File:
[gforth] /
gforth /
kernel /
files.fs
Revision
1.6:
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Wed Feb 3 00:10:24 1999 UTC (25 years, 2 months ago) by
crook
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New "docclean" target for makefile (removes glossary dependencies when
rebuilding documentation). Changes to .fs files and prim are restricted
to glossary (\G) additions for the documentation; this has necessitated
the addition of new white-space in places to stop the \G stuff from
obscuring the code. Many additions to doc/gforth.ds - new sections
added, a few things moved and some sections re-written slightly. There
are a set of things to tidy up before this rev. is suitable for
release, and those will be my highest priority. I have also used
"@comment TODO" to highlight other sections I plan to work on, and
added a set of comments at the start to indicate other things I plan
to modify in the medium-term.
1: \ File specifiers 11jun93jaw
2:
3: \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
4:
5: \ This file is part of Gforth.
6:
7: \ Gforth is free software; you can redistribute it and/or
8: \ modify it under the terms of the GNU General Public License
9: \ as published by the Free Software Foundation; either version 2
10: \ of the License, or (at your option) any later version.
11:
12: \ This program is distributed in the hope that it will be useful,
13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: \ GNU General Public License for more details.
16:
17: \ You should have received a copy of the GNU General Public License
18: \ along with this program; if not, write to the Free Software
19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20:
21: 4 Constant w/o ( -- fam ) \ file w-o
22: 2 Constant r/w ( -- fam ) \ file r-w
23: 0 Constant r/o ( -- fam ) \ file r-o
24:
25: : bin ( fam1 -- fam2 ) \ file
26: 1 or ;
27:
28: \ BIN WRITE-LINE 11jun93jaw
29:
30: : write-line ( c-addr u fileid -- ior ) \ file
31: dup >r write-file
32: ?dup IF
33: r> drop EXIT
34: THEN
35: #lf r> emit-file ;
36:
37: \ include-file 07apr93py
38:
39: : push-file ( -- ) r>
40: loadline @ >r
41: loadfile @ >r
42: blk @ >r
43: tibstack @ >r
44: >tib @ >r
45: #tib @ >r
46: >in @ >r >r
47: >tib @ tibstack @ = IF #tib @ tibstack +! THEN
48: tibstack @ >tib ! ;
49:
50: : pop-file ( throw-code -- throw-code )
51: dup IF
52: source >in @ sourceline# sourcefilename
53: error-stack dup @ dup 1+
54: max-errors 1- min error-stack !
55: 6 * cells + cell+
56: 5 cells bounds swap DO
57: I !
58: -1 cells +LOOP
59: THEN
60: r>
61: r> >in !
62: r> #tib !
63: r> >tib !
64: r> tibstack !
65: r> blk !
66: r> loadfile !
67: r> loadline ! >r ;
68:
69: : read-loop ( i*x -- j*x )
70: BEGIN refill WHILE interpret REPEAT ;
71:
72: : include-file ( i*x fid -- j*x ) \ file
73: \G Interpret (process using the text interpreter) the contents of
74: \G the file @var{fid}.
75: push-file loadfile !
76: 0 loadline ! blk off ['] read-loop catch
77: loadfile @ close-file swap 2dup or
78: pop-file drop throw throw ;
79:
80: \ additional words only needed if there is file support
81:
82: Warnings off
83:
84: : ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file paren
85: loadfile @ 0= IF postpone ( EXIT THEN
86: BEGIN
87: >in @
88: [char] ) parse nip
89: >in @ rot - = \ is there no delimter?
90: WHILE
91: refill 0=
92: IF
93: warnings @
94: IF
95: ." warning: ')' missing" cr
96: THEN
97: EXIT
98: THEN
99: REPEAT ; immediate
100:
101: Warnings on
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