Lex program to count the number of comment lines in a given C program and eliminate the comments and write into the output file Problem definition: Write a lex code to count the number of comment lines in a given C program. Also, eliminate them and copy the resulting program into a separate file. Structure […]
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Lex Program to count the numbers of lines, words, spaces, and characters in a given statement Problem definition: Write a lex program to recognize lines, words, spaces, and characters in a given statement and display the numbers of lines, words, spaces, and characters on standard output. Structure of LEX Program: %{Definition section%} %% Rules section
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Lex Program to recognize and display comments, numbers, identifiers, and strings in a given statement Problem definition: Write a lex program to recognize comments, numbers, identifiers, and strings in a given statement and display them on standard output. Structure of LEX Program: %{Definition section%} %% Rules section %% User Subroutine section Click here to
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Regular Expressions in LEX and YACC In this article, we will discuss the concept of Regular Expressions LEX and YACC and different LEX actions used while writing LEX programs. Definition of Regular Expressions: A Regular Expression is a pattern description using a “meta” language, a language that you use to describe particular patterns of interest.
Parser-Lexer Communication – LEX and YACC In this article, we will understand how Parser-Lexer (Syntax Analyzer and Lexical Analyzer) Communicates with each other. Introduction to LEX: Lex & YACC are the tools designed for writers of compilers & interpreters. Lex & Yacc helps us write programs that transform structured input. In programs with structured input,
Structure of the LEX program In this article, we will basic concepts of LEX and YACC programs in COmpiler design and Structure of the LEX program. Introduction to LEX: Lex & YACC are the tools designed for writers of compilers & interpreters. Lex & Yacc helps us write programs that transform structured input. In programs
How to Compile & Run LEX / YACC Programs on Windows 8, 10, and 11? In this article, we will understand how to Compile & Run LEX / YACC Programs on Windows 8, 10, and 11? To compile and run LEX/YACC programs in the Windows environment, we need to download and install the Flex 2.5.4a,
Principal Component Analysis Solved Example Principal component analysis (PCA) is a statistical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of linearly uncorrelated variables called principal components. In this article, I will discuss how to find the principal components with a simple
Introduction to Principal component analysis in Machine Learning Principal component analysis (PCA) is a statistical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of linearly uncorrelated variables called principal components. The number of principal components is less than or equal to the
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The complexity of any classification or regression algorithm depends on the number of inputs to the model. This determines the time and space complexity and the necessary number of training examples to train such a classification or regression algorithm. In this article, we discuss what is dimensionality reduction, how dimensionality reduction is implemented, and the
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