In many C and C++ headers it is quite common to use a macro to hide special compiler attributes for functions or classes. It would be great, if support for this could be added to cc-mode. Maybe there is a different solution to this problem.
For example:
class MY_API MyClass {};
MY_API void func();
For gcc MY_API expands to __attribute__ for visiblity, or when the VC compilers or MIN-GW are used the macro expands to the appropriate declspec. Unfortunately, the imenu regexps in cc-menus.el fail to detect such attributed classes and functions. I could modify the regexp in cc-menu.el to make this work. I added this to my .emacs:
(defvar my-c++-class-_expression_ `("Class" , (concat "^[ \t]*" ; <<==== changed to allow macro "\\(template[ \t]*<[^>]+>[ \t]*\\)?" ; there may be a `template <...>'
"\\(class\\|struct\\)[ \t]+" "\\([A-Z_]+[ \t]+\\)?" ; there may be a macro "\\(" ; the string we want to get
"[" c-alnum "_]+" ; class name "\\(<[^>]+>\\)?" ; possibly explicitly specialized "\\)" "\\([ \t\n]\\|\\\\\n\\)*[:{]"
) 4) "IMenu _expression_ for C++ classes.")
This seems to work. But I wasn't able to make it work for functions (like 'MY_API void func();' as shown above).
How could the rexexp in cc-menus.el be changed to make it work with functions? Is there a different way to make it work? (like telling it to simply ignore "MY_API")
regards, Marc
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cc-mode and imenu tags for functions and classes,
Marc Dürner<=