##Compiler Design concepts in C##
1.Implementation of Lexical Analyser in C
2.Implementation of Lexical Analyser in Lex tool
3.A very simple Implementation of removing Left REcursion from a grammar(only of form A->A(alpha)|(Beta) can be extended for general cases also)
4.Calculator using LEX and YACC(For Arithmetic, Relational, Bool and Conditional operations)