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rust-mode: Default rust-indent-offset to 4, not default-tab-width

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default-tab-width is standardly 8, but most programmers and style
guides prefer an indentation width smaller than that.  Rust itself
uses 4 space indents.  Most other Emacs modes define the indentation
width as 4 or 2 spaces, independently of the width of a Tab character.
Depending on default-tab-width makes especially little sense for
rust-mode because it sets indent-tabs-mode to nil.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This commit is contained in:
Anders Kaseorg 2013-08-28 18:09:02 -04:00
parent 9c33ef5a7c
commit 60e84809f0
1 changed files with 3 additions and 5 deletions
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8
src/etc/emacs/rust-mode.el
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@ -29,10 +29,8 @@
table))
(defcustom rust-indent-offset default-tab-width
"*Indent Rust code by this number of spaces.
The initializer is `DEFAULT-TAB-WIDTH'.")
(defcustom rust-indent-offset 4
"*Indent Rust code by this number of spaces.")
(defun rust-paren-level () (nth 0 (syntax-ppss)))
(defun rust-in-str-or-cmnt () (nth 8 (syntax-ppss)))
@ -61,7 +59,7 @@ The initializer is `DEFAULT-TAB-WIDTH'.")
;; If we're in any other token-tree / sexp, then:
;; - [ or ( means line up with the opening token
;; - { means indent to either nesting-level * tab width,
;; - { means indent to either nesting-level * rust-indent-offset,
;; or one further indent from that if either current line
;; begins with 'else', or previous line didn't end in
;; semi, comma or brace, and wasn't an attribute. PHEW.