version 1.2, 1997/05/29 19:43:39
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version 1.29, 2006/01/31 15:25:44
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\ require.fs |
\ require.fs |
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\ Copyright (C) 1995-1997 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ 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. |
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\ Now: Kernel Module, Reloadable |
\ Now: Kernel Module, Reloadable |
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\ $Id$ |
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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 |
create image-included-files 1 , A, ( pointer to and count of included files ) |
\ that name might be used when expanding "./" (see expandtopic). |
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here ," *somewhere*" dup c@ swap 1 + swap |
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, A, here 2 cells - |
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create image-included-files 1 , 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 |
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: loadfilename ( -- a-addr ) |
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\G a-addr 2@ produces the current file name ( c-addr u ) |
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included-files 2@ loadfilename# @ min 2* cells + ; |
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: 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 |
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\G whole seesion (but not across @code{savesystem} etc.). |
loadfilename 2@ ; |
loadfilename 2@ ; |
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: sourceline# ( -- u ) \ gforth sourceline-number |
: sourceline# ( -- u ) \ gforth sourceline-number |
\G the line number of the line that is currently being interpreted |
\G The line number of the line that is currently being interpreted |
\G from a (stream) file. The first line has the number 1. If the |
\G from a (stream) file. The first line has the number 1. If the |
\G current input source is no (stream) file, the result is |
\G current input source is not a (stream) file, the result is |
\G undefined. |
\G undefined. |
loadline @ ; |
loadline @ ; |
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: init-included-files ( -- ) |
: init-included-files ( -- ) \ gforth-internal |
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! ; |
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: included? ( c-addr u -- f ) \ gforth |
: included? ( c-addr u -- f ) \ gforth |
\G true, iff filename c-addr u is in included-files |
\G True only if the file @var{c-addr u} is in the list of earlier |
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\G included files. If the file has been loaded, it may have been |
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\G specified as, say, @file{foo.fs} and found somewhere on the |
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\G Forth search path. To return @code{true} from @code{included?}, |
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\G you must specify the exact path to the file, even if that is |
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\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 |
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2/ cell / included-files 2! |
2/ cell / included-files 2! |
2! ; |
2! ; |
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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 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 |
save-mem add-included-file ( file-id ) |
includefilename 2@ 2>r 2dup includefilename 2! |
included-files 2@ nip 1- loadfilename# ! |
['] read-loop execute-parsing-named-file |
['] include-file catch |
2r> includefilename 2! ; |
r> loadfilename# ! |
[ELSE] |
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: included1 ( i*x file-id c-addr u -- j*x ) \ gforth |
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\G Include the file file-id with the name given by @var{c-addr u}. |
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save-mem 2dup loadfilename>r |
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includefilename 2@ 2>r 2dup includefilename 2! |
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add-included-file ( file-id ) |
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['] include-file2 catch |
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2r> includefilename 2! r>loadfilename |
throw ; |
throw ; |
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[THEN] |
: included ( i*x addr u -- j*x ) \ file |
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open-fpath-file included1 ; |
: included2 ( i*x c-addr u -- j*x ) \ file |
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open-fpath-file throw included1 ; |
: required ( i*x addr u -- j*x ) \ gforth |
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\G include the file with the name given by addr u, if it is not |
: required2 ( i*x addr u -- i*x ) \ gforth |
\G included already. Currently this works by comparing the name of |
\ however, it may be better to fstat the file, |
\G the file (with path) against the names of earlier included |
\ and compare the device and inode. The advantages would be: no |
\G files; however, it would probably be better to fstat the file, |
\ problems with several paths to the same file (e.g., due to |
\G and compare the device and inode. The advantages would be: no |
\ links) and we would catch files included with include-file and |
\G problems with several paths to the same file (e.g., due to |
\ write a require-file. |
\G links) and we would catch files included with include-file and |
open-fpath-file throw 2dup included? |
\G write a require-file. |
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open-fpath-file 2dup included? |
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if |
if |
2drop close-file throw |
2drop close-file throw |
else |
else |
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Line 108 create image-included-files 1 , A, ( po
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\ INCLUDE 9may93jaw |
\ INCLUDE 9may93jaw |
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: include ( "file" -- ) \ gforth |
: include ( ... "file" -- ... ) \ gforth |
name included ; |
\G @code{include-file} the file @var{file}. |
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name included2 ; |
: require ( "file" -- ) \ gforth |
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name required ; |
: require ( ... "file" -- ... ) \ gforth |
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\G @code{include-file} @var{file} only if it is not included already. |
0 [IF] |
name required2 ; |
: \I |
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here |
\ we go through execute-parsing to get nicer output on errors |
0 word count |
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string, |
: included ( i*x c-addr u -- j*x ) \ file |
needsrcs^ @ ! ; |
\G @code{include-file} the file whose name is given by the string |
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\G @var{c-addr u}. |
: .modules |
['] include execute-parsing ; |
cr |
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needs^ @ |
: required ( i*x addr u -- i*x ) \ gforth |
BEGIN dup |
\G @code{include-file} the file with the name given by @var{addr |
WHILE dup cell+ count type cr |
\G u}, if it is not @code{included} (or @code{required}) |
5 spaces |
\G already. Currently this works by comparing the name of the file |
dup cell+ count + aligned |
\G (with path) against the names of earlier included files. |
@ dup IF count type ELSE drop THEN cr |
['] require execute-parsing ; |
@ |
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REPEAT |
\ : \I |
drop ; |
\ here |
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\ 0 word count |
: loadfilename#>str ( n -- adr len ) |
\ string, |
\ this converts the filenumber into the string |
\ needsrcs^ @ ! ; |
loadfilenamecount @ swap - |
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needs^ @ |
\ : .included ( -- ) \ gforth |
swap 0 ?DO dup 0= IF LEAVE THEN @ LOOP |
\ \G list the names of the files that have been @code{included} |
dup IF cell+ count ELSE drop s" NOT FOUND" THEN ; |
\ cr |
[THEN] |
\ needs^ @ |
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\ BEGIN dup |
: loadfilename#>str ( n -- adr len ) |
\ WHILE dup cell+ count type cr |
included-files 2@ drop swap 2* cells + 2@ ; |
\ 5 spaces |
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\ dup cell+ count + aligned |
: .modules |
\ @ dup IF count type ELSE drop THEN cr |
included-files 2@ 2* cells bounds ?DO |
\ @ |
cr I 2@ type 2 cells +LOOP ; |
\ REPEAT |
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\ drop ; |
\ contains tools/newrequire.fs |
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\ \I $Id$ |
: .strings ( addr u -- ) \ gforth |
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\G list the strings from an array of string descriptors at addr |
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\G with u entries, one per line. |
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2* cells bounds ?DO |
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cr I 2@ type 2 cells +LOOP ; |
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: .included ( -- ) \ gforth |
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\G list the names of the files that have been @code{included} |
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included-files 2@ 2 cells under+ 1- .strings ; |