Re: [PATCH libnetfilter_queue] build: add missing backslash to build_man.sh

[Phil Sutter <phil@nwl.cc>]

Hi Duncan,

On Fri, Oct 04, 2024 at 02:06:39PM +1000, Duncan Roe wrote:
> Search for exact match of ".RI" had a '\' to escape '.' from the regexp
> parser but was missing another '\' to escape the 1st '\' from shell.
> Had not yet caused a problem but might as well do things correctly.

Your patch looks correct and bash(1) confirms the need for escaping:

"If any part of word is quoted, the delimiter is the result of quote
removal on word, and the lines in the here-document are not expanded. If
word is unquoted, all lines of the here-document are subjected to
parameter expansion, command substitution, and arithmetic expansion, the
character sequence \<newline> is ignored, and \ must be used to quote
the characters \, $, and `."

This holds another interesting detail, though: By quoting your
delimiter, you may disable expansion entirely which might improve
readability in those ed commands?

Cheers, Phil