@c -*-texinfo-*-
@c This is part of the GNU Emacs Lisp Reference Manual.
-@c Copyright (C) 1990-1993, 1999, 2001-2011 Free Software Foundation, Inc.
+@c Copyright (C) 1990-1993, 1999, 2001-2013 Free Software Foundation,
+@c Inc.
@c See the file elisp.texi for copying conditions.
-@setfilename ../../info/errors
-@node Standard Errors, Standard Buffer-Local Variables, GNU Emacs Internals, Top
+@node Standard Errors
@appendix Standard Errors
@cindex standard errors
- Here is the complete list of the error symbols in standard Emacs,
+ Here is a list of the more important error symbols in standard Emacs,
grouped by concept. The list includes each symbol's message (on the
@code{error-message} property of the symbol) and a cross reference to a
description of how the error can occur.
As a special exception, the error symbol @code{quit} does not have the
condition @code{error}, because quitting is not considered an error.
+@c You can grep for "(put 'foo 'error-conditions ...) to find
+@c examples defined in Lisp. E.g., soap-client.el, sasl.el.
+ Most of these error symbols are defined in C (mainly @file{data.c}),
+but some are defined in Lisp. For example, the file @file{userlock.el}
+defines the @code{file-locked} and @code{file-supersession} errors.
+Several of the specialized Lisp libraries distributed with Emacs
+define their own error symbols. We do not attempt to list of all
+those here.
+
@xref{Errors}, for an explanation of how errors are generated and
handled.
@table @code
@item error
-@code{"error"}@*
-@xref{Errors}.
+The message is @samp{error}. @xref{Errors}.
@item quit
-@code{"Quit"}@*
-@xref{Quitting}.
+The message is @samp{Quit}. @xref{Quitting}.
@item args-out-of-range
-@code{"Args out of range"}@*
-This happens when trying to access an element beyond the range of a
-sequence or buffer.@*
-@xref{Sequences Arrays Vectors}, @xref{Text}.
+The message is @samp{Args out of range}. This happens when trying to
+access an element beyond the range of a sequence, buffer, or other
+container-like object. @xref{Sequences Arrays Vectors}, and
+@xref{Text}.
@item arith-error
-@code{"Arithmetic error"}@*
+The message is @samp{Arithmetic error}. This occurs when trying to
+perform integer division by zero. @xref{Numeric Conversions}, and
@xref{Arithmetic Operations}.
@item beginning-of-buffer
-@code{"Beginning of buffer"}@*
-@xref{Character Motion}.
+The message is @samp{Beginning of buffer}. @xref{Character Motion}.
@item buffer-read-only
-@code{"Buffer is read-only"}@*
-@xref{Read Only Buffers}.
+The message is @samp{Buffer is read-only}. @xref{Read Only Buffers}.
+
+@item circular-list
+The message is @samp{List contains a loop}. This happens when a
+circular structure is encountered. @xref{Circular Objects}.
+
+@item cl-assertion-failed
+The message is @samp{Assertion failed}. This happens when the
+@code{cl-assert} macro fails a test. @xref{Assertions,,, cl, Common Lisp
+Extensions}.
@item coding-system-error
-@code{"Invalid coding system"}@*
-@xref{Lisp and Coding Systems}.
+The message is @samp{Invalid coding system}. @xref{Lisp and Coding
+Systems}.
@item cyclic-function-indirection
-@code{"Symbol's chain of function indirections contains a loop"}@*
-@xref{Function Indirection}.
+The message is @samp{Symbol's chain of function indirections contains
+a loop}. @xref{Function Indirection}.
@item cyclic-variable-indirection
-@code{"Symbol's chain of variable indirections contains a loop"}@*
-@xref{Variable Aliases}.
+The message is @samp{Symbol's chain of variable indirections contains
+a loop}. @xref{Variable Aliases}.
+
+@item dbus-error
+The message is @samp{D-Bus error}. This is only defined if Emacs was
+compiled with D-Bus support. @xref{Errors and Events,,, dbus, D-Bus
+integration in Emacs}.
@item end-of-buffer
-@code{"End of buffer"}@*
-@xref{Character Motion}.
+The message is @samp{End of buffer}. @xref{Character Motion}.
@item end-of-file
-@code{"End of file during parsing"}@*
-Note that this is not a subcategory of @code{file-error},
-because it pertains to the Lisp reader, not to file I/O.@*
-@xref{Input Functions}.
+The message is @samp{End of file during parsing}. Note that this is
+not a subcategory of @code{file-error}, because it pertains to the
+Lisp reader, not to file I/O@. @xref{Input Functions}.
@item file-already-exists
-This is a subcategory of @code{file-error}.@*
-@xref{Writing to Files}.
+This is a subcategory of @code{file-error}. @xref{Writing to Files}.
@item file-date-error
This is a subcategory of @code{file-error}. It occurs when
@code{copy-file} tries and fails to set the last-modification time of
-the output file.@*
-@xref{Changing Files}.
+the output file. @xref{Changing Files}.
@item file-error
We do not list the error-strings of this error and its subcategories,
alone when the error condition @code{file-error} is present. Thus,
the error-strings are not very relevant. However, these error symbols
do have @code{error-message} properties, and if no data is provided,
-the @code{error-message} property @emph{is} used.@*
-@xref{Files}.
+the @code{error-message} property @emph{is} used. @xref{Files}.
+@c jka-compr.el
+@item compression-error
+This is a subcategory of @code{file-error}, which results from
+problems handling a compressed file. @xref{How Programs Do Loading}.
+
+@c userlock.el
@item file-locked
-This is a subcategory of @code{file-error}.@*
-@xref{File Locks}.
+This is a subcategory of @code{file-error}. @xref{File Locks}.
+@c userlock.el
@item file-supersession
-This is a subcategory of @code{file-error}.@*
-@xref{Modification Time}.
+This is a subcategory of @code{file-error}. @xref{Modification Time}.
+@c net/ange-ftp.el
@item ftp-error
-This is a subcategory of @code{file-error}, which results from problems
-in accessing a remote file using ftp.@*
-@xref{Remote Files,,, emacs, The GNU Emacs Manual}.
+This is a subcategory of @code{file-error}, which results from
+problems in accessing a remote file using ftp. @xref{Remote Files,,,
+emacs, The GNU Emacs Manual}.
@item invalid-function
-@code{"Invalid function"}@*
-@xref{Function Indirection}.
+The message is @samp{Invalid function}. @xref{Function Indirection}.
@item invalid-read-syntax
-@code{"Invalid read syntax"}@*
-@xref{Printed Representation}.
+The message is @samp{Invalid read syntax}. @xref{Printed
+Representation}.
@item invalid-regexp
-@code{"Invalid regexp"}@*
-@xref{Regular Expressions}.
+The message is @samp{Invalid regexp}. @xref{Regular Expressions}.
+@c simple.el
@item mark-inactive
-@code{"The mark is not active now"}@*
-@xref{The Mark}.
+The message is @samp{The mark is not active now}. @xref{The Mark}.
@item no-catch
-@code{"No catch for tag"}@*
-@xref{Catch and Throw}.
+The message is @samp{No catch for tag}. @xref{Catch and Throw}.
+
+@ignore
+@c Not actually used for anything? Probably definition should be removed.
+@item protected-field
+The message is @samp{Attempt to modify a protected file}.
+@end ignore
@item scan-error
-@code{"Scan error"}@*
-This happens when certain syntax-parsing functions
-find invalid syntax or mismatched parentheses.@*
-@xref{List Motion}, and @ref{Parsing Expressions}.
+The message is @samp{Scan error}. This happens when certain
+syntax-parsing functions find invalid syntax or mismatched
+parentheses. @xref{List Motion}, and @xref{Parsing Expressions}.
@item search-failed
-@code{"Search failed"}@*
-@xref{Searching and Matching}.
+The message is @samp{Search failed}. @xref{Searching and Matching}.
@item setting-constant
-@code{"Attempt to set a constant symbol"}@*
-The values of the symbols @code{nil} and @code{t},
-and any symbols that start with @samp{:},
-may not be changed.@*
-@xref{Constant Variables, , Variables that Never Change}.
+The message is @samp{Attempt to set a constant symbol}. This happens
+when attempting to assign values to @code{nil}, @code{t}, and keyword
+symbols. @xref{Constant Variables}.
+@c simple.el
@item text-read-only
-@code{"Text is read-only"}@*
-This is a subcategory of @code{buffer-read-only}.@*
-@xref{Special Properties}.
+The message is @samp{Text is read-only}. This is a subcategory of
+@code{buffer-read-only}. @xref{Special Properties}.
@item undefined-color
-@code{"Undefined color"}@*
-@xref{Color Names}.
+The message is @samp{Undefined color}. @xref{Color Names}.
+
+@item user-error
+The message is the empty string. @xref{Signaling Errors}.
@item void-function
-@code{"Symbol's function definition is void"}@*
+The message is @samp{Symbol's function definition is void}.
@xref{Function Cells}.
@item void-variable
-@code{"Symbol's value as variable is void"}@*
+The message is @samp{Symbol's value as variable is void}.
@xref{Accessing Variables}.
@item wrong-number-of-arguments
-@code{"Wrong number of arguments"}@*
-@xref{Classifying Lists}.
+The message is @samp{Wrong number of arguments}. @xref{Classifying
+Lists}.
@item wrong-type-argument
-@code{"Wrong type argument"}@*
-@xref{Type Predicates}.
+The message is @samp{Wrong type argument}. @xref{Type Predicates}.
@end table
- These kinds of error, which are classified as special cases of
+@ignore The following seem to be unused now.
+ The following kinds of error, which are classified as special cases of
@code{arith-error}, can occur on certain systems for invalid use of
-mathematical functions.
+mathematical functions. @xref{Math Functions}.
@table @code
@item domain-error
-@code{"Arithmetic domain error"}@*
-@xref{Math Functions}.
+The message is @samp{Arithmetic domain error}.
@item overflow-error
-@code{"Arithmetic overflow error"}@*
-This is a subcategory of @code{domain-error}.@*
-@xref{Math Functions}.
+The message is @samp{Arithmetic overflow error}. This is a subcategory
+of @code{domain-error}.
@item range-error
-@code{"Arithmetic range error"}@*
-@xref{Math Functions}.
+The message is @code{Arithmetic range error}.
@item singularity-error
-@code{"Arithmetic singularity error"}@*
-This is a subcategory of @code{domain-error}.@*
-@xref{Math Functions}.
+The message is @samp{Arithmetic singularity error}. This is a
+subcategory of @code{domain-error}.
@item underflow-error
-@code{"Arithmetic underflow error"}@*
-This is a subcategory of @code{domain-error}.@*
-@xref{Math Functions}.
+The message is @samp{Arithmetic underflow error}. This is a
+subcategory of @code{domain-error}.
@end table
+@end ignore