antlr software package provides language tool for constructing recognizers, compilers etc, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install antlr
antlr is installed in your system.
Make ensure the antlr package were installed using the commands given below,
$ sudo dpkg-query -l | grep antlr *
You will get with antlr package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | antlr |
| Version | 2.7.7+dfsg-3 |
| Description | language tool for constructing recognizers, compilers etc |
| Sub Section | devel |