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Re: distinguish .h files

From: Oleksandr Gavenko
Subject: Re: distinguish .h files
Date: Thu, 21 Oct 2010 16:31:52 +0300
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20101013 Thunderbird/3.1.5

On 21.10.2010 15:56, Andrea Crotti wrote:
Oleksandr Gavenko<>  writes:

I don't know exactly,...

--8<---------------cut here---------------start------------->8---
(defun c++-header-file-p ()
    "Return non-nil, if in a C++ header."
    (and (string-match "\\.h$"
                     (or (buffer-file-name)
         (re-search-forward "\\_<class\\_>" nil t))))

(add-to-list 'magic-mode-alist
             '(c++-header-file-p . c++-mode))
--8<---------------cut here---------------end--------------->8---

I use your code to get this value (add this after 'string-match'):

         (message "%s" (- (point-max) (point-min)))

I get 4000.

I don't get your point...
What's that useful for exactly?

Suppose header firstly have a lot of '#define', so 'class' keyword
far from 'magic-mode-alist'. And .h file was opened in c-mode.

I look ALT/MFS headers (not all).
Usually 'class' matches near offset in 900 bytes.

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