1: \ ERRORE.FS English error strings 9may93jaw
2:
3: \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2006,2007 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 3
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, see http://www.gnu.org/licenses/.
19:
20:
21: \ The errors are defined by a linked list, for easy adding
22: \ and deleting. Speed is not neccassary at this point.
23:
24: require ./io.fs
25: require ./nio.fs
26:
27: AVariable ErrLink \ Linked list entry point
28: NIL ErrLink !
29:
30: decimal
31:
32: \ error numbers between -256 and -511 represent signals
33: \ signals are handled with strsignal
34: \ but some signals produce throw-codes > -256, e.g., -28
35:
36: \ error numbers between -512 and -2047 are for OS errors and are
37: \ handled with strerror
38:
39: has? OS [IF]
40: : >stderr ( -- )
41: r> outfile-id >r stderr to outfile-id
42: >exec r> to outfile-id ;
43: [THEN]
44:
45: : .error ( n -- )
46: [ has? OS [IF] ]
47: >stderr
48: [ [THEN] ]
49: ErrLink
50: BEGIN @ dup
51: WHILE
52: 2dup cell+ @ =
53: IF
54: 2 cells + count type drop EXIT THEN
55: REPEAT
56: drop
57: [ has? os [IF] ]
58: dup -511 -255 within
59: IF
60: 256 + negate strsignal type EXIT
61: THEN
62: dup -2047 -511 within
63: IF
64: 512 + negate strerror type EXIT
65: THEN
66: [ [THEN] ]
67: ." error " dec. ;
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