Current File : //lib/python3.9/site-packages/setuptools/_vendor/__pycache__/pyparsing.cpython-39.pyc
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�Z�ed�d�Z�egeCeF�d�Z�e�e֐d
d��d���e��Z�e�e�e׃����d�Zؐde�BZ�e�e֐d
d��d���e��Z�e�e�eڃ����d�Z�eԐd�eِd�e�eېd�Z�eܠݐd�e�jޠݐd�e�jߠݐd�e�j�ݐd�ddl�Z�e�j᠝e�e�j��e�j�ݐd�dS(a�	
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 
C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements 
(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
L{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 L{ParseResults} object returned from L{ParserElement.parseString<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 L{ParserElement} and L{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 L{Literal} and L{CaselessLiteral} classes
 - construct character word-group expressions using the L{Word} class
 - see how to create repetitive expressions using L{ZeroOrMore} and L{OneOrMore} classes
 - use L{'+'<And>}, L{'|'<MatchFirst>}, L{'^'<Or>}, and L{'&'<Each>} operators to combine simple expressions into more complex ones
 - associate names with your parsed results using L{ParserElement.setResultsName}
 - find some helpful expression short-cuts like L{delimitedList} and L{oneOf}
 - find more useful common expressions in the L{pyparsing_common} namespace class
z2.2.1z18 Sep 2018 00:49 UTCz*Paul McGuire <ptmcg@users.sourceforge.net>�N)�ref)�datetime)�RLock)�Iterable)�MutableMapping)�OrderedDict)i�And�CaselessKeyword�CaselessLiteral�
CharsNotIn�Combine�Dict�Each�Empty�
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GoToColumn�Group�Keyword�LineEnd�	LineStart�Literal�
MatchFirst�NoMatch�NotAny�	OneOrMore�OnlyOnce�Optional�Or�ParseBaseException�ParseElementEnhance�ParseException�ParseExpression�ParseFatalException�ParseResults�ParseSyntaxException�
ParserElement�QuotedString�RecursiveGrammarException�Regex�SkipTo�	StringEnd�StringStart�Suppress�Token�TokenConverter�White�Word�WordEnd�	WordStart�
ZeroOrMore�	alphanums�alphas�
alphas8bit�anyCloseTag�
anyOpenTag�
cStyleComment�col�commaSeparatedList�commonHTMLEntity�countedArray�cppStyleComment�dblQuotedString�dblSlashComment�
delimitedList�dictOf�downcaseTokens�empty�hexnums�htmlComment�javaStyleComment�line�lineEnd�	lineStart�lineno�makeHTMLTags�makeXMLTags�matchOnlyAtCol�matchPreviousExpr�matchPreviousLiteral�
nestedExpr�nullDebugAction�nums�oneOf�opAssoc�operatorPrecedence�
printables�punc8bit�pythonStyleComment�quotedString�removeQuotes�replaceHTMLEntity�replaceWith�
restOfLine�sglQuotedString�srange�	stringEnd�stringStart�traceParseAction�
unicodeString�upcaseTokens�
withAttribute�
indentedBlock�originalTextFor�ungroup�
infixNotation�locatedExpr�	withClass�
CloseMatch�tokenMap�pyparsing_common�cCsdt|t�r|Sz
t|�WSty^t|��t��d�}td�}|�dd��|�	|�YS0dS)aDrop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
           then < returns the unicode object | encodes it with the default encoding | ... >.
        �xmlcharrefreplacez&#\d+;cSs$dtt|ddd���dd�S)Nz\ur����)�hex�int��t�ry�@/usr/lib/python3.9/site-packages/setuptools/_vendor/pyparsing.py�<lambda>��z_ustr.<locals>.<lambda>N)
�
isinstanceZunicode�str�UnicodeEncodeError�encode�sys�getdefaultencodingr)�setParseAction�transformString)�obj�retZ
xmlcharrefryryrz�_ustr�s

r�z6sum len sorted reversed list tuple set any all min maxccs|]
}|VqdS�Nry)�.0�yryryrz�	<genexpr>�r|r��cCs:d}dd�d��D�}t||�D]\}}|�||�}q |S)z/Escape &, <, >, ", ', etc. in a string of data.z&><"'css|]}d|dVqdS)�&�;Nry)r��sryryrzr��r|z_xml_escape.<locals>.<genexpr>zamp gt lt quot apos)�split�zip�replace)�dataZfrom_symbolsZ
to_symbolsZfrom_Zto_ryryrz�_xml_escape�s
r�c@seZdZdS)�
_ConstantsN)�__name__�
__module__�__qualname__ryryryrzr��sr��
0123456789ZABCDEFabcdef�\�ccs|]}|tjvr|VqdSr�)�stringZ
whitespace�r��cryryrzr��r|c@sPeZdZdZddd�Zedd��Zdd	�Zd
d�Zdd
�Z	ddd�Z
dd�ZdS)rz7base exception class for all parsing runtime exceptionsrNcCs>||_|dur||_d|_n||_||_||_|||f|_dS�Nr�)�loc�msg�pstr�
parserElement�args)�selfr�r�r��elemryryrz�__init__�szParseBaseException.__init__cCs||j|j|j|j�S)z�
        internal factory method to simplify creating one type of ParseException 
        from another - avoids having __init__ signature conflicts among subclasses
        )r�r�r�r�)�cls�peryryrz�_from_exception�sz"ParseBaseException._from_exceptioncCsN|dkrt|j|j�S|dvr,t|j|j�S|dkrBt|j|j�St|��dS)z�supported attributes by name are:
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            - line - returns the line containing the exception text
        rL)r;�columnrIN)rLr�r�r;rI�AttributeError)r�Zanameryryrz�__getattr__�szParseBaseException.__getattr__cCsd|j|j|j|jfS)Nz"%s (at char %d), (line:%d, col:%d))r�r�rLr��r�ryryrz�__str__�s�zParseBaseException.__str__cCst|�Sr��r�r�ryryrz�__repr__�szParseBaseException.__repr__�>!<cCs<|j}|jd}|r4d�|d|�|||d�f�}|��S)z�Extracts the exception line from the input string, and marks
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        r�r�N)rIr��join�strip)r�ZmarkerStringZline_strZline_columnryryrz�
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�z ParseBaseException.markInputlinecCsd��tt|��S)Nzlineno col line)r��dir�typer�ryryrz�__dir__szParseBaseException.__dir__)rNN)r�)r�r�r��__doc__r��classmethodr�r�r�r�r�r�ryryryrzr�s



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    Exception thrown when parse expressions don't match class;
    supported attributes by name are:
     - 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
    N�r�r�r�r�ryryryrzr!sr!c@seZdZdZdS)r#znuser-throwable exception thrown when inconsistent parse content
       is found; stops all parsing immediatelyNr�ryryryrzr#sr#c@seZdZdZdS)r%z�just like L{ParseFatalException}, but thrown internally when an
       L{ErrorStop<And._ErrorStop>} ('-' operator) indicates that parsing is to stop 
       immediately because an unbacktrackable syntax error has been foundNr�ryryryrzr%sr%c@s eZdZdZdd�Zdd�ZdS)r(zZexception thrown by L{ParserElement.validate} if the grammar could be improperly recursivecCs
||_dSr��ZparseElementTrace�r��parseElementListryryrzr�4sz"RecursiveGrammarException.__init__cCs
d|jS)NzRecursiveGrammarException: %sr�r�ryryrzr�7sz!RecursiveGrammarException.__str__N)r�r�r�r�r�r�ryryryrzr(2sr(c@s,eZdZdd�Zdd�Zdd�Zdd�Zd	S)
�_ParseResultsWithOffsetcCs||f|_dSr���tup)r�Zp1Zp2ryryrzr�;sz _ParseResultsWithOffset.__init__cCs
|j|Sr�r��r��iryryrz�__getitem__=sz#_ParseResultsWithOffset.__getitem__cCst|jd�S�Nr)�reprr�r�ryryrzr�?sz _ParseResultsWithOffset.__repr__cCs|jd|f|_dSr�r�r�ryryrz�	setOffsetAsz!_ParseResultsWithOffset.setOffsetN)r�r�r�r�r�r�r�ryryryrzr�:sr�c@s�eZdZdZd[dd�Zddddefdd�Zdd	�Zefd
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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$d:d;�Z%d<d=�Z&d]d?d@�Z'dAdB�Z(dCdD�Z)dEdF�Z*d^dHdI�Z+dJdK�Z,dLdM�Z-d_dOdP�Z.dQdR�Z/dSdT�Z0dUdV�Z1dWdX�Z2dYdZ�Z3dS)`r$aI
    Structured parse results, to provide multiple means of access to the parsed data:
       - as a list (C{len(results)})
       - by list index (C{results[0], results[1]}, etc.)
       - by attribute (C{results.<resultsName>} - see L{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
    NTcCs"t||�r|St�|�}d|_|S�NT)r}�object�__new__�_ParseResults__doinit)r��toklist�name�asList�modalZretobjryryrzr�ks


zParseResults.__new__c
Cs`|jrvd|_d|_d|_i|_||_||_|dur6g}||t�rP|dd�|_n||t�rft|�|_n|g|_t	�|_
|du�r\|�r\|s�d|j|<||t�r�t|�}||_||t
d�ttf�r�|ddgfv�s\||t�r�|g}|�r(||t��rt|��d�||<ntt|d�d�||<|||_n4z|d||<Wn"tttf�yZ|||<Yn0dS)NFrr�)r��_ParseResults__name�_ParseResults__parent�_ParseResults__accumNames�_ParseResults__asList�_ParseResults__modal�list�_ParseResults__toklist�_generatorType�dict�_ParseResults__tokdictrvr�r��
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<listcomp>�r|z,ParseResults.__getitem__.<locals>.<listcomp>)r}rv�slicer�r�r�r$r�ryryrzr��s


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Cs�t|ttf�r�t|j�}|j|=t|t�rH|dkr:||7}t||d�}tt|�|���}|��|j	�
�D]>\}}|D]0}t|�D]"\}\}}	t||	|	|k�||<q�qxqln|j	|=dS�Nrr�)
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r�r�ZmylenZremovedr��occurrences�jr��value�positionryryrz�__delitem__�s

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||jvSr�)r�)r�r�ryryrz�__contains__�szParseResults.__contains__cCs
t|j�Sr�)r�r�r�ryryrz�__len__�r|zParseResults.__len__cCs
|jSr��r�r�ryryrz�__bool__�r|zParseResults.__bool__cCs
t|j�Sr���iterr�r�ryryrz�__iter__�r|zParseResults.__iter__cCst|jddd��S�Nrtr�r�ryryrz�__reversed__�r|zParseResults.__reversed__cCs$t|jd�r|j��St|j�SdS)N�iterkeys)�hasattrr�r�r�r�ryryrz�	_iterkeys�s
zParseResults._iterkeyscs�fdd����D�S)Nc3s|]}�|VqdSr�ry�r�r�r�ryrzr��r|z+ParseResults._itervalues.<locals>.<genexpr>�rr�ryr�rz�_itervalues�szParseResults._itervaluescs�fdd����D�S)Nc3s|]}|�|fVqdSr�ryrr�ryrzr��r|z*ParseResults._iteritems.<locals>.<genexpr>rr�ryr�rz�
_iteritems�szParseResults._iteritemscCst|���S)zVReturns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x).)r�r�r�ryryrz�keys�szParseResults.keyscCst|���S)zXReturns all named result values (as a list in Python 2.x, as an iterator in Python 3.x).)r��
itervaluesr�ryryrz�values�szParseResults.valuescCst|���S)zfReturns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x).)r��	iteritemsr�ryryrzr��szParseResults.itemscCs
t|j�S)z�Since keys() returns an iterator, this method is helpful in bypassing
           code that looks for the existence of any defined results names.)�boolr�r�ryryrz�haskeys�szParseResults.haskeyscOs�|s
dg}|��D]*\}}|dkr0|d|f}qtd|��qt|dt�sdt|�dksd|d|vr~|d}||}||=|S|d}|SdS)a�
        Removes and returns item at specified index (default=C{last}).
        Supports both C{list} and C{dict} semantics for C{pop()}. If passed no
        argument or an integer argument, it will use C{list} semantics
        and pop tokens from the list of parsed tokens. If passed a 
        non-integer argument (most likely a string), it will use C{dict}
        semantics and pop the corresponding value from any defined 
        results names. A second default return value argument is 
        supported, just as in C{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']
        rt�defaultrz-pop() got an unexpected keyword argument '%s'r�N)r�r�r}rvr�)r�r��kwargsr�r��indexr�Zdefaultvalueryryrz�pop�s""
�
�zParseResults.popcCs||vr||S|SdS)ai
        Returns named result matching the given key, or if there is no
        such name, then returns the given C{defaultValue} or C{None} if no
        C{defaultValue} is specified.

        Similar to C{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
        Nry)r��key�defaultValueryryrzr�3szParseResults.getcCsR|j�||�|j��D]4\}}t|�D]"\}\}}t||||k�||<q(qdS)a
        Inserts new element at location index in the list of parsed tokens.
        
        Similar to C{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�r�r�r�)r�r
ZinsStrr�r�r�r�r�ryryrzrIszParseResults.insertcCs|j�|�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��append)r��itemryryrzr]szParseResults.appendcCs$t|t�r||7}n|j�|�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}r$r��extend)r�Zitemseqryryrzrks

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�zParseResults.__iadd__cCs&t|t�r|dkr|��S||SdSr�)r}rvr��r�rryryrz�__radd__�szParseResults.__radd__cCsdt|j�t|j�fS)Nz(%s, %s))r�r�r�r�ryryrzr��szParseResults.__repr__cCsdd�dd�|jD��dS)N�[�, css(|] }t|t�rt|�nt|�VqdSr�)r}r$r�r��r�r�ryryrzr��r|z'ParseResults.__str__.<locals>.<genexpr>�])r�r�r�ryryrzr��szParseResults.__str__r�cCsLg}|jD]<}|r |r |�|�t|t�r8||��7}q
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            # 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|��n|�qSry)r}r$r�)r��resryryrzr��r|z'ParseResults.asList.<locals>.<listcomp>r�r�ryryrzr��szParseResults.asListcs6tr|j}n|j}�fdd��t�fdd�|�D��S)a�
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            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.|��r|��S�fdd�|D�Sn|SdS)Ncsg|]}�|��qSryryr���toItemryrzr��r|z7ParseResults.asDict.<locals>.toItem.<locals>.<listcomp>)r}r$r
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z#ParseResults.asDict.<locals>.toItemc3s|]\}}|�|�fVqdSr�ry�r�r�r�r,ryrzr��r|z&ParseResults.asDict.<locals>.<genexpr>)�PY_3r�rr�)r�Zitem_fnryr,rzr.�s
	zParseResults.asDictcCs8t|j�}|j��|_|j|_|j�|j�|j|_|S)zA
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zParseResults.copyFcCsLd}g}tdd�|j��D��}|d}|s8d}d}d}d}	|durJ|}	n|jrV|j}	|	sf|rbdSd}	|||d|	d	g7}t|j�D]�\}
}t|t�r�|
|vr�||�||
|o�|du||�g7}n||�d|o�|du||�g7}q�d}|
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}|�s|�rq�nd}t	t
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css(|] \}}|D]}|d|fVqqdS�r�Nryrryryrzr�s
�z%ParseResults.asXML.<locals>.<genexpr>�  r�NZITEM�<�>�</)r�r�r�r�r�r�r}r$�asXMLr�r�r�)r�ZdoctagZnamedItemsOnly�indent�	formatted�nlr*Z
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zParseResults.__lookupcCs�|jr|jS|jr.|��}|r(|�|�SdSnNt|�dkrxt|j�dkrxtt|j����dddvrxtt|j����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�r)rrt)	r�r��_ParseResults__lookupr�r��nextr�rr)r��parryryrz�getNameBs
��zParseResults.getNamercCsZg}d}|�|t|����|�rP|��r�tdd�|��D��}|D]r\}}|r\|�|�|�d|d||f�t|t�r�|r�|�|�||d��q�|�t|��qF|�t	|��qFn�t
dd�|D���rP|}t|�D]r\}	}
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t��r$|�d|d||	|d|d|
�||d�f�q�|�d|d||	|d|dt|
�f�q�d	�|�S)
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        Diagnostic method for listing out the contents of a C{ParseResults}.
        Accepts an optional C{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
        r2css|]\}}t|�|fVqdSr�)r~r/ryryrzr�~r|z$ParseResults.dump.<locals>.<genexpr>z
%s%s- %s: r4r�css|]}t|t�VqdSr�)r}r$)r��vvryryrzr��r|z
%s%s[%d]:
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�sortedr�r}r$�dumpr��anyr�r�)r�r9�depth�fullr*�NLr�r�r�r�r@ryryrzrBgs,

4,zParseResults.dumpcOs tj|��g|�Ri|��dS)a�
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        Accepts additional positional or keyword args as defined for the 
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        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�rryryrzrG�szParseResults.pprintcCs.|j|j��|jdur|��p d|j|jffSr�)r�r�r�r�r�r�r�ryryrz�__getstate__�s��zParseResults.__getstate__cCsN|d|_|d\|_}}|_i|_|j�|�|durDt|�|_nd|_dSr�)r�r�r�r�r r�r�)r��stater>ZinAccumNamesryryrz�__setstate__�s
�zParseResults.__setstate__cCs|j|j|j|jfSr�)r�r�r�r�r�ryryrz�__getnewargs__�szParseResults.__getnewargs__cCstt|��t|���Sr�)r�r�r�rr�ryryrzr��szParseResults.__dir__)NNTT)N)r�)NFr�T)r�rT)4r�r�r�r�r�r}r�r�r�r�r�r�r��__nonzero__r�r�rrrr0rrr�r�rrr
rr�rrrrr�rr!r#r�r�r(r�r.r�r8r<r?rBrGrIrKrLr�ryryryrzr$Dsh&
	'	
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=%
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r$cCsF|}d|krt|�kr4nn||ddkr4dS||�dd|�S)aReturns current column within a string, counting newlines as line separators.
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   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
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   rr�r2)r��rfind)r��strgr�ryryrzr;�s
r;cCs|�dd|�dS)aReturns current line number within a string, counting newlines as line separators.
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   r2rr�)�count)r�rOryryrzrL�s
rLcCsF|�dd|�}|�d|�}|dkr2||d|�S||dd�SdS)zfReturns the line of text containing loc within a string, counting newlines as line separators.
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rIcCs8tdt|�dt|�dt||�t||�f�dS)NzMatch z at loc z(%d,%d))�printr�rLr;)�instringr��exprryryrz�_defaultStartDebugAction�srUcCs$tdt|�dt|����dS)NzMatched z -> )rRr�r~r�)rS�startlocZendlocrT�toksryryrz�_defaultSuccessDebugAction�srXcCstdt|��dS)NzException raised:)rRr�)rSr�rT�excryryrz�_defaultExceptionDebugAction�srZcGsdS)zG'Do-nothing' debug action, to suppress debugging output during parsing.Nry)r�ryryrzrS�srSrscs��tvr�fdd�Sdg�dg�tdd�dkrFddd�}dd	d
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}|d|d|f�������fdd�}d}zt�dt�d�j�}Wnty�t��}Yn0||_|S)Ncs�|�Sr�ry�r��lrx)�funcryrzr{r|z_trim_arity.<locals>.<lambda>rFrs)rq�cSs8tdkrdnd}tj||dd�|}|dd�gS)N)rqr^r������r���limitrs)�system_version�	traceback�
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�rscs�eZdZdZdZdZedd��Zedd��Zd�dd	�Z	d
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�Zd�dd�Zd�dd�Z
dd�Zdd�Zdd�Zdd�Zdd�Zdd�Zd�dd �Zd!d"�Zd�d#d$�Zd%d&�Zd'd(�ZGd)d*�d*e�Zed+ur�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)�r&z)Abstract base level parser element class.z 
	
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        Overrides the default whitespace chars

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            # 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)r&�DEFAULT_WHITE_CHARS��charsryryrz�setDefaultWhitespaceCharsTs
z'ParserElement.setDefaultWhitespaceCharscCs
|t_dS)a�
        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)r&�_literalStringClass)r�ryryrz�inlineLiteralsUsingcsz!ParserElement.inlineLiteralsUsingcCs�t�|_d|_d|_d|_||_d|_tj|_	d|_
d|_d|_t�|_
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failAction�strRepr�resultsName�
saveAsList�skipWhitespacer&rt�
whiteChars�copyDefaultWhiteChars�mayReturnEmpty�keepTabs�ignoreExprs�debug�streamlined�
mayIndexError�errmsg�modalResults�debugActions�re�callPreparse�
callDuringTry)r��savelistryryrzr�xs(zParserElement.__init__cCs<t�|�}|jdd�|_|jdd�|_|jr8tj|_|S)a$
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        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 C{expr.copy()} is just C{expr()}::
            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
        N)r�rzr�r�r&rtr�)r�Zcpyryryrzr��s
zParserElement.copycCs*||_d|j|_t|d�r&|j|j_|S)af
        Define name for this expression, makes debugging and exception messages clearer.
        
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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)
        �	Expected �	exception)r�r�r�r�r�rryryrz�setName�s


zParserElement.setNamecCs4|��}|�d�r"|dd�}d}||_||_|S)aP
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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,
        C{expr("name")} in place of C{expr.setResultsName("name")} - 
        see L{I{__call__}<__call__>}.

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

            # equivalent form:
            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
        �*NrtT)r��endswithr}r�)r�r��listAllMatchesZnewselfryryrz�setResultsName�s
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        Tcsddl}|���||||�Sr�)�pdbZ	set_trace)rSr��	doActions�callPreParser��Z_parseMethodryrz�breaker�sz'ParserElement.setBreak.<locals>.breaker�_originalParseMethod)TT)�_parser�r�)r�Z	breakFlagr�ryr�rz�setBreak�s
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        C{fn(loc,toks)}, C{fn(toks)}, or just C{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 C{L{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=C{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 L{I{parseString}<parseString>} for more information
        on parsing strings containing C{<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��maprsrzr�r��r��fnsrryryrzr��s"zParserElement.setParseActioncOs4|jtttt|���7_|jp,|�dd�|_|S)z�
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        r�F)rzr�r�rsr�r�r�ryryrz�addParseActionszParserElement.addParseActioncs^|�dd��|�dd�rtnt�|D] ����fdd�}|j�|�q$|jpV|�dd�|_|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$tt��|||��s �||���dSr�)r	rsr[��exc_type�fnr�ryrz�pa&sz&ParserElement.addCondition.<locals>.par�)r�r#r!rzrr�)r�r�rr�ryr�rz�addConditionszParserElement.addConditioncCs
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            - s = string being parsed
            - loc = location where expression match was attempted and failed
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zParserElement._parseCachecCs(tj��dgttj�tjdd�<dSr�)r&r�rr�r�ryryryrz�
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zParserElement.resetCache�cCs8tjs4dt_|dur t��t_nt�|�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=C{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 C{ParserElement.enablePackrat()}.  If
           your program uses C{psyco} to "compile as you go", you must call
           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
           Python will crash.  For best results, call C{enablePackrat()} immediately
           after importing pyparsing.
           
           Example::
               import pyparsing
               pyparsing.ParserElement.enablePackrat()
        TN)r&�_packratEnabledr�r�r�r�r�)Zcache_size_limitryryrz�
enablePackrat%szParserElement.enablePackratc
Cs�t��|js|��|jD]}|��q|js8|��}z<|�|d�\}}|rr|�||�}t	�t
�}|�||�Wn2ty�}ztjr��n|�WYd}~nd}~00|SdS)aB
        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 C{parseAll} to True (equivalent to ending
        the grammar with C{L{StringEnd()}}).

        Note: C{parseString} implicitly calls C{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 C{loc} argument to index into the
        string being parsed, you can ensure you have a consistent view of the input
        string by:
         - calling C{parseWithTabs} on your grammar before calling C{parseString}
           (see L{I{parseWithTabs}<parseWithTabs>})
         - define your parse action using the full C{(s,loc,toks)} signature, and
           reference the input string using the parse action's C{s} argument
         - explictly expand the tabs in your input string before calling
           C{parseString}
        
        Example::
            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
        rN)
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zParserElement.parseStringc
cs6|js|��|jD]}|��q|js4t|���}t|�}d}|j}|j}t	�
�d}	z�||kr�|	|kr�z |||�}
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dd�\}}Wnty�|
d}YqZ0||kr�|	d7}	||
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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
        C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
        C{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 L{I{parseString}<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�r&r�r!rr�)r�rS�
maxMatchesZoverlapr�r�r�Z
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zParserElement.scanStringc
Cs�g}d}d|_z�|�|�D]Z\}}}|�|||��|rpt|t�rR||��7}nt|t�rf||7}n
|�|�|}q|�||d��dd�|D�}d�tt	t
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rĂn|�WYd}~n
d}~00dS)af
        Extension to C{L{scanString}}, to modify matching text with modified tokens that may
        be returned from a parse action.  To use C{transformString}, define a grammar and
        attach a parse action to it that modifies the returned token list.
        Invoking C{transformString()} on a target string will then scan for matches,
        and replace the matched text patterns according to the logic in the parse
        action.  C{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|�qSryry)r��oryryrzr��r|z1ParserElement.transformString.<locals>.<listcomp>r�)r�r�rr}r$r�r�r�r�r��_flattenrr&r�)r�rSr*ZlastErxr�r�rYryryrzr��s(



zParserElement.transformStringc
CsTztdd�|�||�D��WStyN}ztjr6�n|�WYd}~n
d}~00dS)a�
        Another extension to C{L{scanString}}, simplifying the access to the tokens found
        to match the given parse expression.  May be called with optional
        C{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|]\}}}|�qSryry)r�rxr�r�ryryrzr��r|z.ParserElement.searchString.<locals>.<listcomp>N)r$r�rr&r�)r�rSr�rYryryrz�searchString�szParserElement.searchStringc	csTd}d}|j||d�D]*\}}}|||�V|r<|dV|}q||d�VdS)a[
        Generator method to split a string using the given expression as a separator.
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        and the optional C{includeSeparators} argument (default=C{False}), if the separating
        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', '']
        r)r�N)r�)	r�rS�maxsplitZincludeSeparatorsZsplits�lastrxr�r�ryryrzr�s

zParserElement.splitcCsFt|t�rt�|�}t|t�s:tjdt|�tdd�dSt||g�S)a�
        Implementation of + operator - returns C{L{And}}. Adding strings to a ParserElement
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        Example::
            greet = Word(alphas) + "," + Word(alphas) + "!"
            hello = "Hello, World!"
            print (hello, "->", greet.parseString(hello))
        Prints::
            Hello, World! -> ['Hello', ',', 'World', '!']
        �4Cannot combine element of type %s with ParserElementrs��
stacklevelN)	r}r�r&rx�warnings�warnr��
SyntaxWarningrr"ryryrzrs


�zParserElement.__add__cCsBt|t�rt�|�}t|t�s:tjdt|�tdd�dS||S)z]
        Implementation of + operator when left operand is not a C{L{ParserElement}}
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�zParserElement.__radd__cCsJt|t�rt�|�}t|t�s:tjdt|�tdd�dS|t�	�|S)zQ
        Implementation of - operator, returns C{L{And}} with error stop
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�zParserElement.__sub__cCsBt|t�rt�|�}t|t�s:tjdt|�tdd�dS||S)z]
        Implementation of - operator when left operand is not a C{L{ParserElement}}
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�zParserElement.__rsub__cs�t|t�r|d}}n�t|t�r�|ddd�}|ddurHd|df}t|dt�r�|ddur�|ddkrvt��S|ddkr�t��S�|dt��Sq�t|dt�r�t|dt�r�|\}}||8}q�tdt|d�t|d���ntdt|���|dk�rtd��|dk�rtd	��||k�r6dk�rBnntd
��|�r���fdd��|�r�|dk�rt��|�}nt�g|��|�}n�|�}n|dk�r��}nt�g|�}|S)
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        Implementation of * operator, allows use of C{expr * 3} in place of
        C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
        tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
        may also include C{None} as in:
         - C{expr*(n,None)} or C{expr*(n,)} is equivalent
              to C{expr*n + L{ZeroOrMore}(expr)}
              (read as "at least n instances of C{expr}")
         - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
              (read as "0 to n instances of C{expr}")
         - C{expr*(None,None)} is equivalent to C{L{ZeroOrMore}(expr)}
         - C{expr*(1,None)} is equivalent to C{L{OneOrMore}(expr)}

        Note that C{expr*(None,n)} does not raise an exception if
        more than n exprs exist in the input stream; that is,
        C{expr*(None,n)} does not enforce a maximum number of expr
        occurrences.  If this behavior is desired, then write
        C{expr*(None,n) + ~expr}
        r)NNNrsr�z7cannot multiply 'ParserElement' and ('%s','%s') objectsz0cannot multiply 'ParserElement' and '%s' objectsz/cannot multiply ParserElement by negative valuez@second tuple value must be greater or equal to first tuple valuez+cannot multiply ParserElement by 0 or (0,0)cs(|dkrt��|d��St��SdSr�)r��n��makeOptionalListr�ryrzr��sz/ParserElement.__mul__.<locals>.makeOptionalList)	r}rv�tupler4rr�r��
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zParserElement.__mul__cCs
|�|�Sr�)rr"ryryrz�__rmul__�szParserElement.__rmul__cCsFt|t�rt�|�}t|t�s:tjdt|�tdd�dSt||g�S)zI
        Implementation of | operator - returns C{L{MatchFirst}}
        r�rsr�N)	r}r�r&rxr�r�r�r�rr"ryryrz�__or__�s


�zParserElement.__or__cCsBt|t�rt�|�}t|t�s:tjdt|�tdd�dS||BS)z]
        Implementation of | operator when left operand is not a C{L{ParserElement}}
        r�rsr�Nr�r"ryryrz�__ror__�s


�zParserElement.__ror__cCsFt|t�rt�|�}t|t�s:tjdt|�tdd�dSt||g�S)zA
        Implementation of ^ operator - returns C{L{Or}}
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�zParserElement.__xor__cCsBt|t�rt�|�}t|t�s:tjdt|�tdd�dS||AS)z]
        Implementation of ^ operator when left operand is not a C{L{ParserElement}}
        r�rsr�Nr�r"ryryrz�__rxor__�s


�zParserElement.__rxor__cCsFt|t�rt�|�}t|t�s:tjdt|�tdd�dSt||g�S)zC
        Implementation of & operator - returns C{L{Each}}
        r�rsr�N)	r}r�r&rxr�r�r�r�rr"ryryrz�__and__�s


�zParserElement.__and__cCsBt|t�rt�|�}t|t�s:tjdt|�tdd�dS||@S)z]
        Implementation of & operator when left operand is not a C{L{ParserElement}}
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�zParserElement.__rand__cCst|�S)zE
        Implementation of ~ operator - returns C{L{NotAny}}
        )rr�ryryrz�
__invert__�szParserElement.__invert__cCs|dur|�|�S|��SdS)a

        Shortcut for C{L{setResultsName}}, with C{listAllMatches=False}.
        
        If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
        passed as C{True}.
           
        If C{name} is omitted, same as calling C{L{copy}}.

        Example::
            # these are equivalent
            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
            userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")             
        N)r�r�rryryrz�__call__�s
zParserElement.__call__cCst|�S)z�
        Suppresses the output of this C{ParserElement}; useful to keep punctuation from
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d|_|S)a
        Disables the skipping of whitespace before matching the characters in the
        C{ParserElement}'s defined pattern.  This is normally only used internally by
        the pyparsing module, but may be needed in some whitespace-sensitive grammars.
        F�rr�ryryrz�leaveWhitespaceszParserElement.leaveWhitespacecCsd|_||_d|_|S)z8
        Overrides the default whitespace chars
        TF)rr�r�)r�rvryryrz�setWhitespaceChars
sz ParserElement.setWhitespaceCharscCs
d|_|S)z�
        Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
        Must be called before C{parseString} when the input grammar contains elements that
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        T)r�r�ryryrz�
parseWithTabsszParserElement.parseWithTabscCsLt|t�rt|�}t|t�r4||jvrH|j�|�n|j�t|����|S)a�
        Define expression to be ignored (e.g., comments) while doing pattern
        matching; may be called repeatedly, to define multiple comment or other
        ignorable patterns.
        
        Example::
            patt = OneOrMore(Word(alphas))
            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']
            
            patt.ignore(cStyleComment)
            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
        )r}r�r-r�rr�r"ryryrz�ignores


zParserElement.ignorecCs"|pt|pt|ptf|_d|_|S)zT
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        T)rUrXrZr�r�)r�ZstartActionZ
successActionZexceptionActionryryrz�setDebugActions6s�zParserElement.setDebugActionscCs|r|�ttt�nd|_|S)a�
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            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 L{setDebugActions}. Prior to attempting
        to match the C{wd} expression, the debugging message C{"Match <exprname> at loc <n>(<line>,<col>)"}
        is shown. Then if the parse succeeds, a C{"Matched"} message is shown, or an C{"Exception raised"}
        message is shown. Also note the use of L{setName} to assign a human-readable name to the expression,
        which makes debugging and exception messages easier to understand - for instance, the default
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        F)rrUrXrZr�)r��flagryryrz�setDebug@s#zParserElement.setDebugcCs|jSr�)r�r�ryryrzr�iszParserElement.__str__cCst|�Sr�r�r�ryryrzr�lszParserElement.__repr__cCsd|_d|_|Sr�)r�r|r�ryryrzr�oszParserElement.streamlinecCsdSr�ryr�ryryrz�checkRecursiontszParserElement.checkRecursioncCs|�g�dS)zj
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validateTraceryryrz�validatewszParserElement.validatecCs�z|��}WnDtyPt|d��}|��}Wd�n1sB0YYn0z|�||�WSty�}ztjrz�n|�WYd}~n
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zParserElement.__eq__cCs
||kSr�ryr"ryryrz�__ne__�szParserElement.__ne__cCstt|��Sr�)�hash�idr�ryryrz�__hash__�szParserElement.__hash__cCs||kSr�ryr"ryryrz�__req__�szParserElement.__req__cCs
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        Method for quick testing of a parser against a test string. Good for simple 
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        Parameters:
         - testString - to test against this expression for a match
         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests
            
        Example::
            expr = Word(nums)
            assert expr.matches("100")
        �r�TFN)r�r�r)r�Z
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zParserElement.matches�#cCs�t|t�r"tttj|������}t|t�r4t|�}g}g}d}	|D�]�}
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|
|f�qD|	|fS)a3
        Execute the parse expression on a series of test strings, showing each
        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=C{True}) - flag to pass to C{L{parseString}} when running tests           
         - comment - (default=C{'#'}) - expression for indicating embedded comments in the test 
              string; pass None to disable comment filtering
         - fullDump - (default=C{True}) - dump results as list followed by results names in nested outline;
              if False, only dump nested list
         - printResults - (default=C{True}) prints test output to stdout
         - failureTests - (default=C{False}) indicates if these tests are expected to fail parsing

        Returns: a (success, results) tuple, where success indicates that all tests succeeded
        (or failed if C{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'.)
        TNFr2�\nr')rEz(FATAL)r�� r��^zFAIL: zFAIL-EXCEPTION: )r}r�r�r�r~r��rstrip�
splitlinesrr�rr�r�r�rBrr#rIr�r;rqrR)r�Ztestsr�ZcommentZfullDumpZprintResultsZfailureTestsZ
allResultsZcomments�successrxr*�resultr�r�rYryryrz�runTests�sNW




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    cstt|�jdd�dS�NF�r�)rr.r�r�rryrzr�@	szToken.__init__�r�r�r�r�r�r3ryryrrzr.<	sr.cs eZdZdZ�fdd�Z�ZS)rz,
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    cs$tt|���d|_d|_d|_dS)NrTF)rrr�r�r�r�r�rryrzr�H	szEmpty.__init__r6ryryrrzrD	srcs*eZdZdZ�fdd�Zddd�Z�ZS)rz(
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    cs*tt|���d|_d|_d|_d|_dS)NrTFzUnmatchable token)rrr�r�r�r�r�r�rryrzr�S	s
zNoMatch.__init__TcCst|||j|��dSr�)r!r�r�ryryrzr�Z	szNoMatch.parseImpl)T�r�r�r�r�r�r�r3ryryrrzrO	srcs*eZdZdZ�fdd�Zddd�Z�ZS)ra�
    Token to exactly match a specified string.
    
    Example::
        Literal('blah').parseString('blah')  # -> ['blah']
        Literal('blah').parseString('blahfooblah')  # -> ['blah']
        Literal('blah').parseString('bla')  # -> Exception: Expected "blah"
    
    For case-insensitive matching, use L{CaselessLiteral}.
    
    For keyword matching (force word break before and after the matched string),
    use L{Keyword} or L{CaselessKeyword}.
    cs�tt|���||_t|�|_z|d|_Wn(tyTtj	dt
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�zLiteral.__init__TcCsJ|||jkr6|jdks&|�|j|�r6||j|jfSt|||j|��dSr�)r;r:�
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     - C{Keyword("if")} will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
    Accepts two optional constructor arguments in addition to the keyword string:
     - C{identChars} is a string of characters that would be valid identifier characters,
          defaulting to all alphanumerics + "_" and "$"
     - C{caseless} allows case-insensitive matching, default is C{False}.
       
    Example::
        Keyword("start").parseString("start")  # -> ['start']
        Keyword("start").parseString("starting")  # -> Exception

    For case-insensitive matching, use L{CaselessKeyword}.
    �_$NFcs�tt|���|durtj}||_t|�|_z|d|_Wn"ty\t	j
dtdd�Yn0d|j|_d|j|_
d|_d|_||_|r�|��|_|��}t|�|_dS)Nrz2null string passed to Keyword; use Empty() insteadrsr�r8r�F)rrr��DEFAULT_KEYWORD_CHARSr9r�r:r;r�r�r�r�r�r�r�r��caseless�upper�
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�
zKeyword.__init__TcCs|jr|||||j���|jkr�|t|�|jksL|||j��|jvr�|dksj||d��|jvr�||j|jfSnv|||jkr�|jdks�|�|j|�r�|t|�|jks�|||j|jvr�|dks�||d|jvr�||j|jfSt	|||j
|��dSr�)rAr:rBrCr�rDr9r;r>r!r�r�ryryrzr��	s4����������zKeyword.parseImplcstt|���}tj|_|Sr�)rrr�r@rD)r�r�rryrzr��	szKeyword.copycCs
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        N)rr@ruryryrz�setDefaultKeywordChars�	szKeyword.setDefaultKeywordChars)NF)T)r�r�r�r�r5r@r�r�r�r1rEr3ryryrrzr�	s
rcs*eZdZdZ�fdd�Zddd�Z�ZS)r
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    Token to match a specified string, ignoring case of letters.
    Note: the matched results will always be in the case of the given
    match string, NOT the case of the input text.

    Example::
        OneOrMore(CaselessLiteral("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD', 'CMD']
        
    (Contrast with example for L{CaselessKeyword}.)
    cs6tt|��|���||_d|j|_d|j|_dS)Nz'%s'r�)rr
r�rB�returnStringr�r�r<rryrzr��	szCaselessLiteral.__init__TcCs@||||j���|jkr,||j|jfSt|||j|��dSr�)r:rBr9rFr!r�r�ryryrzr��	szCaselessLiteral.parseImpl)Tr7ryryrrzr
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cs,eZdZdZd�fdd�	Zd	dd�Z�ZS)
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    Caseless version of L{Keyword}.

    Example::
        OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD']
        
    (Contrast with example for L{CaselessLiteral}.)
    Ncstt|�j||dd�dS)NT�rA)rr	r�)r�r=rDrryrzr��	szCaselessKeyword.__init__TcCsj||||j���|jkrV|t|�|jksF|||j��|jvrV||j|jfSt|||j|��dSr�)r:rBrCr�rDr9r!r�r�ryryrzr��	s��zCaselessKeyword.parseImpl)N)Tr7ryryrrzr	�	sr	cs,eZdZdZd�fdd�	Zd	dd�Z�ZS)
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    A variation on L{Literal} which matches "close" matches, that is, 
    strings with at most 'n' mismatching characters. C{CloseMatch} takes parameters:
     - C{match_string} - string to be matched
     - C{maxMismatches} - (C{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:
     - C{mismatches} - a list of the positions within the match_string where mismatches were found
     - C{original} - the original match_string used to compare against the input string
    
    If C{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']})
    r�csBtt|���||_||_||_d|j|jf|_d|_d|_dS)Nz&Expected %r (with up to %d mismatches)F)	rrnr�r��match_string�
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szCloseMatch.__init__TcCs�|}t|�}|t|j�}||kr�|j}d}g}	|j}
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||
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krNq�qN|d}t|||�g�}|j|d<|	|d<||fSt|||j|��dS)Nrr��original�
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    Token for matching words composed of allowed character sets.
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    defaults to the initial character set), and an optional minimum,
    maximum, and/or exact length.  The default value for C{min} is 1 (a
    minimum value < 1 is not valid); the default values for C{max} and C{exact}
    are 0, meaning no maximum or exact length restriction. An optional
    C{excludeChars} parameter can list characters that might be found in 
    the input C{bodyChars} string; useful to define a word of all printables
    except for one or two characters, for instance.
    
    L{srange} is useful for defining custom character set strings for defining 
    C{Word} expressions, using range notation from regular expression character sets.
    
    A common mistake is to use C{Word} to match a specific literal string, as in 
    C{Word("Address")}. Remember that C{Word} uses the string argument to define
    I{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 L{Literal} or L{Keyword}.

    pyparsing includes helper strings for building Words:
     - L{alphas}
     - L{nums}
     - L{alphanums}
     - L{hexnums}
     - L{alphas8bit} (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.)
     - L{punc8bit} (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.)
     - L{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=",")
    Nr�rFcs�tt|����rFd��fdd�|D��}|rFd��fdd�|D��}||_t|�|_|rl||_t|�|_n||_t|�|_|dk|_	|dkr�t
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|j|jv�r�|dk�r�|dk�r�|dk�r�|j|jk�r8dt|j�|_nHt|j�dk�rfdt�|j�t|j�f|_nd
t|j�t|j�f|_|j�r�d|jd|_zt�|j�|_Wnt�y�d|_Yn0dS)Nr�c3s|]}|�vr|VqdSr�ryr���excludeCharsryrzr�`
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2zWord.parseImplcstztt|���WSty"Yn0|jdurndd�}|j|jkr^d||j�||j�f|_nd||j�|_|jS)NcSs$t|�dkr|dd�dS|SdS)N��...r��r�ryryrz�
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    named parse results.

    Example::
        realnum = Regex(r"[+-]?\d+\.\d*")
        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
        # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
        roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")
    z[A-Z]rcs�tt|���t|t�r�|s,tjdtdd�||_||_	zt
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z�The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags.z0null string passed to Regex; use Empty() insteadrsr��$invalid pattern (%s) passed to RegexzCRegex may only be constructed with a string or a compiled RE objectr�FTN)rr)r�r}r�r�r�r��pattern�flagsr�r^r\�
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zRegex.__init__TcCs`|j�||�}|s"t|||j|��|��}|��}t|���}|rX|D]}||||<qF||fSr�)r�r9r!r�rb�	groupdictr$rc)r�rSr�r�r/�dr�r�ryryrzr��
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r)cs8eZdZdZd�fdd�	Zddd�Z�fd	d
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    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=C{None})
        - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=C{None})
        - multiline - boolean indicating whether quotes can span multiple lines (default=C{False})
        - unquoteResults - boolean indicating whether the matched text should be unquoted (default=C{True})
        - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=C{None} => same as quoteChar)
        - convertWhitespaceEscapes - convert escaped whitespace (C{'\t'}, C{'\n'}, etc.) to actual whitespace (default=C{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']]
    NFTc
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zQuotedString.__init__c	Cs�|||jkr|j�||�pd}|s4t|||j|��|��}|��}|jr�||j|j	�}t
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�D]\}}|�||�}q�|jr�t�|jd|�}|jr�|�|j|j�}||fS)N�\�	r2��
)�\tr)z\fz\rz\g<1>)rvr�r9r!r�rbrcrzrurwr}r�r{r�r�rxr�r~ryrq)	r�rSr�r�r/r�Zws_mapZwslitZwscharryryrzr�ps* 
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    minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
    minimum value < 1 is not valid); the default values for C{max} and C{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|���d|_||_|dkr*td��||_|dkr@||_nt|_|dkrZ||_||_t	|�|_
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    z<SPC>z<TAB>z<LF>z<CR>z<FF>)r*r�r2r�r�� 	
r�rcs�tt����|�_��d��fdd��jD���d�dd��jD���_d�_d�j�_	|�_
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matchWhiter�r�ryrzr��r|z!White.__init__.<locals>.<genexpr>css|]}tj|VqdSr�)r0�	whiteStrsr�ryryrzr��r|Tr�r)
rr0r�r�rr�r�r�r�r�rXrYr2)r��wsr_r`rarr�rzr��s zWhite.__init__TcCs�|||jvrt|||j|��|}|d7}||j}t|t|��}||krb|||jvrb|d7}qB|||jkr�t|||j|��||||�fSr�)r�r!r�rYr_r�rX)r�rSr�r�rLrMryryrzr�	s

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z_PositionToken.__init__�r�r�r�r�r3ryryrrzr�sr�cs2eZdZdZ�fdd�Zdd�Zd	dd�Z�ZS)
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        '''

        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
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zWordEnd.__init__TcCsPt|�}|dkrH||krH|||jvs8||d|jvrHt|||j|��|gfSr�)r�r�r!r�)r�rSr�r�r�ryryrzr��s�zWordEnd.parseImpl)Tr�ryryrrzr2�sr2cs�eZdZdZd�fdd�	Zdd�Zdd�Zd	d
�Z�fdd�Z�fd
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�rxt|�}tdd�|D��rlttj|�}t|�|_	n*zt|�|_	Wnt
y�|g|_	Yn0d|_dS)Ncss|]}t|t�VqdSr�)r}r�)r�rTryryrzr��r|z+ParseExpression.__init__.<locals>.<genexpr>F)rr"r�r}r�r�r�r&rx�exprsr�allr�r�r��r�r�r�rryrzr��s


zParseExpression.__init__cCs
|j|Sr�)r�r�ryryrzr��szParseExpression.__getitem__cCs|j�|�d|_|Sr�)r�rr|r"ryryrzr�szParseExpression.appendcCs0d|_dd�|jD�|_|jD]}|��q|S)z~Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
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zParseExpression.leaveWhitespacecsrt|t�rB||jvrntt|��|�|jD]}|�|jd�q*n,tt|��|�|jD]}|�|jd�qX|Sr�)r}r-r�rr"rr�)r�rr�rryrzr�s



zParseExpression.ignorecsLztt|���WSty"Yn0|jdurFd|jjt|j�f|_|jS�Nz%s:(%s))	rr"r�rqr|rnr�r�r�r�rryrzr��s
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|�|_|S)Nrsrr�rtr�)rr"r�r�r�r}rnrzr}r�r|r�r�r�r�)r�r�rrryrzr��s<


���
���zParseExpression.streamlinecstt|��||�}|Sr�)rr"r�)r�r�r�r�rryrzr�
szParseExpression.setResultsNamecCs6|dd�|g}|jD]}|�|�q|�g�dSr�)r�rr)r�r�tmpr�ryryrzr
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zParseExpression.validatecs$tt|���}dd�|jD�|_|S)NcSsg|]}|���qSryrr�ryryrzr�%
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szParseExpression.copy)F)F)r�r�r�r�r�r�rrrr�r�r�rr�r3ryryrrzr"�s	
"r"csTeZdZdZGdd�de�Zd�fdd�	Zddd�Zd	d
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    Requires all given C{ParseExpression}s to be found in the given order.
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    May also be constructed using the C{'-'} operator, which will suppress backtracking.

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

        expr = And([integer("id"),name_expr("name"),integer("age")])
        # more easily written as:
        expr = integer("id") + name_expr("name") + integer("age")
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szAnd._ErrorStop.__init__r�ryryrrzr�8
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r|zAnd.__init__.<locals>.<genexpr>rT)
rrr�r�r�r�rr�rr�r�rryrzr�>
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zAnd.__init__c	Cs�|jdj|||dd�\}}d}|jdd�D]�}t|tj�rDd}q.|r�z|�|||�\}}Wq�tyr�Yq�ty�}zd|_t�|��WYd}~q�d}~0t	y�t|t
|�|j|��Yq�0n|�|||�\}}|s�|��r.||7}q.||fS)NrFr�r�T)
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zAnd.__iadd__cCs6|dd�|g}|jD]}|�|�|jsq2qdSr�)r�rr��r�r��subRecCheckListr�ryryrzrc
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zAnd.checkRecursioncCs@t|d�r|jS|jdur:dd�dd�|jD��d|_|jS)Nr��{r*css|]}t|�VqdSr�r�r�ryryrzr�o
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 zAnd.__str__)T)T)r�r�r�r�rr�r�r�r!rr�r3ryryrrzr(
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rcsDeZdZdZd�fdd�	Zddd�Zdd	�Zd
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    Requires that at least one C{ParseExpression} is found.
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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|��||�|jr0tdd�|jD��|_nd|_dS)Ncss|]}|jVqdSr�r�r�ryryrzr��
r|zOr.__init__.<locals>.<genexpr>T)rrr�r�rCr�r�rryrzr��
szOr.__init__TcCsTd}d}g}|jD]�}z|�||�}Wnvtyd}	z&d|	_|	j|krP|	}|	j}WYd}	~	qd}	~	0ty�t|�|kr�t|t|�|j|�}t|�}Yq0|�||f�q|�r*|j	dd�d�|D]`\}
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|||�WSt�y&}	z(d|	_|	j|k�r|	}|	j}WYd}	~	q�d}	~	00q�|du�rB|j|_|�nt||d|��dS)NrtcSs
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 z
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    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|��||�|jr0tdd�|jD��|_nd|_dS)Ncss|]}|jVqdSr�r�r�ryryrzr��
r|z&MatchFirst.__init__.<locals>.<genexpr>T)rrr�r�rCr�r�rryrzr��
szMatchFirst.__init__Tc	Cs�d}d}|jD]�}z|�|||�}|WStyb}z |j|krN|}|j}WYd}~qd}~0ty�t|�|kr�t|t|�|j|�}t|�}Yq0q|dur�|j|_|�nt||d|��dS)Nrtr�)r�r�r!r�r�r�r�r�)	r�rSr�r�r�r�r�r�r�ryryrzr��
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 zMatchFirst.__str__cCs,|dd�|g}|jD]}|�|�qdSr�r�r�ryryrzrs
zMatchFirst.checkRecursion)F)T)
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        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
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zParseElementEnhance.validatecsVztt|���WSty"Yn0|jdurP|jdurPd|jjt|j�f|_|jSr�)	rr r�rqr|rTrnr�r�r�rryrzr��szParseElementEnhance.__str__)F)T)
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r cs*eZdZdZ�fdd�Zddd�Z�ZS)ra�
    Lookahead matching of the given parse expression.  C{FollowedBy}
    does I{not} advance the parsing position within the input string, it only
    verifies that the specified parse expression matches at the current
    position.  C{FollowedBy} always returns a null token list.

    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|��|�d|_dSr�)rrr�r��r�rTrryrzr��szFollowedBy.__init__TcCs|j�||�|gfSr�)rTr�r�ryryrzr��szFollowedBy.parseImpl)Tr7ryryrrzr�srcs2eZdZdZ�fdd�Zd	dd�Zdd�Z�ZS)
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    Lookahead to disallow matching with the given parse expression.  C{NotAny}
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    verifies that the specified parse expression does I{not} match at the current
    position.  Also, C{NotAny} does I{not} skip over leading whitespace. C{NotAny}
    always returns a null token list.  May be constructed using the '~' operator.

    Example::
        
    cs0tt|��|�d|_d|_dt|j�|_dS)NFTzFound unwanted token, )rrr�rr�r�rTr�r�rryrzr��szNotAny.__init__TcCs&|j�||�rt|||j|��|gfSr�)rTr�r!r�r�ryryrzr��szNotAny.parseImplcCs4t|d�r|jS|jdur.dt|j�d|_|jS)Nr�z~{r��r�r�r|r�rTr�ryryrzr�s


zNotAny.__str__)Trhryryrrzr�s

rcs(eZdZd�fdd�	Zddd�Z�ZS)	�_MultipleMatchNcsFtt|��|�d|_|}t|t�r.t�|�}|dur<|nd|_dSr�)	rr�r�r~r}r�r&rx�	not_ender)r�rT�stopOnZenderrryrzr�s

z_MultipleMatch.__init__Tc	Cs�|jj}|j}|jdu}|r$|jj}|r2|||�||||dd�\}}zV|j}	|r`|||�|	rp|||�}
n|}
|||
|�\}}|s�|��rR||7}qRWnttfy�Yn0||fS�NFr�)	rTr�r�r�r�r�r
r!r�)r�rSr�r�Zself_expr_parseZself_skip_ignorablesZcheck_enderZ
try_not_enderr�ZhasIgnoreExprsr�Z	tmptokensryryrzr�s*



z_MultipleMatch.parseImpl)N)T)r�r�r�r�r�r3ryryrrzr�
sr�c@seZdZdZdd�ZdS)ra�
    Repetition of one or more of the given expression.
    
    Parameters:
     - expr - expression that must match one or more times
     - stopOn - (default=C{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|jdur.dt|j�d|_|jS)Nr�r�z}...r�r�ryryrzr�Js


zOneOrMore.__str__N)r�r�r�r�r�ryryryrzr0srcs8eZdZdZd
�fdd�	Zd�fdd�	Zdd	�Z�ZS)r4aw
    Optional repetition of zero or more of the given expression.
    
    Parameters:
     - expr - expression that must match zero or more times
     - stopOn - (default=C{None}) - expression for a terminating sentinel
          (only required if the sentinel would ordinarily match the repetition 
          expression)          

    Example: similar to L{OneOrMore}
    Ncstt|�j||d�d|_dS)N)r�T)rr4r�r�)r�rTr�rryrzr�_szZeroOrMore.__init__Tc	s:ztt|��|||�WSttfy4|gfYS0dSr�)rr4r�r!r�r�rryrzr�cszZeroOrMore.parseImplcCs4t|d�r|jS|jdur.dt|j�d|_|jS)Nr�r$�]...r�r�ryryrzr�is


zZeroOrMore.__str__)N)Trhryryrrzr4Ssr4c@s eZdZdd�ZeZdd�ZdS)�
_NullTokencCsdSr�ryr�ryryrzr�ssz_NullToken.__bool__cCsdSr�ryr�ryryrzr�vsz_NullToken.__str__N)r�r�r�r�rMr�ryryryrzr�rsr�cs6eZdZdZef�fdd�	Zd	dd�Zdd�Z�ZS)
raa
    Optional 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)NFr5T)rrr�rTr~rr�)r�rTrrryrzr��s
zOptional.__init__Tc	Csxz|jj|||dd�\}}WnRttfyn|jturf|jjr\t|jg�}|j||jj<qj|jg}ng}Yn0||fSr�)rTr�r!r�r�_optionalNotMatchedr}r$)r�rSr�r�r�ryryrzr��s


zOptional.parseImplcCs4t|d�r|jS|jdur.dt|j�d|_|jS)Nr�r$r'r�r�ryryrzr��s


zOptional.__str__)T)	r�r�r�r�r�r�r�r�r3ryryrrzrzs"
rcs,eZdZdZd	�fdd�	Zd
dd�Z�ZS)r*a�	
    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=C{False}) if True, the target expression is also parsed 
          (the skipped text and target expression are returned as a 2-element list).
     - ignore - (default=C{None}) used to define grammars (typically quoted strings and 
          comments) that might contain false matches to the target expression
     - failOn - (default=C{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|��|�||_d|_d|_||_d|_t|t	�rFt
�|�|_n||_dt
|j�|_dS)NTFzNo match found for )rr*r��
ignoreExprr�r��includeMatchr�r}r�r&rx�failOnr�rTr�)r�rZincluderr�rryrzr��s
zSkipTo.__init__Tc	Cs"|}t|�}|j}|jj}|jdur,|jjnd}|jdurB|jjnd}	|}
|
|kr�|durf|||
�rfq�|	dur�z|	||
�}
Wqnty�Yq�Yqn0qnz|||
ddd�Wq�tt	fy�|
d7}
YqJ0q�qJt|||j
|��|
}|||�}t|�}|j�r||||dd�\}}
||
7}||fS)NF)r�r�r�r�)
r�rTr�r�r�r�r�rr!r�r�r$r�)r�rSr�r�rVr�rTZ
expr_parseZself_failOn_canParseNextZself_ignoreExpr_tryParseZtmplocZskiptextZ
skipresultrOryryrzr��s:
zSkipTo.parseImpl)FNN)Tr7ryryrrzr*�s6
r*csbeZdZdZd�fdd�	Zdd�Zdd�Zd	d
�Zdd�Zgfd
d�Z	dd�Z
�fdd�Z�ZS)raK
    Forward declaration of an expression to be defined later -
    used for recursive grammars, such as algebraic infix notation.
    When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.

    Note: take care when assigning to C{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 C{Forward}::
        fwdExpr << (a | b | c)
    Converting to use the '<<=' operator instead will avoid this problem.

    See L{ParseResults.pprint} for an example of a recursive parser created using
    C{Forward}.
    Ncstt|�j|dd�dSr4)rrr�r"rryrzr�@szForward.__init__cCsjt|t�rt�|�}||_d|_|jj|_|jj|_|�|jj	�|jj
|_
|jj|_|j�
|jj�|Sr�)r}r�r&rxrTr|r�r�rr�rr~r�rr"ryryrz�
__lshift__Cs





zForward.__lshift__cCs||>Sr�ryr"ryryrz�__ilshift__PszForward.__ilshift__cCs
d|_|Sr�r
r�ryryrzrSszForward.leaveWhitespacecCs$|js d|_|jdur |j��|Sr�)r�rTr�r�ryryrzr�Ws


zForward.streamlinecCs>||vr0|dd�|g}|jdur0|j�|�|�g�dSr�r�r�ryryrzr^s

zForward.validatecCs^t|d�r|jS|jjdSz&|jdur4t|j�}nd}W|j|_n
|j|_0|jjd|S)Nr�z: ...�Nonez: )r�r�rnr�Z_revertClass�_ForwardNoRecurserTr�)r�Z	retStringryryrzr�es

zForward.__str__cs.|jdurtt|���St�}||K}|SdSr�)rTrrr�r1rryrzr�vs

zForward.copy)N)
r�r�r�r�r�r�r�rr�rr�r�r3ryryrrzr-s
rc@seZdZdd�ZdS)r�cCsdS)Nreryr�ryryrzr�sz_ForwardNoRecurse.__str__N)r�r�r�r�ryryryrzr�~sr�cs"eZdZdZd�fdd�	Z�ZS)r/zQ
    Abstract subclass of C{ParseExpression}, for converting parsed results.
    Fcstt|��|�d|_dSr�)rr/r�r~r�rryrzr��szTokenConverter.__init__)Fr6ryryrrzr/�sr/cs6eZdZdZd
�fdd�	Z�fdd�Zdd	�Z�ZS)ra�
    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 C{'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|��|�|r|��||_d|_||_d|_dSr�)rrr�r�adjacentr�
joinStringr�)r�rTr�r�rryrzr��szCombine.__init__cs(|jrt�||�ntt|��|�|Sr�)r�r&rrrr"rryrzr�szCombine.ignorecCsP|��}|dd�=|td�|�|j��g|jd�7}|jrH|��rH|gS|SdS)Nr�)r�)r�r$r�r(r�r�r}r
)r�rSr�r�ZretToksryryrzr��s
"zCombine.postParse)r�T)r�r�r�r�r�rr�r3ryryrrzr�s
rcs(eZdZdZ�fdd�Zdd�Z�ZS)ra�
    Converter to return the matched tokens as a list - useful for returning tokens of C{L{ZeroOrMore}} and C{L{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|��|�d|_dSr�)rrr�r~r�rryrzr��szGroup.__init__cCs|gSr�ryr�ryryrzr��szGroup.postParse�r�r�r�r�r�r�r3ryryrrzr�s
rcs(eZdZdZ�fdd�Zdd�Z�ZS)r
aW
    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 L{ParseResults} of accessing fields by results name.
    cstt|��|�d|_dSr�)rr
r�r~r�rryrzr��sz
Dict.__init__cCs�t|�D]�\}}t|�dkrq|d}t|t�r@t|d���}t|�dkr\td|�||<qt|�dkr�t|dt�s�t|d|�||<q|��}|d=t|�dks�t|t�r�|�	�r�t||�||<qt|d|�||<q|j
r�|gS|SdS)Nrr�r�rs)r�r�r}rvr�r�r�r$r�r
r})r�rSr�r�r��tokZikeyZ	dictvalueryryrzr��s$
zDict.postParser�ryryrrzr
�s#r
c@s eZdZdZdd�Zdd�ZdS)r-aV
    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 L{delimitedList}.)
    cCsgSr�ryr�ryryrzr�szSuppress.postParsecCs|Sr�ryr�ryryrzr"szSuppress.suppressN)r�r�r�r�r�rryryryrzr-sr-c@s(eZdZdZdd�Zdd�Zdd�ZdS)	rzI
    Wrapper for parse actions, to ensure they are only called once.
    cCst|�|_d|_dSr�)rs�callable�called)r�Z
methodCallryryrzr�*s
zOnlyOnce.__init__cCs.|js|�|||�}d|_|St||d��dS)NTr�)r�r�r!)r�r�r\rxrPryryrzr-s
zOnlyOnce.__call__cCs
d|_dSr�)r�r�ryryrz�reset3szOnlyOnce.resetN)r�r�r�r�r�rr�ryryryrzr&srcs8t����fdd�}z�j|_Wnty2Yn0|S)at
    Decorator for debugging parse actions. 
    
    When the parse action is called, this decorator will print C{">> entering I{method-name}(line:I{current_source_line}, I{parse_location}, I{matched_tokens})".}
    When the parse action completes, the decorator will print C{"<<"} 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']
    c
s��j}|dd�\}}}t|�dkr8|djjd|}tj�d|t||�||f�z�|�}Wn:ty�}z"tj�d||f��WYd}~n
d}~00tj�d||f�|S)Nr_rqr�.z">>entering %s(line: '%s', %d, %r)
z<<leaving %s (exception: %s)
z<<leaving %s (ret: %r)
)r�r�rnr��stderr�writerIrq)ZpaArgsZthisFuncr�r\rxr�rY�rryrz�zLsztraceParseAction.<locals>.z)rsr�r�)rr�ryr�rzrd6s
rd�,FcCs`t|�dt|�dt|�d}|rBt|t||���|�S|tt|�|��|�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 C{combine=True} in the constructor.
    If C{combine} is set to C{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*r�N)r�rr4r�r-)rT�delim�combineZdlNameryryrzrBbs
$rBcsjt����fdd�}|dur0tt��dd��}n|��}|�d�|j|dd�|��d	t��d
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    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 C{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�>gSr�)rrrE)r�r\rxr��Z	arrayExprrTryrz�countFieldParseAction�s"z+countedArray.<locals>.countFieldParseActionNcSst|d�Sr�)rvrwryryrzr{�r|zcountedArray.<locals>.<lambda>ZarrayLenT�r�z(len) re)rr1rTr�r�r�r�r�)rTZintExprr�ryr�rzr>us
r>cCs6g}|D](}t|t�r&|�t|��q|�|�q|Sr�)r}r�rr�r)�Lr�r�ryryrzr��s
r�cs6t���fdd�}|j|dd���dt|���S)a*
    Helper 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 C{"1:1"}, but not C{"1:2"}.  Because this matches a
    previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
    If this is not desired, use C{matchPreviousExpr}.
    Do I{not} use with packrat parsing enabled.
    csP|rBt|�dkr�|d>qLt|���}�tdd�|D��>n
�t�>dS)Nr�rcss|]}t|�VqdSr�)r�r��ttryryrzr��r|zDmatchPreviousLiteral.<locals>.copyTokenToRepeater.<locals>.<genexpr>)r�r�r�rr)r�r\rxZtflat�Zrepryrz�copyTokenToRepeater�sz1matchPreviousLiteral.<locals>.copyTokenToRepeaterTr��(prev) )rr�r�r�)rTr�ryr�rzrQ�s


rQcsFt��|��}�|K��fdd�}|j|dd���dt|���S)aS
    Helper 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 C{"1:1"}, but not C{"1:2"}.  Because this matches by
    expressions, will I{not} match the leading C{"1:1"} in C{"1:10"};
    the expressions are evaluated first, and then compared, so
    C{"1"} is compared with C{"10"}.
    Do I{not} use with packrat parsing enabled.
    cs*t|�����fdd�}�j|dd�dS)Ncs$t|���}|�kr tddd��dS)Nr�r)r�r�r!)r�r\rxZtheseTokens�ZmatchTokensryrz�mustMatchTheseTokens�szLmatchPreviousExpr.<locals>.copyTokenToRepeater.<locals>.mustMatchTheseTokensTr�)r�r�r�)r�r\rxr�r�r�rzr��sz.matchPreviousExpr.<locals>.copyTokenToRepeaterTr�r�)rr�r�r�r�)rT�e2r�ryr�rzrP�srPcCs:dD]}|�|t|�}q|�dd�}|�dd�}t|�S)Nz\^-]r2r)r�r�)r��_bslashr�)r�r�ryryrzr[�s
r[Tc
s�|rdd�}dd�}t�ndd�}dd�}t�g}t|t�rF|��}n$t|t�rZt|�}ntjdt	dd�|stt
�Sd	}|t|�d
k�r||}t||d
d��D]R\}}	||	|�r�|||d
=qxq�|||	�r�|||d
=|�
||	�|	}qxq�|d
7}qx|�s�|�r�zlt|�td�|��k�rTtd
d�dd�|D����d�|��WStd�dd�|D����d�|��WSWn$t�y�tjdt	dd�Yn0t�fdd�|D���d�|��S)a�
    Helper 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 C{L{MatchFirst}} for best performance.

    Parameters:
     - strs - a string of space-delimited literals, or a collection of string literals
     - caseless - (default=C{False}) - treat all literals as caseless
     - useRegex - (default=C{True}) - as an optimization, will generate a Regex
          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
          if creating a C{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|��|��kSr�)rB�r�bryryrzr{�r|zoneOf.<locals>.<lambda>cSs|���|���Sr�)rBr>r�ryryrzr{�r|cSs||kSr�ryr�ryryrzr{�r|cSs
|�|�Sr�)r>r�ryryrzr{�r|z6Invalid argument to oneOf, expected string or iterablersr�rr�Nr�z[%s]css|]}t|�VqdSr�)r[�r�Zsymryryrzr�r|zoneOf.<locals>.<genexpr>r��|css|]}t�|�VqdSr�)r�r]r�ryryrzr�r|z7Exception creating Regex for oneOf, building MatchFirstc3s|]}�|�VqdSr�ryr��ZparseElementClassryrzr�$r|)r
rr}r�r�rr�r�r�r�rr�r�rr�r)r�rqr)
ZstrsrAZuseRegexZisequalZmasksZsymbolsr�Zcurr�rryr�rzrU�sP



�


**�rUcCsttt||���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 C{L{Dict}}, C{L{ZeroOrMore}}, and C{L{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 C{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'}
    )r
r4r)rr�ryryrzrC&s!rCcCs^t��dd��}|��}d|_|d�||d�}|r@dd�}ndd�}|�|�|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 C{asString} argument is passed as C{False}, then the return value is a 
    C{L{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 C{L{originalTextFor}} contains expressions with defined
    results names, you must set C{asString} to C{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|Sr�ry)r�r�rxryryrzr{ar|z!originalTextFor.<locals>.<lambda>F�_original_start�
_original_endcSs||j|j�Sr�)r�r�r[ryryrzr{fr|cSs&||�d�|�d��g|dd�<dS)Nr�r�)rr[ryryrz�extractTexthsz$originalTextFor.<locals>.extractText)rr�r�r�r�)rTZasStringZ	locMarkerZendlocMarker�	matchExprr�ryryrzriIs

ricCst|��dd��S)zp
    Helper to undo pyparsing's default grouping of And expressions, even
    if all but one are non-empty.
    cSs|dSr�ryrwryryrzr{sr|zungroup.<locals>.<lambda>)r/r�)rTryryrzrjnsrjcCs4t��dd��}t|d�|d�|����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 C{<TAB>} characters, you may want to call
    C{L{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|Sr�ryr[ryryrzr{�r|zlocatedExpr.<locals>.<lambda>Z
locn_startr�Zlocn_end)rr�rr�r)rTZlocatorryryrzrlusrlrErKrJrcrbz\[]-*.$+^?()~ �racCs|ddSr�ryr[ryryrzr{�r|r{z\\0?[xX][0-9a-fA-F]+cCstt|d�d�d��S)Nrz\0x�)�unichrrv�lstripr[ryryrzr{�r|z	\\0[0-7]+cCstt|ddd�d��S)Nrr��)r�rvr[ryryrzr{�r|z\]r�r$r+�negate�bodyr'csDdd��z"d��fdd�t�|�jD��WSty>YdS0dS)a�
    Helper to easily define string ranges for use in Word construction.  Borrows
    syntax from regexp '[]' string range definitions::
        srange("[0-9]")   -> "0123456789"
        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
        srange("[a-z$_]") -> "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 C{\-} or C{\]})
     - an escaped hex character with a leading C{'\x'} (C{\x21}, which is a C{'!'} character) 
         (C{\0x##} is also supported for backwards compatibility) 
     - an escaped octal character with a leading C{'\0'} (C{\041}, which is a C{'!'} character)
     - a range of any of the above, separated by a dash (C{'a-z'}, etc.)
     - any combination of the above (C{'aeiouy'}, C{'a-zA-Z0-9_$'}, etc.)
    cSs<t|t�s|Sd�dd�tt|d�t|d�d�D��S)Nr�css|]}t|�VqdSr�)r�r�ryryrzr��r|z+srange.<locals>.<lambda>.<locals>.<genexpr>rr�)r}r$r�r��ord)�pryryrzr{�r|zsrange.<locals>.<lambda>r�c3s|]}�|�VqdSr�ry)r��part�Z	_expandedryrzr��r|zsrange.<locals>.<genexpr>N)r��_reBracketExprr�r�rqrfryr�rzra�s
"racs�fdd�}|S)zt
    Helper 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 %dr�)rOZlocnrWr�ryrz�	verifyCol�sz!matchOnlyAtCol.<locals>.verifyColry)r�r�ryr�rzrO�srOcs�fdd�S)a�
    Helper method for common parse actions that simply return a literal value.  Especially
    useful when used with C{L{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�gSr�ryr[�ZreplStrryrzr{�r|zreplaceWith.<locals>.<lambda>ryr�ryr�rzr^�sr^cCs|ddd�S)a
    Helper 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�rtryr[ryryrzr\�sr\csL��fdd�}zt�dt�d�j�}Wnty@t��}Yn0||_|S)aG
    Helper 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 C{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 L{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|]}�|g��R��qSryry)r�Ztokn�r�r]ryrzr��r|z(tokenMap.<locals>.pa.<locals>.<listcomp>ryr[r�ryrzr��sztokenMap.<locals>.par�rn)rpr�rqr~)r]r�r�rrryr�rzro�s 
�rocCst|���Sr��r�rBrwryryrzr{r|cCst|���Sr��r��lowerrwryryrzr{r|c	Cs�t|t�r|}t||d�}n|j}tttd�}|r�t���	t
�}td�|d�tt
t|td�|���tddgd��d	��	d
d��td�}n�d
�dd�tD��}t���	t
�t|�B}td�|d�tt
t|�	t�ttd�|����tddgd��d	��	dd��td�}ttd�|d�}|�dd
�|�dd��������d|�}|�dd
�|�dd��������d|�}||_||_||fS)zRInternal helper to construct opening and closing tag expressions, given a tag namerGz_-:r5�tag�=�/F�rrEcSs|ddkS�Nrrryr[ryryrzr{r|z_makeTags.<locals>.<lambda>r6r�css|]}|dvr|VqdS)r6Nryr�ryryrzr�r|z_makeTags.<locals>.<genexpr>cSs|ddkSrryr[ryryrzr{r|r7rL�:r*z<%s>rbz</%s>)r}r�rr�r1r6r5r@r�r�r\r-r
r4rrr�r�rXr[rDr�_Lr��titler�r�r)�tagStrZxmlZresnameZtagAttrNameZtagAttrValueZopenTagZprintablesLessRAbrackZcloseTagryryrz�	_makeTagss>
�������..r	cCs
t|d�S)a 
    Helper 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="http://pyparsing.wikispaces.com">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 -> http://pyparsing.wikispaces.com
    F�r	�rryryrzrM(srMcCs
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 L{makeHTMLTags}
    Tr
rryryrzrN;srNcs8|r|dd��n|���dd��D���fdd�}|S)a<
    Helper to create a validating parse action to be used with start tags created
    with C{L{makeXMLTags}} or C{L{makeHTMLTags}}. Use C{withAttribute} to qualify a starting tag
    with a required attribute value, to avoid false matches on common tags such as
    C{<TD>} or C{<DIV>}.

    Call C{withAttribute} with a series of attribute names and values. Specify the list
    of filter attributes names and values as:
     - keyword arguments, as in C{(align="right")}, or
     - as an explicit dict with C{**} operator, when an attribute name is also a Python
          reserved word, as in C{**{"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 C{class} (with or without a namespace), use C{L{withClass}}.

    To verify that the attribute exists, but without specifying a value, pass
    C{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�qSryryr/ryryrzr�zr|z!withAttribute.<locals>.<listcomp>csZ�D]P\}}||vr$t||d|��|tjkr|||krt||d||||f��qdS)Nzno matching attribute z+attribute '%s' has value '%s', must be '%s')r!rg�	ANY_VALUE)r�r\r�ZattrNameZ	attrValue��attrsryrzr�{s�zwithAttribute.<locals>.pa)r�)r�ZattrDictr�ryr
rzrgDs2rgcCs"|rd|nd}tfi||i��S)a�
    Simplified version of C{L{withAttribute}} when matching on a div class - made
    difficult because C{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)rg)Z	classname�	namespaceZ	classattrryryrzrm�s rm�(rrcCs�t�}||||B}t|�D�]l\}}|ddd�\}}	}
}|	dkrPd|nd|}|	dkr�|dustt|�dkr|td��|\}
}t��|�}|
tjk�r^|	d	kr�t||�t|t	|��}n�|	dk�r|dur�t|||�t|t	||��}nt||�t|t	|��}nD|	dk�rTt||
|||�t||
|||�}ntd
��n�|
tj
k�rB|	d	k�r�t|t��s�t|�}t|j
|�t||�}n�|	dk�r�|du�r�t|||�t|t	||��}nt||�t|t	|��}nD|	dk�r8t||
|||�t||
|||�}ntd
��ntd��|�rvt|ttf��rl|j|�n
|�|�||�|�|BK}|}q||K}|S)aD

    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 L{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 C{opAssoc.RIGHT} and C{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 C{setParseAction(*fn)} (L{ParserElement.setParseAction})
     - lpar - expression for matching left-parentheses (default=C{Suppress('(')})
     - rpar - expression for matching right-parentheses (default=C{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]]]
    r�Nrdrqz%s termz	%s%s termrsz@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)rr�r�rr�rV�LEFTrrr�RIGHTr}rrTrr�r�)ZbaseExprZopListZlparZrparr�ZlastExprr�ZoperDefZopExprZarityZrightLeftAssocr�ZtermNameZopExpr1ZopExpr2ZthisExprr�ryryrzrk�sZ=
&
�



&
�

rkz4"(?:[^"\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��|du�r*t|t��r"t|t��r"t|�dkr�t|�dkr�|dur�tt|t||tjdd����	dd��}n$t
��t||tj��	dd��}nx|dur�tt|t|�t|�ttjdd����	dd��}n4ttt|�t|�ttjdd����	d	d��}ntd
��t
�}|du�rd|tt|�t||B|B�t|��K}n$|tt|�t||B�t|��K}|�d||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=C{"("}); can also be a pyparsing expression
     - closer - closing character for a nested list (default=C{")"}); can also be a pyparsing expression
     - content - expression for items within the nested lists (default=C{None})
     - ignoreExpr - expression for ignoring opening and closing delimiters (default=C{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 C{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 C{L{Or}} or C{L{MatchFirst}}.
    The default is L{quotedString}, but if no expressions are to be ignored,
    then pass C{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|d��Sr��r�rwryryrzr{gr|znestedExpr.<locals>.<lambda>cSs|d��Sr�rrwryryrzr{jr|cSs|d��Sr�rrwryryrzr{pr|cSs|d��Sr�rrwryryrzr{tr|zOopening and closing arguments must be strings if no content expression is givenznested %s%s expression)rr}r�r�rrrr&rtr�rEr�rrrr-r4r�)�openerZcloserZcontentr�r�ryryrzrR%sH:
���������
*$rRcs��fdd�}�fdd�}�fdd�}tt��d����}t�t��|��d�}t��|��d	�}t��|��d
�}	|r�tt|�|t|t|�t|��|	�}
n$tt|�t|t|�t|���}
|�	t
t��|
�d�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=C{True})

    A valid block must contain at least one C{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']]]]]]] 
    csN|t|�krdSt||�}|�dkrJ|�dkr>t||d��t||d��dS)Nrtzillegal nestingznot a peer entry)r�r;r#r!�r�r\rxZcurCol��indentStackryrz�checkPeerIndent�s
z&indentedBlock.<locals>.checkPeerIndentcs2t||�}|�dkr"��|�nt||d��dS)Nrtznot a subentry)r;rr!rrryrz�checkSubIndent�s
z%indentedBlock.<locals>.checkSubIndentcsN|t|�krdSt||�}�r6|�dkr6|�dksBt||d�����dS)Nrtr`znot an unindent)r�r;r!rrrryrz�
checkUnindent�s

z$indentedBlock.<locals>.checkUnindentz	 �INDENTr�ZUNINDENTzindented block)rrrrrr�r�rrrr�)ZblockStatementExprrr9rrrrFrZPEERZUNDENTZsmExprryrrzrhs(N����rhz#[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]z[\0xa1-\0xbf\0xd7\0xf7]z_:zany tagzgt lt amp nbsp quot aposz><& "'z&(?P<entity>r�z);zcommon HTML entitycCst�|j�S)zRHelper parser action to replace common HTML entities with their special characters)�_htmlEntityMapr�Zentityrwryryrzr]�sr]z/\*(?:[^*]|\*(?!/))*z*/zC style commentz<!--[\s\S]*?-->zHTML commentz.*zrest of linez//(?:\\\n|[^\n])*z
// commentzC++ style commentz#.*zPython style commentrQ� 	�	commaItemrr<c@s�eZdZdZee�Zee�Ze	e
��d��e�Z
e	e��d��eed��Zed��d��e�Ze��e�de��e��d�Ze�d	d
��eeeed���e�B�d�Ze�e�ed
��d��e�Zed��d��e�ZeeBeB��Zed��d��e�Ze	eded��d�Zed��d�Z ed��d�Z!e!de!d�d�Z"ee!de!d�dee!de!d��d�Z#e#�$dd
��d e �d!�Z%e&e"e%Be#B�d"���d"�Z'ed#��d$�Z(e)d=d&d'��Z*e)d>d)d*��Z+ed+��d,�Z,ed-��d.�Z-ed/��d0�Z.e/��e0��BZ1e)d1d2��Z2e&e3e4d3�e5�e	e6d3d4�ee7d5�������d6�Z8e9ee:�;�e8Bd7d8���d9�Z<e)ed:d
���Z=e)ed;d
���Z>d<S)?rpa�

    Here are some common low-level expressions that may be useful in jump-starting parser development:
     - numeric forms (L{integers<integer>}, L{reals<real>}, L{scientific notation<sci_real>})
     - common L{programming identifiers<identifier>}
     - network addresses (L{MAC<mac_address>}, L{IPv4<ipv4_address>}, L{IPv6<ipv6_address>})
     - ISO8601 L{dates<iso8601_date>} and L{datetime<iso8601_datetime>}
     - L{UUID<uuid>}
     - L{comma-separated list<comma_separated_list>}
    Parse actions:
     - C{L{convertToInteger}}
     - C{L{convertToFloat}}
     - C{L{convertToDate}}
     - C{L{convertToDatetime}}
     - C{L{stripHTMLTags}}
     - C{L{upcaseTokens}}
     - C{L{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)Nrrtryrwryryrzr{�r|zpyparsing_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+)?�fnumberr��
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}zIPv4 addressz[0-9a-fA-F]{1,4}�hex_integerr�zfull IPv6 address)rriz::zshort IPv6 addresscCstdd�|D��dkS)Ncss|]}tj�|�rdVqdSr3)rp�
_ipv6_partr�r�ryryrzr��r|z,pyparsing_common.<lambda>.<locals>.<genexpr>r�)r�rwryryrzr{�r|z::ffff:zmixed IPv6 addresszIPv6 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=C{"%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)]
        c
sPzt�|d����WStyJ}zt||t|���WYd}~n
d}~00dSr�)r�strptime�daterr!r~�r�r\rx�ve��fmtryrz�cvt_fn�sz.pyparsing_common.convertToDate.<locals>.cvt_fnry�r0r1ryr/rz�
convertToDate�szpyparsing_common.convertToDate�%Y-%m-%dT%H:%M:%S.%fcs�fdd�}|S)a
        Helper to create a parse action for converting parsed datetime string to Python datetime.datetime

        Params -
         - fmt - format to be passed to datetime.strptime (default=C{"%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)]
        c
sLzt�|d��WStyF}zt||t|���WYd}~n
d}~00dSr�)rr+rr!r~r-r/ryrzr1�sz2pyparsing_common.convertToDatetime.<locals>.cvt_fnryr2ryr/rz�convertToDatetime�sz"pyparsing_common.convertToDatetimez7(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?zISO8601 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}�UUIDcCstj�|d�S)a
        Parse 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="http://pyparsing.wikispaces.com">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) # -> 'More info at the pyparsing wiki page'
        r)rp�_html_stripperr�)r�r\r�ryryrz�
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        Select AA,BB,CC from Sys.dual

        # multiple tables
        Select A, B, C from Sys.dual, Table2

        # invalid SELECT keyword - should fail
        Xelect A, B, C from Sys.dual

        # incomplete command - should fail
        Select

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        z]
        100
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        +100
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8



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