KRL - Programming language

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KRL, aka knowledge representation language, is a programming language created in 1976 by Daniel G. Bobrow and Terry Winograd.

#570on PLDB

48Years Old

440Repos

KRL is a knowledge representation language, developed by Daniel G. Bobrow and Terry Winograd while at Xerox PARC and Stanford University, respectively. It is a frame-based language. Read more on Wikipedia...

KRL Wikipedia page
There are at least 440 KRL repos on GitHub
KRL first developed in Xerox PARC and Stanford University
The Google BigQuery Public Dataset GitHub snapshot shows 18 users using KRL in 30 repos on GitHub
KRL on HOPL
See also: (1 related languages)KUKA Robot Language

Example from the web:

ruleset sample {
  meta {
    name "Hello World"
    description <<
Hello world
>>
    author "Phil Windley"
  }

  // just one rule
  rule hello {
    select when web pageview
    notify("Hello world!", "Just a note to say hello");
  }
}

Language features

Feature	Supported	Token	Example
Strings	✓	"	"Hello world"
Comments	✓		// A comment
Line Comments	✓	//	// A comment
Semantic Indentation	X