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bug#49690: 28.0.50; ERC makes a button of `let' but not `let*'

From: J.P.
Subject: bug#49690: 28.0.50; ERC makes a button of `let' but not `let*'
Date: Thu, 22 Jul 2021 05:28:14 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Emanuel Berg <moasenwood@zoho.eu> writes:

> Maybe has something to do with asterisk? :)

Sounds reasonable to me.

As a quick experiment, adding the rest of the symbol constituents (of
the visible ASCII complement from `lisp-data-mode-syntax-table') to the
relevant `erc-button-alist' member's regexp appears to open things up.
At least it makes `let*' and `ring-insert+extend' light up, as well as
`-->' and `dash-expand:&hash?'. But who knows? Maybe folks more familiar
with this module will have brighter ideas.

(Also, it looks like this stuff touches every message, so we should
probably be somewhat careful.)

Attachment: 0001-Expand-erc-button-list-regexp-for-lisp-symbols.patch
Description: Text Data

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