Diff for /gforth/extend.fs between versions 1.40 and 1.56

version 1.40, 2000/08/09 20:04:05 version 1.56, 2005/06/28 06:45:07
Line 1 Line 1
 \ EXTEND.FS    CORE-EXT Word not fully tested!         12may93jaw  \ EXTEND.FS    CORE-EXT Word not fully tested!         12may93jaw
   
 \ Copyright (C) 1995,1998 Free Software Foundation, Inc.  \ Copyright (C) 1995,1998,2000,2003 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.
   
   
 \ May be cross-compiled  \ May be cross-compiled
Line 25  decimal Line 25  decimal
   
 \ .(                                                    12may93jaw  \ .(                                                    12may93jaw
   
 : .(   ( "ccc<paren>" -- ) \ core-ext dot-paren  : .(   ( compilation&interpretation "ccc<paren>" -- ) \ core-ext dot-paren
   \G Parse a string @i{ccc} delimited by a @code{)} (right    \G Compilation and interpretation semantics: Parse a string @i{ccc}
   \G parenthesis). Display the string. This is often used to display    \G delimited by a @code{)} (right parenthesis). Display the
   \G progress information during compilation; see examples below.    \G string. This is often used to display progress information during
     \G compilation; see examples below.
   [char] ) parse type ; immediate    [char] ) parse type ; immediate
   
 \ VALUE 2>R 2R> 2R@                                     17may93jaw  \ VALUE 2>R 2R> 2R@                                     17may93jaw
   
 \ !! 2value  \ !! 2value
   
   [ifundef] 2literal
 : 2Literal ( compilation w1 w2 -- ; run-time  -- w1 w2 ) \ double two-literal  : 2Literal ( compilation w1 w2 -- ; run-time  -- w1 w2 ) \ double two-literal
     \G Compile appropriate code such that, at run-time, cell pair @i{w1, w2} are      \G Compile appropriate code such that, at run-time, cell pair @i{w1, w2} are
     \G placed on the stack. Interpretation semantics are undefined.      \G placed on the stack. Interpretation semantics are undefined.
     swap postpone Literal  postpone Literal ; immediate restrict      swap postpone Literal  postpone Literal ; immediate restrict
   [then]
   
 ' drop alias d>s ( d -- n ) \ double            d_to_s  ' drop alias d>s ( d -- n ) \ double            d_to_s
   
Line 72  decimal Line 75  decimal
   
 \ C"                                                    17may93jaw  \ C"                                                    17may93jaw
   
 : (c")     "lit ;  
   
 : CLiteral  
     postpone (c") here over char+ allot  place align ; immediate restrict  
   
 : C" ( compilation "ccc<quote>" -- ; run-time  -- c-addr ) \ core-ext c-quote  : C" ( compilation "ccc<quote>" -- ; run-time  -- c-addr ) \ core-ext c-quote
     \G Compilation: parse a string @i{ccc} delimited by a @code{"}      \G Compilation: parse a string @i{ccc} delimited by a @code{"}
     \G (double quote). At run-time, return @i{c-addr} which      \G (double quote). At run-time, return @i{c-addr} which
Line 122  decimal Line 120  decimal
     begin      begin
         dup r@ >=          dup r@ >=
     while      while
         over 2r@ swap -text 0= if          2dup 2r@ string-prefix? if
             2swap 2drop 2r> 2drop true exit              2swap 2drop 2r> 2drop true exit
         endif          endif
         1 /string          1 /string
Line 131  decimal Line 129  decimal
   
 \ SOURCE-ID SAVE-INPUT RESTORE-INPUT                    11jun93jaw  \ SOURCE-ID SAVE-INPUT RESTORE-INPUT                    11jun93jaw
   
   [IFUNDEF] source-id
 : source-id ( -- 0 | -1 | fileid ) \ core-ext,file source-i-d  : source-id ( -- 0 | -1 | fileid ) \ core-ext,file source-i-d
     \G Return 0 (the input source is the user input device), -1 (the      \G Return 0 (the input source is the user input device), -1 (the
     \G input source is a string being processed by @code{evaluate}) or      \G input source is a string being processed by @code{evaluate}) or
Line 145  decimal Line 144  decimal
     >in @      >in @
     loadfile @      loadfile @
     if      if
         loadfile @ file-position throw #TIB @ 1+ 0 d- \ !! bug for CRLF and EOF          loadfile @ file-position throw
           [IFDEF] #fill-bytes #fill-bytes @ [ELSE] #tib @ 1+ [THEN] 0 d-
     else      else
         blk @          blk @
         linestart @          linestart @
Line 179  decimal Line 179  decimal
     r> loadline !      r> loadline !
     >in !      >in !
     false ;      false ;
   [THEN]
 \ This things we don't need, but for being complete... jaw  \ This things we don't need, but for being complete... jaw
   
 \ EXPECT SPAN                                           17may93jaw  \ EXPECT SPAN                                           17may93jaw
Line 238  variable span ( -- c-addr ) \ core-ext Line 238  variable span ( -- c-addr ) \ core-ext
     REPEAT      REPEAT
     drop      drop
     \ remember udp      \ remember udp
     udp @ , ;      udp @ ,
       \ remember dyncode-ptr
       here ['] noop , compile-prim1 finish-code ;
   
 : marker! ( mark -- )  : marker! ( mark -- )
     \ reset included files count; resize will happen on next add-included-file      \ reset included files count; resize will happen on next add-included-file
Line 265  variable span ( -- c-addr ) \ core-ext Line 267  variable span ( -- c-addr ) \ core-ext
     REPEAT      REPEAT
     drop      drop
     \ restore udp and dp      \ restore udp and dp
   [IFDEF] forget-dyncode
       dup cell+ @ forget-dyncode drop
   [THEN]
     @ udp !  dp !      @ udp !  dp !
     \ clean up vocabulary stack      \ clean up vocabulary stack
     0 vp @ 0      0 vp @ 0

Removed from v.1.40  
changed lines
  Added in v.1.56


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