Windows batch: replace strings in a file case sensitively - windows

Question

I've spent a lot of time writing a script to generate new files using a "template" (coding env.) project.
While on Unix the shell script is laughably easy I spent days doing the same on Windows...
My current batch file does almost everything I need, except that the string replacement is case-insensitive... That is, it replaces "emptyproject" with "EMPTYPROJECT", being the first statement...
Code:
#echo off & setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
set argc=0
for %%x in (%*) do set /A argc+=1
if /I "%argc%" EQU "0" (
echo Usage: %0 PROJECT_NAME >&2
exit /B 1
)
set curr_dir=%~dp0
set project_name=%1
set project_name_lower=%1
set project_name_upper=%1
set project_file="vstudio\projects\%project_name%.vcxproj"
set project_filters="vstudio\projects\%project_name%.vcxproj.filters"
call :toupper project_name_upper
call :tolower project_name_lower
if not exist %project_file% (
copy /y "vstudio\projects\EmptyProject.vcxproj" %project_file% >nul
copy /y "vstudio\projects\EmptyProject.vcxproj.filters" %project_filters% >nul
)
set project_source_dir=..\projects\source\%project_name_lower%
if not exist %project_source_dir% (
mkdir %project_source_dir%
call :copy_and_replace_strings "..\projects\source\emptyproject\main.cpp" "%project_source_dir%\main.cpp" %project_name% %project_name_lower% %project_name_upper%
call :copy_and_replace_strings "..\projects\source\emptyproject\emptyproject.h" "%project_source_dir%\%project_name_lower%.h" %project_name% %project_name_lower% %project_name_upper%
call :copy_and_replace_strings "..\projects\source\emptyproject\emptyproject_main.cpp" "%project_source_dir%\%project_name_lower%_main.cpp" %project_name% %project_name_lower% %project_name_upper%
call :copy_and_replace_strings "..\projects\source\emptyproject\emptyproject_eventhandlers.cpp" "%project_source_dir%\%project_name_lower%_eventhandlers.cpp" %project_name% %project_name_lower% %project_name_upper%
)
endlocal
goto :EOF
REM functions
:toupper
for %%L IN (A B C D E F G H I J K L M N O P Q R S T U V W X Y Z) DO SET %1=!%1:%%L=%%L!
goto :EOF
:tolower
for %%L IN (a b c d e f g h i j k l m n o p q r s t u v w x y z) DO SET %1=!%1:%%L=%%L!
goto :EOF
:copy_and_replace_strings <source_file> <target_file> <name> <lower> <upper>
for /f "tokens=1,* delims=]" %%a in ('find /n /v "" ^< %1') do (
set token1=%%a
set token2=%%b
if defined token2 (
REM not case sensitive
set token2=!token2:EMPTYPROJECT=%5!
set token2=!token2:EmptyProject=%3!
set token2=!token2:emptyproject=%4!
echo !token2!>>%2
) else (
echo[>>%2
)
)
goto :EOF
I read a lot about this on this forum, but couldn't find a suitable solution. Could someone help me please?

Answer 1

#ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
FOR %%o IN (EMPTYPROJECT EmptyProject emptyproject EmPtYpRoJeCt) DO (
SET "token2=A line containing %%o in it"
CALL :magic
ECHO !token2! -^> !result!
)
GOTO :EOF
:magic
SET "result=!token2!"
ECHO !token2!|FINDSTR "EMPTYPROJECT" >NUL
IF NOT ERRORLEVEL 1 set "result=!token2:EMPTYPROJECT=capiTaLs!"
ECHO !token2!|FINDSTR "EmptyProject" >NUL
IF NOT ERRORLEVEL 1 set "result=!token2:EMPTYPROJECT=Mixed!"
ECHO !token2!|FINDSTR "emptyproject" >NUL
IF NOT ERRORLEVEL 1 set "result=!token2:EMPTYPROJECT=lower!"
GOTO :eof
Perhaps this will be of assistance.

Answer 2

To be rather honest, your quickest method to keep it pure batch is to trick the system and use powershell in the background.
#echo off
setlocal enabledelayedexpansion
set "input=i want this upper case"
for /f "usebackq delims=" %%a in (`powershell "\"%input%\".toUpper()"`) do set "lower=%%~a"
set "input=I WANT THIS LOWER CASE"
for /f "usebackq delims=" %%a in (`powershell "\"%input%\".toLower()"`) do set "upper=%%~a"
echo !lower!
echo !upper!
RESULT
I WANT THIS UPPER CASE
i want this lower case