResults.__getnewargs__cCstt|��t|j��S)N)r�r�r�r)r�rrrr�SszParseResults.__dir__)NNTT)N)r�)NFr�T)r�rT)4rrr
r�r�r�r�r�r�rr	r
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	'	
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$
=(
0
cCsF|}d|kot|�knr4||ddkr4dS||jdd|�S)a�Returns current column within a string, counting newlines as line separators.
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   before starting the parsing process.  See
   :class:`ParserElement.parseString` for more
   information on parsing strings containing ``<TAB>`` s, and suggested
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   location, and line and column positions within the parsed string.
   rr�r�)r��rfind)r��strgr�rrrrIXscCs|jdd|�dS)a�Returns current line number within a string, counting newlines as line separators.
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    for more information on parsing strings containing ``<TAB>`` s, and
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    r�rr�)�count)r�rMrrrrZfs
cCsF|jdd|�}|jd|�}|dkr2||d|�S||dd�SdS)zfReturns the line of text containing loc within a string, counting newlines as line separators.
       r�rr�N)rL�find)r�rMZlastCRZnextCRrrrrWrs
cCs8tdt|�dt|�dt||�t||�f�dS)NzMatch z at loc z(%d,%d))�printr�rZrI)�instringr��exprrrr�_defaultStartDebugAction|srScCs$tdt|�dt|j���dS)NzMatched z -> )rPr�r�r�)rQ�startlocZendlocrR�toksrrr�_defaultSuccessDebugActionsrVcCstdt|��dS)NzException raised:)rPr�)rQr�rRr�rrr�_defaultExceptionDebugAction�srWcGsdS)zG'Do-nothing' debug action, to suppress debugging output during parsing.Nr)r�rrrra�sr�cs��tkr�fdd�Sdg�dg�tdd�dkrFddd	�}dd
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r��dr>�n4z.tj�d}�|dd�ddd��ksj�Wd~X�d�kr��dd7<w�YqXqWdS)NrTr�r�)r[r�r�)r�r��exc_info)r�r�rc)rb�
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rncs�eZdZdZdZdZedd��Zedd��Zd�dd	�Z	d
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�Zd�dd�Zd�dd�Z
dd�Zdd�Zdd�Zdd�Zdd�Zdd�Zd�dd �Zd!d"�Zd�d#d$�Zd%d&�Zd'd(�ZGd)d*�d*e�Zed+k	r�Gd,d-�d-e�ZnGd.d-�d-e�ZiZe�Zd/d/gZ d�d0d1�Z!eZ"ed2d3��Z#dZ$ed�d5d6��Z%d�d7d8�Z&e'dfd9d:�Z(d;d<�Z)e'fd=d>�Z*e'dfd?d@�Z+dAdB�Z,dCdD�Z-dEdF�Z.dGdH�Z/dIdJ�Z0dKdL�Z1dMdN�Z2dOdP�Z3dQdR�Z4dSdT�Z5dUdV�Z6dWdX�Z7dYdZ�Z8d�d[d\�Z9d]d^�Z:d_d`�Z;dadb�Z<dcdd�Z=dedf�Z>dgdh�Z?d�didj�Z@dkdl�ZAdmdn�ZBdodp�ZCdqdr�ZDgfdsdt�ZEd�dudv�ZF�fdwdx�ZGdydz�ZHd{d|�ZId}d~�ZJdd��ZKd�d�d��ZLd�d�d��ZM�ZNS)�r3z)Abstract base level parser element class.z 
	
FcCs
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        Overrides the default whitespace chars

        Example::

            # default whitespace chars are space, <TAB> and newline
            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def', 'ghi', 'jkl']

            # change to just treat newline as significant
            ParserElement.setDefaultWhitespaceChars(" \t")
            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def']
        N)r3�DEFAULT_WHITE_CHARS)�charsrrr�setDefaultWhitespaceChars�sz'ParserElement.setDefaultWhitespaceCharscCs
|t_dS)ah
        Set class to be used for inclusion of string literals into a parser.

        Example::

            # default literal class used is Literal
            integer = Word(nums)
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']


            # change to Suppress
            ParserElement.inlineLiteralsUsing(Suppress)
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")

            date_str.parseString("1999/12/31")  # -> ['1999', '12', '31']
        N)r3�_literalStringClass)r�rrr�inlineLiteralsUsing�sz!ParserElement.inlineLiteralsUsingcCs�t�|_d|_d|_d|_||_d|_ttj	�|_
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failAction�strRepr�resultsName�
saveAsList�skipWhitespacer�r3ro�
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mayIndexError�errmsg�modalResults�debugActions�re�callPreparse�
callDuringTry)r��savelistrrrr�s(zParserElement.__init__cCs<tj|�}|jdd�|_|jdd�|_|jr8tj|_|S)a%
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        the original parse element.

        Example::

            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")

            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))

        prints::

            [5120, 100, 655360, 268435456]

        Equivalent form of ``expr.copy()`` is just ``expr()``::

            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
        N)r%rtr~r{r3rorz)r�Zcpyrrrr%"s
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            Word(nums).parseString("ABC")  # -> Exception: Expected W:(0123...) (at char 0), (line:1, col:1)
            Word(nums).setName("integer").parseString("ABC")  # -> Exception: Expected integer (at char 0), (line:1, col:1)
        z	Expected �	exception)r�r�rr�r�)r�r�rrr�setName?s
	

zParserElement.setNamecCs4|j�}|jd�r"|dd�}d}||_||_|S)aO
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        this is so that the client can define a basic element, such as an
        integer, and reference it in multiple places with different names.

        You can also set results names using the abbreviated syntax,
        ``expr("name")`` in place of ``expr.setResultsName("name")``
        - see :class:`__call__`.

        Example::

            date_str = (integer.setResultsName("year") + '/'
                        + integer.setResultsName("month") + '/'
                        + integer.setResultsName("day"))

            # equivalent form:
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
        �*Nr�Tr�)r%�endswithrwr�)r�r�ZlistAllMatchesZnewselfrrr�setResultsNameNs
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        Define one or more actions to perform when successfully matching parse element definition.
        Parse action fn is a callable method with 0-3 arguments, called as ``fn(s,loc,toks)`` ,
        ``fn(loc,toks)`` , ``fn(toks)`` , or just ``fn()`` , where:

        - s   = the original string being parsed (see note below)
        - loc = the location of the matching substring
        - toks = a list of the matched tokens, packaged as a :class:`ParseResults` object

        If the functions in fns modify the tokens, they can return them as the return
        value from fn, and the modified list of tokens will replace the original.
        Otherwise, fn does not need to return any value.

        Optional keyword arguments:
        - callDuringTry = (default= ``False`` ) indicate if parse action should be run during lookaheads and alternate testing

        Note: the default parsing behavior is to expand tabs in the input string
        before starting the parsing process.  See :class:`parseString for more
        information on parsing strings containing ``<TAB>`` s, and suggested
        methods to maintain a consistent view of the parsed string, the parse
        location, and line and column positions within the parsed string.

        Example::

            integer = Word(nums)
            date_str = integer + '/' + integer + '/' + integer

            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']

            # use parse action to convert to ints at parse time
            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
            date_str = integer + '/' + integer + '/' + integer

            # note that integer fields are now ints, not strings
            date_str.parseString("1999/12/31")  # -> [1999, '/', 12, '/', 31]
        r�F)r��maprnrtr�r�)r��fnsrrrrr�}s%zParserElement.setParseActioncOs4|jtttt|���7_|jp,|jdd�|_|S)z�
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        r�F)rtr�r�rnr�r�)r�r�rrrr�addParseAction�szParserElement.addParseActioncsj|jdd��|jdd�rtnt�x0|D](�t������fdd�}|jj|�q&W|jpb|jdd�|_|S)a�Add a boolean predicate function to expression's list of parse actions. See
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        Optional keyword arguments:
        - message = define a custom message to be used in the raised exception
        - fatal   = if True, will raise ParseFatalException to stop parsing immediately; otherwise will raise ParseException

        Example::

            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
            year_int = integer.copy()
            year_int.addCondition(lambda toks: toks[0] >= 2000, message="Only support years 2000 and later")
            date_str = year_int + '/' + integer + '/' + integer

            result = date_str.parseString("1999/12/31")  # -> Exception: Only support years 2000 and later (at char 0), (line:1, col:1)
        �messagezfailed user-defined condition�fatalFcs t�|||��s�||���dS)N)r)r�rXr�)�exc_type�fnr�rr�pa�sz&ParserElement.addCondition.<locals>.par�)r�r0r.rnrtr�r�)r�r�rr�r)r�r�r�r�addCondition�s
zParserElement.addConditioncCs
||_|S)aDefine action to perform if parsing fails at this expression.
           Fail acton fn is a callable function that takes the arguments
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           - s = string being parsed
           - loc = location where expression match was attempted and failed
           - expr = the parse expression that failed
           - err = the exception thrown
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r�t|t|�|j	|��YnXWnXt
k
r�}	z<|jdr�|jd||||	�|jr�|j||||	��WYdd}	~	XnXn�|o�|j�r|j||�}n|}|}|j�s$|t|�k�rhy|j|||�\}}Wn*tk
�rdt|t|�|j	|��YnXn|j|||�\}}|j|||�}t
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�}Wn6tk
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tf�|jd�}
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zParserElement.canParseNextc@seZdZdd�ZdS)zParserElement._UnboundedCachecs~i�t�|_���fdd�}�fdd�}�fdd�}�fdd�}tj||�|_tj||�|_tj||�|_tj||�|_dS)	Ncs�j|��S)N)r�)r�r)�cache�not_in_cacherrr�`sz3ParserElement._UnboundedCache.__init__.<locals>.getcs|�|<dS)Nr)r�rr)r�rrr�csz3ParserElement._UnboundedCache.__init__.<locals>.setcs�j�dS)N)r$)r�)r�rrr$fsz5ParserElement._UnboundedCache.__init__.<locals>.clearcst��S)N)r�)r�)r�rr�	cache_lenisz9ParserElement._UnboundedCache.__init__.<locals>.cache_len)r�r��types�
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r�rrrr�_UnboundedCache[sr�Nc@seZdZdd�ZdS)zParserElement._FifoCachecs�t�|_�t����fdd�}��fdd�}�fdd�}�fdd�}tj||�|_tj||�|_tj||�|_tj||�|_dS)	Ncs�j|��S)N)r�)r�r)r�r�rrr�xsz.ParserElement._FifoCache.__init__.<locals>.getcsB|�|<x4t���kr<y�jd�Wq
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WdS)NF)r��popitemr�)r�rr)r��sizerrr�{sz.ParserElement._FifoCache.__init__.<locals>.setcs�j�dS)N)r$)r�)r�rrr$�sz0ParserElement._FifoCache.__init__.<locals>.clearcst��S)N)r�)r�)r�rrr��sz4ParserElement._FifoCache.__init__.<locals>.cache_len)	r�r��_OrderedDictr�r�r�r�r$r
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r�rrrrr��srcCs�d\}}|||||f}tj��tj}|j|�}	|	|jkr�tj|d7<y|j||||�}	Wn8tk
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�r�|	�|	d|	dj�fSWdQRXdS)Nrr�)rr�)r3�packrat_cache_lock�
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zParserElement._parseCachecCs(tjj�dgttj�tjdd�<dS)Nr)r3r�r$r�r�rrrr�
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zParserElement.resetCache�cCs8tjs4dt_|dkr tj�t_ntj|�t_tjt_dS)a�Enables "packrat" parsing, which adds memoizing to the parsing logic.
           Repeated parse attempts at the same string location (which happens
           often in many complex grammars) can immediately return a cached value,
           instead of re-executing parsing/validating code.  Memoizing is done of
           both valid results and parsing exceptions.

           Parameters:

           - cache_size_limit - (default= ``128``) - if an integer value is provided
             will limit the size of the packrat cache; if None is passed, then
             the cache size will be unbounded; if 0 is passed, the cache will
             be effectively disabled.

           This speedup may break existing programs that use parse actions that
           have side-effects.  For this reason, packrat parsing is disabled when
           you first import pyparsing.  To activate the packrat feature, your
           program must call the class method :class:`ParserElement.enablePackrat`.
           For best results, call ``enablePackrat()`` immediately after
           importing pyparsing.

           Example::

               import pyparsing
               pyparsing.ParserElement.enablePackrat()
        TN)r3�_packratEnabledr�r�r�r�r�)Zcache_size_limitrrr�
enablePackrat�szParserElement.enablePackratcCs�tj�|js|j�x|jD]}|j�qW|js<|j�}y<|j|d�\}}|rv|j||�}t	�t
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        Execute the parse expression with the given string.
        This is the main interface to the client code, once the complete
        expression has been built.

        If you want the grammar to require that the entire input string be
        successfully parsed, then set ``parseAll`` to True (equivalent to ending
        the grammar with ``StringEnd()``).

        Note: ``parseString`` implicitly calls ``expandtabs()`` on the input string,
        in order to report proper column numbers in parse actions.
        If the input string contains tabs and
        the grammar uses parse actions that use the ``loc`` argument to index into the
        string being parsed, you can ensure you have a consistent view of the input
        string by:

        - calling ``parseWithTabs`` on your grammar before calling ``parseString``
          (see :class:`parseWithTabs`)
        - define your parse action using the full ``(s,loc,toks)`` signature, and
          reference the input string using the parse action's ``s`` argument
        - explictly expand the tabs in your input string before calling
          ``parseString``

        Example::

            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
        rN)
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expandtabsr�r�rr8r,�verbose_stacktrace)r�rQ�parseAllr�r�r�Zser�rrr�parseString�s$zParserElement.parseStringccs@|js|j�x|jD]}|j�qW|js8t|�j�}t|�}d}|j}|j}t	j
�d}	y�x�||kon|	|k�ry |||�}
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dd�\}}Wntk
r�|
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        Scan the input string for expression matches.  Each match will return the
        matching tokens, start location, and end location.  May be called with optional
        ``maxMatches`` argument, to clip scanning after 'n' matches are found.  If
        ``overlap`` is specified, then overlapping matches will be reported.

        Note that the start and end locations are reported relative to the string
        being parsed.  See :class:`parseString` for more information on parsing
        strings with embedded tabs.

        Example::

            source = "sldjf123lsdjjkf345sldkjf879lkjsfd987"
            print(source)
            for tokens,start,end in Word(alphas).scanString(source):
                print(' '*start + '^'*(end-start))
                print(' '*start + tokens[0])

        prints::

            sldjf123lsdjjkf345sldkjf879lkjsfd987
            ^^^^^
            sldjf
                    ^^^^^^^
                    lsdjjkf
                              ^^^^^^
                              sldkjf
                                       ^^^^^^
                                       lkjsfd
        rF)r�r�N)r�r�r~r}r�r�r�r�r�r3r�r.r,r�)r�rQ�
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scanString(sB


zParserElement.scanStringcCs�g}d}d|_y�xh|j|�D]Z\}}}|j|||��|rrt|t�rT||j�7}nt|t�rh||7}n
|j|�|}qW|j||d��dd�|D�}djtt	t
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r�}ztj
rȂn|�WYdd}~XnXdS)a[
        Extension to :class:`scanString`, to modify matching text with modified tokens that may
        be returned from a parse action.  To use ``transformString``, define a grammar and
        attach a parse action to it that modifies the returned token list.
        Invoking ``transformString()`` on a target string will then scan for matches,
        and replace the matched text patterns according to the logic in the parse
        action.  ``transformString()`` returns the resulting transformed string.

        Example::

            wd = Word(alphas)
            wd.setParseAction(lambda toks: toks[0].title())

            print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york."))

        prints::

            Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York.
        rTNcSsg|]}|r|�qSrr)r��orrrr��sz1ParserElement.transformString.<locals>.<listcomp>r�)r}r�r�r�r1r�r�r�r�r��_flattenr,r3r�)r�rQr2ZlastEr�r�r�r�rrrr�ps(



zParserElement.transformStringcCsPytdd�|j||�D��Stk
rJ}ztjr6�n|�WYdd}~XnXdS)a�
        Another extension to :class:`scanString`, simplifying the access to the tokens found
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        ``maxMatches`` argument, to clip searching after 'n' matches are found.

        Example::

            # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters
            cap_word = Word(alphas.upper(), alphas.lower())

            print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))

            # the sum() builtin can be used to merge results into a single ParseResults object
            print(sum(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity")))

        prints::

            [['More'], ['Iron'], ['Lead'], ['Gold'], ['I'], ['Electricity']]
            ['More', 'Iron', 'Lead', 'Gold', 'I', 'Electricity']
        cSsg|]\}}}|�qSrr)r�r�r�r�rrrr��sz.ParserElement.searchString.<locals>.<listcomp>N)r1r�r,r3r�)r�rQr�r�rrr�searchString�szParserElement.searchStringc	csXd}d}x<|j||d�D]*\}}}|||�V|r>|dV|}qW||d�VdS)aR
        Generator method to split a string using the given expression as a separator.
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        matching text should be included in the split results.

        Example::

            punc = oneOf(list(".,;:/-!?"))
            print(list(punc.split("This, this?, this sentence, is badly punctuated!")))

        prints::

            ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
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zParserElement.splitcCsFt|t�rtj|�}t|t�s:tjdt|�tdd�dSt||g�S)a�
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            greet = Word(alphas) + "," + Word(alphas) + "!"
            hello = "Hello, World!"
            print (hello, "->", greet.parseString(hello))

        prints::

            Hello, World! -> ['Hello', ',', 'World', '!']
        z4Cannot combine element of type %s with ParserElementr�)�
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zParserElement.__radd__cCsJt|t�rtj|�}t|t�s:tjdt|�tdd�dS|tj	�|S)zT
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        Implementation of * operator, allows use of ``expr * 3`` in place of
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        may also include ``None`` as in:
         - ``expr*(n,None)`` or ``expr*(n,)`` is equivalent
              to ``expr*n + ZeroOrMore(expr)``
              (read as "at least n instances of ``expr``")
         - ``expr*(None,n)`` is equivalent to ``expr*(0,n)``
              (read as "0 to n instances of ``expr``")
         - ``expr*(None,None)`` is equivalent to ``ZeroOrMore(expr)``
         - ``expr*(1,None)`` is equivalent to ``OneOrMore(expr)``

        Note that ``expr*(None,n)`` does not raise an exception if
        more than n exprs exist in the input stream; that is,
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zParserElement.__or__cCsBt|t�rtj|�}t|t�s:tjdt|�tdd�dS||BS)z`
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zParserElement.__ror__cCsFt|t�rtj|�}t|t�s:tjdt|�tdd�dSt||g�S)zD
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zParserElement.__xor__cCsBt|t�rtj|�}t|t�s:tjdt|�tdd�dS||AS)z`
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zParserElement.__rxor__cCsFt|t�rtj|�}t|t�s:tjdt|�tdd�dSt||g�S)zF
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zParserElement.__and__cCsBt|t�rtj|�}t|t�s:tjdt|�tdd�dS||@S)z`
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        Shortcut for :class:`setResultsName`, with ``listAllMatches=False``.

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        Example::

            # these are equivalent
            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
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        Overrides default behavior to expand ``<TAB>``s to spaces before parsing the input string.
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parseWithTabs�szParserElement.parseWithTabscCsLt|t�rt|�}t|t�r4||jkrH|jj|�n|jjt|j���|S)a�
        Define expression to be ignored (e.g., comments) while doing pattern
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            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']

            patt.ignore(cStyleComment)
            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
        )r�r�r:r~r�r%)r�r&rrr�ignore�s


zParserElement.ignorecCs"|pt|pt|ptf|_d|_|S)zT
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            wd = Word(alphas).setName("alphaword")
            integer = Word(nums).setName("numword")
            term = wd | integer

            # turn on debugging for wd
            wd.setDebug()

            OneOrMore(term).parseString("abc 123 xyz 890")

        prints::

            Match alphaword at loc 0(1,1)
            Matched alphaword -> ['abc']
            Match alphaword at loc 3(1,4)
            Exception raised:Expected alphaword (at char 4), (line:1, col:5)
            Match alphaword at loc 7(1,8)
            Matched alphaword -> ['xyz']
            Match alphaword at loc 11(1,12)
            Exception raised:Expected alphaword (at char 12), (line:1, col:13)
            Match alphaword at loc 15(1,16)
            Exception raised:Expected alphaword (at char 15), (line:1, col:16)

        The output shown is that produced by the default debug actions - custom debug actions can be
        specified using :class:`setDebugActions`. Prior to attempting
        to match the ``wd`` expression, the debugging message ``"Match <exprname> at loc <n>(<line>,<col>)"``
        is shown. Then if the parse succeeds, a ``"Matched"`` message is shown, or an ``"Exception raised"``
        message is shown. Also note the use of :class:`setName` to assign a human-readable name to the expression,
        which makes debugging and exception messages easier to understand - for instance, the default
        name created for the :class:`Word` expression without calling ``setName`` is ``"W:(ABCD...)"``.
        F)r�rSrVrWr)r��flagrrr�setDebug�s%zParserElement.setDebugcCs|jS)N)r�)r�rrrr�(	szParserElement.__str__cCst|�S)N)r�)r�rrrr�+	szParserElement.__repr__cCsd|_d|_|S)NT)r�rv)r�rrrr�.	szParserElement.streamlinecCsdS)Nr)r�r�rrr�checkRecursion3	szParserElement.checkRecursioncCs|jg�dS)zj
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        N)r�)r��
validateTracerrr�validate6	szParserElement.validatecCs�y|j�}Wn2tk
r>t|d��}|j�}WdQRXYnXy|j||�Stk
r|}ztjrh�n|�WYdd}~XnXdS)z�
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||kS)Nr)r�r&rrr�__ne__X	szParserElement.__ne__cCstt|��S)N)�hash�id)r�rrr�__hash__[	szParserElement.__hash__cCs||kS)Nr)r�r&rrr�__req__^	szParserElement.__req__cCs
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        Parameters:
         - testString - to test against this expression for a match
         - parseAll - (default= ``True``) - flag to pass to :class:`parseString` when running tests

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            assert expr.matches("100")
        )r�TFN)r�r�r,)r�Z
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�rX}z"|j
d	j|jt|�j|��WYdd}~XnXWn�tk
�r}z�t|t��r�d
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dt|j|�d
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d|jd|�|j
dt|��|
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        test, the parsed results or where the parse failed. Quick and easy way to
        run a parse expression against a list of sample strings.

        Parameters:
         - tests - a list of separate test strings, or a multiline string of test strings
         - parseAll - (default= ``True``) - flag to pass to :class:`parseString` when running tests
         - comment - (default= ``'#'``) - expression for indicating embedded comments in the test
              string; pass None to disable comment filtering
         - fullDump - (default= ``True``) - dump results as list followed by results names in nested outline;
              if False, only dump nested list
         - printResults - (default= ``True``) prints test output to stdout
         - failureTests - (default= ``False``) indicates if these tests are expected to fail parsing
         - postParse - (default= ``None``) optional callback for successful parse results; called as
              `fn(test_string, parse_results)` and returns a string to be added to the test output

        Returns: a (success, results) tuple, where success indicates that all tests succeeded
        (or failed if ``failureTests`` is True), and the results contain a list of lines of each
        test's output

        Example::

            number_expr = pyparsing_common.number.copy()

            result = number_expr.runTests('''
                # unsigned integer
                100
                # negative integer
                -100
                # float with scientific notation
                6.02e23
                # integer with scientific notation
                1e-12
                ''')
            print("Success" if result[0] else "Failed!")

            result = number_expr.runTests('''
                # stray character
                100Z
                # missing leading digit before '.'
                -.100
                # too many '.'
                3.14.159
                ''', failureTests=True)
            print("Success" if result[0] else "Failed!")

        prints::

            # unsigned integer
            100
            [100]

            # negative integer
            -100
            [-100]

            # float with scientific notation
            6.02e23
            [6.02e+23]

            # integer with scientific notation
            1e-12
            [1e-12]

            Success

            # stray character
            100Z
               ^
            FAIL: Expected end of text (at char 3), (line:1, col:4)

            # missing leading digit before '.'
            -.100
            ^
            FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1)

            # too many '.'
            3.14.159
                ^
            FAIL: Expected end of text (at char 4), (line:1, col:5)

            Success

        Each test string must be on a single line. If you want to test a string that spans multiple
        lines, create a test like this::

            expr.runTest(r"this is a test\n of strings that spans \n 3 lines")

        (Note that this is a raw string literal, you must include the leading 'r'.)
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        Literal('blah').parseString('blahfooblah')  # -> ['blah']
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    For case-insensitive matching, use :class:`CaselessLiteral`.

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     - ``Keyword("if")`` will not; it will only match the leading
       ``'if'`` in ``'if x=1'``, or ``'if(y==2)'``

    Accepts two optional constructor arguments in addition to the
    keyword string:

     - ``identChars`` is a string of characters that would be valid
       identifier characters, defaulting to all alphanumerics + "_" and
       "$"
     - ``caseless`` allows case-insensitive matching, default is ``False``.

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        Keyword("start").parseString("start")  # -> ['start']
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     - ``maxMismatches`` - (``default=1``) maximum number of
       mismatches allowed to count as a match

    The results from a successful parse will contain the matched text
    from the input string and the following named results:

     - ``mismatches`` - a list of the positions within the
       match_string where mismatches were found
     - ``original`` - the original match_string used to compare
       against the input string

    If ``mismatches`` is an empty list, then the match was an exact
    match.

    Example::

        patt = CloseMatch("ATCATCGAATGGA")
        patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']})
        patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1)

        # exact match
        patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']})

        # close match allowing up to 2 mismatches
        patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2)
        patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']})
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    1 (a minimum value < 1 is not valid); the default values for
    ``max`` and ``exact`` are 0, meaning no maximum or exact
    length restriction. An optional ``excludeChars`` parameter can
    list characters that might be found in the input ``bodyChars``
    string; useful to define a word of all printables except for one or
    two characters, for instance.

    :class:`srange` is useful for defining custom character set strings
    for defining ``Word`` expressions, using range notation from
    regular expression character sets.

    A common mistake is to use :class:`Word` to match a specific literal
    string, as in ``Word("Address")``. Remember that :class:`Word`
    uses the string argument to define *sets* of matchable characters.
    This expression would match "Add", "AAA", "dAred", or any other word
    made up of the characters 'A', 'd', 'r', 'e', and 's'. To match an
    exact literal string, use :class:`Literal` or :class:`Keyword`.

    pyparsing includes helper strings for building Words:

     - :class:`alphas`
     - :class:`nums`
     - :class:`alphanums`
     - :class:`hexnums`
     - :class:`alphas8bit` (alphabetic characters in ASCII range 128-255
       - accented, tilded, umlauted, etc.)
     - :class:`punc8bit` (non-alphabetic characters in ASCII range
       128-255 - currency, symbols, superscripts, diacriticals, etc.)
     - :class:`printables` (any non-whitespace character)

    Example::

        # a word composed of digits
        integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9"))

        # a word with a leading capital, and zero or more lowercase
        capital_word = Word(alphas.upper(), alphas.lower())

        # hostnames are alphanumeric, with leading alpha, and '-'
        hostname = Word(alphas, alphanums+'-')

        # roman numeral (not a strict parser, accepts invalid mix of characters)
        roman = Word("IVXLCDM")

        # any string of non-whitespace characters, except for ','
        csv_value = Word(printables, excludeChars=",")
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    Example::

        realnum = Regex(r"[+-]?\d+\.\d*")
        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
        # ref: https://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
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Regex.__str__csl�jrtjdtdd�t���jr@t��r@tjdtdd�t���jrT�fdd�}n��fdd�}�j|�S)a�
        Return Regex with an attached parse action to transform the parsed
        result as if called using `re.sub(expr, repl, string) <https://docs.python.org/3/library/re.html#re.sub>`_.

        Example::

            make_html = Regex(r"(\w+):(.*?):").sub(r"<\1>\2</\1>")
            print(make_html.transformString("h1:main title:"))
            # prints "<h1>main title</h1>"
        z-cannot use sub() with Regex(asGroupList=True)r�)r�z9cannot use sub() with a callable with Regex(asMatch=True)cs|dj��S)Nr)�expand)r�)�replrrr�3szRegex.sub.<locals>.pacs�jj�|d�S)Nr)r�r�)r�)r<r�rrr�6s)r4r�r�r��SyntaxErrorr5�callabler�)r�r<r�r)r<r�rr�s

z	Regex.sub)rFF)T)T)T)rrr
r�r�r�r&r3r�r�r6r7r�r�rrr)rirr6�s
,

	
	cs8eZdZdZd�fdd�	Zddd�Z�fd	d
�Z�ZS)
r4a+
    Token for matching strings that are delimited by quoting characters.

    Defined with the following parameters:

        - quoteChar - string of one or more characters defining the
          quote delimiting string
        - escChar - character to escape quotes, typically backslash
          (default= ``None`` )
        - escQuote - special quote sequence to escape an embedded quote
          string (such as SQL's ``""`` to escape an embedded ``"``)
          (default= ``None`` )
        - multiline - boolean indicating whether quotes can span
          multiple lines (default= ``False`` )
        - unquoteResults - boolean indicating whether the matched text
          should be unquoted (default= ``True`` )
        - endQuoteChar - string of one or more characters defining the
          end of the quote delimited string (default= ``None``  => same as
          quoteChar)
        - convertWhitespaceEscapes - convert escaped whitespace
          (``'\t'``, ``'\n'``, etc.) to actual whitespace
          (default= ``True`` )

    Example::

        qs = QuotedString('"')
        print(qs.searchString('lsjdf "This is the quote" sldjf'))
        complex_qs = QuotedString('{{', endQuoteChar='}}')
        print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf'))
        sql_qs = QuotedString('"', escQuote='""')
        print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf'))

    prints::

        [['This is the quote']]
        [['This is the "quote"']]
        [['This is the quote with "embedded" quotes']]
    NFTcsNtt��j�|j�}|s0tjdtdd�t��|dkr>|}n"|j�}|s`tjdtdd�t��|�_t	|��_
|d�_|�_t	|��_
|�_|�_|�_|�_|r�tjtjB�_dtj�j�t�jd�|dk	r�t|�p�df�_n<d�_dtj�j�t�jd�|dk	�rt|��pdf�_t	�j�d	k�rp�jd
dj�fdd
�tt	�j�d	dd�D��d7_|�r��jdtj|�7_|�r��jdtj|�7_tj�j�d�_�jdtj�j�7_ytj�j�j��_�j�_Wn0tjk
�r&tjd�jtdd��YnXt ���_!d�j!�_"d�_#d�_$dS)Nz$quoteChar cannot be the empty stringr�)r�z'endQuoteChar cannot be the empty stringrz%s(?:[^%s%s]r�z%s(?:[^%s\n\r%s]r�z|(?:z)|(?:c3s4|],}dtj�jd|��t�j|�fVqdS)z%s[^%s]N)r�r%�endQuoteCharr#)r�r�)r�rrr��sz(QuotedString.__init__.<locals>.<genexpr>�)z|(?:%s)z|(?:%s.)z(.)z)*%sz$invalid pattern (%s) passed to Regexz	Expected FTr�)%r�r4r�r�r�r�r�r=�	quoteCharr��quoteCharLen�firstQuoteCharr?�endQuoteCharLen�escChar�escQuote�unquoteResults�convertWhitespaceEscapesr��	MULTILINE�DOTALLr0r%r#r/r�r�escCharReplacePatternr&r$r1r2r�r�r�r�r|)r�rArErFZ	multilinerGr?rH)ri)r�rr�asf




6

zQuotedString.__init__c	Cs�|||jkr|jj||�pd}|s4t|||j|��|j�}|j�}|jr�||j|j	�}t
|t�r�d|kr�|jr�ddddd�}x |j
�D]\}}|j||�}q�W|jr�tj|jd|�}|jr�|j|j|j�}||fS)N�\�	r���
)z\tz\nz\fz\rz\g<1>)rCr�rr.r�r*r+rGrBrDr�r�rHrr�rEr�rKrFr?)	r�rQr�r�rr�Zws_mapZwslitZwscharrrrr��s( 
zQuotedString.parseImplcsFytt|�j�Stk
r"YnX|jdkr@d|j|jf|_|jS)Nz.quoted string, starting with %s ending with %s)r�r4r�rlrvrAr?)r�)rirrr��s
zQuotedString.__str__)NNFTNT)T)rrr
r�r�r�r�rrr)rirr4:s&A
#cs8eZdZdZd�fdd�	Zddd�Z�fd	d
�Z�ZS)
ra�Token for matching words composed of characters *not* in a given
    set (will include whitespace in matched characters if not listed in
    the provided exclusion set - see example). Defined with string
    containing all disallowed characters, and an optional minimum,
    maximum, and/or exact length.  The default value for ``min`` is
    1 (a minimum value < 1 is not valid); the default values for
    ``max`` and ``exact`` are 0, meaning no maximum or exact
    length restriction.

    Example::

        # define a comma-separated-value as anything that is not a ','
        csv_value = CharsNotIn(',')
        print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213"))

    prints::

        ['dkls', 'lsdkjf', 's12 34', '@!#', '213']
    r�rcs�tt|�j�d|_||_|dkr*td��||_|dkr@||_nt|_|dkrZ||_||_t	|�|_
d|j
|_|jdk|_d|_
dS)NFr�z)cannot specify a minimum length < 1; use z=Optional(CharsNotIn()) if zero-length char group is permittedrz	Expected zfcannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted)r�rr�ry�notCharsr�r r!rr�r�r�r|r�)r�rPr'r(r))rirrr��s$
zCharsNotIn.__init__TcCs�|||jkrt|||j|��|}|d7}|j}t||jt|��}x ||krd|||krd|d7}qFW|||jkr�t|||j|��||||�fS)Nr�)rPr.r�r'r!r�r )r�rQr�r�rZnotchars�maxlenrrrr��s
zCharsNotIn.parseImplcsdytt|�j�Stk
r"YnX|jdkr^t|j�dkrRd|jdd�|_nd|j|_|jS)Nr,z
!W:(%s...)z!W:(%s))r�rr�rlrvr�rP)r�)rirrr�
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zCharsNotIn.__str__)r�rr)T)rrr
r�r�r�r�rrr)rirr�s
cs`eZdZdZdddddddd	d
ddd
dddddddddddd�Zd"�fdd�	Zd#d d!�Z�ZS)$r=a�Special matching class for matching whitespace.  Normally,
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    ``max``, and ``exact`` arguments, as defined for the
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    z<SP>z<TAB>z<LF>z<CR>z<FF>z<NBSP>z<OGHAM_SPACE_MARK>z<MONGOLIAN_VOWEL_SEPARATOR>z	<EN_QUAD>z	<EM_QUAD>z
<EN_SPACE>z
<EM_SPACE>z<THREE-PER-EM_SPACE>z<FOUR-PER-EM_SPACE>z<SIX-PER-EM_SPACE>z<FIGURE_SPACE>z<PUNCTUATION_SPACE>z<THIN_SPACE>z<HAIR_SPACE>z<ZERO_WIDTH_SPACE>z<NNBSP>z<MMSP>z<IDEOGRAPHIC_SPACE>)r�rMr�rOrNzuA0zu80zu80Euu0uu1uu2uu3uu4uu5uu6uu7uu8uu9uuAuuBuuFuuFuuÀ0� 	
r�rcs�tt��j�|�_�jdj�fdd��jD���djdd��jD���_d�_d�j�_	|�_
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sz!White.__init__.<locals>.<genexpr>css|]}tj|VqdS)N)r=�	whiteStrs)r�r�rrrr�E
sTz	Expected r)
r�r=r�rSr�r�rzr�r|r�r r!r)r�Zwsr'r(r))ri)r�rr�@
s zWhite.__init__TcCs�|||jkrt|||j|��|}|d7}||j}t|t|��}x"||krd|||jkrd|d7}qDW|||jkr�t|||j|��||||�fS)Nr�)rSr.r�r!r'r�r )r�rQr�r�rrrrrr�T
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zWhite.parseImpl)rRr�rr)T)rrr
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r�rrr)rirrUd
srUcs2eZdZdZ�fdd�Zdd�Zd	dd�Z�ZS)
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szGoToColumn.__init__cCs`t||�|jkr\t|�}|jr*|j||�}x0||krZ||j�rZt||�|jkrZ|d7}q,W|S)Nr�)rIr�r~r��isspace)r�rQr�r�rrrr�s
s&zGoToColumn.preParseTcCsDt||�}||jkr"t||d|��||j|}|||�}||fS)NzText not in expected column)rIr.)r�rQr�r�ZthiscolZnewlocr�rrrr�|
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zGoToColumn.parseImpl)T)rrr
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        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
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    prints::

        ['AAA', ' this line']
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szLineEnd.__init__TcCsb|t|�kr6||dkr$|ddfSt|||j|��n(|t|�krN|dgfSt|||j|��dS)Nr�r�)r�r.r�)r�rQr�r�rrrr��
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szStringStart.__init__TcCs0|dkr(||j|d�kr(t|||j|��|gfS)Nr)r�r.r�)r�rQr�r�rrrr��
szStringStart.parseImpl)T)rrr
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szStringEnd.__init__TcCs^|t|�krt|||j|��n<|t|�kr6|dgfS|t|�krJ|gfSt|||j|��dS)Nr�)r�r.r�)r�rQr�r�rrrr��
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scs.eZdZdZef�fdd�	Zddd�Z�ZS)r@ayMatches if the current position is at the beginning of a Word,
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zWordStart.parseImpl)T)rrr
r�rfr�r�rrr)rirr@�
scs.eZdZdZef�fdd�	Zddd�Z�ZS)r?a_Matches if the current position is at the end of a Word, and is
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scsveZdZdZd�fdd�	Zdd�Zdd�Zd	d
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d�Z	�fdd�Z
gfdd�Z�fdd�Z�Z
S)r/z]Abstract subclass of ParserElement, for combining and
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    Fcs�tt|�j|�t|t�r"t|�}t|t�r<tj|�g|_	nht|t
�rxt|�}tdd�|D��rlttj|�}t|�|_	n,yt|�|_	Wnt
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zParseExpression.__init__cCs
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zParseExpression.leaveWhitespacecszt|t�rF||jkrvtt|�j|�xP|jD]}|j|jd�q,Wn0tt|�j|�x|jD]}|j|jd�q^W|S)Nr�r�r�)r�r:r~r�r/r�rY)r�r&r�)rirrr�-s

zParseExpression.ignorecsLytt|�j�Stk
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zParseExpression.__str__cs0tt|�j�x|jD]}|j�qWt|j�dk�r|jd}t||j�r�|jr�|jdkr�|j	r�|jdd�|jdg|_d|_
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|j|jO_|j|jO_dt
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zParseExpression.streamlinecCs:|dd�|g}x|jD]}|j|�qW|jg�dS)N)rYr�r�)r�r��tmpr�rrrr�eszParseExpression.validatecs$tt|�j�}dd�|jD�|_|S)NcSsg|]}|j��qSr)r%)r�r�rrrr�msz(ParseExpression.copy.<locals>.<listcomp>)r�r/r%rY)r�r�)rirrr%kszParseExpression.copy)F)rrr
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    May also be constructed using the ``'-'`` operator, which will
    suppress backtracking.

    Example::

        integer = Word(nums)
        name_expr = OneOrMore(Word(alphas))

        expr = And([integer("id"),name_expr("name"),integer("age")])
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    cseZdZ�fdd�Z�ZS)zAnd._ErrorStopcs&ttj|�j||�d|_|j�dS)N�-)r�rr�r�r�r�)r�r�r)rirrr��szAnd._ErrorStop.__init__)rrr
r�rrr)rirr��sr�TcsRtt|�j||�tdd�|jD��|_|j|jdj�|jdj|_d|_	dS)Ncss|]}|jVqdS)N)r|)r�r�rrrr��szAnd.__init__.<locals>.<genexpr>rT)
r�rr�rZrYr|r�rzryr�)r�rYr�)rirrr��s
zAnd.__init__cs(tt|�j�tdd�|jD��|_|S)Ncss|]}|jVqdS)N)r|)r�r�rrrr��sz!And.streamline.<locals>.<genexpr>)r�rr�rZrYr|)r�)rirrr��szAnd.streamlinec	Cs|jdj|||dd�\}}d}x�|jdd�D]�}t|tj�rFd}q0|r�y|j|||�\}}Wq�tk
rv�Yq�tk
r�}zd|_tj|��WYdd}~Xq�t	k
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exprtokensr�rrrr��s(z
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zAnd.__iadd__cCs8|dd�|g}x |jD]}|j|�|jsPqWdS)N)rYr�r|)r�r��subRecCheckListr�rrrr��s

zAnd.checkRecursioncCs@t|d�r|jS|jdkr:ddjdd�|jD��d|_|jS)Nr��{r�css|]}t|�VqdS)N)r�)r�r�rrrr��szAnd.__str__.<locals>.<genexpr>�})rr�rvr�rY)r�rrrr��s


 zAnd.__str__)T)T)
rrr
r�rr�r�r�r�r"r�r�rrr)rirrps
csPeZdZdZd�fdd�	Z�fdd�Zddd	�Zd
d�Zdd
�Zdd�Z	�Z
S)r+a�Requires that at least one :class:`ParseExpression` is found. If
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        # construct Or using '^' operator

        number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums))
        print(number.searchString("123 3.1416 789"))

    prints::

        [['123'], ['3.1416'], ['789']]
    Fcs:tt|�j||�|jr0tdd�|jD��|_nd|_dS)Ncss|]}|jVqdS)N)r|)r�r�rrrr��szOr.__init__.<locals>.<genexpr>T)r�r+r�rYrCr|)r�rYr�)rirrr��szOr.__init__cs.tt|�j�tjr*tdd�|jD��|_|S)Ncss|]}|jVqdS)N)rx)r�r�rrrr��sz Or.streamline.<locals>.<genexpr>)r�r+r�r�collect_all_And_tokensrCrYrx)r�)rirrr��sz
Or.streamlineTcCsTd}d}g}x�|jD]�}y|j||�}Wnvtk
rd}	z d|	_|	j|krT|	}|	j}WYdd}	~	Xqtk
r�t|�|kr�t|t|�|j|�}t|�}YqX|j||f�qW|�r*|j	dd�d�x`|D]X\}
}y|j
|||�Stk
�r$}	z"d|	_|	j|k�r|	}|	j}WYdd}	~	Xq�Xq�W|dk	�rB|j|_|�nt||d|��dS)Nr�cSs
|dS)Nrr)�xrrrr��szOr.parseImpl.<locals>.<lambda>)rz no defined alternatives to matchr�)rYr�r.r�r�r�r�r�r��sortr�r�)r�rQr�r��	maxExcLoc�maxExceptionr�r�Zloc2r��_rrrr��s<

zOr.parseImplcCst|t�rtj|�}|j|�S)N)r�r�r3rrr�)r�r&rrr�__ixor__s

zOr.__ixor__cCs@t|d�r|jS|jdkr:ddjdd�|jD��d|_|jS)Nr�r_z ^ css|]}t|�VqdS)N)r�)r�r�rrrr�szOr.__str__.<locals>.<genexpr>r`)rr�rvr�rY)r�rrrr�s


 z
Or.__str__cCs0|dd�|g}x|jD]}|j|�qWdS)N)rYr�)r�r�r^r�rrrr�szOr.checkRecursion)F)T)rrr
r�r�r�r�rgr�r�rrr)rirr+�s
&	csPeZdZdZd�fdd�	Z�fdd�Zddd	�Zd
d�Zdd
�Zdd�Z	�Z
S)r%a�Requires that at least one :class:`ParseExpression` is found. If
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    match. May be constructed using the ``'|'`` operator.

    Example::

        # construct MatchFirst using '|' operator

        # watch the order of expressions to match
        number = Word(nums) | Combine(Word(nums) + '.' + Word(nums))
        print(number.searchString("123 3.1416 789")) #  Fail! -> [['123'], ['3'], ['1416'], ['789']]

        # put more selective expression first
        number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums)
        print(number.searchString("123 3.1416 789")) #  Better -> [['123'], ['3.1416'], ['789']]
    Fcs:tt|�j||�|jr0tdd�|jD��|_nd|_dS)Ncss|]}|jVqdS)N)r|)r�r�rrrr�/sz&MatchFirst.__init__.<locals>.<genexpr>T)r�r%r�rYrCr|)r�rYr�)rirrr�,szMatchFirst.__init__cs.tt|�j�tjr*tdd�|jD��|_|S)Ncss|]}|jVqdS)N)rx)r�r�rrrr�6sz(MatchFirst.streamline.<locals>.<genexpr>)r�r%r�rrarCrYrx)r�)rirrr�3szMatchFirst.streamlineTc	Cs�d}d}x�|jD]�}y|j|||�}|Stk
r\}z|j|krL|}|j}WYdd}~Xqtk
r�t|�|kr�t|t|�|j|�}t|�}YqXqW|dk	r�|j|_|�nt||d|��dS)Nr�z no defined alternatives to matchr�)rYr�r.r�r�r�r�r�)	r�rQr�r�rdrer�r�r�rrrr�9s$
zMatchFirst.parseImplcCst|t�rtj|�}|j|�S)N)r�r�r3rrr�)r�r&rrr�__ior__Qs

zMatchFirst.__ior__cCs@t|d�r|jS|jdkr:ddjdd�|jD��d|_|jS)Nr�r_z | css|]}t|�VqdS)N)r�)r�r�rrrr�[sz%MatchFirst.__str__.<locals>.<genexpr>r`)rr�rvr�rY)r�rrrr�Vs


 zMatchFirst.__str__cCs0|dd�|g}x|jD]}|j|�qWdS)N)rYr�)r�r�r^r�rrrr�_szMatchFirst.checkRecursion)F)T)rrr
r�r�r�r�rhr�r�rrr)rirr%s
	csHeZdZdZd
�fdd�	Z�fdd�Zddd�Zd	d
�Zdd�Z�Z	S)rasRequires all given :class:`ParseExpression` s to be found, but in
    any order. Expressions may be separated by whitespace.

    May be constructed using the ``'&'`` operator.

    Example::

        color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN")
        shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON")
        integer = Word(nums)
        shape_attr = "shape:" + shape_type("shape")
        posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn")
        color_attr = "color:" + color("color")
        size_attr = "size:" + integer("size")

        # use Each (using operator '&') to accept attributes in any order
        # (shape and posn are required, color and size are optional)
        shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr)

        shape_spec.runTests('''
            shape: SQUARE color: BLACK posn: 100, 120
            shape: CIRCLE size: 50 color: BLUE posn: 50,80
            color:GREEN size:20 shape:TRIANGLE posn:20,40
            '''
            )

    prints::

        shape: SQUARE color: BLACK posn: 100, 120
        ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']]
        - color: BLACK
        - posn: ['100', ',', '120']
          - x: 100
          - y: 120
        - shape: SQUARE


        shape: CIRCLE size: 50 color: BLUE posn: 50,80
        ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']]
        - color: BLUE
        - posn: ['50', ',', '80']
          - x: 50
          - y: 80
        - shape: CIRCLE
        - size: 50


        color: GREEN size: 20 shape: TRIANGLE posn: 20,40
        ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']]
        - color: GREEN
        - posn: ['20', ',', '40']
          - x: 20
          - y: 40
        - shape: TRIANGLE
        - size: 20
    Tcs>tt|�j||�tdd�|jD��|_d|_d|_d|_dS)Ncss|]}|jVqdS)N)r|)r�r�rrrr��sz Each.__init__.<locals>.<genexpr>T)	r�rr�rZrYr|ry�initExprGroupsrx)r�rYr�)rirrr��s
z
Each.__init__cs(tt|�j�tdd�|jD��|_|S)Ncss|]}|jVqdS)N)r|)r�r�rrrr��sz"Each.streamline.<locals>.<genexpr>)r�rr�rZrYr|)r�)rirrr��szEach.streamlinec
s�|jr�tdd�|jD��|_dd�|jD�}dd�|jD�}|||_dd�|jD�|_dd�|jD�|_dd�|jD�|_|j|j7_d	|_|}|jdd�}|jdd��g}d
}	x�|	�rp|�|j|j}
g}x~|
D]v}y|j||�}Wn t	k
�r|j
|�Yq�X|j
|jjt|�|��||k�rD|j
|�q�|�kr�j
|�q�Wt|�t|
�kr�d	}	q�W|�r�djdd�|D��}
t	||d
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��|�fdd�|jD�7}g}x*|D]"}|j|||�\}}|j
|��q�Wt|tg��}||fS)Ncss&|]}t|t�rt|j�|fVqdS)N)r�r*r�rR)r�r�rrrr��sz!Each.parseImpl.<locals>.<genexpr>cSsg|]}t|t�r|j�qSr)r�r*rR)r�r�rrrr��sz"Each.parseImpl.<locals>.<listcomp>cSs"g|]}|jrt|t�r|�qSr)r|r�r*)r�r�rrrr��scSsg|]}t|t�r|j�qSr)r�rArR)r�r�rrrr��scSsg|]}t|t�r|j�qSr)r�r(rR)r�r�rrrr��scSs g|]}t|tttf�s|�qSr)r�r*rAr()r�r�rrrr��sFTz, css|]}t|�VqdS)N)r�)r�r�rrrr��sz*Missing one or more required elements (%s)cs$g|]}t|t�r|j�kr|�qSr)r�r*rR)r�r�)�tmpOptrrr��s)rir�rYZopt1mapZ	optionalsZmultioptionalsZ
multirequiredZrequiredr�r.r�r�r��remover�r�r��sumr1)r�rQr�r�Zopt1Zopt2ZtmpLocZtmpReqdZ
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zEach.parseImplcCs@t|d�r|jS|jdkr:ddjdd�|jD��d|_|jS)Nr�r_z & css|]}t|�VqdS)N)r�)r�r�rrrr��szEach.__str__.<locals>.<genexpr>r`)rr�rvr�rY)r�rrrr��s


 zEach.__str__cCs0|dd�|g}x|jD]}|j|�qWdS)N)rYr�)r�r�r^r�rrrr��szEach.checkRecursion)T)T)
rrr
r�r�r�r�r�r�rrr)rirres8
1	csleZdZdZd�fdd�	Zddd�Zdd	�Z�fd
d�Z�fdd
�Zdd�Z	gfdd�Z
�fdd�Z�ZS)r-zfAbstract subclass of :class:`ParserElement`, for combining and
    post-processing parsed tokens.
    Fcs�tt|�j|�t|t�r@ttjt�r2tj|�}ntjt	|��}||_
d|_|dk	r�|j|_|j
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|j|j�|j|_|j|_|j|_|jj|j�dS)N)r�r-r�r�r��
issubclassr3rrr;r#rRrvr�r|r�rzryrxr�r~r#)r�rRr�)rirrr��s
zParseElementEnhance.__init__TcCs2|jdk	r|jj|||dd�Std||j|��dS)NF)r�r�)rRr�r.r�)r�rQr�r�rrrr�s
zParseElementEnhance.parseImplcCs*d|_|jj�|_|jdk	r&|jj�|S)NF)ryrRr%r�)r�rrrr�s


z#ParseElementEnhance.leaveWhitespacecsrt|t�rB||jkrntt|�j|�|jdk	rn|jj|jd�n,tt|�j|�|jdk	rn|jj|jd�|S)Nr�r�r�)r�r:r~r�r-r�rR)r�r&)rirrr�
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zParseElementEnhance.ignorecs&tt|�j�|jdk	r"|jj�|S)N)r�r-r�rR)r�)rirrr�s

zParseElementEnhance.streamlinecCsB||krt||g��|dd�|g}|jdk	r>|jj|�dS)N)r5rRr�)r�r�r^rrrr�s

z"ParseElementEnhance.checkRecursioncCs6|dd�|g}|jdk	r(|jj|�|jg�dS)N)rRr�r�)r�r�r[rrrr�&s
zParseElementEnhance.validatecsVytt|�j�Stk
r"YnX|jdkrP|jdk	rPd|jjt|j�f|_|jS)Nz%s:(%s))	r�r-r�rlrvrRrirr�)r�)rirrr�,szParseElementEnhance.__str__)F)T)
rrr
r�r�r�r�r�r�r�r�r�rrr)rirr-�s
cs*eZdZdZ�fdd�Zddd�Z�ZS)rabLookahead matching of the given parse expression.
    ``FollowedBy`` does *not* advance the parsing position within
    the input string, it only verifies that the specified parse
    expression matches at the current position.  ``FollowedBy``
    always returns a null token list. If any results names are defined
    in the lookahead expression, those *will* be returned for access by
    name.

    Example::

        # use FollowedBy to match a label only if it is followed by a ':'
        data_word = Word(alphas)
        label = data_word + FollowedBy(':')
        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))

        OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint()

    prints::

        [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']]
    cstt|�j|�d|_dS)NT)r�rr�r|)r�rR)rirrr�MszFollowedBy.__init__TcCs(|jj|||d�\}}|dd�=||fS)N)r�)rRr�)r�rQr�r�rfr�rrrr�Qs
zFollowedBy.parseImpl)T)rrr
r�r�r�rrr)rirr7scs,eZdZdZd	�fdd�	Zd
dd�Z�ZS)r$apLookbehind matching of the given parse expression.
    ``PrecededBy`` does not advance the parsing position within the
    input string, it only verifies that the specified parse expression
    matches prior to the current position.  ``PrecededBy`` always
    returns a null token list, but if a results name is defined on the
    given expression, it is returned.

    Parameters:

     - expr - expression that must match prior to the current parse
       location
     - retreat - (default= ``None``) - (int) maximum number of characters
       to lookbehind prior to the current parse location

    If the lookbehind expression is a string, Literal, Keyword, or
    a Word or CharsNotIn with a specified exact or maximum length, then
    the retreat parameter is not required. Otherwise, retreat must be
    specified to give a maximum number of characters to look back from
    the current parse position for a lookbehind match.

    Example::

        # VB-style variable names with type prefixes
        int_var = PrecededBy("#") + pyparsing_common.identifier
        str_var = PrecededBy("$") + pyparsing_common.identifier

    Ncs�tt|�j|�|j�j�|_d|_d|_d|_t|t	�rJt
|�}d|_nVt|ttf�rf|j
}d|_n:t|ttf�r�|jtkr�|j}d|_nt|t�r�d}d|_||_dt	|�|_d|_dS)NTFrznot preceded by )r�r$r�rRr�r|r�r)r�r�r�r#r rr>rr!rrU�retreatr�ry)r�rRro)rirrr�ss(

zPrecededBy.__init__rTcCs�|jr<||jkrt|||j��||j}|jj||�\}}n�|jt�}|d|�}t|||j�}	xdtdt||jd��D]F}
y|j|||
�\}}Wn&t	k
r�}z
|}	WYdd}~XqzXPqzW|	�|dd�=||fS)Nr�)
r)ror.r�rRr�r8rr'r,)r�rQr�r�rrfr�Z	test_exprZinstring_sliceZ	last_exprr)Zpberrrr��s"


zPrecededBy.parseImpl)N)rT)rrr
r�r�r�rrr)rirr$Wscs2eZdZdZ�fdd�Zd	dd�Zdd�Z�ZS)
r'a�Lookahead to disallow matching with the given parse expression.
    ``NotAny`` does *not* advance the parsing position within the
    input string, it only verifies that the specified parse expression
    does *not* match at the current position.  Also, ``NotAny`` does
    *not* skip over leading whitespace. ``NotAny`` always returns
    a null token list.  May be constructed using the '~' operator.

    Example::

        AND, OR, NOT = map(CaselessKeyword, "AND OR NOT".split())

        # take care not to mistake keywords for identifiers
        ident = ~(AND | OR | NOT) + Word(alphas)
        boolean_term = Optional(NOT) + ident

        # very crude boolean expression - to support parenthesis groups and
        # operation hierarchy, use infixNotation
        boolean_expr = boolean_term + ZeroOrMore((AND | OR) + boolean_term)

        # integers that are followed by "." are actually floats
        integer = Word(nums) + ~Char(".")
    cs0tt|�j|�d|_d|_dt|j�|_dS)NFTzFound unwanted token, )r�r'r�ryr|r�rRr�)r�rR)rirrr��szNotAny.__init__TcCs&|jj||�rt|||j|��|gfS)N)rRr�r.r�)r�rQr�r�rrrr��szNotAny.parseImplcCs4t|d�r|jS|jdkr.dt|j�d|_|jS)Nr�z~{r`)rr�rvr�rR)r�rrrr��s


zNotAny.__str__)T)rrr
r�r�r�r�rrr)rirr'�s
cs(eZdZd�fdd�	Zddd�Z�ZS)	�_MultipleMatchNcsFtt|�j|�d|_|}t|t�r.tj|�}|dk	r<|nd|_dS)NT)	r�rpr�rxr�r�r3rr�	not_ender)r�rR�stopOnZender)rirrr��s

z_MultipleMatch.__init__TcCs�|jj}|j}|jdk	}|r$|jj}|r2|||�||||dd�\}}yZ|j}	xJ|rb|||�|	rr|||�}
n|}
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|�\}}|s�|j�rT||7}qTWWnttfk
r�YnX||fS)NF)r�)	rRr�r�rqr�r~rr.r�)r�rQr�r�Zself_expr_parseZself_skip_ignorablesZcheck_enderZ
try_not_enderr�ZhasIgnoreExprsr�Z	tmptokensrrrr��s,



z_MultipleMatch.parseImpl)N)T)rrr
r�r�rrr)rirrp�srpc@seZdZdZdd�ZdS)r(ajRepetition of one or more of the given expression.

    Parameters:
     - expr - expression that must match one or more times
     - stopOn - (default= ``None``) - expression for a terminating sentinel
          (only required if the sentinel would ordinarily match the repetition
          expression)

    Example::

        data_word = Word(alphas)
        label = data_word + FollowedBy(':')
        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))

        text = "shape: SQUARE posn: upper left color: BLACK"
        OneOrMore(attr_expr).parseString(text).pprint()  # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']]

        # use stopOn attribute for OneOrMore to avoid reading label string as part of the data
        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
        OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']]

        # could also be written as
        (attr_expr * (1,)).parseString(text).pprint()
    cCs4t|d�r|jS|jdkr.dt|j�d|_|jS)Nr�r_z}...)rr�rvr�rR)r�rrrr�s


zOneOrMore.__str__N)rrr
r�r�rrrrr(�scs8eZdZdZd
�fdd�	Zd�fdd�	Zdd	�Z�ZS)rAakOptional repetition of zero or more of the given expression.

    Parameters:
     - expr - expression that must match zero or more times
     - stopOn - (default= ``None``) - expression for a terminating sentinel
          (only required if the sentinel would ordinarily match the repetition
          expression)

    Example: similar to :class:`OneOrMore`
    Ncstt|�j||d�d|_dS)N)rrT)r�rAr�r|)r�rRrr)rirrr�"szZeroOrMore.__init__Tcs6ytt|�j|||�Sttfk
r0|gfSXdS)N)r�rAr�r.r�)r�rQr�r�)rirrr�&szZeroOrMore.parseImplcCs4t|d�r|jS|jdkr.dt|j�d|_|jS)Nr�r.z]...)rr�rvr�rR)r�rrrr�,s


zZeroOrMore.__str__)N)T)rrr
r�r�r�r�rrr)rirrAs
c@s eZdZdd�ZeZdd�ZdS)�
_NullTokencCsdS)NFr)r�rrrr6sz_NullToken.__bool__cCsdS)Nr�r)r�rrrr�9sz_NullToken.__str__N)rrr
rrKr�rrrrrs5srscs6eZdZdZef�fdd�	Zd	dd�Zdd�Z�ZS)
r*aGOptional matching of the given expression.

    Parameters:
     - expr - expression that must match zero or more times
     - default (optional) - value to be returned if the optional expression is not found.

    Example::

        # US postal code can be a 5-digit zip, plus optional 4-digit qualifier
        zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4)))
        zip.runTests('''
            # traditional ZIP code
            12345

            # ZIP+4 form
            12101-0001

            # invalid ZIP
            98765-
            ''')

    prints::

        # traditional ZIP code
        12345
        ['12345']

        # ZIP+4 form
        12101-0001
        ['12101-0001']

        # invalid ZIP
        98765-
             ^
        FAIL: Expected end of text (at char 5), (line:1, col:6)
    cs.tt|�j|dd�|jj|_||_d|_dS)NF)r�T)r�r*r�rRrxrr|)r�rRr)rirrr�bs
zOptional.__init__TcCszy|jj|||dd�\}}WnTttfk
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zOptional.parseImplcCs4t|d�r|jS|jdkr.dt|j�d|_|jS)Nr�r.r/)rr�rvr�rR)r�rrrr�vs


zOptional.__str__)T)	rrr
r�rtr�r�r�rrr)rirr*=s$
cs,eZdZdZd	�fdd�	Zd
dd�Z�ZS)r7a�	Token for skipping over all undefined text until the matched
    expression is found.

    Parameters:
     - expr - target expression marking the end of the data to be skipped
     - include - (default= ``False``) if True, the target expression is also parsed
          (the skipped text and target expression are returned as a 2-element list).
     - ignore - (default= ``None``) used to define grammars (typically quoted strings and
          comments) that might contain false matches to the target expression
     - failOn - (default= ``None``) define expressions that are not allowed to be
          included in the skipped test; if found before the target expression is found,
          the SkipTo is not a match

    Example::

        report = '''
            Outstanding Issues Report - 1 Jan 2000

               # | Severity | Description                               |  Days Open
            -----+----------+-------------------------------------------+-----------
             101 | Critical | Intermittent system crash                 |          6
              94 | Cosmetic | Spelling error on Login ('log|n')         |         14
              79 | Minor    | System slow when running too many reports |         47
            '''
        integer = Word(nums)
        SEP = Suppress('|')
        # use SkipTo to simply match everything up until the next SEP
        # - ignore quoted strings, so that a '|' character inside a quoted string does not match
        # - parse action will call token.strip() for each matched token, i.e., the description body
        string_data = SkipTo(SEP, ignore=quotedString)
        string_data.setParseAction(tokenMap(str.strip))
        ticket_expr = (integer("issue_num") + SEP
                      + string_data("sev") + SEP
                      + string_data("desc") + SEP
                      + integer("days_open"))

        for tkt in ticket_expr.searchString(report):
            print tkt.dump()

    prints::

        ['101', 'Critical', 'Intermittent system crash', '6']
        - days_open: 6
        - desc: Intermittent system crash
        - issue_num: 101
        - sev: Critical
        ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14']
        - days_open: 14
        - desc: Spelling error on Login ('log|n')
        - issue_num: 94
        - sev: Cosmetic
        ['79', 'Minor', 'System slow when running too many reports', '47']
        - days_open: 47
        - desc: System slow when running too many reports
        - issue_num: 79
        - sev: Minor
    FNcs`tt|�j|�||_d|_d|_||_d|_t|t	�rFt
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�fdd�Z�ZS)ra_Forward declaration of an expression to be defined later -
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    Note: take care when assigning to ``Forward`` not to overlook
    precedence of operators.

    Specifically, '|' has a lower precedence than '<<', so that::

        fwdExpr << a | b | c

    will actually be evaluated as::

        (fwdExpr << a) | b | c

    thereby leaving b and c out as parseable alternatives.  It is recommended that you
    explicitly group the values inserted into the ``Forward``::

        fwdExpr << (a | b | c)

    Converting to use the '<<=' operator instead will avoid this problem.

    See :class:`ParseResults.pprint` for an example of a recursive
    parser created using ``Forward``.
    Ncstt|�j|dd�dS)NF)r�)r�rr�)r�r&)rirrr�szForward.__init__cCsjt|t�rtj|�}||_d|_|jj|_|jj|_|j|jj	�|jj
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zForward.__lshift__cCs||>S)Nr)r�r&rrr�__ilshift__ szForward.__ilshift__cCs
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zForward.streamlinecCs>||kr0|dd�|g}|jdk	r0|jj|�|jg�dS)N)rRr�r�)r�r�r[rrrr�.s

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CsTt|d�r|jS|jjd|_z|jdk	r6t|j�}nd}Wd|`X|jjd|S)Nr�z: ...�Nonez: )rr�rirrRr�)r�Z	retStringrrrr�5s

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zForward.copy)N)
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cs"eZdZdZd�fdd�	Z�ZS)r<zW
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    Fcstt|�j|�d|_dS)NF)r�r<r�rx)r�rRr�)rirrr�RszTokenConverter.__init__)F)rrr
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�fdd�	Z�fdd�Zdd	�Z�ZS)ra�Converter to concatenate all matching tokens to a single string.
    By default, the matching patterns must also be contiguous in the
    input string; this can be disabled by specifying
    ``'adjacent=False'`` in the constructor.

    Example::

        real = Word(nums) + '.' + Word(nums)
        print(real.parseString('3.1416')) # -> ['3', '.', '1416']
        # will also erroneously match the following
        print(real.parseString('3. 1416')) # -> ['3', '.', '1416']

        real = Combine(Word(nums) + '.' + Word(nums))
        print(real.parseString('3.1416')) # -> ['3.1416']
        # no match when there are internal spaces
        print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...)
    r�Tcs8tt|�j|�|r|j�||_d|_||_d|_dS)NT)r�rr�r��adjacentry�
joinStringr�)r�rRr}r|)rirrr�hszCombine.__init__cs(|jrtj||�ntt|�j|�|S)N)r|r3r�r�r)r�r&)rirrr�rszCombine.ignorecCsP|j�}|dd�=|tdj|j|j��g|jd�7}|jrH|j�rH|gS|SdS)Nr�)r�)r%r1r�r0r}r�rwr)r�rQr�r�ZretToksrrrr�ys
"zCombine.postParse)r�T)rrr
r�r�r�r�rrr)rirrVs
cs(eZdZdZ�fdd�Zdd�Z�ZS)ra�Converter to return the matched tokens as a list - useful for
    returning tokens of :class:`ZeroOrMore` and :class:`OneOrMore` expressions.

    Example::

        ident = Word(alphas)
        num = Word(nums)
        term = ident | num
        func = ident + Optional(delimitedList(term))
        print(func.parseString("fn a,b,100"))  # -> ['fn', 'a', 'b', '100']

        func = ident + Group(Optional(delimitedList(term)))
        print(func.parseString("fn a,b,100"))  # -> ['fn', ['a', 'b', '100']]
    cstt|�j|�d|_dS)NT)r�rr�rx)r�rR)rirrr��szGroup.__init__cCs|gS)Nr)r�rQr�r�rrrr��szGroup.postParse)rrr
r�r�r�rrr)rirr�scs(eZdZdZ�fdd�Zdd�Z�ZS)ra?Converter to return a repetitive expression as a list, but also
    as a dictionary. Each element can also be referenced using the first
    token in the expression as its key. Useful for tabular report
    scraping when the first column can be used as a item key.

    Example::

        data_word = Word(alphas)
        label = data_word + FollowedBy(':')
        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))

        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))

        # print attributes as plain groups
        print(OneOrMore(attr_expr).parseString(text).dump())

        # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names
        result = Dict(OneOrMore(Group(attr_expr))).parseString(text)
        print(result.dump())

        # access named fields as dict entries, or output as dict
        print(result['shape'])
        print(result.asDict())

    prints::

        ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap']
        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
        - color: light blue
        - posn: upper left
        - shape: SQUARE
        - texture: burlap
        SQUARE
        {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'}

    See more examples at :class:`ParseResults` of accessing fields by results name.
    cstt|�j|�d|_dS)NT)r�rr�rx)r�rR)rirrr��sz
Dict.__init__cCs�x�t|�D]�\}}t|�dkr q
|d}t|t�rBt|d�j�}t|�dkr^td|�||<q
t|�dkr�t|dt�r�t|d|�||<q
|j�}|d=t|�dks�t|t�r�|j	�r�t||�||<q
t|d|�||<q
W|j
r�|gS|SdS)Nrr�r�r�)r�r�r�r�r�r�r�r1r%rrw)r�rQr�r�r��tokZikeyZ	dictvaluerrrr��s$
zDict.postParse)rrr
r�r�r�rrr)rirr�s&c@s eZdZdZdd�Zdd�ZdS)r:a[Converter for ignoring the results of a parsed expression.

    Example::

        source = "a, b, c,d"
        wd = Word(alphas)
        wd_list1 = wd + ZeroOrMore(',' + wd)
        print(wd_list1.parseString(source))

        # often, delimiters that are useful during parsing are just in the
        # way afterward - use Suppress to keep them out of the parsed output
        wd_list2 = wd + ZeroOrMore(Suppress(',') + wd)
        print(wd_list2.parseString(source))

    prints::

        ['a', ',', 'b', ',', 'c', ',', 'd']
        ['a', 'b', 'c', 'd']

    (See also :class:`delimitedList`.)
    cCsgS)Nr)r�rQr�r�rrrr��szSuppress.postParsecCs|S)Nr)r�rrrr��szSuppress.suppressN)rrr
r�r�r�rrrrr:�sc@s(eZdZdZdd�Zdd�Zdd�ZdS)	r)zDWrapper for parse actions, to ensure they are only called once.
    cCst|�|_d|_dS)NF)rnr>�called)r�Z
methodCallrrrr��s
zOnlyOnce.__init__cCs.|js|j|||�}d|_|St||d��dS)NTr�)rr>r.)r�r�rXr�rrrrr�s
zOnlyOnce.__call__cCs
d|_dS)NF)r)r�rrr�resetszOnlyOnce.resetN)rrr
r�r�r�r�rrrrr)�scs:t����fdd�}y�j|_Wntk
r4YnX|S)aqDecorator for debugging parse actions.

    When the parse action is called, this decorator will print
    ``">> entering method-name(line:<current_source_line>, <parse_location>, <matched_tokens>)"``.
    When the parse action completes, the decorator will print
    ``"<<"`` followed by the returned value, or any exception that the parse action raised.

    Example::

        wd = Word(alphas)

        @traceParseAction
        def remove_duplicate_chars(tokens):
            return ''.join(sorted(set(''.join(tokens))))

        wds = OneOrMore(wd).setParseAction(remove_duplicate_chars)
        print(wds.parseString("slkdjs sld sldd sdlf sdljf"))

    prints::

        >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {}))
        <<leaving remove_duplicate_chars (ret: 'dfjkls')
        ['dfjkls']
    cs��j}|dd�\}}}t|�dkr8|djjd|}tjjd|t||�||f�y�|�}Wn8tk
r�}ztjjd||f��WYdd}~XnXtjjd||f�|S)Nr�r�.z">>entering %s(line: '%s', %d, %r)
z<<leaving %s (exception: %s)
z<<leaving %s (ret: %r)
r\)rr�rir��stderr�writerWrl)ZpaArgsZthisFuncr�rXr�r�r�)r�rr�z#sztraceParseAction.<locals>.z)rnrr�)r�r�r)r�rrr	s
�,FcCs`t|�dt|�dt|�d}|rBt|t||��j|�S|tt|�|�j|�SdS)a�Helper to define a delimited list of expressions - the delimiter
    defaults to ','. By default, the list elements and delimiters can
    have intervening whitespace, and comments, but this can be
    overridden by passing ``combine=True`` in the constructor. If
    ``combine`` is set to ``True``, the matching tokens are
    returned as a single token string, with the delimiters included;
    otherwise, the matching tokens are returned as a list of tokens,
    with the delimiters suppressed.

    Example::

        delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc']
        delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE']
    z [r�z]...N)r�rrAr�r:)rR�delim�combineZdlNamerrrrP9s$csjt����fdd�}|dkr0tt�jdd��}n|j�}|jd�|j|dd�|�jd	t��d
�S)a>Helper to define a counted list of expressions.

    This helper defines a pattern of the form::

        integer expr expr expr...

    where the leading integer tells how many expr expressions follow.
    The matched tokens returns the array of expr tokens as a list - the
    leading count token is suppressed.

    If ``intExpr`` is specified, it should be a pyparsing expression
    that produces an integer value.

    Example::

        countedArray(Word(alphas)).parseString('2 ab cd ef')  # -> ['ab', 'cd']

        # in this parser, the leading integer value is given in binary,
        # '10' indicating that 2 values are in the array
        binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2))
        countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef')  # -> ['ab', 'cd']
    cs.|d}�|r tt�g|��p&tt�>gS)Nr)rrrS)r�rXr�r�)�	arrayExprrRrr�countFieldParseActionfs"z+countedArray.<locals>.countFieldParseActionNcSst|d�S)Nr)r�)r�rrrr�kszcountedArray.<locals>.<lambda>ZarrayLenT)r�z(len) z...)rr>rbr�r%r�r�r�)rRZintExprr�r)r�rRrrLNs
cCs:g}x0|D](}t|t�r(|jt|��q
|j|�q
W|S)N)r�r�r#r�r�)�Lr�r�rrrr�rs

r�cs6t���fdd�}|j|dd��jdt|���S)a4Helper to define an expression that is indirectly defined from
    the tokens matched in a previous expression, that is, it looks for
    a 'repeat' of a previous expression.  For example::

        first = Word(nums)
        second = matchPreviousLiteral(first)
        matchExpr = first + ":" + second

    will match ``"1:1"``, but not ``"1:2"``.  Because this
    matches a previous literal, will also match the leading
    ``"1:1"`` in ``"1:10"``. If this is not desired, use
    :class:`matchPreviousExpr`. Do *not* use with packrat parsing
    enabled.
    csP|rBt|�dkr�|d>qLt|j��}�tdd�|D��>n
�t�>dS)Nr�rcss|]}t|�VqdS)N)r#)r��ttrrrr��szDmatchPreviousLiteral.<locals>.copyTokenToRepeater.<locals>.<genexpr>)r�r�r�rr)r�rXr�Ztflat)�reprr�copyTokenToRepeater�sz1matchPreviousLiteral.<locals>.copyTokenToRepeaterT)r�z(prev) )rr�r�r�)rRr�r)r�rr_{s

csFt��|j�}�|K��fdd�}|j|dd��jdt|���S)aTHelper to define an expression that is indirectly defined from
    the tokens matched in a previous expression, that is, it looks for
    a 'repeat' of a previous expression.  For example::

        first = Word(nums)
        second = matchPreviousExpr(first)
        matchExpr = first + ":" + second

    will match ``"1:1"``, but not ``"1:2"``.  Because this
    matches by expressions, will *not* match the leading ``"1:1"``
    in ``"1:10"``; the expressions are evaluated first, and then
    compared, so ``"1"`` is compared with ``"10"``. Do *not* use
    with packrat parsing enabled.
    cs*t|j����fdd�}�j|dd�dS)Ncs$t|j��}|�kr tddd��dS)Nr�r)r�r�r.)r�rXr�ZtheseTokens)�matchTokensrr�mustMatchTheseTokens�szLmatchPreviousExpr.<locals>.copyTokenToRepeater.<locals>.mustMatchTheseTokensT)r�)r�r�r�)r�rXr�r�)r�)r�rr��sz.matchPreviousExpr.<locals>.copyTokenToRepeaterT)r�z(prev) )rr%r�r�r�)rRZe2r�r)r�rr^�scCs>xdD]}|j|t|�}qW|jdd�}|jdd�}t|�S)Nz\^-]r�z\nrMz\t)r��_bslashr�)r�r�rrrr#�s

r#c
s�|rdd�}dd�}t�ndd�}dd�}t�g}t|t�rF|j�}n$t|t�rZt|�}ntjdt	dd�|stt
�Sd	}x�|t|�d
k�r||}xnt||d
d��D]N\}}	||	|�r�|||d
=Pq�|||	�r�|||d
=|j
||	�|	}Pq�W|d
7}qzW|�r�|�r�yht|�tdj|��k�rXtd
djdd�|D���jdj|��Stdjdd�|D���jdj|��SWn&tk
�r�tjdt	dd�YnXt�fdd�|D��jdj|��S)aHelper to quickly define a set of alternative Literals, and makes
    sure to do longest-first testing when there is a conflict,
    regardless of the input order, but returns
    a :class:`MatchFirst` for best performance.

    Parameters:

     - strs - a string of space-delimited literals, or a collection of
       string literals
     - caseless - (default= ``False``) - treat all literals as
       caseless
     - useRegex - (default= ``True``) - as an optimization, will
       generate a Regex object; otherwise, will generate
       a :class:`MatchFirst` object (if ``caseless=True``, or if
       creating a :class:`Regex` raises an exception)

    Example::

        comp_oper = oneOf("< = > <= >= !=")
        var = Word(alphas)
        number = Word(nums)
        term = var | number
        comparison_expr = term + comp_oper + term
        print(comparison_expr.searchString("B = 12  AA=23 B<=AA AA>12"))

    prints::

        [['B', '=', '12'], ['AA', '=', '23'], ['B', '<=', 'AA'], ['AA', '>', '12']]
    cSs|j�|j�kS)N)r
)r(�brrrr��szoneOf.<locals>.<lambda>cSs|j�j|j��S)N)r
r
)r(r�rrrr��scSs||kS)Nr)r(r�rrrr��scSs
|j|�S)N)r
)r(r�rrrr��sz6Invalid argument to oneOf, expected string or iterabler�)r�rr�Nr�z[%s]css|]}t|�VqdS)N)r#)r��symrrrr�szoneOf.<locals>.<genexpr>z | �|css|]}tj|�VqdS)N)r�r%)r�r�rrrr�sz7Exception creating Regex for oneOf, building MatchFirstc3s|]}�|�VqdS)Nr)r�r�)�parseElementClassrrr�s)rr#r�r�r�rr�r�r�r�r&r�r�r r�r6r�rlr%)
ZstrsrZuseRegexZisequalZmasksZsymbolsr�Zcurrr&r)r�rrc�sL






((cCsttt||���S)a�Helper to easily and clearly define a dictionary by specifying
    the respective patterns for the key and value.  Takes care of
    defining the :class:`Dict`, :class:`ZeroOrMore`, and
    :class:`Group` tokens in the proper order.  The key pattern
    can include delimiting markers or punctuation, as long as they are
    suppressed, thereby leaving the significant key text.  The value
    pattern can include named results, so that the :class:`Dict` results
    can include named token fields.

    Example::

        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
        print(OneOrMore(attr_expr).parseString(text).dump())

        attr_label = label
        attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)

        # similar to Dict, but simpler call format
        result = dictOf(attr_label, attr_value).parseString(text)
        print(result.dump())
        print(result['shape'])
        print(result.shape)  # object attribute access works too
        print(result.asDict())

    prints::

        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
        - color: light blue
        - posn: upper left
        - shape: SQUARE
        - texture: burlap
        SQUARE
        SQUARE
        {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'}
    )rr(r)rrrrrrQs%cCs^t�jdd��}|j�}d|_|d�||d�}|r@dd�}ndd�}|j|�|j|_|S)	a�Helper to return the original, untokenized text for a given
    expression.  Useful to restore the parsed fields of an HTML start
    tag into the raw tag text itself, or to revert separate tokens with
    intervening whitespace back to the original matching input text. By
    default, returns astring containing the original parsed text.

    If the optional ``asString`` argument is passed as
    ``False``, then the return value is
    a :class:`ParseResults` containing any results names that
    were originally matched, and a single token containing the original
    matched text from the input string.  So if the expression passed to
    :class:`originalTextFor` contains expressions with defined
    results names, you must set ``asString`` to ``False`` if you
    want to preserve those results name values.

    Example::

        src = "this is test <b> bold <i>text</i> </b> normal text "
        for tag in ("b","i"):
            opener,closer = makeHTMLTags(tag)
            patt = originalTextFor(opener + SkipTo(closer) + closer)
            print(patt.searchString(src)[0])

    prints::

        ['<b> bold <i>text</i> </b>']
        ['<i>text</i>']
    cSs|S)Nr)r�r�r�rrrr�Rsz!originalTextFor.<locals>.<lambda>F�_original_start�
_original_endcSs||j|j�S)N)r�r�)r�rXr�rrrr�WscSs&||jd�|jd��g|dd�<dS)Nr�r�)r)r�rXr�rrr�extractTextYsz$originalTextFor.<locals>.extractText)rr�r%r�r~)rRZasStringZ	locMarkerZendlocMarker�	matchExprr�rrrrw5s

cCst|�jdd��S)zkHelper to undo pyparsing's default grouping of And expressions,
    even if all but one are non-empty.
    cSs|dS)Nrr)r�rrrr�cszungroup.<locals>.<lambda>)r<r�)rRrrrrx_scCs4t�jdd��}t|d�|d�|j�j�d��S)a�Helper to decorate a returned token with its starting and ending
    locations in the input string.

    This helper adds the following results names:

     - locn_start = location where matched expression begins
     - locn_end = location where matched expression ends
     - value = the actual parsed results

    Be careful if the input text contains ``<TAB>`` characters, you
    may want to call :class:`ParserElement.parseWithTabs`

    Example::

        wd = Word(alphas)
        for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"):
            print(match)

    prints::

        [[0, 'ljsdf', 5]]
        [[8, 'lksdjjf', 15]]
        [[18, 'lkkjj', 23]]
    cSs|S)Nr)r�rXr�rrrr�~szlocatedExpr.<locals>.<lambda>Z
locn_startrZlocn_end)rr�rr%r�)rRZlocatorrrrrzesz\[]-*.$+^?()~ )r)cCs|ddS)Nrr�r)r�rXr�rrrr��sr�z\\0?[xX][0-9a-fA-F]+cCstt|djd�d��S)Nrz\0xr�)�unichrr�r)r�rXr�rrrr��sz	\\0[0-7]+cCstt|ddd�d��S)Nrr��)r�r�)r�rXr�rrrr��sz\]r\r.r�Znegate�bodyr/csBdd��y dj�fdd�tj|�jD��Stk
r<dSXdS)aHelper to easily define string ranges for use in Word
    construction. Borrows syntax from regexp '[]' string range
    definitions::

        srange("[0-9]")   -> "0123456789"
        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
        srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"

    The input string must be enclosed in []'s, and the returned string
    is the expanded character set joined into a single string. The
    values enclosed in the []'s may be:

     - a single character
     - an escaped character with a leading backslash (such as ``\-``
       or ``\]``)
     - an escaped hex character with a leading ``'\x'``
       (``\x21``, which is a ``'!'`` character) (``\0x##``
       is also supported for backwards compatibility)
     - an escaped octal character with a leading ``'\0'``
       (``\041``, which is a ``'!'`` character)
     - a range of any of the above, separated by a dash (``'a-z'``,
       etc.)
     - any combination of the above (``'aeiouy'``,
       ``'a-zA-Z0-9_$'``, etc.)
    cSs<t|t�s|Sdjdd�tt|d�t|d�d�D��S)Nr�css|]}t|�VqdS)N)r�)r�r�rrrr��sz+srange.<locals>.<lambda>.<locals>.<genexpr>rr�)r�r1r�r�ord)�prrrr��szsrange.<locals>.<lambda>r�c3s|]}�|�VqdS)Nr)r��part)�	_expandedrrr��szsrange.<locals>.<genexpr>N)r��_reBracketExprr�r�rl)r�r)r�rro�s
 cs�fdd�}|S)zoHelper method for defining parse actions that require matching at
    a specific column in the input text.
    cs"t||��krt||d���dS)Nzmatched token not at column %d)rIr.)rMZlocnrU)r�rr�	verifyCol�sz!matchOnlyAtCol.<locals>.verifyColr)r�r�r)r�rr]�scs�fdd�S)a�Helper method for common parse actions that simply return
    a literal value.  Especially useful when used with
    :class:`transformString<ParserElement.transformString>` ().

    Example::

        num = Word(nums).setParseAction(lambda toks: int(toks[0]))
        na = oneOf("N/A NA").setParseAction(replaceWith(math.nan))
        term = na | num

        OneOrMore(term).parseString("324 234 N/A 234") # -> [324, 234, nan, 234]
    cs�gS)Nr)r�rXr�)�replStrrrr��szreplaceWith.<locals>.<lambda>r)r�r)r�rrl�s
cCs|ddd�S)aHelper parse action for removing quotation marks from parsed
    quoted strings.

    Example::

        # by default, quotation marks are included in parsed results
        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"]

        # use removeQuotes to strip quotation marks from parsed results
        quotedString.setParseAction(removeQuotes)
        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"]
    rr�r�r)r�rXr�rrrrj�s
csN��fdd�}yt�dt�d�j�}Wntk
rBt��}YnX||_|S)aLHelper to define a parse action by mapping a function to all
    elements of a ParseResults list. If any additional args are passed,
    they are forwarded to the given function as additional arguments
    after the token, as in
    ``hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))``,
    which will convert the parsed data to an integer using base 16.

    Example (compare the last to example in :class:`ParserElement.transformString`::

        hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16))
        hex_ints.runTests('''
            00 11 22 aa FF 0a 0d 1a
            ''')

        upperword = Word(alphas).setParseAction(tokenMap(str.upper))
        OneOrMore(upperword).runTests('''
            my kingdom for a horse
            ''')

        wd = Word(alphas).setParseAction(tokenMap(str.title))
        OneOrMore(wd).setParseAction(' '.join).runTests('''
            now is the winter of our discontent made glorious summer by this sun of york
            ''')

    prints::

        00 11 22 aa FF 0a 0d 1a
        [0, 17, 34, 170, 255, 10, 13, 26]

        my kingdom for a horse
        ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE']

        now is the winter of our discontent made glorious summer by this sun of york
        ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York']
    cs��fdd�|D�S)Ncsg|]}�|f����qSrr)r�Ztokn)r�rYrrr��sz(tokenMap.<locals>.pa.<locals>.<listcomp>r)r�rXr�)r�rYrrr��sztokenMap.<locals>.parri)rkrrlr�)rYr�r�rmr)r�rYrr}�s$cCst|�j�S)N)r�r
)r�rrrr�scCst|�j�S)N)r��lower)r�rrrr�sr7r8cs~t|t�r|�t||d�}n|j�tttd�}|r�tj�j	t
�}||d�ttt
|td�|���tddgd�d�j	d	d
��|}nltj�j	t
�ttdd�B}||d�ttt
|j	t�ttd�|����tddgd�d�j	d
d
��|}ttd�|ddd�}|jd��|j�fdd
��|ddj�jdd�j�j���jd��}�|_�|_t|��|_||fS)zRInternal helper to construct opening and closing tag expressions, given a tag name)rz_-:�tag�=�/F)rrScSs|ddkS)Nrr�r)r�rXr�rrrr�sz_makeTags.<locals>.<lambda>r8)rcSs|ddkS)Nrr�r)r�rXr�rrrr�'sz</)r|z<%s>cs*|jddj�jdd�j�j��|j��S)Nrr��:r�)r�r�r��titler�r%)r�)�resnamerrr�-sr*r�r�r�z</%s>)r�r�r r�r>rDrCrNr%r�rjrrArr:r*rirfrRr�_Lr�r�r�r�r�r�r�r7Ztag_body)�tagStrZxmlZsuppress_LTZsuppress_GTZtagAttrNameZtagAttrValueZopenTagZcloseTagr)r�r�	_makeTagss$
JR,r�cCs
t|d�S)aJHelper to construct opening and closing tag expressions for HTML,
    given a tag name. Matches tags in either upper or lower case,
    attributes with namespaces and with quoted or unquoted values.

    Example::

        text = '<td>More info at the <a href="https://github.com/pyparsing/pyparsing/wiki">pyparsing</a> wiki page</td>'
        # makeHTMLTags returns pyparsing expressions for the opening and
        # closing tags as a 2-tuple
        a,a_end = makeHTMLTags("A")
        link_expr = a + SkipTo(a_end)("link_text") + a_end

        for link in link_expr.searchString(text):
            # attributes in the <A> tag (like "href" shown here) are
            # also accessible as named results
            print(link.link_text, '->', link.href)

    prints::

        pyparsing -> https://github.com/pyparsing/pyparsing/wiki
    F)r�)r�rrrr[4scCs
t|d�S)z�Helper to construct opening and closing tag expressions for XML,
    given a tag name. Matches tags only in the given upper/lower case.

    Example: similar to :class:`makeHTMLTags`
    T)r�)r�rrrr\Lscs8|r|dd��n|j��dd��D���fdd�}|S)a6Helper to create a validating parse action to be used with start
    tags created with :class:`makeXMLTags` or
    :class:`makeHTMLTags`. Use ``withAttribute`` to qualify
    a starting tag with a required attribute value, to avoid false
    matches on common tags such as ``<TD>`` or ``<DIV>``.

    Call ``withAttribute`` with a series of attribute names and
    values. Specify the list of filter attributes names and values as:

     - keyword arguments, as in ``(align="right")``, or
     - as an explicit dict with ``**`` operator, when an attribute
       name is also a Python reserved word, as in ``**{"class":"Customer", "align":"right"}``
     - a list of name-value tuples, as in ``(("ns1:class", "Customer"), ("ns2:align","right"))``

    For attribute names with a namespace prefix, you must use the second
    form.  Attribute names are matched insensitive to upper/lower case.

    If just testing for ``class`` (with or without a namespace), use
    :class:`withClass`.

    To verify that the attribute exists, but without specifying a value,
    pass ``withAttribute.ANY_VALUE`` as the value.

    Example::

        html = '''
            <div>
            Some text
            <div type="grid">1 4 0 1 0</div>
            <div type="graph">1,3 2,3 1,1</div>
            <div>this has no type</div>
            </div>

        '''
        div,div_end = makeHTMLTags("div")

        # only match div tag having a type attribute with value "grid"
        div_grid = div().setParseAction(withAttribute(type="grid"))
        grid_expr = div_grid + SkipTo(div | div_end)("body")
        for grid_header in grid_expr.searchString(html):
            print(grid_header.body)

        # construct a match with any div tag having a type attribute, regardless of the value
        div_any_type = div().setParseAction(withAttribute(type=withAttribute.ANY_VALUE))
        div_expr = div_any_type + SkipTo(div | div_end)("body")
        for div_header in div_expr.searchString(html):
            print(div_header.body)

    prints::

        1 4 0 1 0

        1 4 0 1 0
        1,3 2,3 1,1
    NcSsg|]\}}||f�qSrr)r�r�r�rrrr��sz!withAttribute.<locals>.<listcomp>cs^xX�D]P\}}||kr&t||d|��|tjkr|||krt||d||||f��qWdS)Nzno matching attribute z+attribute '%s' has value '%s', must be '%s')r.ru�	ANY_VALUE)r�rXr�ZattrNameZ	attrValue)�attrsrrr��szwithAttribute.<locals>.pa)r)r�ZattrDictr�r)r�rruTs8cCs|rd|nd}tf||i�S)a�Simplified version of :class:`withAttribute` when
    matching on a div class - made difficult because ``class`` is
    a reserved word in Python.

    Example::

        html = '''
            <div>
            Some text
            <div class="grid">1 4 0 1 0</div>
            <div class="graph">1,3 2,3 1,1</div>
            <div>this &lt;div&gt; has no class</div>
            </div>

        '''
        div,div_end = makeHTMLTags("div")
        div_grid = div().setParseAction(withClass("grid"))

        grid_expr = div_grid + SkipTo(div | div_end)("body")
        for grid_header in grid_expr.searchString(html):
            print(grid_header.body)

        div_any_type = div().setParseAction(withClass(withAttribute.ANY_VALUE))
        div_expr = div_any_type + SkipTo(div | div_end)("body")
        for div_header in div_expr.searchString(html):
            print(div_header.body)

    prints::

        1 4 0 1 0

        1 4 0 1 0
        1,3 2,3 1,1
    z%s:class�class)ru)Z	classname�	namespaceZ	classattrrrrr{�s#�(r@cCs�Gdd�dt�}t�}||||B}�x|t|�D�]n\}}|d
dd�\}	}
}}|
dkrdd|	nd|	}
|
dkr�|	dks�t|	�dkr�td	��|	\}}t�j|
�}|tjk�rt|
d
kr�|||	�t|t	|	��}n�|
dk�r.|	dk	�r|||	|�t|t	|	|��}n|||�t|t	|��}nD|
dk�rj||||||�t|||||�}ntd��n�|tj
k�rX|
d
k�r�t|	t��s�t|	�}	||	j
|�t|	|�}n�|
dk�r|	dk	�r�|||	|�t|t	|	|��}n|||�t|t	|��}nD|
dk�rN||||||�t|||||�}ntd��ntd��|�r�t|ttf��r�|j|�n
|j|�||j|
�|BK}|}q2W||K}|S)al
Helper method for constructing grammars of expressions made up of
    operators working in a precedence hierarchy.  Operators may be unary
    or binary, left- or right-associative.  Parse actions can also be
    attached to operator expressions. The generated parser will also
    recognize the use of parentheses to override operator precedences
    (see example below).

    Note: if you define a deep operator list, you may see performance
    issues when using infixNotation. See
    :class:`ParserElement.enablePackrat` for a mechanism to potentially
    improve your parser performance.

    Parameters:
     - baseExpr - expression representing the most basic element for the
       nested
     - opList - list of tuples, one for each operator precedence level
       in the expression grammar; each tuple is of the form ``(opExpr,
       numTerms, rightLeftAssoc, parseAction)``, where:

       - opExpr is the pyparsing expression for the operator; may also
         be a string, which will be converted to a Literal; if numTerms
         is 3, opExpr is a tuple of two expressions, for the two
         operators separating the 3 terms
       - numTerms is the number of terms for this operator (must be 1,
         2, or 3)
       - rightLeftAssoc is the indicator whether the operator is right
         or left associative, using the pyparsing-defined constants
         ``opAssoc.RIGHT`` and ``opAssoc.LEFT``.
       - parseAction is the parse action to be associated with
         expressions matching this operator expression (the parse action
         tuple member may be omitted); if the parse action is passed
         a tuple or list of functions, this is equivalent to calling
         ``setParseAction(*fn)``
         (:class:`ParserElement.setParseAction`)
     - lpar - expression for matching left-parentheses
       (default= ``Suppress('(')``)
     - rpar - expression for matching right-parentheses
       (default= ``Suppress(')')``)

    Example::

        # simple example of four-function arithmetic with ints and
        # variable names
        integer = pyparsing_common.signed_integer
        varname = pyparsing_common.identifier

        arith_expr = infixNotation(integer | varname,
            [
            ('-', 1, opAssoc.RIGHT),
            (oneOf('* /'), 2, opAssoc.LEFT),
            (oneOf('+ -'), 2, opAssoc.LEFT),
            ])

        arith_expr.runTests('''
            5+3*6
            (5+3)*6
            -2--11
            ''', fullDump=False)

    prints::

        5+3*6
        [[5, '+', [3, '*', 6]]]

        (5+3)*6
        [[[5, '+', 3], '*', 6]]

        -2--11
        [[['-', 2], '-', ['-', 11]]]
    c@seZdZddd�ZdS)zinfixNotation.<locals>._FBTcSs|jj||�|gfS)N)rRr�)r�rQr�r�rrrr�sz$infixNotation.<locals>._FB.parseImplN)T)rrr
r�rrrr�_FB
sr�Nr,r�z%s termz	%s%s termr�z@if numterms=3, opExpr must be a tuple or list of two expressionsr�z6operator must be unary (1), binary (2), or ternary (3)z2operator must indicate right or left associativity)N)rrr�r�r�r�rd�LEFTrr(�RIGHTr�r*rRr�r�r�)ZbaseExprZopListZlparZrparr�r�ZlastExprr�ZoperDefZopExprZarityZrightLeftAssocr�ZtermNameZopExpr1ZopExpr2ZthisExprr�rrrry�sZH

&




&


z4"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*�"z string enclosed in double quotesz4'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*�'z string enclosed in single quotesz*quotedString using single or double quotes�uzunicode string literalcCs�||krtd��|dk�r(t|t�o,t|t��r t|�dkr�t|�dkr�|dk	r�tt|t||tjdd���j	dd��}n$t
j�t||tj�j	dd��}nx|dk	r�tt|t|�t|�ttjdd���j	dd��}n4ttt|�t|�ttjdd���j	d	d��}ntd
��t
�}|dk	�rb|tt|�t||B|B�t|��K}n$|tt|�t||B�t|��K}|jd||f�|S)a�	Helper method for defining nested lists enclosed in opening and
    closing delimiters ("(" and ")" are the default).

    Parameters:
     - opener - opening character for a nested list
       (default= ``"("``); can also be a pyparsing expression
     - closer - closing character for a nested list
       (default= ``")"``); can also be a pyparsing expression
     - content - expression for items within the nested lists
       (default= ``None``)
     - ignoreExpr - expression for ignoring opening and closing
       delimiters (default= :class:`quotedString`)

    If an expression is not provided for the content argument, the
    nested expression will capture all whitespace-delimited content
    between delimiters as a list of separate values.

    Use the ``ignoreExpr`` argument to define expressions that may
    contain opening or closing characters that should not be treated as
    opening or closing characters for nesting, such as quotedString or
    a comment expression.  Specify multiple expressions using an
    :class:`Or` or :class:`MatchFirst`. The default is
    :class:`quotedString`, but if no expressions are to be ignored, then
    pass ``None`` for this argument.

    Example::

        data_type = oneOf("void int short long char float double")
        decl_data_type = Combine(data_type + Optional(Word('*')))
        ident = Word(alphas+'_', alphanums+'_')
        number = pyparsing_common.number
        arg = Group(decl_data_type + ident)
        LPAR,RPAR = map(Suppress, "()")

        code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment))

        c_function = (decl_data_type("type")
                      + ident("name")
                      + LPAR + Optional(delimitedList(arg), [])("args") + RPAR
                      + code_body("body"))
        c_function.ignore(cStyleComment)

        source_code = '''
            int is_odd(int x) {
                return (x%2);
            }

            int dec_to_hex(char hchar) {
                if (hchar >= '0' && hchar <= '9') {
                    return (ord(hchar)-ord('0'));
                } else {
                    return (10+ord(hchar)-ord('A'));
                }
            }
        '''
        for func in c_function.searchString(source_code):
            print("%(name)s (%(type)s) args: %(args)s" % func)


    prints::

        is_odd (int) args: [['int', 'x']]
        dec_to_hex (int) args: [['char', 'hchar']]
    z.opening and closing strings cannot be the sameNr�)r)cSs|dj�S)Nr)r�)r�rrrr��sznestedExpr.<locals>.<lambda>cSs|dj�S)Nr)r�)r�rrrr��scSs|dj�S)Nr)r�)r�rrrr��scSs|dj�S)Nr)r�)r�rrrr��szOopening and closing arguments must be strings if no content expression is givenznested %s%s expression)r�r�r�r�rr(rr3ror�rSr%r#rrr:rAr�)�openerZcloserZcontentrur�rrrr`Ps4A

*$cs�dd����fdd���fdd�}�fdd�}�fdd	�}tt�jd
�j��}t�t�j|�jd�}t�j|�jd�}t�j|�jd
�}	|r�tt|�|t|t|�t|��|	�}
n$tt|�t|t|�t|���}
|
j	�fdd��|j
tt��|
jd�S)a�Helper method for defining space-delimited indentation blocks,
    such as those used to define block statements in Python source code.

    Parameters:

     - blockStatementExpr - expression defining syntax of statement that
       is repeated within the indented block
     - indentStack - list created by caller to manage indentation stack
       (multiple statementWithIndentedBlock expressions within a single
       grammar should share a common indentStack)
     - indent - boolean indicating whether block must be indented beyond
       the the current level; set to False for block of left-most
       statements (default= ``True``)

    A valid block must contain at least one ``blockStatement``.

    Example::

        data = '''
        def A(z):
          A1
          B = 100
          G = A2
          A2
          A3
        B
        def BB(a,b,c):
          BB1
          def BBA():
            bba1
            bba2
            bba3
        C
        D
        def spam(x,y):
             def eggs(z):
                 pass
        '''


        indentStack = [1]
        stmt = Forward()

        identifier = Word(alphas, alphanums)
        funcDecl = ("def" + identifier + Group( "(" + Optional( delimitedList(identifier) ) + ")" ) + ":")
        func_body = indentedBlock(stmt, indentStack)
        funcDef = Group( funcDecl + func_body )

        rvalue = Forward()
        funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
        rvalue << (funcCall | identifier | Word(nums))
        assignment = Group(identifier + "=" + rvalue)
        stmt << ( funcDef | assignment | identifier )

        module_body = OneOrMore(stmt)

        parseTree = module_body.parseString(data)
        parseTree.pprint()

    prints::

        [['def',
          'A',
          ['(', 'z', ')'],
          ':',
          [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]],
         'B',
         ['def',
          'BB',
          ['(', 'a', 'b', 'c', ')'],
          ':',
          [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]],
         'C',
         'D',
         ['def',
          'spam',
          ['(', 'x', 'y', ')'],
          ':',
          [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]]
    Ncs��dd�<dS)Nrr)�backup_stack�indentStackrr�reset_stacksz"indentedBlock.<locals>.reset_stackcsN|t|�krdSt||�}|�dkrJ|�dkr>t||d��t||d��dS)Nr�zillegal nestingznot a peer entryr�r�)r�rIr.)r�rXr��curCol)r�rr�checkPeerIndents
z&indentedBlock.<locals>.checkPeerIndentcs2t||�}|�dkr"�j|�nt||d��dS)Nr�znot a subentryr�)rIr�r.)r�rXr�r�)r�rr�checkSubIndents
z%indentedBlock.<locals>.checkSubIndentcsN|t|�krdSt||�}�o4|�dko4|�dksBt||d���j�dS)Nr�r�znot an unindentr�r])r�rIr.r)r�rXr�r�)r�rr�
checkUnindents
z$indentedBlock.<locals>.checkUnindentz	 �INDENTr�ZUNINDENTcs��S)Nr)r(r�r�r9)r�rrr�(szindentedBlock.<locals>.<lambda>zindented block)r(r!r�r�rr�r�rr*r�r�r�)ZblockStatementExprr�r:r�r�r�rEr�ZPEERZUNDENTZsmExprr)r�r�r�rrv�s"Q,z#[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]z[\0xa1-\0xbf\0xd7\0xf7]z_:zany tagzgt lt amp nbsp quot aposz><& "'z&(?P<entity>r�z);zcommon HTML entitycCstj|j�S)zRHelper parser action to replace common HTML entities with their special characters)�_htmlEntityMapr�Zentity)r�rrrrk2sz/\*(?:[^*]|\*(?!/))*z*/zC style commentz<!--[\s\S]*?-->zHTML commentz.*zrest of linez//(?:\\\n|[^\n])*z
// commentzC++ style commentz#.*zPython style comment)rz 	�	commaItem)rc@s�eZdZdZee�Zee�Ze	e
�jd�je�Z
e	e�jd�jeed��Zed�jd�je�Ze�je�de�je�jd�Zejd	d
��eeeed�j�e�Bjd�Zeje�ed
�jd�je�Zed�jd�je�ZeeBeBj�Zed�jd�je�Ze	eded�jd�Zed�jd�Z ed�jd�Z!e!de!djd�Z"ee!de!d>�dee!de!d?�jd�Z#e#j$d d
��d!e jd"�Z%e&e"e%Be#Bjd#��jd#�Z'ed$�jd%�Z(e)d@d'd(��Z*e)dAd*d+��Z+ed,�jd-�Z,ed.�jd/�Z-ed0�jd1�Z.e/j�e0j�BZ1e)d2d3��Z2e&e3e4d4�e5�e	e6d4d5�ee7d6����j�jd7�Z8e9ee:j;�e8Bd8d9��jd:�Z<e)ed;d
���Z=e)ed<d
���Z>d=S)Br~aHere are some common low-level expressions that may be useful in
    jump-starting parser development:

     - numeric forms (:class:`integers<integer>`, :class:`reals<real>`,
       :class:`scientific notation<sci_real>`)
     - common :class:`programming identifiers<identifier>`
     - network addresses (:class:`MAC<mac_address>`,
       :class:`IPv4<ipv4_address>`, :class:`IPv6<ipv6_address>`)
     - ISO8601 :class:`dates<iso8601_date>` and
       :class:`datetime<iso8601_datetime>`
     - :class:`UUID<uuid>`
     - :class:`comma-separated list<comma_separated_list>`

    Parse actions:

     - :class:`convertToInteger`
     - :class:`convertToFloat`
     - :class:`convertToDate`
     - :class:`convertToDatetime`
     - :class:`stripHTMLTags`
     - :class:`upcaseTokens`
     - :class:`downcaseTokens`

    Example::

        pyparsing_common.number.runTests('''
            # any int or real number, returned as the appropriate type
            100
            -100
            +100
            3.14159
            6.02e23
            1e-12
            ''')

        pyparsing_common.fnumber.runTests('''
            # any int or real number, returned as float
            100
            -100
            +100
            3.14159
            6.02e23
            1e-12
            ''')

        pyparsing_common.hex_integer.runTests('''
            # hex numbers
            100
            FF
            ''')

        pyparsing_common.fraction.runTests('''
            # fractions
            1/2
            -3/4
            ''')

        pyparsing_common.mixed_integer.runTests('''
            # mixed fractions
            1
            1/2
            -3/4
            1-3/4
            ''')

        import uuid
        pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
        pyparsing_common.uuid.runTests('''
            # uuid
            12345678-1234-5678-1234-567812345678
            ''')

    prints::

        # any int or real number, returned as the appropriate type
        100
        [100]

        -100
        [-100]

        +100
        [100]

        3.14159
        [3.14159]

        6.02e23
        [6.02e+23]

        1e-12
        [1e-12]

        # any int or real number, returned as float
        100
        [100.0]

        -100
        [-100.0]

        +100
        [100.0]

        3.14159
        [3.14159]

        6.02e23
        [6.02e+23]

        1e-12
        [1e-12]

        # hex numbers
        100
        [256]

        FF
        [255]

        # fractions
        1/2
        [0.5]

        -3/4
        [-0.75]

        # mixed fractions
        1
        [1]

        1/2
        [0.5]

        -3/4
        [-0.75]

        1-3/4
        [1.75]

        # uuid
        12345678-1234-5678-1234-567812345678
        [UUID('12345678-1234-5678-1234-567812345678')]
    �integerzhex integerr�z[+-]?\d+zsigned integerr��fractioncCs|d|dS)Nrr�r�r)r�rrrr��szpyparsing_common.<lambda>r\z"fraction or mixed integer-fractionz
[+-]?\d+\.\d*zreal numberz+[+-]?\d+([eE][+-]?\d+|\.\d*([eE][+-]?\d+)?)z$real number with scientific notationz[+-]?\d+\.?\d*([eE][+-]?\d+)?�fnumberrf�
identifierzK(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})){3}zIPv4 addressz[0-9a-fA-F]{1,4}�hex_integerr��zfull IPv6 addressrrdz::zshort IPv6 addresscCstdd�|D��dkS)Ncss|]}tjj|�rdVqdS)r�N)r~�
_ipv6_partr�)r�r�rrrr�sz,pyparsing_common.<lambda>.<locals>.<genexpr>r�)rl)r�rrrr�sz::ffff:zmixed IPv6 addresszIPv6 addressz:[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}zMAC address�%Y-%m-%dcs�fdd�}|S)a�
        Helper to create a parse action for converting parsed date string to Python datetime.date

        Params -
         - fmt - format to be passed to datetime.strptime (default= ``"%Y-%m-%d"``)

        Example::

            date_expr = pyparsing_common.iso8601_date.copy()
            date_expr.setParseAction(pyparsing_common.convertToDate())
            print(date_expr.parseString("1999-12-31"))

        prints::

            [datetime.date(1999, 12, 31)]
        csLytj|d��j�Stk
rF}zt||t|���WYdd}~XnXdS)Nr)r�strptimeZdater�r.r�)r�rXr��ve)�fmtrr�cvt_fn2sz.pyparsing_common.convertToDate.<locals>.cvt_fnr)r�r�r)r�r�
convertToDate szpyparsing_common.convertToDate�%Y-%m-%dT%H:%M:%S.%fcs�fdd�}|S)aHelper to create a parse action for converting parsed
        datetime string to Python datetime.datetime

        Params -
         - fmt - format to be passed to datetime.strptime (default= ``"%Y-%m-%dT%H:%M:%S.%f"``)

        Example::

            dt_expr = pyparsing_common.iso8601_datetime.copy()
            dt_expr.setParseAction(pyparsing_common.convertToDatetime())
            print(dt_expr.parseString("1999-12-31T23:59:59.999"))

        prints::

            [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)]
        csHytj|d��Stk
rB}zt||t|���WYdd}~XnXdS)Nr)rr�r�r.r�)r�rXr�r�)r�rrr�Ksz2pyparsing_common.convertToDatetime.<locals>.cvt_fnr)r�r�r)r�r�convertToDatetime9sz"pyparsing_common.convertToDatetimez7(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?zISO8601 datez�(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)[T ](?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d(\.\d*)?)?)?(?P<tz>Z|[+-]\d\d:?\d\d)?zISO8601 datetimez2[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}�UUIDcCstjj|d�S)aParse action to remove HTML tags from web page HTML source

        Example::

            # strip HTML links from normal text
            text = '<td>More info at the <a href="https://github.com/pyparsing/pyparsing/wiki">pyparsing</a> wiki page</td>'
            td,td_end = makeHTMLTags("TD")
            table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end
            print(table_text.parseString(text).body)

        Prints::

            More info at the pyparsing wiki page
        r)r~�_html_stripperr�)r�rXr�rrr�
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