How to resolve the algorithm Show ASCII table step by step in the Prolog programming language

Published on 12 May 2024 09:40 PM
#Prolog

How to resolve the algorithm Show ASCII table step by step in the Prolog programming language

Table of Contents

Problem Statement

Show  the ASCII character set  from values   32   to   127   (decimal)   in a table format.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Show ASCII table step by step in the Prolog programming language

Source code in the prolog programming language

ascii :-
    forall(between(32, 47, N), row(N)).

row(N) :- N > 127, nl, !.
row(N) :-
    code(N),
    ascii(N),  
    Nn is N + 16,
    row(Nn).

code(N) :- N < 100, format('  ~d : ', N).
code(N) :- N >= 100, format(' ~d : ', N).

ascii(32) :- write(' Spc    '), !.
ascii(127) :- write(' Del   '), !.
ascii(A) :- char_code(D,A), format(' ~w      ', D).

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