Re: [David Ponce <david.ponce@wanadoo.fr>] Re: CC Mode 5.30

[Martin Stjernholm <mast@lysator.liu.se>]

Martin Stjernholm <mast@lysator.liu.se> wrote:

>> From: David Ponce <david.ponce@wanadoo.fr>
/.../
>> That is definitively the case, when system-type is windows-nt (or
>> cygwin), Emacs can't distinguish ".c" from ".C".

I've now changed the autoload directives in cc-mode.el so that ".c"
comes before ".C" in auto-mode-alist. Still, I think the match method
used in `set-auto-mode' should be changed:

>> Here is the relevant code in function `set-auto-mode' in files.el,
>> that set `case-fold-search' before trying to `string-match' regexps
>> in `auto-mode-alist':
>>
>>              (let ((alist auto-mode-alist)
>> 		  (mode nil))
>> 	      ;; Find first matching alist entry.
>> 	      (let ((case-fold-search
>> 		     (memq system-type '(vax-vms windows-nt cygwin))))
>> 		(while (and (not mode) alist)
>> 		  (if (string-match (car (car alist)) name)
>> 		      ....
>
> Wouldn't it be better if it downcased the name and matched it case
> sensitively instead? The "normal" case in case sensitive systems is
> afaik lowercase, so patterns that are written without special
> attention to it use lowercase characters and would match if the name
> was simply downcased.
>
> Also, NT file systems can distinguish between upper and lower case
> chars visually, even if it doesn't matter when finding files. Thus it
> could be an idea to try to match the name case sensitively first, and
> if that fails do another attempt with a downcased name (or with
> case-fold-search set).