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This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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The source code

@echo off

if exist "%HOME%\antrc_pre.bat" call "%HOME%\antrc_pre.bat"

if not "%OS%"=="Windows_NT" goto win9xStart
:winNTStart
@setlocal

rem %~dp0 is name of current script under NT
set DEFAULT_ANT_HOME=%~dp0

rem : operator works similar to make : operator
set DEFAULT_ANT_HOME=%DEFAULT_ANT_HOME:\bin\=%

if %ANT_HOME%a==a set ANT_HOME=%DEFAULT_ANT_HOME%
set DEFAULT_ANT_HOME=

rem On NT/2K grab all arguments at once
set ANT_CMD_LINE_ARGS=%*
goto doneStart

:win9xStart
rem Slurp the command line arguments.  This loop allows for an unlimited number of 
rem agruments (up to the command line limit, anyway).

set ANT_CMD_LINE_ARGS=

:setupArgs
if %1a==a goto doneStart
set ANT_CMD_LINE_ARGS=%ANT_CMD_LINE_ARGS% %1
shift
goto setupArgs

:doneStart
rem This label provides a place for the argument list loop to break out 
rem and for NT handling to skip to.

rem find ANT_HOME
if not "%ANT_HOME%"=="" goto checkJava

rem check for ant in Program Files on system drive
if not exist "%SystemDrive%\Program Files\ant" goto checkSystemDrive
set ANT_HOME=%SystemDrive%\Program Files\ant
goto checkJava

:checkSystemDrive
rem check for ant in root directory of system drive
if not exist "%SystemDrive%\ant" goto noAntHome
set ANT_HOME=%SystemDrive%\ant
goto checkJava

:noAntHome
echo ANT_HOME is not set and ant could not be located. Please set ANT_HOME.
goto end

:checkJava
set _JAVACMD=%JAVACMD%
set LOCALCLASSPATH=%CLASSPATH%
for %%i in ("%ANT_HOME%\lib\*.jar") do call "%ANT_HOME%\bin\lcp.bat" "%%i"

if "%JAVA_HOME%" == "" goto noJavaHome
if "%_JAVACMD%" == "" set _JAVACMD=%JAVA_HOME%\bin\java
if exist "%JAVA_HOME%\lib\tools.jar" call "%ANT_HOME%\bin\lcp.bat" "%JAVA_HOME%\lib\tools.jar"
if exist "%JAVA_HOME%\lib\classes.zip" call "%ANT_HOME%\bin\lcp.bat" "%JAVA_HOME%\lib\classes.zip"
goto checkJikes

:noJavaHome
if "%_JAVACMD%" == "" set _JAVACMD=java
echo.
echo Warning: JAVA_HOME environment variable is not set.
echo   If build fails because sun.* classes could not be found
echo   you will need to set the JAVA_HOME environment variable
echo   to the installation directory of java.
echo.

:checkJikes
if not "%JIKESPATH%" == "" goto runAntWithJikes

:runAnt
%_JAVACMD% -classpath %LOCALCLASSPATH% -Dant.home="%ANT_HOME%" %ANT_OPTS% org.apache.tools.ant.Main %ANT_CMD_LINE_ARGS%
goto end

:runAntWithJikes
%_JAVACMD% -classpath %LOCALCLASSPATH% -Dant.home="%ANT_HOME%" -Djikes.class.path=%JIKESPATH% %ANT_OPTS% org.apache.tools.ant.Main %ANT_CMD_LINE_ARGS%

:end
set LOCALCLASSPATH=
set _JAVACMD=
set ANT_CMD_LINE_ARGS=

if not "%OS%"=="Windows_NT" goto mainEnd
:winNTend
@endlocal

:mainEnd
if exist "%HOME%\antrc_post.bat" call "%HOME%\antrc_post.bat"



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