--- gforth/blocks.fs 2000/08/17 12:46:57 1.30 +++ gforth/blocks.fs 2002/09/14 08:34:03 1.35 @@ -1,6 +1,6 @@ \ A less simple implementation of the blocks wordset. -\ 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. @@ -16,7 +16,7 @@ \ 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. \ A more efficient implementation would use mmap on OSs that @@ -108,6 +108,7 @@ Defer flush-blocks ( -- ) \ gforth if r@ buffer-block @ block-position r@ block-buffer chars/block r@ buffer-fid @ write-file throw + buffer-fid @ flush-file throw r@ buffer-dirty off endif rdrop ; @@ -202,6 +203,23 @@ User scr ( -- a-addr ) \ block-ext s-c-r i 2 .r space scr @ block i 64 * chars + 64 type cr loop ; +[IFDEF] current-input +:noname 2 <> -12 and throw >in ! blk ! ; + \ restore-input +:noname blk @ >in @ 2 ; \ save-input +:noname 2 ; \ source-id "*a block*" +:noname 1 blk +! 1 loadline +! true ; \ refill +:noname blk @ block chars/block ; \ source + +Create block-input A, A, A, A, A, + +: load ( i*x n -- j*x ) \ block + \G Save the current input source specification. Store @i{n} in + \G @code{BLK}, set @code{>IN} to 0 and interpret. When the parse + \G area is exhausted, restore the input source specification. + block-input 0 new-tib dup loadline ! blk ! 2 loadfilename# ! + ['] interpret catch pop-file throw ; +[ELSE] : (source) ( -- c-addr u ) blk @ ?dup IF block chars/block @@ -216,9 +234,14 @@ User scr ( -- a-addr ) \ block-ext s-c-r \G Save the current input source specification. Store @i{n} in \G @code{BLK}, set @code{>IN} to 0 and interpret. When the parse \G area is exhausted, restore the input source specification. + loadfilename# @ >r + 2 loadfilename# ! \ "*a block*" push-file dup loadline ! blk ! >in off ['] interpret catch - pop-file throw ; + pop-file + r> loadfilename# ! + throw ; +[THEN] : thru ( i*x n1 n2 -- j*x ) \ block-ext \G @code{load} the blocks @i{n1} through @i{n2} in sequence.