@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.
+because it pertains to the Lisp reader, not to file I/O.@*
@xref{Input Functions}.
@item file-already-exists
@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
-This error and its subcategories do not have error-strings, because the
-error message is constructed from the data items alone when the error
-condition @code{file-error} is present.@*
+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-locked
@xref{Regular Expressions}.
@item mark-inactive
-@code{"Mark inactive"}@*
+@code{"The mark is not active now"}@*
@xref{The Mark}.
@item no-catch
@item text-read-only
@code{"Text is read-only"}@*
+This is a subcategory of @code{buffer-read-only}.@*
@xref{Special Properties}.
@item undefined-color
@item overflow-error
@code{"Arithmetic overflow error"}@*
+This is a subcategory of @code{domain-error}.@*
@xref{Math Functions}.
@item range-error
@item singularity-error
@code{"Arithmetic singularity error"}@*
+This is a subcategory of @code{domain-error}.@*
@xref{Math Functions}.
@item underflow-error
@code{"Arithmetic underflow error"}@*
+This is a subcategory of @code{domain-error}.@*
@xref{Math Functions}.
@end table