Monday, 30 September 2013

How to install Flex for linux ( lexical analyser generators) lex part 1

First open the teminal and type
sudo apt-get install flex
        
    

press enter
it will ask a question "do you want to continue" just press "y" and "Enter key"
Now it finished :-)

Introduction to Flex
-------------------------------
Flex is a tool for generating scanner. They are used for buliding compilers and other application.
Lexical analysis
Scanning divides the input to tokens(meaningful chunks).
eg:
alpha=beta+gamma;
The scanner divides them into meaningful chunks
alpha, equal sign, beta, plus sign,gamma,semicolon

This is the basic thing


lex part 2

1 Comments:

abhi said...

its good to be here because it gives an easier path for studying jsp........we would understand jsp as good as our mother tounge

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