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* etc/ERC-NEWS: Mention more detailed feedback when option `erc-warn-about-blank-lines' is non-nil. * lisp/erc/erc-common.el (erc--input-split): Add `abortp' slot to allow a premature exit while validating prompt input. * lisp/erc/erc.el (erc-warn-about-blank-lines): Clarify meaning of "blank lines" in doc string, and mention interaction with companion option `erc-send-whitespace-lines'. (erc-inhibit-multiline-input): Fix inaccurate description in doc string. (erc--input-review-functions): Move `erc--discard-trailing-multiline-nulls' to end of list, after `erc--run-input-validation-checks' so that the latter doesn't have to resplit the original input string in order to issue feedback. (erc--blank-in-multiline-input-p): Remove unused internal function originally slated to be part of ERC 5.6. (erc--check-prompt-input-for-something): New trivial validation function to check if the input is empty. (erc--count-blank-lines): New function that tallies up the number of blank and whitespace-only lines in the current input. One downside of this design is that this function's conclusions aren't shared with `erc--discard-trailing-multiline-nulls', which must decide on its own how many lines to strip. (erc--check-prompt-explanation): New variable. (erc--check-prompt-input-for-multiline-blanks): Rework significantly to provide more informative messages and more sensible behavior for common cases with respect to relevant option values. (erc--check-prompt-input-functions): Add new validation function `erc--check-prompt-for-something'. (erc--run-input-validation-checks): Set `abortp' slot of `erc--input-split' when hooks return a non-string, rather than generate an unhelpful fallback message. Also print a message when the variable `erc--check-prompt-explanation' is non-nil. (erc-send-current-line): When the `abortp' slot of the current `erc--input-split' object is non-nil, forgo normal input processing. This fixes a regression in 5.6-git, which previously emitted an error message when it should have just exited the command. (erc--discard-trailing-multiline-nulls): Always run, regardless of `erc-send-whitespace-lines', and leave a blank line behind when stripping a message consisting of only blank lines. (erc--run-send-hooks): Always run hooks and surrounding logic rather than only when hooks are populated. * test/lisp/erc/erc-tests.el (erc--refresh-prompt): Add assertion and use default value for `erc--input-review-functions'. (erc-ring-previous-command): Use default value for `erc--input-review-functions' and ensure `erc-current-nick' does not error. (erc--blank-in-multiline-input-p): Remove obsolete test. (erc--check-prompt-input-functions): Update expected message. (erc--discard-trailing-multiline-nulls, erc--count-blank-lines): New tests. (erc-tests--check-prompt-input--expect, erc-tests--check-prompt-input-messages): New helper variables. (erc--check-prompt-input-for-multiline-blanks, erc--check-prompt-input-for-multiline-blanks/explanations): New tests. (erc-send-whitespace-lines): Expect hook-processing logic to pad empty lines instead of deferring to `erc-send-input-line-function'. (Bug#66073) |
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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, 2001-2023 Free Software Foundation, Inc. License: GNU General Public License version 3 or later (see COPYING)