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a1358530f5
Define new functions to manipulate error descriptors and add support for `signal` to *re*signal a previous error. * src/eval.c (Fsignal): Make the second arg optional and document the possibility of passing a whole error descriptor to re-signal it. (signal_or_quit): Fix a few corner case issues when DATA is `nil` and ERROR_SYMBOL is an error descriptor. * lisp/subr.el (error-type-p, error--p, error-type, error-data) (error-has-type-p, error-slot-value): New function. * doc/lispref/control.texi (Handling Errors): Prefer "error descriptor" to "error description". Use the new single-arg call to `signal` to re-throw an error. Document `error-type`, `error-data` and `error-slot-value`. (Error Symbols): Document the new functions `error-type-p` and `error-has-type-p`. |
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This directory contains the architecture-independent files used by or with Emacs. This includes some text files of documentation for GNU Emacs or of interest to Emacs users, and the file of dumped docstrings for Emacs functions and variables. COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES File: emacs.icon Author: Sun Microsystems, Inc Copyright (C) 1999, 2001-2026 Free Software Foundation, Inc. License: GNU General Public License version 3 or later (see COPYING)