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

Example 11 with ITextRegion

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

the class FlexTokenRegionProviderTest method testTokenSplit.

@Test
public void testTokenSplit() throws Exception {
    String model = " a b ";
    ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(model, new TextRegion(2, 1));
    assertEquals(2, tokenRegion.getOffset());
    assertEquals(1, tokenRegion.getLength());
}

Example 12 with ITextRegion

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

the class FlexTokenRegionProvider method getTokenRegion.

@Override
public ITextRegion getTokenRegion(String text, ITextRegion region) {
    try {
        InternalFlexer flexer = flexerFactory.createFlexer(new StringReader(text));
        int token = flexer.advance();
        int prevStart = 0;
        int nextStart = flexer.getTokenLength();
        final int regionStartOffset = region.getOffset();
        final int regionEnd = regionStartOffset + region.getLength();
        while (token != Token.EOF && nextStart <= regionStartOffset) {
            prevStart = nextStart;
            token = flexer.advance();
            nextStart += flexer.getTokenLength();
        }
        while (token != Token.EOF && nextStart < regionEnd) {
            token = flexer.advance();
            nextStart += flexer.getTokenLength();
        }
        return new TextRegion(prevStart, nextStart - prevStart);
    } catch (IOException e) {
        // cannot happen since StringReader doesn't throw IOException
        throw new RuntimeException(e);
    }
}

Example 13 with ITextRegion

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

the class XtendProposalProvider method completeInRichString.

public void completeInRichString(EObject model, RuleCall ruleCall, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
    INode node = context.getCurrentNode();
    ITextRegion textRegion = node.getTextRegion();
    int offset = textRegion.getOffset();
    int length = textRegion.getLength();
    String currentNodeText = node.getText();
    if (currentNodeText.startsWith("\u00BB") && offset + 1 <= context.getOffset() || currentNodeText.startsWith("'''") && offset + 3 <= context.getOffset()) {
        if (context.getOffset() > offset && context.getOffset() < offset + length)
            addGuillemotsProposal(context, acceptor);
    } else if (currentNodeText.startsWith("\u00AB\u00AB")) {
        try {
            IDocument document = context.getViewer().getDocument();
            int nodeLine = document.getLineOfOffset(offset);
            int completionLine = document.getLineOfOffset(context.getOffset());
            if (completionLine > nodeLine) {
                addGuillemotsProposal(context, acceptor);
            }
        } catch (BadLocationException e) {
        // ignore
        }
    }
}

Example 14 with ITextRegion

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

the class XtendJavaDocProposalFactory method getReplacementContextLength.

@Override
protected int getReplacementContextLength(ContentAssistContext context) {
    int replacementOffset = context.getReplaceRegion().getOffset();
    INode currentNode = context.getCurrentNode();
    ITextRegion currentRegion = currentNode.getTextRegion();
    String text = currentNode.getText();
    int index = text.indexOf('}', replacementOffset - currentRegion.getOffset());
    if (index == -1) {
        index = text.indexOf('\n', replacementOffset - currentRegion.getOffset());
    }
    if (index != -1) {
        int indexFromStart = index + currentNode.getOffset();
        return indexFromStart - replacementOffset;
    } else {
        return context.getReplaceContextLength();
    }
}

Example 15 with ITextRegion

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

the class ContentAssistContext method getReplaceContextLength.

/**
 * The length of the region left to the completion offset that is part of the
 * replace region.
 */
public int getReplaceContextLength() {
    if (replaceContextLength == null) {
        int replacementOffset = getReplaceRegion().getOffset();
        ITextRegion currentRegion = getCurrentNode().getTextRegion();
        int replaceContextLength = currentRegion.getLength() - (replacementOffset - currentRegion.getOffset());
        this.replaceContextLength = replaceContextLength;
        return replaceContextLength;
    }
    return replaceContextLength.intValue();
}