How To Install re2c on CentOS 7

In this tutorial we learn how to install re2c on CentOS 7. re2c is Tool for generating C-based recognizers from regular expressions

Introduction

In this tutorial we learn how to install re2c on CentOS 7.

What is re2c

re2c is a tool for writing very fast and very flexible scanners. Unlike any other such tool, re2c focuses on generating high efficient code for regular expression matching. As a result this allows a much broader range of use than any traditional lexer offers. And Last but not least re2c generates warning free code that is equal to hand-written code in terms of size, speed and quality.

We can use yum or dnf to install re2c on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install re2c.

Install re2c on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install re2c using yum by running the following command:

sudo yum -y install re2c

Install re2c on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install re2c using dnf by running the following command:

sudo dnf -y install re2c

How To Uninstall re2c on CentOS 7

To uninstall only the re2c package we can use the following command:

sudo dnf remove re2c

References

Summary

In this tutorial we learn how to install re2c on CentOS 7 using yum and dnf.