Ezhil-Lang

Introduction

எழில்: தமிழ் நிரலாக்க மொழி; முதன்முறை கணிப்பொறி நிரல் எழுதுகிற 
தமிழ் மாணவர்களுக்கு இது உதவும்.

Ezhil-Lang : (Ezhil, is a fun Tamil programming language for K-12) Ezhil is 
a procedural language with dynamic types, like Ruby/Python. Ezhil has a 
pascal-like syntax, with for-end, while-end, if-elseif-else-end statements,
break, continue and def-end for defining functions. Ezhil language is 
implemented in a handwritten scanner and parser using the Python programming 
language. Latest version of Ezhil-Language is v0.75.

Motivations

(English) ஆங்கிலம் அறியாதவர்கள் கணிப்பொறியை இயக்க உதவும் எழில் உங்களுக்கு முதன்முறையாக நிரல்கள் எழுத உதவும் திறமூல (Open Source) மென்பொருள். (Free) இலவசமாக பயன்படுத்தலாம்

Write Code in Tamil! English language is not a pre-requisite Write your first program in Ezhil Free as in Open source

Usage

Currently Ezhil language is under development, and a little rough around the edges. You may still try it out, by going to the git source repository,

$ cd ./ezhil-lang/

and then use one of the three modes,

1. Batch Mode
2. Interactive Mode
3. Web Mode

Batch Mode

$ ./ez ./ezhil_tests/hello.n 
பதிப்பி "வணக்கம்!"
பதிப்பி "எழில் அழைக்கிறது"

வணக்கம்!
எழில் அழைக்கிறது

where you should see the output above. For usage, try,

$ ./ez --help
usage:  [-h] [-debug] [-stdin] [files [files ...]]

positional arguments:
  files

optional arguments:
  -h, --help  show this help message and exit
  -debug      enable debugging information on screen
  -stdin      read input from the standard input

Interactive Mode

$ ./ez
எழில் 1>> 1 + 5
6
எழில் 2>> பதிப்பி "வணக்கம்! எழில் அழைக்கிறது"
வணக்கம்! எழில் அழைக்கிறது
எழில் 3>> exit()

Web Mode

You can also run ezhil as a web service by launching the webserver, $ ./webserver.sh and open the webpage, http://localhost:8080 in google-chrome or firefox, to enter your program and evaluate it.

Python Library

Ezhil Tamil programming Python package can be invoked from within the Python shell or IDLE on Windows, by simply typing,

>>> import ezhil
>>> ezhil.start()

But to do all of this, you need to build and install the Python packages from this source, by,

$ cd ezhil-lang/ && python setup.py build
$ cd ezhil-lang/ && python setup.py install

Installation from Python Package Index is also recommended, following the commands,

$ pip install ezhil

Learn more, and contribute

'''Rosetta Code''', the wiki platform for sharing standard algorithms, in many programming languages, now hosts several algorithms in Ezhil. You can find all of Ezhil programs there via http://rosettacode.org/wiki/Category:Ezhil

Download Ezhil

If you would like to tryout the code, all you need is a python interpreter, and the code from https://github.com/arcturusannamalai/Ezhil-Lang/archive/latest.zip

Interesting features include support for recursion, and an interactive interpreter. Ezhil supports a Turtle module for simple on-screen graphics, similar to LOGO language from 1960s.

References

Read Wikipedia article(s) on Ezhil,

1. (Tamil) http://bit.ly/16MgU6U
2. (English) http://en.wikipedia.org/wiki/Ezhil_%28programming_language%29

Scholarly articles on Ezhil include,

1. M. Annamalai, "Ezhil : A Tamil Programming Language," (2009). http://arxiv.org/abs/0907.4960
2. -do-, "Invitation to Ezhil: A Tamil Programming Language for Early Computer-Science Education," (2013). http://arxiv.org/abs/1308.1733

Development notes

Ezhil project is hosted on Thamizaa project, as well on Ezhil Language Foundation github pages.