Occam

Occam is a programming language created in 1983 by David May.

occam is a concurrent programming language that builds on the communicating sequential processes (CSP) process algebra, and shares many of its features. It is named after William of Ockham of Occam's Razor fame. occam is an imperative procedural language (such as Pascal). Read more on Wikipedia...

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the Occam Wikipedia page
Explore Occam snippets on Rosetta Code
Occam is listed on HOPL
Occam appears in the TIOBE Index
See also: OCaml, Ease, Go, CSP, Pascal, Haskell, Python
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Example code from hello-world:

PROGRAM Hello
#USE ioconv

SEQ
  write.full.string(screen,"Hello World")

Example code from the Hello World Collection:

PROGRAM Hello
-- Hello world in Occam
#USE ioconv

SEQ
  write.full.string(screen,"Hello World!")

Example code from Wikipedia:

ALT
   count1 < 100 & c1 ? data
     SEQ
       count1 := count1 + 1
       merged ! data
   count2 < 100 & c2 ? data
     SEQ
       count2 := count2 + 1
       merged ! data
   status ? request
     SEQ
       out ! count1
       out ! count2

Language features

Feature	Supported	Example	Token
Strings	✓	"Hello world"	"
Print() Debugging	✓		write.full.string
Semantic Indentation	✓

Books about Occam on goodreads

title	author	year	reviews	ratings	rating
Programming In Occam	Geraint Jones		1	3	3.00

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