Windows .bat/.cmd function library in own file?

Question

there is a nice way to build functions in DOS .bat/.cmd script. To modularize some installation scripts, it would be nice to include a file with a library of functions into an .

Answer 1

okay... quick & dirty because I'm a UNIX guy... create your "library" file

  1 @ECHO OFF

  2 SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION & PUSHD

  3 :: -----------------------------------------------

  4 :: $Id$

  5 :: 

  6 :: NAME:

  7 :: PURPOSE:

  8 :: NOTES:

  9 :: 

 10 :: INCLUDES   --------------------------------- --

 11 :: DEFINES    --------------------------------- --

 12 :: VARIABLES  --------------------------------- --

 13 :: MACROS     --------------------------------- --

 14 

 15 GOTO :MAINLINE

 16 

 17 :: FUNCTIONS  --------------------------------- --

 18 

 19 :HEADER

 20     ECHO ^<HTML^>

 21     ECHO ^<HEAD^>

 22     ECHO    ^<TITLE^>%1^</TITLE^>

 23     ECHO ^</HEAD^>

 24     ECHO ^<BODY^>

 25     GOTO :EOF

 26 

 27 :TRAILER

 28     ECHO ^</BODY^>

 29     ECHO ^</HTML^>

 30     GOTO :EOF

 31 

 32 :: MAINLINE   --------------------------------- --

 33 :MAINLINE

 34 

 35 IF /I "%1" == "HEADER"  CALL :HEADER %2

 36 IF /I "%1" == "TRAILER" CALL :TRAILER

 37 

 38 ENDLOCAL & POPD

 39 :: HISTORY     ------------------------------------

 40 :: $Log$

 41 :: END OF FILE --------------------------------- --

this should be pretty straight-forward for you... at line 15 we make the jump to mainline to begin actual execution. At lines 19 and 27 we create entry points for our routines. At lines 35 and 36 are calls to the internal routines.

now, you build the file that will call the library routines..

  1 @ECHO OFF

  2 SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION & PUSHD

  3 :: -----------------------------------------------

  4 :: $Id$

  5 :: 

  6 :: NAME:

  7 :: PURPOSE:

  8 :: NOTES:

  9 :: 

 10 :: INCLUDES   --------------------------------- --

 11 

 12 SET _LIB_=PATH\TO\LIBRARIES\LIBNAME.BAT

 13 

 14 :: DEFINES    --------------------------------- --

 15 :: VARIABLES  --------------------------------- --

 16 :: MACROS     --------------------------------- --

 17 

 18 GOTO :MAINLINE

 19 

 20 :: FUNCTIONS  --------------------------------- --

 21 :: MAINLINE   --------------------------------- --

 22 :MAINLINE

 23 

 24 call %_LIB_% header foo

 25 call %_LIB_% trailer

 26 

 27 ENDLOCAL & POPD

 28 :: HISTORY     ------------------------------------

 29 :: $Log$

 30 :: END OF FILE --------------------------------- --

line 12 "imports" the "library"... actually it's just syntactic sugar that makes the subsequent calls easier...