o ^+ @s dZdZdZdZddlZddlmZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlZddlZddlmZddlmZddlZdd lmZdd lmZzdd lmZWneyidd lmZYnwzdd lmZWneydd lmZYnwzddlm Z ddlm!Z!m"Z"Wneyddl m Z ddl m!Z!m"Z"Ynwzddl m#Z$Wneyzddl%m#Z$Wn eydZ$YnwYnwzddlm&Z&WneyGdddZ&Ynwe&Z'de'_de'_(e&Z)de)_de)_*de)_+de)_,de)_-de)_.dde/e)De)_0ddZ1e1e)_2gdZ3e4e j5ddZ6e6ddkZ7e7rGe j8Z9e:Z;ee:Z?e@eAeBeCeDe4eEeFeGeHeIg ZJn,e jKZ9eLZMddZ?gZJddlNZNd OD]ZPz eJQeReNePWqZeSyrYqZweTd!d"eMd#DZUd$d%ZVejWejXZYd&ZZeZd'Z[eYeZZ\eZmd?d@ZndAdBZodCdDZpdEdFZqdGdHZr dDdJdKZsGdLdMdMehZtGdNdOdOetZuGdPdQdQetZvGdRdSdSevZwGdTdUdUevZxGdVdWdWevZyGdXdYdYeyZzeyZ{eyet_|GdZd[d[evZ}Gd\d]d]eyZ~Gd^d_d_e}ZGd`dadaevZGdbdcdcevZGdddedeeZGdfdgdgeZGdhdidievZGdjdkdkevZGdldmdmevZGdndodoevZGdpdqdqevZGdrdsdseZGdtdudueZGdvdwdweZGdxdydyeZGdzd{d{eZGd|d}d}eZGd~ddeZGdddetZGdddeZGdddeZGdddeZGdddeZGdddetZGdddeZGdddeZGdddeZGdddeZGdddeZGdddeZGdddehZGdddeZGdddeZGdddeZGdddeZGdddeZGdddeZGdddeZGdddeZGdddehZddZdEddZdFddZddZddZddZddZdGddZddZdHddZdd„ZddĄZewdšZedơZedǡZedȡZedɡZee]ddIdˍdd̈́Zed΃dd̈́ZedЃdd̈́ZeeBeBedd#dˍBZeeedӃeZeydԃedՃd֡eeeeBdסdZddڄZdd܄ZddބZddZddZedd̈́Z edd̈́Z ededfddZddZddZddZehe_ːdIddZe&Zehe_ehe_ededfddZeZ eedddZeedddZeeddeddBdZee{deԠdZdddeԠfddZ֐dHddZedZedZeeeYe\dd\ZZeeݐdOdZedd ^eޠߡd d Zd d ZeedddZ eddZ eddZeddZ eeddeBdZ eZ eddZ eeee`ddeedeydedZeeeԠeBd)ddZ Gdd d ZGd!d"d"ehZGd#d$d$ehZGd%d&d&eZejjjejjjejjjej_e7r4eed'ejeed(ejeed)ejeed*ejeed+ejeed,ejeejd-ejjeejd.ejjeejd/ejjeed0ejeed1ejeed2ejGd3d4d4Zed5kre~d6Ze~d7ZeeYe\d8Zeed9dd:ešZeeed;Zd<eBZeed9dd:ešZeeed=Zed>ed;eed=Z e  d?ej  d@ej  d@ej  dAddlZejeĐejej dBdSdS(Ja 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 ``", !"``), built up using :class:`Word`, :class:`Literal`, and :class:`And` elements (the :class:`'+'` operators create :class:`And` expressions, and the strings are auto-converted to :class:`Literal` expressions):: from pyparsing import Word, alphas # define grammar of a greeting greet = Word(alphas) + "," + Word(alphas) + "!" hello = "Hello, World!" print (hello, "->", greet.parseString(hello)) The program outputs the following:: Hello, World! -> ['Hello', ',', 'World', '!'] The Python representation of the grammar is quite readable, owing to the self-explanatory class names, and the use of '+', '|' and '^' operators. The :class:`ParseResults` object returned from :class:`ParserElement.parseString` can be accessed as a nested list, a dictionary, or an object with named attributes. The pyparsing module handles some of the problems that are typically vexing when writing text parsers: - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello , World !", etc.) - quoted strings - embedded comments Getting Started - ----------------- Visit the classes :class:`ParserElement` and :class:`ParseResults` to see the base classes that most other pyparsing classes inherit from. Use the docstrings for examples of how to: - construct literal match expressions from :class:`Literal` and :class:`CaselessLiteral` classes - construct character word-group expressions using the :class:`Word` class - see how to create repetitive expressions using :class:`ZeroOrMore` and :class:`OneOrMore` classes - use :class:`'+'`, :class:`'|'`, :class:`'^'`, and :class:`'&'` operators to combine simple expressions into more complex ones - associate names with your parsed results using :class:`ParserElement.setResultsName` - access the parsed data, which is returned as a :class:`ParseResults` object - find some helpful expression short-cuts like :class:`delimitedList` and :class:`oneOf` - find more useful common expressions in the :class:`pyparsing_common` namespace class z2.4.7z30 Mar 2020 00:43 UTCz*Paul McGuire N)ref)datetime) itemgetter)wraps)contextmanager) filterfalse) ifilterfalse)RLock)Iterable)MutableMappingMapping) OrderedDict)SimpleNamespacec@s eZdZdS)rN)__name__ __module__ __qualname__rr+/usr/lib/python3/dist-packages/pyparsing.pyr raA A cross-version compatibility configuration for pyparsing features that will be released in a future version. By setting values in this configuration to True, those features can be enabled in prior versions for compatibility development and testing. - collect_all_And_tokens - flag to enable fix for Issue #63 that fixes erroneous grouping of results names when an And expression is nested within an Or or MatchFirst; set to True to enable bugfix released in pyparsing 2.3.0, or False to preserve pre-2.3.0 handling of named results Ta Diagnostic configuration (all default to False) - warn_multiple_tokens_in_named_alternation - flag to enable warnings when a results name is defined on a MatchFirst or Or expression with one or more And subexpressions (only warns if __compat__.collect_all_And_tokens is False) - warn_ungrouped_named_tokens_in_collection - flag to enable warnings when a results name is defined on a containing expression with ungrouped subexpressions that also have results names - warn_name_set_on_empty_Forward - flag to enable warnings whan a Forward is defined with a results name, but has no contents defined - warn_on_multiple_string_args_to_oneof - flag to enable warnings whan oneOf is incorrectly called with multiple str arguments - enable_debug_on_named_expressions - flag to auto-enable debug on all subsequent calls to ParserElement.setName() FcCs$g|]}|ds|dr|qS)enable_warn_ startswith).0nmrrr $rcCsdt_dt_dt_dt_dSNT)__diag__)warn_multiple_tokens_in_named_alternation)warn_ungrouped_named_tokens_in_collectionwarn_name_set_on_empty_Forward%warn_on_multiple_string_args_to_oneofrrrr_enable_all_warningss r#)t __version____versionTime__ __author__ __compat__rAndCaselessKeywordCaselessLiteral CharsNotInCombineDictEachEmpty FollowedByForward GoToColumnGroupKeywordLineEnd LineStartLiteral PrecededBy MatchFirstNoMatchNotAny OneOrMoreOnlyOnceOptionalOrParseBaseExceptionParseElementEnhanceParseExceptionParseExpressionParseFatalException ParseResultsParseSyntaxException ParserElement QuotedStringRecursiveGrammarExceptionRegexSkipTo StringEnd StringStartSuppressTokenTokenConverterWhiteWordWordEnd WordStart ZeroOrMoreChar alphanumsalphas alphas8bit anyCloseTag anyOpenTag cStyleCommentcolcommaSeparatedListcommonHTMLEntity countedArraycppStyleCommentdblQuotedStringdblSlashComment delimitedListdictOfdowncaseTokensemptyhexnums htmlCommentjavaStyleCommentlinelineEnd lineStartlineno makeHTMLTags makeXMLTagsmatchOnlyAtColmatchPreviousExprmatchPreviousLiteral nestedExprnullDebugActionnumsoneOfopAssocoperatorPrecedence printablespunc8bitpythonStyleComment quotedString removeQuotesreplaceHTMLEntity replaceWith restOfLinesglQuotedStringsrange stringEnd stringStarttraceParseAction unicodeString upcaseTokens withAttribute indentedBlockoriginalTextForungroup infixNotation locatedExpr withClass CloseMatchtokenMappyparsing_commonpyparsing_unicode unicode_setconditionAsParseActionrecCs`t|tr|Szt|WSty/t|td}td}|dd| |YSw)aDrop-in replacement for str(obj) that tries to be Unicode friendly. It first tries str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It then < returns the unicode object | encodes it with the default encoding | ... >. xmlcharrefreplacez&#\d+;cSs$dtt|dddddS)Nz\ur)hexinttrrrrz_ustr..) isinstanceunicodestrUnicodeEncodeErrorencodesysgetdefaultencodingrJsetParseActiontransformString)objret xmlcharrefrrr_ustrs   rz6sum len sorted reversed list tuple set any all min maxccs|]}|VqdSNr)ryrrr srcCs:d}dddD}t||D] \}}|||}q|S)z/Escape &, <, >, ", ', etc. in a string of data.z&><"'css|] }d|dVqdS)&;Nr)rsrrrrz_xml_escape..zamp gt lt quot apos)splitzipreplace)data from_symbols to_symbolsfrom_to_rrr _xml_escapes r 0123456789 ABCDEFabcdef\ccs|] }|tjvr|VqdSr)string whitespacercrrrrcs@|dur|nd|r tntttfdd}|S)Nzfailed user-defined conditioncs t|||s||dSr)boolrlrexc_typefnmsgrrpa%s z"conditionAsParseAction..pa)rDrB _trim_arityr)rmessagefatalrrrrr s  rc@sPeZdZdZdddZeddZdd Zd d Zd d Z dddZ ddZ dS)r@z7base exception class for all parsing runtime exceptionsrNcCs>||_|dur||_d|_n||_||_||_|||f|_dSNr)locrpstr parserElementargs)selfrrrelemrrr__init__0szParseBaseException.__init__cCs||j|j|j|jS)z internal factory method to simplify creating one type of ParseException from another - avoids having __init__ signature conflicts among subclasses )rrrr)clsperrr_from_exception;sz"ParseBaseException._from_exceptioncCsJ|dkr t|j|jS|dvrt|j|jS|dkr!t|j|jSt|)zsupported 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 rn)r]columnrk)rnrrr]rkAttributeError)ranamerrr __getattr__CszParseBaseException.__getattr__cCs^|jr |jt|jkrd}nd|j|j|jddd}nd}d|j||j|j|jfS)Nz, found end of textz , found %rrz\\\rz%%s%s (at char %d), (line:%d, col:%d))rrlenrrrnr)rfoundstrrrr__str__Rs$zParseBaseException.__str__cCt|Srrrrrr__repr__\zParseBaseException.__repr__>!z{0} )inspectrgetrecursionlimitrr@appendrkr]formatrrgetinnerframes __traceback__set enumeratef_localsgetrGf_codeco_nameaddrr) excdepthrrcallersseenifffrmf_self self_typecoderrrexplainsN         zParseException.explainN)r)rrrr staticmethodrrrrrrBksrBc@eZdZdZdS)rDznuser-throwable exception thrown when inconsistent parse content is found; stops all parsing immediatelyNrrrrrrrrrDsrDc@r)rFzjust like :class:`ParseFatalException`, but thrown internally when an :class:`ErrorStop` ('-' operator) indicates that parsing is to stop immediately because an unbacktrackable syntax error has been found. NrrrrrrFsrFc@ eZdZdZddZddZdS)rIziexception thrown by :class:`ParserElement.validate` if the grammar could be improperly recursive cCs ||_dSrparseElementTracerparseElementListrrrr z"RecursiveGrammarException.__init__cCs d|jS)NzRecursiveGrammarException: %srrrrrrrz!RecursiveGrammarException.__str__N)rrrrrrrrrrrIs rIc@s,eZdZddZddZddZddZd S) _ParseResultsWithOffsetcCs||f|_dSrtup)rp1p2rrrrz _ParseResultsWithOffset.__init__cCs |j|Srr!rrrrr __getitem__rz#_ParseResultsWithOffset.__getitem__cCst|jdSNr)reprr"rrrrrr%z _ParseResultsWithOffset.__repr__cCs|jd|f|_dSr(r!r&rrr setOffsetrz!_ParseResultsWithOffset.setOffsetN)rrrrr'rr*rrrrr s  r c@seZdZdZd]ddZddddefddZdd Zefd d Zd d Z ddZ ddZ ddZ e Z ddZddZddZddZddZerPeZ eZ eZneZ eZ eZ ddZd d!Zd"d#Zd$d%Zd&d'Zd^d(d)Zd*d+Zd,d-Zd.d/Zd0d1Z d2d3Z!d4d5Z"d6d7Z#d8d9Z$d:d;Z%d`` - see :class:`ParserElement.setResultsName`) Example:: integer = Word(nums) date_str = (integer.setResultsName("year") + '/' + integer.setResultsName("month") + '/' + integer.setResultsName("day")) # equivalent form: # date_str = integer("year") + '/' + integer("month") + '/' + integer("day") # parseString returns a ParseResults object result = date_str.parseString("1999/12/31") def test(s, fn=repr): print("%s -> %s" % (s, fn(eval(s)))) test("list(result)") test("result[0]") test("result['month']") test("result.day") test("'month' in result") test("'minutes' in result") test("result.dump()", str) prints:: list(result) -> ['1999', '/', '12', '/', '31'] result[0] -> '1999' result['month'] -> '12' result.day -> '31' 'month' in result -> True 'minutes' in result -> False result.dump() -> ['1999', '/', '12', '/', '31'] - day: 31 - month: 12 - year: 1999 NTcCs"t||r|St|}d|_|Sr)robject__new___ParseResults__doinit)rtoklistnameasListmodalretobjrrrr,!s  zParseResults.__new__c Csd|jr;d|_d|_d|_i|_||_||_|durg}||tr(|dd|_n||tr3t||_n|g|_t |_ |dur|r|sHd|j|<||t rQt |}||_||t dttfre|ddgfvs||trm|g}|r||trtt|jd||<n tt|dd||<|||_dSz |d||<WdStttfy|||<YdSwdSdSdS)NFrr)r-_ParseResults__name_ParseResults__parent_ParseResults__accumNames_ParseResults__asList_ParseResults__modallist_ParseResults__toklist_generatorTypedict_ParseResults__tokdictrrr basestringrEr KeyError TypeError IndexError)rr.r/r0r1rrrrr*sH      "  zParseResults.__init__cCsLt|ttfr |j|S||jvr|j|ddStdd|j|DS)NrrcSsg|]}|dqSrrrvrrrrXz,ParseResults.__getitem__..)rrslicer9r5r<rEr&rrrr'Qs   zParseResults.__getitem__cCs||tr|j|t|g|j|<|d}n"||ttfr'||j|<|}n|j|tt|dg|j|<|}||trFt||_ dSdSr() r r<rr8rrEr9rEwkrefr4)rkrCrsubrrr __setitem__Zs   " zParseResults.__setitem__c Cst|ttfrXt|j}|j|=t|tr$|dkr||7}t||d}tt||}||j D]\}}|D]}t |D]\}\}} t || | |k||<qBq.rbrrrr _itervalueszParseResults._itervaluescrc)Nc3s|] }||fVqdSrrrdrrrrrz*ParseResults._iteritems..rfrrrr _iteritemsrhzParseResults._iteritemscC t|S)zVReturns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x).)r8r`rrrrkeys zParseResults.keyscCrj)zXReturns all named result values (as a list in Python 2.x, as an iterator in Python 3.x).)r8 itervaluesrrrrvaluesrlzParseResults.valuescCrj)zfReturns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x).)r8 iteritemsrrrrrNrlzParseResults.itemscCrW)zSince keys() returns an iterator, this method is helpful in bypassing code that looks for the existence of any defined results names.)rr<rrrrhaskeyss zParseResults.haskeyscOs|sdg}|D]\}}|dkr|d|f}q td|t|dts1t|dks1|d|vr>|d}||}||=|S|d}|S)a Removes and returns item at specified index (default= ``last``). Supports both ``list`` and ``dict`` semantics for ``pop()``. If passed no argument or an integer argument, it will use ``list`` semantics and pop tokens from the list of parsed tokens. If passed a non-integer argument (most likely a string), it will use ``dict`` semantics and pop the corresponding value from any defined results names. A second default return value argument is supported, just as in ``dict.pop()``. Example:: def remove_first(tokens): tokens.pop(0) print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321'] print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321'] label = Word(alphas) patt = label("LABEL") + OneOrMore(Word(nums)) print(patt.parseString("AAB 123 321").dump()) # Use pop() in a parse action to remove named result (note that corresponding value is not # removed from list form of results) def remove_LABEL(tokens): tokens.pop("LABEL") return tokens patt.addParseAction(remove_LABEL) print(patt.parseString("AAB 123 321").dump()) prints:: ['AAB', '123', '321'] - LABEL: AAB ['AAB', '123', '321'] rdefaultrz-pop() got an unexpected keyword argument '%s'r)rNr?rrr)rrkwargsrGrCindexr defaultvaluerrrpops%   zParseResults.popcCs||vr||S|S)a[ Returns named result matching the given key, or if there is no such name, then returns the given ``defaultValue`` or ``None`` if no ``defaultValue`` is specified. Similar to ``dict.get()``. Example:: integer = Word(nums) date_str = integer("year") + '/' + integer("month") + '/' + integer("day") result = date_str.parseString("1999/12/31") print(result.get("year")) # -> '1999' print(result.get("hour", "not specified")) # -> 'not specified' print(result.get("hour")) # -> None r)rkey defaultValuerrrrszParseResults.getcCsR|j|||jD]\}}t|D]\}\}}t||||k||<qq dS)a Inserts new element at location index in the list of parsed tokens. Similar to ``list.insert()``. Example:: print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321'] # use a parse action to insert the parse location in the front of the parsed results def insert_locn(locn, tokens): tokens.insert(0, locn) print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321'] N)r9insertr<rNrr )rrsinsStrr/rQrGrSrTrrrrx s zParseResults.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)r9r)ritemrrrr  zParseResults.appendcCs(t|tr ||dS|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)rrE__iadd__r9extend)ritemseqrrrr}/s zParseResults.extendcCs|jdd=|jdS)z7 Clear all elements and results names. N)r9r<clearrrrrrBs zParseResults.clearcCs z||WStyYdSwr)r>rr/rrrrIs   zParseResults.__getattr__cCs|}||7}|Srcopy)rotherrrrr__add__OszParseResults.__add__cs|jr5t|jfdd|j}fdd|D}|D]\}}|||<t|dtr4t||d_q|j|j7_|j |j|S)Ncs|dkrS|Sr(r)a)offsetrrrWrDz'ParseResults.__iadd__..c s4g|]\}}|D]}|t|d|dfqqSrr)r rrGvlistrC) addoffsetrrrYs  z)ParseResults.__iadd__..r) r<rr9rNrrErFr4r5update)rr otheritemsotherdictitemsrGrCr)rrrr|Ts     zParseResults.__iadd__cCs"t|tr |dkr |S||Sr()rrrrrrrr__radd__dszParseResults.__radd__cCsdt|jt|jfS)Nz(%s, %s))r)r9r<rrrrrlzParseResults.__repr__cCsdddd|jDdS)N[, css*|]}t|tr t|nt|VqdSr)rrErr)rrrrrrps(z'ParseResults.__str__..])rr9rrrrroszParseResults.__str__rcCsLg}|jD]}|r|r||t|tr||7}q|t|q|Sr)r9rrrE _asStringListr)rsepoutrzrrrrrs   zParseResults._asStringListcCsdd|jDS)ax Returns the parse results as a nested list of matching tokens, all converted to strings. Example:: patt = OneOrMore(Word(alphas)) result = patt.parseString("sldkj lsdkj sldkj") # even though the result prints in string-like form, it is actually a pyparsing ParseResults print(type(result), result) # -> ['sldkj', 'lsdkj', 'sldkj'] # Use asList() to create an actual list result_list = result.asList() print(type(result_list), result_list) # -> ['sldkj', 'lsdkj', 'sldkj'] cSs"g|] }t|tr |n|qSr)rrEr0)rresrrrrs"z'ParseResults.asList..rYrrrrr0}szParseResults.asListcs6tr|j}n|j}fddtfdd|DS)a Returns the named parse results as a nested dictionary. Example:: integer = Word(nums) date_str = integer("year") + '/' + integer("month") + '/' + integer("day") result = date_str.parseString('12/31/1999') print(type(result), repr(result)) # -> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]}) result_dict = result.asDict() print(type(result_dict), repr(result_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"} cs0t|tr|r |Sfdd|DS|S)Ncsg|]}|qSrrrBtoItemrrrrDz7ParseResults.asDict..toItem..)rrErpasDictrrrrrs z#ParseResults.asDict..toItemc3s |] \}}||fVqdSrrrrGrCrrrrz&ParseResults.asDict..)PY_3rNror;)ritem_fnrrrrs   zParseResults.asDictcCs<t|j}t|j|_|j|_|j|j|j|_|S)zG Returns a new copy of a :class:`ParseResults` object. ) rEr9r;r<rNr4r5rr3rrrrrrs zParseResults.copyFc CsFd}g}tdd|jD}|d}|sd}d}d}d} |dur%|} n|jr+|j} | s3|r1dSd} |||d| d g7}t|jD]S\} } t| trp| |vr`|| || |oY|du||g7}qA|| d|oi|du||g7}qAd} | |vrz|| } | s|rqAd} t t | } |||d| d | d | d g 7}qA|||d | d g7}d |S) z (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names. rcss*|]\}}|D] }|d|fVqqdSrNrrrrrrs  z%ParseResults.asXML.. rNITEM<>.z %s%s- %s: rr)rfull include_list_depthcs|]}t|tVqdSr)rrE)rvvrrrrSz %s%s[%d]: %s%s%s) rrr0rpsortedrNrrEdumpr)anyrr) rrrrrrNLrNrGrCrrrrrr)sR           zParseResults.dumpcOs tj|g|Ri|dS)a# Pretty-printer for parsed results as a list, using the `pprint `_ module. Accepts additional positional or keyword args as defined for `pprint.pprint `_ . Example:: ident = Word(alphas, alphanums) num = Word(nums) func = Forward() term = ident | num | Group('(' + func + ')') func <<= ident + Group(Optional(delimitedList(term))) result = func.parseString("fna a,b,(fnb c,d,200),100") result.pprint(width=40) prints:: ['fna', ['a', 'b', ['(', 'fnb', ['c', 'd', '200'], ')'], '100']] N)pprintr0rrrrrrrrjs zParseResults.pprintcCs.|j|j|jdur|pd|j|jffSr)r9r<rr4r5r3rrrr __getstate__szParseResults.__getstate__cCsP|d|_|d\|_}}|_i|_|j||dur#t||_dSd|_dSrJ)r9r<r3r5rrFr4)rstater inAccumNamesrrr __setstate__s   zParseResults.__setstate__cCs|j|j|j|jfSr)r9r3r6r7rrrr__getnewargs__rzParseResults.__getnewargs__cCstt|t|Sr)rrr8rkrrrrrrzParseResults.__dir__cCsrdd}|g}|D]\}}t|tr||j||d7}q |||g|||d7}q |dur7||g|d}|S)z Helper classmethod to construct a ParseResults from a dict, preserving the name-value relations as results names. If an optional 'name' argument is given, a nested ParseResults will be returned cSsBzt|Wn tyYdSwtrt|ttf St|t SNF)r\ Exceptionrrrbytesr=rrrr is_iterables   z+ParseResults.from_dict..is_iterabler/)r/r0N)rNrr from_dict)rrr/rrrGrCrrrrs  zParseResults.from_dict)NNTTrr)NFrT)rTTr)6rrrrr,rrr'rIrUrVrXrZ __nonzero__r]r_rbrgrirrkrnrNr`rmrorprurrxrr}rrrr|rrrrr0rrrrrrrrrrrrrrrrrrEsx * '   7  $ = (A rEcCsF|}d|krt|krnn ||ddkrdS||dd|S)aReturns current column within a string, counting newlines as line separators. The first column is number 1. Note: the default parsing behavior is to expand tabs in the input string before starting the parsing process. See :class:`ParserElement.parseString` for more information on parsing strings containing ```` 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. rrr)rrfind)rstrgrrrrr]s Br]cCs|dd|dS)aReturns current line number within a string, counting newlines as line separators. The first line is number 1. Note - the default parsing behavior is to expand tabs in the input string before starting the parsing process. See :class:`ParserElement.parseString` for more information on parsing strings containing ```` 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. rrr)count)rrrrrrns rncCsB|dd|}|d|}|dkr||d|S||ddS)zfReturns the line of text containing loc within a string, counting newlines as line separators. rrrN)rfind)rrlastCRnextCRrrrrks  rkcCs8tdt|dt|dt||t||fdS)NzMatch z at loc z(%d,%d))printrrnr])instringrexprrrr_defaultStartDebugActions8rcCs$tdt|dt|dS)NzMatched z -> )rrrr0)rstartlocendlocrtoksrrr_defaultSuccessDebugActions$rcCstdt|dS)NzException raised:)rr)rrrr rrr_defaultExceptionDebugActionrrcGdS)zG'Do-nothing' debug action, to suppress debugging output during parsing.Nr)rrrrrusrurcstvr fddSdgdgtdddkr#ddd}dd d ntj}tjd }|dd d }|d|d|ffdd}d}z tdtdj}Wn tybt}Ynw||_|S)Ncs|Srrr)funcrrrz_trim_arity..rFr)rcSs8tdkrdnd}tj| |dd|}|ddgS)N)rrrrlimitr)system_version traceback extract_stack)rr frame_summaryrrrr sz"_trim_arity..extract_stackcSs$tj||d}|d}|ddgS)Nrrr)r extract_tb)tbrframesrrrrrsz_trim_arity..extract_tbrrrcs z|dd}dd<|WSty`drz#td}|dddddks4Wz~WntyAYnwz~WwtyNYwwdkr_dd7<Yqw)NrrTrrr)r?rexc_info NameError)rrrr foundArityrrmaxargspa_call_line_synthrrr!s8     z_trim_arity..wrapperzr __class__rA) singleArgBuiltinsrrrrgetattrrrr)rrr LINE_DIFF this_liner func_namerrrrs.      rc@seZdZdZdZdZeddZeddZe dd Z dd d Z d d Z ddZ dddZdddZdddZddZddZddZddZdd Zd!d"Zdd#d$Zd%d&Zdd'd(Zd)d*Zd+d,ZGd-d.d.eZed/ur{Gd0d1d1eZnGd2d1d1eZiZ e!Z"d3d3gZ#dd4d5Z$eZ%ed6d7Z&dZ'edd9d:Z(dd;d<Z)e*dfd=d>Z+d?d@Z,e*fdAdBZ-e*dfdCdDZ.dEdFZ/dGdHZ0dIdJZ1dKdLZ2dMdNZ3dOdPZ4dQdRZ5dSdTZ6dUdVZ7dWdXZ8dYdZZ9d[d\Z:d]d^Z;d_d`ZdedfZ?dgdhZ@didjZAdkdlZBdmdnZCdodpZDddqdrZEdsdtZFdudvZGdwdxZHdydzZIdd{d|ZJdd}d~ZKddZLddZMddZNddZOddZPdddZQ / /dddZRd/S)rGz)Abstract base level parser element class.z FcC |t_dS)a Overrides the default whitespace chars Example:: # default whitespace chars are space, 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)rGDEFAULT_WHITE_CHARScharsrrrsetDefaultWhitespaceCharsLs z'ParserElement.setDefaultWhitespaceCharscCr)ah Set class to be used for inclusion of string literals into a parser. Example:: # default literal class used is Literal integer = Word(nums) date_str = integer("year") + '/' + integer("month") + '/' + integer("day") date_str.parseString("1999/12/31") # -> ['1999', '/', '12', '/', '31'] # change to Suppress ParserElement.inlineLiteralsUsing(Suppress) date_str = integer("year") + '/' + integer("month") + '/' + integer("day") date_str.parseString("1999/12/31") # -> ['1999', '12', '31'] N)rG_literalStringClassrrrrinlineLiteralsUsing\s z!ParserElement.inlineLiteralsUsingcCs|jr |j}|js|Sr)tb_next)rrrrr_trim_tracebackrszParserElement._trim_tracebackcCst|_d|_d|_d|_||_d|_ttj |_ d|_ d|_ d|_ t|_d|_d|_d|_d|_d|_d|_d|_d|_d|_dS)NTFrNNN)r8 parseAction failActionstrRepr resultsName saveAsListskipWhitespacerrGr whiteCharscopyDefaultWhiteCharsmayReturnEmptykeepTabs ignoreExprsdebug streamlined mayIndexErrorerrmsg modalResults debugActionsr callPreparse callDuringTry)rsavelistrrrrxs(  zParserElement.__init__cCs<t|}|jdd|_|jdd|_|jrtj|_|S)a/ Make a copy of this :class:`ParserElement`. Useful for defining different parse actions for the same parsing pattern, using copies of the original parse element. Example:: integer = Word(nums).setParseAction(lambda toks: int(toks[0])) integerK = integer.copy().addParseAction(lambda toks: toks[0] * 1024) + Suppress("K") integerM = integer.copy().addParseAction(lambda toks: toks[0] * 1024 * 1024) + Suppress("M") print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M")) prints:: [5120, 100, 655360, 268435456] Equivalent form of ``expr.copy()`` is just ``expr()``:: integerM = integer().addParseAction(lambda toks: toks[0] * 1024 * 1024) + Suppress("M") N)rrrrrGrr )rcpyrrrrs zParserElement.copycCs$||_d|j|_tjr||S)a_ Define name for this expression, makes debugging and exception messages clearer. Example:: 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 )r/rr!enable_debug_on_named_expressionssetDebugrrrrsetNames  zParserElement.setNamecCs |||S)aO Define name for referencing matching tokens as a nested attribute of the returned parse results. NOTE: this returns a *copy* of the original :class:`ParserElement` object; this is so that the client can define a basic element, such as an integer, and reference it in multiple places with different names. You can also set results names using the abbreviated syntax, ``expr("name")`` in place of ``expr.setResultsName("name")`` - see :class:`__call__`. Example:: date_str = (integer.setResultsName("year") + '/' + integer.setResultsName("month") + '/' + integer.setResultsName("day")) # equivalent form: date_str = integer("year") + '/' + integer("month") + '/' + integer("day") )_setResultsNamerr/listAllMatchesrrrsetResultsNames zParserElement.setResultsNamecCs4|}|dr|dd}d}||_| |_|S)N*rT)rendswithr r)rr/r"newselfrrrr s  zParserElement._setResultsNameTcsB|r|jdfdd }|_||_|St|jdr|jj|_|S)zMethod to invoke the Python pdb debugger when this element is about to be parsed. Set ``breakFlag`` to True to enable, False to disable. Tcsddl}|||||Sr()pdb set_trace)rr doActions callPreParser' _parseMethodrrbreakersz'ParserElement.setBreak..breaker_originalParseMethodNTT)_parser.ra)r breakFlagr-rr+rsetBreaks zParserElement.setBreakcOsXt|dgkr g|_|Stdd|Dstdtttt||_|dd|_|S)a Define one or more actions to perform when successfully matching parse element definition. Parse action fn is a callable method with 0-3 arguments, called as ``fn(s, loc, toks)`` , ``fn(loc, toks)`` , ``fn(toks)`` , or just ``fn()`` , where: - s = the original string being parsed (see note below) - loc = the location of the matching substring - toks = a list of the matched tokens, packaged as a :class:`ParseResults` object If the functions in fns modify the tokens, they can return them as the return value from fn, and the modified list of tokens will replace the original. Otherwise, fn does not need to return any value. If None is passed as the parse action, all previously added parse actions for this expression are cleared. Optional keyword arguments: - callDuringTry = (default= ``False``) indicate if parse action should be run during lookaheads and alternate testing Note: the default parsing behavior is to expand tabs in the input string before starting the parsing process. See :class:`parseString for more information on parsing strings containing ```` 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] Ncs|]}t|VqdSr)callable)rrrrrrrez/ParserElement.setParseAction..zparse actions must be callablerF)r8rallr?maprrrrfnsrrrrrrs(zParserElement.setParseActioncOs4|jtttt|7_|jp|dd|_|S)z Add one or more parse actions to expression's list of parse actions. See :class:`setParseAction`. See examples in :class:`copy`. rF)rr8r6rrrr7rrraddParseActionszParserElement.addParseActionc OsF|D]}|jt||d|dddq|jp|dd|_|S)aAdd a boolean predicate function to expression's list of parse actions. See :class:`setParseAction` for function call signatures. Unlike ``setParseAction``, functions passed to ``addCondition`` need to return boolean success/fail of the condition. 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) rrF)rrr)rrrrr)rr8rrrrrr addCondition)s   zParserElement.addConditioncCs ||_|S)aDefine action to perform if parsing fails at this expression. Fail acton fn is a callable function that takes the arguments ``fn(s, loc, expr, err)`` where: - s = string being parsed - loc = location where expression match was attempted and failed - expr = the parse expression that failed - err = the exception thrown The function returns no value. It may throw :class:`ParseFatalException` if it is desired to stop parsing immediately.)rrrrrr setFailActionBs zParserElement.setFailActionc CsJd}|r#d}|jD]}z |||\}}d}q ty Yq w|s|SNTF)rr0rB)rrr exprsFoundedummyrrr_skipIgnorablesOs   zParserElement._skipIgnorablescCsZ|jr |||}|jr+|j}t|}||kr+|||vr+|d7}||kr+|||vs|SNr)rrAr r r)rrrwtinstrlenrrrpreParse\s zParserElement.preParsecCs|gfSrrrrrr)rrrrhrzParserElement.parseImplcCs|Srrrrr tokenlistrrr postParsekzParserElement.postParsec Cs@d\}}}|j}|s |jr|j|r|j||||zA|r(|jr(|||} n|} | } |js5| t|krRz ||| |\}} WntyQt |t||j |w||| |\}} Wnft y} z|j|rs|j||| || |jr~||| || d} ~ ww|r|jr|||} n|} | } |js| t|krz ||| |\}} Wntyt |t||j |w||| |\}} | ||| } t | |j|j|jd} |jr|s|jr|rEzD|jD]>}z||| | } Wnty}z t d}||_|d}~ww| dur$| | ur$t | |j|jot| t tf|jd} qWnat yD} z|j|r?|j||| || d} ~ ww|jD]?}z||| | } Wntyh}z t d}||_|d}~ww| dur| | urt | |j|jot| t tf|jd} qH|r|j|r|j||| ||| || fS)N)rrr)r0r1z exception raised in parse action)rrrrrErrrr@rBrrrIrEr r rrr __cause__rr8)rrrr)r*TRYMATCHFAIL debuggingpreloc tokensStarttokenserr retTokensrparse_action_excr rrrros            zParserElement._parseNoCachecCs6z |j||dddWStyt|||j|w)NFr)r)r0rDrBrrrrrrrtryParses  zParserElement.tryParsec Cs,z |||WdSttfyYdSw)NFT)rXrBr@rWrrr canParseNexts zParserElement.canParseNextc@eZdZddZdS)zParserElement._UnboundedCachecs~it|_fdd}fdd}fdd}fdd}t|||_t|||_t|||_t|||_dS) Nc |Srrrrvcache not_in_cacherrr z3ParserElement._UnboundedCache.__init__..getcs ||<dSrrrrvrSr_rrrraz3ParserElement._UnboundedCache.__init__..setc dSrrrrcrrrraz5ParserElement._UnboundedCache.__init__..clearctSrrrrcrr cache_lenrz9ParserElement._UnboundedCache.__init__..cache_len)r+r`types MethodTyperrrrX)rrrrrhrr^rrs    z&ParserElement._UnboundedCache.__init__Nrrrrrrrr_UnboundedCache rlNc@rZ)ParserElement._FifoCachecst|_tfdd}fdd}fdd}fdd}t|||_t|||_t|||_t|||_dS) Ncr[rr\r]r^rrrra.ParserElement._FifoCache.__init__..getcsJ||<tkr#zdWn tyYnwtks dSdSr)rpopitemr>rb)r_sizerrrs  .ParserElement._FifoCache.__init__..setcrdrrerrcrrrra0ParserElement._FifoCache.__init__..clearcrfrrgrrcrrrhr4ParserElement._FifoCache.__init__..cache_len) r+r` _OrderedDictrirjrrrrXrrqrrrrhr)r_r`rqrrs   !ParserElement._FifoCache.__init__Nrkrrrr _FifoCachermrxc@rZ)rncst|_itgfdd}fdd}fdd}fdd}t|||_t|||_t|||_t|||_ dS) Ncr[rr\r]r^rrrrarocs>||<tkrdtks |dSr)rrupopleftrrb)r_key_fiforqrrrs   rrcsdSrrer)r_rzrrrs rscrfrrgrrcrrrhrrt) r+r` collectionsdequerirjrrrrXrvr)r_rzr`rqrr s   rwNrkrrrrrxrmrc Csd\}}|||||f}tjqtj}||} | |jur^tj|d7<z |||||} WntyF} z ||| j | j d} ~ ww||| d| d f| WdStj|d7<t | t rn| | d| d fWdS1swYdS)Nrrr)rGpackrat_cache_lock packrat_cacherr`packrat_cache_statsrr@rrrrrr) rrrr)r*HITMISSlookupr_rSrrrr _parseCache+s,   $zParserElement._parseCachecCs(tjdgttjtjdd<dSr()rGr~rrrrrrr resetCacheDs zParserElement.resetCachecCs<tjsdt_|durtt_nt|t_tjt_dSdS)aEnables "packrat" parsing, which adds memoizing to the parsing logic. Repeated parse attempts at the same string location (which happens often in many complex grammars) can immediately return a cached value, instead of re-executing parsing/validating code. Memoizing is done of both valid results and parsing exceptions. Parameters: - cache_size_limit - (default= ``128``) - if an integer value is provided will limit the size of the packrat cache; if None is passed, then the cache size will be unbounded; if 0 is passed, the cache will be effectively disabled. This speedup may break existing programs that use parse actions that have side-effects. For this reason, packrat parsing is disabled when you first import pyparsing. To activate the packrat feature, your program must call the class method :class:`ParserElement.enablePackrat`. For best results, call ``enablePackrat()`` immediately after importing pyparsing. Example:: import pyparsing pyparsing.ParserElement.enablePackrat() TN)rG_packratEnabledrlr~rxrr0)cache_size_limitrrr enablePackratJs   zParserElement.enablePackratc Cst|js ||jD]}|q|js|}z"||d\}}|r<|||}t t }|||W|SW|St y_}ztj rJt |dddurY||j|_|d}~ww)a Execute the parse expression with the given string. This is the main interface to the client code, once the complete expression has been built. Returns the parsed data as a :class:`ParseResults` object, which may be accessed as a list, or as a dict or object with attributes if the given parser includes results names. If you want the grammar to require that the entire input string be successfully parsed, then set ``parseAll`` to True (equivalent to ending the grammar with ``StringEnd()``). Note: ``parseString`` implicitly calls ``expandtabs()`` on the input string, in order to report proper column numbers in parse actions. If the input string contains tabs and the grammar uses parse actions that use the ``loc`` argument to index into the string being parsed, you can ensure you have a consistent view of the input string by: - calling ``parseWithTabs`` on your grammar before calling ``parseString`` (see :class:`parseWithTabs`) - define your parse action using the full ``(s, loc, toks)`` signature, and reference the input string using the parse action's ``s`` argument - explictly expand the tabs in your input string before calling ``parseString`` Example:: Word('a').parseString('aaaaabaaa') # -> ['aaaaa'] Word('a').parseString('aaaaabaaa', parseAll=True) # -> Exception: Expected end of text rrN)rGrr streamlinerr expandtabsr0rEr/rLr@verbose_stacktracerrr)rrparseAllr?rrRser rrr parseStringms0!      zParserElement.parseStringc csb|js||jD]}|q |jst|}t|}d}|j}|j}t d} zb||kr| |krz|||} ||| dd\} } Wn t yS| d}Yn)w| |krx| d7} | | | fV|ru|||} | |krp| }n |d7}n| }n| d}||kr| |ks6WdSWdSWdSWdSt y}zt j rt|dddur||j|_|d}~ww)aq Scan the input string for expression matches. Each match will return the matching tokens, start location, and end location. May be called with optional ``maxMatches`` argument, to clip scanning after 'n' matches are found. If ``overlap`` is specified, then overlapping matches will be reported. Note that the start and end locations are reported relative to the string being parsed. See :class:`parseString` for more information on parsing strings with embedded tabs. Example:: source = "sldjf123lsdjjkf345sldkjf879lkjsfd987" print(source) for tokens, start, end in Word(alphas).scanString(source): print(' '*start + '^'*(end-start)) print(' '*start + tokens[0]) prints:: sldjf123lsdjjkf345sldkjf879lkjsfd987 ^^^^^ sldjf ^^^^^^^ lsdjjkf ^^^^^^ sldkjf ^^^^^^ lkjsfd rFr*rrN)rrrrrrrrEr0rGrrBr@rrrr)rr maxMatchesoverlapr?rDr preparseFnparseFnmatchesrPnextLocrRnextlocr rrr scanStringsP         (zParserElement.scanStringc Csg}d}d|_zN||D]-\}}}|||||r8t|tr)||7}nt|tr3||7}n|||}q |||ddd|D}dtt t |WSt yv}zt j rat|dddurp||j|_|d}~ww)a[ Extension to :class:`scanString`, to modify matching text with modified tokens that may be returned from a parse action. To use ``transformString``, define a grammar and attach a parse action to it that modifies the returned token list. Invoking ``transformString()`` on a target string will then scan for matches, and replace the matched text patterns according to the logic in the parse action. ``transformString()`` returns the resulting transformed string. Example:: wd = Word(alphas) wd.setParseAction(lambda toks: toks[0].title()) print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york.")) prints:: Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York. rTNcSsg|]}|r|qSrrrorrrrrDz1ParserElement.transformString..rr)rrrrrEr0r8rr6r_flattenr@rGrrrr)rrrlastErrr?r rrrrs0    zParserElement.transformStringc Cs`ztdd|||DWSty/}ztjrt|dddur)||j|_|d}~ww)a Another extension to :class:`scanString`, simplifying the access to the tokens found to match the given parse expression. May be called with optional ``maxMatches`` argument, to clip searching after 'n' matches are found. Example:: # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters cap_word = Word(alphas.upper(), alphas.lower()) print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity")) # the sum() builtin can be used to merge results into a single ParseResults object print(sum(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))) prints:: [['More'], ['Iron'], ['Lead'], ['Gold'], ['I'], ['Electricity']] ['More', 'Iron', 'Lead', 'Gold', 'I', 'Electricity'] cSsg|]\}}}|qSrr)rrrr?rrrr7z.ParserElement.searchString..rN)rErr@rGrrrr)rrrr rrr searchString!szParserElement.searchStringc csVd}d}|j||dD]\}}}|||V|r|dV|}q ||dVdS)aR Generator method to split a string using the given expression as a separator. May be called with optional ``maxsplit`` argument, to limit the number of splits; and the optional ``includeSeparators`` argument (default= ``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)rN)r) rrmaxsplitincludeSeparatorssplitslastrrr?rrrrAs zParserElement.splitcCsV|turt|St|tr||}t|ts%tjdt|t dddSt ||gS)a[ Implementation of + operator - returns :class:`And`. Adding strings to a ParserElement converts them to :class:`Literal`s by default. Example:: greet = Word(alphas) + "," + Word(alphas) + "!" hello = "Hello, World!" print (hello, "->", greet.parseString(hello)) prints:: Hello, World! -> ['Hello', ',', 'World', '!'] ``...`` may be used as a parse expression as a short form of :class:`SkipTo`. Literal('start') + ... + Literal('end') is equivalent to: Literal('start') + SkipTo('end')("_skipped*") + Literal('end') Note that the skipped text is returned with '_skipped' as a results name, and to support having multiple skips in the same parser, the value returned is a list of all skipped text. 4Cannot combine element of type %s with ParserElementr stacklevelN) Ellipsis _PendingSkiprr=rrGwarningswarnr SyntaxWarningr(rrrrrZs    zParserElement.__add__cCsZ|tur t|d|St|tr||}t|ts)tjdt|t dddS||S)z` Implementation of + operator when left operand is not a :class:`ParserElement` _skipped*rrrN) rrKrr=rrGrrrrrrrrrs   zParserElement.__radd__cCsJt|tr ||}t|tstjdt|tdddS|t |S)zT Implementation of - operator, returns :class:`And` with error stop rrrN) rr=rrGrrrrr( _ErrorStoprrrr__sub__s   zParserElement.__sub__cCsBt|tr ||}t|tstjdt|tdddS||S)z` Implementation of - operator when left operand is not a :class:`ParserElement` rrrNrr=rrGrrrrrrrr__rsub__   zParserElement.__rsub__cs|turd}nt|tr#|ddtfkr#d|ddddd}t|tr.|d}}nyt|trtdd |D}|d dd}|ddurPd|df}t|dtr{|ddur{|ddkrgtS|ddkrqtS|dtSt|dtrt|dtr|\}}||8}ntd t|dt|dtd t||dkrtd |dkrtd||krdkrtd|rfdd|r|dkr܈|}|St g||}|S|}|S|dkr}|St g|}|S)a Implementation of * operator, allows use of ``expr * 3`` in place of ``expr + expr + expr``. Expressions may also me multiplied by a 2-integer tuple, similar to ``{min, max}`` multipliers in regular expressions. Tuples may also include ``None`` as in: - ``expr*(n, None)`` or ``expr*(n, )`` is equivalent to ``expr*n + ZeroOrMore(expr)`` (read as "at least n instances of ``expr``") - ``expr*(None, n)`` is equivalent to ``expr*(0, n)`` (read as "0 to n instances of ``expr``") - ``expr*(None, None)`` is equivalent to ``ZeroOrMore(expr)`` - ``expr*(1, None)`` is equivalent to ``OneOrMore(expr)`` Note that ``expr*(None, n)`` does not raise an exception if more than n exprs exist in the input stream; that is, ``expr*(None, n)`` does not enforce a maximum number of expr occurrences. If this behavior is desired, then write ``expr*(None, n) + ~expr`` )rNNrrArrrcss |] }|tur |ndVqdSr)rrrrrrrz(ParserElement.__mul__..NNz8cannot 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|dStSrB)r>nmakeOptionalListrrrrsz/ParserElement.__mul__..makeOptionalList) rrtuplerrUr<r?r ValueErrorr()rr minElements optElementsrrrr__mul__sX          zParserElement.__mul__cCs ||Sr)rrrrr__rmul__rzParserElement.__rmul__cCsZ|tur t|ddSt|tr||}t|ts'tjdt|t dddSt ||gS)zL Implementation of | operator - returns :class:`MatchFirst` T) must_skiprrrN) rrrr=rrGrrrrr9rrrr__or__s     zParserElement.__or__cCsBt|tr ||}t|tstjdt|tdddS||BS)z` Implementation of | operator when left operand is not a :class:`ParserElement` rrrNrrrrr__ror__ rzParserElement.__ror__cCFt|tr ||}t|tstjdt|tdddSt||gS)zD Implementation of ^ operator - returns :class:`Or` rrrN) rr=rrGrrrrr?rrrr__xor__     zParserElement.__xor__cCsBt|tr ||}t|tstjdt|tdddS||AS)z` Implementation of ^ operator when left operand is not a :class:`ParserElement` rrrNrrrrr__rxor__ rzParserElement.__rxor__cCr)zF Implementation of & operator - returns :class:`Each` rrrN) rr=rrGrrrrr.rrrr__and__' rzParserElement.__and__cCsBt|tr ||}t|tstjdt|tdddS||@S)z` Implementation of & operator when left operand is not a :class:`ParserElement` rrrNrrrrr__rand__3 rzParserElement.__rand__cCr)zH Implementation of ~ operator - returns :class:`NotAny` )r;rrrr __invert__? szParserElement.__invert__cCstd|jj)Nz%r object is not iterable)r?rrrrrrr]E szParserElement.__iter__c Cszt|tr |f}t|Wn ty||f}Ynwt|dkr``s to spaces before parsing the input string. Must be called before ``parseString`` when the input grammar contains elements that match ```` characters. T)rrrrr parseWithTabs rzParserElement.parseWithTabscCsNt|tr t|}t|tr||jvr|j||S|jt||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'] )rr=rNrrrrrrrignore s    zParserElement.ignorecCs"|pt|pt|p tf|_d|_|S)zT Enable display of debugging messages while doing pattern matching. T)rrrrr)r startAction successActionexceptionActionrrrsetDebugActions s zParserElement.setDebugActionscCs |r |ttt|Sd|_|S)a Enable display of debugging messages while doing pattern matching. Set ``flag`` to True to enable, False to disable. Example:: wd = Word(alphas).setName("alphaword") integer = Word(nums).setName("numword") term = wd | integer # turn on debugging for wd wd.setDebug() OneOrMore(term).parseString("abc 123 xyz 890") prints:: Match alphaword at loc 0(1,1) Matched alphaword -> ['abc'] Match alphaword at loc 3(1,4) Exception raised:Expected alphaword (at char 4), (line:1, col:5) Match alphaword at loc 7(1,8) Matched alphaword -> ['xyz'] Match alphaword at loc 11(1,12) Exception raised:Expected alphaword (at char 12), (line:1, col:13) Match alphaword at loc 15(1,16) Exception raised:Expected alphaword (at char 15), (line:1, col:16) The output shown is that produced by the default debug actions - custom debug actions can be specified using :class:`setDebugActions`. Prior to attempting to match the ``wd`` expression, the debugging message ``"Match at loc (,)"`` is shown. Then if the parse succeeds, a ``"Matched"`` message is shown, or an ``"Exception raised"`` message is shown. Also note the use of :class:`setName` to assign a human-readable name to the expression, which makes debugging and exception messages easier to understand - for instance, the default name created for the :class:`Word` expression without calling ``setName`` is ``"W:(ABCD...)"``. F)rrrrr)rflagrrrr s %zParserElement.setDebugcC|jSrrrrrrr zParserElement.__str__cCrrrrrrrr rzParserElement.__repr__cCsd|_d|_|Sr)rr rrrrr szParserElement.streamlinecCsdSrrrrrrcheckRecursion rJzParserElement.checkRecursioncCs|gdS)zj Check defined expressions for valid structure, check for infinite recursive definitions. N)r)r validateTracerrrvalidate szParserElement.validatec Csz|}Wn"ty(t|d }|}Wdn1s!wYYnwz|||WStyQ}ztjr<t|dddurK||j |_ |d}~ww)z Execute the parse expression on the given file or filename. If a filename is specified (instead of a file object), the entire file is opened, read, and closed before parsing. rNr) readropenrr@rGrrrr)rfile_or_filenamer file_contentsfr rrr parseFile s$    zParserElement.parseFilecCs>||urdSt|tr||St|trt|t|kSdSr=)rr=rrGvarsrrrr__eq__ s   zParserElement.__eq__cC ||k Srrrrrr__ne__$ rzParserElement.__ne__cCrr)idrrrr__hash__' rzParserElement.__hash__cC||kSrrrrrr__req__* rzParserElement.__req__cCrrrrrrr__rne__- rzParserElement.__rne__cCs.z |jt||dWdStyYdSw)a Method for quick testing of a parser against a test string. Good for simple inline microtests of sub expressions while building up larger parser. Parameters: - testString - to test against this expression for a match - parseAll - (default= ``True``) - flag to pass to :class:`parseString` when running tests Example:: expr = Word(nums) assert expr.matches("100") rTF)rrr@)r testStringrrrrr0 s  zParserElement.matches#c  Cst|trtttj|}t|trt|}|dur!t j }|j } g} g} d} td t dt} d}|D]/}|durG||dsK| rQ|sQ| |q:|sTq:| r]dd| nd|g}g} z| ||}|j||d}Wnuty}zIt|trd nd}d|vr|t|j||d t|j|d d |n |d |jd ||d t|| o|} |}WYd}~nd}~wty}z|dt|| o|} |}WYd}~nld}~ww| o| } |durHz)|||}|durt|tr ||n|t|n||Wn3tyG}z||j|d|d|jt |j|WYd}~nd}~ww||j|d|rc|r\|d| d|| ||fq:| | fS)as 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= ``True``) - flag to pass to :class:`parseString` when running tests - comment - (default= ``'#'``) - expression for indicating embedded comments in the test string; pass None to disable comment filtering - fullDump - (default= ``True``) - dump results as list followed by results names in nested outline; if False, only dump nested list - printResults - (default= ``True``) prints test output to stdout - failureTests - (default= ``False``) indicates if these tests are expected to fail parsing - postParse - (default= ``None``) optional callback for successful parse results; called as `fn(test_string, parse_results)` and returns a string to be added to the test output - file - (default=``None``) optional file-like object to which test output will be written; if None, will default to ``sys.stdout`` Returns: a (success, results) tuple, where success indicates that all tests succeeded (or failed if ``failureTests`` is True), and the results contain a list of lines of each test's output Example:: number_expr = pyparsing_common.number.copy() result = number_expr.runTests(''' # unsigned integer 100 # negative integer -100 # float with scientific notation 6.02e23 # integer with scientific notation 1e-12 ''') print("Success" if result[0] else "Failed!") result = number_expr.runTests(''' # stray character 100Z # missing leading digit before '.' -.100 # too many '.' 3.14.159 ''', failureTests=True) print("Success" if result[0] else "Failed!") prints:: # unsigned integer 100 [100] # negative integer -100 [-100] # float with scientific notation 6.02e23 [6.02e+23] # integer with scientific notation 1e-12 [1e-12] Success # stray character 100Z ^ FAIL: Expected end of text (at char 3), (line:1, col:4) # missing leading digit before '.' -.100 ^ FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1) # too many '.' 3.14.159 ^ FAIL: Expected end of text (at char 4), (line:1, col:5) Success Each test string must be on a single line. If you want to test a string that spans multiple lines, create a test like this:: expr.runTest(r"this is a test\n of strings that spans \n 3 lines") (Note that this is a raw string literal, you must include the leading 'r'.) NT\nruFrrz(FATAL)rrrzFAIL: zFAIL-EXCEPTION: )rz{0} failed: {1}: {2})!rr=r8r6rrrstrip splitlinesr7rstdoutwriter9rrr}rrrrlstriprr@rDrkrr]rrErrrr)rtestsrcommentfullDump printResults failureTestsrIfileprint_ allResultscommentssuccessrBOMrrresultrrr pp_valuer?rrrrunTestsD sz `   $     ( zParserElement.runTestsFTr/)rr)TrTTFNN)Srrrrrrrrrrrrrrr#r r2rr9r:r<rArErrIrrXrYr+rlrurxr~r r}rrr0rrrr_MAX_INTrrrrrrrrrrrrrrrrrr]r'rrrrrrrrrrrrrrrrrrrrrrrrrrGGs       1    W    ":J 0 &  J      $    +    rGcs6eZdZd fdd ZddZddZdd ZZS) rFcs>tt|t|tdd|_|j|_||_||_ dS)Nr/...) superrrrr/rr r/anchorr)rrrrrrr s  z_PendingSkip.__init__cs\t|dd}jr'dd}fdd}j||||B|Sj||S)NrrcSs0|jr |jdgkr|d=|dddSdS)Nrr_skipped)rr0rurrrrr sz'_PendingSkip.__add__..must_skipcs@|jdddgkr|d}dtjd|d<dSdS)Nrrrz missing .show_skip)rKrrrr9)rrskipperrrrrrr s  z_PendingSkip.__add__cCrr)r rrrrr rz_PendingSkip.__repr__cGstd)NzBuse of `...` expression without following SkipTo target expression)rrrrrrr rz_PendingSkip.parseImplr)rrrrrrr __classcell__rrrrr s rc eZdZdZfddZZS)rOzYAbstract :class:`ParserElement` subclass, for defining atomic matching patterns. cstt|jdddSNFr)rrOrrrrrr rhzToken.__init__rrrrrr rrrrrO srOcr )r/z'An empty token, will always match. cs$tt|d|_d|_d|_dS)Nr/TF)rr/rr/rrrrrrr s zEmpty.__init__rrrrrr/ sr/c*eZdZdZfddZdddZZS)r:z#A token that will never match. cs*tt|d|_d|_d|_d|_dS)Nr:TFzUnmatchable token)rr:rr/rrrrrrrr s  zNoMatch.__init__TcCst|||j|r)rBrrFrrrr$ zNoMatch.parseImplrrrrrrrr rrrrr: s r:cr)r7aToken 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 :class:`CaselessLiteral`. For keyword matching (force word break before and after the matched string), use :class:`Keyword` or :class:`CaselessKeyword`. cstt|||_t||_z|d|_Wnty*tj dt ddt |_ Ynwdt |j|_d|j|_d|_d|_|jdkrOt|turQt|_ dSdSdS) Nrz2null string passed to Literal; use Empty() insteadrr"%s"rFr)rr7rmatchrmatchLenfirstMatchCharr@rrrr/rrr/rrrr_SingleCharLiteralr matchStringrrrr6 s$     zLiteral.__init__TcCs<|||jkr||j|r||j|jfSt|||j|r)rrrrrBrrFrrrrJ zLiteral.parseImplrrrrrrr7( s r7c@eZdZdddZdS)rTcCs,|||jkr|d|jfSt|||j|rB)rrrBrrFrrrrP sz_SingleCharLiteral.parseImplNrrrrrrrrrrO rcsLeZdZdZedZdfdd Zddd Zfd d Ze d d Z Z S)r4aToken to exactly match a specified string as a keyword, that is, it must be immediately followed by a non-keyword character. Compare with :class:`Literal`: - ``Literal("if")`` will match the leading ``'if'`` in ``'ifAndOnlyIf'``. - ``Keyword("if")`` will not; it will only match the leading ``'if'`` in ``'if x=1'``, or ``'if(y==2)'`` Accepts two optional constructor arguments in addition to the keyword string: - ``identChars`` is a string of characters that would be valid identifier characters, defaulting to all alphanumerics + "_" and "$" - ``caseless`` allows case-insensitive matching, default is ``False``. Example:: Keyword("start").parseString("start") # -> ['start'] Keyword("start").parseString("starting") # -> Exception For case-insensitive matching, use :class:`CaselessKeyword`. _$NFcstt||durtj}||_t||_z|d|_Wnty.t j dt ddYnwd|j|_ d|j |_ d|_d|_||_|rO||_|}t||_dS)Nrz2null string passed to Keyword; use Empty() insteadrrrrF)rr4rDEFAULT_KEYWORD_CHARSrrrrr@rrrr/rrrcaselessupper caselessmatchr identChars)rrr#r rrrrs s*      zKeyword.__init__TcCs|jr>||||j|jkr=|t||jks&|||j|jvr=|dks5||d|jvr=||j|jfSn;|||jkry|jdksQ||j|ry|t||jksd|||j|jvry|dksq||d|jvry||j|jfSt |||j |rJ) r rr!r"rr#rrrrBrrFrrrr szKeyword.parseImplcstt|}tj|_|Sr)rr4rrr#)rrrrrr sz Keyword.copycCr)z,Overrides the default Keyword chars N)r4rrrrrsetDefaultKeywordChars s zKeyword.setDefaultKeywordCharsrr) rrrrrWrrrrrr$r rrrrr4X s  r4cr)r*afToken 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 :class:`CaselessKeyword`.) cs6tt||||_d|j|_d|j|_dS)Nz'%s'r)rr*rr! returnStringr/rrrrrr s zCaselessLiteral.__init__TcCs<||||j|jkr||j|jfSt|||j|r)rr!rr%rBrrFrrrr rzCaselessLiteral.parseImplrrrrrrr* s r*c"eZdZdZdfdd ZZS)r)z Caseless version of :class:`Keyword`. Example:: OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD'] (Contrast with example for :class:`CaselessLiteral`.) Ncstt|j||dddS)NTr )rr)r)rrr#rrrr szCaselessKeyword.__init__rrrrrrr) s r)cs,eZdZdZdfdd Zd ddZZS) raA variation on :class:`Literal` which matches "close" matches, that is, strings with at most 'n' mismatching characters. :class:`CloseMatch` takes parameters: - ``match_string`` - string to be matched - ``maxMismatches`` - (``default=1``) maximum number of mismatches allowed to count as a match The results from a successful parse will contain the matched text from the input string and the following named results: - ``mismatches`` - a list of the positions within the match_string where mismatches were found - ``original`` - the original match_string used to compare against the input string If ``mismatches`` is an empty list, then the match was an exact match. Example:: patt = CloseMatch("ATCATCGAATGGA") patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']}) patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1) # exact match patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']}) # close match allowing up to 2 mismatches patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2) patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']}) rcsBtt|||_||_||_d|j|jf|_d|_d|_dS)Nz&Expected %r (with up to %d mismatches)F) rrrr/ match_string maxMismatchesrrr)rr(r)rrrr s zCloseMatch.__init__TcCs|}t|}|t|j}||krY|j}d}g} |j} tt||||D]\}} | \} } | | kr?| |t| | kr?nq&|d}t|||g}||d<| |d<||fSt|||j|)Nrroriginal mismatches) rr(r)rrrrErBr)rrrr)startrDmaxlocr(match_stringlocr+r)s_msrcmatresultsrrrr s*  zCloseMatch.parseImpl)rrrrrrrr s  rcs8eZdZdZd fdd Zdd d Zfd d ZZS)rRaX Token for matching words composed of allowed character sets. Defined with string containing all allowed initial characters, an optional string containing allowed body characters (if omitted, defaults to the initial character set), and an optional minimum, maximum, and/or exact length. The default value for ``min`` is 1 (a minimum value < 1 is not valid); the default values for ``max`` and ``exact`` are 0, meaning no maximum or exact length restriction. An optional ``excludeChars`` parameter can list characters that might be found in the input ``bodyChars`` string; useful to define a word of all printables except for one or two characters, for instance. :class:`srange` is useful for defining custom character set strings for defining ``Word`` expressions, using range notation from regular expression character sets. A common mistake is to use :class:`Word` to match a specific literal string, as in ``Word("Address")``. Remember that :class:`Word` uses the string argument to define *sets* of matchable characters. This expression would match "Add", "AAA", "dAred", or any other word made up of the characters 'A', 'd', 'r', 'e', and 's'. To match an exact literal string, use :class:`Literal` or :class:`Keyword`. pyparsing includes helper strings for building Words: - :class:`alphas` - :class:`nums` - :class:`alphanums` - :class:`hexnums` - :class:`alphas8bit` (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.) - :class:`punc8bit` (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.) - :class:`printables` (any non-whitespace character) Example:: # a word composed of digits integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9")) # a word with a leading capital, and zero or more lowercase capital_word = Word(alphas.upper(), alphas.lower()) # hostnames are alphanumeric, with leading alpha, and '-' hostname = Word(alphas, alphanums + '-') # roman numeral (not a strict parser, accepts invalid mix of characters) roman = Word("IVXLCDM") # any string of non-whitespace characters, except for ',' csv_value = Word(printables, excludeChars=",") NrrFcstt|r'tdfdd|D}|r'dfdd|D}||_t||_|r:||_t||_n||_t||_|dk|_ |dkrOt d||_ |dkrZ||_ nt |_ |dkrg||_ ||_ t||_d|j|_d |_||_d |j|jvr|dkr|dkr|dkr|j|jkrd t|j|_n#t|jdkrd t|jt|jf|_n d t|jt|jf|_|jrd|jd|_z t|j|_Wn tyd|_YdSw|jj|_t|_dSdSdSdSdS)Nrc3|] }|vr|VqdSrrr excludeCharsrrrH rz Word.__init__..c3r3rrrr4rrrJ rrrzZcannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permittedrFrz[%s]+z%s[%s]*z [%s][%s]*z\b)rrRrrr initCharsOrig initChars bodyCharsOrig bodyChars maxSpecifiedrminLenmaxLenrrr/rr asKeyword_escapeRegexRangeCharsreStringrrescapecompilerrre_match _WordRegexr)rr7r9minmaxexactr=r5rr4rrD s^      (       z Word.__init__Tc Cs|||jvrt|||j||}|d7}t|}|j}||j}t||}||kr>|||vr>|d7}||kr>|||vs0d}|||jkrJd}n+|jrZ||krZ|||vrZd}n|j ru|dkri||d|vss||kru|||vrud}|rt|||j|||||fS)NrFTr) r7rBrrr9r<rDr;r:r=) rrrr)r,rD bodycharsr-throwExceptionrrrr} s.  zWord.parseImplcsxztt|WStyYnw|jdur9dd}|j|jkr1d||j||jf|_|jSd||j|_|jS)NcSs t|dkr|dddS|S)Nrrgrrrr charsAsStr s z Word.__str__..charsAsStrz W:(%s, %s)zW:(%s))rrRrrr r6r8)rrKrrrr s   z Word.__str__)NrrrFNrrrrrrrrr rrrrrR s 4 9rRc@r)rCTcCs4|||}|st|||j||}||fSr)rBrBrendgroup)rrrr)rrrrr s  z_WordRegex.parseImplNrrrrrrrC rrCcs"eZdZdZdfdd ZZS)rVzA short-cut class for defining ``Word(characters, exact=1)``, when defining a match of any single character in a string of characters. FNcsZtt|j|d||ddtd|j|_|rd|j|_t|j|_|jj |_ dS)Nr)rFr=r5[%s]rz\b%s\b) rrVrr>rr7r?rrArrB)rcharsetr=r5rrrr s  z Char.__init__)FNrrrrrrV srVcsTeZdZdZdfdd ZdddZdd d Zdd d Zfd dZddZ Z S)rJahToken for matching strings that match a given regular expression. Defined with string specifying the regular expression in a form recognized by the stdlib Python `re module `_. If the given regex contains named groups (defined using ``(?P...)``), these will be preserved as named parse results. If instead of the Python stdlib re module you wish to use a different RE module (such as the `regex` module), you can replace it by either building your Regex object with a compiled RE that was compiled using regex: Example:: realnum = Regex(r"[+-]?\d+\.\d*") date = Regex(r'(?P\d{4})-(?P\d\d?)-(?P\d\d?)') # ref: https://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?{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})") # use regex module instead of stdlib re module to construct a Regex using # a compiled regular expression import regex parser = pp.Regex(regex.compile(r'[0-9]')) rFcstt|t|tr?|stjdtdd||_||_ zt |j|j |_ |j|_ Wn/t jy>tjd|tddwt|drWt|drW||_ |j|_|_ ||_ ntd|j j|_t||_d|j|_d |_|d d u|_||_||_|jr|j|_|jr|j|_d Sd S) aThe parameters ``pattern`` and ``flags`` are passed to the ``re.compile()`` function as-is. See the Python `re module `_ module for an explanation of the acceptable patterns and flags. z0null string passed to Regex; use Empty() insteadrr$invalid pattern (%s) passed to RegexpatternrzCRegex may only be constructed with a string or a compiled RE objectrFrN)rrJrrr=rrrrRflagsrrAr? sre_constantserrorrar?rrBrr/rrr asGroupListasMatchparseImplAsGroupListrparseImplAsMatch)rrRrSrVrWrrrr sD       zRegex.__init__Tc Csb|||}|st|||j||}t|}|}|r-|D]\}}|||<q$||fSr)rBrBrrMrErN groupdictrN) rrrr)rrdrGrCrrrr s   zRegex.parseImplcCs8|||}|st|||j||}|}||fSr)rBrBrrMgroupsrrrr)rrrrrrX s zRegex.parseImplAsGroupListcCs4|||}|st|||j||}|}||fSr)rBrBrrMr]rrrrY! s zRegex.parseImplAsMatchcsDztt|WStyYnw|jdurdt|j|_|jS)NzRe:(%s))rrJrrr r)rRrrrrr* s  z Regex.__str__csljrtjdtddtjr tr tjdtddtjr*fdd}nfdd}|S)a Return Regex with an attached parse action to transform the parsed result as if called using `re.sub(expr, repl, string) `_. Example:: make_html = Regex(r"(\w+):(.*?):").sub(r"<\1>\2") print(make_html.transformString("h1:main title:")) # prints "

main title

" z-cannot use sub() with Regex(asGroupList=True)rrz9cannot use sub() with a callable with Regex(asMatch=True)cs|dSr()expandrR)replrrrK r%zRegex.sub..pacsj|dSr()rrHr_r`rrrrN s)rVrrr SyntaxErrorrWr4r9)rr`rrrarrH5 s  z Regex.sub)rFFr) rrrrrrrXrYrrHr rrrrrJ s -  rJcs<eZdZdZ  d fdd Zd ddZfd d ZZS) rHa& Token for matching strings that are delimited by quoting characters. Defined with the following parameters: - quoteChar - string of one or more characters defining the quote delimiting string - escChar - character to escape quotes, typically backslash (default= ``None``) - escQuote - special quote sequence to escape an embedded quote string (such as SQL's ``""`` to escape an embedded ``"``) (default= ``None``) - multiline - boolean indicating whether quotes can span multiple lines (default= ``False``) - unquoteResults - boolean indicating whether the matched text should be unquoted (default= ``True``) - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default= ``None`` => same as quoteChar) - convertWhitespaceEscapes - convert escaped whitespace (``'\t'``, ``'\n'``, etc.) to actual whitespace (default= ``True``) Example:: qs = QuotedString('"') print(qs.searchString('lsjdf "This is the quote" sldjf')) complex_qs = QuotedString('{{', endQuoteChar='}}') print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf')) sql_qs = QuotedString('"', escQuote='""') print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf')) prints:: [['This is the quote']] [['This is the "quote"']] [['This is the quote with "embedded" quotes']] NFTc sHtt|}|stjdtddt|dur|}n|}|s0tjdtddt|_t |_ |d_ |_ t |_ |_|_|_|_|rttjtjB_dtjtj d|durnt|podf_nd_dtjtj d|durt|pdf_t j d krjd d fd d tt j d ddDd7_|rÈjdt|7_|rڈjdt|7_tjd_jdtj 7_ztjj_j_jj_Wnt j!ytjdjtddwt"_#dj#_$d_%d_&dS)Nz$quoteChar cannot be the empty stringrrz'endQuoteChar cannot be the empty stringrz %s(?:[^%s%s]rz%s(?:[^%s\n\r%s]rz|(?:z)|(?:c3s6|]}dtjd|tj|fVqdS)z%s[^%s]N)rr@ endQuoteCharr>rrrrr s  z(QuotedString.__init__..r)z|(?:%s)z|(?:%s.)z(.)z)*%srQrFT)'rrHrrrrrrb quoteCharr quoteCharLenfirstQuoteCharrcendQuoteCharLenescCharescQuoteunquoteResultsconvertWhitespaceEscapesr MULTILINEDOTALLrSr@r>rRrrKescCharReplacePatternrAr?rrBrTrUrr/rrr)rrerirj multilinerkrcrlrrrry sv            zQuotedString.__init__c Cs|||jkr |||pd}|st|||j||}|}|jre||j|j }t |t red|vrO|j rOddddd}| D] \}}| ||}qD|jrZt|jd|}|jre| |j|j}||fS)Nr r  )\trz\fz\rz\g<1>)rgrBrBrrMrNrkrfrhrr=rlrNrrirrHrorjrc) rrrr)rrws_mapwslitwscharrrrr s* zQuotedString.parseImplcsFztt|WStyYnw|jdur d|j|jf|_|jS)Nz.quoted string, starting with %s ending with %s)rrHrrr rercrrrrr s  zQuotedString.__str__)NNFTNTrrLrrrrrHR s& A#rHcs8eZdZdZd fdd Zd ddZfd d ZZS) r+aToken for matching words composed of characters *not* in a given set (will include whitespace in matched characters if not listed in the provided exclusion set - see example). Defined with string containing all disallowed characters, and an optional minimum, maximum, and/or exact length. The default value for ``min`` is 1 (a minimum value < 1 is not valid); the default values for ``max`` and ``exact`` are 0, meaning no maximum or exact length restriction. Example:: # define a comma-separated-value as anything that is not a ',' csv_value = CharsNotIn(',') print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213")) prints:: ['dkls', 'lsdkjf', 's12 34', '@!#', '213'] rrcstt|d|_||_|dkrtd||_|dkr ||_nt|_|dkr-||_||_t ||_ d|j |_ |jdk|_ d|_ dS)NFrzfcannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permittedrr)rr+rr notCharsrr;r<rrr/rrr)rrxrDrErFrrrr s     zCharsNotIn.__init__TcCs|||jvrt|||j||}|d7}|j}t||jt|}||kr:|||vr:|d7}||kr:|||vs,|||jkrIt|||j|||||fSrB)rxrBrrDr<rr;)rrrr)r,notcharsmaxlenrrrrszCharsNotIn.parseImplcshztt|WStyYnw|jdur1t|jdkr+d|jdd|_|jSd|j|_|jS)NrIz !W:(%s...)z!W:(%s))rr+rrr rrxrrrrr&s   zCharsNotIn.__str__)rrrrrLrrrrr+ s  r+cseZdZdZidddddddd d d d d ddddddddddddddddddd d!d"d#d$d%d&d'd(d)d*Zd3fd.d/ Zd4d1d2ZZS)5rQaSpecial matching class for matching whitespace. Normally, whitespace is ignored by pyparsing grammars. This class is included when some whitespace structures are significant. Define with a string containing the whitespace characters to be matched; default is ``" \t\r\n"``. Also takes optional ``min``, ``max``, and ``exact`` arguments, as defined for the :class:`Word` class. rzrqzrzrszrrz zu zu᠎zu z u z u z u z u zu zu zu zu zz z zzzz)u u u​u u u　 rrcstt|_dfddjDdddjD_d_dj_ |_ |dkr:|_ nt _ |dkrI|_ |_ dSdS)Nrc3s|] }|jvr|VqdSr) matchWhiterrrrrYrz!White.__init__..css|]}tj|VqdSr)rQ whiteStrsrrrrr[rTrr) rrQrr}rrr r/rrr;r<r)rwsrDrErFrrrrVs   zWhite.__init__TcCs|||jvrt|||j||}|d7}||j}t|t|}||kr;|||jvr;|d7}||kr;|||jvs,|||jkrJt|||j|||||fSrB)r}rBrr<rDrr;)rrrr)r,r-rrrrjs zWhite.parseImpl)r|rrrr)rrrrr~rrr rrrrrQ4s\     rQceZdZfddZZS)_PositionTokencs(tt||jj|_d|_d|_dSr=)rrrrrr/rrrrrrr{  z_PositionToken.__init__rrrrr rrrrrzrcs2eZdZdZfddZddZd ddZZS) r2zaToken to advance to a specific column of input text; useful for tabular report scraping. cstt|||_dSr)rr2rr])rcolnorrrr zGoToColumn.__init__cCs~t|||jkr=t|}|jr|||}||kr=||r=t|||jkr=|d7}||kr=||r=t|||jks'|SrB)r]rrrAisspace)rrrrDrrrrEs $$zGoToColumn.preParseTcCsDt||}||jkrt||d|||j|}|||}||fS)NzText not in expected columnr]rB)rrrr)thiscolnewlocrrrrrs   zGoToColumn.parseImplr)rrrrrrErr rrrrr2s   r2cr)r6aMatches if current position is at the beginning of a line within the parse string Example:: test = '''\ AAA this line AAA and this line AAA but not this one B AAA and definitely not this one ''' for t in (LineStart() + 'AAA' + restOfLine).searchString(test): print(t) prints:: ['AAA', ' this line'] ['AAA', ' and this line'] ctt|d|_dS)NzExpected start of line)rr6rrrrrrrrzLineStart.__init__TcCs&t||dkr |gfSt|||j|rB)r]rBrrFrrrrszLineStart.parseImplrrrrrrr6 r6cr)r5zTMatches if current position is at the end of a line within the parse string cs,tt||tjddd|_dS)NrrzExpected end of line)rr5rrrGrrrrrrrrs zLineEnd.__init__TcCs\|t|kr||dkr|ddfSt|||j||t|kr&|dgfSt|||j|)NrrrrBrrFrrrrs     zLineEnd.parseImplrrrrrrr5s r5cr)rMzLMatches if current position is at the beginning of the parse string cr)NzExpected start of text)rrMrrrrrrrrzStringStart.__init__TcCs0|dkr|||dkrt|||j||gfSr()rErBrrFrrrrszStringStart.parseImplrrrrrrrMs rMcr)rLzBMatches if current position is at the end of the parse string cr)NzExpected end of text)rrLrrrrrrrrzStringEnd.__init__TcCsX|t|krt|||j||t|kr|dgfS|t|kr$|gfSt|||j|rBrrFrrrrs    zStringEnd.parseImplrrrrrrrLs rLc.eZdZdZeffdd ZdddZZS)rTayMatches if the current position is at the beginning of a Word, and is not preceded by any character in a given set of ``wordChars`` (default= ``printables``). To emulate the ```` behavior of regular expressions, use ``WordStart(alphanums)``. ``WordStart`` will also match at the beginning of the string being parsed, or at the beginning of a line. cs"tt|t||_d|_dS)NzNot at the start of a word)rrTrr wordCharsrrrrrrrs  zWordStart.__init__TcCs@|dkr||d|jvs|||jvrt|||j||gfSrJ)rrBrrFrrrrs zWordStart.parseImplrrrrrrzrrr rrrrrTsrTcr)rSa_Matches if the current position is at the end of a Word, and is not followed by any character in a given set of ``wordChars`` (default= ``printables``). To emulate the ```` behavior of regular expressions, use ``WordEnd(alphanums)``. ``WordEnd`` will also match at the end of the string being parsed, or at the end of a line. cs(tt|t||_d|_d|_dS)NFzNot at the end of a word)rrSrrrr rrrrrr rzWordEnd.__init__TcCsPt|}|dkr$||kr$|||jvs||d|jvr$t|||j||gfSrJ)rrrBr)rrrr)rDrrrrs zWordEnd.parseImplrrrrrrrSsrScszeZdZdZdfdd ZddZddZfd d Zfd d Zfd dZ dddZ fddZ dfdd Z Z S)rCz]Abstract subclass of ParserElement, for combining and post-processing parsed tokens. Fcstt|t|trt|}t|tr|g_n@t|t r(|g_n6t|t rIt|}t dd|DrCfdd|D}t|_nzt|_Wn t y]|g_Ynwd_ dS)Ncsrr)rr=)rrrrrr*rz+ParseExpression.__init__..c3s(|]}t|tr|n|VqdSr)rr=rrr?rrrr+&F)rrCrrr:r8r=rexprsrGr rr?rrrrrrrrs$         zParseExpression.__init__cCs|j|d|_|Sr)rrr rrrrr4s zParseExpression.appendcCs0d|_dd|jD|_|jD]}|q|S)zExtends ``leaveWhitespace`` defined in base class, and also invokes ``leaveWhitespace`` on all contained expressions.FcSg|]}|qSrrrrrrr=rDz3ParseExpression.leaveWhitespace..)r rr)rr?rrrr9s   zParseExpression.leaveWhitespacecstt|tr"||jvr tt|||jD] }||jdq|Stt|||jD] }||jdq-|Sr^)rrNrrrCrr)rrr?rrrrB    zParseExpression.ignorecsLztt|WStyYnw|jdur#d|jjt|jf|_|jSNz%s:(%s)) rrCrrr rrrrrrrrrNs  zParseExpression.__str__cs tt||jD]}|q t|jdkr|jd}t||jrO|jsO|jdurO|j sO|jdd|jdg|_d|_ |j |j O_ |j |j O_ |jd}t||jr|js|jdur|j s|jdd|jdd|_d|_ |j |j O_ |j |j O_ dt ||_|S)Nrrrrr)rrCrrrrrrr rr rrrr)rr?rrrrrXs8        zParseExpression.streamlineNcCsB|dur|ngdd|g}|jD]}||q|gdSr)rrr)rrtmpr?rrrrzs  zParseExpression.validatecs$tt|}dd|jD|_|S)NcSrrrrrrrrrDz(ParseExpression.copy..)rrCrrrrrrrszParseExpression.copycsVtjr"|jD]}t|tr!|jr!tjdd|t |j |jddqt t | ||S)N]{0}: setting results name {1!r} on {2} expression collides with {3!r} on contained expressionr rr)rr rrrGr rrrrrrrCr rr/r"r?rrrr s zParseExpression._setResultsNamerr)rrrrrrrrrrrrr r rrrrrCs " rCcs`eZdZdZGdddeZdfdd ZfddZdd d Zd d Z d dZ ddZ Z S)r(a Requires all given :class:`ParseExpression` s to be found in the given order. Expressions may be separated by whitespace. May be constructed using the ``'+'`` operator. May also be constructed using the ``'-'`` operator, which will suppress backtracking. Example:: integer = Word(nums) name_expr = OneOrMore(Word(alphas)) expr = And([integer("id"), name_expr("name"), integer("age")]) # more easily written as: expr = integer("id") + name_expr("name") + integer("age") cr)zAnd._ErrorStopcs*ttj|j|i|d|_|dS)N-)rr(rrr/rrrrrrs zAnd._ErrorStop.__init__rrrrrrrrTcst|}|rFt|vrFg}t|D]/\}}|tur:|t|dkr6t||djd}|t|dqtd||q||dd<t t | ||t dd|jD|_ ||jdj|jdj|_d|_dS) Nrrrz0cannot construct And with sequence ending in ...cs|]}|jVqdSrrrrrrrzAnd.__init__..rT)r8rrrr/rrrKrrr(rr5rrr r r)rrrrrr skipto_argrrrrs     z And.__init__cs|jrStdd|jddDrSt|jddD]/\}}|dur#qt|trI|jrIt|jdtrI|jd|j|d|jd<d|j|d<qdd|jD|_tt|t dd|jD|_ |S)Ncss0|]}t|to|jot|jdtVqdSrN)rrCrrrrrrrs(z!And.streamline..rrcSsg|]}|dur|qSrrrrrrrz"And.streamline..csrrrrrrrrr) rrrrrCrrr(rr5r)rrr?rrrrs&  zAnd.streamlinec Cs|jdj|||dd\}}d}|jddD]W}t|tjr"d}q|r[z ||||\}}Wn4ty7tyJ}zd|_t|d}~wt yZt|t ||j |w||||\}}|sj| rn||7}q||fS)NrFrrT) rr0rr(rrFr@rrr@rrrp) rrrr) resultlist errorStopr? exprtokensrrrrrs.     z And.parseImplcCt|tr ||}||Srrr=rrrrrrr|   z And.__iadd__cCs8|dd|g}|jD] }|||jsdSq dSr)rrrrrsubRecCheckListr?rrrrs  zAnd.checkRecursioncC@t|dr|jS|jdurdddd|jDd|_|jS)Nr/{rcsr3rrrrrrrrezAnd.__str__..}rar/r rrrrrrr   z And.__str__r) rrrrr/rrrrr|rrr rrrrr(s  r(c^eZdZdZdfdd ZfddZddd Zd d Zd d ZddZ dfdd Z Z S)r?aRequires that at least one :class:`ParseExpression` is found. If two expressions match, the expression that matches the longest string will be used. May be constructed using the ``'^'`` operator. Example:: # construct Or using '^' operator number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums)) print(number.searchString("123 3.1416 789")) prints:: [['123'], ['3.1416'], ['789']] Fc<tt||||jrtdd|jD|_dSd|_dS)NcsrrrrrrrrrzOr.__init__..T)rr?rrrrrrrrr z Or.__init__c.tt|tjrtdd|jD|_|S)Ncsrrr rrrrrrz Or.streamline..)rr?rr'collect_all_And_tokensrrr rrrrrz Or.streamlineTc Csd}d}g}|jD]M}z|||}Wn;ty2} zd| _| j|kr(| }| j}WYd} ~ q d} ~ wtyNt||krLt|t||j|}t|}Yq w|||fq |r|j t ddd|sq|dd} | |||Sd} |D]M\} } | | dkr| Sz | |||\}}Wnty} zd| _| j|kr| }| j}WYd} ~ qud} ~ ww|| kr||fS|| dkr||f} qu| dkr| S|dur|j|_ |t||d|)NrrT)rvrMrr no defined alternatives to match) rrXrBrrr@rrrsortrr0r)rrrr) maxExcLoc maxExceptionrr?loc2rS best_exprlongestloc1expr1rrrrrs`          z Or.parseImplcCrrrrrrr__ixor__[rz Or.__ixor__cCr)Nr/rz ^ csr3rrrrrrrerezOr.__str__..rrrrrrr`rz Or.__str__cC,|dd|g}|jD]}||q dSrrrrrrrri  zOr.checkRecursioncPtjstjrtdd|jDrtjdd|t |j ddt t | ||S)Ncsrrrr(rrrrrqrz%Or._setResultsName..{0}: setting results name {1!r} on {2} expression may only return a single token for an And alternative, in future will return the full list of tokensrrr)r'rrrrrrrrrrrr?r r!rrrr n zOr._setResultsNamerr) rrrrrrrrrrr r rrrrr?s  = r?cr)r9aRequires that at least one :class:`ParseExpression` is found. If two expressions match, the first one listed is the one that will match. May be constructed using the ``'|'`` operator. Example:: # construct MatchFirst using '|' operator # watch the order of expressions to match number = Word(nums) | Combine(Word(nums) + '.' + Word(nums)) print(number.searchString("123 3.1416 789")) # Fail! -> [['123'], ['3'], ['1416'], ['789']] # put more selective expression first number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums) print(number.searchString("123 3.1416 789")) # Better -> [['123'], ['3.1416'], ['789']] Fcr)Ncsrrrrrrrrrz&MatchFirst.__init__..T)rr9rrrrrrrrrrzMatchFirst.__init__cr)Ncsrrrrrrrrrz(MatchFirst.streamline..)rr9rr'rrrr rrrrrrzMatchFirst.streamlineTc Csd}d}|jD]F}z ||||}|WSty1}z|j|kr'|}|j}WYd}~qd}~wtyMt||krKt|t||j|}t|}Yqw|durX|j|_|t||d|)Nrr)rr0rBrr@rrr) rrrr)rrr?rrSrrrrs*     zMatchFirst.parseImplcCrrrrrrr__ior__rzMatchFirst.__ior__cCr)Nr/r | csr3rrrrrrrrez%MatchFirst.__str__..rrrrrrrrzMatchFirst.__str__cCrrrrrrrrrzMatchFirst.checkRecursioncr)Ncsrrrrrrrrrz-MatchFirst._setResultsName..rrrr)r'rrrrrrrrrrrr9r r!rrrr rzMatchFirst._setResultsNamerr) rrrrrrrrrrr r rrrrr9{s   r9csHeZdZdZd fdd ZfddZd ddZd d Zd d ZZ S)r.asRequires all given :class:`ParseExpression` s to be found, but in any order. Expressions may be separated by whitespace. May be constructed using the ``'&'`` operator. Example:: color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN") shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON") integer = Word(nums) shape_attr = "shape:" + shape_type("shape") posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn") color_attr = "color:" + color("color") size_attr = "size:" + integer("size") # use Each (using operator '&') to accept attributes in any order # (shape and posn are required, color and size are optional) shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr) shape_spec.runTests(''' shape: SQUARE color: BLACK posn: 100, 120 shape: CIRCLE size: 50 color: BLUE posn: 50,80 color:GREEN size:20 shape:TRIANGLE posn:20,40 ''' ) prints:: shape: SQUARE color: BLACK posn: 100, 120 ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']] - color: BLACK - posn: ['100', ',', '120'] - x: 100 - y: 120 - shape: SQUARE shape: CIRCLE size: 50 color: BLUE posn: 50,80 ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']] - color: BLUE - posn: ['50', ',', '80'] - x: 50 - y: 80 - shape: CIRCLE - size: 50 color: GREEN size: 20 shape: TRIANGLE posn: 20,40 ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']] - color: GREEN - posn: ['20', ',', '40'] - x: 20 - y: 40 - shape: TRIANGLE - size: 20 Tcs>tt|||tdd|jD|_d|_d|_d|_dS)Ncsrrrrrrrr rz Each.__init__..T) rr.rr5rrr initExprGroupsr rrrrr s  z Each.__init__cs(tt|tdd|jD|_|S)Ncsrrrrrrrrrz"Each.streamline..)rr.rr5rrrrrrrszEach.streamlinec s|jrItdd|jD|_dd|jD}dd|jD}|||_dd|jD|_dd|jD|_dd|jD|_|j|j7_d |_|}|jdd}|jddg}d } | r||j|j} g} | D]8} z| ||}Wnt y| | Yqmw| |j t | | | |vr| | qm| vr | qmt| t| krd } | s_|rd d d|D} t ||d | |fdd|jD7}g}|D]} | |||\}}| |qt|tg}||fS)Ncss(|]}t|trt|j|fVqdSr)rr>rrrrrrrrz!Each.parseImpl..cSg|] }t|tr|jqSrrr>rrrrrrz"Each.parseImpl..cSs$g|]}|jrt|ttfs|qSr)rrr>rJrrrrrrcSrr)rrUrrrrrrrcSrr)rr<rrrrrrrcSs g|] }t|tttfs|qSr)rr>rUr<rrrrrs FTrcsr3rrrrrrr9rez*Missing one or more required elements (%s)cs$g|]}t|tr|jvr|qSrrrtmpOptrrr=r)rr;ropt1map optionalsmultioptionals multirequiredrequiredrXrBrrrremoverrr0sumrE)rrrr)opt1opt2tmpLoctmpReqd matchOrder keepMatchingtmpExprsfailedr?missingrr2 finalResultsrrrrsV     zEach.parseImplcCr)Nr/rz & csr3rrrrrrrLrezEach.__str__..rrrrrrrGrz Each.__str__cCrrrrrrrrPrzEach.checkRecursionr) rrrrrrrrrr rrrrr.s8  1 r.csjeZdZdZdfdd ZdddZdd Zfd d Zfd d ZddZ dddZ fddZ Z S)rAzfAbstract subclass of :class:`ParserElement`, for combining and post-processing parsed tokens. Fcstt||t|tr t|jtr||}n|t|}||_ d|_ |durM|j |_ |j |_ | |j|j|_|j|_|j|_|j|jdSdSr)rrArrr= issubclassrrOr7rr rrrr r r rrr}rrrrrrrZs     zParseElementEnhance.__init__TcCs.|jdur|jj|||ddStd||j|)NFrr)rr0rBrrFrrrrls zParseElementEnhance.parseImplcCs*d|_|j|_|jdur|j|Sr)r rrrrrrrrrs    z#ParseElementEnhance.leaveWhitespacecstt|tr"||jvr tt|||jdur |j|jd|Stt|||jdur8|j|jd|Sr^)rrNrrrArrrrrrryrzParseElementEnhance.ignorecs&tt||jdur|j|Sr)rrArrrrrrrs  zParseElementEnhance.streamlinecCsF||vr t||g|dd|g}|jdur!|j|dSdSr)rIrr)rrrrrrrs  z"ParseElementEnhance.checkRecursionNcCsB|durg}|dd|g}|jdur|j||gdSrrrrrrrrrrrs   zParseElementEnhance.validatecsVztt|WStyYnw|jdur(|jdur(d|jjt|jf|_|jSr) rrArrr rrrrrrrrrs zParseElementEnhance.__str__rrr) rrrrrrrrrrrrr rrrrrAVs    rAcr)r0abLookahead matching of the given parse expression. ``FollowedBy`` does *not* advance the parsing position within the input string, it only verifies that the specified parse expression matches at the current position. ``FollowedBy`` always returns a null token list. If any results names are defined in the lookahead expression, those *will* be returned for access by name. Example:: # use FollowedBy to match a label only if it is followed by a ':' data_word = Word(alphas) label = data_word + FollowedBy(':') attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)) OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint() prints:: [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']] ctt||d|_dSr)rr0rrrrrrrr zFollowedBy.__init__TcCs(|jj|||d\}}|dd=||fS)NrV)rr0)rrrr)_rrrrrs zFollowedBy.parseImplrrrrrrr0rr0cs,eZdZdZd fdd Zd ddZZS) r8apLookbehind matching of the given parse expression. ``PrecededBy`` does not advance the parsing position within the input string, it only verifies that the specified parse expression matches prior to the current position. ``PrecededBy`` always returns a null token list, but if a results name is defined on the given expression, it is returned. Parameters: - expr - expression that must match prior to the current parse location - retreat - (default= ``None``) - (int) maximum number of characters to lookbehind prior to the current parse location If the lookbehind expression is a string, Literal, Keyword, or a Word or CharsNotIn with a specified exact or maximum length, then the retreat parameter is not required. Otherwise, retreat must be specified to give a maximum number of characters to look back from the current parse position for a lookbehind match. Example:: # VB-style variable names with type prefixes int_var = PrecededBy("#") + pyparsing_common.identifier str_var = PrecededBy("$") + pyparsing_common.identifier Ncstt||||_d|_d|_d|_t|t r%t |}d|_n+t|t t fr3|j }d|_nt|ttfrF|jtkrF|j}d|_n t|trPd}d|_||_dt ||_d|_|jdddS)NTFrznot preceded by cSs|tddSr)rUrErrrrrz%PrecededBy.__init__..)rr8rrrrrrFrrrr7r4rrRr+r<rrretreatrr rr)rrrrrrrs*  zPrecededBy.__init__rTc Cs|jr!||jkrt|||j||j}|j||\}}||fS|jt}|td||j|}t|||j} tdt ||jddD])} z||t || \}}Wnt yk} z| } WYd} ~ qGd} ~ ww||fS| rJ) rFrrBrrr0rLrErKrDrr@) rrrr)r,rr test_exprinstring_slice last_exprrpberrrrs&   zPrecededBy.parseImplr)rTrrrrrr8sr8cs2eZdZdZfddZd ddZddZZS) r;aLookahead to disallow matching with the given parse expression. ``NotAny`` does *not* advance the parsing position within the input string, it only verifies that the specified parse expression does *not* match at the current position. Also, ``NotAny`` does *not* skip over leading whitespace. ``NotAny`` always returns a null token list. May be constructed using the '~' operator. Example:: AND, OR, NOT = map(CaselessKeyword, "AND OR NOT".split()) # take care not to mistake keywords for identifiers ident = ~(AND | OR | NOT) + Word(alphas) boolean_term = Optional(NOT) + ident # very crude boolean expression - to support parenthesis groups and # operation hierarchy, use infixNotation boolean_expr = boolean_term + ZeroOrMore((AND | OR) + boolean_term) # integers that are followed by "." are actually floats integer = Word(nums) + ~Char(".") cs0tt||d|_d|_dt|j|_dS)NFTzFound unwanted token, )rr;rr rrrrrrrrr*szNotAny.__init__TcCs&|j||rt|||j||gfSr)rrYrBrrFrrrr1szNotAny.parseImplcC4t|dr|jS|jdurdt|jd|_|jS)Nr/z~{rrar/r rrrrrrr6  zNotAny.__str__rrLrrrrr;s   r;cs>eZdZd fdd ZddZd ddZdfd d ZZS)_MultipleMatchNcs<tt||d|_|}t|tr||}||dSr)rrrr rr=rstopOn)rrrenderrrrr@s   z_MultipleMatch.__init__cCs2t|tr ||}|dur||_|Sd|_|Sr)rr=r not_ender)rrrrrrHs  z_MultipleMatch.stopOnTc Cs|jj}|j}|jdu}|r|jj}|r|||||||dd\}}z*|j } |r1|||| r9|||} n|} ||| |\}} | sI| rM|| 7}q*ttfy[Y||fSwNFr) rr0rArrXrrprBr@) rrrr)self_expr_parseself_skip_ignorables check_ender try_not_enderrRhasIgnoreExprsrP tmptokensrrrrNs0       z_MultipleMatch.parseImplFcsftjr*|jgt|jdgD]}t|tr)|jr)tjd d|t |j |jddqt t |||S)Nrrr rr)rr rrrrGr rrrrrrrr rrrrr ksz_MultipleMatch._setResultsNamerrr)rrrrrrr r rrrrr?s  rc@seZdZdZddZdS)r<ajRepetition of one or more of the given expression. Parameters: - expr - expression that must match one or more times - stopOn - (default= ``None``) - expression for a terminating sentinel (only required if the sentinel would ordinarily match the repetition expression) Example:: data_word = Word(alphas) label = data_word + FollowedBy(':') attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join)) text = "shape: SQUARE posn: upper left color: BLACK" OneOrMore(attr_expr).parseString(text).pprint() # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']] # use stopOn attribute for OneOrMore to avoid reading label string as part of the data attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)) OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']] # could also be written as (attr_expr * (1,)).parseString(text).pprint() cCr)Nr/rz}...rrrrrrrzOneOrMore.__str__N)rrrrrrrrrr<ys r<cs8eZdZdZd fdd Zd fdd Zdd ZZS) rUakOptional repetition of zero or more of the given expression. Parameters: - expr - expression that must match zero or more times - stopOn - (default= ``None``) - expression for a terminating sentinel (only required if the sentinel would ordinarily match the repetition expression) Example: similar to :class:`OneOrMore` Ncstt|j||dd|_dS)NrT)rrUrr)rrrrrrrs zZeroOrMore.__init__Tc s6z tt||||WSttfy|gfYSwr)rrUrrBr@rFrrrrs  zZeroOrMore.parseImplcCr)Nr/r]...rrrrrrrzZeroOrMore.__str__rrrLrrrrrUs  rUc@s eZdZddZeZddZdS) _NullTokencCrrrrrrrrZrJz_NullToken.__bool__cCrrrrrrrrrJz_NullToken.__str__N)rrrrZrrrrrrrs rcs<eZdZdZeZeffdd Zd ddZddZZ S) r>aGOptional matching of the given expression. Parameters: - expr - expression that must match zero or more times - default (optional) - value to be returned if the optional expression is not found. Example:: # US postal code can be a 5-digit zip, plus optional 4-digit qualifier zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4))) zip.runTests(''' # traditional ZIP code 12345 # ZIP+4 form 12101-0001 # invalid ZIP 98765- ''') prints:: # traditional ZIP code 12345 ['12345'] # ZIP+4 form 12101-0001 ['12101-0001'] # invalid ZIP 98765- ^ FAIL: Expected end of text (at char 5), (line:1, col:6) cs.tt|j|dd|jj|_||_d|_dS)NFrT)rr>rrr rwr)rrrqrrrrs  zOptional.__init__Tc Csz|jj|||dd\}}W||fSttfyH|j|jur7|jjr2t|jg}|j||jj<n|jg}ng}Y||fSY||fSY||fSwr)rr0rBr@rw_Optional__optionalNotMatchedr rE)rrrr)rRrrrrs     zOptional.parseImplcCr)Nr/rrrrrrrrrzOptional.__str__r) rrrrrrrrrr rrrrr>s $ r>cs,eZdZdZd fdd Zd ddZZS) rKa Token for skipping over all undefined text until the matched expression is found. Parameters: - expr - target expression marking the end of the data to be skipped - include - (default= ``False``) if True, the target expression is also parsed (the skipped text and target expression are returned as a 2-element list). - ignore - (default= ``None``) used to define grammars (typically quoted strings and comments) that might contain false matches to the target expression - failOn - (default= ``None``) define expressions that are not allowed to be included in the skipped test; if found before the target expression is found, the SkipTo is not a match Example:: report = ''' Outstanding Issues Report - 1 Jan 2000 # | Severity | Description | Days Open -----+----------+-------------------------------------------+----------- 101 | Critical | Intermittent system crash | 6 94 | Cosmetic | Spelling error on Login ('log|n') | 14 79 | Minor | System slow when running too many reports | 47 ''' integer = Word(nums) SEP = Suppress('|') # use SkipTo to simply match everything up until the next SEP # - ignore quoted strings, so that a '|' character inside a quoted string does not match # - parse action will call token.strip() for each matched token, i.e., the description body string_data = SkipTo(SEP, ignore=quotedString) string_data.setParseAction(tokenMap(str.strip)) ticket_expr = (integer("issue_num") + SEP + string_data("sev") + SEP + string_data("desc") + SEP + integer("days_open")) for tkt in ticket_expr.searchString(report): print tkt.dump() prints:: ['101', 'Critical', 'Intermittent system crash', '6'] - days_open: 6 - desc: Intermittent system crash - issue_num: 101 - sev: Critical ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14'] - days_open: 14 - desc: Spelling error on Login ('log|n') - issue_num: 94 - sev: Cosmetic ['79', 'Minor', 'System slow when running too many reports', '47'] - days_open: 47 - desc: System slow when running too many reports - issue_num: 79 - sev: Minor FNcs`tt||||_d|_d|_||_d|_t|t r#| ||_ n||_ dt |j |_dS)NTFzNo match found for )rrKr ignoreExprrr includeMatchr rr=rfailOnrrr)rrincluderrrrrr@s zSkipTo.__init__Tc Cs$|}t|}|j}|jj}|jdur|jjnd}|jdur!|jjnd} |} | |kri|dur3||| r3n>| durJ z| || } Wn tyHYnwq8z ||| dddWntt fyc| d7} Ynwn | |ks)t|||j || }|||} t | } |j r||||dd\}} | | 7} || fS)NrF)r)r*r) rrr0rrYrrXr@rBr@rrEr)rrrr)rrDr expr_parseself_failOn_canParseNextself_ignoreExpr_tryParsetmplocskiptext skipresultr1rrrrMsD    zSkipTo.parseImpl)FNNrrrrrrrKs9 rKcsneZdZdZdfdd ZddZddZd d Zd d Zdd dZ ddZ fddZ dfdd Z Z S)r1a_Forward declaration of an expression to be defined later - used for recursive grammars, such as algebraic infix notation. When the expression is known, it is assigned to the ``Forward`` variable using the '<<' operator. Note: take care when assigning to ``Forward`` not to overlook precedence of operators. Specifically, '|' has a lower precedence than '<<', so that:: fwdExpr << a | b | c will actually be evaluated as:: (fwdExpr << a) | b | c thereby leaving b and c out as parseable alternatives. It is recommended that you explicitly group the values inserted into the ``Forward``:: fwdExpr << (a | b | c) Converting to use the '<<=' operator instead will avoid this problem. See :class:`ParseResults.pprint` for an example of a recursive parser created using ``Forward``. Ncstt|j|dddSr )rr1rrrrrrrzForward.__init__cCsjt|tr ||}||_d|_|jj|_|jj|_||jj|jj |_ |jj |_ |j |jj |Sr) rr=rrr rrrr r r rr}rrrr __lshift__s      zForward.__lshift__cCs||>Srrrrrr __ilshift__rzForward.__ilshift__cCrrrrrrrrszForward.leaveWhitespacecCs$|jsd|_|jdur|j|Sr)rrrrrrrrs   zForward.streamlinecCsJ|durg}||vr|dd|g}|jdur|j||gdSrrrrrrrs  zForward.validatecCst|dr|jS|jdur|jSd|_d}z+|jdur%t|jdd}nd}W|jjd||_|jSW|jjd||_|jS|jjd||_w)Nr/z: ...riNonez: )rar/r rrrr)r retStringrrrrs   zForward.__str__cs*|jdur tt|St}||K}|Sr)rrr1rrrrrrs z Forward.copyFcs@tjr|jdurtjdd|t|jddtt | ||S)NzR{0}: setting results name {0!r} on {1} expression that has no contained expressionr!rr) rr!rrrrrrrr1r r!rrrr s zForward._setResultsNamerr)rrrrrr r rrrrrr r rrrrr1|s   r1cr&)rPzW Abstract subclass of :class:`ParseExpression`, for converting parsed results. Fcrr)rrPrr rrrrrrzTokenConverter.__init__rrrrrrrPsrPcs6eZdZdZd fdd ZfddZdd ZZS) r,aConverter to concatenate all matching tokens to a single string. By default, the matching patterns must also be contiguous in the input string; this can be disabled by specifying ``'adjacent=False'`` in the constructor. Example:: real = Word(nums) + '.' + Word(nums) print(real.parseString('3.1416')) # -> ['3', '.', '1416'] # will also erroneously match the following print(real.parseString('3. 1416')) # -> ['3', '.', '1416'] real = Combine(Word(nums) + '.' + Word(nums)) print(real.parseString('3.1416')) # -> ['3.1416'] # no match when there are internal spaces print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...) rTcs8tt|||r|||_d|_||_d|_dSr)rr,rradjacentr  joinStringr)rrrrrrrrs zCombine.__init__cs*|jr t|||Stt|||Sr)rrGrrr,rrrrr s  zCombine.ignorecCsL|}|dd=|td||jg|jd7}|jr$|r$|gS|S)Nr)r1)rrErrrrr rp)rrrrHretToksrrrrIs  "zCombine.postParse)rT)rrrrrrrIr rrrrr,s  r,c(eZdZdZfddZddZZS)r3aConverter to return the matched tokens as a list - useful for returning tokens of :class:`ZeroOrMore` and :class:`OneOrMore` expressions. Example:: ident = Word(alphas) num = Word(nums) term = ident | num func = ident + Optional(delimitedList(term)) print(func.parseString("fn a, b, 100")) # -> ['fn', 'a', 'b', '100'] func = ident + Group(Optional(delimitedList(term))) print(func.parseString("fn a, b, 100")) # -> ['fn', ['a', 'b', '100']] crr)rr3rr rrrrr*rzGroup.__init__cCs|gSrrrGrrrrI.rzGroup.postParserrrrrrIr rrrrr3s r3cr)r-a?Converter to return a repetitive expression as a list, but also as a dictionary. Each element can also be referenced using the first token in the expression as its key. Useful for tabular report scraping when the first column can be used as a item key. Example:: data_word = Word(alphas) label = data_word + FollowedBy(':') attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join)) text = "shape: SQUARE posn: upper left color: light blue texture: burlap" attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)) # print attributes as plain groups print(OneOrMore(attr_expr).parseString(text).dump()) # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names result = Dict(OneOrMore(Group(attr_expr))).parseString(text) print(result.dump()) # access named fields as dict entries, or output as dict print(result['shape']) print(result.asDict()) prints:: ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap'] [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']] - color: light blue - posn: upper left - shape: SQUARE - texture: burlap SQUARE {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'} See more examples at :class:`ParseResults` of accessing fields by results name. crr)rr-rr rrrrrXrz Dict.__init__cCst|D]h\}}t|dkrq|d}t|tr t|d}t|dkr.td|||<qt|dkrEt|dtsEt|d|||<q|}|d=t|dks[t|trc| rct||||<qt|d|||<q|j rs|gS|S)Nrrrr) rrrrrrr rErrpr )rrrrHrtokikey dictvaluerrrrI\s$   zDict.postParserrrrrr-1s &r-c@r)rNa[Converter for ignoring the results of a parsed expression. Example:: source = "a, b, c,d" wd = Word(alphas) wd_list1 = wd + ZeroOrMore(',' + wd) print(wd_list1.parseString(source)) # often, delimiters that are useful during parsing are just in the # way afterward - use Suppress to keep them out of the parsed output wd_list2 = wd + ZeroOrMore(Suppress(',') + wd) print(wd_list2.parseString(source)) prints:: ['a', ',', 'b', ',', 'c', ',', 'd'] ['a', 'b', 'c', 'd'] (See also :class:`delimitedList`.) cCsgSrrrGrrrrIrJzSuppress.postParsecCs|SrrrrrrrrJzSuppress.suppressN)rrrrrIrrrrrrNus rNc@s(eZdZdZddZddZddZdS) r=zDWrapper for parse actions, to ensure they are only called once. cCst||_d|_dSr)rr4called)r methodCallrrrrs  zOnlyOnce.__init__cCs*|js||||}d|_|St||d)NTr)rr4rB)rrrrr2rrrrs  zOnlyOnce.__call__cCs d|_dSr)rrrrrresetrzOnlyOnce.resetN)rrrrrrrrrrrr=s  r=cs8tfdd}zj|_W|StyY|Sw)aqDecorator for debugging parse actions. When the parse action is called, this decorator will print ``">> entering method-name(line:, , )"``. When the parse action completes, the decorator will print ``"<<"`` followed by the returned value, or any exception that the parse action raised. Example:: wd = Word(alphas) @traceParseAction def remove_duplicate_chars(tokens): return ''.join(sorted(set(''.join(tokens)))) wds = OneOrMore(wd).setParseAction(remove_duplicate_chars) print(wds.parseString("slkdjs sld sldd sdlf sdljf")) prints:: >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {})) <>entering %s(line: '%s', %d, %r) z<.z)rrr)rrrrrrs   r,cCs\t|dt|dt|d}|r!t|t|||S|tt|||S)aHelper to define a delimited list of expressions - the delimiter defaults to ','. By default, the list elements and delimiters can have intervening whitespace, and comments, but this can be overridden by passing ``combine=True`` in the constructor. If ``combine`` is set to ``True``, the matching tokens are returned as a single token string, with the delimiters included; otherwise, the matching tokens are returned as a list of tokens, with the delimiters suppressed. Example:: delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc'] delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE'] z [rr)rr,rUrrN)rdelimcombinedlNamerrrrds$rdcsjtfdd}|durttdd}n|}|d|j|dd|d td S) a>Helper to define a counted list of expressions. This helper defines a pattern of the form:: integer expr expr expr... where the leading integer tells how many expr expressions follow. The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed. If ``intExpr`` is specified, it should be a pyparsing expression that produces an integer value. Example:: countedArray(Word(alphas)).parseString('2 ab cd ef') # -> ['ab', 'cd'] # in this parser, the leading integer value is given in binary, # '10' indicating that 2 values are in the array binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2)) countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef') # -> ['ab', 'cd'] cs.|d}|rttg|ptt>gSr()r3r(rg)rrrr arrayExprrrrcountFieldParseActions"z+countedArray..countFieldParseActionNcSs t|dSr()rrrrrrrzcountedArray..arrayLenTrz(len) r)r1rRrvrrrr9r)rintExprr&rr$rr`s r`cCs6g}|D]}t|tr|t|q||q|Sr)rr8r}rr)Lrrrrrr s   rcs6tfdd}|j|dddt|S)a4Helper to define an expression that is indirectly defined from the tokens matched in a previous expression, that is, it looks for a 'repeat' of a previous expression. For example:: first = Word(nums) second = matchPreviousLiteral(first) matchExpr = first + ":" + second will match ``"1:1"``, but not ``"1:2"``. Because this matches a previous literal, will also match the leading ``"1:1"`` in ``"1:10"``. If this is not desired, use :class:`matchPreviousExpr`. Do *not* use with packrat parsing enabled. csT|r#t|dkr|d>dSt|}tdd|D>dSt>dS)Nrrcsr3r)r7rttrrrr*rezDmatchPreviousLiteral..copyTokenToRepeater..)rrr0r(r/)rrrtflatreprrcopyTokenToRepeater#s   z1matchPreviousLiteral..copyTokenToRepeaterTr((prev) )r1r9rr)rr0rr.rrss   rscsFt|}|Kfdd}|j|dddt|S)aTHelper to define an expression that is indirectly defined from the tokens matched in a previous expression, that is, it looks for a 'repeat' of a previous expression. For example:: first = Word(nums) second = matchPreviousExpr(first) matchExpr = first + ":" + second will match ``"1:1"``, but not ``"1:2"``. Because this matches by expressions, will *not* match the leading ``"1:1"`` in ``"1:10"``; the expressions are evaluated first, and then compared, so ``"1"`` is compared with ``"10"``. Do *not* use with packrat parsing enabled. cs*t|fdd}j|dddS)Ncs$t|}|krtddddS)Nrr)rr0rB)rrr theseTokens matchTokensrrmustMatchTheseTokensEs  zLmatchPreviousExpr..copyTokenToRepeater..mustMatchTheseTokensTr()rr0r)rrrr5r.r3rr0Cs  z.matchPreviousExpr..copyTokenToRepeaterTr(r1)r1rr9rr)re2r0rr.rrr1s rrcCs:dD] }||t|}q|dd}|dd}t|S)Nz\^-[]rrrqrt)r_bslashr)rrrrrr>Ns   r>c st|tr tjddd|rdd}dd}|rtntndd}dd}|r)tntg}t|tr7|}nt|t rAt |}ntjd t dd|sNt S|sd }|t |d kr||}t||d d D]&\} } || |rz||| d =n||| r||| d =||| nqh|d 7}|t |d ksZ|s|s|rz3t |t d |krtdd dd|Dd|WStddd|Dd|WStytjdt ddYnwtfdd|Dd|S)aHelper to quickly define a set of alternative Literals, and makes sure to do longest-first testing when there is a conflict, regardless of the input order, but returns a :class:`MatchFirst` for best performance. Parameters: - strs - a string of space-delimited literals, or a collection of string literals - caseless - (default= ``False``) - treat all literals as caseless - useRegex - (default= ``True``) - as an optimization, will generate a Regex object; otherwise, will generate a :class:`MatchFirst` object (if ``caseless=True`` or ``asKeyword=True``, or if creating a :class:`Regex` raises an exception) - asKeyword - (default=``False``) - enforce Keyword-style matching on the generated expressions 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']] z_More than one string argument passed to oneOf, pass choices as a list or space-delimited stringrrcSs||kSr)r!rbrrrr{rzoneOf..cSs||Sr)r!rr8rrrr|scSrrrr8rrrrrcSs ||Srrr8rrrrs z6Invalid argument to oneOf, expected string or iterablerrNrrOcsr3r)r>rsymrrrrrezoneOf..r|css|]}t|VqdSr)rr@r:rrrrrz7Exception creating Regex for oneOf, building MatchFirstc3|]}|VqdSrrr:parseElementClassrrrre)rr=rrr)r*r4r7rr r8rr:rrrxrrJrrr9) strsr useRegexr=isequalmaskssymbolsrcurrRrrr>rrwVs^          *&  "rwcCsttt||S)aHelper to easily and clearly define a dictionary by specifying the respective patterns for the key and value. Takes care of defining the :class:`Dict`, :class:`ZeroOrMore`, and :class:`Group` tokens in the proper order. The key pattern can include delimiting markers or punctuation, as long as they are suppressed, thereby leaving the significant key text. The value pattern can include named results, so that the :class:`Dict` results can include named token fields. Example:: text = "shape: SQUARE posn: upper left color: light blue texture: burlap" attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)) print(OneOrMore(attr_expr).parseString(text).dump()) attr_label = label attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join) # similar to Dict, but simpler call format result = dictOf(attr_label, attr_value).parseString(text) print(result.dump()) print(result['shape']) print(result.shape) # object attribute access works too print(result.asDict()) prints:: [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']] - color: light blue - posn: upper left - shape: SQUARE - texture: burlap SQUARE SQUARE {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'} )r-r<r3)rvrSrrrres%recCs^tdd}|}d|_|d||d}|r dd}ndd}|||j|_|S) aHelper to return the original, untokenized text for a given expression. Useful to restore the parsed fields of an HTML start tag into the raw tag text itself, or to revert separate tokens with intervening whitespace back to the original matching input text. By default, returns astring containing the original parsed text. If the optional ``asString`` argument is passed as ``False``, then the return value is a :class:`ParseResults` containing any results names that were originally matched, and a single token containing the original matched text from the input string. So if the expression passed to :class:`originalTextFor` contains expressions with defined results names, you must set ``asString`` to ``False`` if you want to preserve those results name values. Example:: src = "this is test bold text normal text " for tag in ("b", "i"): opener, closer = makeHTMLTags(tag) patt = originalTextFor(opener + SkipTo(closer) + closer) print(patt.searchString(src)[0]) prints:: [' bold text '] ['text'] cS|Srr)rrrrrrrz!originalTextFor..F_original_start _original_endcSs||j|jSr)rHrIrrrrrrcSs&||d|dg|dd<dS)NrHrI)rurrrr extractTexts&z$originalTextFor..extractText)r/rrrr)rasString locMarker endlocMarker matchExprrJrrrrs  rcCst|ddS)zkHelper to undo pyparsing's default grouping of And expressions, even if all but one are non-empty. cSs|dSr(rrrrrrrzungroup..)rPr9)rrrrrsrcCs4tdd}t|d|d|dS)aHelper 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 ```` characters, you may want to call :class:`ParserElement.parseWithTabs` Example:: wd = Word(alphas) for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"): print(match) prints:: [[0, 'ljsdf', 5]] [[8, 'lksdjjf', 15]] [[18, 'lkkjj', 23]] cSrFrrrrrrrrGzlocatedExpr.. locn_startrSlocn_end)r/rr3rr)rlocatorrrrrs$rrgrmrlrrz\[]-*.$+^?()~ rFcCs |ddSrJrrrrrr(rrz\\0?[xX][0-9a-fA-F]+cCstt|dddS)Nrz\0xr)unichrrrrrrrr)rz \\0[0-7]+cCstt|ddddS)Nrr)rSrrrrrr*sz\]rrrnegatebodyrcs@ddzdfddt|jDWStyYdSw)aHelper to easily define string ranges for use in Word construction. Borrows syntax from regexp '[]' string range definitions:: srange("[0-9]") -> "0123456789" srange("[a-z]") -> "abcdefghijklmnopqrstuvwxyz" srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_" The input string must be enclosed in []'s, and the returned string is the expanded character set joined into a single string. The values enclosed in the []'s may be: - a single character - an escaped character with a leading backslash (such as ``\-`` or ``\]``) - an escaped hex character with a leading ``'\x'`` (``\x21``, which is a ``'!'`` character) (``\0x##`` is also supported for backwards compatibility) - an escaped octal character with a leading ``'\0'`` (``\041``, which is a ``'!'`` character) - a range of any of the above, separated by a dash (``'a-z'``, etc.) - any combination of the above (``'aeiouy'``, ``'a-zA-Z0-9_$'``, etc.) cSs<t|ts|Sdddtt|dt|ddDS)Nrcsr3rrSrrrrrIrez+srange....rr)rrErrKord)prrrrIs<zsrange..rc3r=rr)rpart _expandedrrrKrezsrange..)r_reBracketExprrrVrrJrr[rr/s " rcfdd}|S)zoHelper method for defining parse actions that require matching at a specific column in the input text. cs"t||krt||ddS)Nzmatched token not at column %dr)rlocnrrrr verifyColSsz!matchOnlyAtCol..verifyColr)rr`rrrrqOs rqcs fddS)aHelper method for common parse actions that simply return a literal value. Especially useful when used with :class:`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] csgSrrrreplStrrrrezreplaceWith..rrarrarrXs rcCs|dddS)aHelper parse action for removing quotation marks from parsed quoted strings. Example:: # by default, quotation marks are included in parsed results quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"] # use removeQuotes to strip quotation marks from parsed results quotedString.setParseAction(removeQuotes) quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"] rrrrrrrrr~gr{r~csLfdd}z tdtdj}Wn ty t}Ynw||_|S)aLHelper to define a parse action by mapping a function to all elements of a ParseResults list. If any additional args are passed, they are forwarded to the given function as additional arguments after the token, as in ``hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))``, which will convert the parsed data to an integer using base 16. Example (compare the last to example in :class:`ParserElement.transformString`:: hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16)) hex_ints.runTests(''' 00 11 22 aa FF 0a 0d 1a ''') upperword = Word(alphas).setParseAction(tokenMap(str.upper)) OneOrMore(upperword).runTests(''' my kingdom for a horse ''') wd = Word(alphas).setParseAction(tokenMap(str.title)) OneOrMore(wd).setParseAction(' '.join).runTests(''' now is the winter of our discontent made glorious summer by this sun of york ''') prints:: 00 11 22 aa FF 0a 0d 1a [0, 17, 34, 170, 255, 10, 13, 26] my kingdom for a horse ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE'] now is the winter of our discontent made glorious summer by this sun of york ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York'] csfdd|DS)Ncsg|] }|gRqSrr)rtoknrrrrrrz(tokenMap..pa..rrrerrrrztokenMap..parr)rrrr)rrrrrrerrvs$   rcC t|Srrr!rrrrrrcCrfrrlowerrrrrrrrrcs~t|tr|t|| d}n|jtttd}|rGt t }||dt t t |td|tddgdd d d |}n6t t ttd d B}||dt t t | tttd|tddgdd d d |}ttd|d dd}|d|fdd |ddddd}|_|_t||_||fS)zRInternal helper to construct opening and closing tag expressions, given a tag namer'z_-:tag=/FrqrgcS |ddkSNrrlrrrrrrrz_makeTags..rr4cSrnrorrrrrrrr)rz<%s>c s*|dddd|S)Nr,r:r)rIrrtitlerrrresnamerrrs*rMrrprz)rr=r4r/rRrXrWrbrrr~r-rUr3rNr>r}rzrfr,_Lrr9rrrqrrjrKtag_body)tagStrxml suppress_LT suppress_GT tagAttrName tagAttrValueopenTagcloseTagrrrr _makeTagssH , r~cC t|dS)aKHelper 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 = 'More info at the pyparsing wiki page' # 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 tag (like "href" shown here) are # also accessible as named results print(link.link_text, '->', link.href) prints:: pyparsing -> https://github.com/pyparsing/pyparsing/wiki Fr~rvrrrros rocCr)zHelper to construct opening and closing tag expressions for XML, given a tag name. Matches tags only in the given upper/lower case. Example: similar to :class:`makeHTMLTags` Trrrrrrps rpcs8|r |ddn|ddDfdd}|S)a7Helper to create a validating parse action to be used with start tags created with :class:`makeXMLTags` or :class:`makeHTMLTags`. Use ``withAttribute`` to qualify a starting tag with a required attribute value, to avoid false matches on common tags such as ```` or ``
``. Call ``withAttribute`` with a series of attribute names and values. Specify the list of filter attributes names and values as: - keyword arguments, as in ``(align="right")``, or - as an explicit dict with ``**`` operator, when an attribute name is also a Python reserved word, as in ``**{"class":"Customer", "align":"right"}`` - a list of name-value tuples, as in ``(("ns1:class", "Customer"), ("ns2:align", "right"))`` For attribute names with a namespace prefix, you must use the second form. Attribute names are matched insensitive to upper/lower case. If just testing for ``class`` (with or without a namespace), use :class:`withClass`. To verify that the attribute exists, but without specifying a value, pass ``withAttribute.ANY_VALUE`` as the value. Example:: html = '''
Some text
1 4 0 1 0
1,3 2,3 1,1
this has no type
''' 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|]\}}||fqSrrrrrrr/rz!withAttribute..csZD](\}}||vrt||d||tjkr*|||kr*t||d||||fqdS)Nzno matching attribute z+attribute '%s' has value '%s', must be '%s')rBr ANY_VALUE)rrrRattrName attrValueattrsrrr0s  zwithAttribute..pa)rN)rattrDictrrrrrs 8 rcCs"|rd|nd}tdi||iS)aSimplified version of :class:`withAttribute` when matching on a div class - made difficult because ``class`` is a reserved word in Python. Example:: html = '''
Some text
1 4 0 1 0
1,3 2,3 1,1
this <div> has no class
''' 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:classclassNr)r) classname namespace classattrrrrr:s#r(rdcCsGdddt}t}||||B}t|D]0\}}|ddd\} } } } | dkr0d| nd| } | dkrJ| dusBt| d krFtd | \}}t| }| tjkr| d krh||| t|t | }n| d kr| dur||| |t|t | |}n|||t|t |}n| dkr||||||t|t ||||}nvtd | tj kr#| d krt | t st | } || j |t| |}nQ| d kr| dur||| |t|t | |}n5|||t|t |}n&| dkr||||||t|||||}ntd td | r=t | ttfr8|j| n|| ||| |BK}|}q||K}|S)al Helper method for constructing grammars of expressions made up of operators working in a precedence hierarchy. Operators may be unary or binary, left- or right-associative. Parse actions can also be attached to operator expressions. The generated parser will also recognize the use of parentheses to override operator precedences (see example below). Note: if you define a deep operator list, you may see performance issues when using infixNotation. See :class:`ParserElement.enablePackrat` for a mechanism to potentially improve your parser performance. Parameters: - baseExpr - expression representing the most basic element for the nested - opList - list of tuples, one for each operator precedence level in the expression grammar; each tuple is of the form ``(opExpr, numTerms, rightLeftAssoc, parseAction)``, where: - opExpr is the pyparsing expression for the operator; may also be a string, which will be converted to a Literal; if numTerms is 3, opExpr is a tuple of two expressions, for the two operators separating the 3 terms - numTerms is the number of terms for this operator (must be 1, 2, or 3) - rightLeftAssoc is the indicator whether the operator is right or left associative, using the pyparsing-defined constants ``opAssoc.RIGHT`` and ``opAssoc.LEFT``. - parseAction is the parse action to be associated with expressions matching this operator expression (the parse action tuple member may be omitted); if the parse action is passed a tuple or list of functions, this is equivalent to calling ``setParseAction(*fn)`` (:class:`ParserElement.setParseAction`) - lpar - expression for matching left-parentheses (default= ``Suppress('(')``) - rpar - expression for matching right-parentheses (default= ``Suppress(')')``) Example:: # simple example of four-function arithmetic with ints and # variable names integer = pyparsing_common.signed_integer varname = pyparsing_common.identifier arith_expr = infixNotation(integer | varname, [ ('-', 1, opAssoc.RIGHT), (oneOf('* /'), 2, opAssoc.LEFT), (oneOf('+ -'), 2, opAssoc.LEFT), ]) arith_expr.runTests(''' 5+3*6 (5+3)*6 -2--11 ''', fullDump=False) prints:: 5+3*6 [[5, '+', [3, '*', 6]]] (5+3)*6 [[[5, '+', 3], '*', 6]] -2--11 [[['-', 2], '-', ['-', 11]]] c@r)zinfixNotation.._FBTcSs|j|||gfSr)rrXrFrrrrsz$infixNotation.._FB.parseImplNrrrrrr_FBrrrNrIrz%s termz %s%s termrz@if numterms=3, opExpr must be a tuple or list of two expressionsrz6operator must be unary (1), binary (2), or ternary (3)z2operator must indicate right or left associativity)r0r1rrrrrxLEFTr3r<RIGHTrr>rrr8r)baseExpropListlparrparrrlastExprroperDefopExprarityrightLeftAssocrtermNameopExpr1opExpr2thisExprrNrrrrds`H  &   &   rz4"(?:[^"\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 quotesuzunicode string literalcCs||krtd|durt|trt|trt|dkrQt|dkrQ|dur>tt|t||tjdd dd}nTt t||tj dd}nA|durstt|t |t |ttjdd dd}nttt |t |ttjdd d d}ntd t }|dur|tt|t||B|Bt|K}n|tt|t||Bt|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= ``"("``); can also be a pyparsing expression - closer - closing character for a nested list (default= ``")"``); can also be a pyparsing expression - content - expression for items within the nested lists (default= ``None``) - ignoreExpr - expression for ignoring opening and closing delimiters (default= :class:`quotedString`) If an expression is not provided for the content argument, the nested expression will capture all whitespace-delimited content between delimiters as a list of separate values. Use the ``ignoreExpr`` argument to define expressions that may contain opening or closing characters that should not be treated as opening or closing characters for nesting, such as quotedString or a comment expression. Specify multiple expressions using an :class:`Or` or :class:`MatchFirst`. The default is :class:`quotedString`, but if no expressions are to be ignored, then pass ``None`` for this argument. Example:: data_type = oneOf("void int short long char float double") decl_data_type = Combine(data_type + Optional(Word('*'))) ident = Word(alphas+'_', alphanums+'_') number = pyparsing_common.number arg = Group(decl_data_type + ident) LPAR, RPAR = map(Suppress, "()") code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment)) c_function = (decl_data_type("type") + ident("name") + LPAR + Optional(delimitedList(arg), [])("args") + RPAR + code_body("body")) c_function.ignore(cStyleComment) source_code = ''' int is_odd(int x) { return (x%2); } int dec_to_hex(char hchar) { if (hchar >= '0' && hchar <= '9') { return (ord(hchar)-ord('0')); } else { return (10+ord(hchar)-ord('A')); } } ''' for func in c_function.searchString(source_code): print("%(name)s (%(type)s) args: %(args)s" % func) prints:: is_odd (int) args: [['int', 'x']] dec_to_hex (int) args: [['char', 'hchar']] z.opening and closing strings cannot be the sameNrrRcS |dSr(rrrrrr;rznestedExpr..cSrr(rrrrrr@rcSrr(rrrrrrGrcSrr(rrrrrrLrzOopening and closing arguments must be strings if no content expression is givenznested %s%s expression)rrr=rr,r<r+rGrrrgrr7r1r3rNrUr)openerclosercontentrrrrrrts`A        *$rtc s&ddfddfdd}fdd}fdd }ttd td }tt|d }t|d }t|d} |rftt ||t|t|t |td | } ntt |t|t|t |td | } | fdd| t t| dS)aHelper 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 current level; set to False for block of left-most statements (default= ``True``) A valid block must contain at least one ``blockStatement``. Example:: data = ''' def A(z): A1 B = 100 G = A2 A2 A3 B def BB(a,b,c): BB1 def BBA(): bba1 bba2 bba3 C D def spam(x,y): def eggs(z): pass ''' indentStack = [1] stmt = Forward() identifier = Word(alphas, alphanums) funcDecl = ("def" + identifier + Group("(" + Optional(delimitedList(identifier)) + ")") + ":") func_body = indentedBlock(stmt, indentStack) funcDef = Group(funcDecl + func_body) rvalue = Forward() funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")") rvalue << (funcCall | identifier | Word(nums)) assignment = Group(identifier + "=" + rvalue) stmt << (funcDef | assignment | identifier) module_body = OneOrMore(stmt) parseTree = module_body.parseString(data) parseTree.pprint() prints:: [['def', 'A', ['(', 'z', ')'], ':', [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]], 'B', ['def', 'BB', ['(', 'a', 'b', 'c', ')'], ':', [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]], 'C', 'D', ['def', 'spam', ['(', 'x', 'y', ')'], ':', [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]] Ncsdd<dSrrr) backup_stack indentStackrr reset_stackrz"indentedBlock..reset_stackcsN|t|krdSt||}|dkr%|dkrt||dt||ddS)Nrzillegal nestingznot a peer entry)rr]rBrrrcurColrrrcheckPeerIndents     z&indentedBlock..checkPeerIndentcs0t||}|dkr|dSt||d)Nrznot a subentry)r]rrBrrrrcheckSubIndents   z%indentedBlock..checkSubIndentcsN|t|krdSt||}r|vst||d|dkr%dSdS)Nznot an unindentr)rr]rBrurrrr checkUnindents     z$indentedBlock..checkUnindentz rINDENTrUNINDENTcsSrr)rr9rr[)rrrrrczindentedBlock..zindented block) r<r5rrrLr/rrr3r>r<rr7) blockStatementExprrrrrrrrPEERUNDENTsmExprr)rrrrrWs2 Q    rz#[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]z[\0xa1-\0xbf\0xd7\0xf7]z_:zany tagzgt lt amp nbsp quot aposz><& "'z &(?Pr<z);zcommon HTML entitycCs t|jS)zRHelper parser action to replace common HTML entities with their special characters)_htmlEntityMaprentityrrrrrrlrz/\*(?:[^*]|\*(?!/))*z*/zC style commentzz HTML commentz.*z rest of linez//(?:\\\n|[^\n])*z // commentzC++ style commentz#.*zPython style commentr4 commaItemrmr^c@seZdZdZeeZ eeZ e e  d eZ e e d eedZ ed d eZ e ede e dZ ed d eeeed eB d Z eeed  d eZ ed d eZ eeBeBZ ed d eZ e eded dZ ed dZ ed dZ!e!de!d dZ"ee!de!ddee!de!d dZ#e#$dd d e  d!Z%e&e"e%Be#B d" d"Z' ed# d$Z( e)d=d&d'Z*e)d>d)d*Z+ed+ d,Z, ed- d.Z- ed/ d0Z. e/e0BZ1e)d1d2Z2e&e3e4d3e5e e6d3d4ee7d5 d6Z8e9ee:;e8Bd7d8 d9Z< e)ed:d Z= e)ed;d Z>d`, :class:`reals`, :class:`scientific notation`) - common :class:`programming identifiers` - network addresses (:class:`MAC`, :class:`IPv4`, :class:`IPv6`) - ISO8601 :class:`dates` and :class:`datetime` - :class:`UUID` - :class:`comma-separated list` Parse actions: - :class:`convertToInteger` - :class:`convertToFloat` - :class:`convertToDate` - :class:`convertToDatetime` - :class:`stripHTMLTags` - :class:`upcaseTokens` - :class:`downcaseTokens` Example:: pyparsing_common.number.runTests(''' # any int or real number, returned as the appropriate type 100 -100 +100 3.14159 6.02e23 1e-12 ''') pyparsing_common.fnumber.runTests(''' # any int or real number, returned as float 100 -100 +100 3.14159 6.02e23 1e-12 ''') pyparsing_common.hex_integer.runTests(''' # hex numbers 100 FF ''') pyparsing_common.fraction.runTests(''' # fractions 1/2 -3/4 ''') pyparsing_common.mixed_integer.runTests(''' # mixed fractions 1 1/2 -3/4 1-3/4 ''') import uuid pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID)) pyparsing_common.uuid.runTests(''' # uuid 12345678-1234-5678-1234-567812345678 ''') prints:: # any int or real number, returned as the appropriate type 100 [100] -100 [-100] +100 [100] 3.14159 [3.14159] 6.02e23 [6.02e+23] 1e-12 [1e-12] # any int or real number, returned as float 100 [100.0] -100 [-100.0] +100 [100.0] 3.14159 [3.14159] 6.02e23 [6.02e+23] 1e-12 [1e-12] # hex numbers 100 [256] FF [255] # fractions 1/2 [0.5] -3/4 [-0.75] # mixed fractions 1 [1] 1/2 [0.5] -3/4 [-0.75] 1-3/4 [1.75] # uuid 12345678-1234-5678-1234-567812345678 [UUID('12345678-1234-5678-1234-567812345678')] integerz hex integerrz[+-]?\d+zsigned integerrlfractioncCs|d|dS)Nrrrrrrrrrzpyparsing_common.rz"fraction or mixed integer-fractionz[+-]?(?:\d+\.\d*|\.\d+)z real numberz@[+-]?(?:\d+(?:[eE][+-]?\d+)|(?:\d+\.\d*|\.\d+)(?:[eE][+-]?\d+)?)z$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_integerrpzfull IPv6 address)rrz::zshort IPv6 addresscCstdd|DdkS)Ncss |] }tj|rdVqdSr)r _ipv6_partrr+rrrrrz,pyparsing_common...rT)rrrrrrrz::ffff:zmixed IPv6 addressz IPv6 addressz:[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}z MAC address%Y-%m-%dcr^)a Helper to create a parse action for converting parsed date string to Python datetime.date Params - - fmt - format to be passed to datetime.strptime (default= ``"%Y-%m-%d"``) Example:: date_expr = pyparsing_common.iso8601_date.copy() date_expr.setParseAction(pyparsing_common.convertToDate()) print(date_expr.parseString("1999-12-31")) prints:: [datetime.date(1999, 12, 31)] c s@z t|dWSty}zt||t|d}~wwr()rstrptimedaterrBrrrrvefmtrrcvt_fns z.pyparsing_common.convertToDate..cvt_fnrrrrrr convertToDate zpyparsing_common.convertToDate%Y-%m-%dT%H:%M:%S.%fcr^)aHelper to create a parse action for converting parsed datetime string to Python datetime.datetime Params - - fmt - format to be passed to datetime.strptime (default= ``"%Y-%m-%dT%H:%M:%S.%f"``) Example:: dt_expr = pyparsing_common.iso8601_datetime.copy() dt_expr.setParseAction(pyparsing_common.convertToDatetime()) print(dt_expr.parseString("1999-12-31T23:59:59.999")) prints:: [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)] c s<z t|dWSty}zt||t|d}~wwr()rrrrBrrrrrrs z2pyparsing_common.convertToDatetime..cvt_fnrrrrrconvertToDatetimerz"pyparsing_common.convertToDatetimez7(?P\d{4})(?:-(?P\d\d)(?:-(?P\d\d))?)?z ISO8601 datez(?P\d{4})-(?P\d\d)-(?P\d\d)[T ](?P\d\d):(?P\d\d)(:(?P\d\d(\.\d*)?)?)?(?PZ|[+-]\d\d:?\d\d)?zISO8601 datetimez2[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}UUIDcCstj|dS)aParse action to remove HTML tags from web page HTML source Example:: # strip HTML links from normal text text = 'More info at the pyparsing wiki page' td, td_end = makeHTMLTags("TD") table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end print(table_text.parseString(text).body) Prints:: More info at the pyparsing wiki page r)r_html_stripperr)rrrRrrr stripHTMLTagsszpyparsing_common.stripHTMLTagsr r4rrrrmzcomma separated listcCrfrrgrrrrr#rcCrfrrhrrrrr&rN)r)r)?rrrrrrconvertToIntegerfloatconvertToFloatrRrvrrrrhrrJsigned_integerrr9r>r mixed_integerrrealsci_realrnumberrrXrWr ipv4_addressr_full_ipv6_address_short_ipv6_addressr:_mixed_ipv6_addressr, ipv6_address mac_addressrrr iso8601_dateiso8601_datetimeuuidr[rZrrr<r7r5rzrQ _commasepitemrdr}rcomma_separated_listrrfrrrrrs""         rc@seZdZddZddZdS)_lazyclasspropertycCs||_|j|_|j|_dSr)rrrr;rrrr+s z_lazyclassproperty.__init__csldurt|tdrtfddjddDr i_|jj}|jvr1|j|<j|S)N_internc3s"|] }jt|dguVqdS)rN)rr)r superclassrrrr3sz-_lazyclassproperty.__get__..r)rrar__mro__rrr)rrrattrnamerrr__get__0s   z_lazyclassproperty.__get__N)rrrrrrrrrr*s rc@sPeZdZdZgZeddZeddZeddZ edd Z ed d Z d S) ra A set of Unicode characters, for language-specific strings for ``alphas``, ``nums``, ``alphanums``, and ``printables``. A unicode_set is defined by a list of ranges in the Unicode character set, in a class attribute ``_ranges``, such as:: _ranges = [(0x0020, 0x007e), (0x00a0, 0x00ff),] A unicode set can also be defined using multiple inheritance of other unicode sets:: class CJK(Chinese, Japanese, Korean): pass cCsZg}|jD]}|tur n|jD]}|t|d|ddqqddtt|DS)NrrrcSsg|]}t|qSrrWrrrrrTrDz5unicode_set._get_chars_for_ranges..)rr_rangesr}rKrr)rrccrrrrr_get_chars_for_rangesLs  z!unicode_set._get_chars_for_rangescCdttj|S)z+all non-whitespace characters in this ranger)rrrrrrrrrrzVzunicode_set.printablescCr)z'all alphabetic characters in this ranger)rfilterrisalpharrrrrrX[rzunicode_set.alphascCr)z*all numeric digit characters in this ranger)rrrisdigitrrrrrrv`rzunicode_set.numscCs |j|jS)z)all alphanumeric characters in this range)rXrvrrrrrWes zunicode_set.alphanumsN) rrrrrrrrrzrXrvrWrrrrr<s     rc@seZdZdZdejfgZGdddeZGdddeZ GdddeZ Gd d d eZ Gd d d eZ Gd ddeZ GdddeZGdddeZGddde eeZGdddeZGdddeZGdddeZGdddeZdS)rzF A namespace class for defining common language unicode_sets. c@eZdZdZddgZdS)zpyparsing_unicode.Latin1z/Unicode set for Latin-1 Unicode Character Range)r~)NrrrrrrrrrLatin1q rc@eZdZdZdgZdS)zpyparsing_unicode.LatinAz/Unicode set for Latin-A Unicode Character Range)iNrrrrrLatinAu rc@r)zpyparsing_unicode.LatinBz/Unicode set for Latin-B Unicode Character Range)iiONrrrrrLatinByrrc@eZdZdZgdZdS)zpyparsing_unicode.Greekz.Unicode set for Greek Unicode Character Ranges))ipi)ii)ii)i iE)iHiM)iPiW)iY)i[)i])i_i})ii)ii)ii)ii)ii)ii)iiNrrrrrGreek}rrc@r)zpyparsing_unicode.Cyrillicz0Unicode set for Cyrillic Unicode Character Range)iiNrrrrrCyrillicrrc@r)zpyparsing_unicode.Chinesez/Unicode set for Chinese Unicode Character Range)Nii0i?0NrrrrrChineserrc@sDeZdZdZgZGdddeZGdddeZGdddeZdS) zpyparsing_unicode.Japanesez`Unicode set for Japanese Unicode Character Range, combining Kanji, Hiragana, and Katakana rangesc@r)z pyparsing_unicode.Japanese.Kanjiz-Unicode set for Kanji Unicode Character Range)rirNrrrrrKanjirrc@r)z#pyparsing_unicode.Japanese.Hiraganaz0Unicode set for Hiragana Unicode Character Range)i@0i0NrrrrrHiraganarrc@r)z#pyparsing_unicode.Japanese.Katakanaz1Unicode set for Katakana Unicode Character Range)i0i0NrrrrrKatakanarrN) rrrrrrrrrrrrrJapaneses rc@r)zpyparsing_unicode.Koreanz.Unicode set for Korean Unicode Character Range))ii)ii)i01i1)i`i)iirNrrrrrKoreanrrc@r)zpyparsing_unicode.CJKzTUnicode set for combined Chinese, Japanese, and Korean (CJK) Unicode Character RangeNrrrrrCJKsr c@r)zpyparsing_unicode.Thaiz,Unicode set for Thai Unicode Character Range)ii:)i?i[NrrrrrThairr c@r)zpyparsing_unicode.Arabicz.Unicode set for Arabic Unicode Character Range))ii)ii)iiNrrrrrArabicrr c@r)zpyparsing_unicode.Hebrewz.Unicode set for Hebrew Unicode Character Range)iiNrrrrrHebrewrr c@r)zpyparsing_unicode.Devanagariz2Unicode set for Devanagari Unicode Character Range)i i )iiNrrrrr Devanagarirr N)rrrrr maxunicoderrrrrrrrrrr r r r r rrrrrks  ruالعربيةu中文uкириллицаuΕλληνικάuעִברִיתu 日本語u漢字u カタカナu ひらがなu 한국어u ไทยuदेवनागरीc@s,eZdZdZGdddZGdddZdS)pyparsing_testzB namespace class for classes useful in writing unit tests c@s8eZdZdZddZddZddZdd Zd d Zd S) z&pyparsing_test.reset_pyparsing_contextax Context manager to be used when writing unit tests that modify pyparsing config values: - packrat parsing - default whitespace characters. - default keyword characters - literal string auto-conversion class - __diag__ settings Example: with reset_pyparsing_context(): # test that literals used to construct a grammar are automatically suppressed ParserElement.inlineLiteralsUsing(Suppress) term = Word(alphas) | Word(nums) group = Group('(' + term[...] + ')') # assert that the '()' characters are not included in the parsed tokens self.assertParseAndCheckLisst(group, "(abc 123 def)", ['abc', '123', 'def']) # after exiting context manager, literals are converted to Literal expressions again cCs i|_dSr) _save_contextrrrrrrz/pyparsing_test.reset_pyparsing_context.__init__cCsftj|jd<tj|jd<tj|jd<tj|jd<tj|jd<ddtj D|jd<d t j i|jd <|S) Ndefault_whitespacedefault_keyword_charsliteral_string_classpackrat_enabled packrat_parsecSsi|]}|tt|qSr)rr)rr/rrr s z?pyparsing_test.reset_pyparsing_context.save..rrr') rGrrr4rrrr0r _all_namesr'rrrrrsaves      z+pyparsing_test.reset_pyparsing_context.savecCstj|jdkrt|jd|jdt_t|jd|jdD] \}}tt ||q%|jdt_ |jdt_ |jdt _ dS)Nrrrrrrr')rGrrrr4rrrNsetattrrrr0r'r)rr/rSrrrrestores   z.pyparsing_test.reset_pyparsing_context.restorecC|Sr)rrrrr __enter__ rz0pyparsing_test.reset_pyparsing_context.__enter__cGrr)rr rrr__exit__rz/pyparsing_test.reset_pyparsing_context.__exit__N) rrrrrrrrrrrrrreset_pyparsing_contexts rc@sReZdZdZ dddZ dddZ ddd Z dd d Zee dfd d Z dS)z&pyparsing_test.TestParseResultsAssertszk A mixin class to add parse results assertion methods to normal unittest.TestCase classes. NcCs@|dur|j|||d|dur|j|||ddSdS)z Unit test assertion to compare a ParseResults object with an optional expected_list, and compare any defined results names with an optional expected_dict. Nr) assertEqualr0r)rr expected_list expected_dictrrrrassertParseResultsEqualss z?pyparsing_test.TestParseResultsAsserts.assertParseResultsEqualsTcC2|j|dd}|rt||j|||ddS)z Convenience wrapper assert to test a parser element and input string, and assert that the resulting ParseResults.asList() is equal to the expected_list. Tr)r!rNrrrr#)rr test_stringr!rverboserrrrassertParseAndCheckList! z>pyparsing_test.TestParseResultsAsserts.assertParseAndCheckListcCr$)z Convenience wrapper assert to test a parser element and input string, and assert that the resulting ParseResults.asDict() is equal to the expected_dict. Tr)r"rNr%)rrr&r"rr'rrrrassertParseAndCheckDict-r)z>pyparsing_test.TestParseResultsAsserts.assertParseAndCheckDictc Cs|\}}|durddt||D}|D]k\}}} tdd| Dd} tdd| Dd} | durR|j| | p7|dt|trB|Wdn1sLwYqtdd| Dd} td d| Dd} | | fd krx|j|| | | pt|d qtd |q|j||dur|nd ddS)aP Unit test assertion to evaluate output of ParserElement.runTests(). If a list of list-dict tuples is given as the expected_parse_results argument, then these are zipped with the report tuples returned by runTests and evaluated using assertParseResultsEquals. Finally, asserts that the overall runTests() success value is True. :param run_tests_report: tuple(bool, [tuple(str, ParseResults or Exception)]) returned from runTests :param expected_parse_results (optional): [tuple(str, list, dict, Exception)] NcSs"g|] \}}|d|d|fqSrr)rrptexpectedrrrrHszOpyparsing_test.TestParseResultsAsserts.assertRunTestResults..cs|] }t|tr|VqdSr)rrrexprrrrQrzNpyparsing_test.TestParseResultsAsserts.assertRunTestResults..css(|]}t|trt|tr|VqdSr)rrrrr.rrrrTs )expected_exceptionrcsr-r)rr8r.rrrrcrcsr-r)rr;r.rrrrfrr)r!r"rzno validation for {!r}zfailed runTestsr) rr assertRaisesrrr#rr assertTrue)rrun_tests_reportexpected_parse_resultsrrun_test_successrun_test_resultsmergedr&rr,fail_msgr0r!r"rrrassertRunTestResults9sR    z;pyparsing_test.TestParseResultsAsserts.assertRunTestResultsccs<|j||d dVWddS1swYdS)Nr)r1)rrrrrrassertRaisesParseExceptionxs"zApyparsing_test.TestParseResultsAsserts.assertRaisesParseExceptionrrr) rrrrr#r(r*r9rrBr:rrrrTestParseResultsAssertss    ?r;N)rrrrrr;rrrrrsCr__main__selectfromrr)r"columnsr$tablescommandaK # '*' as column list and dotted table name select * from SYS.XYZZY # caseless match on "SELECT", and casts back to "select" SELECT * from XYZZY, ABC # list of column names, and mixed case SELECT keyword 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 # invalid column name - should fail Select ^^^ frox Sys.dual z] 100 -100 +100 3.14159 6.02e23 1e-12 z 100 FF z6 12345678-1234-5678-1234-567812345678 r)r)r Fr)FTFrr(rr$r%r&rweakrefrrFrrrrrTr{rrriroperatorr itertools functoolsr contextlibrr ImportErrorr_threadr threadingcollections.abcr r r r ru ordereddictrr'rrrr r!r"rrrr#enable_all_warnings__all__r version_inforrmaxsizerrr=chrrSrrrrrreversedr8rrr5rDrErmaxintxrangerK __builtin__rfnamerrrrr:rascii_uppercaseascii_lowercaserXrvrhrWr7r printablerzrrr@rBrDrFrIr+r rEregisterr]rnrkrrrrurrGrrOr/r:r7rrtrr4r*r)rrRrCrVrJrHr+rQrr2r6r5rMrLrTrSrCr(r?r9r.rAr0r8r;rr<rUrr>rKr1rPr,r3r-rNr=rrdr`rrsrrr>rwrerrrrrgrmrlrrr _escapedPunc_escapedHexChar_escapedOctChar _singleChar _charRanger#r]rrqrr~rrrfr~rorprrrrxrrrryrbrr}rrtrrYr{r[rZr;rrrkr_rr\rirrrcrarjr|rrr^rrrrrrrrrrr rrrr rr r rr selectToken fromTokenident columnNamecolumnNameList columnSpec tableName tableNameList simpleSQLrrrrrrrrrrstH                   ?]   H   D+! 'N E   KFym{VO#K,:#Dvj-D 0 $  W '*     0   0  %E &  h ~  (    "./J6  ,