--- gforth/stuff.fs	1998/12/08 22:02:52	1.7
+++ gforth/stuff.fs	2000/11/29 22:21:57	1.18
@@ -1,6 +1,6 @@
 \ miscelleneous words
 
-\ Copyright (C) 1996,1997,1998 Free Software Foundation, Inc.
+\ Copyright (C) 1996,1997,1998,2000 Free Software Foundation, Inc.
 
 \ This file is part of Gforth.
 
@@ -16,10 +16,12 @@
 
 \ You should have received a copy of the GNU General Public License
 \ 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.
+
+require glocals.fs
 
 ' require alias needs ( ... "name" -- ... ) \ gforth
-\G an alias for @code{require}; exists on other systems (e.g., Win32Forth).
+\G An alias for @code{require}; exists on other systems (e.g., Win32Forth).
 \ needs is an F-PC name. we will probably switch to 'needs' in the future
 
 \ a little more compiler security
@@ -35,18 +37,72 @@ AUser CSP
 
 \ DMIN and DMAX
 
-: dmin ( d1 d2 -- d ) \ double
+: dmin ( d1 d2 -- d ) \ double d-min
     2over 2over d> IF  2swap  THEN 2drop ;
 
-: dmax ( d1 d2 -- d ) \ double
+
+: dmax ( d1 d2 -- d ) \ double d-max
     2over 2over d< IF  2swap  THEN 2drop ;
 
 \ shell commands
 
-0 Value $?
-
-: system ( addr u -- ) \ gforth
+0 Value $? ( -- n ) \ gforth dollar-question
+\G @code{Value} -- the exit status returned by the most recently executed
+\G @code{system} command.
+
+: system ( c-addr u -- ) \ gforth
+\G Pass the string specified by @var{c-addr u} to the host operating system
+\G for execution in a sub-shell.
     (system) throw TO $? ;
+
 : sh ( "..." -- ) \ gforth
+\G Parse a string and use @code{system} to pass it to the host
+\G operating system for execution in a sub-shell.
     '# parse cr system ;
 
+\ stuff
+
+: ]L ( compilation: n -- ; run-time: -- n ) \ gforth
+    \G equivalent to @code{] literal}
+    ] postpone literal ;
+
+: in-dictionary? ( x -- f )
+    forthstart dictionary-end within ;
+
+: in-return-stack? ( addr -- f )
+    rp0 @ swap - [ forthstart 6 cells + ]L @ u< ;
+
+\ const-does>
+
+: compile-literals ( w*u u -- ; run-time: -- w*u ) recursive
+    \ compile u literals, starting with the bottommost one
+    ?dup-if
+	swap >r 1- compile-literals
+	r> POSTPONE literal
+    endif ;
+
+: compile-fliterals ( r*u u -- ; run-time: -- w*u ) recursive
+    \ compile u fliterals, starting with the bottommost one
+    ?dup-if
+	{ F: r } 1- compile-fliterals
+	r POSTPONE fliteral
+    endif ;
+
+: (const-does>) ( w*uw r*ur uw ur target "name" -- )
+    \ define a colon definition "name" containing w*uw r*ur as
+    \ literals and a call to target.
+    { uw ur target }
+    header docol: cfa, \ start colon def without stack junk
+    ur compile-fliterals uw compile-literals
+    target compile, POSTPONE exit reveal ;
+
+: const-does> ( run-time: w*uw r*ur uw ur "name" -- )
+    \G Defines @var{name} and returns.@sp 0
+    \G @var{name} execution: pushes @var{w*uw r*ur}, then performs the
+    \G code following the @code{const-does>}.
+    here >r 0 POSTPONE literal
+    POSTPONE (const-does>)
+    POSTPONE ;
+    noname : POSTPONE rdrop
+    lastxt r> cell+ ! \ patch the literal
+; immediate