Grammalecte  Diff

"""
Grammalecte
Grammar checker engine
"""

import re
import sys
import os
import traceback
#import unicodedata
from itertools import chain

from ..graphspell.spellchecker import SpellChecker
from ..graphspell.tokenizer import Tokenizer
from ..graphspell.echo import echo
from . import gc_options

from ..graphspell.tokenizer import Tokenizer
from .gc_rules_graph import dAllGraph, dRule

try:
    # LibreOffice / OpenOffice
    from com.sun.star.linguistic2 import SingleProofreadingError
    from com.sun.star.text.TextMarkupType import PROOFREADING
    from com.sun.star.beans import PropertyValue

lang = "${lang}"
locales = ${loc}
pkg = "${implname}"
name = "${name}"
version = "${version}"
author = "${author}"

# Modules
_rules = None                               # module gc_rules

# data
_sAppContext = ""                           # what software is running
_dOptions = None
_oSpellChecker = None
_oTokenizer = None

    iStart = _zBeginOfParagraph.match(sText).end()
    for m in _zEndOfSentence.finditer(sText):
        yield (iStart, m.end())
        iStart = m.end()


def parse (sText, sCountry="${country_default}", bDebug=False, dOptions=None, bContext=False):
    "analyses the paragraph sText and returns list of errors"
    #sText = unicodedata.normalize("NFC", sText)
    dErrors = {}
    sRealText = sText
    dPriority = {}  # Key = position; value = priority
    dOpt = _dOptions  if not dOptions  else dOptions
    bShowRuleId = option('idrule')

    "init point to analyze a text"
    # parse paragraph
    try:
        sNew, dErrors = _proofread(None, sText, sRealText, 0, True, dErrors, dPriority, sCountry, dOpt, bShowRuleId, bDebug, bContext)
        if sNew:
            sText = sNew
    oText = TextParser(sText)
    except:
        raise

    return oText.parse(sCountry, bDebug, dOptions, bContext)
    # cleanup
    if " " in sText:
        sText = sText.replace(" ", ' ') # nbsp
    if " " in sText:
        sText = sText.replace(" ", ' ') # nnbsp
    if "'" in sText:
        sText = sText.replace("'", "’")
    if "‑" in sText:
        sText = sText.replace("‑", "-") # nobreakdash

    # parse sentences
    for iStart, iEnd in _getSentenceBoundaries(sText):
        if 4 < (iEnd - iStart) < 2000:
            try:
                oSentence = TextParser(sText[iStart:iEnd], sRealText[iStart:iEnd], iStart)
                _, dErrors = _proofread(oSentence, sText[iStart:iEnd], sRealText[iStart:iEnd], iStart, False, dErrors, dPriority, sCountry, dOpt, bShowRuleId, bDebug, bContext)
            except:
                raise
    return dErrors.values() # this is a view (iterable)


def _proofread (oSentence, s, sx, nOffset, bParagraph, dErrors, dPriority, sCountry, dOptions, bShowRuleId, bDebug, bContext):
    bParagraphChange = False
    bSentenceChange = False
    dTokenPos = oSentence.dTokenPos if oSentence else {}
    for sOption, lRuleGroup in _getRules(bParagraph):
        if sOption == "@@@@":
            # graph rules
            oSentence.dError = dErrors
            if not bParagraph and bSentenceChange:
                oSentence.update(s, bDebug)
                bSentenceChange = False
            for sGraphName, sLineId in lRuleGroup:
                if sGraphName not in dOptions or dOptions[sGraphName]:
                    if bDebug:
                        print("\n>>>> GRAPH:", sGraphName, sLineId)
                    bParagraphChange, s = oSentence.parse(dAllGraph[sGraphName], dPriority, sCountry, dOptions, bShowRuleId, bDebug, bContext)
                    dErrors.update(oSentence.dError)
                    dTokenPos = oSentence.dTokenPos
        elif not sOption or dOptions.get(sOption, False):
            # regex rules
            for zRegex, bUppercase, sLineId, sRuleId, nPriority, lActions in lRuleGroup:
                if sRuleId not in _aIgnoredRules:
                    for m in zRegex.finditer(s):
                        bCondMemo = None
                        for sFuncCond, cActionType, sWhat, *eAct in lActions:
                            # action in lActions: [ condition, action type, replacement/suggestion/action[, iGroup[, message, URL]] ]
                            try:
                                bCondMemo = not sFuncCond or globals()[sFuncCond](s, sx, m, dTokenPos, sCountry, bCondMemo)
                                if bCondMemo:
                                    if bDebug:
                                        print("RULE:", sLineId)
                                    if cActionType == "-":
                                        # grammar error
                                        nErrorStart = nOffset + m.start(eAct[0])
                                        if nErrorStart not in dErrors or nPriority > dPriority.get(nErrorStart, -1):
                                            dErrors[nErrorStart] = _createError(s, sx, sWhat, nOffset, m, eAct[0], sLineId, sRuleId, bUppercase, eAct[1], eAct[2], bShowRuleId, sOption, bContext)
                                            dPriority[nErrorStart] = nPriority
                                    elif cActionType == "~":
                                        # text processor
                                        s = _rewrite(s, sWhat, eAct[0], m, bUppercase)
                                        bParagraphChange = True
                                        bSentenceChange = True
                                        if bDebug:
                                            echo("~ " + s + "  -- " + m.group(eAct[0]) + "  # " + sLineId)
                                    elif cActionType == "=":
                                        # disambiguation
                                        if not bParagraph:
                                            globals()[sWhat](s, m, dTokenPos)
                                            if bDebug:
                                                echo("= " + m.group(0) + "  # " + sLineId)
                                    elif cActionType == ">":
                                        # we do nothing, this test is just a condition to apply all following actions
                                        pass
                                    else:
                                        echo("# error: unknown action at " + sLineId)
                                elif cActionType == ">":
                                    break
                            except Exception as e:
                                raise Exception(str(e), "# " + sLineId + " # " + sRuleId)
    if bParagraphChange:
        return (s, dErrors)
    return (False, dErrors)


def _createError (s, sx, sRepl, nOffset, m, iGroup, sLineId, sRuleId, bUppercase, sMsg, sURL, bShowRuleId, sOption, bContext):
    nStart = nOffset + m.start(iGroup)
    nEnd = nOffset + m.end(iGroup)
    # suggestions
    if sRepl[0:1] == "=":
        sSugg = globals()[sRepl[1:]](s, m)
        lSugg = sSugg.split("|")  if sSugg  else []
    elif sRepl == "_":
        lSugg = []
    else:
        lSugg = m.expand(sRepl).split("|")
    if bUppercase and lSugg and m.group(iGroup)[0:1].isupper():
        lSugg = list(map(str.capitalize, lSugg))
    # Message
    sMessage = globals()[sMsg[1:]](s, m)  if sMsg[0:1] == "="  else  m.expand(sMsg)
    if bShowRuleId:
        sMessage += "  # " + sLineId + " # " + sRuleId
    #
    if _bWriterError:
        xErr = SingleProofreadingError()    # uno.createUnoStruct( "com.sun.star.linguistic2.SingleProofreadingError" )
        xErr.nErrorStart = nStart
        xErr.nErrorLength = nEnd - nStart
        xErr.nErrorType = PROOFREADING
        xErr.aRuleIdentifier = sRuleId
        xErr.aShortComment = sMessage   # sMessage.split("|")[0]     # in context menu
        xErr.aFullComment = sMessage   # sMessage.split("|")[-1]    # in dialog
        xErr.aSuggestions = tuple(lSugg)
        if sURL:
            xProperty = PropertyValue(Name="FullCommentURL", Value=sURL)
            xErr.aProperties = (xProperty,)
        else:
            xErr.aProperties = ()
        return xErr
    else:
        dErr = {}
        dErr["nStart"] = nStart
        dErr["nEnd"] = nEnd
        dErr["sLineId"] = sLineId
        dErr["sRuleId"] = sRuleId
        dErr["sType"] = sOption  if sOption  else "notype"
        dErr["sMessage"] = sMessage
        dErr["aSuggestions"] = lSugg
        dErr["URL"] = sURL  if sURL  else ""
        if bContext:
            dErr['sUnderlined'] = sx[nStart:nEnd]
            dErr['sBefore'] = sx[max(0,nStart-80):nStart]
            dErr['sAfter'] = sx[nEnd:nEnd+80]
        return dErr


def _rewrite (sSentence, sRepl, iGroup, m, bUppercase):
    "text processor: write <sRepl> in <sSentence> at <iGroup> position"
    nLen = m.end(iGroup) - m.start(iGroup)
    if sRepl == "*":
        sNew = " " * nLen
    elif sRepl == "_":
        sNew = sRepl + " " * (nLen-1)
    elif sRepl[0:1] == "=":
        sNew = globals()[sRepl[1:]](sSentence, m)
        sNew = sNew + " " * (nLen-len(sNew))
        if bUppercase and m.group(iGroup)[0:1].isupper():
            sNew = sNew.capitalize()
    else:
        sNew = m.expand(sRepl)
        sNew = sNew + " " * (nLen-len(sNew))
    return sSentence[0:m.start(iGroup)] + sNew + sSentence[m.end(iGroup):]


def ignoreRule (sRuleId):
    "disable rule <sRuleId>"
    _aIgnoredRules.add(sRuleId)

                if not sFilter or zFilter.search(sRuleId):
                    yield (sOption, sLineId, sRuleId)


def displayRules (sFilter=None):
    "display the name of rules, with the filter <sFilter>"
    echo("List of rules. Filter: << " + str(sFilter) + " >>")
    for sOption, sLineId, sRuleId in listRules(sFilter):
    for sOption, sLineId, sRuleId in listRegexRules(sFilter):
        echo("{:<10} {:<10} {}".format(sOption, sLineId, sRuleId))


def setOption (sOpt, bVal):
    "set option <sOpt> with <bVal> if it exists"
    if sOpt in _dOptions:
        _dOptions[sOpt] = bVal

    _dOptions = dict(gc_options.getOptions(_sAppContext))


def getSpellChecker ():
    "return the spellchecker object"
    return _oSpellChecker


def _getPath ():
    return os.path.join(os.path.dirname(sys.modules[__name__].__file__), __name__ + ".py")



#### common functions

def option (sOpt):
    "return True if option <sOpt> is active"
    return _dOptions.get(sOpt, False)


def displayInfo (dTokenPos, tWord):
    "for debugging: retrieve info of word"
    if not tWord:
        echo("> nothing to find")
        return True
    lMorph = _oSpellChecker.getMorph(tWord[1])
    if not lMorph:
        echo("> not in dictionary")
        return True
    print("TOKENS:", dTokenPos)
    if tWord[0] in dTokenPos and "lMorph" in dTokenPos[tWord[0]]:
        echo("DA: " + str(dTokenPos[tWord[0]]["lMorph"]))
    echo("FSA: " + str(lMorph))
    return True


def morph (dTokenPos, tWord, sPattern, sNegPattern="", bNoWord=False):
    "analyse a tuple (position, word), returns True if not sNegPattern in word morphologies and sPattern in word morphologies (disambiguation on)"
    if not tWord:
        return bNoWord
    lMorph = dTokenPos[tWord[0]]["lMorph"]  if tWord[0] in dTokenPos and "lMorph" in dTokenPos[tWord[0]]  else _oSpellChecker.getMorph(tWord[1])
    if not lMorph:
        return False
    # check negative condition
    if sNegPattern:
        if sNegPattern == "*":
            # all morph must match sPattern
            zPattern = re.compile(sPattern)
            return all(zPattern.search(sMorph)  for sMorph in lMorph)
        else:
            zNegPattern = re.compile(sNegPattern)
            if any(zNegPattern.search(s)  for s in lMorph):
                return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(s)  for s in lMorph)


def analyse (sWord, sPattern, sNegPattern=""):
    "analyse a word, returns True if not sNegPattern in word morphologies and sPattern in word morphologies (disambiguation off)"
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph:
        return False
    # check negative condition
    if sNegPattern:
        if sNegPattern == "*":
            zPattern = re.compile(sPattern)
            return all(zPattern.search(sMorph)  for sMorph in lMorph)
        else:
            zNegPattern = re.compile(sNegPattern)
            if any(zNegPattern.search(s)  for s in lMorph):
                return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(s)  for s in lMorph)



## functions to get text outside pattern scope

# warning: check compile_rules.py to understand how it works

_zNextWord = re.compile(r" +(\w[\w-]*)")
_zPrevWord = re.compile(r"(\w[\w-]*) +$")

def nextword (s, iStart, n):
    "get the nth word of the input string or empty string"
    m = re.match("(?: +[\\w%-]+){" + str(n-1) + "} +([\\w%-]+)", s[iStart:])
    if not m:
        return None
    return (iStart+m.start(1), m.group(1))


def prevword (s, iEnd, n):
    "get the (-)nth word of the input string or empty string"
    m = re.search("([\\w%-]+) +(?:[\\w%-]+ +){" + str(n-1) + "}$", s[:iEnd])
    if not m:
        return None
    return (m.start(1), m.group(1))


def nextword1 (s, iStart):
    "get next word (optimization)"
    m = _zNextWord.match(s[iStart:])
    if not m:
        return None
    return (iStart+m.start(1), m.group(1))


def prevword1 (s, iEnd):
    "get previous word (optimization)"
    m = _zPrevWord.search(s[:iEnd])
    if not m:
        return None
    return (m.start(1), m.group(1))


def look (s, sPattern, sNegPattern=None):
    "seek sPattern in s (before/after/fulltext), if sNegPattern not in s"
    if sNegPattern and re.search(sNegPattern, s):
        return False
    if re.search(sPattern, s):
        return True
    return False


def look_chk1 (dTokenPos, s, nOffset, sPattern, sPatternGroup1, sNegPatternGroup1=None):
    "returns True if s has pattern sPattern and m.group(1) has pattern sPatternGroup1"
    m = re.search(sPattern, s)
    if not m:
        return False
    try:
        sWord = m.group(1)
        nPos = m.start(1) + nOffset
    except:
        return False
    if sNegPatternGroup1:
        return morphex(dTokenPos, (nPos, sWord), sPatternGroup1, sNegPatternGroup1)
    return morph(dTokenPos, (nPos, sWord), sPatternGroup1, False)


#### Disambiguator

def select (dTokenPos, nPos, sWord, sPattern, lDefault=None):
    "Disambiguation: select morphologies of <sWord> matching <sPattern>"
    if not sWord:
        return True
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph or len(lMorph) == 1:
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dTokenPos[nPos]["lMorph"] = lSelect
    elif lDefault:
        dTokenPos[nPos]["lMorph"] = lDefault
    return True


def exclude (dTokenPos, nPos, sWord, sPattern, lDefault=None):
    "Disambiguation: exclude morphologies of <sWord> matching <sPattern>"
    if not sWord:
        return True
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph or len(lMorph) == 1:
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if not re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dTokenPos[nPos]["lMorph"] = lSelect
    elif lDefault:
        dTokenPos[nPos]["lMorph"] = lDefault
    return True


def define (dTokenPos, nPos, lMorph):
    "Disambiguation: set morphologies of token at <nPos> with <lMorph>"
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    dTokenPos[nPos]["lMorph"] = lMorph
    return True




#### TEXT PARSER

class TextParser:
    "Text parser"

    def __init__ (self, sSentence, sSentence0, nOffset):
        self.sSentence = sSentence
        self.sSentence0 = sSentence0
        self.nOffsetWithinParagraph = nOffset
        self.lToken = list(_oTokenizer.genTokens(sSentence, True))
        self.dTokenPos = { dToken["nStart"]: dToken  for dToken in self.lToken  if dToken["sType"] != "INFO" }
    def __init__ (self, sText):
        self.sText = sText
        self.sText0 = sText
        self.sSentence = ""
        self.sSentence0 = ""
        self.nOffsetWithinParagraph = 0
        self.lToken = []
        self.dTokenPos = {}
        self.dTags = {}
        self.dError = {}
        self.dErrorPriority = {}  # Key = position; value = priority

    def __str__ (self):
        s = "===== TEXT =====\n"
        s += "sentence: " + self.sSentence0 + "\n"
        s += "now:      " + self.sSentence  + "\n"
        for dToken in self.lToken:
            s += '#{i}\t{nStart}:{nEnd}\t{sValue}\t{sType}'.format(**dToken)
            if "lMorph" in dToken:
                s += "\t" + str(dToken["lMorph"])
            if "tags" in dToken:
                s += "\t" + str(dToken["tags"])
            s += "\n"
        #for nPos, dToken in self.dTokenPos.items():
        #    s += f"{nPos}\t{dToken}\n"
        #    s += "{}\t{}\n".format(nPos, dToken)
        return s

    def parse (self, sCountry="${country_default}", bDebug=False, dOptions=None, bContext=False):
        "analyses the paragraph sText and returns list of errors"
        #sText = unicodedata.normalize("NFC", sText)
        dOpt = _dOptions  if not dOptions  else dOptions
        bShowRuleId = option('idrule')

        # parse paragraph
        try:
            self.parseText(self.sText, self.sText0, True, 0, sCountry, dOpt, bShowRuleId, bDebug, bContext)
        except:
            raise

        # cleanup
        sText = self.sText
        if " " in sText:
            sText = sText.replace(" ", ' ') # nbsp
        if " " in sText:
            sText = sText.replace(" ", ' ') # nnbsp
        if "'" in sText:
            sText = sText.replace("'", "’")
        if "‑" in sText:
            sText = sText.replace("‑", "-") # nobreakdash

        # parse sentences
        for iStart, iEnd in _getSentenceBoundaries(sText):
            if 4 < (iEnd - iStart) < 2000:
                try:
                    self.sSentence = sText[iStart:iEnd]
                    self.sSentence0 = self.sText0[iStart:iEnd]
                    self.nOffsetWithinParagraph = iStart
                    self.lToken = list(_oTokenizer.genTokens(self.sSentence, True))
                    self.dTokenPos = { dToken["nStart"]: dToken  for dToken in self.lToken  if dToken["sType"] != "INFO" }
                    self.parseText(self.sSentence, self.sSentence0, False, iStart, sCountry, dOpt, bShowRuleId, bDebug, bContext)
                except:
                    raise
        return self.dError.values() # this is a view (iterable)

    def parseText (self, sText, sText0, bParagraph, nOffset, sCountry, dOptions, bShowRuleId, bDebug, bContext):
        bChange = False
        for sOption, lRuleGroup in _getRules(bParagraph):
            if sOption == "@@@@":
                # graph rules
                if not bParagraph and bChange:
                    self.update(sText, bDebug)
                    bChange = False
                for sGraphName, sLineId in lRuleGroup:
                    if sGraphName not in dOptions or dOptions[sGraphName]:
                        if bDebug:
                            print("\n>>>> GRAPH:", sGraphName, sLineId)
                        sText = self.parseGraph(dAllGraph[sGraphName], sCountry, dOptions, bShowRuleId, bDebug, bContext)
            elif not sOption or dOptions.get(sOption, False):
                # regex rules
                for zRegex, bUppercase, sLineId, sRuleId, nPriority, lActions in lRuleGroup:
                    if sRuleId not in _aIgnoredRules:
                        for m in zRegex.finditer(sText):
                            bCondMemo = None
                            for sFuncCond, cActionType, sWhat, *eAct in lActions:
                                # action in lActions: [ condition, action type, replacement/suggestion/action[, iGroup[, message, URL]] ]
                                try:
                                    bCondMemo = not sFuncCond or globals()[sFuncCond](sText, sText0, m, self.dTokenPos, sCountry, bCondMemo)
                                    if bCondMemo:
                                        if bDebug:
                                            print("RULE:", sLineId)
                                        if cActionType == "-":
                                            # grammar error
                                            nErrorStart = nOffset + m.start(eAct[0])
                                            if nErrorStart not in self.dError or nPriority > self.dErrorPriority.get(nErrorStart, -1):
                                                self.dError[nErrorStart] = self._createErrorFromRegex(sText, sText0, sWhat, nOffset, m, eAct[0], sLineId, sRuleId, bUppercase, eAct[1], eAct[2], bShowRuleId, sOption, bContext)
                                                self.dErrorPriority[nErrorStart] = nPriority
                                        elif cActionType == "~":
                                            # text processor
                                            sText = self.rewriteText(sText, sWhat, eAct[0], m, bUppercase)
                                            bChange = True
                                            if bDebug:
                                                echo("~ " + sText + "  -- " + m.group(eAct[0]) + "  # " + sLineId)
                                        elif cActionType == "=":
                                            # disambiguation
                                            if not bParagraph:
                                                globals()[sWhat](sText, m, self.dTokenPos)
                                                if bDebug:
                                                    echo("= " + m.group(0) + "  # " + sLineId)
                                        elif cActionType == ">":
                                            # we do nothing, this test is just a condition to apply all following actions
                                            pass
                                        else:
                                            echo("# error: unknown action at " + sLineId)
                                    elif cActionType == ">":
                                        break
                                except Exception as e:
                                    raise Exception(str(e), "# " + sLineId + " # " + sRuleId)
        if bChange:
            if bParagraph:
                self.sText = sText
            else:
                self.sSentence = sText

    def update (self, sSentence, bDebug=False):
        "update <sSentence> and retokenize"
        self.sSentence = sSentence
        lNewToken = list(_oTokenizer.genTokens(sSentence, True))
        for dToken in lNewToken:
            if "lMorph" in self.dTokenPos.get(dToken["nStart"], {}):

            yield dPointer
        # JUMP
        # Warning! Recurssion!
        if "<>" in dNode:
            dPointer2 = { "iNode1": iNode1, "dNode": dGraph[dNode["<>"]], "bKeep": True }
            yield from self._getNextPointers(dToken, dGraph, dPointer2, bDebug)


    def parse (self, dGraph, dPriority, sCountry="${country_default}", dOptions=None, bShowRuleId=False, bDebug=False, bContext=False):
        "parse tokens from the text and execute actions encountered"
    def parseGraph (self, dGraph, sCountry="${country_default}", dOptions=None, bShowRuleId=False, bDebug=False, bContext=False):
        "parse graph with tokens from the text and execute actions encountered"
        dOpt = _dOptions  if not dOptions  else dOptions
        lPointer = []
        bTagAndRewrite = False
        for iToken, dToken in enumerate(self.lToken):
            if bDebug:
                print("TOKEN:", dToken["sValue"])
            # check arcs for each existing pointer
            lNextPointer = []
            for dPointer in lPointer:
                lNextPointer.extend(self._getNextPointers(dToken, dGraph, dPointer, bDebug))
            lPointer = lNextPointer
            # check arcs of first nodes
            lPointer.extend(self._getNextPointers(dToken, dGraph, { "iNode1": iToken, "dNode": dGraph[0] }, bDebug))
            # check if there is rules to check for each pointer
            for dPointer in lPointer:
                #if bDebug:
                #    print("+", dPointer)
                if "<rules>" in dPointer["dNode"]:
                    bChange = self._executeActions(dGraph, dPointer["dNode"]["<rules>"], dPointer["iNode1"]-1, iToken, dPriority, dOpt, sCountry, bShowRuleId, bDebug, bContext)
                    bChange = self._executeActions(dGraph, dPointer["dNode"]["<rules>"], dPointer["iNode1"]-1, iToken, dOpt, sCountry, bShowRuleId, bDebug, bContext)
                    if bChange:
                        bTagAndRewrite = True
        if bTagAndRewrite:
            self.rewrite(bDebug)
            self.rewriteFromTags(bDebug)
        if bDebug:
            print(self)
        return (bTagAndRewrite, self.sSentence)
        return self.sSentence

    def _executeActions (self, dGraph, dNode, nTokenOffset, nLastToken, dPriority, dOptions, sCountry, bShowRuleId, bDebug, bContext):
    def _executeActions (self, dGraph, dNode, nTokenOffset, nLastToken, dOptions, sCountry, bShowRuleId, bDebug, bContext):
        "execute actions found in the DARG"
        bChange = False
        for sLineId, nextNodeKey in dNode.items():
            bCondMemo = None
            for sRuleId in dGraph[nextNodeKey]:
                try:
                    if bDebug:

                                # grammar error
                                iTokenStart, iTokenEnd, cStartLimit, cEndLimit, bCaseSvty, nPriority, sMessage, sURL = eAct
                                nTokenErrorStart = nTokenOffset + iTokenStart  if iTokenStart > 0  else nLastToken + iTokenStart
                                if "bImmune" not in self.lToken[nTokenErrorStart]:
                                    nTokenErrorEnd = nTokenOffset + iTokenEnd  if iTokenEnd > 0  else nLastToken + iTokenEnd
                                    nErrorStart = self.nOffsetWithinParagraph + (self.lToken[nTokenErrorStart]["nStart"] if cStartLimit == "<"  else self.lToken[nTokenErrorStart]["nEnd"])
                                    nErrorEnd = self.nOffsetWithinParagraph + (self.lToken[nTokenErrorEnd]["nEnd"] if cEndLimit == ">"  else self.lToken[nTokenErrorEnd]["nStart"])
                                    if nErrorStart not in self.dError or nPriority > dPriority.get(nErrorStart, -1):
                                        self.dError[nErrorStart] = self._createError(sWhat, nTokenOffset, nLastToken, nTokenErrorStart, nErrorStart, nErrorEnd, sLineId, sRuleId, bCaseSvty, sMessage, sURL, bShowRuleId, sOption, bContext)
                                        dPriority[nErrorStart] = nPriority
                                    if nErrorStart not in self.dError or nPriority > self.dErrorPriority.get(nErrorStart, -1):
                                        self.dError[nErrorStart] = self._createErrorFromTokens(sWhat, nTokenOffset, nLastToken, nTokenErrorStart, nErrorStart, nErrorEnd, sLineId, sRuleId, bCaseSvty, sMessage, sURL, bShowRuleId, sOption, bContext)
                                        self.dErrorPriority[nErrorStart] = nPriority
                                        if bDebug:
                                            print("    NEW_ERROR:  ", sRuleId, sLineId, ": ", self.dError[nErrorStart])
                            elif cActionType == "~":
                                # text processor
                                nTokenStart = nTokenOffset + eAct[0]  if eAct[0] > 0  else nLastToken + eAct[0]
                                nTokenEnd = nTokenOffset + eAct[1]  if eAct[1] > 0  else nLastToken + eAct[1]
                                self._tagAndPrepareTokenForRewriting(sWhat, nTokenStart, nTokenEnd, nTokenOffset, nLastToken, eAct[2], bDebug)

                            if bDebug:
                                print("    COND_BREAK:  ", sRuleId, sLineId)
                            break
                except Exception as e:
                    raise Exception(str(e), sLineId, sRuleId, self.sSentence)
        return bChange

    def _createErrorFromRegex (self, sText, sText0, sRepl, nOffset, m, iGroup, sLineId, sRuleId, bUppercase, sMsg, sURL, bShowRuleId, sOption, bContext):
        nStart = nOffset + m.start(iGroup)
        nEnd = nOffset + m.end(iGroup)
        # suggestions
        if sRepl[0:1] == "=":
            sSugg = globals()[sRepl[1:]](sText, m)
            lSugg = sSugg.split("|")  if sSugg  else []
        elif sRepl == "_":
            lSugg = []
        else:
            lSugg = m.expand(sRepl).split("|")
        if bUppercase and lSugg and m.group(iGroup)[0:1].isupper():
            lSugg = list(map(str.capitalize, lSugg))
        # Message
        sMessage = globals()[sMsg[1:]](sText, m)  if sMsg[0:1] == "="  else  m.expand(sMsg)
        if bShowRuleId:
            sMessage += "  # " + sLineId + " # " + sRuleId
        #
        if _bWriterError:
            return self._createErrorForWriter(nStart, nEnd - nStart, sRuleId, sMessage, lSugg, sURL)
        else:
            return self._createErrorAsDict(nStart, nEnd, sLineId, sRuleId, sOption, sMessage, lSugg, sURL, bContext)

    def _createError (self, sSugg, nTokenOffset, nLastToken, iFirstToken, nStart, nEnd, sLineId, sRuleId, bCaseSvty, sMsg, sURL, bShowRuleId, sOption, bContext):
    def _createErrorFromTokens (self, sSugg, nTokenOffset, nLastToken, iFirstToken, nStart, nEnd, sLineId, sRuleId, bCaseSvty, sMsg, sURL, bShowRuleId, sOption, bContext):
        # suggestions
        if sSugg[0:1] == "=":
            sSugg = globals()[sSugg[1:]](self.lToken, nTokenOffset, nLastToken)
            lSugg = sSugg.split("|")  if sSugg  else []
        elif sSugg == "_":
            lSugg = []
        else:
            lSugg = self._expand(sSugg, nTokenOffset, nLastToken).split("|")
        if bCaseSvty and lSugg and self.lToken[iFirstToken]["sValue"][0:1].isupper():
            lSugg = list(map(lambda s: s[0:1].upper()+s[1:], lSugg))
        # Message
        sMessage = globals()[sMsg[1:]](self.lToken, nTokenOffset, nLastToken)  if sMsg[0:1] == "="  else self._expand(sMsg, nTokenOffset, nLastToken)
        if bShowRuleId:
            sMessage += "  " + sLineId + " # " + sRuleId
        #
        if _bWriterError:
            return self._createErrorForWriter(nStart, nEnd - nStart, sRuleId, sMessage, lSugg, sURL)
        else:
            return self._createErrorAsDict(nStart, nEnd, sLineId, sRuleId, sOption, sMessage, lSugg, sURL, bContext)

    def _createErrorForWriter (self, nStart, nLen, sRuleId, sMessage, lSugg, sURL):
            xErr = SingleProofreadingError()    # uno.createUnoStruct( "com.sun.star.linguistic2.SingleProofreadingError" )
            xErr.nErrorStart = nStart
            xErr.nErrorLength = nEnd - nStart
            xErr.nErrorType = PROOFREADING
            xErr.aRuleIdentifier = sRuleId
            xErr.aShortComment = sMessage   # sMessage.split("|")[0]     # in context menu
            xErr.aFullComment = sMessage    # sMessage.split("|")[-1]    # in dialog
            xErr.aSuggestions = tuple(lSugg)
            #xPropertyLineType = PropertyValue(Name="LineType", Value=5) # DASH or WAVE
            #xPropertyLineColor = PropertyValue(Name="LineColor", Value=getRGB("FFAA00"))
            if sURL:
                xPropertyURL = PropertyValue(Name="FullCommentURL", Value=sURL)
                xErr.aProperties = (xPropertyURL,)
            else:
                xErr.aProperties = ()
            return xErr
        else:
            dErr = {}
            dErr["nStart"] = nStart
            dErr["nEnd"] = nEnd
            dErr["sLineId"] = sLineId
            dErr["sRuleId"] = sRuleId
            dErr["sType"] = sOption  if sOption  else "notype"
            dErr["sMessage"] = sMessage
            dErr["aSuggestions"] = lSugg
            dErr["URL"] = sURL  if sURL  else ""
            if bContext:
                dErr['sUnderlined'] = self.sSentence0[nStart:nEnd]
                dErr['sBefore'] = self.sSentence0[max(0,nStart-80):nStart]
                dErr['sAfter'] = self.sSentence0[nEnd:nEnd+80]
            return dErr
        xErr = SingleProofreadingError()    # uno.createUnoStruct( "com.sun.star.linguistic2.SingleProofreadingError" )
        xErr.nErrorStart = nStart
        xErr.nErrorLength = nLen
        xErr.nErrorType = PROOFREADING
        xErr.aRuleIdentifier = sRuleId
        xErr.aShortComment = sMessage   # sMessage.split("|")[0]     # in context menu
        xErr.aFullComment = sMessage    # sMessage.split("|")[-1]    # in dialog
        xErr.aSuggestions = tuple(lSugg)
        #xPropertyLineType = PropertyValue(Name="LineType", Value=5) # DASH or WAVE
        #xPropertyLineColor = PropertyValue(Name="LineColor", Value=getRGB("FFAA00"))
        if sURL:
            xPropertyURL = PropertyValue(Name="FullCommentURL", Value=sURL)
            xErr.aProperties = (xPropertyURL,)
        else:
            xErr.aProperties = ()
        return xErr

    def _createErrorAsDict (self, nStart, nEnd, sLineId, sRuleId, sOption, sMessage, lSugg, sURL, bContext):
        dErr = {
            "nStart": nStart,
            "nEnd": nEnd,
            "sLineId": sLineId,
            "sRuleId": sRuleId,
            "sType": sOption  if sOption  else "notype",
            "sMessage": sMessage,
            "aSuggestions": lSugg,
            "URL": sURL
        }
        if bContext:
            dErr['sUnderlined'] = self.sSentence0[nStart:nEnd]
            dErr['sBefore'] = self.sSentence0[max(0,nStart-80):nStart]
            dErr['sAfter'] = self.sSentence0[nEnd:nEnd+80]
        return dErr

    def _expand (self, sText, nTokenOffset, nLastToken):
        #print("*", sText)
        for m in re.finditer(r"\\(-?[0-9]+)", sText):
            if m.group(1)[0:1] == "-":
                sText = sText.replace(m.group(0), self.lToken[nLastToken+int(m.group(1))+1]["sValue"])
            else:
                sText = sText.replace(m.group(0), self.lToken[nTokenOffset+int(m.group(1))]["sValue"])
        #print(">", sText)
        return sText

    def rewriteText (self, sText, sRepl, iGroup, m, bUppercase):
        "text processor: write <sRepl> in <sText> at <iGroup> position"
        nLen = m.end(iGroup) - m.start(iGroup)
        if sRepl == "*":
            sNew = " " * nLen
        elif sRepl == "_":
            sNew = sRepl + " " * (nLen-1)
        elif sRepl[0:1] == "=":
            sNew = globals()[sRepl[1:]](sText, m)
            sNew = sNew + " " * (nLen-len(sNew))
            if bUppercase and m.group(iGroup)[0:1].isupper():
                sNew = sNew.capitalize()
        else:
            sNew = m.expand(sRepl)
            sNew = sNew + " " * (nLen-len(sNew))
        return sText[0:m.start(iGroup)] + sNew + sText[m.end(iGroup):]

    def _tagAndPrepareTokenForRewriting (self, sWhat, nTokenRewriteStart, nTokenRewriteEnd, nTokenOffset, nLastToken, bCaseSvty, bDebug):
        "text processor: rewrite tokens between <nTokenRewriteStart> and <nTokenRewriteEnd> position"
        if bDebug:
            print("   START:", nTokenRewriteStart, "END:", nTokenRewriteEnd)
        if sWhat == "*":
            # purge text
            if nTokenRewriteEnd - nTokenRewriteStart == 0:

                    if not sValue or sValue == "*":
                        self.lToken[i]["bToRemove"] = True
                    else:
                        if bUppercase:
                            sValue = sValue[0:1].upper() + sValue[1:]
                        self.lToken[i]["sNewValue"] = sValue

    def rewrite (self, bDebug=False):
    def rewriteFromTags (self, bDebug=False):
        "rewrite the sentence, modify tokens, purge the token list"
        if bDebug:
            print("REWRITE")
        lNewToken = []
        nMergeUntil = 0
        dTokenMerger = None
        for iToken, dToken in enumerate(self.lToken):

                    exit()
        if bDebug:
            print("  TEXT REWRITED:", self.sSentence)
        self.lToken.clear()
        self.lToken = lNewToken


#### common functions

def option (sOpt):
    "return True if option <sOpt> is active"
    return _dOptions.get(sOpt, False)


#### Functions to get text outside pattern scope

# warning: check compile_rules.py to understand how it works

_zNextWord = re.compile(r" +(\w[\w-]*)")
_zPrevWord = re.compile(r"(\w[\w-]*) +$")

def nextword (s, iStart, n):
    "get the nth word of the input string or empty string"
    m = re.match("(?: +[\\w%-]+){" + str(n-1) + "} +([\\w%-]+)", s[iStart:])
    if not m:
        return None
    return (iStart+m.start(1), m.group(1))


def prevword (s, iEnd, n):
    "get the (-)nth word of the input string or empty string"
    m = re.search("([\\w%-]+) +(?:[\\w%-]+ +){" + str(n-1) + "}$", s[:iEnd])
    if not m:
        return None
    return (m.start(1), m.group(1))


def nextword1 (s, iStart):
    "get next word (optimization)"
    m = _zNextWord.match(s[iStart:])
    if not m:
        return None
    return (iStart+m.start(1), m.group(1))


def prevword1 (s, iEnd):
    "get previous word (optimization)"
    m = _zPrevWord.search(s[:iEnd])
    if not m:
        return None
    return (m.start(1), m.group(1))


def look (s, sPattern, sNegPattern=None):
    "seek sPattern in s (before/after/fulltext), if sNegPattern not in s"
    if sNegPattern and re.search(sNegPattern, s):
        return False
    if re.search(sPattern, s):
        return True
    return False


def look_chk1 (dTokenPos, s, nOffset, sPattern, sPatternGroup1, sNegPatternGroup1=None):
    "returns True if s has pattern sPattern and m.group(1) has pattern sPatternGroup1"
    m = re.search(sPattern, s)
    if not m:
        return False
    try:
        sWord = m.group(1)
        nPos = m.start(1) + nOffset
    except:
        return False
    if sNegPatternGroup1:
        return morphex(dTokenPos, (nPos, sWord), sPatternGroup1, sNegPatternGroup1)
    return morph(dTokenPos, (nPos, sWord), sPatternGroup1, False)


#### Analyse groups for regex rules

def displayInfo (dTokenPos, tWord):
    "for debugging: retrieve info of word"
    if not tWord:
        echo("> nothing to find")
        return True
    lMorph = _oSpellChecker.getMorph(tWord[1])
    if not lMorph:
        echo("> not in dictionary")
        return True
    print("TOKENS:", dTokenPos)
    if tWord[0] in dTokenPos and "lMorph" in dTokenPos[tWord[0]]:
        echo("DA: " + str(dTokenPos[tWord[0]]["lMorph"]))
    echo("FSA: " + str(lMorph))
    return True


def morph (dTokenPos, tWord, sPattern, sNegPattern="", bNoWord=False):
    "analyse a tuple (position, word), returns True if not sNegPattern in word morphologies and sPattern in word morphologies (disambiguation on)"
    if not tWord:
        return bNoWord
    lMorph = dTokenPos[tWord[0]]["lMorph"]  if tWord[0] in dTokenPos and "lMorph" in dTokenPos[tWord[0]]  else _oSpellChecker.getMorph(tWord[1])
    if not lMorph:
        return False
    # check negative condition
    if sNegPattern:
        if sNegPattern == "*":
            # all morph must match sPattern
            zPattern = re.compile(sPattern)
            return all(zPattern.search(sMorph)  for sMorph in lMorph)
        else:
            zNegPattern = re.compile(sNegPattern)
            if any(zNegPattern.search(s)  for s in lMorph):
                return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(s)  for s in lMorph)


def analyse (sWord, sPattern, sNegPattern=""):
    "analyse a word, returns True if not sNegPattern in word morphologies and sPattern in word morphologies (disambiguation off)"
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph:
        return False
    # check negative condition
    if sNegPattern:
        if sNegPattern == "*":
            zPattern = re.compile(sPattern)
            return all(zPattern.search(sMorph)  for sMorph in lMorph)
        else:
            zNegPattern = re.compile(sNegPattern)
            if any(zNegPattern.search(s)  for s in lMorph):
                return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(s)  for s in lMorph)


#### Analyse tokens
#### Analyse tokens for graph rules

def g_value (dToken, sValues, nLeft=None, nRight=None):
    "test if <dToken['sValue']> is in sValues (each value should be separated with |)"
    sValue = "|"+dToken["sValue"]+"|"  if nLeft is None  else "|"+dToken["sValue"][slice(nLeft, nRight)]+"|"
    if sValue in sValues:
        return True
    if dToken["sValue"][0:2].istitle(): # we test only 2 first chars, to make valid words such as "Laissez-les", "Passe-partout".

        return lToken[0]
    if i >= len(lToken):
        return lToken[-1]
    return lToken[i]



#### Disambiguator
#### Disambiguator for regex rules

def select (dTokenPos, nPos, sWord, sPattern, lDefault=None):
    "Disambiguation: select morphologies of <sWord> matching <sPattern>"
    if not sWord:
        return True
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph or len(lMorph) == 1:
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dTokenPos[nPos]["lMorph"] = lSelect
    elif lDefault:
        dTokenPos[nPos]["lMorph"] = lDefault
    return True


def exclude (dTokenPos, nPos, sWord, sPattern, lDefault=None):
    "Disambiguation: exclude morphologies of <sWord> matching <sPattern>"
    if not sWord:
        return True
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    lMorph = _oSpellChecker.getMorph(sWord)
    if not lMorph or len(lMorph) == 1:
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if not re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dTokenPos[nPos]["lMorph"] = lSelect
    elif lDefault:
        dTokenPos[nPos]["lMorph"] = lDefault
    return True


def define (dTokenPos, nPos, lMorph):
    "Disambiguation: set morphologies of token at <nPos> with <lMorph>"
    if nPos not in dTokenPos:
        print("Error. There should be a token at this position: ", nPos)
        return True
    dTokenPos[nPos]["lMorph"] = lMorph
    return True


#### Disambiguation for graph rules

def g_select (dToken, sPattern, lDefault=None):
    "select morphologies for <dToken> according to <sPattern>, always return True"
    lMorph = dToken["lMorph"]  if "lMorph" in dToken  else _oSpellChecker.getMorph(dToken["sValue"])
    if not lMorph or len(lMorph) == 1:
        if lDefault:
            dToken["lMorph"] = lDefault