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Asked: 2021-11-10T11:12:56+00:00 In:

Delayed Expansion And Substring Processing?

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Hi,
I’d like to create variable names where I can control the sort order of the values that the variables contain. I had hoped the following would facilitate such a desire:

 

@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION

SET /A position=0
SET order=DEFABC

FOR /L %%A IN (1,1,6) DO (
    SET sequence=%order:~!position!,1%
    SET some_variable_!sequence!=%%A
    SET /A position+=1
)

FOR /F "tokens=1* delims==" %%A IN ('SET some_variable_') DO (
    ECHO "%%A" = "%%B"
)

EXIT /B

Desired output:

"some_variable_A" = "4"
"some_variable_B" = "5"
"some_variable_C" = "6"
"some_variable_D" = "1"
"some_variable_E" = "2"
"some_variable_F" = "3"

Actual output:

"some_variable_order:~0,1" = "1"
"some_variable_order:~1,1" = "2"
"some_variable_order:~2,1" = "3"
"some_variable_order:~3,1" = "4"
"some_variable_order:~4,1" = "5"
"some_variable_order:~5,1" = "6"

What am I missing? You folks here are pretty sharp, and I was curious if there is an alternate method that would accomplish my goal.

*Edit – Fixed typo

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    1 Answer

    1. You don’t even need to use call:
      @ECHO OFF
      SETLOCAL ENABLEDELAYEDEXPANSION

      SET /A position=0
      SET order=DEFABC

      FOR /L %%A IN (1,1,6) DO (
      for %%b in (!position!) do SET sequence=!order:~%%b,1!
      SET some_variable_!sequence!=%%A
      SET /A position+=1
      )

      FOR /F “tokens=1* delims==” %%A IN (‘SET some_variable_’) DO (
      ECHO “%%A” = “%%B”
      )

      EXIT /B

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