Chapel - Programming language

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Chapel, aka Cascade High Productivity Language, is an open source programming language created in 2004 by David Callahan and Hans Zima and Brad Chamberlain and John Plevyak.

#61on PLDB

20Years Old

212Repos

Download source code:

git clone https://github.com/chapel-lang/chapel

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Chapel, the Cascade High Productivity Language, is a parallel programming language developed by Cray. It is being developed as part of the Cray Cascade project, a participant in DARPA's High Productivity Computing Systems (HPCS) program, which had the goal of increasing supercomputer productivity by the year 2010. It is being developed as an open source project, under version 2 of the Apache license.. Read more on Wikipedia...

Tags: programming language, arrayLang
Interview with the creators of Chapel: 1.
Chapel is developed on GitHub and has 1,758 stars
There are at least 212 Chapel repos on GitHub
Early development of Chapel happened in Cray Inc.
Python and ZPL and Ada and C# and Java and Fortran and C++ and UPC influenced the design of Chapel
Chapel compiles to C
Chapel is written in Chapel, C++, C, Bash, Make, Python
The Google BigQuery Public Dataset GitHub snapshot shows 50 users using Chapel in 55 repos on GitHub
There are 12,989 members in the Chapel subreddit
There are 11 Project Euler users using Chapel
Explore Chapel snippets on Rosetta Code
Chapel on HOPL
Pygments supports syntax highlighting for Chapel
GitHub supports syntax highlighting for Chapel
Events page for Chapel
Indeed.com has 1 matches for "chapel developer".
chapel-lang.org was registered in 2014
See also: (13 related languages) Ada, C#, C, Fortran, Java, Fortress, UPC, X10, ISBN, X10, Fortress, ZPL, UPC
Read more about Chapel on the web: 1.
3 PLDB concepts link to Chapel: Chapel, cloc, Pygments

Example from hello-world:

writeln("Hello World");

Example from Linguist:

writeln("Hello, world!");    // print 'Hello, world!' to the console

Chapel Keywords

_ align atomic begin break by class cobegin coforall config const continue delete dmapped do domain else enum export extern for forall if in index inline inout iter label let local module new nil on otherwise out param proc record reduce ref return scan select serial single sparse subdomain sync then type union use var when where while yield zip

Language features

Feature	Supported	Example	Token
Case Sensitivity	✓
Binary Literals	✓	// 0[bB][01]+
Integers	✓	// [0-9]+
Floats	✓	// (\d*\.\d+)([eE][+-]?[0-9]+)?i?
Hexadecimals	✓	// 0[xX][0-9a-fA-F]+
Octals	✓	// 0[oO][0-7]+
While Loops	✓	while do
Type Parameters	✓
Type Inference	✓
hasTryCatch	✓	try catch
Switch Statements	✓	select
Structs	✓	record
Strings	✓	"Hello world"	"
Static Typing	✓
Standard Library	✓
References	✓	ref
Range Operator	✓	..
Operator Overloading	✓
MultiLine Comments	✓	/* A comment */	/* */
Print() Debugging	✓		writeln
Module Pattern	✓	module
Line Comments	✓	// A comment	//
Iterators	✓	iter
Inheritance	✓
Hexadecimals	✓
Generics	✓
Functions	✓	proc
Function Overloading	✓
hasForLoops	✓	for
hasForEachLoops	✓	foreach
Floats	✓	real
Type Casting	✓	:
Exceptions	✓	throw throws
hasEscapeCharacters	✓
Enums	✓	enum color { red, green, blue=3 };
hasDynamicSizedArrays	✓
Default Parameters Pattern	✓
Constructors	✓	proc init
Constants	✓	param
Conditionals	✓	if then else
Comments	✓
Classes	✓	class
hasBoundedCheckedArrays	✓
Booleans	✓	bool true false	true false
Bitwise Operators	✓
Binary Literals	✓
Async Await	✓	begin sync
Assignment	✓	=	=
hasArraySlicingSyntax	✓
canReadCommandLineArgs	✓
Units of Measure	X
Semantic Indentation	X
hasRequiredMainFunction	X
Increment and decrement operators	X
File Imports	X	import use
hasGlobalScope	X
Dynamic Typing	X
Case Insensitive Identifiers	X