version 1.51, 2007/07/06 12:54:56
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version 1.61, 2012/05/26 10:20:01
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\ A less simple implementation of the blocks wordset. |
\ A less simple implementation of the blocks wordset. |
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\ Copyright (C) 1995,1996,1997,1998,2000,2003,2006 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003,2006,2007,2008,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
\ Gforth is free software; you can redistribute it and/or |
\ modify it under the terms of the GNU General Public License |
\ modify it under the terms of the GNU General Public License |
\ as published by the Free Software Foundation; either version 2 |
\ as published by the Free Software Foundation, either version 3 |
\ of the License, or (at your option) any later version. |
\ of the License, or (at your option) any later version. |
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\ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
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\ GNU General Public License for more details. |
\ GNU General Public License for more details. |
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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, see http://www.gnu.org/licenses/. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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\ A more efficient implementation would use mmap on OSs that |
\ A more efficient implementation would use mmap on OSs that |
Line 90 Defer flush-blocks ( -- ) \ gforth
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Line 89 Defer flush-blocks ( -- ) \ gforth
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: use ( "file" -- ) \ gforth |
: use ( "file" -- ) \ gforth |
\g Use @i{file} as the blocks file. |
\g Use @i{file} as the blocks file. |
name open-blocks ; |
name name-too-short? open-blocks ; |
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\ the file is opened as binary file, since it either will contain text |
\ the file is opened as binary file, since it either will contain text |
\ without newlines or binary data |
\ without newlines or binary data |
Line 125 Defer flush-blocks ( -- ) \ gforth
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Line 124 Defer flush-blocks ( -- ) \ gforth
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rdrop ; |
rdrop ; |
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: empty-buffer ( buffer -- ) \ gforth |
: empty-buffer ( buffer -- ) \ gforth |
buffer-block off ; |
dup buffer-block on buffer-dirty off ; |
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: save-buffers ( -- ) \ block |
: save-buffers ( -- ) \ block |
\G Transfer the contents of each @code{update}d block buffer to |
\G Transfer the contents of each @code{update}d block buffer to |
Line 189 Defer flush-blocks ( -- ) \ gforth
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Line 188 Defer flush-blocks ( -- ) \ gforth
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block ; |
block ; |
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User scr ( -- a-addr ) \ block-ext s-c-r |
User scr ( -- a-addr ) \ block-ext s-c-r |
\G @code{User} variable -- @i{a-addr} is the address of a cell containing |
\G @code{User} variable containing |
\G the block number of the block most recently processed by |
\G the block number of the block most recently processed by |
\G @code{list}. |
\G @code{list}. |
0 scr ! |
0 scr ! |
Line 209 User scr ( -- a-addr ) \ block-ext s-c-r
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Line 208 User scr ( -- a-addr ) \ block-ext s-c-r
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dup scr ! |
dup scr ! |
." Screen " u. |
." Screen " u. |
scr @ updated? 0= IF ." not " THEN ." modified " cr |
scr @ updated? 0= IF ." not " THEN ." modified " cr |
16 0 |
l/s 0 |
?do |
?do |
i 2 .r space scr @ block i 64 * chars + 64 type cr |
i 2 .r space scr @ block i c/l * chars + c/l type cr |
loop ; |
loop ; |
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[IFDEF] current-input |
[IFDEF] current-input |
Line 224 User scr ( -- a-addr ) \ block-ext s-c-r
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Line 223 User scr ( -- a-addr ) \ block-ext s-c-r
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Create block-input A, A, A, A, A, |
Create block-input A, A, A, A, A, |
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: load ( i*x n -- j*x ) \ block |
: load ( i*x u -- j*x ) \ block |
\G Save the current input source specification. Store @i{n} in |
\g Text-interpret block @i{u}. Block 0 cannot be @code{load}ed. |
\G @code{BLK}, set @code{>IN} to 0 and interpret. When the parse |
dup 0= -35 and throw |
\G area is exhausted, restore the input source specification. |
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block-input 0 new-tib dup loadline ! blk ! s" * a block*" loadfilename 2! |
block-input 0 new-tib dup loadline ! blk ! s" * a block*" loadfilename 2! |
['] interpret catch pop-file throw ; |
['] interpret catch pop-file throw ; |
[ELSE] |
[ELSE] |
Line 241 Create block-input A, A, A, A, A,
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Line 239 Create block-input A, A, A, A, A,
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\G @i{c-addr} is the address of the input buffer and @i{u} is the |
\G @i{c-addr} is the address of the input buffer and @i{u} is the |
\G number of characters in it. |
\G number of characters in it. |
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: load ( i*x n -- j*x ) \ block |
: load ( i*x u -- j*x ) \ block |
\G Save the current input source specification. Store @i{n} in |
\g Text-interpret block @i{u}. Block 0 cannot be @code{load}ed. |
\G @code{BLK}, set @code{>IN} to 0 and interpret. When the parse |
dup 0= -35 and throw |
\G area is exhausted, restore the input source specification. |
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s" * a block*" loadfilename>r |
s" * a block*" loadfilename>r |
push-file |
push-file |
dup loadline ! blk ! >in off ['] interpret catch |
dup loadline ! blk ! >in off ['] interpret catch |