Based on the discussion in
https://forum.syncthing.net/t/towards-syncthing-2-0/24072/35 This PR
adds the ability for Windows users to use the pipe character (|) to
escape the metacharacters *, ?, [, and { in .stignore files.
Additionally, this PR adds the ability for the user to set the escape
character to backslash, or any character they want, by adding a line in
the form:
#escape=X
(where X is any single rune), to the top of an .stignore file.
This would allow users to use the same .stignore file across platforms,
by simply adding
#escape=\
to the top of the file.
### Testing
All tests pass in CI.
### Documentation
See https://github.com/syncthing/docs/pull/919Fixes#10057: Support escaping in .stignore files on Windows
Fixes#7547: Ignore pattern with \[ and \] does not work
Ross Smith IIandGitHub
49462448d0