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1 | @c -*-texinfo-*- |
2 | @c This is part of the GNU Emacs Lisp Reference Manual. | |
177c0ea7 | 3 | @c Copyright (C) 1990, 1991, 1992, 1993, 1999 Free Software Foundation, Inc. |
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4 | @c See the file elisp.texi for copying conditions. |
5 | @setfilename ../info/errors | |
6 | @node Standard Errors, Standard Buffer-Local Variables, GNU Emacs Internals, Top | |
7 | @appendix Standard Errors | |
8 | ||
9 | Here is the complete list of the error symbols in standard Emacs, | |
10 | grouped by concept. The list includes each symbol's message (on the | |
5632e6b4 | 11 | @code{error-message} property of the symbol) and a cross reference to a |
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12 | description of how the error can occur. |
13 | ||
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14 | Each error symbol has an @code{error-conditions} property that is a |
15 | list of symbols. Normally this list includes the error symbol itself | |
5320ab51 | 16 | and the symbol @code{error}. Occasionally it includes additional |
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17 | symbols, which are intermediate classifications, narrower than |
18 | @code{error} but broader than a single error symbol. For example, all | |
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19 | the errors in accessing files have the condition @code{file-error}. If |
20 | we do not say here that a certain error symbol has additional error | |
21 | conditions, that means it has none. | |
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22 | |
23 | As a special exception, the error symbol @code{quit} does not have the | |
24 | condition @code{error}, because quitting is not considered an error. | |
25 | ||
26 | @xref{Errors}, for an explanation of how errors are generated and | |
27 | handled. | |
28 | ||
29 | @table @code | |
30 | @item @var{symbol} | |
31 | @var{string}; @var{reference}. | |
32 | ||
33 | @item error | |
34 | @code{"error"}@* | |
35 | @xref{Errors}. | |
36 | ||
37 | @item quit | |
38 | @code{"Quit"}@* | |
39 | @xref{Quitting}. | |
40 | ||
41 | @item args-out-of-range | |
42 | @code{"Args out of range"}@* | |
43 | @xref{Sequences Arrays Vectors}. | |
44 | ||
45 | @item arith-error | |
46 | @code{"Arithmetic error"}@* | |
47 | See @code{/} and @code{%} in @ref{Numbers}. | |
48 | ||
49 | @item beginning-of-buffer | |
50 | @code{"Beginning of buffer"}@* | |
51 | @xref{Motion}. | |
52 | ||
53 | @item buffer-read-only | |
54 | @code{"Buffer is read-only"}@* | |
55 | @xref{Read Only Buffers}. | |
56 | ||
79ddc9c9 GM |
57 | @item coding-system-error |
58 | @code{"Invalid coding system"}@* | |
59 | @xref{Coding Systems}. | |
60 | ||
bfe721d1 | 61 | @item cyclic-function-indirection |
ebc6903b | 62 | @code{"Symbol's chain of function indirections\@* contains a loop"}@* |
bfe721d1 KH |
63 | @xref{Function Indirection}. |
64 | ||
571fd4d5 JH |
65 | @item cyclic-variable-indirection |
66 | @code{"Symbol's chain of variable indirections contains a loop"}@* | |
67 | @xref{Variable Aliases}. | |
68 | ||
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69 | @item end-of-buffer |
70 | @code{"End of buffer"}@* | |
71 | @xref{Motion}. | |
72 | ||
73 | @item end-of-file | |
74 | @code{"End of file during parsing"}@* | |
8241495d | 75 | Note that this is not a subcategory of @code{file-error}, |
c1bbeff0 | 76 | because it pertains to the Lisp reader, not to file I/O.@* |
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77 | @xref{Input Functions}. |
78 | ||
969fe9b5 | 79 | @item file-already-exists |
8241495d | 80 | This is a subcategory of @code{file-error}.@* |
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81 | @xref{Writing to Files}. |
82 | ||
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83 | @item file-date-error |
84 | This is a subcategory of @code{file-error}. It occurs when | |
85 | @code{copy-file} tries and fails to set the last-modification time of | |
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86 | the output file.@* |
87 | @xref{Changing Files}. | |
f9f59935 | 88 | |
5320ab51 | 89 | @item file-error |
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90 | We do not list the error-strings of this error and its subcategories, |
91 | because the error message is normally constructed from the data items | |
92 | alone when the error condition @code{file-error} is present. Thus, | |
93 | the error-strings are not very relevant. However, these error symbols | |
94 | do have @code{error-message} properties, and if no data is provided, | |
95 | the @code{error-message} property @emph{is} used.@* | |
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96 | @xref{Files}. |
97 | ||
177c0ea7 | 98 | @item file-locked |
8241495d | 99 | This is a subcategory of @code{file-error}.@* |
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100 | @xref{File Locks}. |
101 | ||
5320ab51 | 102 | @item file-supersession |
8241495d | 103 | This is a subcategory of @code{file-error}.@* |
5632e6b4 | 104 | @xref{Modification Time}. |
5320ab51 | 105 | |
79ddc9c9 GM |
106 | @item ftp-error |
107 | This is a subcategory of @code{file-error}, which results from problems | |
108 | in accessing a remote file using ftp.@* | |
0b2fb045 | 109 | @xref{Remote Files,,, emacs, The GNU Emacs Manual}. |
79ddc9c9 | 110 | |
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111 | @item invalid-function |
112 | @code{"Invalid function"}@* | |
113 | @xref{Classifying Lists}. | |
114 | ||
115 | @item invalid-read-syntax | |
116 | @code{"Invalid read syntax"}@* | |
117 | @xref{Input Functions}. | |
118 | ||
119 | @item invalid-regexp | |
120 | @code{"Invalid regexp"}@* | |
121 | @xref{Regular Expressions}. | |
122 | ||
969fe9b5 | 123 | @item mark-inactive |
c1bbeff0 | 124 | @code{"The mark is not active now"}@* |
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125 | @xref{The Mark}. |
126 | ||
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127 | @item no-catch |
128 | @code{"No catch for tag"}@* | |
129 | @xref{Catch and Throw}. | |
130 | ||
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131 | @item scan-error |
132 | @code{"Scan error"}@* | |
133 | This happens when certain syntax-parsing functions | |
134 | find invalid syntax or mismatched parentheses.@* | |
135 | @xref{List Motion}, and @ref{Parsing Expressions}. | |
136 | ||
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137 | @item search-failed |
138 | @code{"Search failed"}@* | |
139 | @xref{Searching and Matching}. | |
140 | ||
141 | @item setting-constant | |
177c0ea7 | 142 | @code{"Attempt to set a constant symbol"}@* |
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143 | The values of the symbols @code{nil} and @code{t}, |
144 | and any symbols that start with @samp{:}, | |
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145 | may not be changed.@* |
146 | @xref{Constant Variables, , Variables that Never Change}. | |
147 | ||
79ddc9c9 GM |
148 | @item text-read-only |
149 | @code{"Text is read-only"}@* | |
c1bbeff0 | 150 | This is a subcategory of @code{buffer-read-only}.@* |
79ddc9c9 GM |
151 | @xref{Special Properties}. |
152 | ||
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153 | @item undefined-color |
154 | @code{"Undefined color"}@* | |
155 | @xref{Color Names}. | |
156 | ||
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157 | @item void-function |
158 | @code{"Symbol's function definition is void"}@* | |
159 | @xref{Function Cells}. | |
160 | ||
161 | @item void-variable | |
162 | @code{"Symbol's value as variable is void"}@* | |
163 | @xref{Accessing Variables}. | |
164 | ||
165 | @item wrong-number-of-arguments | |
166 | @code{"Wrong number of arguments"}@* | |
167 | @xref{Classifying Lists}. | |
168 | ||
169 | @item wrong-type-argument | |
170 | @code{"Wrong type argument"}@* | |
171 | @xref{Type Predicates}. | |
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172 | @end table |
173 | ||
969fe9b5 | 174 | These kinds of error, which are classified as special cases of |
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175 | @code{arith-error}, can occur on certain systems for invalid use of |
176 | mathematical functions. | |
177 | ||
178 | @table @code | |
179 | @item domain-error | |
180 | @code{"Arithmetic domain error"}@* | |
181 | @xref{Math Functions}. | |
182 | ||
183 | @item overflow-error | |
184 | @code{"Arithmetic overflow error"}@* | |
c1bbeff0 | 185 | This is a subcategory of @code{domain-error}.@* |
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186 | @xref{Math Functions}. |
187 | ||
188 | @item range-error | |
189 | @code{"Arithmetic range error"}@* | |
190 | @xref{Math Functions}. | |
191 | ||
192 | @item singularity-error | |
193 | @code{"Arithmetic singularity error"}@* | |
c1bbeff0 | 194 | This is a subcategory of @code{domain-error}.@* |
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195 | @xref{Math Functions}. |
196 | ||
197 | @item underflow-error | |
198 | @code{"Arithmetic underflow error"}@* | |
c1bbeff0 | 199 | This is a subcategory of @code{domain-error}.@* |
bfe721d1 | 200 | @xref{Math Functions}. |
5320ab51 | 201 | @end table |
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202 | |
203 | @ignore | |
204 | arch-tag: 717c6048-5d9d-4c7d-9a62-df57390b6f19 | |
205 | @end ignore |