problem with coding BNF

hi all,

i have problem with coding BNF, so can any body help me with that
i want just small subprogram that chech the syntax error

example of BNF rule:
<program> -><stmts>
<stmts> -> <stmt>|<stmt>;<stmt>
<stmt> -> <var>=<expr>
<var> -> a | b | c | d
<expr> -> <term>+<term>|<term>-<term>
<term> -> <var> | const

where the symbol between< > represent non-terminal rule and other like +, -, = , ;, a, b, c, and d represent terminal symbols and | means OR option.......

this BNF could give such statement like a=b+const

the program should check whether the statement correct or not?

thank you
badr1981Asked:
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jimmackCommented:
Post the code you have written so far, then ask for help with the problem area.
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badr1981Author Commented:
i have not solve this quastion, i am working in large project and this subprogram that i face problem with it..... i don't know how to implement a BNF in java
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PaulFranzCommented:
I would use JavaCC it will do this for you.
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badr1981Author Commented:
how can i use JavaCC for this, i don't have any idea about JavaCC....

can you provide me with more informations about that

thank you
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jimmackCommented:
Just in case PaulFranz isn't available at the moment, search for JavaCC on google.  There's a few links there.
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