Paste: html extraction by example

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USER MARKS WHAT VALUES TO EXTRACT
<html><title>TITLE</title><body><h2>{HEADING}</h2><p>{COMPANY}<p>{ADDRESS}</html>
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A HTML PAGE TO EXTRACT FROM
<html><title>car providers</title><h2>Fast cars</h2><p>Honda</p><p>Japan</html>
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LOADED TEMPLATE TREE
{[root [] [html [] [head [] [title [] [text [value "TITLE"]]]] [body [] [h2 [] [text [value "{HEADING}"]]] [p [] [text [value "{COMPANY}"]]] [p
[] [text [value "{ADDRESS}"]]]]]]}
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LOADED SAMPLE TREE
{[root [] [html [] [head [] [title [] [text [value "car providers"]]]] [body [] [h2 [] [text [value "Fast cars"]]] [p [] [text [value "Honda"]]]
 [p [] [text [value "Japan"]]]]]]}
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FIXED TEMPLATE HTML:
<html>
    <head>
        <title>TITLE</title>
        </head>
    <body>
        <h2>{HEADING}</h2>
        <p>{COMPANY}</p>
        <p>{ADDRESS}</p>
        </body>
    </html>

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FIXED SAMLe HTML:
<html>
    <head>
        <title>car providers</title>
        </head>
    <body>
        <h2>Fast cars</h2>
        <p>Honda</p>
        <p>Japan</p>
        </body>
    </html>

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BUILD PATH FROM TEMPLATE
[in "root" in "html" in "head" in "title" out _ out _ in "body" in "h2" found "HEADING" out _ in "p" found "COMPANY" out _ in "p" found "ADDRESS
" out _ out _ out _ out _]
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OPTIMIZE PATH TO TEXT: HEADING
[in "root" in "html" in "head" out _ in "body" in "h2" found "HEADING"]
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OPTIMIZE PATH TO TEXT: COMPANY
[in "root" in "html" in "head" out _ in "body" in "h2" found "HEADING" out _ in "p" found "COMPANY"]
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OPTIMIZE PATH TO TEXT: ADDRESS
[in "root" in "html" in "head" out _ in "body" in "h2" found "HEADING" out _ in "p" found "COMPANY" out _ in "p" found "ADDRESS"]
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EXTRACT VALUES FROM SAMPLE BASED ON TEMPLATE:
["HEADING" "Fast cars" "COMPANY" "Honda" "ADDRESS" "Honda"]
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