1: \ File specifiers 11jun93jaw
2:
3: \ Copyright (C) 1995-1997 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: sourceline# >r loadfile @ >r
41: blk @ >r tibstack @ >r >tib @ >r #tib @ >r
42: >tib @ tibstack @ = IF r@ tibstack +! THEN
43: tibstack @ >tib ! >in @ >r >r ;
44:
45: : pop-file ( throw-code -- throw-code )
46: dup IF
47: source >in @ sourceline# sourcefilename
48: error-stack dup @ dup 1+
49: max-errors 1- min error-stack !
50: 6 * cells + cell+
51: 5 cells bounds swap DO
52: I !
53: -1 cells +LOOP
54: THEN
55: r>
56: r> >in ! r> #tib ! r> >tib ! r> tibstack ! r> blk !
57: r> loadfile ! r> loadline ! >r ;
58:
59: : read-loop ( i*x -- j*x )
60: BEGIN refill WHILE interpret REPEAT ;
61:
62: : include-file ( i*x fid -- j*x ) \ file
63: push-file loadfile !
64: 0 loadline ! blk off ['] read-loop catch
65: loadfile @ close-file swap 2dup or
66: pop-file drop throw throw ;
67:
68: \ additional words only needed if there is file support
69:
70: : ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file paren
71: loadfile @ 0= IF postpone ( EXIT THEN
72: BEGIN
73: >in @
74: [char] ) parse nip
75: >in @ rot - = \ is there no delimter?
76: WHILE
77: refill 0=
78: IF
79: warnings @
80: IF
81: ." warning: ')' missing" cr
82: THEN
83: EXIT
84: THEN
85: REPEAT ; immediate
86:
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