Examples with FilterExpr org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr used on opensource projects

Example 16 with FilterExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr in project webtools.sourceediting by eclipse.

the class FilterExprTest method test_filterexpressionhc20.

// Simple filter expression involving two complex predicates.
public void test_filterexpressionhc20() throws Exception {
    String inputFile = "/TestSources/emptydoc.xml";
    String xqFile = "/Queries/XQuery/Expressions/SeqExpr/FilterExpr/filterexpressionhc20.xq";
    String resultFile = "/ExpectedTestResults/Expressions/SeqExpr/FilterExpr/filterexpressionhc20.txt";
    String expectedResult = getExpectedResult(resultFile);
    URL fileURL = bundle.getEntry(inputFile);
    loadDOMDocument(fileURL);
    // Get XML Schema Information for the Document
    XSModel schema = getGrammar();
    setupDynamicContext(schema);
    String xpath = extractXPathExpression(xqFile, inputFile);
    String actual = null;
    try {
        compileXPath(xpath);
        ResultSequence rs = evaluate(domDoc);
        actual = buildResultString(rs);
    } catch (XPathParserException ex) {
        actual = ex.code();
    } catch (StaticError ex) {
        actual = ex.code();
    } catch (DynamicError ex) {
        actual = ex.code();
    }
    assertEquals("XPath Result Error " + xqFile + ":", expectedResult, actual);
}

Example 17 with FilterExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit filter expression
 *
 * @param e
 *            is the filter expression.
 * @return a result sequence
 */
// XXX unify with top ?
public Object visit(FilterExpr e) {
    ResultSequence rs = (ResultSequence) e.primary().accept(this);
    // the primary expression
    if (e.predicate_count() == 0)
        return rs;
    Focus original_focus = focus();
    // go through all predicates
    for (Iterator i = e.iterator(); i.hasNext(); ) {
        if (rs.size() == 0)
            break;
        set_focus(new Focus(rs));
        rs = do_predicate((Collection) i.next());
    }
    // restore focus [context switching ;D ]
    set_focus(original_focus);
    return rs;
}

Example 18 with FilterExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method do_predicate.

// do the predicate for all items in focus
private ResultSequence do_predicate(Collection exprs) {
    ResultBuffer rs = new ResultBuffer();
    Focus focus = focus();
    int original_cp = focus.position();
    // check if predicate is single numeric constant
    if (exprs.size() == 1) {
        Expr expr = (Expr) exprs.iterator().next();
        if (expr instanceof XPathExpr) {
            XPathExpr xpe = (XPathExpr) expr;
            if (xpe.next() == null && xpe.slashes() == 0 && xpe.expr() instanceof FilterExpr) {
                FilterExpr fex = (FilterExpr) xpe.expr();
                if (fex.primary() instanceof IntegerLiteral) {
                    int pos = (((IntegerLiteral) fex.primary()).value().int_value()).intValue();
                    if (pos <= focus.last() && pos > 0) {
                        focus.set_position(pos);
                        rs.add(focus.context_item());
                    }
                    focus.set_position(original_cp);
                    return rs.getSequence();
                }
            }
        }
    }
    // go through all elements
    while (true) {
        // do the predicate
        // XXX saxon doesn't allow for predicates to have
        // commas... but XPath 2.0 spec seems to do
        ResultSequence res = do_expr(exprs.iterator());
        // in the sequence
        if (predicate_truth(res))
            rs.add(focus().context_item());
        if (!focus.advance_cp())
            break;
    }
    // restore
    focus.set_position(original_cp);
    return rs.getSequence();
}

Example 19 with FilterExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr in project webtools.sourceediting by eclipse.

the class FilterExprTest method test_filterexpressionhc7.

// Simple filter expression involving the "lt" operator.
public void test_filterexpressionhc7() throws Exception {
    String inputFile = "/TestSources/emptydoc.xml";
    String xqFile = "/Queries/XQuery/Expressions/SeqExpr/FilterExpr/filterexpressionhc7.xq";
    String resultFile = "/ExpectedTestResults/Expressions/SeqExpr/FilterExpr/filterexpressionhc7.txt";
    String expectedResult = getExpectedResult(resultFile);
    URL fileURL = bundle.getEntry(inputFile);
    loadDOMDocument(fileURL);
    // Get XML Schema Information for the Document
    XSModel schema = getGrammar();
    setupDynamicContext(schema);
    String xpath = extractXPathExpression(xqFile, inputFile);
    String actual = null;
    try {
        compileXPath(xpath);
        ResultSequence rs = evaluate(domDoc);
        actual = buildResultString(rs);
    } catch (XPathParserException ex) {
        actual = ex.code();
    } catch (StaticError ex) {
        actual = ex.code();
    } catch (DynamicError ex) {
        actual = ex.code();
    }
    assertEquals("XPath Result Error " + xqFile + ":", expectedResult, actual);
}

Example 20 with FilterExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr in project webtools.sourceediting by eclipse.

the class FilterExprTest method test_filterexpressionhc3.

// Simple filter expression returning a single number.
public void test_filterexpressionhc3() throws Exception {
    String inputFile = "/TestSources/emptydoc.xml";
    String xqFile = "/Queries/XQuery/Expressions/SeqExpr/FilterExpr/filterexpressionhc3.xq";
    String resultFile = "/ExpectedTestResults/Expressions/SeqExpr/FilterExpr/filterexpressionhc3.txt";
    String expectedResult = getExpectedResult(resultFile);
    URL fileURL = bundle.getEntry(inputFile);
    loadDOMDocument(fileURL);
    // Get XML Schema Information for the Document
    XSModel schema = getGrammar();
    setupDynamicContext(schema);
    String xpath = extractXPathExpression(xqFile, inputFile);
    String actual = null;
    try {
        compileXPath(xpath);
        ResultSequence rs = evaluate(domDoc);
        actual = buildResultString(rs);
    } catch (XPathParserException ex) {
        actual = ex.code();
    } catch (StaticError ex) {
        actual = ex.code();
    } catch (DynamicError ex) {
        actual = ex.code();
    }
    assertEquals("XPath Result Error " + xqFile + ":", expectedResult, actual);
}