Function to remove ALL HTML codes

I have a field to extract from primavera which is in BLOB format in the database and pump it into a view.
we have injected codes to remove the HTML tags such as </> and a few other ASCII stuff ( got the help of a developer on that ACII stuff hence I don't know how to explain pardon me) but we still have surprises like &nbsp and &amp appearing depending on what is entered in primavera.
how do I eliminate ALL html codes? currently the code looks like this:
REPLACE(REPLACE(REGEXP_REPLACE(utl_raw.cast_to_varchar2(dbms_lob.substr(tm.task_memo)), '<[^>]+>'),CHR(13),''),CHR(10),'') AS Narratives
Thank you.

Your welcome, please do not forget to mark it as answered.
If you can examine the string in the database, you can use dump to see which character is at the end of the line.
In this sample I have placed a chr(0) at the end of the string to show it:
Decimal:
select dump('testing'||chr(0),8) from dual;
Output: Typ=1 Len=8: 164,145,163,164,151,156,147,0
Hex:
select dump('testing'||chr(0),16) from dual;
Output: Typ=1 Len=8: 74,65,73,74,69,6e,67,0
Edited by: specdev on 6-aug-2012 5:08
Answered without receiving helpful or correct answer points :-( but we make somebody happy today :-)

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Remove html code from file

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http://www.adobe.com/go/learn_lc_formCalc
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