CMD DOS BATCH – Example of dynamic substring with subroutines

CMD DOS BATCH – Example of dynamic  substring with subroutines

This example illustrates the following:

1. Substring
1. Dynamic length based on the remaining length of the string from the start position.
2. Subroutine
1. With variable “by-reference”
2. Passing received variable from one subroutine to another
3. Adding comma to each letter – in this case just using the count of characters. t

Test.cmd:

@echo off cls SETLOCAL enabledelayedexpansion echo This example will pick up characters from 5 (b) to n in moon set Stuff="The brown cow jumped over the moon" echo Stuff starting=!Stuff! call :mysr Stuff goto:eof :mysr SETLOCAL enabledelayedexpansion set SenSuffix=!%1! set countTotal=0 call :StrToComSep SenSuffix countTotal set startIndex=5 set /a length=!countTotal!-!startIndex! Note -  Do not call the following statement inside a loop or if statement CALL SET _SenSuffix=!%1:~%startIndex%,%length%! echo _SenSuffix after modification=!_SenSuffix! goto:eof rem This subroutine takes a variable and places a comma after each character rem and white space to be used as a deliminator :StrToComSep <StrToDel> <countTotal> setlocal enabledelayedexpansion set string=!%1!# set pos=0 :startLoop        call set chr=%%string:~%pos%,1%%        if !chr!==# goto done        set varRebuild=!varRebuild!!chr!,        set /a pos+=1 goto startLoop :done set varRebuild=!varRebuild:~0,-1! ENDLOCAL & (SET %1=%varRebuild% SET %2=%pos%) goto:eof

Output:

This example will pick up characters from 5 (b) to n in moon Stuff starting="The brown cow jumped over the moon" _SenSuffix after modification=brown cow jumped over the moon"

tComma subroutine based on webpage:

http://www.computerhope.com/forum/index.php?topic=112779.0;wap