Diff for /gforth/kernel/require.fs between versions 1.10 and 1.24

version 1.10, 2000/07/01 07:59:10 version 1.24, 2003/01/20 19:17:59
Line 1 Line 1
 \ require.fs  \ require.fs
   
 \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 16 Line 16
   
 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program; if not, write to the Free Software
 \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   
 \ Now: Kernel Module, Reloadable  \ Now: Kernel Module, Reloadable
   
 create included-files 0 , 0 , ( pointer to and count of included files )  create included-files 0 , 0 , ( pointer to and count of included files )
 \ here ," ./the terminal" dup c@ swap 1 + swap , A, here 2 cells -  \ note: these names must not contain a "/" or "\"; otherwise a part of
 \ ./ is confusing for the search path stuff! There should be never a .  \ that name might be used when expanding "./" (see expandtopic).
 \ in sourcefilename....  here ," *a file*" dup c@ swap 1 + swap
 here ," #terminal#" dup c@ swap 1 + swap , A, here 2 cells -  here ," *a block*" dup c@ swap 1 + swap
 create image-included-files  1 , A, ( pointer to and count of included files )  here ," *evaluated string*" dup c@ swap 1 + swap
   here ," *the terminal*" dup c@ swap 1 + swap
   , A, , A, , A, , A, here 8 cells -
   create image-included-files 4 , A, ( pointer to and count of included files )
 \ included-files points to ALLOCATEd space, while image-included-files  \ included-files points to ALLOCATEd space, while image-included-files
 \ points to ALLOTed objects, so it survives a save-system  \ points to ALLOTed objects, so it survives a save-system
   
 : loadfilename ( -- a-addr ) \ gforth  
     \G @i{a-addr} @code{2@@} produces the current file name ( @i{c-addr u} )  
     included-files 2@ loadfilename# @ min 2* cells + ;  
   
 : sourcefilename ( -- c-addr u ) \ gforth  : sourcefilename ( -- c-addr u ) \ gforth
     \G The name of the source file which is currently the input      \G The name of the source file which is currently the input
     \G source.  The result is valid only while the file is being      \G source.  The result is valid only while the file is being
     \G loaded.  If the current input source is no (stream) file, the      \G loaded.  If the current input source is no (stream) file, the
     \G result is undefined.      \G result is undefined.  In Gforth, the result is valid during the
       \G whole seesion (but not across @code{savesystem} etc.).
     loadfilename 2@ ;      loadfilename 2@ ;
   
 : sourceline# ( -- u ) \ gforth         sourceline-number  : sourceline# ( -- u ) \ gforth         sourceline-number
Line 47  create image-included-files  1 , A, ( po Line 47  create image-included-files  1 , A, ( po
     \G undefined.      \G undefined.
     loadline @ ;      loadline @ ;
   
 : init-included-files ( -- ) \ gforth  : init-included-files ( -- ) \ gforth-internal
     \G Clear the list of earlier included files.  
     image-included-files 2@ 2* cells save-mem drop ( addr )      image-included-files 2@ 2* cells save-mem drop ( addr )
     image-included-files 2@ nip included-files 2! ;      image-included-files 2@ nip included-files 2! ;
   
Line 61  create image-included-files  1 , A, ( po Line 60  create image-included-files  1 , A, ( po
     \G @file{./foo.fs}      \G @file{./foo.fs}
     included-files 2@ 0      included-files 2@ 0
     ?do ( c-addr u addr )      ?do ( c-addr u addr )
         dup >r 2@ 2over compare 0=          dup >r 2@ 2over str=
         if          if
             2drop rdrop unloop              2drop rdrop unloop
             true EXIT              true EXIT
Line 76  create image-included-files  1 , A, ( po Line 75  create image-included-files  1 , A, ( po
     2/ cell / included-files 2!      2/ cell / included-files 2!
     2! ;      2! ;
   
   has? new-input [IF]
 : included1 ( i*x file-id c-addr u -- j*x ) \ gforth  : included1 ( i*x file-id c-addr u -- j*x ) \ gforth
     \G Include the file file-id with the name given by @var{c-addr u}.      \G Include the file file-id with the name given by @var{c-addr u}.
     loadfilename# @ >r      save-mem 2dup add-included-file ( file-id )
     save-mem add-included-file ( file-id )      ['] include-file2 catch
     included-files 2@ nip 1- loadfilename# !      throw ;
     ['] include-file catch  [ELSE]
     r> loadfilename# !  : included1 ( i*x file-id c-addr u -- j*x ) \ gforth
   \G Include the file file-id with the name given by @var{c-addr u}.
       loadfilename 2@ 2>r
       save-mem 2dup loadfilename 2!
       add-included-file ( file-id )
       ['] include-file2 catch
       2r> loadfilename 2!
     throw ;      throw ;
       [THEN]
   
 : included ( i*x c-addr u -- j*x ) \ file  : included ( i*x c-addr u -- j*x ) \ file
     \G @code{include-file} the file whose name is given by the string      \G @code{include-file} the file whose name is given by the string
     \G @var{c-addr u}.      \G @var{c-addr u}.
Line 117  create image-included-files  1 , A, ( po Line 124  create image-included-files  1 , A, ( po
     \G @code{include-file} @var{file} only if it is not included already.      \G @code{include-file} @var{file} only if it is not included already.
     name required ;      name required ;
   
 0 [IF]  \ : \I
 : \I  \   here 
   here   \   0 word count
   0 word count  \   string,
   string,  \   needsrcs^ @ ! ;
   needsrcs^ @ ! ;  
   \ : .included ( -- ) \ gforth
 : .included ( -- ) \ gforth  \     \G list the names of the files that have been @code{included}
     \G list the names of the files that have been @code{included}  \   cr
   cr  \   needs^ @
   needs^ @  \   BEGIN               dup 
   BEGIN         dup   \   WHILE               dup cell+ count type cr
   WHILE         dup cell+ count type cr  \               5 spaces
                 5 spaces  \               dup cell+ count + aligned
                 dup cell+ count + aligned  \               @ dup IF count type ELSE drop THEN cr
                 @ dup IF count type ELSE drop THEN cr  \               @
                 @  \   REPEAT
   REPEAT  \   drop ;
   drop ;  
   : .strings ( addr u -- ) \ gforth
 : loadfilename#>str ( n -- adr len )      \G list the strings from an array of string descriptors at addr
 \ this converts the filenumber into the string      \G with u entries, one per line.
   loadfilenamecount @ swap -      2* cells bounds ?DO
   needs^ @          cr I 2@ type 2 cells +LOOP ;
   swap 0 ?DO dup 0= IF LEAVE THEN @ LOOP   
   dup IF cell+ count ELSE drop s" NOT FOUND" THEN ;  
 [THEN]  
   
 : loadfilename#>str ( n -- adr len )  
     included-files 2@ drop swap 2* cells + 2@ ;  
   
 : .included ( -- ) \ gforth  : .included ( -- ) \ gforth
     \G list the names of the files that have been @code{included}      \G list the names of the files that have been @code{included}
     included-files 2@ 2* cells bounds ?DO      included-files 2@ .strings ;
         cr I 2@ type  2 cells +LOOP ;    
   
 \ contains tools/newrequire.fs  
 \ \I $Id$  
   

Removed from v.1.10  
changed lines
  Added in v.1.24


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