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theory of computation regular expressions cfg file management finite automata string manipulation parsing table bottom up parsing top down parsing context free grammar pda pumping lemma comma delimited length indicator single record access specifiers overloading object oriented indexing structures dynamic order multi-field index (domi) data query operating systems concepts os records buffering btree record disk writing fields operations reading big data final exam notation re dfa tm eclipse python pydev compilers architecture and data structure compilers inroduction turing machine np problems compilers design exam ll1 parser first and follow file stream operations compilers hashing file indexing reclaiming space file stream