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Re: NS font case sensitivity

From: Adrian Robert
Subject: Re: NS font case sensitivity
Date: Fri, 19 Jun 2009 23:06:35 +0300

On Jun 19, 2009, at 8:24 AM, Jason Rumney wrote:

Adrian Robert wrote:
Jason Rumney <jasonr <at> gnu.org> writes:

Is there a good reason why the entries in face-alternative-font- family-alist need to be case sensitive
on NS when they are not on other platforms?

Font family matching is case sensitive in the API used
by the NS font driver.

I'm not sure that is relevant here. This variable (actually it is exposed to lisp as face-font-family-alternatives) is only used when it has already been determined that the named font does not exist in the system, so for example on other platforms if some lisp code requests the font "Sans Serif" or "sans serif" and a font by that name is not defined, "helv", "helvetica", "arial" and "fixed" are tried as alternatives. But on NS, that list will only be used if the lisp code requests that font with matching case.

Logically, this behavior is consistent with family names being case sensitive -- the user customizing face-font-family-alternatives may want to specify different alternative lists for different family names, even if they differ only in their case. But practically, I doubt the situation will come up in that way -- so we might as well remove the ifdef to streamline the code if that is best.

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