我的问题与这个问题有关。我有几个需要从批处理文件中执行的动作，我希望将它们建模为函数，并从主序列中调用。从上面的问题中，可以清楚地看出我可以使用调用语法来实现这一点。
call:myDosFunc
我认为在批处理文件开头使用路由函数并不丑陋。 您可以在 "libbatch.cmd" 的开头使用类似这样的东西。
call:%*
exit/b
:func1
[do something]
exit/b
:func2
[do something else]
exit/b
现在你可以通过以下方式从另一个批处理文件中调用func2：
call libbatch.cmd func2 params1 param2 ... paramN
这也保留了func2引发的错误级别（exit/b将当前错误级别传递）。
通过第二次调用而不是使用goto，您确保“%1”==“param1”，而不是func2。如果标签不存在，调用不会终止批处理文件，它只是将错误级别设置为1并将错误消息放入2（errorout），可以将其重定向到nul。
解释：％*包含所有参数，因此在此示例中，第一行翻译为：
call:func2 params1 param2 ... paramN
%字符会丢失，并且调用者必须将其加倍以进行补偿。引用的^字符由CALL加倍。^加倍是一个令人讨厌的问题。我不知道有什么好的解决方案。 - dbenham@echo off
if "%~1" neq "" (
2>nul >nul findstr /rc:"^ *:%~1\>" "%~f0" && (
shift /1
goto %1
) || (
>&2 echo ERROR: routine %~1 not found
)
) else >&2 echo ERROR: missing routine
exit /b
:test1
echo executing :test1
echo arg1 = %1
exit /b
:test2
echo executing :test2
echo arg1 = %1
echo arg2 = %2
exit /b
:test3
echo executing :test3
echo arg1 = %1
echo arg2 = %2
echo arg3 = %3
exit /b
我更喜欢上面使用的GOTO方法。另一种选择是使用CALL，就像Thomas在他的答案中所做的那样。
一个使用CALL技术的有用批处理函数库的工作示例，请参见CHARLIB.BAT，这是一个用于在批处理文件中处理字符和字符串的例程库。可以在此处找到展示该库开发的线程。
我几年前写了CharLib.bat。如果我今天要写它，我可能会使用GOTO而不是CALL。
引入CALL的问题在于，当将字符串字面值作为参数传递时会出现问题。额外的CALL意味着包含%的字符串字面值必须再次加倍百分号。它还意味着未加引号的毒瘤字符如&和|需要再次转义。这两个问题可以由调用者解决。但是真正的问题在于每个CALL会使带引号的插入符加倍："^"变成了"^^"。没有很好的方法解决插入符加倍的问题。
额外CALL的问题对CharLib.bat没有影响，因为字符串值是通过引用（变量名）而不是作为字符串字面值传递的。
使用SHIFT /1和GOTO的唯一缺点是您无法使用%0来获取当前正在执行的例程的名称。我可以使用未带/1的SHIFT，但这样您将无法在例程中使用%~f0获取执行批处理文件的完整路径。
。
call mybat :function4 parameternumber2 parameternumber3
@echo off
goto %1
:function1
REM code here - recursion and subroutines will complicate the library
REM use random names for any temp files, and check if they are in use - else pick a different random name
goto :eof
:function2
REM code here - recursion and subroutines will complicate the library
REM use random names for any temp files, and check if they are in use - else pick a different random name
goto :eof
:function3
REM code here - recursion and subroutines will complicate the library
REM use random names for any temp files, and check if they are in use - else pick a different random name
goto :eof
:function4
REM code here - recursion and subroutines will complicate the library
REM use random names for any temp files, and check if they are in use - else pick a different random name
goto :eof
(
rem Switch the context to the library file
ren main.bat orig-main.bat
ren library.bat main.bat
rem From this point on, any library function can be called
. . . .
rem Switch back the context to the original one
ren main.bat library.bat
ren orig-main.bat main.bat
)
编辑：已添加可工作的示例
我从屏幕上复制了以下示例。在Windows 8中测试过，但我也在Win XP中使用过此方法：
C:\Users\Antonio\Documents\test
>type main.bat
@echo off
(
rem Switch the context to the library file
ren main.bat orig-main.bat
ren library.bat main.bat
rem From this point on, any library function can be called, for example:
echo I am Main, calling libFunc:
call :libFunc param1
echo Back in Main
rem Switch back the context to the original one
ren main.bat library.bat
ren orig-main.bat main.bat
)
C:\Users\Antonio\Documents\test
>type library.bat
:libFunc
echo I am libFunc function in library.bat file
echo My parameter: %1
exit /B
C:\Users\Antonio\Documents\test
>main
I am Main, calling libFunc:
I am libFunc function in library.bat file
My parameter: param1
Back in Main
main.bat或library.bat文件，例如文本编辑器。 - Aacini@EHO OFF
@REM Load the VESA driver fix..
VESAFIX.EXE
@REM Load the joystick driver..
JOYSTICK.COM
@REM Now run the game
RUNGAME.EXE
CALL BATLIB.BAT FunctionName Parameter1 Parameter2 ...
CALL :LABEL Parameter1 Paramater2 ...
CALL BATLIB.BAT :LABEL Parameter1 Parameter2 ...
@ECHO OFF
CALL %*
正如你所看到的，事情很快就变得复杂和混乱了... 你必须停止像程序员那样思考，开始像COMMAND.COM/CMD.EXE那样思考，它几乎只看到一条单独的命令，而不是整个批处理文件作为一个原子单位。实际上，下面是一个示例，帮助你真正掌握它的工作方式...
创建一个名为C:\testing的文件夹，并将以下批处理文件命名为"oops.bat"放入其中：
@ECHO OFF
ECHO Look mom, no brain!
PAUSE
ECHO Bye mom!
C:\testing>oops.bat
Look mom, no brain!
Press any key to continue . . .
@ECHO OFF
ECHO Look mom, no brain!?
ECHO Oops!
PAUSE
ECHO Bye mom!
'ops!' is not recognized as an internal or external command,
operable program or batch file.
Press any key to continue . . .
Bye mom!
c:\testing>
@ECHO OFF
SET TEMPBAT=%TEMP%\TMP%RANDOM:~0,1%%RANDOM:~0,1%%RANDOM:~0,1%%RANDOM:~0,1%.BAT
ECHO @ECHO OFF > %TEMPBAT%
ECHO ECHO Hi Mom! I'm %TEMPBAT%! >> %TEMPBAT%
ECHO Hello, world, I'm %~dpnx0!
CALL %TEMPBAT%
DEL %TEMPBAT%
总之，正如您可以从本帖子的长度看出来的那样，这个主题确实不是一个简单的主题。网络上有数十个或更多网页提供大量批处理文件技巧、技巧等信息，其中许多深入探讨如何使用它们、创建批处理文件库、要注意哪些内容、如何按引用而非按值传递参数、如何管理变量何时何地被展开等等。
快速在谷歌上搜索“BATCH FILE PROGRAMMING”，你可以找到很多相关资源，你也可以查看维基百科和维基教科书、SS64.com、robvanderwoude.com，甚至是DMOZ的目录等网站获取更多资源。@echo off
REM IMPORT - a .cmd utility for importing subroutines into the main script
REM !!! IN ORDER TO FUNCTION CORRECTLY: !!!
REM !!! IMPORT MUST BE CALLED INSIDE A DISABLED DELAYED EXPANSION BLOCK/ENVIRONMENT (DEFAULT) !!!
rem \\// Define import file mask here:
rem If mask is not defined outside "import.cmd":
if not defined mask (
set "mask=*.cmd; *.bat"
)
rem //\\ Define import file mask here:
rem Detect if script was started from command line:
call :DetectCommandLine _not_started_from_command_line
if "%~1" == "/install" (
set "import_path=%~dp0"
call :EscapePathString import_path import_path_escaped
)
if not "%~1" == "" (
if /i not "%~1" == "end" (
if "%~1" == "/?" (
call :DisplayHelp
) else (
if "%~1" == "/install" (
echo Installing
set "_first_time="
rem This should get into the Autorun registry key: path %path%;"...\import.cmd"
rem If you want, other commands can be added to the left or to the right of this command, unified as a block with a "&" command operator
REG ADD "HKCU\Software\Microsoft\Command Processor" /v AutoRun /t REG_SZ /d "path %%path%%;"""%import_path_escaped%""||(
echo ERROR: Cannot install import: cannot write to the registry^!
echo You can try to manually add the "import.cmd" path in the "PATH" variable or use pushd ^(see help^).
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
)
echo.
echo Done. The install directory was set to:
echo "%import_path%"
echo and was added to the PATH environment variable. You can add other desired programs into this directory.
echo.
echo Please note that the console needs to be closed and reopened in order for the changes to take effect^!
echo.
) else (
if not defined _first_time (
set _first_time=defined
set /a count=0
if "%_DISPLAY_WARNING%" == "true" (
echo.
echo WARNING: CMD_LIBRARY was reset to "", because previously it gave an error^!
echo.
)
echo Loading list to import...
)
REM build import files list
set /a count+=1
call set "_import_list_%%count%%=%%~1"
)
)
)
) else (
call :DisplayHelp
)
if /i "%~1" == "end" (
set "_first_time="
echo Done.
echo Analyzing...
rem set "_main_program=%~dpnx2"
if not exist "%~dpnx2" (
echo ERROR: Second parameter, after "import end", must be a valid file path - see help^!>>&2
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
)
)
if /i "%~1" == "end" (
set "_main_batch_script=%~dpnx2"
rem \\// Define output filename here:
rem set "_output_filename=tmp0001_%~n2.cmd"
set "_output_filename=tmp0001.cmd"
rem //\\ Define output filename here:
)
if /i "%~1" == "end" (
rem Check all paths not to be UNC:
setlocal EnableDelayedExpansion
set "_error=false"
call :TestIfPathIsUNC _main_batch_script _result
if "!_result!" == "true" (
set "_error=true"
echo.
echo ERROR: UNC paths are not allowed: Second parameter, after "import end", must not be a UNC path^^^! Currently it is: "!_main_batch_script!">>&2
)
set "_CMD_LIBRARY_error=false"
call :TestIfPathIsUNC CMD_LIBRARY _result
if "!_result!" == "true" (
set "_error=true"
set "_CMD_LIBRARY_error=true"
echo.
echo ERROR: UNC paths are not allowed: CMD_LIBRARY variable must not contain a UNC path^^^! Currently, it is set to: "!CMD_LIBRARY!".>>&2
)
for /l %%i in (1,1,!count!) do (
call :TestIfPathIsUNC _import_list_%%i _result
if "!_result!" == "true" (
set "_error=true"
echo.
echo ERROR: UNC paths are not allowed: The import path: "!_import_list_%%i!" is a UNC path^^^!>>&2
)
)
if "!_error!" == "true" (
echo.
echo Errors were ecountered^^^!
if "!_CMD_LIBRARY_error!" == "true" (
endlocal
set "_CMD_LIBRARY_error=true"
) else (
endlocal
set "_CMD_LIBRARY_error=false"
)
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
) else (
endlocal
set "_CMD_LIBRARY_error=false"
)
)
if /i "%~1" == "end" (
rem Check all paths not to contain "*" and "?" wildcards:
set "_asterisk=*"
set "_qm=?"
setlocal EnableDelayedExpansion
set "_error=false"
call :TestIfStringContains _main_batch_script _asterisk _result1
call :TestIfStringContains _main_batch_script _qm _result2
if "!_result1!" == "true" (
set "_error=true"
)
if "!_result2!" == "true" (
set "_error=true"
)
if "!_error!" == "true" (
echo.
echo ERROR: The use of "*" or "?" wildcards is not supported by import: Second parameter, after "import end", must not contain "*" or "?" wildcards^^^! Currently it is: "!_main_batch_script!". Instead, you can set the mask with a set of name and extension masks sepparated by semicolon, like: set mask="*.cmd; *.bat">>&2
)
set "_CMD_LIBRARY_error=false"
call :TestIfStringContains CMD_LIBRARY _asterisk _result1
call :TestIfStringContains CMD_LIBRARY _qm _result2
if "!_result1!" == "true" (
set "_error=true"
)
if "!_result2!" == "true" (
set "_error=true"
)
if "!_error!" == "true" (
set "_error=true"
set "_CMD_LIBRARY_error=true"
echo.
echo ERROR: The use of "*" or "?" wildcards is not supported by import: CMD_LIBRARY variable must not contain "*" or "?" wildcards^^^! Currently, it is set to: "!CMD_LIBRARY!". Instead, you can set the mask with a set of name and extension masks sepparated by semicolon, like: set mask="*.cmd; *.bat">>&2
)
for /l %%i in (1,1,!count!) do (
call :TestIfStringContains _import_list_%%i _asterisk _result1
call :TestIfStringContains _import_list_%%i _qm _result2
if "!_result1!" == "true" (
set "_error=true"
)
if "!_result2!" == "true" (
set "_error=true"
)
if "!_error!" == "true" (
set "_error=true"
echo.
echo ERROR: The use of "*" or "?" wildcards is not supported by import: The import path: "!_import_list_%%i!" must not contain "*" or "?" wildcards^^^! Instead, you can set the mask with a set of name and extension masks sepparated by semicolon, like: set mask="*.cmd; *.bat">>&2
)
)
if "!_error!" == "true" (
echo.
echo Errors were ecountered^^^!
if "!_CMD_LIBRARY_error!" == "true" (
endlocal
set "_CMD_LIBRARY_error=true"
) else (
endlocal
set "_CMD_LIBRARY_error=false"
)
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
) else (
endlocal
set "_CMD_LIBRARY_error=false"
)
)
if /i "%~1" == "end" (
pushd "%~dp2"
call set "_output_dir=%%CD%%"
popd
)
if /i "%~1" == "end" (
if not defined CMD_LIBRARY (
set CMD_LIBRARY_CASE=IMPORT.CMD
set "BASE=%~dpnx0\.."
pushd "%~dpnx0"\..\
REM \\// Define CMD LIBRARY here ("." is relative to "import.cmd" parent directory):
REM if CMD_LIBRARY is not defined outside import.cmd, "." (used here) is related to import.cmd parent directory:
set "CMD_LIBRARY=."
REM //\\ Define CMD LIBRARY here ("." is relative to "import.cmd" parent directory):
) else (
set CMD_LIBRARY_CASE=MAIN.CMD
set "BASE=%~dpnx2\.."
REM if CMD_LIBRARY is defined outside the "import.cmd" script, "." (used in CMD_LIBRARY) is related to "main program" parent directory
pushd "%~dpnx2"\..
)
)
if /i "%~1" == "end" (
call :DeQuoteOnce CMD_LIBRARY CMD_LIBRARY
call set "CMD_LIBRARY_ORIGINAL=%%CMD_LIBRARY%%"
call :TestIfPathIsUNC CMD_LIBRARY_ORIGINAL _result
setlocal EnableDelayedExpansion
if "!_result!" == "true" (
set "_error=true"
echo.
echo ERROR: UNC paths are not allowed: CMD_LIBRARY variable must not contain a UNC path^^^! Currently, it is set to: "!CMD_LIBRARY_ORIGINAL!".>>&2
echo.
echo Errors were ecountered^^^!
endlocal
set "_CMD_LIBRARY_error=true"
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
) else (
endlocal
set "_CMD_LIBRARY_error=false"
)
call pushd "%%CMD_LIBRARY%%" >nul 2>nul&&(
call set "CMD_LIBRARY=%%CD%%"
)||(
call echo ERROR: Could not access directory CMD_LIBRARY=^"%%CMD_LIBRARY%%^"^!>>&2
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
popd
exit /b 1
)
)
if /i "%~1" == "end" (
setlocal EnableDelayedExpansion
set _error=false
pushd "!BASE!"
echo.
if "!CMD_LIBRARY_CASE!" == "IMPORT.CMD" (
echo CMD_LIBRARY was defined as: "!CMD_LIBRARY_ORIGINAL!" in the file "import.cmd" and was expanded to: "!CMD_LIBRARY!"
) else (
if "!CMD_LIBRARY_CASE!" == "MAIN.CMD" (
echo CMD_LIBRARY was defined as: "!CMD_LIBRARY_ORIGINAL!" outside "import.cmd" file "%~nx2" and was expanded to: "!CMD_LIBRARY!"
)
)
for /l %%i in (1,1,!count!) do (
if not exist "!_import_list_%%i!" (
if not exist "!CMD_LIBRARY!\!_import_list_%%i!" (
rem if first time:
if not "!_error!" == "true" (
echo.
echo Directory of "!CMD_LIBRARY!":
)
echo.
echo ERROR: element "!_import_list_%%i!" does not exist or is not accessible as a standalone file/dir or as a file/dir in the directory contained by "CMD_LIBRARY" variable^^^!>>&2
set _error=true
)
)
)
popd
if "!_error!" == "true" (
endlocal
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
) else (
endlocal
)
echo OK
echo.
)
set "_error=false"
if /i "%~1" == "end" (
echo Output file is: "%_output_dir%\%_output_filename%"
echo.
echo Importing...
echo.
(
type nul>"%_output_dir%\%_output_filename%"
) 2>nul||(
echo ERROR: Could not write to file: "%_output_dir%\%_output_filename%"^!>>&2
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
)
echo Importing main script "%_main_batch_script%"
(
echo @set _import=defined
echo @REM Timestamp %date% %time%
echo.
)>>"%_output_dir%\%_output_filename%"
(
(
type "%_main_batch_script%"
)>>"%_output_dir%\%_output_filename%"
) 2>nul||(echo ERROR: Could not read file^!&set "_error=true">>&2)
(
echo.
echo.
)>>"%_output_dir%\%_output_filename%"
echo.
echo Directory of "%CMD_LIBRARY%":
if not "%CMD_LIBRARY_CASE%" == "MAIN.CMD" (
pushd "%BASE%"
)
if not defined mask (
rem If mask is not defined, import all file types:
set "mask=*"
)
for /l %%i in (1,1,%count%) do (
call set "_import_list_i=%%_import_list_%%i%%"
call :ProcedureImportCurrentFile
)
if not "%CMD_LIBRARY_CASE%" == "MAIN.CMD" (
popd
)
)
if "%~1" == "end" (
if "%_error%" == "true" (
echo.
echo Errors were ecountered^!
rem Clean up
call :CleanUp
if not "%_not_started_from_command_line%" == "0" (
call :PressAnyKey Press any key to exit...
echo.
)
exit /b 1
) else (
echo Done^!
)
call popd
popd
rem Clean up
call :CleanUp
rem Detect if script was started from command line:
call :DetectCommandLine _not_started_from_command_line
)
if "%~1" == "end" (
if "%_not_started_from_command_line%" == "0" (
set "_import="
) else (
echo.
echo Starting program...
echo.
rem Start "resulting" program:
"%_output_dir%\%_output_filename%"
)
)
goto :eof
REM \\\/// Next subroutines use jeb's syntax for working with delayed expansion: \\\///
:CleanUp
(
setlocal EnableDelayedExpansion
)
(
endlocal
if "%_CMD_LIBRARY_error%" == "true" (
set "CMD_LIBRARY="
set "_DISPLAY_WARNING=true"
) else (
set "_DISPLAY_WARNING=false"
)
set "_first_time="
for /l %%i in (1,1,%count%) do (
set "_import_list_%%i="
)
rem optional:
set "count="
set "import_path="
rem set "_output_dir="
set "_error="
set "_main_batch_script="
rem set "_output_filename="
rem set "_import="
set "mask="
exit /b
)
:GetStrLen - by jeb - adaptation
(
setlocal EnableDelayedExpansion
set "s=!%~1!#"
set "len=0"
for %%P in (4096 2048 1024 512 256 128 64 32 16 8 4 2 1) do (
if "!s:~%%P,1!" NEQ "" (
set /a "len+=%%P"
set "s=!s:~%%P!"
)
)
)
(
endlocal
set "%~2=%len%"
exit /b
)
:EscapePathString
(
setlocal EnableDelayedExpansion
set "string=!%~1!"
call :GetStrLen string string_len
set /a string_len-=1
for /l %%i in (0,1,!string_len!) do (
rem escape "^", "(", ")", "!", "&"
if "!string:~%%i,1!" == "^" (
set "result=!result!^^^^"
) else (
if "!string:~%%i,1!" == "(" (
set "result=!result!^^^("
) else (
if "!string:~%%i,1!" == ")" (
set "result=!result!^^^)"
) else (
if "!string:~%%i,1!" == "^!" (
set "result=!result!^^^!"
) else (
if "!string:~%%i,1!" == "&" (
set "result=!result!^^^&"
) else (
if "!string:~%%i,1!" == "%%" (
set "result=!result!%%"
) else (
set "result=!result!!string:~%%i,1!"
)
)
)
)
)
)
)
)
(
endlocal
set "%~2=%result%"
exit /b
)
:PressAnyKey
set /p=%*<nul
pause>nul
goto :eof
:DeQuoteOnce
(
setlocal EnableDelayedExpansion
set "string=!%~1!"
if "!string!" == """" (
endlocal
set "%~2=%string%"
exit /b
)
rem In order to work with " we replace it with a special character like < > | that is not allowed in file paths:
set "string=!string:"=^<!"
if "!string:~0,1!" == "<" (
if "!string:~-1,1!" == "<" (
set "string=!string:~1,-1!"
)
)
rem restore " in string (replace < with "):
set "string=!string:<="!"
)
(
endlocal
set "%~2=%string%"
exit /b
)
:TestIfPathIsUNC
(
setlocal EnableDelayedExpansion
set "_current_path=!%~1!"
set "_is_unc_path=true"
if defined _current_path (
if "!_current_path:\\=!" == "!_current_path!" (
set "_is_unc_path=false"
)
) else (
set "_is_unc_path=false"
)
)
(
endlocal
set "%~2=%_is_unc_path%"
exit /b
)
:TestIfStringContains
(
setlocal EnableDelayedExpansion
echo "!%~1!"|find "!%~2!">nul 2>nul
set "_error_code=!ERRORLEVEL!"
)
(
endlocal
if "%_error_code%" == "0" (
set "%~3=true"
) else (
set "%~3=false"
)
exit /b
)
REM ///\\\ The subroutines above use jeb's syntax for working with delayed expansion: ///\\\
:DetectCommandLine
setlocal
rem Windows: XP, 7
for /f "tokens=*" %%c in ('echo "%CMDCMDLINE%"^|find "cmd /c """ /c') do (
set "_not_started_from_command_line=%%~c"
)
if "%_not_started_from_command_line%" == "0" (
rem Windows: 10
for /f "tokens=*" %%c in ('echo "%CMDCMDLINE%"^|find "cmd.exe /c """ /c') do (
set "_not_started_from_command_line=%%~c"
)
)
endlocal & (
set "%~1=%_not_started_from_command_line%"
)
goto :eof
:ProcedureImportCurrentFile
setlocal
set "cc="
if not exist "%_import_list_i%" (
set "_not_a_dir=false"
pushd "%CMD_LIBRARY%\%_import_list_i%\" 1>nul 2>&1||set "_not_a_dir=true"
call :GetStrLen CD _CD_len
)
if "%_not_a_dir%" == "false" (
setlocal EnableDelayedExpansion
if not "!CD:~-1,1!" == "\" (
endlocal
set /a _CD_len+=1
) else (
endlocal
)
popd
)
if not exist "%_import_list_i%" (
if "%_not_a_dir%" == "true" (
echo Importing file "%CMD_LIBRARY%\%_import_list_i%"
(
type "%CMD_LIBRARY%\%_import_list_i%">>"%_output_dir%\%_output_filename%"
) 2>nul||(
echo ERROR: Could not read file^!>>&2
set "_error=true"
)
(
if not "%%i" == "%count%" (
echo.
echo.
) else (
echo.
)
)>>"%_output_dir%\%_output_filename%"
) else (
echo Importing dir "%_import_list_i%"
rem
pushd "%CMD_LIBRARY%\%_import_list_i%\"
set /a cc=0
for /r %%f in (%mask%); do (
set "_current_file=%%~dpnxf"
call set "r=%%_current_file:~%_CD_len%%%"
call echo Importing subfile "%%_import_list_i%%\%%r%%"
(
(
call type "%%_current_file%%"
)>>"%_output_dir%\%_output_filename%"
) 2>nul||(
echo ERROR: Could not read file^!>>&2
set "_error=true"
)
(
echo.
echo.
)>>"%_output_dir%\%_output_filename%"
set /a cc+=1
)
popd
)
) else (
set "_not_a_dir=false"
pushd "%_import_list_i%\" 1>nul 2>&1||set "_not_a_dir=true"
call :GetStrLen CD _CD_len
)
if "%_not_a_dir%" == "false" (
setlocal EnableDelayedExpansion
if not "!CD:~-1,1!" == "\" (
endlocal
set /a _CD_len+=1
) else (
endlocal
)
popd
)
if exist "%_import_list_i%" (
if "%_not_a_dir%" == "true" (
echo Importing file "%_import_list_i%"
(
type "%_import_list_i%">>"%_output_dir%\%_output_filename%"
) 2>nul||(
echo ERROR: Could not read file^!>>&2
set "_error=true"
)
(
if not "%%i" == "%count%" (
echo.
echo.
) else (
echo.
)
)>>"%_output_dir%\%_output_filename%"
) else (
rem
echo Importing dir "%_import_list_i%"
pushd "%_import_list_i%\"
set /a cc=0
for /r %%f in (%mask%); do (
set "_current_file=%%~dpnxf"
call set "r=%%_current_file:~%_CD_len%%%"
call echo Importing subfile "%%_import_list_i%%\%%r%%"
(
(
call type "%%_current_file%%"
)>>"%_output_dir%\%_output_filename%"
) 2>nul||(
echo ERROR: Could not read file^!>>&2
set "_error=true"
)
(
echo.
echo.
)>>"%_output_dir%\%_output_filename%"
set /a cc+=1
)
popd
)
)
if "%cc%" == "0" (
echo No match^!
)
endlocal & (
set "_error=%_error%"
)
goto :eof
:DisplayHelp
echo IMPORT - a .cmd utility for importing subroutines into the main script
echo.
echo NOTES: 1. This utility assumes that command extensions are enabled (default) and that delayed expansion can be enabled;
echo ALSO IMPORT MUST BE CALLED INSIDE A DISABLED DELAYED EXPANSION BLOCK/ENVIRONMENT (DEFAULT);
echo These are necessary in order for it to function correctly.
echo 2. The use of UNC paths is not supported by import. As a workarround, you can mount a UNC path to a temporary drive using "pushd".
echo The use of "*" or "?" wildcards is not supported by import. Instead, you can set the mask with a set of name and extension masks sepparated by semicolon, like: set mask="*.cmd; *.bat"
echo When the "mask" variable is set, only the filenames having the extensions contained by it are matched at import.
echo.
echo Description:
echo import organizes your batch programs on common libraries of subroutines, that you can use in the future for other programs that you build; it also makes code editing and debugging easier.
echo.
echo Usage [1]:
echo import [flags]
echo.
echo [flags] can be:
echo /install - installs import into the registry, in the Command Processor AutoRun registry key ^(adds the current location of import into the PATH variable^).
echo /? - displays help ^(how to use import^)
echo.
echo Usage [2]:
echo What it does:
echo Concatenates ^(appends^) files content containing subroutines to the main program content using the following SYNTAX:
echo REM \\//Place this in the upper part of your script ^(main program)^ \\//:
echo.
echo @echo off
echo.
echo if not defined _import ^(
echo rem OPTIONAL ^(before the "import" calls^):
echo set "CMD_LIBRARY=^<library_directory_path^>"
echo.
echo import "[FILE_PATH1]filename1" / "DIR_PATH1"
echo ...
echo import "[FILE_PATHn]filenamen" / "DIR_PATHn"
echo import end "%%~0"
echo ^)
echo.
echo REM //\\Place this in the upper part of your script ^(main program)^ //\\:
echo.
echo "filename1" .. "filenamen" represent the filenames that contain the subroutines that the user wants to import in the current ^(main^) program. The paths of these files are relative to the directory contained in the CMD_LIBRARY variable.
echo.
echo "FILE_PATH1" .. "FILE_PATHn" represent the paths of these files.
echo.
echo "DIR_PATH1" .. "DIR_PATHn" represent directories paths in which to recursivelly search and import all the files of the type defined in the variable "mask"
echo.
echo CMD_LIBRARY is a variable that contains the directory path where your library of files ^(containing subroutines^) is found.
echo.
echo We denote the script that calls "import" as "the main script".
echo.
echo By default, if not modified in outside the import.cmd script, in the import.cmd script - CMD_LIBRARY is set to "." directory and is relative to the "import.cmd" parent directory.
echo If CMD_LIBRARY directory is modified outside the import.cmd script, CMD_LIBRARY is relative to the main script parent directory.
echo.
echo Note that only the last value of "CMD_LIBRARY" encountered before `import end "%%~0"` is taken into consideration.
echo.
echo import end "%%~0" - marks the ending of importing files and the start of building of the new batch file ^(named by default tmp0001.cmd, and located in the directory in which the main script resides^).
echo.
echo "%%~0" represents the full path of the main script.
goto :eof
save it as import.cmd
call it with the /install flag in order to install it (does not require admin)
add a header like this at the begining of your main script that calls subroutines that are stored in other files - files that are going to be imported:
if not defined _import (
rem OPTIONAL (before the "import" calls):
set "CMD_LIBRARY=<library_directory_path>"
import "[FILE_PATH1]filename1" / "DIR_PATH1"
...
import "[FILE_PATHn]filenamen" / "DIR_PATHn"
import end "%~0"
)
要了解如何使用它，只需使用 /？标志调用它即可。
if /i "%~1" == "end"CALL import，否则它会中断调用者链 (test.bat将无法返回到调用者)_import 的设置，否则在发生错误时会出现问题, 或者切换到 GOTO :afterImport 结构call import end "%~f0"（或删除 %~0，因为没有帮助也可以检测到）