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Comprehensive Overview of Lexical Analysis in Programming Languages

Learn how lexical analyzers convert symbols to tokens, remove unnecessary elements, and the main function concepts. Explore inline functions and evaluation during compilation. Discover the role of PRO-C as a C+SQL translator.

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Comprehensive Overview of Lexical Analysis in Programming Languages

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  1. Introduction(continued ) lecture 3

  2. 2. So the lexical analyzer converts symbols to an array of easy to use symbolic constants (TOKENS). 3.Also, it removes spaces and other unnecessary things like comments etc.

  3. And main function: main () {a=1; b=3; Fmax(++a, ++b) // this calls the inline function with incremented //values of a and during compilation Whereas instead of this if we have a call like Mmax(++a, ++b) // this leads to two increments in value of b // as expression replaced is (++a>++b? ++a: ++b) This just takes the passed arguments and replaces them in the expression. Then compilation evaluates it. PRO-C: C+SQL Acts as a translator

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