Cobra (programming language)
{{Short description|Discontinued programming language}}
{{Infobox programming language
| name = Cobra
| logo =
| paradigm = Multi-paradigm: object-oriented
| discontinued = yes
| year = {{Start date and age|2006}}
| designer = Charles Esterbrook
| developer = Cobra Language LLC
| latest_release_version = 0.9.6
| latest_release_date = {{Start date and age|2013|12|23}}
| latest_test_version =
| latest_test_date =
| typing = strong, static, dynamic, inferred
| influenced_by =
Python, Eiffel, C#, Objective-C
| operating_system = Microsoft .NET, Mono
|
| website = {{url|http://cobra-language.com/}}
| license = MIT
| file_ext = .cobra
}}
{{Portal|Free and open-source software}}
Cobra is a discontinued general-purpose, object-oriented programming language.{{cite web|url=http://cobra-language.com|title=The Cobra Programming Language|publisher=Cobra Language LLC|accessdate=2012-09-26}} Cobra is designed by Charles Esterbrook, and runs on the Microsoft .NET and Mono platforms.{{cite video |people=Charles Esterbrook |date=Jan 28, 2008 |title=Lang.NET Symposium 2008 – The Cobra Programming Language |url=https://www.facultyresourcecenter.com/curriculum/pfv.aspx?ID=7259 |format=wmv |publisher=Microsoft |accessdate=2010-08-31 |archive-url=https://web.archive.org/web/20090326203941/http://www.facultyresourcecenter.com/curriculum/pfv.aspx?ID=7259 |archive-date=March 26, 2009 |url-status=dead }} It is strongly influenced by Python, C#, Eiffel, Objective-C, and other programming languages.{{cite news|url=http://www.zdnet.co.uk/news/application-development/2008/03/05/cobra-takes-a-bite-at-open-source-39362140/|title=Cobra takes a bite at open source |last=Bridgwater|first=Adrian|date=5 March 2008|work=ZDNet UK|accessdate=2010-08-31}} It supports both static and dynamic typing.{{cite journal|last=Neward|first=Ted|date=June 2009|title=Reaping the Benefits of Cobra|journal=MSDN Magazine|url=http://msdn.microsoft.com/en-us/magazine/dd882513.aspx}}{{cite journal|last=Erickson|first=Jonathan|date=April 2008|title=Was George Costanza a Computer Programmer?|journal=Dr. Dobb's Journal|url=http://www.ddj.com/architect/207400254}} It has support for unit tests and contracts. It has lambda expressions, closures, list comprehensions, and generators.{{cite journal|last=Morris|first=Richard|date=April 2010|title=Chuck Esterbrook: Geek of the Week|journal=Simple-talk|url=http://www.simple-talk.com/opinion/geek-of-the-week/chuck-esterbrook-geek-of-the-week/}}
Cobra is an open-source project; it was released under the MIT License on February 29, 2008.{{cite news|url=http://www.infoworld.com/d/developer-world/cobra-language-slithering-open-source-202|title=Cobra language slithering to open source|last=Krill|first=Paul|date=Feb 7, 2008|work=InfoWorld|accessdate=2010-08-31}}{{cite web|url=http://cobra-language.com/downloads/source/ |title=The Cobra Programming Language |accessdate=2008-02-29|publisher=Cobra Language LLC}}
Features
;Object-oriented:
:* Namespaces
:* Classes, interfaces, structs, extensions, enumerations
:* Methods, properties, indexers
:* Mixins, extension methods
:* Generics, attributes
;Quality control:
:* Compile-time nil-tracking
;Expressiveness:
:* Static and dynamic binding
:* List, dictionary, and set literals
:* in and implies operator
:* for expressions
:* Slicing
:* Interpolated strings
:* Compile-time type inference
:* Lambdas and closures
;General productivity:
:* Postmortem exception report
;Scripting conveniences:
:* Clean syntax
:* Dynamic binding
:* One-step run
:* Shebang line (#!)
;Miscellaneous:
:* Documentation tool (cobra -doc)
:* Syntax highlighting tool (cobra -highlight)
Examples
The following examples can be run from a file using cobra <filename>.
=[["Hello, World!" program|Hello World]]=
class Hello
def main
print 'HELLO WORLD'
=A simple class=
class Person
var _name as String
var _age as int
cue init(name as String, age as int)
_name, _age = name, age
def toString as String is override
return 'My name is [_name] and I am [_age] years old.'
References
{{Reflist}}
External links
- {{Official website|http://cobra-language.com}}
- [http://cobralang.blogspot.com/ The Cobra blog] by Charles Esterbrook
- [http://cobra-language.com/forums/viewforum.php?f=3 Cobra News Index]
{{Common Language Infrastructure}}
Category:.NET programming languages
Category:Object-oriented programming languages