How to resolve the algorithm Character codes step by step in the REXX programming language

Published on 12 May 2024 09:40 PM
#Rexx

How to resolve the algorithm Character codes step by step in the REXX programming language

Table of Contents

Problem Statement

Given a character value in your language, print its code   (could be ASCII code, Unicode code, or whatever your language uses).

The character   'a'   (lowercase letter A)   has a code of 97 in ASCII   (as well as Unicode, as ASCII forms the beginning of Unicode). Conversely, given a code, print out the corresponding character.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Character codes step by step in the REXX programming language

Source code in the rexx programming language

/*REXX program displays a char's ASCII code/value (or EBCDIC if run on an EBCDIC system)*/
yyy= 'c'                               /*assign a lowercase       c        to   YYY.    */
yyy= "c"                               /* (same as above)                               */
say  'from char, yyy code=' yyy

yyy= '63'x                             /*assign hexadecimal      63        to   YYY.    */
yyy= '63'X                             /* (same as above)                               */
say  'from  hex, yyy code=' yyy

yyy= x2c(63)                           /*assign hexadecimal      63        to   YYY.    */
say  'from  hex, yyy code=' yyy

yyy= '01100011'b                       /*assign a binary      0011 0100    to   YYY.    */
yyy= '0110 0011'b                      /* (same as above)                               */
yyy= '0110 0011'B                      /*   "   "    "                                  */
say  'from  bin, yyy code=' yyy

yyy= d2c(99)                           /*assign decimal code     99        to   YYY.    */
say  'from  dec, yyy code=' yyy

say                                    /*     [↓]    displays the value of  YYY  in ··· */
say  'char code: '   yyy               /* character code  (as an 8-bit ASCII character).*/
say  ' hex code: '   c2x(yyy)          /*    hexadecimal                                */
say  ' dec code: '   c2d(yyy)          /*        decimal                                */
say  ' bin code: '   x2b( c2x(yyy) )   /*         binary  (as a bit string)             */
                                       /*stick a fork in it, we're all done with display*/

/* REXX */
yyy='c'               /*assign a lowercase   c to  YYY */
yyy='83'x             /*assign hexadecimal  83 to  YYY */
                      /*the  X  can be upper/lowercase.*/
yyy=x2c(83)           /* (same as above)               */
yyy='10000011'b       /* (same as above)               */
yyy='1000 0011'b      /* (same as above)               */
                      /*the  B  can be upper/lowercase.*/
yyy=d2c(129)          /*assign decimal code 129 to YYY */

say yyy               /*displays the value of  YYY                   */
say c2x(yyy)          /*displays the value of  YYY in hexadecimal.   */
say c2d(yyy)          /*displays the value of  YYY in decimal.       */
say x2b(c2x(yyy))/*displays the value of YYY in binary (bit string). */

You may also check:How to resolve the algorithm Loops/For with a specified step step by step in the Openscad programming language
You may also check:How to resolve the algorithm Real constants and functions step by step in the BASIC256 programming language
You may also check:How to resolve the algorithm GUI enabling/disabling of controls step by step in the Java programming language
You may also check:How to resolve the algorithm Hello world/Newbie step by step in the NS-HUBASIC programming language
You may also check:How to resolve the algorithm Call a foreign-language function step by step in the JavaScript programming language