re2c software package provides tool for generating fast C-based recognizers, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install re2c
re2c is installed in your system.
Make ensure the re2c package were installed using the commands given below,
$ sudo dpkg-query -l | grep re2c *
You will get with re2c package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | re2c |
| Version | 0.13.5-1build2 |
| Description | tool for generating fast C-based recognizers |
| Sub Section | devel |