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397.Text file parser -- How to run a program on many html files to extract useful text?

User: editor -- 2010-01-17          << 396  398 >>
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Type: Text file parser   
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How to run a program on many text files to extract useful text? 
There are many html files, each one contains a subset of following items: Title|Author|Author Affiliation|Source|Abstract|Descriptors|Keywords|Geographic Descriptors|Geographic Region|Accession Number, how can I extract all part of contents and form a text with format "yyy1|yyy2|yyy3|yyy4....|yyy10"(yyyN=blank if corresponding item does not exist) 
Input Sample:
each html file contain a subset of following: 
<dt>Title:</dt><dd xxx>yyy1</dd>  
<dt>Author:</dt><dd xxx>yyy2</dd>  
<dt>Author Affiliation:</dt><dd xxx>yyy3</dd>  
<dt>Source:</dt><dd xxx>yyy4</dd>  
<dt>Abstract:</dt><dd xxx>yyy5</dd>  
<dt>Descriptors:</dt><dd xxx>yyy6</dd>  
<dt>Keywords:</dt><dd xxx>yyy7</dd>  
<dt>Geographic Descriptors:</dt><dd xxx>yyy8</dd>  
<dt>Geographic Region:</dt><dd xxx>yyy9</dd>  
<dt>Accession Number:</dt><dd xxx>yyy10</dd>
Output Sample:
yyy1|yyy2|yyy3|yyy4....|yyy10 (from file1)  
yyy1|yyy2| |yyy4....|yyy10 (from file2)  
yyy1| |yyy3|yyy4....|yyy10 (from file3)  
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
1. ctrl-h open 'Replace' dialog  
* in 'Replace witn Pattern' enter: 
* click "Advanced" page, in "Run Following for each matched Unit" fill: 
* between "Output Page" and "Output File" entry at right bottom, change the symbol ">" to ">> Append" 
2. Click "Batch..." button to open "Batch Runner" window 
3. Drag all html files from windows file explorer to "Batch Runner" window. 
4. Check "Set output file name" option, and change "${FILENAME}" to "result.txt" at the following entry. 
5. Click "Batch Replace" button, all the desired content of html will be extract and put to result.txt.
Download Script:  scripts/

Screenshot 1:  Replace_Window

Screenshot 2:  Replace_Advanced_Window

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