algol-w.scroll

import ../code/conceptPage.scroll

id algol-w
name ALGOL W
appeared 1966
tags pl

fileType text
centralPackageRepositoryCount 0
originCommunity Stanford University

leachim6 ALGOL W
 filepath a/ALGOL W.algol
 example
  begin
      write( "Hello World" )
  end.
  

printToken write
stringToken "

hasPrintDebugging true
hasStrings true
 "Hello world"

wikipedia https://en.wikipedia.org/wiki/ALGOL_W
 example
  RECORD PERSON (
      STRING(20) NAME;
      INTEGER AGE;
      LOGICAL MALE;
      REFERENCE(PERSON) FATHER, MOTHER, YOUNGESTOFFSPRING, ELDERSIBLING
  );
  
  REFERENCE(PERSON) PROCEDURE YOUNGESTUNCLE (REFERENCE(PERSON) R);
      BEGIN
          REFERENCE(PERSON) P, M;
          P := YOUNGESTOFFSPRING(FATHER(FATHER(R)));
          WHILE (P ¬= NULL) AND (¬ MALE(P)) OR (P = FATHER(R)) DO
              P := ELDERSIBLING(P);
          M := YOUNGESTOFFSPRING(MOTHER(MOTHER(R)));
          WHILE (M ¬= NULL) AND (¬ MALE(M)) DO
              M := ELDERSIBLING(M);
          IF P = NULL THEN
              M
          ELSE IF M = NULL THEN
              P
          ELSE
              IF AGE(P) < AGE(M) THEN P ELSE M
      END
 related algol-60 pascal modula-2
 summary ALGOL W is a programming language. It is based on a proposal for ALGOL X by Niklaus Wirth and Tony Hoare as a successor to ALGOL 60 in IFIP Working Group 2.1. When the committee decided that the proposal was not a sufficient advance over ALGOL 60, the proposal was published as A contribution to the development of ALGOL. After making small modifications to the language Wirth supervised a high quality implementation for the IBM/360 at Stanford University that was widely distributed.It represented a relatively conservative modification of ALGOL 60, adding string, bitstring, complex number and reference to record datatypes and call-by-result passing of parameters, introducing the while statement, replacing switch with the case statement, and generally tightening up the language. The implementation was written in PL/360, an ALGOL-like assembly language designed by Wirth. The implementation includes influential debugging and profiling abilities.
 pageId 211058
 created 2003
 backlinksCount 41
 revisionCount 107
 dailyPageViews 29
 appeared 1966

hopl https://hopl.info/showlanguage.prx?exp=243

isbndb 0

goodreads
 title|year|author|goodreadsId|rating|ratings|reviews
 Structured Programming And Problem Solving With Algol W||Richard B. Kieburtz|4755689|0.0|0|0