Add nicer frontpage

docs/index.md

@@ -1,12 +1,46 @@
-# naylang
+# Naylang
 An interpreter and debugger for the Grace programming language
 
-## Compilation instructions
-`naylang` uses standard out-of-source compilation with CMake. It requires at least version 3 of CMake and a compiler that supports C++14 (for example, GCC6.x).
-When all the dependencies are installed, a simple sequence of commands should suffice to run the tests:
+## What?
+Naylang is the new interpreter, runtime and debugger for a subset of the [Grace Programming Language](http://gracelang.org/applications/).
+It's still a work in progress, but it has some great capabilites already!
 
-[![asciicast](https://asciinema.org/a/6ybls2dd3vm58xgxh5pztasxc.png)](https://asciinema.org/a/6ybls2dd3vm58xgxh5pztasxc)
+## How?
 
-Alternatively, there is a compilation/launch script in the `dists/` folder, for GCC users:
+To use Naylang, just download the executable for the [latest release](https://github.com/blorente/naylang/releases) and start it up in a terminal!
 
-[![asciicast](https://asciinema.org/a/6z28d7sey6csqzoapooyzxylj.png)](https://asciinema.org/a/6z28d7sey6csqzoapooyzxylj)
+If you'd rather compile it from source [click me!](#Compilation instructions)
+
+### Commands
+
+For now, Naylang accepts three kinds of commands:
+
+- `load` (or `l`) `<path>`: Open the file in `<path>`, execute it, and show the resulting environment.
+- `exec `(or `e`) `<code>`: Execute the code and show the resulting environment.
+- `print` (or `p`) `<expression>`: Execute the expression and show the result.
+
+Here's an example execution of Naylang:
+
+[![asciicast](https://asciinema.org/a/eqkmros19kzugc2fy96wo8u12.png)](https://asciinema.org/a/eqkmros19kzugc2fy96wo8u12)
+
+## Want to contribute?
+
+Naylang is written entirely in modern C++14. It uses [ANTLR4](https://antlr.org) for parsing, [CMake](https://cmake.org/) as a build system and [Catch](https://github.com/philsquared/Catch) as a testing framework.
+
+If you'd like to contribute to this project, you are more than welcome to. Feel free to [submit an issue](https://github.com/blorente/naylang/issues/new), fork the [main repo](https://github.com/blorente/naylang) and submit a pull request with your improvements, or even shoot me an email (blorente@ucm.es) if you want some direction on where to begin.
+
+### Compilation instructions
+Naylang uses standard out-of-source compilation with CMake. It requires at least version 3 of CMake and a compiler that supports C++14 (for example, GCC6.x).
+When all the dependencies are installed, and the repo is downloaded, a simple sequence of commands should suffice to run the tests:
+
+```
+cd /root/of/repo
+mkdir build &6 cd build
+cmake ..
+make -j antlr4cpp antlr4cpp_generation_naylang
+cmake ..
+make -j
+cd tests
+chmod +x ./tests
+./tests
+```

interpreter/CMakeLists.txt

@@ -6,10 +6,6 @@ cmake_minimum_required(VERSION 3.0)
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 
-antlr4cpp_process_grammar(console_frontend naylang
-        ${PROJECT_SOURCE_DIR}/grammars/ConsoleFrontendCommands.g4
-        ${PROJECT_SOURCE_DIR}/grammars/ConsoleFrontendCommands.g4)
-
 set(SOURCE_FILES
     src/main.cpp)