Pascal is an influential imperative and procedural programming language, designed in 1968–1969 and published in 1970 by Niklaus Wirth as a small and efficient language intended to encourage good programming practices using structured programming and data structuring. It uses .pas as a common file extension. http://www.pascal-programming.info/index.php is its website. All keywords etc. are here. The use of (* and *) represents a comment.Types, pointers, lists, trees and graphs are delimiters which make sense to be highlighted in delimiter highlighting. Turbo Pascal and Delphi Pascal are extensions. Example code here.