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The Basic ARithmetic Expression Evaluator based on Stacks - The project consists of receiving mathematical expressions and returning the results. Project developed in C/C++

Makefile 0.52% C++ 99.48%

bares's Introduction

Bares - Basic ARithmetic Expression Evaluator based on Stacks

Autor
Lucas Lima Marques de Oliveira

Introdução

The Basic ARithmetic Expression Evaluator based on Stacks:

  • constantes numéricas inteiras (-32.768 a 32.767)
  • operadores (+, -, /, *, ^, %)
  • parênteses

Descrição

O programa receberá através de um arquivo uma ou mais expressões e deverá conferir se as expressões estão corretas (de acordo com a gramática EBNF (Extended Backus-Naur Form)), e imprimir um resultado sendo ele correto (com o valor resultante da expressão), ou incorreto (com o erro específico).

Gramática

A gramática que será utilizada no programa BARES :

<expr>            := <term>,{ ("+"|"-"),<term> };
<term>            := "(",<expr>,")" | <integer>;
<integer>         := 0 | ["-"],<natural_number>;
<natural_number>  := <digit_excl_zero>,{<digit>};
<digit_excl_zero> := "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9";
<digit>           := "0"| <digit_excl_zero>;

Compilação

Para compilar o programa Bares:

	$ make

Execução

Para executar o programa Bares:

	$ ./Bares

Para entra com os dados atraves de um arquivo:

	$ ./Bares <arquivo_de_entrada

Para entra com os dados atraves de um arquivo e exportar para outro arquivo:

	$ ./Bares <arquivo_de_entrada >arquivo_de_saida

Co-autor

Parte do codigo foi desenvolvido pelo professor de Linguagem de Programação Basica I, Selan R. dos Santos.

Link

link para o projeto BARES no GitLab BARES.

bares's People

Contributors

limalucas96 avatar

Watchers

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