Examples with RuleMatchFilter org.languagetool.rules.RuleMatchFilter used on opensource projects

Example 1 with RuleMatchFilter

use of org.languagetool.rules.RuleMatchFilter in project languagetool by languagetool-org.

the class PatternRuleMatcher method match.

@Override
public RuleMatch[] match(AnalyzedSentence sentence) throws IOException {
    List<RuleMatch> ruleMatches = new ArrayList<>();
    AnalyzedTokenReadings[] tokens = sentence.getTokensWithoutWhitespace();
    List<Integer> tokenPositions = new ArrayList<>(tokens.length + 1);
    int patternSize = patternTokenMatchers.size();
    int limit = Math.max(0, tokens.length - patternSize + 1);
    PatternTokenMatcher pTokenMatcher = null;
    int i = 0;
    int minOccurCorrection = getMinOccurrenceCorrection();
    while (i < limit + minOccurCorrection && !(rule.isSentStart() && i > 0)) {
        int skipShiftTotal = 0;
        boolean allElementsMatch = false;
        int firstMatchToken = -1;
        int lastMatchToken = -1;
        int firstMarkerMatchToken = -1;
        int lastMarkerMatchToken = -1;
        int prevSkipNext = 0;
        if (rule.isTestUnification()) {
            unifier.reset();
        }
        tokenPositions.clear();
        int minOccurSkip = 0;
        for (int k = 0; k < patternSize; k++) {
            PatternTokenMatcher prevTokenMatcher = pTokenMatcher;
            pTokenMatcher = patternTokenMatchers.get(k);
            pTokenMatcher.resolveReference(firstMatchToken, tokens, rule.getLanguage());
            int nextPos = i + k + skipShiftTotal - minOccurSkip;
            prevMatched = false;
            if (prevSkipNext + nextPos >= tokens.length || prevSkipNext < 0) {
                // SENT_END?
                prevSkipNext = tokens.length - (nextPos + 1);
            }
            int maxTok = Math.min(nextPos + prevSkipNext, tokens.length - (patternSize - k) + minOccurCorrection);
            for (int m = nextPos; m <= maxTok; m++) {
                allElementsMatch = !tokens[m].isImmunized() && testAllReadings(tokens, pTokenMatcher, prevTokenMatcher, m, firstMatchToken, prevSkipNext);
                if (pTokenMatcher.getPatternToken().getMinOccurrence() == 0) {
                    boolean foundNext = false;
                    for (int k2 = k + 1; k2 < patternSize; k2++) {
                        PatternTokenMatcher nextElement = patternTokenMatchers.get(k2);
                        boolean nextElementMatch = !tokens[m].isImmunized() && testAllReadings(tokens, nextElement, pTokenMatcher, m, firstMatchToken, prevSkipNext);
                        if (nextElementMatch) {
                            // this element doesn't match, but it's optional so accept this and continue
                            allElementsMatch = true;
                            minOccurSkip++;
                            tokenPositions.add(0);
                            foundNext = true;
                            break;
                        } else if (nextElement.getPatternToken().getMinOccurrence() > 0) {
                            break;
                        }
                    }
                    if (foundNext) {
                        break;
                    }
                }
                if (allElementsMatch) {
                    int skipForMax = skipMaxTokens(tokens, pTokenMatcher, firstMatchToken, prevSkipNext, prevTokenMatcher, m, patternSize - k - 1);
                    lastMatchToken = m + skipForMax;
                    int skipShift = lastMatchToken - nextPos;
                    tokenPositions.add(skipShift + 1);
                    prevSkipNext = translateElementNo(pTokenMatcher.getPatternToken().getSkipNext());
                    skipShiftTotal += skipShift;
                    if (firstMatchToken == -1) {
                        firstMatchToken = lastMatchToken - skipForMax;
                    }
                    if (firstMarkerMatchToken == -1 && pTokenMatcher.getPatternToken().isInsideMarker()) {
                        firstMarkerMatchToken = lastMatchToken - skipForMax;
                    }
                    if (pTokenMatcher.getPatternToken().isInsideMarker()) {
                        lastMarkerMatchToken = lastMatchToken;
                    }
                    break;
                }
            }
            if (!allElementsMatch) {
                break;
            }
        }
        if (allElementsMatch && tokenPositions.size() == patternSize) {
            RuleMatch ruleMatch = createRuleMatch(tokenPositions, tokens, firstMatchToken, lastMatchToken, firstMarkerMatchToken, lastMarkerMatchToken);
            if (ruleMatch != null) {
                ruleMatches.add(ruleMatch);
            }
        }
        i++;
    }
    RuleMatchFilter maxFilter = new RuleWithMaxFilter();
    List<RuleMatch> filteredMatches = maxFilter.filter(ruleMatches);
    return filteredMatches.toArray(new RuleMatch[filteredMatches.size()]);
}