Annotation of gforth/kernel/files.fs, revision 1.7
1.1 anton 1: \ File specifiers 11jun93jaw
2:
1.5 anton 3: \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
1.1 anton 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:
1.7 ! crook 21: 4 Constant w/o ( -- ntype ) \ file w-o
! 22: 2 Constant r/w ( -- ntype ) \ file r-w
! 23: 0 Constant r/o ( -- ntype ) \ file r-o
1.1 anton 24:
1.7 ! crook 25: : bin ( ntype1 -- ntype2 ) \ file
1.1 anton 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>
1.3 pazsan 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 ! ;
1.1 anton 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>
1.3 pazsan 61: r> >in !
62: r> #tib !
63: r> >tib !
64: r> tibstack !
65: r> blk !
66: r> loadfile !
67: r> loadline ! >r ;
1.1 anton 68:
69: : read-loop ( i*x -- j*x )
70: BEGIN refill WHILE interpret REPEAT ;
71:
1.7 ! crook 72: : include-file ( i*x wfileid -- j*x ) \ file
1.6 crook 73: \G Interpret (process using the text interpreter) the contents of
1.7 ! crook 74: \G the file @var{wfileid}.
1.4 anton 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 ;
1.1 anton 79:
80: \ additional words only needed if there is file support
81:
1.2 jwilke 82: Warnings off
83:
1.1 anton 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:
1.2 jwilke 101: Warnings on
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