Comefrom0x10
************

Comefrom0x10, pronounced "Come from sixteen" and commonly abbreviated to just "Cf0x10" is a programming language dedicated to bringing the awesome power of the ``comefrom`` statement into the modern age. Inspired by `ComeFrom2`_ and `Come Here`_, Comefrom0x10 advances the state of the art by embracing the structured programming movement.

Comefrom0x10 features:

- Named identifiers!
- Structured programming!
- Lexical closure!
- Clean, modern syntax!
- Memory management!

:doc:`Download now! <install>`

.. _ComeFrom2: http://ddr0.github.io/side%20projects/cfl/
.. _Come Here: http://wwwep.stewartsplace.org.uk/languages/comehere/

Hello world
===========

It can't get much simpler::

  'hello world'

If you are coming from another language
=======================================

Cf0x10 will be familiar and easily understood by anyone familiar with languages of equivalent expressiveness, like Perl, Java and MUMPS.

- Built-in types are string and number
- Values zero and the empty string are falsy
- Undefined variables implicitly coerced to a value of the correct type where necessary, so ``n = n + 1`` is ``0 + 1`` when n is undefined
- Assignment is illegal in ``if`` conditions.
- Indentation, blank lines and comments are syntactically significant. *Cf0x10 doesn't throw away your precious code.* But, unlike Python, where spaces versus tabs can create confusion, cf0x10 only allows spaces for indentation.
- No more confusion about case sensitivity: Cf0x10 only allows lowercase identifiers. Of course, this will still be half confusing because string comparison is case-sensitive.
- No need for traditional method overloading because the power of comefrom allows you to use the same block name as many times as you please for different purposes
- Strongishly typed

Best of breed influences
------------------------

- Outputs expressions not otherwise captured, as in PowerShell
- Even less noisy syntax than Python
- Space is an operator, as in CSS
- No fatal errors, as in JavaScript/browser/on error resume next

Why use Comefrom0x10?
=====================

It is well known that reading programs is often harder than writing them. The power of the comefrom statement, however, encourages programmers to avoid deeply-nested control structures and makes cf0x10 programs much easier to read than they are to write. [#]_

Business-friendly licensing, under the `WTFPL`_

Comefrom0x10 programs are, on average, shorter than programs written in other languages. [#]_

Designed from the start with full Unicode support, including astral plane characters (handle emoji with ease). No more mucking about with surrogate pairs, no legacy non-Unicode cruft.

Ready for quantum computing: see :doc:`contributing/cum001-schrodinger`.

.. _WTFPL: http://www.wtfpl.net/

.. toctree::
   :maxdepth: 1
   :caption: Contents:

   install
   tutorial/index
   reference/index
   examples
   patterns
   enterprise
   contributing/index
   about

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.. [#] To the extent permitted by law, the author makes no warranties, express or implied, regarding whether the aforementioned programs are understandable by humans
.. [#] Not necessarily programs of equivalent functionality.