Examples of org.htmlparser.scanners.ImageScanner

org.htmlparser.scanners.ImageScanner
Scans for the Image Tag. This is a subclass of TagScanner, and is called using a variant of the template method. If the evaluate() method returns true, that means the given string contains an image tag. Extraction is done by the scan method thereafter by the user of this class.

    {
        createParser(
            "<IMG SRC=\"../abc/def/mypic.jpg\">",
            "http://www.yahoo.com/ghi?abcdefg");
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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            imageTag.getImageURL());
    }


    public void testEvaluate()
    {
        ImageScanner scanner = new ImageScanner("-i", new LinkProcessor());
        boolean retVal = scanner.evaluate("   img ", null);
        assertEquals(
            "Evaluation of IMG tag",
            new Boolean(true),
            new Boolean(retVal));
    }

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                    "img width=638 height=53 border=0 usemap=\"#m\" src=http://us.a1.yimg.com/us.yimg.com/i/ww/m5v5.gif alt=Yahoo",
                    ""));
        String link =
            "img width=638 height=53 border=0 usemap=\"#m\" src=http://us.a1.yimg.com/us.yimg.com/i/ww/m5v5.gif alt=Yahoo";
        String url = "c:\\cvs\\html\\binaries\\yahoo.htm";
        ImageScanner scanner = new ImageScanner("-i", new LinkProcessor());
        assertEquals(
            "Extracted Image Locn",
            "http://us.a1.yimg.com/us.yimg.com/i/ww/m5v5.gif",
            scanner.extractImageLocn(tag, url));
    }

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        createParser(
            "<IMG width=1 height=1 alt=\"a\">",
            "http://www.yahoo.com/ghi?abcdefg");


        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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    public void testRelativeImageScan() throws ParserException
    {
        createParser("<IMG SRC=\"mypic.jpg\">", "http://www.yahoo.com");


        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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    public void testRelativeImageScan2() throws ParserException
    {
        createParser("<IMG SRC=\"abc/def/mypic.jpg\">", "http://www.yahoo.com");
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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    {
        createParser(
            "<IMG SRC=\"../abc/def/mypic.jpg\">",
            "http://www.yahoo.com/ghi");
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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    {
        createParser(
            "<IMG SRC=\"../abc/def/Hello World.jpg\">",
            "http://www.yahoo.com/ghi");
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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        createParser(
            "<IMG SRC=\"../abc/def/Hello \r\nWorld.jpg\">",
            "http://www.yahoo.com/ghi");
        Parser.setLineSeparator("\r\n");
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        parseAndAssertNodeCount(1);
        assertTrue(
            "Node identified should be HTMLImageTag",
            node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag) node[0];

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            "<small><a href=s/5926>Air</a>, <a href=s/5927>Hotel</a>, <a href=s/5928>Vacations</a>, <a href=s/5929>Cruises</a></small></td><td align=center><a href=\"http://rd.yahoo.com/M=218794.2020165.3500581.220161/D=yahoo_top/S=2716149:NP/A=1041273/?http://adfarm.mediaplex.com/ad/ck/990-1736-1039-211\" target=\"_top\"><img width=230 height=33 src=\"http://us.a1.yimg.com/us.yimg.com/a/co/columbiahouse/4for49Freesh_230x33_redx2.gif\" alt=\"\" border=0></a></td><td nowrap align=center width=215>Find your match on<br><a href=s/2734><b>Yahoo! Personals</b></a></td></tr><tr><td colspan=3 align=center><input size=30 name=p>\n"
                + "<input type=submit value=Search> <a href=r/so>advanced search</a></td></tr></table><table border=0 cellspacing=0 cellpadding=3 width=640><tr><td nowrap align=center><table border=0 cellspacing=0 cellpadding=0><tr><td><a href=s/5948><img src=\"http://us.i1.yimg.com/us.yimg.com/i/ligans/klgs/eet.gif\" width=20 height=20 border=0></a></td><td> &nbsp; &nbsp; <a href=s/1048><b>Yahooligans!</b></a> - <a href=s/5282>Eet & Ern</a>, <a href=s/5283>Games</a>, <a href=s/5284>Science</a>, <a href=s/5285>Sports</a>, <a href=s/5286>Movies</a>, <a href=s/1048>more</a> &nbsp; &nbsp; </td><td><a href=s/5948><img src=\"http://us.i1.yimg.com/us.yimg.com/i/ligans/klgs/ern.gif\" width=20 height=20 border=0></a></td></tr></table></td></tr><tr><td nowrap align=center><small><b>Shop</b>&nbsp;\n",
            "http://www.yahoo.com");
        Node[] node = new Node[10];
        // Register the image scanner
        parser.addScanner(new ImageScanner("-i", new LinkProcessor()));
        int i = 0;
        Node thisNode;
        for (NodeIterator e = parser.elements(); e.hasMoreNodes();)
        {
            thisNode = (Node) e.nextNode();

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Related Classes of org.htmlparser.scanners.ImageScanner

org.htmlparser.tags.ImageTag

org.htmlparser.tests.FunctionalTests

org.htmlparser.tests.scannersTests.ImageScannerTest

org.htmlparser.tests.tagTests.ImageTagTest

org.htmlparser.util.LinkProcessor

org.htmlparser.util.ParserException

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