How to resolve the algorithm Binary strings step by step in the Red programming language

Published on 12 May 2024 09:40 PM
#Red

How to resolve the algorithm Binary strings step by step in the Red programming language

Table of Contents

Problem Statement

Many languages have powerful and useful (binary safe) string manipulation functions, while others don't, making it harder for these languages to accomplish some tasks. This task is about creating functions to handle binary strings (strings made of arbitrary bytes, i.e. byte strings according to Wikipedia) for those languages that don't have built-in support for them. If your language of choice does have this built-in support, show a possible alternative implementation for the functions or abilities already provided by the language. In particular the functions you need to create are:

Possible contexts of use: compression algorithms (like LZW compression), L-systems (manipulation of symbols), many more.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Binary strings step by step in the Red programming language

Source code in the red programming language

Red []
s: copy "abc"   ;; string creation

s: none ;; destruction
t: "Abc"
if t == "abc" [print "equal case"]              ;; comparison , case sensitive
if t = "abc" [print "equal (case insensitive)"]  ;; comparison , case insensitive
s: copy ""                                        ;; copying string
if empty? s [print "string is empty "]          ;; check if string is empty 
append s #"a"                                    ;; append byte
substr: copy/part at "1234" 3 2               ;; ~ substr ("1234" ,3,2) , red has 1 based indices !
?? substr
s: replace/all "abcabcabc" "bc" "x"             ;; replace all "bc" by "x"
?? s
s: append "hello " "world"                        ;; join 2 strings
?? s
s: rejoin ["hello " "world" " !"]                   ;; join multiple strings
?? s

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