Diff for /gforth/search.fs between versions 1.9 and 1.11

version 1.9, 1999/03/29 22:52:29 version 1.11, 1999/10/30 15:48:16
Line 31  Variable vp Line 31  Variable vp
   \G Set the compilation word list to the word list identified by @var{wid}.    \G Set the compilation word list to the word list identified by @var{wid}.
   current ! ;    current ! ;
   
 \ : context ( -- addr )  vp dup @ cells + ;  :noname ( -- addr )
 : vp! dup vp ! cells vp + to context ;      vp dup @ cells + ;
   is context
   
   : vp! ( u -- )
       vp ! ;
 : definitions  ( -- ) \ search  : definitions  ( -- ) \ search
   \G Make the compilation word list the same as the word list    \G Make the compilation word list the same as the word list
   \G that is currently at the top of the search order stack.    \G that is currently at the top of the search order stack.
Line 65  Variable slowvoc   0 slowvoc ! Line 69  Variable slowvoc   0 slowvoc !
   \G onto the top of the search order stack.    \G onto the top of the search order stack.
   Create wordlist drop  DOES> context ! ;    Create wordlist drop  DOES> context ! ;
   
   : check-maxvp ( n -- )
       maxvp > -49 and throw ;
   
   : push-order ( wid -- ) \ gforth
       \g Push @var{wid} on the search order.
       vp @ 1+ dup check-maxvp vp! context ! ;
   
 : also  ( -- ) \ search ext  : also  ( -- ) \ search ext
   \G Perform a @code{DUP} on the search order stack. Usually used prior    \G Perform a @code{DUP} on the search order stack. Usually used prior
   \G to @code{Forth}, @code{definitions} etc.    \G to @code{Forth}, @code{definitions} etc.
   context @ vp @ 1+ dup maxvp > abort" Vocstack full"    context @ push-order ;
   vp! context ! ;  
   
 : previous ( -- ) \ search ext  : previous ( -- ) \ search ext
   \G Perform a @code{DROP} on the search order stack, thereby removing the wid at the    \G Perform a @code{DROP} on the search order stack, thereby removing
   \G top of the (search order) stack from the search order.    \G the wid at the top of the (search order) stack from the search
   vp @ 1- dup 0= abort" Vocstack empty" vp! ;    \G order.
     vp @ 1- dup 0= -50 and throw vp! ;
   
 \ vocabulary find                                      14may93py  \ vocabulary find                                      14may93py
   
Line 156  lookup ! \ our dictionary search order b Line 167  lookup ! \ our dictionary search order b
   vp @ 0 ?DO  vp cell+ I cells + @  LOOP  vp @ ;    vp @ 0 ?DO  vp cell+ I cells + @  LOOP  vp @ ;
   
 : set-order  ( widn .. wid1 n -- ) \ thisone- search  : set-order  ( widn .. wid1 n -- ) \ thisone- search
   \G If @var{n}=0, empty the search order.      \G If @var{n}=0, empty the search order.  If @var{n}=-1, set the
   \G If @var{n}=-1, set the search order to the implementation-defined minimum search      \G search order to the implementation-defined minimum search order
   \G order (for Gforth, this is the word list @code{Root}). Otherwise, replace the      \G (for Gforth, this is the word list @code{Root}). Otherwise,
   \G existing search order with the @var{n} wid entries such that @var{wid1} represents the      \G replace the existing search order with the @var{n} wid entries
   \G word list that will be searched first and @var{widn} represents the word list that      \G such that @var{wid1} represents the word list that will be
   \G will be searched last.      \G searched first and @var{widn} represents the word list that will
   dup -1 = IF  drop Only exit  THEN  dup vp!      \G be searched last.
   ?dup IF  1- FOR  vp cell+ I cells + !  NEXT  THEN ;      dup -1 = IF
           drop only exit
       THEN
       dup check-maxvp
       dup vp!
       ?dup IF 1- FOR vp cell+ I cells + !  NEXT THEN ;
   
 : seal ( -- ) \ gforth  : seal ( -- ) \ gforth
   \G Remove all word lists from the search order stack other than the word    \G Remove all word lists from the search order stack other than the word

Removed from v.1.9  
changed lines
  Added in v.1.11


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