Batch Script: How to convert letters into their predefined set of numerical counterparts then sum them up

Question

I found a similar topic and solution by Endoro about converting letters into their numerical counterpart, but in my case I want to use a predefined set of numbers then sum them up with each other. Is that possible?

What I meant by that:

"A=1" "B=2" "C=3" "D=9" "E=4" "F=8" "G=2" "H=5" "I=2" "J=5" "K=2" "L=5" "M=4" "N=5" "O=2" "P=8" "Q=1" "R=9" "S=8" "T=7" "U=6" "V=6" "W=1" "X=5" "Y=1" "Z=1"

The output should look something like this:

Atom
1 7 2 4
14

The above mentioned reference:

@ECHO OFF &SETLOCAL ENABLEDELAYEDEXPANSION
SET /p "text=input : "
cls
SET "alfa=0abcdefghijklmnopqrstuvwxyz"
FOR /l %%x IN (1,1,26) DO SET "$!alfa:~%%x,1!=%%x"
SET /a count=0
:loop
SET "char=!text:~%count%,1!"
SET "code=!$%char%!
SET /a count+=1
IF DEFINED char SET "line=!line!%code% "&GOTO :loop
ECHO %text%
ECHO %line%

I'm not quite familiar with the full extent of the for command so an explanation of the solution would be appreciated. I want to understand how this works. Thanks in advance.

Answer 1

There are several different ways to solve the same problem. This solution is very simple and it does not require a single for command! Each simple step is explained in the code. Perhaps the "most complicated" :/ part is the initialization of the variables that have the values of the letters.

This line:

set init="A=1" "B=2" "C=3" ... "X=5" "Y=1" "Z=1"

is exactly the same line of "initial values" you posted in the question.

This line:

set %init: =&set %

is a simple replacement that change each space by &set. This means that previous line is changed to:

set "A=1"&set "B=2"&set "C=3" ...&set "X=5"&set "Y=1"&set "Z=1"

and, after that, the line is executed... Simple, isn't it? ;)

@echo off
setlocal

rem Define initialization string
set init="A=1" "B=2" "C=3" "D=9" "E=4" "F=8" "G=2" "H=5" "I=2" "J=5" "K=2" "L=5" "M=4" "N=5" "O=2" "P=8" "Q=1" "R=9" "S=8" "T=7" "U=6" "V=6" "W=1" "X=5" "Y=1" "Z=1"

rem Initialize variables
set %init: =&set %
set "nums="
set "sum=0"

set /P "text=input: "
echo %text%

:loop

   rem Get first char in text
   set "char=%text:~0,1%"

   rem Get code and add it to sum
   set /A "code=%char%, sum+=code"

   rem Join code to nums
   set "nums=%nums%%code% "

rem Remove first char from text and repeat
set "text=%text:~1%"
IF DEFINED text GOTO :loop

ECHO %nums%
ECHO %sum%

Example:

input: Atom
Atom
1 7 2 4
14

The output example given your input example is exactly the same you listed above...

EDIT: New version added

@echo off
setlocal

rem Define initialization string
set init="A=1" "B=2" "C=3" "D=9" "E=4" "F=8" "G=2" "H=5" "I=2" "J=5" "K=2" "L=5" "M=4" "N=5" "O=2" "P=8" "Q=1" "R=9" "S=8" "T=7" "U=6" "V=6" "W=1" "X=5" "Y=1" "Z=1"

rem Initialize variables
set %init: =&set %

:repeat

set "text= "
set /P "text=input: "
set "text=%text: =%"
if not defined text goto :EOF

set "out="
set "nums="
set "sum=0"

:loop

   rem Get first char in text and join it to out
   set "char=%text:~0,1%"
   set "out=%out%%char% "

   rem Get code and add it to sum
   set /A "code=%char%, sum+=code"

   rem Join code to nums
   set "nums=%nums%%code% "

rem Remove first char from text and repeat
set "text=%text:~1%"
IF DEFINED text GOTO :loop

ECHO %out%
ECHO %nums%
ECHO %sum%
echo/

goto repeat

Example:

input: Atom
A t o m
1 7 2 4
14

input: My name is Antonio
M y n a m e i s A n t o n i o
4 1 5 1 4 4 2 8 1 5 7 2 5 2 2
53

input:

EDIT: Another shorter version, just for fun...

@echo off
setlocal EnableDelayedExpansion

rem Define initialization string
set init="A=1" "B=2" "C=3" "D=9" "E=4" "F=8" "G=2" "H=5" "I=2" "J=5" "K=2" "L=5" "M=4" "N=5" "O=2" "P=8" "Q=1" "R=9" "S=8" "T=7" "U=6" "V=6" "W=1" "X=5" "Y=1" "Z=1"

rem Initialize one-letter variables
set %init: =&set %

:repeat

rem Read a line from user
set "text= "
set /P "text=input: "
set "text=%text: =%"
if not defined text goto :EOF

rem Insert a space between letters
set "out="
:loop
   set "out=%out% %text:~0,1%"
   set "text=%text:~1%"
IF DEFINED text GOTO :loop
set "out=%out:~1%"

rem Get the sum: replace the space between letters by a plus sign
set /A "sum=%out: =+%"

rem Show letters separated by space
echo %out%
rem Change spaces by "! !" to show *the values* of the letters via Delayed Expansion
echo !%out: =! !%!
echo %sum%
echo/

goto repeat