Grammalecte  Check-in [23fcc016ee]

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Overview
Comment:[graphspell] code cleaning (pylint)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk | graphspell
Files: files | file ages | folders
SHA3-256:23fcc016eebebd4bb10d93f2b21309084d563c6867bfc251a5c7a818f233e633
User & Date: olr 2019-05-11 14:34:36
Context
2019-05-11
14:34
[core][fr] code cleaning check-in: b41f8c080b user: olr tags: core, fr, trunk
14:34
[graphspell] code cleaning (pylint) check-in: 23fcc016ee user: olr tags: graphspell, trunk
12:56
[build] code cleaning (pylint) check-in: 0f67f597ce user: olr tags: build, trunk
Changes

Changes to graphspell/dawg.py.

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        else:
            raise ValueError("# Error. Unknown stemming code: {}".format(cStemming))

        aEntry = set()
        lChar = ['']; dChar = {}; nChar = 1; dCharOccur = {}
        lAff  = [];   dAff  = {}; nAff  = 0; dAffOccur = {}
        lTag  = [];   dTag  = {}; nTag  = 0; dTagOccur = {}
        nErr = 0

        self.a2grams = set()

        try:
            zFilter = re.compile(sSelectFilterRegex)  if sSelectFilterRegex  else None
        except:
            print(" # Error. Wrong filter regex. Filter ignored.")
            traceback.print_exc()
            zFilter = None

        # read lexicon
        if type(src) is str:
            iterable = readFile(src)
        else:
            iterable = src
        for sFlex, sStem, sTag in iterable:
            if not zFilter or zFilter.search(sTag):
                self.a2grams.update(st.getNgrams(sFlex))
                addWordToCharDict(sFlex)
................................................................................
        aEntry = None

        # Dictionary of arc values occurrency, to sort arcs of each node
        dValOccur = dict( [ (dChar[c], dCharOccur[c])  for c in dChar ] \
                        + [ (dAff[aff]+nChar, dAffOccur[aff]) for aff in dAff ] \
                        + [ (dTag[tag]+nChar+nAff, dTagOccur[tag]) for tag in dTag ] )

        self.sFileName = src  if type(src) is str  else "[None]"
        self.sLangCode = sLangCode
        self.sLangName = sLangName
        self.sDicName = sDicName
        self.sDescription = sDescription
        if dLexiconData:
            self.sLangCode = dLexiconData.get("LangCode", self.sLangCode)
            self.sLangName = dLexiconData.get("LangName", self.sLangName)
................................................................................

    def select (self, sPattern=""):
        "generator: returns all entries which morphology fits <sPattern>"
        zPattern = None
        if sPattern:
            try:
                zPattern = re.compile(sPattern)
            except:
                print("# Error in regex pattern")
                traceback.print_exc()
        yield from self._select(zPattern, self.oRoot, "")

    def _select (self, zPattern, oNode, sWord):
        # recursive generator
        for nVal, oNextNode in oNode.arcs.items():







<





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        else:
            raise ValueError("# Error. Unknown stemming code: {}".format(cStemming))

        aEntry = set()
        lChar = ['']; dChar = {}; nChar = 1; dCharOccur = {}
        lAff  = [];   dAff  = {}; nAff  = 0; dAffOccur = {}
        lTag  = [];   dTag  = {}; nTag  = 0; dTagOccur = {}


        self.a2grams = set()

        try:
            zFilter = re.compile(sSelectFilterRegex)  if sSelectFilterRegex  else None
        except re.error:
            print("# Error. Wrong filter regex. Filter ignored: ", zFilter)
            traceback.print_exc()
            zFilter = None

        # read lexicon
        if isinstance(src, str):
            iterable = readFile(src)
        else:
            iterable = src
        for sFlex, sStem, sTag in iterable:
            if not zFilter or zFilter.search(sTag):
                self.a2grams.update(st.getNgrams(sFlex))
                addWordToCharDict(sFlex)
................................................................................
        aEntry = None

        # Dictionary of arc values occurrency, to sort arcs of each node
        dValOccur = dict( [ (dChar[c], dCharOccur[c])  for c in dChar ] \
                        + [ (dAff[aff]+nChar, dAffOccur[aff]) for aff in dAff ] \
                        + [ (dTag[tag]+nChar+nAff, dTagOccur[tag]) for tag in dTag ] )

        self.sFileName = src  if isinstance(src, str)  else "[None]"
        self.sLangCode = sLangCode
        self.sLangName = sLangName
        self.sDicName = sDicName
        self.sDescription = sDescription
        if dLexiconData:
            self.sLangCode = dLexiconData.get("LangCode", self.sLangCode)
            self.sLangName = dLexiconData.get("LangName", self.sLangName)
................................................................................

    def select (self, sPattern=""):
        "generator: returns all entries which morphology fits <sPattern>"
        zPattern = None
        if sPattern:
            try:
                zPattern = re.compile(sPattern)
            except re.error:
                print("# Error in regex pattern")
                traceback.print_exc()
        yield from self._select(zPattern, self.oRoot, "")

    def _select (self, zPattern, oNode, sWord):
        # recursive generator
        for nVal, oNextNode in oNode.arcs.items():

Changes to graphspell/ibdawg.py.

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        self.dSugg.clear()


class IBDAWG:
    """INDEXABLE BINARY DIRECT ACYCLIC WORD GRAPH"""

    def __init__ (self, source):
        if type(source) is str:
            self.by = pkgutil.get_data(__package__, "_dictionaries/" + source)
            if not self.by:
                raise OSError("# Error. File not found or not loadable: "+source)

            if source.endswith(".bdic"):
                self._initBinary()
            elif source.endswith(".json"):
                self._initJSON(json.loads(self.by.decode("utf-8")))     #json.loads(self.by)    # In Python 3.6, can read directly binary strings
            else:
                raise OSError("# Error. Unknown file type: "+source)
        else:
            self._initJSON(source)

        self.sFileName = source  if type(source) is str  else "[None]"

        self._arcMask = (2 ** ((self.nBytesArc * 8) - 3)) - 1
        self._finalNodeMask = 1 << ((self.nBytesArc * 8) - 1)
        self._lastArcMask = 1 << ((self.nBytesArc * 8) - 2)
        self._addrBitMask = 1 << ((self.nBytesArc * 8) - 3)  # version 2

        # function to decode the affix/suffix code
................................................................................
        zFlexPattern = None
        zTagsPattern = None
        try:
            if sFlexPattern:
                zFlexPattern = re.compile(sFlexPattern)
            if sTagsPattern:
                zTagsPattern = re.compile(sTagsPattern)
        except:
            print("# Error in regex pattern")
            traceback.print_exc()
        yield from self._select1(zFlexPattern, zTagsPattern, 0, "")

    # def morph (self, sWord):
    #     is defined in __init__

................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    nRawArc2 = 0
                    while not (nRawArc2 & self._lastArcMask):
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress
                iAddr = iEndArcAddr+self.nBytesNodeAddress
            return l
        return []
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                iAddr = iEndArcAddr+self.nBytesNodeAddress
................................................................................
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                # we return the address of the next node
                return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
            else:
                # value not found
                if nRawArc & self._lastArcMask:
                    return None
                iAddr = iEndArcAddr+self.nBytesNodeAddress

    def _getArcs1 (self, iAddr):
        "generator: return all arcs at <iAddr> as tuples of (nVal, iAddr)"
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            yield nRawArc & self._arcMask, int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    if not (nRawArc & self._addrBitMask):
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        # we go to the end of the node
                        iAddr2 = iEndArcAddr
                        while not (nRawArc & self._lastArcMask):
                            nRawArc = int.from_bytes(self.byDic[iAddr2:iAddr2+self.nBytesArc], byteorder='big')
                            iAddr2 += self.nBytesArc + self.nBytesNodeAddress
                    nRawArc2 = 0
                    while not (nRawArc2 & self._lastArcMask):
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress  if not (nRawArc2 & self._addrBitMask) else iEndArcAddr2
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr
            return l
        return []

    def _stem2 (self, sWord):
        "returns stems list of <sWord>"
        iAddr = 0
        for c in sWord:
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                    # Now , we go to the next node
                    if not (nRawArc & self._addrBitMask):
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        # we go to the end of the node
                        iAddr2 = iEndArcAddr
                        while not (nRawArc & self._lastArcMask):
                            nRawArc = int.from_bytes(self.byDic[iAddr2:iAddr2+self.nBytesArc], byteorder='big')
                            iAddr2 += self.nBytesArc + self.nBytesNodeAddress
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr
            return l
        return []

    def _lookupArcNode2 (self, nVal, iAddr):
        "looks if <nVal> is an arc at the node at <iAddr>, if yes, returns address of next node else None"
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                if not (nRawArc & self._addrBitMask):
                    # we return the address of the next node
                    return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                else:
                    # we go to the end of the node
                    iAddr = iEndArcAddr
                    while not (nRawArc & self._lastArcMask):
                        nRawArc = int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big')
                        iAddr += self.nBytesArc + self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else self.nBytesArc
                    return iAddr
            else:
                # value not found
                if nRawArc & self._lastArcMask:
                    return None
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr

    def _writeNodes2 (self, spfDest):
        "for debugging only"
        print(" > Write binary nodes")
        with open(spfDest, 'w', 'utf-8', newline="\n") as hDst:
            iAddr = 0
            hDst.write("i{:_>10} -- #{:_>10}\n".format("0", iAddr))
            while iAddr < len(self.byDic):
                iEndArcAddr = iAddr+self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if not (nRawArc & self._addrBitMask):
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   #{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesNodeAddress
                else:
                    hDst.write("  {:<20}  {:0>16}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:]))
                    iAddr = iEndArcAddr
                if nRawArc & self._lastArcMask:
................................................................................
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            iAddrNode = iAddr
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    if not (nRawArc & self._addrBitMask):
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        iAddr2 = iAddrNode + int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')
                    nRawArc2 = 0
                    while not (nRawArc2 & self._lastArcMask):
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress  if not (nRawArc2 & self._addrBitMask) else iEndArcAddr2+self.nBytesOffset
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr+self.nBytesOffset
            return l
        return []

    def _stem3 (self, sWord):
        "returns stems list of <sWord>"
        iAddr = 0
        for c in sWord:
................................................................................
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            #iAddrNode = iAddr
            while not (nRawArc & self._lastArcMask):
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr+self.nBytesOffset
            return l
        return []

    def _lookupArcNode3 (self, nVal, iAddr):
        "looks if <nVal> is an arc at the node at <iAddr>, if yes, returns address of next node else None"
        iAddrNode = iAddr
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                if not (nRawArc & self._addrBitMask):
                    return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                else:
                    return iAddrNode + int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')
            else:
                # value not found
                if nRawArc & self._lastArcMask:
                    return None
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not (nRawArc & self._addrBitMask)  else iEndArcAddr+self.nBytesOffset

    def _writeNodes3 (self, spfDest):
        "for debugging only"
        print(" > Write binary nodes")
        with open(spfDest, 'w', 'utf-8', newline="\n") as hDst:
            iAddr = 0
            hDst.write("i{:_>10} -- #{:_>10}\n".format("0", iAddr))
            while iAddr < len(self.byDic):
                iEndArcAddr = iAddr+self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if not (nRawArc & self._addrBitMask):
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   #{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesNodeAddress
                else:
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   +{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesOffset
                if nRawArc & self._lastArcMask:
                    hDst.write("\ni{:_>10} -- #{:_>10}\n".format("?", iAddr))
            hDst.close()







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        self.dSugg.clear()


class IBDAWG:
    """INDEXABLE BINARY DIRECT ACYCLIC WORD GRAPH"""

    def __init__ (self, source):
        if isinstance(source, str):
            self.by = pkgutil.get_data(__package__, "_dictionaries/" + source)
            if not self.by:
                raise OSError("# Error. File not found or not loadable: "+source)

            if source.endswith(".bdic"):
                self._initBinary()
            elif source.endswith(".json"):
                self._initJSON(json.loads(self.by.decode("utf-8")))     #json.loads(self.by)    # In Python 3.6, can read directly binary strings
            else:
                raise OSError("# Error. Unknown file type: "+source)
        else:
            self._initJSON(source)

        self.sFileName = source  if isinstance(source, str)  else "[None]"

        self._arcMask = (2 ** ((self.nBytesArc * 8) - 3)) - 1
        self._finalNodeMask = 1 << ((self.nBytesArc * 8) - 1)
        self._lastArcMask = 1 << ((self.nBytesArc * 8) - 2)
        self._addrBitMask = 1 << ((self.nBytesArc * 8) - 3)  # version 2

        # function to decode the affix/suffix code
................................................................................
        zFlexPattern = None
        zTagsPattern = None
        try:
            if sFlexPattern:
                zFlexPattern = re.compile(sFlexPattern)
            if sTagsPattern:
                zTagsPattern = re.compile(sTagsPattern)
        except re.error:
            print("# Error in regex pattern")
            traceback.print_exc()
        yield from self._select1(zFlexPattern, zTagsPattern, 0, "")

    # def morph (self, sWord):
    #     is defined in __init__

................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    nRawArc2 = 0
                    while not nRawArc2 & self._lastArcMask:
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress
                iAddr = iEndArcAddr+self.nBytesNodeAddress
            return l
        return []
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                iAddr = iEndArcAddr+self.nBytesNodeAddress
................................................................................
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                # we return the address of the next node
                return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')

            # value not found
            if nRawArc & self._lastArcMask:
                return None
            iAddr = iEndArcAddr+self.nBytesNodeAddress

    def _getArcs1 (self, iAddr):
        "generator: return all arcs at <iAddr> as tuples of (nVal, iAddr)"
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            yield nRawArc & self._arcMask, int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    if not nRawArc & self._addrBitMask:
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        # we go to the end of the node
                        iAddr2 = iEndArcAddr
                        while not nRawArc & self._lastArcMask:
                            nRawArc = int.from_bytes(self.byDic[iAddr2:iAddr2+self.nBytesArc], byteorder='big')
                            iAddr2 += self.nBytesArc + self.nBytesNodeAddress
                    nRawArc2 = 0
                    while not nRawArc2 & self._lastArcMask:
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress  if not nRawArc2 & self._addrBitMask else iEndArcAddr2
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr
            return l
        return []

    def _stem2 (self, sWord):
        "returns stems list of <sWord>"
        iAddr = 0
        for c in sWord:
................................................................................
                return []
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                    # Now , we go to the next node
                    if not nRawArc & self._addrBitMask:
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        # we go to the end of the node
                        iAddr2 = iEndArcAddr
                        while not nRawArc & self._lastArcMask:
                            nRawArc = int.from_bytes(self.byDic[iAddr2:iAddr2+self.nBytesArc], byteorder='big')
                            iAddr2 += self.nBytesArc + self.nBytesNodeAddress
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr
            return l
        return []

    def _lookupArcNode2 (self, nVal, iAddr):
        "looks if <nVal> is an arc at the node at <iAddr>, if yes, returns address of next node else None"
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                if not nRawArc & self._addrBitMask:
                    # we return the address of the next node
                    return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')

                # we go to the end of the node
                iAddr = iEndArcAddr
                while not nRawArc & self._lastArcMask:
                    nRawArc = int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big')
                    iAddr += self.nBytesArc + self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else self.nBytesArc
                return iAddr

            # value not found
            if nRawArc & self._lastArcMask:
                return None
            iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr

    def _writeNodes2 (self, spfDest):
        "for debugging only"
        print(" > Write binary nodes")
        with open(spfDest, 'w', 'utf-8', newline="\n") as hDst:
            iAddr = 0
            hDst.write("i{:_>10} -- #{:_>10}\n".format("0", iAddr))
            while iAddr < len(self.byDic):
                iEndArcAddr = iAddr+self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if not nRawArc & self._addrBitMask:
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   #{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesNodeAddress
                else:
                    hDst.write("  {:<20}  {:0>16}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:]))
                    iAddr = iEndArcAddr
                if nRawArc & self._lastArcMask:
................................................................................
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            iAddrNode = iAddr
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    sStem = ">" + self.funcStemming(sWord, self.lArcVal[nArc])
                    # Now , we go to the next node and retrieve all following arcs values, all of them are tags
                    if not nRawArc & self._addrBitMask:
                        iAddr2 = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    else:
                        iAddr2 = iAddrNode + int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')
                    nRawArc2 = 0
                    while not nRawArc2 & self._lastArcMask:
                        iEndArcAddr2 = iAddr2 + self.nBytesArc
                        nRawArc2 = int.from_bytes(self.byDic[iAddr2:iEndArcAddr2], byteorder='big')
                        l.append(sStem + "/" + self.lArcVal[nRawArc2 & self._arcMask])
                        iAddr2 = iEndArcAddr2+self.nBytesNodeAddress  if not nRawArc2 & self._addrBitMask  else iEndArcAddr2+self.nBytesOffset
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr+self.nBytesOffset
            return l
        return []

    def _stem3 (self, sWord):
        "returns stems list of <sWord>"
        iAddr = 0
        for c in sWord:
................................................................................
            iAddr = self._lookupArcNode(self.dChar[c], iAddr)
            if iAddr is None:
                return []
        if int.from_bytes(self.byDic[iAddr:iAddr+self.nBytesArc], byteorder='big') & self._finalNodeMask:
            l = []
            nRawArc = 0
            #iAddrNode = iAddr
            while not nRawArc & self._lastArcMask:
                iEndArcAddr = iAddr + self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if nArc > self.nChar:
                    # This value is not a char, this is a stemming code
                    l.append(self.funcStemming(sWord, self.lArcVal[nArc]))
                iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr+self.nBytesOffset
            return l
        return []

    def _lookupArcNode3 (self, nVal, iAddr):
        "looks if <nVal> is an arc at the node at <iAddr>, if yes, returns address of next node else None"
        iAddrNode = iAddr
        while True:
            iEndArcAddr = iAddr+self.nBytesArc
            nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
            if nVal == (nRawArc & self._arcMask):
                # the value we are looking for
                if not nRawArc & self._addrBitMask:
                    return int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')

                return iAddrNode + int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')

            # value not found
            if nRawArc & self._lastArcMask:
                return None
            iAddr = iEndArcAddr+self.nBytesNodeAddress  if not nRawArc & self._addrBitMask  else iEndArcAddr+self.nBytesOffset

    def _writeNodes3 (self, spfDest):
        "for debugging only"
        print(" > Write binary nodes")
        with open(spfDest, 'w', 'utf-8', newline="\n") as hDst:
            iAddr = 0
            hDst.write("i{:_>10} -- #{:_>10}\n".format("0", iAddr))
            while iAddr < len(self.byDic):
                iEndArcAddr = iAddr+self.nBytesArc
                nRawArc = int.from_bytes(self.byDic[iAddr:iEndArcAddr], byteorder='big')
                nArc = nRawArc & self._arcMask
                if not nRawArc & self._addrBitMask:
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesNodeAddress], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   #{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesNodeAddress
                else:
                    iNextNodeAddr = int.from_bytes(self.byDic[iEndArcAddr:iEndArcAddr+self.nBytesOffset], byteorder='big')
                    hDst.write("  {:<20}  {:0>16}  i{:>10}   +{:_>10}\n".format(self.lArcVal[nArc], bin(nRawArc)[2:], "?", iNextNodeAddr))
                    iAddr = iEndArcAddr+self.nBytesOffset
                if nRawArc & self._lastArcMask:
                    hDst.write("\ni{:_>10} -- #{:_>10}\n".format("?", iAddr))
            hDst.close()