--- gforth/Attic/errore.fs	1995/02/06 18:14:32	1.3
+++ gforth/Attic/errore.fs	1997/01/04 16:32:28	1.9
@@ -1,74 +1,131 @@
 \ ERRORE.FS English error strings                      9may93jaw
 
+\ Copyright (C) 1995 Free Software Foundation, Inc.
+
+\ This file is part of Gforth.
+
+\ Gforth is free software; you can redistribute it and/or
+\ modify it under the terms of the GNU General Public License
+\ as published by the Free Software Foundation; either version 2
+\ of the License, or (at your option) any later version.
+
+\ This program is distributed in the hope that it will be useful,
+\ but WITHOUT ANY WARRANTY; without even the implied warranty of
+\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+\ GNU General Public License for more details.
+
+\ You should have received a copy of the GNU General Public License
+\ along with this program; if not, write to the Free Software
+\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
 \ The errors are defined by a linked list, for easy adding
 \ and deleting. Speed is not neccassary at this point.
 
 AVARIABLE ErrLink              \ Linked list entry point
-0 ErrLink !
+NIL ErrLink !
 
 : ERR" ( n -- )
        ErrLink linked
        ,
-       [char] " word count
+       [char] " parse
        string, align ;
 
 decimal
 
 -1 ERR" Aborted"
-ErrLink @ unlock reloff lock \ make sure that the terminating 0 is not relocated
--3 ERR" Stack overflow"                 -4 ERR" Stack underflow"
--5 ERR" Return stack overflow"          -6 ERR" Return stack undeflow"
--7 ERR" Do-loops nested too deeply"     -8 ERR" Dictionary overflow"
--9 ERR" Invalid memory address"         -10 ERR" Division by zero"
--11 ERR" Result out of range"           -12 ERR" Argument type mismatch"
--13 ERR" Undefined word"                -14 ERR" Interpreting a compile-only word"
--15 ERR" Invalid FORGET"                -16 ERR" Attempt to use zero-length string as a name"
+-3 ERR" Stack overflow"
+-4 ERR" Stack underflow"
+-5 ERR" Return stack overflow"
+-6 ERR" Return stack undeflow"
+-7 ERR" Do-loops nested too deeply"
+-8 ERR" Dictionary overflow"
+-9 ERR" Invalid memory address"
+-10 ERR" Division by zero"
+-11 ERR" Result out of range"
+-12 ERR" Argument type mismatch"
+-13 ERR" Undefined word"
+-14 ERR" Interpreting a compile-only word"
+-15 ERR" Invalid FORGET"
+-16 ERR" Attempt to use zero-length string as a name"
 -17 ERR" Pictured numeric ouput string overflow"
--18 ERR" Parsed string overflow"        -19 ERR" Word name too long"
--20 ERR" Write to a read-only location" -21 ERR" Unsupported operation"
--22 ERR" Control structure mismatch"    -23 ERR" Address alignment exception"
--24 ERR" Invalid numeric argument"      -25 ERR" Return stack imbalance"
--26 ERR" Loop parameters unavailable"   -27 ERR" Invalid recursion"
--28 ERR" User interupt"                 -29 ERR" Compiler nesting"
--30 ERR" Obsolescent feature"           -31 ERR" >BODY used on non-CREATEd definition"
--32 ERR" Invalid name argument"         -33 ERR" Block read exception"
--34 ERR" Block write exception"         -35 ERR" Invalid block number"
--36 ERR" Invalid file position"         -37 ERR" File I/O exception"
--38 ERR" Non-existent file"             -39 ERR" Unexpected end of file"
+-18 ERR" Parsed string overflow"
+-19 ERR" Word name too long"
+-20 ERR" Write to a read-only location"
+-21 ERR" Unsupported operation"
+-22 ERR" Control structure mismatch"
+-23 ERR" Address alignment exception"
+-24 ERR" Invalid numeric argument"
+-25 ERR" Return stack imbalance"
+-26 ERR" Loop parameters unavailable"
+-27 ERR" Invalid recursion"
+-28 ERR" User interupt"
+-29 ERR" Compiler nesting"
+-30 ERR" Obsolescent feature"
+-31 ERR" >BODY used on non-CREATEd definition"
+-32 ERR" Invalid name argument"
+-33 ERR" Block read exception"
+-34 ERR" Block write exception"
+-35 ERR" Invalid block number"
+-36 ERR" Invalid file position"
+-37 ERR" File I/O exception"
+-38 ERR" Non-existent file"
+-39 ERR" Unexpected end of file"
 -40 ERR" Invalid BASE for floating point conversion"
--41 ERR" Loss of precision"             -42 ERR" Floating-point divide by zero"
+-41 ERR" Loss of precision"
+-42 ERR" Floating-point divide by zero"
 -43 ERR" Floating-point result out of range"
--44 ERR" Floating-point stack overflow" -45 ERR" Floating-point stack underflow"
+-44 ERR" Floating-point stack overflow"
+-45 ERR" Floating-point stack underflow"
 -46 ERR" Floating-point invalid argument"
--47 ERR" Compilation word list deleted" -48 ERR" invalid POSTPONE"
--49 ERR" Search-order overflow"         -50 ERR" Search-order underflow"
--51 ERR" Compilation word list changed" -52 ERR" Control-flow stack overflow"
--53 ERR" Exception stack overflow"      -54 ERR" Floating-point underflow"
+-47 ERR" Compilation word list deleted"
+-48 ERR" invalid POSTPONE"
+-49 ERR" Search-order overflow"
+-50 ERR" Search-order underflow"
+-51 ERR" Compilation word list changed"
+-52 ERR" Control-flow stack overflow"
+-53 ERR" Exception stack overflow"
+-54 ERR" Floating-point underflow"
 -55 ERR" Floating-point unidentified fault"
--56 ERR" QUIT"                          -57 ERR" Error in sending or receiving a character"
+-56 ERR" QUIT"
+-57 ERR" Error in sending or receiving a character"
 -58 ERR" [IF], [ELSE], [THEN] error"
-\ signals: ( We list them all, execpt those already present, just in case )
--256 ERR" Hangup signal"
--257 ERR" Quit signal"
--258 ERR" Illegal Instruction"
--259 ERR" Trace Trap"
--260 ERR" IOT instruction"
--261 ERR" EMT instruction" \ abort() call?
--262 ERR" Kill signal" \ cannot be caught but so what
--263 ERR" Bad arg to system call"
--264 ERR" Broken pipe"
--265 ERR" Alarm signal"
--266 ERR" Terminate signal"
--267 ERR" User signal 1"
--268 ERR" User signal 2"
+
+\ signals are handled with strsignal
+\ but some signals produce throw-codes > -256, e.g., -28
+\ signals: ( We list them all, except those already present, just in case )
+\ -256 ERR" Hangup signal"
+\ -257 ERR" Quit signal"
+\ -258 ERR" Illegal Instruction"
+\ -259 ERR" Trace Trap"
+\ -260 ERR" IOT instruction"
+\ -261 ERR" EMT instruction" \ abort() call?
+\ -262 ERR" Kill signal" \ cannot be caught but so what
+\ -263 ERR" Bad arg to system call"
+\ -264 ERR" Broken pipe"
+\ -265 ERR" Alarm signal"
+\ -266 ERR" Terminate signal"
+\ -267 ERR" User signal 1"
+\ -268 ERR" User signal 2"
+\ error numbers between -512 and -2047 are for OS errors and are
+\ handled with strerror
 
 : .error ( n -- )
-        cr ." Error: "
-        ErrLink
-        BEGIN @ dup
-        WHILE
-              2dup cell+ @ =
-              IF 2 cells + count type drop exit THEN
-        REPEAT
-        drop . ;
+    cr ." Error: "
+    ErrLink
+    BEGIN @ dup
+    WHILE
+	2dup cell+ @ =
+	IF 2 cells + count type drop exit THEN
+    REPEAT
+    drop
+    dup -511 -255 within
+    IF
+	256 + negate strsignal type exit
+    THEN
+    dup -2047 -511 within
+    IF
+	512 + negate strerror type exit
+    THEN
+    . ;