getting started with lex

Posted by cambr on Stack Overflow See other posts from Stack Overflow or by cambr
Published on 2010-05-13T04:54:35Z Indexed on 2010/05/13 5:04 UTC
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I need to format some hexdump like this:

00010: 02 03 04 05
00020: 02 03 04 08
00030: 02 03 04 08

00010: 02 03 04 05
00020: 02 03 04 05
02 03 04 05
02 03 04 08

to

02 03 04 05
02 03 04 08
02 03 04
02 03 04 05
02 03 04 05
02 03 04 05
02 03 04

a) remove the address fields, if present

b) remove any 08 at the end of a paragraph (followed by an empty line)

c) remove any empty lines

How can this be done using lex? thanks!

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