title: Need assistance with delayed expansion
body: <p>I'm trying to make a bat file that localizes labels in a custom extension file I made and gets an output, the problem is that since there is apparently no way to increase a variable in a FOR loop without starting a local environment, I cannot do that.</p>
  
  <pre><code>@echo off
  SET _TSL=%3
  SET _forcount=1
  SET _COLONLINE=0
  SET /a _LINESKIP=%_TSL%-1
  if "%5"=="1" (
  echo [Mesa Markdown Debug] File Directory     : %1
  echo [Mesa Markdown Debug] Target Colon       : %2
  echo [Mesa Markdown Debug] Line               : %_LINESKIP%
  echo [Mesa Markdown Debug] Item               : %4
  echo [Mesa Markdown Debug] DebugMode          : %5
  echo.
  )
  setlocal ENABLEDELAYEDEXPANSION
  for /F "eol=$ usebackq" %%i in (%1) do (
  SET /A _forcount=_forcount+1
  if "%%i"=="%2" SET _COLONLINE=!_forcount!
  )
  if "%5"=="1" (echo [Mesa Markdown Debug] Target Colon is: %_COLONLINE%)
  SET /a _LINESKIP=%_LINESKIP%+%_COLONLINE%
  if "%5"=="1" (echo [Mesa Markdown Debug] Target line acquired: %_LINESKIP%)
  for /F "eol=$ skip=%_LINESKIP% delims=" %%i in (%1) do if not defined _mmkstring (SET _mmkstring=%%i)
  if "%5"=="1" (echo [Mesa Markd
  
  own Debug] Conent of line %_LINESKIP%: %_mmkstring%)
  if "%_mmkstring%"=="" (echo [Mesa Markdown] Error @ line %_LINESKIP% of %1 - The line appears empty.)
  if "%4"=="1" (for /F "tokens=1-9* delims={}," %%a in ("%_mmkstring%") do SET _mmk=%%a)
  if "%4"=="2" (for /F "tokens=1-9* delims={}," %%a in ("%_mmkstring%") do SET _mmk=%%c)
  if "%4"=="3" (for /F "tokens=1-9* delims={}," %%a in ("%_mmkstring%") do SET _mmk=%%e)
  endlocal
  </code></pre>
  
  <p>In a separate batch file which called this one, "echo %_mmk% returns nothing.</p>