If anyone's interested, the enclosed patch against the current CC-mode
CVS makes Emacs CC-mode very well-behaved w.r.t. identifying template
syntax. Along with various hacks in my .emacs file to customize how
it's indented, I'm able to do this automatically:
template <
class T
, class U
, class R
, class U
, template<
class F
, class H
, class G
>::type
, class U
= std::auto_ptr<
std::vector<int,
allocator<
int
>
>
>,
, groot
>
struct foo
{
typedef typename foo<
bar
>::template baz<
mumble, bag, floot
>::type boo;
};
The preceding commas are my preference, but it also handles trailing
commas nicely. If anyone's interested in culling the relevant hacks
from my .emacs file, you can find it at
http://www.boost-consulting.com/.emacs
Enjoy,
--- cc-engine.el.~5.428.~ 2003-07-31 16:13:21.000000000 -0400
+++ cc-engine.el 2003-08-04 22:26:47.000000000 -0400
@@ -5934,7 +5934,15 @@
(or (memq (char-after) '(?, ?=))
(and (c-major-mode-is 'c++-mode)
(zerop (c-backward-token-2 1 nil lim))
- (eq (char-after) ?<)))))
+ (or
+ (eq (char-after) ?<)
+ ;; handle template template arguments
+ (and (condition-case nil
+ (backward-up-list)
+ (error nil))
+ (eq (char-after) ?<)
+ ))
+ ))))
(goto-char indent-point)
(setq placeholder
(c-beginning-of-member-init-list lim))
@@ -5984,8 +5992,11 @@
(eq (char-after placeholder) ?<))))))
;; we can probably indent it just like an arglist-cont
(goto-char placeholder)
- (c-beginning-of-statement-1 lim t)
- (c-add-syntax 'template-args-cont (c-point 'boi)))
+ (while (save-excursion
+ (and (zerop (c-backward-token-2 1 t lim))
+ (looking-at "[<a-zA-Z_]\\|::")))
+ (c-backward-token-2 1 t lim))
+ (c-add-syntax 'template-args-cont (point)))
;; CASE 5D.4: perhaps a multiple inheritance line?
((and (c-major-mode-is 'c++-mode)
(save-excursion
--
Dave Abrahams
Boost Consulting
www.boost-consulting.com
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