[HACKERS] List of table names of a DB

[Deepak S]

Hello, I am unable to find the function which retrieves the 'list of names of 
the tables' used in a DB. 
Reason: I need a mechanism by which I can extract the names of the tables used 
in a query which has been parsed. My plan is to check for a match of each word 
in the query with a list of names of the tables used in the current DB so that 
each hit confirms a 'table name' in the query in most cases.
Kindly help.Thanks in advance.
Deepak