CAN/CSA-ISO/IEC 13211-1-97 (R2010)

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 13211-1:1995. 1 Scope ISO/IEC 13211 is designed to promote the applicability and portability of Prolog text and data among a variety of data processing systems. This part of ISO/IEC 13211 specifies: a) The representation of Prolog text, b) The syntax and constraints of the Prolog language, c) The semantic rules for interpreting Prolog text, d) The representation of input data to be processed by Prolog, e) The representation of output produced by Prolog, and f) The restrictions and limits imposed on a conforming Prolog processor. NOTE - This part of ISO/IEC 13211 does not specify: a) the size or complexity of Prolog text that will exceed the capacity of any specific data processing system or language processor, or the actions to be taken when the corresponding limits are exceeded; b) the minimal requirements of a data processing system that is capable of supporting an implementation of a Prolog processor; c) the methods of activating the Prolog processor or the set of commands used to control the environment in which Prolog text is prepared for execution and executed; d) the mechanisms by which Prolog text is prepared for use by a data processing system; e) the typographical representation of Prolog text published for human reading; f) the user environment (top level loop, debugger, library system, editor, compiler etc.) of a Prolog processor. This part of ISO/IEC 13211 is intended for use by implementors and knowledgeable programmers, and is not a tutorial.