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1 | @c -*-texinfo-*- |
2 | @c This is part of the GNU Emacs Lisp Reference Manual. | |
3 | @c Copyright (C) 1990, 1991, 1992, 1993, 1999, 2001, 2002, 2003, 2004, | |
114f9c96 | 4 | @c 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
b8d4c8d0 | 5 | @c See the file elisp.texi for copying conditions. |
6336d8c3 | 6 | @setfilename ../../info/errors |
b8d4c8d0 GM |
7 | @node Standard Errors, Standard Buffer-Local Variables, GNU Emacs Internals, Top |
8 | @appendix Standard Errors | |
9 | @cindex standard errors | |
10 | ||
11 | Here is the complete list of the error symbols in standard Emacs, | |
12 | grouped by concept. The list includes each symbol's message (on the | |
13 | @code{error-message} property of the symbol) and a cross reference to a | |
14 | description of how the error can occur. | |
15 | ||
16 | Each error symbol has an @code{error-conditions} property that is a | |
17 | list of symbols. Normally this list includes the error symbol itself | |
18 | and the symbol @code{error}. Occasionally it includes additional | |
19 | symbols, which are intermediate classifications, narrower than | |
20 | @code{error} but broader than a single error symbol. For example, all | |
21 | the errors in accessing files have the condition @code{file-error}. If | |
22 | we do not say here that a certain error symbol has additional error | |
23 | conditions, that means it has none. | |
24 | ||
25 | As a special exception, the error symbol @code{quit} does not have the | |
26 | condition @code{error}, because quitting is not considered an error. | |
27 | ||
28 | @xref{Errors}, for an explanation of how errors are generated and | |
29 | handled. | |
30 | ||
31 | @table @code | |
32 | @item @var{symbol} | |
33 | @var{string}; @var{reference}. | |
34 | ||
35 | @item error | |
36 | @code{"error"}@* | |
37 | @xref{Errors}. | |
38 | ||
39 | @item quit | |
40 | @code{"Quit"}@* | |
41 | @xref{Quitting}. | |
42 | ||
43 | @item args-out-of-range | |
44 | @code{"Args out of range"}@* | |
45 | This happens when trying to access an element beyond the range of a | |
46 | sequence or buffer.@* | |
47 | @xref{Sequences Arrays Vectors}, @xref{Text}. | |
48 | ||
49 | @item arith-error | |
50 | @code{"Arithmetic error"}@* | |
51 | @xref{Arithmetic Operations}. | |
52 | ||
53 | @item beginning-of-buffer | |
54 | @code{"Beginning of buffer"}@* | |
55 | @xref{Character Motion}. | |
56 | ||
57 | @item buffer-read-only | |
58 | @code{"Buffer is read-only"}@* | |
59 | @xref{Read Only Buffers}. | |
60 | ||
61 | @item coding-system-error | |
62 | @code{"Invalid coding system"}@* | |
63 | @xref{Lisp and Coding Systems}. | |
64 | ||
65 | @item cyclic-function-indirection | |
5338dc0b | 66 | @code{"Symbol's chain of function indirections contains a loop"}@* |
b8d4c8d0 GM |
67 | @xref{Function Indirection}. |
68 | ||
69 | @item cyclic-variable-indirection | |
5338dc0b | 70 | @code{"Symbol's chain of variable indirections contains a loop"}@* |
b8d4c8d0 GM |
71 | @xref{Variable Aliases}. |
72 | ||
73 | @item end-of-buffer | |
74 | @code{"End of buffer"}@* | |
75 | @xref{Character Motion}. | |
76 | ||
77 | @item end-of-file | |
78 | @code{"End of file during parsing"}@* | |
79 | Note that this is not a subcategory of @code{file-error}, | |
80 | because it pertains to the Lisp reader, not to file I/O.@* | |
81 | @xref{Input Functions}. | |
82 | ||
83 | @item file-already-exists | |
84 | This is a subcategory of @code{file-error}.@* | |
85 | @xref{Writing to Files}. | |
86 | ||
87 | @item file-date-error | |
88 | This is a subcategory of @code{file-error}. It occurs when | |
89 | @code{copy-file} tries and fails to set the last-modification time of | |
90 | the output file.@* | |
91 | @xref{Changing Files}. | |
92 | ||
93 | @item file-error | |
94 | We do not list the error-strings of this error and its subcategories, | |
95 | because the error message is normally constructed from the data items | |
96 | alone when the error condition @code{file-error} is present. Thus, | |
97 | the error-strings are not very relevant. However, these error symbols | |
98 | do have @code{error-message} properties, and if no data is provided, | |
99 | the @code{error-message} property @emph{is} used.@* | |
100 | @xref{Files}. | |
101 | ||
102 | @item file-locked | |
103 | This is a subcategory of @code{file-error}.@* | |
104 | @xref{File Locks}. | |
105 | ||
106 | @item file-supersession | |
107 | This is a subcategory of @code{file-error}.@* | |
108 | @xref{Modification Time}. | |
109 | ||
110 | @item ftp-error | |
111 | This is a subcategory of @code{file-error}, which results from problems | |
112 | in accessing a remote file using ftp.@* | |
113 | @xref{Remote Files,,, emacs, The GNU Emacs Manual}. | |
114 | ||
115 | @item invalid-function | |
116 | @code{"Invalid function"}@* | |
117 | @xref{Function Indirection}. | |
118 | ||
119 | @item invalid-read-syntax | |
120 | @code{"Invalid read syntax"}@* | |
121 | @xref{Printed Representation}. | |
122 | ||
123 | @item invalid-regexp | |
124 | @code{"Invalid regexp"}@* | |
125 | @xref{Regular Expressions}. | |
126 | ||
127 | @item mark-inactive | |
128 | @code{"The mark is not active now"}@* | |
129 | @xref{The Mark}. | |
130 | ||
131 | @item no-catch | |
132 | @code{"No catch for tag"}@* | |
133 | @xref{Catch and Throw}. | |
134 | ||
135 | @item scan-error | |
136 | @code{"Scan error"}@* | |
137 | This happens when certain syntax-parsing functions | |
138 | find invalid syntax or mismatched parentheses.@* | |
139 | @xref{List Motion}, and @ref{Parsing Expressions}. | |
140 | ||
141 | @item search-failed | |
142 | @code{"Search failed"}@* | |
143 | @xref{Searching and Matching}. | |
144 | ||
145 | @item setting-constant | |
146 | @code{"Attempt to set a constant symbol"}@* | |
147 | The values of the symbols @code{nil} and @code{t}, | |
148 | and any symbols that start with @samp{:}, | |
149 | may not be changed.@* | |
150 | @xref{Constant Variables, , Variables that Never Change}. | |
151 | ||
152 | @item text-read-only | |
153 | @code{"Text is read-only"}@* | |
154 | This is a subcategory of @code{buffer-read-only}.@* | |
155 | @xref{Special Properties}. | |
156 | ||
157 | @item undefined-color | |
158 | @code{"Undefined color"}@* | |
159 | @xref{Color Names}. | |
160 | ||
161 | @item void-function | |
162 | @code{"Symbol's function definition is void"}@* | |
163 | @xref{Function Cells}. | |
164 | ||
165 | @item void-variable | |
166 | @code{"Symbol's value as variable is void"}@* | |
167 | @xref{Accessing Variables}. | |
168 | ||
169 | @item wrong-number-of-arguments | |
170 | @code{"Wrong number of arguments"}@* | |
171 | @xref{Classifying Lists}. | |
172 | ||
173 | @item wrong-type-argument | |
174 | @code{"Wrong type argument"}@* | |
175 | @xref{Type Predicates}. | |
176 | @end table | |
177 | ||
178 | These kinds of error, which are classified as special cases of | |
179 | @code{arith-error}, can occur on certain systems for invalid use of | |
180 | mathematical functions. | |
181 | ||
182 | @table @code | |
183 | @item domain-error | |
184 | @code{"Arithmetic domain error"}@* | |
185 | @xref{Math Functions}. | |
186 | ||
187 | @item overflow-error | |
188 | @code{"Arithmetic overflow error"}@* | |
189 | This is a subcategory of @code{domain-error}.@* | |
190 | @xref{Math Functions}. | |
191 | ||
192 | @item range-error | |
193 | @code{"Arithmetic range error"}@* | |
194 | @xref{Math Functions}. | |
195 | ||
196 | @item singularity-error | |
197 | @code{"Arithmetic singularity error"}@* | |
198 | This is a subcategory of @code{domain-error}.@* | |
199 | @xref{Math Functions}. | |
200 | ||
201 | @item underflow-error | |
202 | @code{"Arithmetic underflow error"}@* | |
203 | This is a subcategory of @code{domain-error}.@* | |
204 | @xref{Math Functions}. | |
205 | @end table | |
206 | ||
207 | @ignore | |
208 | arch-tag: 717c6048-5d9d-4c7d-9a62-df57390b6f19 | |
209 | @end ignore |