mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-26 07:33:47 +00:00
dcd76bd48d
836be7a112; * etc/refcards/ru-refcard.tex: Update Copyright year.86cbc6ee4a* lisp/net/tramp-sh.el: Adapt copyright yearebe8772f65; Minor fixes related to copyright years23c1ee6989; * test/manual/etags/ETAGS.good_N: Adjust to copyright ye...8d3fc7ec89* src/xfaces.c (face_for_font): Make 'hash' be uintptr_t.19dcb237b5; Add 2022 to copyright years. # Conflicts: # etc/NEWS # etc/refcards/ru-refcard.tex # lib/cdefs.h # lisp/erc/erc-dcc.el # lisp/erc/erc-imenu.el # lisp/erc/erc-replace.el # lisp/image-dired.el # lisp/progmodes/xref.el # m4/alloca.m4 # m4/byteswap.m4 # m4/errno_h.m4 # m4/getopt.m4 # m4/gnulib-common.m4 # m4/inttypes.m4 # m4/stddef_h.m4 # m4/stdint.m4 # m4/sys_socket_h.m4
267 lines
9.5 KiB
Plaintext
267 lines
9.5 KiB
Plaintext
@c -*-texinfo-*-
|
|
@c This is part of the GNU Emacs Lisp Reference Manual.
|
|
@c Copyright (C) 1990--1993, 1999, 2001--2022 Free Software Foundation,
|
|
@c Inc.
|
|
@c See the file elisp.texi for copying conditions.
|
|
@node Standard Errors
|
|
@appendix Standard Errors
|
|
@cindex standard errors
|
|
|
|
Here is a list of the more important error symbols in standard Emacs, grouped
|
|
by concept. The list includes each symbol's message and a cross reference
|
|
to a description of how the error can occur.
|
|
|
|
Each error symbol has a set of parent error conditions that is a
|
|
list of symbols. Normally this list includes the error symbol itself
|
|
and the symbol @code{error}. Occasionally it includes additional
|
|
symbols, which are intermediate classifications, narrower than
|
|
@code{error} but broader than a single error symbol. For example, all
|
|
the errors in accessing files have the condition @code{file-error}. If
|
|
we do not say here that a certain error symbol has additional error
|
|
conditions, that means it has none.
|
|
|
|
As a special exception, the error symbols @code{quit} and
|
|
@code{minibuffer-quit} don't have the condition @code{error}, because
|
|
quitting is not considered an error.
|
|
|
|
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
|
|
The message is @samp{error}. @xref{Errors}.
|
|
|
|
@item quit
|
|
The message is @samp{Quit}. @xref{Quitting}.
|
|
|
|
@item minibuffer-quit
|
|
The message is @samp{Quit}. This is a subcategory of @code{quit}.
|
|
@xref{Quitting}.
|
|
|
|
@item args-out-of-range
|
|
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 see
|
|
@ref{Text}.
|
|
|
|
@item arith-error
|
|
The message is @samp{Arithmetic error}. This occurs when trying to
|
|
perform integer division by zero. @xref{Numeric Conversions}, and
|
|
see @ref{Arithmetic Operations}.
|
|
|
|
@item beginning-of-buffer
|
|
The message is @samp{Beginning of buffer}. @xref{Character Motion}.
|
|
|
|
@item buffer-read-only
|
|
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
|
|
The message is @samp{Invalid coding system}. @xref{Lisp and Coding
|
|
Systems}.
|
|
|
|
@item cyclic-function-indirection
|
|
The message is @samp{Symbol's chain of function indirections contains
|
|
a loop}. @xref{Function Indirection}.
|
|
|
|
@item cyclic-variable-indirection
|
|
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}. @xref{Errors and Events,,, dbus,
|
|
D-Bus integration in Emacs}.
|
|
|
|
@item end-of-buffer
|
|
The message is @samp{End of buffer}. @xref{Character Motion}.
|
|
|
|
@item end-of-file
|
|
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}.
|
|
|
|
@item permission-denied
|
|
This is a subcategory of @code{file-error}, which occurs when the OS
|
|
doesn't allow Emacs to access a file or a directory for some reason.
|
|
|
|
@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}.
|
|
|
|
@item file-error
|
|
We do not list the error-strings of this error and its subcategories,
|
|
because the error message is normally constructed from the data items
|
|
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}.
|
|
|
|
@item file-missing
|
|
This is a subcategory of @code{file-error}. It occurs when an
|
|
operation attempts to act on a file that is missing. @xref{Changing
|
|
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}.
|
|
|
|
@c userlock.el
|
|
@item file-supersession
|
|
This is a subcategory of @code{file-error}. @xref{Modification Time}.
|
|
|
|
@c filenotify.el
|
|
@item file-notify-error
|
|
This is a subcategory of @code{file-error}. It happens, when a file
|
|
could not be watched for changes. @xref{File Notifications}.
|
|
|
|
@item remote-file-error
|
|
This is a subcategory of @code{file-error}, which results from
|
|
problems in accessing a remote file. @xref{Remote Files,,, emacs, The
|
|
GNU Emacs Manual}. Often, this error appears when timers, process
|
|
filters, process sentinels or special events in general try to access
|
|
a remote file, and collide with another remote file operation. In
|
|
general it is a good idea to write a bug report.
|
|
@xref{Bugs,,, emacs, The GNU Emacs Manual}.
|
|
|
|
@c net/ange-ftp.el
|
|
@item ftp-error
|
|
This is a subcategory of @code{remote-file-error}, which results from
|
|
problems in accessing a remote file using ftp. @xref{Remote Files,,,
|
|
emacs, The GNU Emacs Manual}.
|
|
|
|
@item invalid-function
|
|
The message is @samp{Invalid function}. @xref{Function Indirection}.
|
|
|
|
@item invalid-read-syntax
|
|
The message is usually @samp{Invalid read syntax}. @xref{Printed
|
|
Representation}. This error can also be raised by commands like
|
|
@code{eval-expression} when there's text following an expression. In
|
|
that case, the message is @samp{Trailing garbage following expression}.
|
|
|
|
@item invalid-regexp
|
|
The message is @samp{Invalid regexp}. @xref{Regular Expressions}.
|
|
|
|
@c simple.el
|
|
@item mark-inactive
|
|
The message is @samp{The mark is not active now}. @xref{The Mark}.
|
|
|
|
@item no-catch
|
|
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 range-error
|
|
The message is @code{Arithmetic range error}.
|
|
|
|
@item overflow-error
|
|
The message is @samp{Arithmetic overflow error}. This is a subcategory
|
|
of @code{range-error}.
|
|
This can happen with integers exceeding the @code{integer-width} limit.
|
|
@xref{Integer Basics}.
|
|
|
|
@item scan-error
|
|
The message is @samp{Scan error}. This happens when certain
|
|
syntax-parsing functions find invalid syntax or mismatched
|
|
parentheses. Conventionally raised with three argument: a
|
|
human-readable error message, the start of the obstacle that cannot be
|
|
moved over, and the end of the obstacle. @xref{List Motion}, and
|
|
see @ref{Parsing Expressions}.
|
|
|
|
@item search-failed
|
|
The message is @samp{Search failed}. @xref{Searching and Matching}.
|
|
|
|
@item setting-constant
|
|
The message is @samp{Attempt to set a constant symbol}. This happens
|
|
when attempting to assign values to @code{nil}, @code{t},
|
|
@code{most-positive-fixnum}, @code{most-negative-fixnum}, and keyword
|
|
symbols. It also happens when attempting to assign values to
|
|
@code{enable-multibyte-characters} and some other symbols whose direct
|
|
assignment is not allowed for some reason. @xref{Constant Variables}.
|
|
|
|
@c simple.el
|
|
@item text-read-only
|
|
The message is @samp{Text is read-only}. This is a subcategory of
|
|
@code{buffer-read-only}. @xref{Special Properties}.
|
|
|
|
@item undefined-color
|
|
The message is @samp{Undefined color}. @xref{Color Names}.
|
|
|
|
@item user-error
|
|
The message is the empty string. @xref{Signaling Errors}.
|
|
|
|
@item user-search-failed
|
|
This is like @samp{search-failed}, but doesn't trigger the debugger,
|
|
like @samp{user-error}. @xref{Signaling Errors}, and see @ref{Searching
|
|
and Matching}. This is used for searching in Info files, see @ref{Search
|
|
Text,,,info,Info}.
|
|
|
|
@item void-function
|
|
The message is @samp{Symbol's function definition is void}.
|
|
@xref{Function Cells}.
|
|
|
|
@item void-variable
|
|
The message is @samp{Symbol's value as variable is void}.
|
|
@xref{Accessing Variables}.
|
|
|
|
@item wrong-number-of-arguments
|
|
The message is @samp{Wrong number of arguments}. @xref{Argument List}.
|
|
|
|
@item wrong-type-argument
|
|
The message is @samp{Wrong type argument}. @xref{Type Predicates}.
|
|
|
|
@item unknown-image-type
|
|
The message is @samp{Cannot determine image type}. @xref{Images}.
|
|
|
|
@item inhibited-interaction
|
|
The message is @samp{User interaction while inhibited}. This error is
|
|
signalled when @code{inhibit-interaction} is non-@code{nil} and a user
|
|
interaction function (like @code{read-from-minibuffer}) is called.
|
|
@end table
|
|
|
|
@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. @xref{Math Functions}.
|
|
|
|
@table @code
|
|
@item domain-error
|
|
The message is @samp{Arithmetic domain error}.
|
|
|
|
@item singularity-error
|
|
The message is @samp{Arithmetic singularity error}. This is a
|
|
subcategory of @code{domain-error}.
|
|
|
|
@item underflow-error
|
|
The message is @samp{Arithmetic underflow error}. This is a
|
|
subcategory of @code{domain-error}.
|
|
@end table
|
|
@end ignore
|