f7245d2372
Doing:
!access(...) == 0
Is equivalent to:
(!access(...)) == 0
Not:
!(access(...) == 0)
And throws this warning under clang:
mu-store.cc:77:6: warning: logical not is only applied to the left hand
side of this comparison [-Wlogical-not-parentheses]
if (!access(xpath, F_OK) == 0) {
^ ~~
mu-store.cc:77:6: note: add parentheses after the '!' to evaluate the
comparison first
if (!access(xpath, F_OK) == 0) {
^
( )
mu-store.cc:77:6: note: add parentheses around left hand side expression
to silence this warning
if (!access(xpath, F_OK) == 0) {
^
( )
It ends up doing what the author intended anyway since access() returns
-1 on error, and !-1 == 0, but just do the more obvious check and check
that we don't get 0 here with !=.
README
======
Welcome to mu!
---------------
Given the enormous amounts of e-mail many people gather and the importance of
e-mail message in our work-flows, it's essential to quickly deal with all that
mail - in particular, to instantly find that one important e-mail you need right
now.
[mu] is a tool for dealing with e-mail messages stored in the
Maildir-format. =mu='s purpose in life is to help you to quickly find the
messages you need; in addition, it allows you to view messages, extract
attachments, create new maildirs, and so on. See the [mu cheatsheet] for some
examples. =mu= is fully documented.
After indexing your messages into a [Xapian]-database, you can search them using
a custom query language. You can use various message fields or words in the
body text to find the right messages.
Built on top of the mu, are some extensions (included in this package):
- mu-for-emacs ([mu4e]): a full-featured e-mail client that runs inside emacs
- [mu-guile]: bindings for the Guile/Scheme programming language (version 2.0
and later)
- a toy GTK+-interface called 'mug' (in the 'toys/' subdir)
=mu= is written in C and a bit of C++ (to interface with Xapian), with =mu4e=
written in [Emacs-Lisp] and =mu-guile= in a mix of C and Scheme.
Note, =mu= is available in Debian/Ubuntu under the name =maildir-utils=;
apparently because they don't like short name. It's also possible to confuse
that name with the [GNU Mailutils] project (which is totally unrelated) - but
now you have been warned.
[mu]: http://www.djcbsoftware.nl/code/mu
[mu cheatsheet]: http://www.djcbsoftware.nl/code/mu/cheatsheet.html
[Xapian]: http://www.xapian.org
[mu4e]: http://www.djcbsoftware.nl/code/mu/mu4e.html
[mu-guile]: http://www.djcbsoftware.nl/code/mu/mu-guile.html
[Emacs-Lisp]: http://en.wikipedia.org/wiki/Emacs-Lisp
[GNU Mailutils]: http://mailutils.org/