From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@9fans.net
Date: Mon, 27 Feb 2012 09:53:11 +0000
From: Mohanasundaram VIT <sunsoftmohan@gmail.com>
Message-ID: <199d7d8a-c02f-4b21-bb9b-c9be189024bc@w27g2000yqm.googlegroups.com>
Content-Type: text/plain; charset=ISO-8859-1
Subject: [9fans] Config File parsing
Topicbox-Message-UUID: 64d87338-ead7-11e9-9d60-3106f5b1d025

global{
    verb
    test
    rl0
    rand (or) rand =0      [Two cases]
}

thread{
    frac_value = (0.2,(0.1,0.5))
    random_thread

}
OUTPUT should be this:

If i give the above input to lex and yacc, based upon the checking of
[ rand (or) rand=0 ]

if it is "rand", then it should print as " verb test rl0 rand
frac_value:L=0.1 frac_value:H=0.5"
if it is "rand=0", then it should print as " verb test rl0 rand=0
frac_value=0.2".
For this could someone please tell me how to write a lex and yacc
program.