Grammalecte  Diff

"""
Grammalecte
Grammar checker engine
"""

import re
import traceback


#import unicodedata
from itertools import chain

from ..graphspell.spellchecker import SpellChecker
from ..graphspell.echo import echo

from .. import text


from . import gc_options


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
    #import lightproof_handler_${implname} as opt
    _bWriterError = True
except ImportError:
    _bWriterError = False


__all__ = [ "lang", "locales", "pkg", "name", "version", "author", \
            "load", "parse", "getSpellChecker", \
            "setOption", "setOptions", "getOptions", "getDefaultOptions", "getOptionsLabels", "resetOptions", "displayOptions", \
            "ignoreRule", "resetIgnoreRules", "reactivateRule", "listRules", "displayRules", "setWriterUnderliningStyle" ]

__version__ = "${version}"


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

# Modules
_rules = None                               # module gc_rules
_rules_graph = None                         # module gc_rules_graph

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


_aIgnoredRules = set()

# Writer underlining style

_bMulticolor = True
_nUnderliningStyle = 0


#### Initialization

def load (sContext="Python", sColorType="aRGB"):
    "initialization of the grammar checker"
    global _oSpellChecker
    global _sAppContext
    global _dOptions
    global _dOptionsColors
    global _oTokenizer
    try:
        _oSpellChecker = SpellChecker("${lang}", "${dic_main_filename_py}", "${dic_community_filename_py}", "${dic_personal_filename_py}")
        _sAppContext = sContext
        _dOptions = gc_options.getOptions(sContext).copy()   # duplication necessary, to be able to reset to default
        _dOptionsColors = gc_options.getOptionsColors(sContext, sColorType)
        _oTokenizer = _oSpellChecker.getTokenizer()
        _oSpellChecker.activateStorage()


    except:
        traceback.print_exc()




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


#### Rules

def reactivateRule (sRuleId):
    "(re)activate rule <sRuleId>"
    _aIgnoredRules.discard(sRuleId)


def listRules (sFilter=None):
    "generator: returns typle (sOption, sLineId, sRuleId)"
    if sFilter:
        try:
            zFilter = re.compile(sFilter)
        except re.error:
            echo("# Error. List rules: wrong regex.")
            sFilter = None
    # regex rules

def displayRules (sFilter=None):
    "display the name of rules, with the filter <sFilter>"
    echo("List of rules. Filter: << " + str(sFilter) + " >>")
    for sOption, sLineId, sRuleId, sType in listRules(sFilter):
        echo("{:<8} {:<10} {:<10} {}".format(sOption, sLineId, sRuleId, sType))


#### Options

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


def setOptions (dOpt):
    "update the dictionary of options with <dOpt>"
    for sKey, bVal in dOpt.items():
        if sKey in _dOptions:
            _dOptions[sKey] = bVal


def getOptions ():
    "return the dictionary of current options"
    return _dOptions


def getDefaultOptions ():
    "return the dictionary of default options"
    return gc_options.getOptions(_sAppContext).copy()


def getOptionsLabels (sLang):
    "return options labels"
    return gc_options.getUI(sLang)


def displayOptions (sLang="${lang}"):
    "display the list of grammar checking options"
    echo("Options:")
    echo("\n".join( [ k+":\t"+str(v)+"\t"+gc_options.getUI(sLang).get(k, ("?", ""))[0]  for k, v  in sorted(_dOptions.items()) ] ))
    echo("")


def resetOptions ():
    "set options to default values"
    global _dOptions
    _dOptions = getDefaultOptions()


def setWriterUnderliningStyle (sStyle="BOLDWAVE", bMulticolor=True):
    "set underlining style for Writer (WAVE, BOLDWAVE, BOLD)"
    global _nUnderliningStyle
    global _bMulticolor
    # https://api.libreoffice.org/docs/idl/ref/FontUnderline_8idl.html
    # WAVE: 10, BOLD: 12, BOLDWAVE: 18 DASH: 5

        _nUnderliningStyle = 5
    else:
        _nUnderliningStyle = 0
    _bMulticolor = bMulticolor


#### Parsing






























def parse (sText, sCountry="${country_default}", bDebug=False, dOptions=None, bContext=False, bFullInfo=False):
    "init point to analyse <sText> and returns an iterable of errors or (with option <bFullInfo>) paragraphs errors and sentences with tokens and errors"
    oText = TextParser(sText)
    return oText.parse(sCountry, bDebug, dOptions, bContext, bFullInfo)

        #for nPos, dToken in self.dTokenPos.items():
        #    s += "{}\t{}\n".format(nPos, dToken)
        return s

    def parse (self, sCountry="${country_default}", bDebug=False, dOptions=None, bContext=False, bFullInfo=False):
        "analyses <sText> and returns an iterable of errors or (with option <bFullInfo>) paragraphs errors and sentences with tokens and errors"
        #sText = unicodedata.normalize("NFC", sText)
        dOpt = dOptions or _dOptions
        bShowRuleId = option('idrule')
        # parse paragraph
        try:
            self.parseText(self.sText, self.sText0, True, 0, sCountry, dOpt, bShowRuleId, bDebug, bContext)
        except:
            raise
        if bFullInfo:
            lParagraphErrors = list(self.dError.values())

                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:
                                            echo("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
                                                self.dSentenceError[nErrorStart] = self.dError[nErrorStart]
                                        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)

        for sLineId, nextNodeKey in dNode.items():
            bCondMemo = None
            for sRuleId in dGraph[nextNodeKey]:
                try:
                    if bDebug:
                        echo("   >TRY: " + sRuleId + " " + sLineId)
                    _, sOption, sFuncCond, cActionType, sWhat, *eAct = _rules_graph.dRule[sRuleId]
                    # Suggestion    [ option, condition, "-", replacement/suggestion/action, iTokenStart, iTokenEnd, cStartLimit, cEndLimit, bCaseSvty, nPriority, sMessage, sURL ]
                    # TextProcessor [ option, condition, "~", replacement/suggestion/action, iTokenStart, iTokenEnd, bCaseSvty ]
                    # Disambiguator [ option, condition, "=", replacement/suggestion/action ]
                    # Tag           [ option, condition, "/", replacement/suggestion/action, iTokenStart, iTokenEnd ]
                    # Immunity      [ option, condition, "!", "",                            iTokenStart, iTokenEnd ]
                    # Test          [ option, condition, ">", "" ]
                    if not sOption or dOptions.get(sOption, False):
                        bCondMemo = not sFuncCond or globals()[sFuncCond](self.lToken, nTokenOffset, nLastToken, sCountry, bCondMemo, self.dTags, self.sSentence, self.sSentence0)
                        if bCondMemo:
                            if cActionType == "-":
                                # 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

                                nTokenEnd = nTokenOffset + eAct[1]  if eAct[1] > 0  else nLastToken + eAct[1]
                                self._tagAndPrepareTokenForRewriting(sWhat, nTokenStart, nTokenEnd, nTokenOffset, nLastToken, eAct[2], bDebug)
                                bChange = True
                                if bDebug:
                                    echo("    TEXT_PROCESSOR: [{}:{}]  > {}".format(self.lToken[nTokenStart]["sValue"], self.lToken[nTokenEnd]["sValue"], sWhat))
                            elif cActionType == "=":
                                # disambiguation
                                globals()[sWhat](self.lToken, nTokenOffset, nLastToken)
                                if bDebug:
                                    echo("    DISAMBIGUATOR: ({})  [{}:{}]".format(sWhat, self.lToken[nTokenOffset+1]["sValue"], self.lToken[nLastToken]["sValue"]))
                            elif cActionType == ">":
                                # we do nothing, this test is just a condition to apply all following actions
                                if bDebug:
                                    echo("    COND_OK")
                            elif cActionType == "/":

        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(lambda s: s[0:1].upper()+s[1:], 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, sOption, sMessage, lSugg, sURL)
        return self._createErrorAsDict(nStart, nEnd, sLineId, sRuleId, sOption, sMessage, lSugg, sURL, 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, sOption, sMessage, lSugg, sURL)
        return self._createErrorAsDict(nStart, nEnd, sLineId, sRuleId, sOption, sMessage, lSugg, sURL, bContext)

        if sRepl == "*":
            sNew = " " * nLen
        elif sRepl == "_":
            sNew = "_" * nLen
        elif sRepl == "@":
            sNew = "@" * nLen
        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):]

            if nTokenRewriteEnd - nTokenRewriteStart == 0:
                self.lToken[nTokenRewriteStart]["sNewValue"] = "_"
            else:
                for i in range(nTokenRewriteStart, nTokenRewriteEnd+1):
                    self.lToken[i]["sNewValue"] = "_"
        else:
            if sWhat.startswith("="):
                sWhat = globals()[sWhat[1:]](self.lToken, nTokenOffset, nLastToken)
            else:
                sWhat = self._expand(sWhat, nTokenOffset, nLastToken)
            bUppercase = bCaseSvty and self.lToken[nTokenRewriteStart]["sValue"][0:1].isupper()
            if nTokenRewriteEnd - nTokenRewriteStart == 0:
                # one token
                if bUppercase:
                    sWhat = sWhat[0:1].upper() + sWhat[1:]

                except KeyError:
                    echo(self)
                    echo(dToken)
        if bDebug:
            echo("  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=""):
    "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 IndexError:
        return False
    return morph(dTokenPos, (nPos, sWord), sPatternGroup1, sNegPatternGroup1)



#### 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
    echo("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)
        zNegPattern = re.compile(sNegPattern)
        if any(zNegPattern.search(sMorph)  for sMorph in lMorph):
            return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(sMorph)  for sMorph 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)
        zNegPattern = re.compile(sNegPattern)
        if any(zNegPattern.search(sMorph)  for sMorph in lMorph):
            return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(sMorph)  for sMorph in lMorph)


#### 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".
        if sValue.lower() in sValues:
            return True
    elif dToken["sValue"].isupper():
        #if sValue.lower() in sValues:
        #    return True
        sValue = "|"+sValue[1:].capitalize()
        if sValue in sValues:
            return True
        sValue = sValue.lower()
        if sValue in sValues:
            return True
    return False


def g_morph (dToken, sPattern, sNegPattern="", nLeft=None, nRight=None, bMemorizeMorph=True):
    "analyse a token, return True if <sNegPattern> not in morphologies and <sPattern> in morphologies"
    if "lMorph" in dToken:
        lMorph = dToken["lMorph"]
    else:
        if nLeft is not None:
            lMorph = _oSpellChecker.getMorph(dToken["sValue"][slice(nLeft, nRight)])
            if bMemorizeMorph:
                dToken["lMorph"] = lMorph
        else:
            lMorph = _oSpellChecker.getMorph(dToken["sValue"])
    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)
        zNegPattern = re.compile(sNegPattern)
        if any(zNegPattern.search(sMorph)  for sMorph in lMorph):
            return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(sMorph)  for sMorph in lMorph)


def g_analyse (dToken, sPattern, sNegPattern="", nLeft=None, nRight=None, bMemorizeMorph=True):
    "analyse a token, return True if <sNegPattern> not in morphologies and <sPattern> in morphologies (disambiguation off)"
    if nLeft is not None:
        lMorph = _oSpellChecker.getMorph(dToken["sValue"][slice(nLeft, nRight)])
        if bMemorizeMorph:
            dToken["lMorph"] = lMorph
    else:
        lMorph = _oSpellChecker.getMorph(dToken["sValue"])
    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)
        zNegPattern = re.compile(sNegPattern)
        if any(zNegPattern.search(sMorph)  for sMorph in lMorph):
            return False
    # search sPattern
    zPattern = re.compile(sPattern)
    return any(zPattern.search(sMorph)  for sMorph in lMorph)


def g_merged_analyse (dToken1, dToken2, cMerger, sPattern, sNegPattern="", bSetMorph=True):
    "merge two token values, return True if <sNegPattern> not in morphologies and <sPattern> in morphologies (disambiguation off)"
    lMorph = _oSpellChecker.getMorph(dToken1["sValue"] + cMerger + dToken2["sValue"])
    if not lMorph:
        return False
    # check negative condition
    if sNegPattern:
        if sNegPattern == "*":
            # all morph must match sPattern
            zPattern = re.compile(sPattern)
            bResult = all(zPattern.search(sMorph)  for sMorph in lMorph)
            if bResult and bSetMorph:
                dToken1["lMorph"] = lMorph
            return bResult
        zNegPattern = re.compile(sNegPattern)
        if any(zNegPattern.search(sMorph)  for sMorph in lMorph):
            return False
    # search sPattern
    zPattern = re.compile(sPattern)
    bResult = any(zPattern.search(sMorph)  for sMorph in lMorph)
    if bResult and bSetMorph:
        dToken1["lMorph"] = lMorph
    return bResult


def g_tag_before (dToken, dTags, sTag):
    "returns True if <sTag> is present on tokens before <dToken>"
    if sTag not in dTags:
        return False
    if dToken["i"] > dTags[sTag][0]:
        return True
    return False


def g_tag_after (dToken, dTags, sTag):
    "returns True if <sTag> is present on tokens after <dToken>"
    if sTag not in dTags:
        return False
    if dToken["i"] < dTags[sTag][1]:
        return True
    return False


def g_tag (dToken, sTag):
    "returns True if <sTag> is present on token <dToken>"
    return "aTags" in dToken and sTag in dToken["aTags"]


def g_meta (dToken, sType):
    "returns True if <sType> is equal to the token type"
    return dToken["sType"] == sType


def g_space_between_tokens (dToken1, dToken2, nMin, nMax=None):
    "checks if spaces between tokens is >= <nMin> and <= <nMax>"
    nSpace = dToken2["nStart"] - dToken1["nEnd"]
    if nSpace < nMin:
        return False
    if nMax is not None and nSpace > nMax:
        return False
    return True


def g_token (lToken, i):
    "return token at index <i> in lToken (or the closest one)"
    if i < 0:
        return lToken[0]
    if i >= len(lToken):
        return lToken[-1]
    return lToken[i]



#### 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:
        echo("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:
        echo("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:
        echo("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):
    "Disambiguation: 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
            #echo("DA:", dToken["sValue"], dToken["lMorph"])
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dToken["lMorph"] = lSelect
    elif lDefault:
        dToken["lMorph"] = lDefault
    #echo("DA:", dToken["sValue"], dToken["lMorph"])
    return True


def g_exclude (dToken, sPattern, lDefault=None):
    "Disambiguation: 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
            #echo("DA:", dToken["sValue"], dToken["lMorph"])
        return True
    lSelect = [ sMorph  for sMorph in lMorph  if not re.search(sPattern, sMorph) ]
    if lSelect:
        if len(lSelect) != len(lMorph):
            dToken["lMorph"] = lSelect
    elif lDefault:
        dToken["lMorph"] = lDefault
    #echo("DA:", dToken["sValue"], dToken["lMorph"])
    return True


def g_add_morph (dToken, lNewMorph):
    "Disambiguation: add a morphology to a token"
    lMorph = dToken["lMorph"]  if "lMorph" in dToken  else _oSpellChecker.getMorph(dToken["sValue"])
    lMorph.extend(lNewMorph)
    dToken["lMorph"] = lMorph
    return True


def g_define (dToken, lMorph):
    "Disambiguation: set morphologies of <dToken>, always return True"
    dToken["lMorph"] = lMorph
    #echo("DA:", dToken["sValue"], lMorph)
    return True


def g_define_from (dToken, nLeft=None, nRight=None):
    "Disambiguation: set morphologies of <dToken> with slicing its value with <nLeft> and <nRight>"
    if nLeft is not None:
        dToken["lMorph"] = _oSpellChecker.getMorph(dToken["sValue"][slice(nLeft, nRight)])
    else:
        dToken["lMorph"] = _oSpellChecker.getMorph(dToken["sValue"])
    return True


def g_change_meta (dToken, sType):
    "Disambiguation: change type of token"
    dToken["sType"] = sType
    return True



#### GRAMMAR CHECKER PLUGINS

${plugins}


#### CALLABLES FOR REGEX RULES (generated code)

${callables}


#### CALLABLES FOR GRAPH RULES (generated code)

${graph_callables}