How can I exit a batch file from within a function?

Question

I have a simple function written to check for directories:

:direxist
if not exist %~1 (
    echo %~1 could not be found, check to make sure your location is          


        

Answer 1

Here's my solution that will support nested routines if all are checked for errorlevel I add the test for errolevel at all my calls (internal or external)

@echo off
call :error message&if errorlevel 1 exit /b %errorlevel%<
@echo continuing
exit /b 0
:error
@echo in %0
@echo message: %1
set yes=
set /p yes=[no]^|yes to continue
if /i "%yes%" == "yes" exit /b 0
exit /b 1