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Annotation of gforth/errors.fs, revision 1.16

1.1       pazsan      1: \ Load in error strings
                      2: 
1.15      anton       3: \ Copyright (C) 1995,1996,1997,1998,1999,2003 Free Software Foundation, Inc.
1.2       pazsan      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
1.11      anton      19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.2       pazsan     20: 
1.16    ! anton      21: : linked ( addr -- )
        !            22:     here over @ a, swap ! ;
1.1       pazsan     23: 
1.5       anton      24: : errstring ( addr u n -- )
                     25:     ErrLink linked
                     26:     ,
                     27:     string, align ;
                     28: 
1.1       pazsan     29: decimal
                     30: 
1.5       anton      31: -1 s" Aborted" rot errstring
                     32: -3 s" Stack overflow" rot errstring
                     33: -4 s" Stack underflow" rot errstring
                     34: -5 s" Return stack overflow" rot errstring
1.8       anton      35: -6 s" Return stack underflow" rot errstring
1.5       anton      36: -7 s" Do-loops nested too deeply" rot errstring
                     37: -8 s" Dictionary overflow" rot errstring
                     38: -9 s" Invalid memory address" rot errstring
                     39: -10 s" Division by zero" rot errstring
                     40: -11 s" Result out of range" rot errstring
                     41: -12 s" Argument type mismatch" rot errstring
                     42: -13 s" Undefined word" rot errstring
                     43: -14 s" Interpreting a compile-only word" rot errstring
                     44: -15 s" Invalid FORGET" rot errstring
                     45: -16 s" Attempt to use zero-length string as a name" rot errstring
                     46: -17 s" Pictured numeric ouput string overflow" rot errstring
                     47: -18 s" Parsed string overflow" rot errstring
                     48: -19 s" Word name too long" rot errstring
                     49: -20 s" Write to a read-only location" rot errstring
                     50: -21 s" Unsupported operation" rot errstring
                     51: -22 s" Control structure mismatch" rot errstring
                     52: -23 s" Address alignment exception" rot errstring
                     53: -24 s" Invalid numeric argument" rot errstring
                     54: -25 s" Return stack imbalance" rot errstring
                     55: -26 s" Loop parameters unavailable" rot errstring
                     56: -27 s" Invalid recursion" rot errstring
                     57: -28 s" User interrupt" rot errstring
                     58: -29 s" Compiler nesting" rot errstring
                     59: -30 s" Obsolescent feature" rot errstring
                     60: -31 s" >BODY used on non-CREATEd definition" rot errstring
                     61: -32 s" Invalid name argument" rot errstring
                     62: -33 s" Block read exception" rot errstring
                     63: -34 s" Block write exception" rot errstring
                     64: -35 s" Invalid block number" rot errstring
                     65: -36 s" Invalid file position" rot errstring
                     66: -37 s" File I/O exception" rot errstring
                     67: -38 s" Non-existent file" rot errstring
                     68: -39 s" Unexpected end of file" rot errstring
                     69: -40 s" Invalid BASE for floating point conversion" rot errstring
                     70: -41 s" Loss of precision" rot errstring
                     71: -42 s" Floating-point divide by zero" rot errstring
                     72: -43 s" Floating-point result out of range" rot errstring
                     73: -44 s" Floating-point stack overflow" rot errstring
                     74: -45 s" Floating-point stack underflow" rot errstring
                     75: -46 s" Floating-point invalid argument" rot errstring
                     76: -47 s" Compilation word list deleted" rot errstring
                     77: -48 s" invalid POSTPONE" rot errstring
                     78: -49 s" Search-order overflow" rot errstring
                     79: -50 s" Search-order underflow" rot errstring
                     80: -51 s" Compilation word list changed" rot errstring
                     81: -52 s" Control-flow stack overflow" rot errstring
                     82: -53 s" Exception stack overflow" rot errstring
                     83: -54 s" Floating-point underflow" rot errstring
                     84: -55 s" Floating-point unidentified fault" rot errstring
                     85: -56 s" QUIT" rot errstring
                     86: -57 s" Error in sending or receiving a character" rot errstring
                     87: -58 s" [IF], [ELSE], [THEN] error" rot errstring
1.12      anton      88: 
                     89: \ Gforth's errors:
                     90: 
                     91: -2048 s" Cannot tick compile-only word (try COMP' ... DROP)" rot errstring
1.13      anton      92: -2049 s" Write to broken pipe" rot errstring
1.12      anton      93: 
1.13      anton      94: variable next-exception -2050 next-exception !
1.12      anton      95: 
                     96: : exception ( addr u -- n ) \ exception- gforth
                     97:     \G @var{n} is a previously unused @code{throw} value in the range
                     98:     \G (-4095...-256). Consecutive calls to @code{exception} return
                     99:     \G consecutive decreasing numbers. Gforth uses the string
                    100:     \G @var{addr u} as an error message.
                    101:     next-exception @ errstring
                    102:     next-exception @
                    103:     -1 next-exception +! ;
                    104: 
1.14      anton     105: -2049 constant broken-pipe-error ( -- n ) \ gforth
                    106: \G the error number for a broken pipe
1.12      anton     107: