bug#33117: 26.1; Scheme mode: Support lacking for imenu and indentation

[Pierre Neidhardt]

I've noticed that Scheme mode is lacking some important features.
For instance, `imenu-generic-expression' does not match `define-public'.

Alex Kost has compiled a bunch of fixes:

        https://gitlab.com/alezost-config/emacs/blob/master/utils/al-scheme.el

Should we merge those changes upstream?



In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2018-10-08 built on localhost
Windowing system distributor 'The X.Org Foundation', version 11.0.12001000
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Configured using:
 'configure
 
CONFIG_SHELL=/gnu/store/rbrandv7anzjxqkr40d7fkanzssslk4b-bash-minimal-4.4.19/bin/bash
 SHELL=/gnu/store/rbrandv7anzjxqkr40d7fkanzssslk4b-bash-minimal-4.4.19/bin/bash
 --prefix=/gnu/store/812qcxpnjz17nbc0l3lsscma5dkjb96m-emacs-26.1
 --enable-fast-install'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS NOTIFY ACL
GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
GTK3 X11 THREADS

Important settings:
  value of $LANG: en_US.utf8
  locale-coding-system: utf-8-unix

<#secure method=pgpmime mode=sign>

-- 
Pierre Neidhardt
https://ambrevar.xyz/