[R] about lex/yacc

[Vladimir Eremeev]

These are not functions.
These are separate products (one more is bison), aimed to help in creating
programming language interpreters.
You should know the C programming language and be familiar with the
algorithm theory, the finite state machine theory and with the LALR
grammatics, in order  to successfuly use these products.


elyakhlifi mustapha wrote:
> 
> hello,
> what about these functions lex/yacc which can parse and recognize a
> syntax?
> thanks
> 

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