bug#33940: 27.0.50; ?\^c syntax confuses scanning

[Michael Heerdegen]

Hello,

in 20b858ef13f8f71fae6cbce5cdac31c4dd130600 "Prefer \... to control
chars in .el literals" woman.el has been changed to contain reader
syntaxes like "?\^]" - which apparently confuses `scan-sexps', e.g.

(scan-sexps (point-min) (point-max))
|- (scan-error "Containing expression ends prematurely" 81997 81998)

Obviously `scan-sexps' doesn't handle this kind of syntax correctly.

This confuses paren highlighting, by-sexp and by-list movement, prevents
enabling paredit mode, and such unpleasant things.

(CC'ing the author of the commit, Paul Eggert)

Thanks and regards,

Michael.



In GNU Emacs 27.0.50 (build 22, x86_64-pc-linux-gnu, GTK+ Version 3.24.2)
 of 2018-12-31 built on drachen
Repository revision: 174d64d4cefb3c49e260a2eb3d9015b0f092f922
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: Debian GNU/Linux buster/sid