Examples with ITextRegion org.eclipse.xtext.util.ITextRegion used on opensource projects

Example 31 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class AbstractParseTreeConstructor method write.

protected ITextRegion write(AbstractToken token, WsMergerStream out, ITextRegion location) throws IOException {
    ITextRegion currentLocation = location;
    INode node = token.getNode();
    if (node != null) {
        currentLocation = currentLocation.merge(node.getTextRegion());
    }
    if (!token.getTokensForSemanticChildren().isEmpty()) {
        for (AbstractToken t : token.getTokensForSemanticChildren()) currentLocation = write(t, out, currentLocation);
    } else {
        if (token instanceof CommentToken)
            out.writeComment((ILeafNode) node);
        else {
            String val = token.serialize(node);
            if (val != null) {
                if (token instanceof AssignmentToken)
                    out.writeSemantic(((AssignmentToken) token).getAssignmentElement(), val, node);
                else
                    out.writeSemantic(token.getGrammarElement(), val, node);
            }
        }
    }
    return currentLocation;
}

Example 32 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class AbstractParseTreeConstructor method serializeSubtree.

@Override
public TreeConstructionReport serializeSubtree(EObject object, ITokenStream out) throws IOException {
    TreeConstructionReportImpl report = createReport(object);
    AbstractToken root = serialize(object, report);
    Set<ICompositeNode> roots = Sets.newHashSet();
    Map<EObject, AbstractToken> obj2token = Maps.newHashMap();
    collectRootsAndEObjects(root, obj2token, roots);
    // dump("", root);
    Map<ILeafNode, EObject> comments = commentAssociater.associateCommentsWithSemanticEObjects(object, roots);
    for (ICompositeNode r : roots) assignNodesByMatching(obj2token, r, comments);
    WsMergerStream wsout = new WsMergerStream(out);
    // dump("", root);
    // System.out.println(EmfFormatter.objToStr(roots.iterator().next(),
    // ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_LENGTH,
    // ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_OFFSET,
    // ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_LINE, ParsetreePackage.Literals.ABSTRACT_NODE__PARENT));
    ITextRegion previousLocation = ITextRegion.EMPTY_REGION;
    initStream(root, wsout);
    previousLocation = write(root, wsout, previousLocation);
    wsout.flush();
    report.setPreviousLocation(previousLocation);
    return report;
}

Example 33 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProvider method getTokenReplaceRegion.

public ReplaceRegion getTokenReplaceRegion(String changedText, ReplaceRegion replaceRegion) {
    int lengthDelta = replaceRegion.getText().length() - replaceRegion.getLength();
    ITextRegion tokenRegion = getTokenRegion(changedText, new TextRegion(replaceRegion.getOffset(), replaceRegion.getText().length()));
    if (tokenRegion.getOffset() == replaceRegion.getOffset() && tokenRegion.getLength() == replaceRegion.getText().length())
        return replaceRegion;
    else
        return new ReplaceRegion(tokenRegion.getOffset(), tokenRegion.getLength() - lengthDelta, changedText.substring(tokenRegion.getOffset(), tokenRegion.getOffset() + tokenRegion.getLength()));
}

Example 34 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProvider method getTokenRegion.

public ITextRegion getTokenRegion(String text, ITextRegion region) {
    Lexer lexer = lexerProvider.get();
    lexer.setCharStream(new ANTLRStringStream(text));
    int currentStart = 0;
    int currentEnd = 0;
    CommonToken nextToken = (CommonToken) lexer.nextToken();
    int regionStart = region.getOffset();
    int regionEnd = regionStart + region.getLength();
    while (nextToken != Token.EOF_TOKEN && currentEnd <= regionStart) {
        currentStart = nextToken.getStartIndex();
        currentEnd = nextToken.getStopIndex() + 1;
        nextToken = (CommonToken) lexer.nextToken();
    }
    // nextToken is either EOF or the first token that follows the start of the given region
    while (nextToken != Token.EOF_TOKEN && currentEnd < regionEnd) {
        currentEnd = nextToken.getStopIndex() + 1;
        nextToken = (CommonToken) lexer.nextToken();
    }
    if (currentStart != regionStart || currentEnd != regionEnd)
        return new TextRegion(currentStart, currentEnd - currentStart);
    else
        return region;
}

Example 35 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class AbstractTraceRegionToString method render.

protected List<String> render(AbstractTraceRegionToString.File file, int width) {
    try {
        String text = file.uri == null ? getLocalText() : getRemoteText(file.uri);
        ITextRegion localOrRemoteFrame = file.uri == null ? getLocalFrame() : getRemoteFrame(file.uri);
        ITextRegion frame = localOrRemoteFrame == null ? new TextRegion(0, text.length()) : localOrRemoteFrame;
        int last = frame.getOffset();
        StringBuilder result = new StringBuilder();
        for (Map.Entry<Integer, Collection<Insert>> e : sortBy(toList(index(filter(file.inserts, i -> i.offset >= frame.getOffset() && i.offset <= (frame.getOffset() + frame.getLength())), i -> i.offset).asMap().entrySet()), i -> i.getKey())) {
            int offset = e.getKey().intValue();
            result.append(text.substring(last, offset));
            result.append(render(e.getValue(), width));
            last = offset;
        }
        int end = frame.getOffset() + frame.getLength();
        if (last < end) {
            result.append(text.substring(last, end));
        }
        return CharStreams.readLines(new StringReader(result.toString()));
    } catch (IOException t) {
        throw new RuntimeIOException(t);
    }
}