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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>!"})::

    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 parsed results returned from C{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
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            - calling C{parseWithTabs} on your grammar before calling C{parseString}
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            - define your parse action using the full C{(s,loc,toks)} signature, and
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ccs |js|jƒnx|jD]}|jƒq W|jsRt|ƒjƒ}nt|ƒ}d}|j}|j}t	j
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	c	Cs3g}d}t|_yáxŽ|j|ƒD]}\}}}|j|||!ƒ|rŸt|tƒrs||jƒ7}qŸt|tƒr||7}qŸ|j|ƒn|}q(W|j||ƒg|D]}|rÁ|^qÁ}djt	t
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cCsjt|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdSt	|t	j
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csEt|tƒr|d}}n-t|tƒr7|dd }|dd
kr_d|df}nt|dtƒrÏ|dd
krÏ|ddkrœtˆƒS|ddkr¶tˆƒSˆ|dtˆƒSqLt|dtƒrt|dtƒr|\}}||8}qLtdt|dƒt|dƒƒ‚ntdt|ƒƒ‚|dkrgtdƒ‚n|dkr‚tdƒ‚n||ko™dknrtdƒ‚n|r‡‡fd	†‰|r
|dkrêˆˆ|ƒ}qt	ˆg|ƒˆ|ƒ}qAˆ|ƒ}n(|dkr.ˆ}nt	ˆg|ƒ}|S(søImplementation of * operator, allows use of C{expr * 3} in place of
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            - C{expr*(n,None)} or C{expr*(n,)} is equivalent
              to C{expr*n + 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{ZeroOrMore(expr)}
            - C{expr*(1,None)} is equivalent to C{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}

        iiis7cannot multiply 'ParserElement' and ('%s','%s') objectss0cannot multiply 'ParserElement' and '%s' objectss/cannot multiply ParserElement by negative values@second tuple value must be greater or equal to first tuple values+cannot multiply ParserElement by 0 or (0,0)cs2|dkr$tˆˆ|dƒƒStˆƒSdS(Ni(R(tn(tmakeOptionalListR…(s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒÉsN(NN(
RjR³ttupleRR.RR·R†t
ValueErrorR(R…RÜtminElementstoptElementsRÔ((RŒR…s-/usr/lib/python2.7/site-packages/pyparsing.pyt__mul__˜sD#

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RjR´RRR„R…R†R‡RR(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__or__ßs
cCsYt|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdS||BS(sHImplementation of | operator when left operand is not a C{ParserElement}s4Cannot combine element of type %s with ParserElementRƒiN(	RjR´RRR„R…R†R‡R(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__ror__és
cCsat|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdSt	||gƒS(s,Implementation of ^ operator - returns C{Or}s4Cannot combine element of type %s with ParserElementRƒiN(
RjR´RRR„R…R†R‡RR(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__xor__ós
cCsYt|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdS||AS(sHImplementation of ^ operator when left operand is not a C{ParserElement}s4Cannot combine element of type %s with ParserElementRƒiN(	RjR´RRR„R…R†R‡R(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__rxor__ýs
cCsat|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdSt	||gƒS(s.Implementation of & operator - returns C{Each}s4Cannot combine element of type %s with ParserElementRƒiN(
RjR´RRR„R…R†R‡RR(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__and__s
cCsYt|tƒrt|ƒ}nt|tƒsQtjdt|ƒtddƒdS||@S(sHImplementation of & operator when left operand is not a C{ParserElement}s4Cannot combine element of type %s with ParserElementRƒiN(	RjR´RRR„R…R†R‡R(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__rand__s
cCs
t|ƒS(s0Implementation of ~ operator - returns C{NotAny}(R(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyt
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             userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
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             userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")
             
           If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
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																			cBs eZdZd„Zd„ZRS(sJAbstract C{ParserElement} subclass, for defining atomic matching patterns.cCstt|ƒjdtƒdS(NR8(R–R'R‡R¬(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡scCs,tt|ƒj|ƒ}d|j|_|S(Ns	Expected (R–R'R<R¨R2(R…R¨Rg((s-/usr/lib/python2.7/site-packages/pyparsing.pyR<°s(R|R}R•R‡R<(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR'«s	cBseZdZd„ZRS(s"An empty token, will always match.cCs2tt|ƒjƒd|_t|_t|_dS(NR(R–RR‡R¨R¤R,R¬R1(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡¸s		(R|R}R•R‡(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¶scBs#eZdZd„Zed„ZRS(sA token that will never match.cCs;tt|ƒjƒd|_t|_t|_d|_dS(NRsUnmatchable token(	R–RR‡R¨R¤R,R¬R1R2(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡Ás
			cCs%|j}||_||_|‚dS(N(R²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZÈs			(R|R}R•R‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¿s	cBs#eZdZd„Zed„ZRS(s*Token to exactly match a specified string.cCs«tt|ƒjƒ||_t|ƒ|_y|d|_Wn0tk
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       C{identChars} is a string of characters that would be valid identifier characters,
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    s_$cCsØtt|ƒjƒ||_t|ƒ|_y|d|_Wn'tk
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    iic	Cs•tt|ƒjƒ|rdjg|D]}||kr&|^q&ƒ}|rdjg|D]}||krZ|^qZƒ}qn||_t|ƒ|_|rº||_t|ƒ|_n||_t|ƒ|_|dk|_	|dkrüt
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           Defined with the following parameters:
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            - multiline - boolean indicating whether quotes can span multiple lines (default=False)
            - unquoteResults - boolean indicating whether the matched text should be unquoted (default=True)
            - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=None => same as quoteChar)
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    iicCsÉtt|ƒjƒt|_||_|dkr@tdƒ‚n||_|dkra||_n	t	|_|dkr‹||_||_nt
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d„Zed„ZRS(sŽSpecial matching class for matching whitespace.  Normally, whitespace is ignored
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t_PositionTokencBseZd„ZRS(cCs8tt|ƒjƒ|jj|_t|_t|_	dS(N(
R–RR‡RÀR|R¨R¤R,R¬R1(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡s	(R|R}R‡(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR
scBs,eZdZd„Zd„Zed„ZRS(sXToken to advance to a specific column of input text; useful for tabular report scraping.cCs tt|ƒjƒ||_dS(N(R–RR‡R5(R…tcolno((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡scCsŽt||ƒ|jkrŠt|ƒ}|jrB|j||ƒ}nxE||kr†||jƒr†t||ƒ|jkr†|d7}qEWn|S(Ni(R5RÀR.RVtisspace(R…RR€RX((s-/usr/lib/python2.7/site-packages/pyparsing.pyRYs	7cCs^t||ƒ}||jkr6t||d|ƒ‚n||j|}|||!}||fS(NsText not in expected column(R5R(R…RR€RDtthiscoltnewlocRÔ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ s
(R|R}R•R‡RYR¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyRs			cBs,eZdZd„Zd„Zed„ZRS(sQMatches if current position is at the beginning of a line within the parse stringcCs<tt|ƒjƒ|jtjjddƒƒd|_dS(Ns
RsExpected start of line(R–RR‡RRR!RtR2(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡*scCs<tt|ƒj||ƒ}||dkr8|d7}n|S(Ns
i(R–RRY(R…RR€R`((s-/usr/lib/python2.7/site-packages/pyparsing.pyRY/s
cCsf|dkp5||j|dƒkp5||ddks\|j}||_||_|‚n|gfS(Niis
(RYR²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ5s				(R|R}R•R‡RYR¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR(s		cBs#eZdZd„Zed„ZRS(sKMatches if current position is at the end of a line within the parse stringcCs<tt|ƒjƒ|jtjjddƒƒd|_dS(Ns
RsExpected end of line(R–RR‡RRR!RtR2(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡BscCs™|t|ƒkrT||dkr0|ddfS|j}||_||_|‚nA|t|ƒkrt|dgfS|j}||_||_|‚dS(Ns
i(RÀR²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZGs							(R|R}R•R‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR@s	cBs#eZdZd„Zed„ZRS(sCMatches if current position is at the beginning of the parse stringcCs tt|ƒjƒd|_dS(NsExpected start of text(R–R%R‡R2(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡[scCsU|dkrK||j|dƒkrK|j}||_||_|‚qKn|gfS(Ni(RYR²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ_s			(R|R}R•R‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR%Ys	cBs#eZdZd„Zed„ZRS(s=Matches if current position is at the end of the parse stringcCs tt|ƒjƒd|_dS(NsExpected end of text(R–R$R‡R2(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡lscCs—|t|ƒkr6|j}||_||_|‚n]|t|ƒkrV|dgfS|t|ƒkrr|gfS|j}||_||_|‚dS(Ni(RÀR²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZps				
			(R|R}R•R‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR$js	cBs&eZdZed„Zed„ZRS(swMatches if the current position is at the beginning of a Word, and
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    cCs/tt|ƒjƒt|ƒ|_d|_dS(NsNot at the start of a word(R–R-R‡RÆt	wordCharsR2(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡ˆscCsg|dkr]||d|jks6|||jkr]|j}||_||_|‚q]n|gfS(Nii(RR²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZs			(R|R}R•RTR‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR-scBs&eZdZed„Zed„ZRS(saMatches if the current position is at the end of a Word, and
       is not followed by any character in a given set of C{wordChars}
       (default=C{printables}). To emulate the C{} behavior of regular expressions,
       use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
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    cCs8tt|ƒjƒt|ƒ|_t|_d|_dS(NsNot at the end of a word(R–R,R‡RÆRR¬R)R2(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡žs	cCst|ƒ}|dkru||kru|||jksN||d|jkru|j}||_||_|‚qun|gfS(Nii(RÀRR²R€Rƒ(R…RR€RDRXR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ¤s			(R|R}R•RTR‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR,—scBsqeZdZed„Zd„Zd„Zd„Zd„Zd„Z	d„Z
ed„Zgd	„Zd
„Z
RS(sTAbstract subclass of ParserElement, for combining and post-processing parsed tokens.cCs•tt|ƒj|ƒt|tƒr1||_nWt|tƒrUt|ƒg|_n3yt|ƒ|_Wntk
r‡|g|_nXt	|_
dS(N(R–RR‡RjR°texprsR´RR·R¬R6(R…RR8((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡³s
cCs|j|S(N(R(R…Rž((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŸÀscCs|jj|ƒd|_|S(N(RRëRR&(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRëÃs	cCsPt|_g|jD]}|jƒ^q|_x|jD]}|jƒq8W|S(s~Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
           all contained expressions.(R¬R)RRµRœ(R…RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRœÈs
	%cCs¤t|tƒrb||jkr tt|ƒj|ƒx(|jD]}|j|jdƒq>Wq n>tt|ƒj|ƒx%|jD]}|j|jdƒq‚W|S(Niÿÿÿÿ(RjR&R.R–RRŸR(R…RÜRT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŸÑscCs\ytt|ƒjƒSWnnX|jdkrUd|jjt|jƒf|_n|jS(Ns%s:(%s)(	R–RRŒR&RRÀR|RoR(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒÝs%c	Csdtt|ƒjƒx|jD]}|jƒqWt|jƒdkr`|jd}t||jƒrÓ|jrÓ|jdkrÓ|j
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	cCstt|ƒj||ƒ}|S(N(R–RRA(R…R¨R?RÔ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRA	scCs@||g}x|jD]}|j|ƒqW|jgƒdS(N(RR¨R¦(R…R§ttmpRT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¨	scCs>tt|ƒjƒ}g|jD]}|jƒ^q|_|S(N(R–RRµR(R…RÔRT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRµ	s%(R|R}R•R¬R‡RŸRëRœRŸRŒRoRAR¨Rµ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR±s
						
	 cBsWeZdZdefd„ƒYZed„Zed„Zd„Zd„Z	d„Z
RS(s³Requires all given C{ParseExpression}s to be found in the given order.
       Expressions may be separated by whitespace.
       May be constructed using the C{'+'} operator.
    RˆcBseZd„ZRS(cOs'tt|ƒj||Ž|jƒdS(N(R–RR‡Rœ(R…RRN((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡	s(R|R}R‡(((s-/usr/lib/python2.7/site-packages/pyparsing.pyRˆ	scCs}tt|ƒj||ƒt|_x'|jD]}|js,t|_Pq,q,W|j|djƒ|dj	|_	t|_
dS(Ni(R–RR‡R¤R,RR¬RR*R)R6(R…RR8RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡!	s			c	CsG|jdj|||dtƒ\}}t}x|jdD]ý}t|tjƒr`t}q<n|rÿy|j|||ƒ\}}Wqtk
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resultlistt	errorStopRTt
exprtokensR—((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ,	s((


+cCs+t|tƒrt|ƒ}n|j|ƒS(N(RjR´RRë(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRåE	scCs@||g}x+|jD] }|j|ƒ|jsPqqWdS(N(RR¦R,(R…R™tsubRecCheckListRT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¦J	s

	cCset|dƒr|jS|jdkr^ddjg|jD]}t|ƒ^q8ƒd|_n|jS(NR¨t{RËt}(R;R¨R&RRŽRRo(R…RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒQ	s
9(R|R}R•RRˆR¤R‡RZRåR¦RŒ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR	s		cBsAeZdZed„Zed„Zd„Zd„Zd„Z	RS(sÏRequires that at least one C{ParseExpression} is found.
       If two expressions match, the expression that matches the longest string will be used.
       May be constructed using the C{'^'} operator.
    cCsPtt|ƒj||ƒt|_x'|jD]}|jr,t|_Pq,q,WdS(N(R–RR‡R¬R,RR¤(R…RR8RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡`	s			cCs7d}d}d}xÖ|jD]Ë}y|j||ƒ}Wn‘tk
r|tjƒd}	|	j|krç|	}|	j}qçqtk
rËt|ƒ|krçt|t|ƒ|j	|ƒ}t|ƒ}qçqX||kr|}|}
qqW|dkr$|dk	r|‚q$t||d|ƒ‚n|
j
|||ƒS(Niÿÿÿÿiis no defined alternatives to match(RRRfRR]R^R€R¸RÀR2RI(R…RR€RDt	maxExcLoctmaxMatchLoctmaxExceptionRTtloc2RctmaxMatchExp((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZh	s.


	cCs+t|tƒrt|ƒ}n|j|ƒS(N(RjR´RRë(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__ixor__…	scCset|dƒr|jS|jdkr^ddjg|jD]}t|ƒ^q8ƒd|_n|jS(NR¨Rs ^ R(R;R¨R&RRŽRRo(R…RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒŠ	s
9cCs3||g}x|jD]}|j|ƒqWdS(N(RR¦(R…R™R
RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¦“	s(
R|R}R•R¬R‡R¤RZRRŒR¦(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR[	s			cBsAeZdZed„Zed„Zd„Zd„Zd„Z	RS(sÃRequires that at least one C{ParseExpression} is found.
       If two expressions match, the first one listed is the one that will match.
       May be constructed using the C{'|'} operator.
    cCsbtt|ƒj||ƒ|rUt|_x3|jD]}|jr2t|_Pq2q2Wn	t|_dS(N(R–RR‡R¬R,RR¤(R…RR8RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡ž	s			c	Csñd}d}xÞ|jD]©}y|j|||ƒ}|SWqtk
ro}|j|kr¿|}|j}q¿qtk
r¾t|ƒ|kr¿t|t|ƒ|j|ƒ}t|ƒ}q¿qXqW|dk	rØ|‚nt||d|ƒ‚dS(Niÿÿÿÿs no defined alternatives to match(RRRIRR€R¸RÀR2(	R…RR€RDRRRTRÔRc((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ©	s"
	cCs+t|tƒrt|ƒ}n|j|ƒS(N(RjR´RRë(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyt__ior__À	scCset|dƒr|jS|jdkr^ddjg|jD]}t|ƒ^q8ƒd|_n|jS(NR¨Rs | R(R;R¨R&RRŽRRo(R…RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒÅ	s
9cCs3||g}x|jD]}|j|ƒqWdS(N(RR¦(R…R™R
RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¦Î	s(
R|R}R•R¬R‡R¤RZRRŒR¦(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR™	s			cBs8eZdZed„Zed„Zd„Zd„ZRS(s²Requires all given C{ParseExpression}s to be found, but in any order.
       Expressions may be separated by whitespace.
       May be constructed using the C{'&'} operator.
    cCsbtt|ƒj||ƒt|_x'|jD]}|js,t|_Pq,q,Wt|_t|_dS(N(	R–RR‡R¤R,RR¬R)tinitExprGroups(R…RR8RT((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡Ù	s				cCs|jr,g|jD]}t|tƒr|j^q}g|jD]!}|jrA||krA|^qA}|||_g|jD]}t|tƒr|j^q|_g|jD]}t|t	ƒr°|j^q°|_
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ƒt|ƒkrUt}qUqUW|rrdjg|D]}t|ƒ^q>ƒ}t||d|ƒ‚n|
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g}x6|
D].}|j|||ƒ\}}|j|ƒq½Wtgƒ}x¥|D]}i}xW|jƒD]I}||jƒkrt||ƒ}|t||ƒ7}|||<qqW|t|ƒ7}x$|jƒD]\}}|||<q…WqW||fS(Ns, s*Missing one or more required elements (%s)(RRRjRRR,t	optionalsR.tmultioptionalsRt
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117

	



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9cCs3||g}x|jD]}|j|ƒqWdS(N(RR¦(R…R™R
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:		cBs_eZdZed„Zed„Zd„Zd„Zd„Z	d„Z
gd„Zd„ZRS(	sWAbstract subclass of C{ParserElement}, for combining and post-processing parsed tokens.cCs¸tt|ƒj|ƒt|tƒr4t|ƒ}n||_d|_|dk	r´|j	|_	|j
|_
|j|jƒ|j
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|j|_|j|_|jj|jƒndS(N(R–RR‡RjR´RRRR&R1R,RR*R)R(R6R.textend(R…RR8((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡.
s		cCsG|jdk	r+|jj|||dtƒStd||j|ƒ‚dS(NRER(RRRIR¬RR2(R…RR€RD((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ=
scCs>t|_|jjƒ|_|jdk	r:|jjƒn|S(N(R¬R)RRµRRœ(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRœC
s
	cCs¦t|tƒrc||jkr¢tt|ƒj|ƒ|jdk	r`|jj|jdƒq`q¢n?tt|ƒj|ƒ|jdk	r¢|jj|jdƒn|S(Niÿÿÿÿ(RjR&R.R–RRŸRR(R…RÜ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŸJ
s cCs6tt|ƒjƒ|jdk	r2|jjƒn|S(N(R–RRoRR(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRoV
scCsV||kr"t||gƒ‚n||g}|jdk	rR|jj|ƒndS(N(R!RRR¦(R…R™R
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cCsA||g}|jdk	r0|jj|ƒn|jgƒdS(N(RRR¨R¦(R…R§R	((s-/usr/lib/python2.7/site-packages/pyparsing.pyR¨c
scCskytt|ƒjƒSWnnX|jdkrd|jdk	rdd|jjt|jƒf|_n|jS(Ns%s:(%s)(	R–RRŒR&RRRÀR|Ro(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒi
s%(
R|R}R•R¬R‡R¤RZRœRŸRoR¦R¨RŒ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR,
s				cBs#eZdZd„Zed„ZRS(sLookahead matching of the given parse expression.  C{FollowedBy}
    does *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.cCs#tt|ƒj|ƒt|_dS(N(R–R	R‡R¤R,(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡y
scCs|jj||ƒ|gfS(N(RRf(R…RR€RD((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ}
s(R|R}R•R‡R¤RZ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR	t
s	cBs,eZdZd„Zed„Zd„ZRS(sŒLookahead to disallow matching with the given parse expression.  C{NotAny}
    does *not* advance the parsing position within the input string, it only
    verifies that the specified parse expression does *not* match at the current
    position.  Also, C{NotAny} does *not* skip over leading whitespace. C{NotAny}
    always returns a null token list.  May be constructed using the '~' operator.cCsBtt|ƒj|ƒt|_t|_dt|jƒ|_	dS(NsFound unwanted token, (
R–RR‡R¬R)R¤R,RoRR2(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡ˆ
s		cCs\y|jj||ƒWnttfk
r0n"X|j}||_||_|‚|gfS(N(RRfRR¸R²R€Rƒ(R…RR€RDR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ
s			cCsIt|dƒr|jS|jdkrBdt|jƒd|_n|jS(NR¨s~{R(R;R¨R&RRoR(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒœ
s
(R|R}R•R‡R¤RZRŒ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‚
s	
cBs8eZdZd„Zed„Zd„Zed„ZRS(s<Optional repetition of zero or more of the given expression.cCs#tt|ƒj|ƒt|_dS(N(R–R.R‡R¤R,(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡¨
scCsËg}y¡|jj|||dtƒ\}}t|jƒdk}xa|r`|j||ƒ}n|}|jj|||ƒ\}}|s–|jƒrE||7}qEqEWnttfk
rÀnX||fS(NREi(	RRIR¬RÀR.RVRÒRR¸(R…RR€RDRbthasIgnoreExprsR`t	tmptokens((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZ¬
s$cCsIt|dƒr|jS|jdkrBdt|jƒd|_n|jS(NR¨Rçs]...(R;R¨R&RRoR(R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒ¾
s
cCs(tt|ƒj||ƒ}t|_|S(N(R–R.RAR¤R((R…R¨R?RÔ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRAÇ
s	(	R|R}R•R‡R¤RZRŒR¬RA(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR.¦
s
			cBs/eZdZed„Zd„Zed„ZRS(s2Repetition of one or more of the given expression.cCsÅ|jj|||dtƒ\}}y}t|jƒdk}xa|rZ|j||ƒ}n|}|jj|||ƒ\}}|s|jƒr?||7}q?q?Wnttfk
rºnX||fS(NREi(	RRIR¬RÀR.RVRÒRR¸(R…RR€RDRbR,R`R-((s-/usr/lib/python2.7/site-packages/pyparsing.pyRZÏ
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cCs(tt|ƒj||ƒ}t|_|S(N(R–RRAR¤R((R…R¨R?RÔ((s-/usr/lib/python2.7/site-packages/pyparsing.pyRAê
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cCsxt|dƒr|jS|j|_t|_z+|jdk	rOt|jƒ}nd}Wd|j|_X|jjd|S(NR¨Rs: (	R;R¨RÀt_revertClasst_ForwardNoRecurseRRRoR|(R…t	retString((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒ‹s	

cCs;|jdk	r"tt|ƒjƒStƒ}||>|SdS(N(RRR–R
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	N(R|R}R•RR‡R:RœRoR¨RŒRµ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR
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				R<cBseZd„ZRS(cCsdS(Ns...((R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyRŒ£s(R|R}RŒ(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR<¢scBseZdZed„ZRS(sGAbstract subclass of C{ParseExpression}, for converting parsed results.cCs#tt|ƒj|ƒt|_dS(N(R–R(R‡R¬R((R…RR8((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡¨s(R|R}R•R¬R‡(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR(¦scBs eZdZd„Zd„ZRS(s,Converter to upper case all matching tokens.cGs0tt|ƒj|ŒtjdtddƒdS(NsAUpcase class is deprecated, use upcaseTokens parse action insteadRƒi(R–R)R‡R„R…tDeprecationWarning(R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡®s	cCstttj|ƒƒS(N(R°RLtstringRÄ(R…RR€R[((s-/usr/lib/python2.7/site-packages/pyparsing.pyR\³s(R|R}R•R‡R\(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR)¬s	cBs/eZdZded„Zd„Zd„ZRS(síConverter to concatenate all matching tokens to a single string.
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	cBs eZdZd„Zd„ZRS(s}Converter to return the matched tokens as a list - useful for returning tokens of C{ZeroOrMore} and C{OneOrMore} expressions.cCs#tt|ƒj|ƒt|_dS(N(R–RR‡R¤R((R…R((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡ÙscCs|gS(N((R…RR€R[((s-/usr/lib/python2.7/site-packages/pyparsing.pyR\Ýs(R|R}R•R‡R\(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR×s	cBs eZdZd„Zd„ZRS(sConverter to return a repetitive expression as a list, but also as a dictionary.
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n|d}t|tƒrct|dƒjƒ}nt|ƒdkr‹td|ƒ||<q
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&-	(R|R}R•R‡R\(((s-/usr/lib/python2.7/site-packages/pyparsing.pyRàs	cBs eZdZd„Zd„ZRS(s:Converter for ignoring the results of a parsed expression.cCsgS(N((R…RR€R[((s-/usr/lib/python2.7/site-packages/pyparsing.pyR\scCs|S(N((R…((s-/usr/lib/python2.7/site-packages/pyparsing.pyR›s(R|R}R•R\R›(((s-/usr/lib/python2.7/site-packages/pyparsing.pyR&s	cBs)eZdZd„Zd„Zd„ZRS(s?Wrapper for parse actions, to ensure they are only called once.cCst|ƒ|_t|_dS(N(R tcallableR¬tcalled(R…t
methodCall((s-/usr/lib/python2.7/site-packages/pyparsing.pyR‡
scCsA|js+|j|||ƒ}t|_|St||dƒ‚dS(NR(RGRFR¤R(R…RgtlRR'((s-/usr/lib/python2.7/site-packages/pyparsing.pyRšs
		cCs
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r>nX|S(s&Decorator for debugging parse actions.csáˆj}|d\}}}t|ƒdkrI|djjd|}ntjjd|t||ƒ||fƒyˆ|Œ}Wn>tk
rÂtj	ƒd}tjjd||fƒ‚nXtjjd||fƒ|S(	Niýÿÿÿiit.s">>entering %s(line: '%s', %d, %s)
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t	func_nameRÀRÀR|R]tstderrtwriteRERhR^(tpaArgstthisFuncRgRIRRÔR(R¯(s-/usr/lib/python2.7/site-packages/pyparsing.pytzs	)
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t,cCsxt|ƒdt|ƒdt|ƒd}|rSt|t||ƒƒj|ƒS|tt|ƒ|ƒj|ƒSdS(s÷Helper to define a delimited list of expressions - the delimiter defaults to ','.
       By default, the list elements and delimiters can have intervening whitespace, and
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    s [RËs]...N(RoRR.R<R&(RtdelimtcombinetdlName((s-/usr/lib/python2.7/site-packages/pyparsing.pyR<3s,!csvtƒ‰‡‡fd†}|dkrBttƒjd„ƒ}n|jƒ}|jdƒ|j|dtƒ|ˆS(sCHelper to define a counted list of expressions.
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    cs;|d}ˆ|r,ttˆg|ƒƒp5ttƒ>gS(Ni(RRR?(RgRIRR‹(t	arrayExprR(s-/usr/lib/python2.7/site-packages/pyparsing.pytcountFieldParseActionIs
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RR+RPRORµR<RPR¤(RtintExprRW((RVRs-/usr/lib/python2.7/site-packages/pyparsing.pyR8As	
cCsMg}x@|D]8}t|tƒr8|jt|ƒƒq
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W|S(N(RjR°R+R}Rë(tLRÔRž((s-/usr/lib/python2.7/site-packages/pyparsing.pyR}Us
cs/tƒ‰‡fd†}|j|dtƒˆS(s?Helper to define an expression that is indirectly defined from
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           first = Word(nums)
           second = matchPreviousLiteral(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
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       If this is not desired, use C{matchPreviousExpr}.
       Do *not* use with packrat parsing enabled.
    csr|rct|ƒdkr'ˆ|d>qnt|jƒƒ}ˆtg|D]}t|ƒ^qFƒ>nˆtƒ>dS(Nii(RÀR}R©RRR(RgRIRttflatttt(trep(s-/usr/lib/python2.7/site-packages/pyparsing.pytcopyTokenToRepeaterks*R7(R
RPR¤(RR^((R]s-/usr/lib/python2.7/site-packages/pyparsing.pyRM^s	
csCtƒ‰|jƒ}ˆ|>‡fd†}|j|dtƒˆS(sjHelper 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 *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 *not* use with packrat parsing enabled.
    cs8t|jƒƒ‰‡fd†}ˆj|dtƒdS(Ncs7t|jƒƒ}|ˆkr3tdddƒ‚ndS(NRi(R}R©R(RgRIRttheseTokens(tmatchTokens(s-/usr/lib/python2.7/site-packages/pyparsing.pytmustMatchTheseTokensŠsR7(R}R©ROR¤(RgRIRRa(R](R`s-/usr/lib/python2.7/site-packages/pyparsing.pyR^ˆsR7(R
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	cCsUx$dD]}|j|t|ƒ}qW|jddƒ}|jddƒ}t|ƒS(Ns\^-]s
s\ns	s\t(Rtt_bslashRo(RgRh((s-/usr/lib/python2.7/site-packages/pyparsing.pyRÔ’s

cCs|r!d„}d„}t}nd„}d„}t}t|ttfƒr^t|ƒ}n4t|tƒr||jƒ}ntjdt	ddƒd}x|t
|ƒd	krG||}x†t||d	ƒD]f\}	}
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g|D]}tj|ƒ^q¹ƒƒSWqütjd
t	ddƒqüXntg|D]}||ƒ^qƒS(soHelper to quickly define a set of alternative Literals, and makes sure to do
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        - strs - a string of space-delimited literals, or a list of string literals
        - caseless - (default=False) - treat all literals as caseless
        - useRegex - (default=True) - as an optimization, will generate a Regex
          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
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    cSs|jƒ|jƒkS(N(RÄ(RÞtb((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi§scSs|jƒj|jƒƒS(N(RÄRÂ(RÞRd((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi¨scSs
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|j|ƒS(N(RÂ(RÞRd((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi¬ss2Invalid argument to oneOf, expected string or listRƒiiiRs[%s]t|s7Exception creating Regex for oneOf, building MatchFirst(RRRjR°RR´RrR„R…R‡RÀRÄRØRŽR"RÔR5RÖR(tstrsRÃtuseRegextisequaltmaskstparseElementClasstsymbolsRžtcurRÈRÜtsym((s-/usr/lib/python2.7/site-packages/pyparsing.pyRQšsF						

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!03	cCsttt||ƒƒƒS(sæHelper to easily and clearly define a dictionary by specifying the respective patterns
       for the key and value.  Takes care of defining the C{Dict}, C{ZeroOrMore}, and C{Group} tokens
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       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.
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       input text. Simpler to use than the parse action C{L{keepOriginalText}}, and does not
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       C{ParseResults} containing any results names that were originally matched, and a 
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cCst|ƒjd„ƒS(siHelper to undo pyparsing's default grouping of And expressions, even
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ss\]s\\0?[xX][0-9a-fA-F]+cCstt|dddƒƒS(Niii(tunichrR³(RgRIR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi

ss	\\0[0-7]+cCstt|dddƒƒS(Niii(RvR³(RgRIR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi
siRíRçRìtnegatetbodyRècCs\t|tƒrXdjgtt|dƒt|dƒdƒD]}t|ƒ^q=ƒp[|S(NRii(RjRRŽRÁtordRv(tpRh((s-/usr/lib/python2.7/site-packages/pyparsing.pyRi
scCsEy6djgtj|ƒjD]}t|ƒ^qƒSWndSXdS(sÛHelper to easily define string ranges for use in Word construction.  Borrows
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          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
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s6cs‡fd†}|S(srHelper method for defining parse actions that require matching at a specific
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    cs2t||ƒˆkr.t||dˆƒ‚ndS(Nsmatched token not at column %d(R5R(R
tlocnR(R‹(s-/usr/lib/python2.7/site-packages/pyparsing.pyt	verifyCol,
s((R‹R((R‹s-/usr/lib/python2.7/site-packages/pyparsing.pyRK(
scs‡fd†}|S(sŽHelper method for common parse actions that simply return a literal value.  Especially
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ƒ}|jddj|jddƒjƒjƒƒƒjd|ƒ}|jddj|jddƒjƒjƒƒƒjd|ƒ}||_||_||fS(sRInternal helper to construct opening and closing tag expressions, given a tag nameRÃs_-:Rñttagt=t/R/R?cSs|ddkS(NiR‰((RgRIR((s-/usr/lib/python2.7/site-packages/pyparsing.pyRiq
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           - rightLeftAssoc is the indicator whether the operator is
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        - content - expression for items within the nested lists (default=None)
        - ignoreExpr - expression for ignoring opening and closing delimiters (default=quotedString)

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n0tt|ƒt|t|ƒt|ƒƒƒ}
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S(sìHelper method for defining space-delimited indentation blocks, such as
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            (multiple statementWithIndentedBlock expressions within a single grammar
            should share a common indentStack)
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